--- /dev/null
+/* Copyright (C) 2002 Manuel Novoa III
+ * My stdio library for linux and (soon) elks.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* This code needs a lot of clean up. Some of that is on hold until uClibc
+ * gets a better configuration system (on Erik's todo list).
+ * The other cleanup will take place during the implementation/integration of
+ * the wide char (un)formatted i/o functions which I'm currently working on.
+ */
+
+/* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
+ *
+ * This code is currently under development. Also, I plan to port
+ * it to elks which is a 16-bit environment with a fairly limited
+ * compiler. Therefore, please refrain from modifying this code
+ * and, instead, pass any bug-fixes, etc. to me. Thanks. Manuel
+ *
+ * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
+
+#define _ISOC99_SOURCE /* for ULLONG primarily... */
+#define _GNU_SOURCE
+#define _STDIO_UTILITY /* We're using _uintmaxtostr. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <stdint.h>
+#include <errno.h>
+
+#define __PRINTF_INFO_NO_BITFIELD
+#include <printf.h>
+
+#ifdef __STDIO_THREADSAFE
+#include <pthread.h>
+#endif /* __STDIO_THREADSAFE */
+
+/**********************************************************************/
+
+#define __STDIO_GLIBC_CUSTOM_PRINTF
+
+/* TODO -- move these to a configuration section? */
+#define MAX_FIELD_WIDTH 4095
+#define MAX_USER_SPEC 10
+#define MAX_POS_ARGS 10
+
+/* TODO - fix the defs below */
+#define MAX_ARGS_PER_SPEC (MAX_POS_ARGS-2)
+
+#if MAX_ARGS_PER_SPEC + 2 > MAX_POS_ARGS
+#define MAX_ARGS MAX_ARGS_PER_SPEC + 2
+#else
+#define MAX_ARGS MAX_POS_ARGS
+#endif
+
+/**********************************************************************/
+
+#define __PA_FLAG_INTMASK \
+ (__PA_FLAG_CHAR|PA_FLAG_SHORT|__PA_FLAG_INT|PA_FLAG_LONG|PA_FLAG_LONG_LONG)
+
+extern printf_function *_custom_printf_handler[MAX_USER_SPEC];
+extern printf_arginfo_function *_custom_printf_arginfo[MAX_USER_SPEC];
+extern char *_custom_printf_spec;
+
+/**********************************************************************/
+
+#define SPEC_FLAGS " +0-#'I"
+enum {
+ FLAG_SPACE = 0x01,
+ FLAG_PLUS = 0x02, /* must be 2 * FLAG_SPACE */
+ FLAG_ZERO = 0x04,
+ FLAG_MINUS = 0x08, /* must be 2 * FLAG_ZERO */
+ FLAG_HASH = 0x10,
+ FLAG_THOUSANDS = 0x20,
+ FLAG_I18N = 0x40 /* only works for d, i, u */
+};
+
+/**********************************************************************/
+
+/* float layout 01234567890123456789 TODO: B?*/
+#define SPEC_CHARS "npxXoudifFeEgGaACScs"
+enum {
+ CONV_n = 0,
+ CONV_p,
+ CONV_x, CONV_X, CONV_o, CONV_u, CONV_d, CONV_i,
+ CONV_f, CONV_F, CONV_e, CONV_E, CONV_g, CONV_G, CONV_a, CONV_A,
+ CONV_C, CONV_S, CONV_c, CONV_s,
+ CONV_m,
+ CONV_custom0 /* must be last */
+};
+
+/* p x X o u d i */
+#define SPEC_BASE { 16, 16, 16, 8, 10, 10, 10 }
+
+#define SPEC_RANGES { CONV_n, CONV_p, CONV_i, CONV_A, \
+ CONV_C, CONV_S, CONV_c, CONV_s, CONV_custom0 }
+
+#define SPEC_OR_MASK { \
+ /* n */ (PA_FLAG_PTR|PA_INT), \
+ /* p */ PA_POINTER, \
+ /* oxXudi */ PA_INT, \
+ /* fFeEgGaA */ PA_DOUBLE, \
+ /* C */ PA_WCHAR, \
+ /* S */ PA_WSTRING, \
+ /* c */ PA_CHAR, \
+ /* s */ PA_STRING, \
+}
+
+#define SPEC_AND_MASK { \
+ /* n */ (PA_FLAG_PTR|__PA_INTMASK), \
+ /* p */ PA_POINTER, \
+ /* oxXudi */ (__PA_INTMASK), \
+ /* fFeEgGaA */ (PA_FLAG_LONG_DOUBLE|PA_DOUBLE), \
+ /* C */ (PA_WCHAR), \
+ /* S */ (PA_WSTRING), \
+ /* c */ (PA_CHAR), \
+ /* s */ (PA_STRING), \
+}
+
+/**********************************************************************/
+/*
+ * In order to ease translation to what arginfo and _print_info._flags expect,
+ * we map: 0:int 1:char 2:longlong 4:long 8:short
+ * and then _flags |= (((q << 7) + q) & 0x701) and argtype |= (_flags & 0x701)
+ */
+
+/* TODO -- Fix the table below to take into account stdint.h. */
+#if PTRDIFF_MAX != INT_MAX
+#error fix QUAL_CHARS ptrdiff_t entry 't'!
+#endif
+#if SIZE_MAX != UINT_MAX
+#error fix QUAL_CHARS size_t entries 'z', 'Z'!
+#endif
+#ifndef LLONG_MAX
+#error fix QUAL_CHARS for no long long! Affects 'L', 'j', 'q', 'll'.
+#else
+#if LLONG_MAX != INTMAX_MAX
+#error fix QUAL_CHARS intmax_t entry 'j'!
+#endif
+#endif
+
+#define QUAL_CHARS { \
+ /* j:(u)intmax_t z:(s)size_t t:ptrdiff_t \0:int */ \
+ /* q:long_long Z:(s)size_t */ \
+ 'h', 'l', 'L', 'j', 'z', 't', 'q', 'Z', 0, \
+ 2, 4, 8, 8, 0, 0, 8, 0, 0, /* TODO -- fix!!! */\
+ 1, 8 \
+}
+
+/**********************************************************************/
+
+#ifdef __STDIO_VA_ARG_PTR
+#ifdef __BCC__
+#define __va_arg_ptr(ap,type) (((type *)(ap += sizeof(type))) - 1)
+#endif
+
+#if 1
+#ifdef __GNUC__
+/* TODO -- need other than for 386 as well! */
+
+#ifndef __va_rounded_size
+#define __va_rounded_size(TYPE) \
+ (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
+#endif
+#define __va_arg_ptr(AP, TYPE) \
+ (AP = (va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
+ ((void *) ((char *) (AP) - __va_rounded_size (TYPE))))
+#endif
+#endif
+#endif /* __STDIO_VA_ARG_PTR */
+
+#ifdef __va_arg_ptr
+#define GET_VA_ARG(AP,F,TYPE,ARGS) (*(AP) = __va_arg_ptr(ARGS,TYPE))
+#define GET_ARG_VALUE(AP,F,TYPE) (*((TYPE *)(*(AP))))
+#else
+typedef union {
+ wchar_t wc;
+ unsigned int u;
+ unsigned long ul;
+#ifdef ULLONG_MAX
+ unsigned long long ull;
+#endif
+#ifndef __BCC__
+ double d;
+ long double ld;
+#endif
+ void *p;
+} argvalue_t;
+
+#define GET_VA_ARG(AU,F,TYPE,ARGS) (AU->F = va_arg(ARGS,TYPE))
+#define GET_ARG_VALUE(AU,F,TYPE) ((TYPE)((AU)->F))
+#endif
+
+typedef struct {
+ const char *fmtpos; /* TODO: move below struct?? */
+ struct printf_info info;
+ int maxposarg; /* > 0 if args are positional, 0 if not, -1 if unknown */
+ int num_data_args; /* TODO: use sentinal??? */
+ unsigned int conv_num;
+ unsigned char argnumber[4]; /* width | prec | 1st data | unused */
+ int argtype[MAX_ARGS];
+ va_list arg;
+#ifdef __va_arg_ptr
+ void *argptr[MAX_ARGS];
+#else
+ /* While this is wasteful of space in the case where pos args aren't
+ * enabled, it is also needed to support custom printf handlers. */
+ argvalue_t argvalue[MAX_ARGS];
+#endif
+} ppfs_t; /* parse printf format state */
+
+/**********************************************************************/
+
+/* TODO: fix printf to return 0 and set errno if format error. Standard says
+ only returns -1 if sets error indicator for the stream. */
+
+/* TODO -- __isdigit() macro */
+#define __isdigit(c) (((unsigned int)(c - '0')) < 10)
+
+extern size_t _dtostr(FILE * fp, long double x, struct printf_info *info);
+
+#define _outnstr(stream, string, len) _stdio_fwrite(s, len, stream) /* TODO */
+
+extern int _do_one_spec(FILE * __restrict stream, ppfs_t *ppfs, int *count);
+
+extern int _ppfs_init(ppfs_t *ppfs, const char *fmt0); /* validates */
+extern void _ppfs_prepargs(ppfs_t *ppfs, va_list arg); /* sets posargptrs */
+extern void _ppfs_setargs(ppfs_t *ppfs); /* sets argptrs for current spec */
+extern int _ppfs_parsespec(ppfs_t *ppfs); /* parses specifier */
+
+/**********************************************************************/
+#ifdef L_parse_printf_format
+
+/* NOTE: This function differs from the glibc version in that parsing stops
+ * upon encountering an invalid conversion specifier. Since this is the way
+ * my printf functions work, I think it makes sense to do it that way here.
+ * Unfortunately, since glibc sets the return type as size_t, we have no way
+ * of returning that the template is illegal, other than returning 0.
+ */
+
+size_t parse_printf_format(register const char *template,
+ size_t n, int *argtypes)
+{
+ ppfs_t ppfs;
+ size_t i;
+ size_t count = 0;
+
+ if (_ppfs_init(&ppfs, template) >= 0) {
+ if (ppfs.maxposarg > 0) { /* Using positional args. */
+ count = ppfs.maxposarg;
+ if (n > count) {
+ n = count;
+ }
+ for (i = 0 ; i < n ; i++) {
+ *argtypes++ = ppfs.argtype[i];
+ }
+ } else { /* Not using positional args. */
+ while (*template) {
+ if ((*template == '%') && (*++template != '%')) {
+ ppfs.fmtpos = template;
+ _ppfs_parsespec(&ppfs); /* Can't fail. */
+ template = ppfs.fmtpos; /* Update to one past spec end. */
+ if (ppfs.info.width == INT_MIN) {
+ ++count;
+ if (n > 0) {
+ *argtypes++ = PA_INT;
+ --n;
+ }
+ }
+ if (ppfs.info.prec == INT_MIN) {
+ ++count;
+ if (n > 0) {
+ *argtypes++ = PA_INT;
+ --n;
+ }
+ }
+ for (i = 0 ; i < ppfs.num_data_args ; i++) {
+ if ((ppfs.argtype[i]) != __PA_NOARG) {
+ ++count;
+ if (n > 0) {
+ *argtypes++ = ppfs.argtype[i];
+ --n;
+ }
+ }
+ }
+ } else {
+ ++template;
+ }
+ }
+ }
+ }
+
+ return count;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_vfprintf
+
+/* We only support ascii digits (or their USC equivalent codes) in
+ * precision and width settings in *printf (wide) format strings.
+ * In other words, we don't currently support glibc's 'I' flag.
+ * We do accept it, but it is currently ignored. */
+
+/* TODO -- Implement grouping flag... on hold (locale support). */
+
+int vfprintf(FILE * __restrict stream, register const char * __restrict format,
+ va_list arg)
+{
+ ppfs_t ppfs;
+ int count, r;
+ register const char *s;
+
+ __STDIO_THREADLOCK(stream);
+
+ count = 0;
+ s = format;
+
+ if (_ppfs_init(&ppfs, format) < 0) { /* Bad format string. */
+ _outnstr(stream, format, strlen(format));
+ count = -1;
+ } else {
+ _ppfs_prepargs(&ppfs, arg);
+
+ do {
+ while (*format && (*format != '%')) {
+ ++format;
+ }
+
+ if (format-s) { /* output any literal text in format string */
+ if ( (r = _outnstr(stream, s, format-s)) < 0) {
+ count = -1;
+ break;
+ }
+ count += r;
+ }
+
+ if (!*format) { /* we're done */
+ break;
+ }
+
+ if (format[1] != '%') { /* if we get here, *format == '%' */
+ /* TODO: _do_one_spec needs to know what the output funcs are!!! */
+ ppfs.fmtpos = ++format;
+ /* TODO: check -- should only fail on stream error */
+ if ( (r = _do_one_spec(stream, &ppfs, &count)) < 0) {
+ count = -1;
+ break;
+ }
+ s = format = ppfs.fmtpos;
+ } else { /* %% means literal %, so start new string */
+ s = ++format;
+ ++format;
+ }
+ } while (1);
+ }
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return count;
+}
+#endif
+/**********************************************************************/
+#ifdef L__ppfs_init
+
+int _ppfs_init(register ppfs_t *ppfs, const char *fmt0)
+{
+ int r;
+
+ /* First, zero out everything... argnumber[], argtype[], argptr[] */
+ memset(ppfs, 0, sizeof(ppfs_t)); /* TODO: nonportable???? */
+ --ppfs->maxposarg; /* set to -1 */
+ /* now set all argtypes to no-arg */
+ {
+#if 1
+ /* TODO - use memset here since already "paid for"? */
+ register int *p = ppfs->argtype;
+
+ r = MAX_ARGS;
+ do {
+ *p++ = __PA_NOARG;
+ } while (--r);
+#else
+ /* TODO -- get rid of this?? */
+ register char *p = (char *) ((MAX_ARGS-1) * sizeof(int));
+
+ do {
+ *((int *)(((char *)ppfs) + ((int)p) + offsetof(ppfs_t,argtype))) = __PA_NOARG;
+ p -= sizeof(int);
+ } while (p);
+#endif
+ }
+
+ /*
+ * Run through the entire format string to validate it and initialize
+ * the positional arg numbers (if any).
+ */
+ {
+ register const char *fmt = fmt0;
+
+ while (*fmt) {
+ if ((*fmt == '%') && (*++fmt != '%')) {
+ ppfs->fmtpos = fmt; /* back up to the '%' */
+ if ((r = _ppfs_parsespec(ppfs)) < 0) {
+ return -1;
+ }
+ fmt = ppfs->fmtpos; /* update to one past end of spec */
+ } else {
+ ++fmt;
+ }
+ }
+ ppfs->fmtpos = fmt0; /* rewind */
+ }
+
+ /* If we have positional args, make sure we know all the types. */
+ {
+ register int *p = ppfs->argtype;
+ r = ppfs->maxposarg;
+ while (--r >= 0) {
+ if ( *p == __PA_NOARG ) { /* missing arg type!!! */
+ return -1;
+ }
+ ++p;
+ }
+ }
+
+ return 0;
+}
+#endif
+/**********************************************************************/
+#ifdef L__ppfs_prepargs
+void _ppfs_prepargs(register ppfs_t *ppfs, va_list arg)
+{
+ int i;
+
+ __va_copy(ppfs->arg, arg);
+
+ if ((i = ppfs->maxposarg) > 0) { /* init for positional args */
+ ppfs->num_data_args = i;
+ ppfs->info.width = ppfs->info.prec = ppfs->maxposarg = 0;
+ _ppfs_setargs(ppfs);
+ ppfs->maxposarg = i;
+ }
+}
+#endif
+/**********************************************************************/
+#ifdef L__ppfs_setargs
+
+void _ppfs_setargs(register ppfs_t *ppfs)
+{
+#ifdef __va_arg_ptr
+ register void **p = ppfs->argptr;
+#else
+ register argvalue_t *p = ppfs->argvalue;
+#endif
+ int i;
+
+ if (ppfs->maxposarg == 0) { /* initing for or no pos args */
+ if (ppfs->info.width == INT_MIN) {
+ ppfs->info.width =
+#ifdef __va_arg_ptr
+ *(int *)
+#endif
+ GET_VA_ARG(p,u,unsigned int,ppfs->arg);
+ }
+ if (ppfs->info.prec == INT_MIN) {
+ ppfs->info.prec =
+#ifdef __va_arg_ptr
+ *(int *)
+#endif
+ GET_VA_ARG(p,u,unsigned int,ppfs->arg);
+ }
+ i = 0;
+ while (i < ppfs->num_data_args) {
+ switch(ppfs->argtype[i++]) {
+ case (PA_INT|PA_FLAG_LONG_LONG):
+#ifdef ULLONG_MAX
+ GET_VA_ARG(p,ull,unsigned long long,ppfs->arg);
+ break;
+#endif
+ case (PA_INT|PA_FLAG_LONG):
+#if ULONG_MAX != UINT_MAX
+ GET_VA_ARG(p,ul,unsigned long,ppfs->arg);
+ break;
+#endif
+ case PA_CHAR: /* TODO - be careful */
+ /* ... users could use above and really want below!! */
+ case (PA_INT|__PA_FLAG_CHAR):/* TODO -- translate this!!! */
+ case (PA_INT|PA_FLAG_SHORT):
+ case PA_INT:
+ GET_VA_ARG(p,u,unsigned int,ppfs->arg);
+ break;
+ case PA_WCHAR: /* TODO -- assume int? */
+ /* we're assuming wchar_t is at least an int */
+ GET_VA_ARG(p,wc,wchar_t,ppfs->arg);
+ break;
+#ifndef __BCC__
+ /* PA_FLOAT */
+ case PA_DOUBLE:
+ GET_VA_ARG(p,d,double,ppfs->arg);
+ break;
+ case (PA_DOUBLE|PA_FLAG_LONG_DOUBLE):
+ GET_VA_ARG(p,ld,long double,ppfs->arg);
+ break;
+#else
+ case PA_DOUBLE:
+ case (PA_DOUBLE|PA_FLAG_LONG_DOUBLE):
+ assert(0);
+#endif
+ default:
+ /* TODO -- really need to ensure this can't happen */
+ assert(ppfs->argtype[i-1] & PA_FLAG_PTR);
+ case PA_POINTER:
+ case PA_STRING:
+ case PA_WSTRING:
+ GET_VA_ARG(p,p,void *,ppfs->arg);
+ break;
+ case __PA_NOARG:
+ continue;
+ }
+ ++p;
+ }
+ } else {
+ if (ppfs->info.width == INT_MIN) {
+ ppfs->info.width
+ = (int) GET_ARG_VALUE(p + ppfs->argnumber[0] - 1,u,unsigned int);
+ }
+ if (ppfs->info.prec == INT_MIN) {
+ ppfs->info.prec
+ = (int) GET_ARG_VALUE(p + ppfs->argnumber[1] - 1,u,unsigned int);
+ }
+ }
+
+ /* Now we know the width and precision. */
+ if (ppfs->info.width < 0) {
+ ppfs->info.width = -ppfs->info.width;
+ PRINT_INFO_SET_FLAG(&(ppfs->info),left);
+ PRINT_INFO_CLR_FLAG(&(ppfs->info),space);
+ ppfs->info.pad = ' ';
+ }
+#if 0
+ /* NOTE -- keep neg for now so float knows! */
+ if (ppfs->info.prec < 0) { /* spec says treat as omitted. */
+ /* so use default prec... 1 for everything but floats and strings. */
+ ppfs->info.prec = 1;
+ }
+#endif
+}
+#endif
+/**********************************************************************/
+#ifdef L__ppfs_parsespec
+
+/* Notes: argtype differs from glibc for the following:
+ * mine glibc
+ * lc PA_WCHAR PA_CHAR the standard says %lc means %C
+ * ls PA_WSTRING PA_STRING the standard says %ls means %S
+ * {*}n {*}|PA_FLAG_PTR PA_FLAG_PTR size of n can be qualified
+ */
+
+/* TODO: store positions of positional args */
+
+/* TODO -- WARNING -- assumes aligned on integer boundaries!!! */
+
+/* TODO -- disable if not using positional args!!! */
+#define _OVERLAPPING_DIFFERENT_ARGS
+
+/* TODO -- rethink this -- perhaps we should set to largest type??? */
+
+#ifdef _OVERLAPPING_DIFFERENT_ARGS
+
+#define PROMOTED_SIZE_OF(X) ((sizeof(X) + sizeof(int) - 1) / sizeof(X))
+
+static const short int type_codes[] = {
+ __PA_NOARG, /* must be first entry */
+ PA_POINTER,
+ PA_STRING,
+ PA_WSTRING,
+ PA_CHAR,
+ PA_INT|PA_FLAG_SHORT,
+ PA_INT,
+ PA_INT|PA_FLAG_LONG,
+ PA_INT|PA_FLAG_LONG_LONG,
+ PA_WCHAR,
+#ifndef __BCC__
+ /* PA_FLOAT, */
+ PA_DOUBLE,
+ PA_DOUBLE|PA_FLAG_LONG_DOUBLE,
+#endif
+};
+
+static const unsigned char type_sizes[] = {
+ /* unknown type consumes no arg */
+ 0, /* must be first entry */
+ PROMOTED_SIZE_OF(void *),
+ PROMOTED_SIZE_OF(char *),
+ PROMOTED_SIZE_OF(wchar_t *),
+ PROMOTED_SIZE_OF(char),
+ PROMOTED_SIZE_OF(short),
+ PROMOTED_SIZE_OF(int),
+ PROMOTED_SIZE_OF(long),
+#ifdef ULLONG_MAX
+ PROMOTED_SIZE_OF(long long),
+#else
+ PROMOTED_SIZE_OF(long), /* TODO -- is this correct? (above too) */
+#endif
+ PROMOTED_SIZE_OF(wchar_t),
+#ifndef __BCC__
+ /* PROMOTED_SIZE_OF(float), */
+ PROMOTED_SIZE_OF(double),
+ PROMOTED_SIZE_OF(long double),
+#endif
+};
+
+static int _promoted_size(int argtype)
+{
+ register const short int *p;
+
+ /* note -- since any unrecognized type is treated as a pointer */
+ p = type_codes + sizeof(type_codes)/sizeof(type_codes[0]);
+ do {
+ if (*--p == argtype) {
+ break;
+ }
+ } while (p > type_codes);
+
+ return type_sizes[(int)(p - type_codes)];
+}
+
+static int _is_equal_or_bigger_arg(int curtype, int newtype)
+{
+ /* Quick test */
+ if (newtype == __PA_NOARG) {
+ return 0;
+ }
+ if ((curtype == __PA_NOARG) || (curtype == newtype)) {
+ return 1;
+ }
+ /* Ok... slot is already filled and types are different in name. */
+ /* So, compare promoted sizes of curtype and newtype args. */
+ return _promoted_size(curtype) <= _promoted_size(newtype);
+}
+
+#else
+
+#define _is_equal_or_bigger_arg(C,N) (((C) == __PA_NOARG) || ((C) == (N)))
+
+#endif
+
+/* TODO - do this differently? */
+static char _bss_custom_printf_spec[MAX_USER_SPEC]; /* 0-init'd for us. */
+
+char *_custom_printf_spec = _bss_custom_printf_spec;
+printf_arginfo_function *_custom_printf_arginfo[MAX_USER_SPEC];
+
+extern int _ppfs_parsespec(ppfs_t *ppfs)
+{
+ register const char *fmt;
+ register const char *p;
+ int preci;
+ int width;
+ int flags;
+ int dataargtype;
+ int i;
+ int dpoint;
+ int maxposarg;
+ int p_m_spec_chars;
+ int n;
+ int argtype[MAX_ARGS_PER_SPEC+2];
+ int argnumber[3]; /* width, precision, 1st data arg */
+ unsigned int conv_num;
+ static const char spec_flags[] = SPEC_FLAGS;
+ static const char spec_chars[] = SPEC_CHARS;/* TODO: b? */
+ static const char spec_ranges[] = SPEC_RANGES;
+ static const short spec_or_mask[] = SPEC_OR_MASK;
+ static const short spec_and_mask[] = SPEC_AND_MASK;
+ static const char qual_chars[] = QUAL_CHARS;
+
+ /* WIDE note: we can test against '%' here since we don't allow */
+ /* WIDE note: other mappings of '%' in the wide char set. */
+ preci = -1;
+ width = flags = dpoint = 0;
+ argnumber[0] = 0;
+ argnumber[1] = 0;
+ argtype[0] = __PA_NOARG;
+ argtype[1] = __PA_NOARG;
+ maxposarg = ppfs->maxposarg;
+ fmt = ppfs->fmtpos;
+
+ assert(fmt[-1] == '%');
+ assert(fmt[0] != '%');
+
+ /* Process arg pos and/or flags and/or width and/or precision. */
+ width_precision:
+ p = fmt;
+ if (*fmt == '*') {
+ argtype[-dpoint] = PA_INT;
+ ++fmt;
+ }
+ i = 0;
+ while (__isdigit(*fmt)) {
+ if (i < MAX_FIELD_WIDTH) { /* Avoid overflow. */
+ i = (i * 10) + (*fmt - '0');
+ }
+ ++fmt;
+ }
+ if (p[-1] == '%') { /* Check for a position. */
+
+ /* TODO: if val not in range, then error */
+
+ if ((*fmt == '$') && (i > 0)) {/* Positional spec. */
+ ++fmt;
+ if (maxposarg == 0) {
+ return -1;
+ }
+ if ((argnumber[2] = i) > maxposarg) {
+ maxposarg = i;
+ }
+ /* Now fall through to check flags. */
+ } else {
+ if (maxposarg > 0) {
+ return -1;
+ }
+ maxposarg = 0; /* Possible redundant store, but cuts size. */
+
+ if ((fmt > p) && (*p != '0')) {
+ goto PREC_WIDTH;
+ }
+
+ fmt = p; /* Back up for possible '0's flag. */
+ /* Now fall through to check flags. */
+ }
+
+ restart_flags: /* Process flags. */
+ i = 1;
+ p = spec_flags;
+
+ do {
+ if (*fmt == *p++) {
+ ++fmt;
+ flags |= i;
+ goto restart_flags;
+ }
+ i += i; /* Better than i <<= 1 for bcc */
+ } while (*p);
+ i = 0;
+
+ /* If '+' then ignore ' ', and if '-' then ignore '0'. */
+ /* Note: Need to ignore '0' when prec is an arg with val < 0, */
+ /* but that test needs to wait until the arg is retrieved. */
+ flags &= ~((flags & (FLAG_PLUS|FLAG_MINUS)) >> 1);
+ /* Note: Ignore '0' when prec is specified < 0 too (in printf). */
+
+ if (fmt[-1] != '%') { /* If we've done anything, loop for width. */
+ goto width_precision;
+ }
+ }
+ PREC_WIDTH:
+ if (*p == '*') { /* Prec or width takes an arg. */
+ if (maxposarg) {
+ if ((*fmt++ != '$') || (i <= 0)) {
+ /* Using pos args and no $ or invalid arg number. */
+ return -1;
+ }
+ argnumber[-dpoint] = i;
+ } else if (++p != fmt) {
+ /* Not using pos args but digits followed *. */
+ return -1;
+ }
+ i = INT_MIN;
+ }
+
+ if (!dpoint) {
+ width = i;
+ if (*fmt == '.') {
+ ++fmt;
+ dpoint = -1; /* To use as default precison. */
+ goto width_precision;
+ }
+ } else {
+ preci = i;
+ }
+
+ /* Process qualifier. */
+ p = qual_chars;
+ do {
+ if (*fmt == *p) {
+ ++fmt;
+ break;
+ }
+ } while (*++p);
+ if ((p - qual_chars < 2) && (*fmt == *p)) {
+ p += ((sizeof(qual_chars)-2) / 2);
+ ++fmt;
+ }
+ dataargtype = ((int)(p[(sizeof(qual_chars)-2) / 2])) << 8;
+
+ /* Process conversion specifier. */
+ if (!*fmt) {
+ return -1;
+ }
+
+ p = spec_chars;
+
+ do {
+ if (*fmt == *p) {
+ p_m_spec_chars = p - spec_chars;
+
+ if ((p_m_spec_chars >= CONV_c)
+ && (dataargtype & PA_FLAG_LONG)) {
+ p_m_spec_chars -= 2; /* lc -> C and ls -> S */
+ }
+
+ conv_num = p_m_spec_chars;
+ p = spec_ranges-1;
+ while (p_m_spec_chars > *++p) {}
+
+ i = p - spec_ranges;
+ argtype[2] = (dataargtype | spec_or_mask[i]) & spec_and_mask[i];
+ p = spec_chars;
+ break;
+ }
+ } while(*++p);
+
+ ppfs->info.spec = *fmt;
+ ppfs->info.prec = preci;
+ ppfs->info.width = width;
+ ppfs->info.pad = ((flags & FLAG_ZERO) ? '0' : ' ');
+ ppfs->info._flags = (flags & ~FLAG_ZERO) | (dataargtype & __PA_INTMASK);
+ ppfs->num_data_args = 1;
+
+ if (!*p) {
+#ifdef __STDIO_GLIBC_CUSTOM_PRINTF
+ /* TODO -- gnu %m support build option. */
+ if (*fmt == 'm') {
+ conv_num = CONV_m;
+ ppfs->num_data_args = 0;
+ goto DONE;
+ }
+
+ /* Handle custom arg -- WARNING -- overwrites p!!! */
+ conv_num = CONV_custom0;
+ p = _custom_printf_spec;
+ do {
+ if (*p == *fmt) {
+ if ((ppfs->num_data_args
+ = ((*_custom_printf_arginfo[(int)(p-_custom_printf_spec)])
+ (&(ppfs->info), MAX_ARGS_PER_SPEC, argtype+2)))
+ > MAX_ARGS_PER_SPEC) {
+ break; /* Error -- too many args! */
+ }
+ goto DONE;
+ }
+ } while (++p < (_custom_printf_spec + MAX_USER_SPEC));
+#endif /* __STDIO_GLIBC_CUSTOM_PRINTF */
+ /* Otherwise error. */
+ return -1;
+ }
+
+#ifdef __STDIO_GLIBC_CUSTOM_PRINTF
+ DONE:
+#endif
+
+ if (maxposarg > 0) {
+ i = 0;
+ do {
+ /* Update maxposarg and check that NL_ARGMAX is not exceeded. */
+ n = ((i <= 2)
+ ? (ppfs->argnumber[i] = argnumber[i])
+ : argnumber[2] + (i-2));
+ if (n > maxposarg) {
+ if ((maxposarg = n) > NL_ARGMAX) {
+ return -1;
+ }
+ }
+ --n;
+ /* Record argtype with largest size (current, new). */
+ if (_is_equal_or_bigger_arg(ppfs->argtype[n], argtype[i])) {
+ ppfs->argtype[n] = argtype[i];
+ }
+ } while (++i < ppfs->num_data_args + 2);
+ } else {
+ ppfs->argnumber[2] = 1;
+ memcpy(ppfs->argtype, argtype + 2, ppfs->num_data_args * sizeof(int));
+ }
+
+ ppfs->maxposarg = maxposarg;
+ ppfs->fmtpos = ++fmt;
+ ppfs->conv_num = conv_num;
+
+ return ppfs->num_data_args + 2;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_register_printf_function
+
+int register_printf_function(int spec, printf_function handler,
+ printf_arginfo_function arginfo)
+{
+ register char *r;
+ register char *p;
+
+ if (spec && (arginfo != NULL)) { /* TODO -- check if spec is valid char */
+ r = NULL;
+ p = _custom_printf_spec + MAX_USER_SPEC;
+ do {
+ --p;
+ if (!*p) {
+ r = p;
+ }
+#ifdef __BCC__
+ else /* bcc generates less code with fall-through */
+#endif
+ if (*p == spec) {
+ r = p;
+ p = _custom_printf_spec;
+ }
+ } while (p > _custom_printf_spec);
+
+ if (r) {
+ if (handler) {
+ *r = spec;
+ _custom_printf_handler[(int)(r - p)] = handler;
+ _custom_printf_arginfo[(int)(r - p)] = arginfo;
+ } else {
+ *r = 0;
+ }
+ return 0;
+ }
+ /* TODO -- if asked to unregister a non-existent spec, return what? */
+ }
+ return -1;
+}
+#endif
+/**********************************************************************/
+#ifdef L__do_one_spec
+
+printf_function *_custom_printf_handler[MAX_USER_SPEC];
+
+extern void _store_inttype(void *dest, int desttype, uintmax_t val);
+extern uintmax_t _load_inttype(int desttype, const void *src, int uflag);
+extern void _charpad(FILE * __restrict stream, char padchar, size_t numpad);
+extern void output(FILE * __restrict stream, const char *s);
+
+#define output(F,S) fputs(S,F)
+
+#undef putc
+void _charpad(FILE * __restrict stream, char padchar, size_t numpad)
+{
+ /* TODO -- Use a buffer to cut down on function calls... */
+ char pad[1];
+
+ *pad = padchar;
+ while (numpad) {
+ _stdio_fwrite(pad, 1, stream);
+ --numpad;
+ }
+}
+
+/* TODO -- Dynamically allocate work space to accomodate stack-poor archs? */
+
+int _do_one_spec(FILE * __restrict stream, register ppfs_t *ppfs, int *count)
+{
+ static const char spec_base[] = SPEC_BASE;
+ static const char prefix[] = "+\0-\0 \0000x\0000X";
+ /* 0 2 4 6 9 11*/
+ enum {
+ PREFIX_PLUS = 0,
+ PREFIX_MINUS = 2,
+ PREFIX_SPACE = 4,
+ PREFIX_LWR_X = 6,
+ PREFIX_UPR_X = 9,
+ PREFIX_NONE = 11
+ };
+
+#ifdef __va_arg_ptr
+ const void * const *argptr;
+#else
+ const void * argptr[MAX_ARGS_PER_SPEC];
+#endif
+ int *argtype;
+ size_t slen;
+ int base;
+ int numpad;
+ int numfill = 0; /* TODO: fix */
+ int prefix_num = PREFIX_NONE;
+ char padchar = ' ';
+ char buf[64];
+
+#ifdef NDEBUG
+ _ppfs_parsespec(ppfs);
+#else
+ if (_ppfs_parsespec(ppfs) < 0) { /* TODO: just for debugging */
+ abort();
+ }
+#endif
+ _ppfs_setargs(ppfs);
+
+ argtype = ppfs->argtype + ppfs->argnumber[2] - 1;
+ /* Deal with the argptr vs argvalue issue. */
+#ifdef __va_arg_ptr
+ argptr = (const void * const *) ppfs->argptr;
+ if (ppfs->maxposarg > 0) { /* Using positional args... */
+ argptr += ppfs->argnumber[2] - 1;
+ }
+#else
+ /* Need to build a local copy... */
+ {
+ register argvalue_t *p = ppfs->argvalue;
+ int i;
+ if (ppfs->maxposarg > 0) { /* Using positional args... */
+ p += ppfs->argnumber[2] - 1;
+ }
+ for (i = 0 ; i < ppfs->num_data_args ; i++ ) {
+ argptr[i] = (void *) p++;
+ }
+ }
+#endif
+ {
+ register char *s;
+
+ if (ppfs->conv_num == CONV_n) {
+ _store_inttype(*(void **)*argptr,
+ ppfs->info._flags & __PA_INTMASK,
+ (intmax_t) (*count));
+ return 0;
+ }
+ if (ppfs->conv_num <= CONV_i) { /* pointer or (un)signed int */
+ base = spec_base[(int)(ppfs->conv_num - CONV_p)];
+ if (ppfs->conv_num <= CONV_u) { /* pointer or unsigned int */
+ if (ppfs->conv_num == CONV_p) { /* pointer */
+ prefix_num = PREFIX_LWR_X;
+ } else { /* unsigned int */
+ }
+ } else { /* signed int */
+ base = -base;
+ }
+ if (ppfs->info.prec < 0) { /* Ignore '0' flag if prec specified. */
+ padchar = ppfs->info.pad;
+ }
+ s = _uintmaxtostr(buf + sizeof(buf) - 1,
+ (uintmax_t)
+ _load_inttype(*argtype & __PA_INTMASK,
+ *argptr, base), base,
+ ((ppfs->conv_num == CONV_X)
+ ? __UIM_UPPER : __UIM_LOWER));
+ if (ppfs->conv_num > CONV_u) { /* signed int */
+ if (*s == '-') {
+ PRINT_INFO_SET_FLAG(&(ppfs->info),showsign);
+ ++s; /* handle '-' in the prefix string */
+ prefix_num = PREFIX_MINUS;
+ } else if (PRINT_INFO_FLAG_VAL(&(ppfs->info),showsign)) {
+ prefix_num = PREFIX_PLUS;
+ } else if (PRINT_INFO_FLAG_VAL(&(ppfs->info),space)) {
+ prefix_num = PREFIX_SPACE;
+ }
+ }
+ slen = (char *)(buf + sizeof(buf) - 1) - s;
+ numfill = ((ppfs->info.prec < 0) ? 1 : ppfs->info.prec);
+ if (PRINT_INFO_FLAG_VAL(&(ppfs->info),alt)) {
+ if (ppfs->conv_num <= CONV_x) { /* x or p */
+ prefix_num = PREFIX_LWR_X;
+ }
+ if (ppfs->conv_num == CONV_X) {
+ prefix_num = PREFIX_UPR_X;
+ }
+ if ((ppfs->conv_num == CONV_o) && (numfill < slen)) {
+ numfill = ((*s == '0') ? 1 : slen + 1);
+ }
+ }
+ if (*s == '0') {
+ if (prefix_num >= PREFIX_LWR_X) {
+ prefix_num = PREFIX_NONE;
+ }
+ if (ppfs->conv_num == CONV_p) {/* null pointer */
+ s = "(nil)";
+ slen = 5;
+ numfill = 0;
+ } else if (numfill == 0) { /* if precision 0, no output */
+ slen = 0;
+ }
+ }
+ numfill = ((numfill > slen) ? numfill - slen : 0);
+ } else if (ppfs->conv_num <= CONV_A) { /* floating point */
+ *count += _dtostr(stream,
+ (PRINT_INFO_FLAG_VAL(&(ppfs->info),is_long_double)
+ ? *(long double *) *argptr
+ : (long double) (* (double *) *argptr)),
+ &ppfs->info);
+ return 0;
+ } else if (ppfs->conv_num <= CONV_S) { /* wide char or string */
+#if 1
+ return -1; /* TODO -- wide */
+#else
+ if (ppfs->conv_num == CONV_S) { /* wide string */
+
+ } else { /* wide char */
+
+ }
+#endif
+ } else if (ppfs->conv_num <= CONV_s) { /* char or string */
+ if (ppfs->conv_num == CONV_s) { /* string */
+ s = *((char **) (*argptr));
+ if (s) {
+ SET_STRING_LEN:
+ slen = strnlen(s, ((ppfs->info.prec >= 0)
+ ? ppfs->info.prec : SIZE_MAX));
+ } else {
+ s = "(null)";
+ slen = 6;
+ }
+ } else { /* char */
+ s = (char *) buf;
+ *s = *((const char *) *argptr);
+ s[1] = 0;
+ slen = 1;
+ }
+ } else if (ppfs->conv_num == CONV_m) {
+ s = strerror(errno);
+ goto SET_STRING_LEN;
+ } else {
+ assert(ppfs->conv_num == CONV_custom0);
+
+ s = _custom_printf_spec;
+ do {
+ if (*s == ppfs->info.spec) {
+ int rv;
+ /* TODO -- check return value for sanity? */
+ rv = (*_custom_printf_handler
+ [(int)(s-_custom_printf_spec)])
+ (stream, &ppfs->info, argptr);
+ if (rv < 0) {
+ return -1;
+ }
+ *count += rv;
+ return 0;
+ }
+ } while (++s < (_custom_printf_spec + MAX_USER_SPEC));
+ assert(0);
+ return -1;
+ }
+
+ {
+ size_t t;
+
+ t = slen + numfill;
+ if (prefix_num != PREFIX_NONE) {
+ t += ((prefix_num < PREFIX_LWR_X) ? 1 : 2);
+ }
+ numpad = ((ppfs->info.width > t) ? (ppfs->info.width - t) : 0);
+ *count += t + numpad;
+ }
+ if (padchar == '0') { /* TODO: check this */
+ numfill += numpad;
+ numpad = 0;
+ }
+
+ /* Now handle the output itself. */
+ if (!PRINT_INFO_FLAG_VAL(&(ppfs->info),left)) {
+ _charpad(stream, ' ', numpad);
+ numpad = 0;
+ }
+ output(stream, prefix + prefix_num);
+ _charpad(stream, '0', numfill);
+ _outnstr(stream, s, slen);
+ _charpad(stream, ' ', numpad);
+ }
+
+ return 0;
+}
+#endif
+/**********************************************************************/
+#ifdef L_vsnprintf
+#ifdef __STDIO_BUFFERS
+int vsnprintf(char *__restrict buf, size_t size,
+ const char * __restrict format, va_list arg)
+{
+ FILE f;
+ int rv;
+
+#ifdef __STDIO_GETC_MACRO
+ f.bufgetc =
+#endif
+ f.bufrpos = f.bufwpos = f.bufstart = buf;
+
+ if (size > SIZE_MAX - (size_t) buf) {
+ size = SIZE_MAX - (size_t) buf;
+ }
+#ifdef __STDIO_PUTC_MACRO
+ f.bufputc =
+#endif
+ f.bufend = buf + size;
+
+#if 0 /* shouldn't be necessary */
+/* #ifdef __STDIO_GLIBC_CUSTOM_STREAMS */
+ f.cookie = &(f.filedes);
+ f.gcs.read = 0;
+ f.gcs.write = 0;
+ f.gcs.seek = 0;
+ f.gcs.close = 0;
+#endif
+ f.filedes = -2; /* for debugging */
+ f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING);
+
+ rv = vfprintf(&f, format, arg);
+ if (size) {
+ if (f.bufwpos == f.bufend) {
+ --f.bufwpos;
+ }
+ *f.bufwpos = 0;
+ }
+ return rv;
+}
+#else /* __STDIO_BUFFERS */
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+
+typedef struct {
+ size_t pos;
+ size_t len;
+ unsigned char *buf;
+ FILE *fp;
+} __snpf_cookie;
+
+#define COOKIE ((__snpf_cookie *) cookie)
+
+static ssize_t snpf_write(void *cookie, const char *buf, size_t bufsize)
+{
+ size_t count;
+ char *p;
+
+ /* Note: bufsize < SSIZE_MAX because of _stdio_WRITE. */
+
+ if (COOKIE->len > COOKIE->pos) {
+ count = COOKIE->len - COOKIE->pos - 1; /* Leave space for nul. */
+ if (count > bufsize) {
+ count = bufsize;
+ }
+
+ p = COOKIE->buf + COOKIE->pos;
+ while (count) {
+ *p++ = *buf++;
+ --count;
+ }
+ *p = 0;
+ }
+
+ COOKIE->pos += bufsize;
+
+ return bufsize;
+}
+
+#undef COOKIE
+
+int vsnprintf(char *__restrict buf, size_t size,
+ const char * __restrict format, va_list arg)
+{
+ FILE f;
+ __snpf_cookie cookie;
+ int rv;
+
+ cookie.buf = buf;
+ cookie.len = size;
+ cookie.pos = 0;
+ cookie.fp = &f;
+
+ f.cookie = &cookie;
+ f.gcs.write = snpf_write;
+ f.gcs.read = NULL;
+ f.gcs.seek = NULL;
+ f.gcs.close = NULL;
+
+ f.filedes = -1; /* For debugging. */
+ f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING);
+
+ rv = vfprintf(&f, format, arg);
+
+ return rv;
+}
+
+#else /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#warning skipping vsnprintf since no buffering and no custom streams!
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#endif /* __STDIO_BUFFERS */
+#endif
+/**********************************************************************/
+#ifdef L_vdprintf
+int vdprintf(int filedes, const char * __restrict format, va_list arg)
+{
+ FILE f;
+ int rv;
+#ifdef __STDIO_BUFFERS
+ char buf[64]; /* TODO: provide _optional_ buffering? */
+
+#ifdef __STDIO_GETC_MACRO
+ f.bufgetc =
+#endif
+ f.bufrpos = f.bufwpos = f.bufstart = buf;
+#ifdef __STDIO_PUTC_MACRO
+ f.bufputc =
+#endif
+ f.bufend = buf + sizeof(buf);
+#endif /* __STDIO_BUFFERS */
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ f.cookie = &(f.filedes);
+ f.gcs.read = _cs_read;
+ f.gcs.write = _cs_write;
+ f.gcs.seek = 0; /* The internal seek func handles normals. */
+ f.gcs.close = _cs_close;
+#endif
+ f.filedes = filedes;
+ f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING);
+
+ rv = vfprintf(&f, format, arg);
+
+ return fflush(&f) ? -1 : rv;
+}
+#endif
+/**********************************************************************/
+#ifdef L_vasprintf
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#warning skipping vasprintf since no buffering and no custom streams!
+#else
+
+int vasprintf(char **__restrict buf, const char * __restrict format,
+ va_list arg)
+{
+ /* TODO -- change the default implementation? */
+#ifndef __STDIO_GLIBC_CUSTOM_STREAMS
+ /* This implementation actually calls the printf machinery twice, but only
+ * only does one malloc. This can be a problem though when custom printf
+ * specs or the %m specifier are involved because the results of the
+ * second call might be different from the first. */
+
+ int rv = vsnprintf(NULL, 0, format, arg);
+
+ return (((rv >= 0) && ((*buf = malloc(++rv)) != NULL))
+ ? vsnprintf(*buf, rv, format, arg)
+ : -1);
+#else
+ FILE *f;
+ size_t size;
+ int rv;
+
+ /* TODO - do the memstream stuff inline here to avoid fclose and the openlist? */
+ if ((f = open_memstream(buf, &size)) == NULL) {
+ return -1;
+ }
+ rv = vfprintf(f, format, arg);
+ fclose(f);
+ if (rv < 0) {
+ free(*buf);
+ *buf = NULL;
+ return -1;
+ }
+ return rv;
+#endif
+}
+#endif
+#endif
+/**********************************************************************/
+#ifdef L_vprintf
+int vprintf(const char * __restrict format, va_list arg)
+{
+ return vfprintf(stdout, format, arg);
+}
+#endif
+/**********************************************************************/
+#ifdef L_vsprintf
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#warning skipping vsprintf since no buffering and no custom streams!
+#else
+
+int vsprintf(char *__restrict buf, const char * __restrict format,
+ va_list arg)
+{
+ return vsnprintf(buf, SIZE_MAX, format, arg);
+}
+
+#endif
+#endif
+/**********************************************************************/
+#ifdef L_fprintf
+int fprintf(FILE * __restrict stream, const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vfprintf(stream, format, arg);
+ va_end(arg);
+
+ return rv;
+}
+#endif
+/**********************************************************************/
+#ifdef L_snprintf
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#warning skipping snprintf since no buffering and no custom streams!
+#else
+
+int snprintf(char *__restrict buf, size_t size,
+ const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vsnprintf(buf, size, format, arg);
+ va_end(arg);
+ return rv;
+}
+
+#endif
+#endif
+/**********************************************************************/
+#ifdef L_dprintf
+int dprintf(int filedes, const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vdprintf(filedes, format, arg);
+ va_end(arg);
+
+ return rv;
+}
+#endif
+/**********************************************************************/
+#ifdef L_asprintf
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#warning skipping asprintf and __asprintf since no buffering and no custom streams!
+#else
+
+weak_alias(__asprintf,asprintf)
+
+int __asprintf(char **__restrict buf, const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vasprintf(buf, format, arg);
+ va_end(arg);
+
+ return rv;
+}
+
+#endif
+#endif
+/**********************************************************************/
+#ifdef L_printf
+int printf(const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vfprintf(stdout, format, arg);
+ va_end(arg);
+
+ return rv;
+}
+#endif
+/**********************************************************************/
+#ifdef L_sprintf
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#warning skipping sprintf since no buffering and no custom streams!
+#else
+
+int sprintf(char *__restrict buf, const char * __restrict format, ...)
+{
+ va_list arg;
+ int rv;
+
+ va_start(arg, format);
+ rv = vsnprintf(buf, SIZE_MAX, format, arg);
+ va_end(arg);
+
+ return rv;
+}
+
+#endif
+#endif
+/**********************************************************************/
+#ifdef L__dtostr
+/*
+ * Copyright (C) 2000, 2001 Manuel Novoa III
+ *
+ * Function: size_t _dtostr(FILE *fp, long double x, struct printf_info *info)
+ *
+ * This was written for uClibc to provide floating point support for
+ * the printf functions. It handles +/- infinity and nan on i386.
+ *
+ * Notes:
+ *
+ * At most MAX_DIGITS significant digits are kept. Any trailing digits
+ * are treated as 0 as they are really just the results of rounding noise
+ * anyway. If you want to do better, use an arbitary precision arithmetic
+ * package. ;-)
+ *
+ * It should also be fairly portable, as not assumptions are made about the
+ * bit-layout of doubles.
+ *
+ * It should be too difficult to convert this to handle long doubles on i386.
+ * For information, see the comments below.
+ *
+ * TODO:
+ * long double and/or float version? (note: for float can trim code some).
+ *
+ * Decrease the size. This is really much bigger than I'd like.
+ */
+
+/*****************************************************************************/
+/* Don't change anything that follows unless you know what you're doing. */
+/*****************************************************************************/
+
+/*
+ * Configuration for the scaling power table. Ignoring denormals, you
+ * should have 2**EXP_TABLE_SIZE >= LDBL_MAX_EXP >= 2**(EXP_TABLE_SIZE-1).
+ * The minimum for standard C is 6. For IEEE 8bit doubles, 9 suffices.
+ * For long doubles on i386, use 13.
+ */
+#define EXP_TABLE_SIZE 13
+
+/*
+ * Set this to the maximum number of digits you want converted.
+ * Conversion is done in blocks of DIGITS_PER_BLOCK (9 by default) digits.
+ * (20) 17 digits suffices to uniquely determine a (long) double on i386.
+ */
+#define MAX_DIGITS 20
+
+/*
+ * Set this to the smallest integer type capable of storing a pointer.
+ */
+#define INT_OR_PTR int
+
+/*
+ * This is really only used to check for infinities. The macro produces
+ * smaller code for i386 and, since this is tested before any floating point
+ * calculations, it doesn't appear to suffer from the excess precision problem
+ * caused by the FPU that strtod had. If it causes problems, call the function
+ * and compile zoicheck.c with -ffloat-store.
+ */
+#define _zero_or_inf_check(x) ( x == (x/4) )
+
+/*
+ * Fairly portable nan check. Bitwise for i386 generated larger code.
+ * If you have a better version, comment this out.
+ */
+#define isnan(x) (x != x)
+
+/*****************************************************************************/
+/* Don't change anything that follows peroid!!! ;-) */
+/*****************************************************************************/
+
+#include <float.h>
+
+/*****************************************************************************/
+
+/*
+ * Set things up for the scaling power table.
+ */
+
+#if EXP_TABLE_SIZE < 6
+#error EXP_TABLE_SIZE should be at least 6 to comply with standards
+#endif
+
+#define EXP_TABLE_MAX (1U<<(EXP_TABLE_SIZE-1))
+
+/*
+ * Only bother checking if this is too small.
+ */
+
+#if LDBL_MAX_10_EXP/2 > EXP_TABLE_MAX
+#error larger EXP_TABLE_SIZE needed
+#endif
+
+/*
+ * With 32 bit ints, we can get 9 digits per block.
+ */
+#define DIGITS_PER_BLOCK 9
+
+#if UINT_MAX >= 4294967295UL
+#define DIGIT_BLOCK_TYPE int
+#define DB_FMT "%.*d"
+#elif LONG_MAX >= 4294967295UL
+#define DIGIT_BLOCK_TYPE long
+#define DB_FMT "%.*ld"
+#else
+#error need at least 32 bit longs
+#endif
+
+/* Maximum number of calls to fnprintf to output double. */
+#define MAX_CALLS 8
+
+/*****************************************************************************/
+
+#define NUM_DIGIT_BLOCKS ((MAX_DIGITS+DIGITS_PER_BLOCK-1)/DIGITS_PER_BLOCK)
+
+/* extra space for '-', '.', 'e+###', and nul */
+#define BUF_SIZE ( 3 + NUM_DIGIT_BLOCKS * DIGITS_PER_BLOCK )
+/*****************************************************************************/
+
+static const char *fmts[] = {
+ "%0*d", "%.*s", ".", "inf", "INF", "nan", "NAN", "%*s"
+};
+
+/*****************************************************************************/
+
+size_t _dtostr(FILE * fp, long double x, struct printf_info *info)
+{
+ long double exp_table[EXP_TABLE_SIZE];
+ long double p10;
+ DIGIT_BLOCK_TYPE digit_block; /* int of at least 32 bits */
+ int i, j;
+ int round, o_exp;
+ int exp, exp_neg;
+ int width, preci;
+ char *s;
+ char *e;
+ char buf[BUF_SIZE];
+ INT_OR_PTR pc_fwi[2*MAX_CALLS];
+ INT_OR_PTR *ppc;
+ char exp_buf[8];
+ char drvr[8];
+ char *pdrvr;
+ int npc;
+ int cnt;
+ char sign_str[2];
+ char o_mode;
+ char mode;
+
+ /* check that INT_OR_PTR is sufficiently large */
+ assert( sizeof(INT_OR_PTR) == sizeof(char *) );
+
+ width = info->width;
+ preci = info->prec;
+ mode = info->spec;
+ if (mode == 'a') {
+ mode = 'g'; /* TODO -- fix */
+ }
+ if (mode == 'A') {
+ mode = 'G'; /* TODO -- fix */
+ }
+
+ if (preci < 0) {
+ preci = 6;
+ }
+
+ *sign_str = '\0';
+ if (PRINT_INFO_FLAG_VAL(info,showsign)) {
+ *sign_str = '+';
+ } else if (PRINT_INFO_FLAG_VAL(info,space)) {
+ *sign_str = ' ';
+ }
+/* *sign_str = flag[FLAG_PLUS]; */
+ *(sign_str+1) = 0;
+ if (isnan(x)) { /* nan check */
+ pdrvr = drvr + 1;
+ *pdrvr++ = 5 + (mode < 'a');
+ pc_fwi[2] = 3;
+ info->pad = ' ';
+/* flag[FLAG_0_PAD] = 0; */
+ goto EXIT_SPECIAL;
+ }
+
+ if (x == 0) { /* handle 0 now to avoid false positive */
+ exp = -1;
+ goto GENERATE_DIGITS;
+ }
+
+ if (x < 0) { /* convert negatives to positives */
+ *sign_str = '-';
+ x = -x;
+ }
+
+ if (_zero_or_inf_check(x)) { /* must be inf since zero handled above */
+ pdrvr = drvr + 1;
+ *pdrvr++ = 3 + + (mode < 'a');
+ pc_fwi[2] = 3;
+ info->pad = ' ';
+/* flag[FLAG_0_PAD] = 0; */
+ goto EXIT_SPECIAL;
+ }
+
+ /* need to build the scaling table */
+ for (i = 0, p10 = 10 ; i < EXP_TABLE_SIZE ; i++) {
+ exp_table[i] = p10;
+ p10 *= p10;
+ }
+
+ exp_neg = 0;
+ if (x < 1e8) { /* do we need to scale up or down? */
+ exp_neg = 1;
+ }
+
+ exp = DIGITS_PER_BLOCK - 1;
+
+ i = EXP_TABLE_SIZE;
+ j = EXP_TABLE_MAX;
+ while ( i-- ) { /* scale x such that 1e8 <= x < 1e9 */
+ if (exp_neg) {
+ if (x * exp_table[i] < 1e9) {
+ x *= exp_table[i];
+ exp -= j;
+ }
+ } else {
+ if (x / exp_table[i] >= 1e8) {
+ x /= exp_table[i];
+ exp += j;
+ }
+ }
+ j >>= 1;
+ }
+ if (x >= 1e9) { /* handle bad rounding case */
+ x /= 10;
+ ++exp;
+ }
+ assert(x < 1e9);
+
+ GENERATE_DIGITS:
+ s = buf + 2; /* leave space for '\0' and '0' */
+#if 1
+#define ONE_E_NINE 1000000000L
+#else
+#define ONE_E_NINE 1e9
+#endif
+ for (i = 0 ; i < NUM_DIGIT_BLOCKS ; ++i ) {
+ digit_block = (DIGIT_BLOCK_TYPE) x;
+ x = (x - digit_block) * ONE_E_NINE;
+ s += sprintf(s, DB_FMT, DIGITS_PER_BLOCK, digit_block);
+ }
+
+ /*************************************************************************/
+
+ *exp_buf = 'e';
+ if (mode < 'a') {
+ *exp_buf = 'E';
+ mode += ('a' - 'A');
+ }
+
+ o_mode = mode;
+
+ round = preci;
+
+ if ((mode == 'g') && (round > 0)){
+ --round;
+ }
+
+ if (mode == 'f') {
+ round += exp;
+ }
+
+ s = buf;
+ *s++ = 0; /* terminator for rounding and 0-triming */
+ *s = '0'; /* space to round */
+
+ i = 0;
+ e = s + MAX_DIGITS + 1;
+ if (round < MAX_DIGITS) {
+ e = s + round + 2;
+ if (*e >= '5') {
+ i = 1;
+ }
+ }
+
+ do { /* handle rounding and trim trailing 0s */
+ *--e += i; /* add the carry */
+ } while ((*e == '0') || (*e > '9'));
+
+ o_exp = exp;
+ if (e <= s) { /* we carried into extra digit */
+ ++o_exp;
+ e = s; /* needed if all 0s */
+ } else {
+ ++s;
+ }
+ *++e = 0; /* ending nul char */
+
+ if ((mode == 'g') && ((o_exp >= -4) && (o_exp <= round))) {
+ mode = 'f';
+ }
+
+ exp = o_exp;
+ if (mode != 'f') {
+ o_exp = 0;
+ }
+
+ if (o_exp < 0) {
+ *--s = '0'; /* fake the first digit */
+ }
+
+ pdrvr = drvr+1;
+ ppc = pc_fwi+2;
+
+ *pdrvr++ = 0;
+ *ppc++ = 1;
+ *ppc++ = (INT_OR_PTR)(*s++ - '0');
+
+ i = e - s; /* total digits */
+ if (o_exp >= 0) {
+ if (o_exp >= i) { /* all digit(s) left of decimal */
+ *pdrvr++ = 1;
+ *ppc++ = i;
+ *ppc++ = (INT_OR_PTR)(s);
+ o_exp -= i;
+ i = 0;
+ if (o_exp>0) { /* have 0s left of decimal */
+ *pdrvr++ = 0;
+ *ppc++ = o_exp;
+ *ppc++ = 0;
+ }
+ } else if (o_exp > 0) { /* decimal between digits */
+ *pdrvr++ = 1;
+ *ppc++ = o_exp;
+ *ppc++ = (INT_OR_PTR)(s);
+ s += o_exp;
+ i -= o_exp;
+ }
+ o_exp = -1;
+ }
+
+ if (PRINT_INFO_FLAG_VAL(info,alt)
+/* flag[FLAG_HASH] */
+ || (i) || ((o_mode != 'g') && (preci > 0))) {
+ *pdrvr++ = 2; /* need decimal */
+ *ppc++ = 1; /* needed for width calc */
+ ppc++;
+ }
+
+ if (++o_exp < 0) { /* have 0s right of decimal */
+ *pdrvr++ = 0;
+ *ppc++ = -o_exp;
+ *ppc++ = 0;
+ }
+ if (i) { /* have digit(s) right of decimal */
+ *pdrvr++ = 1;
+ *ppc++ = i;
+ *ppc++ = (INT_OR_PTR)(s);
+ }
+
+ if (o_mode != 'g') {
+ i -= o_exp;
+ if (i < preci) { /* have 0s right of digits */
+ i = preci - i;
+ *pdrvr++ = 0;
+ *ppc++ = i;
+ *ppc++ = 0;
+ }
+ }
+
+ /* build exponent string */
+ if (mode != 'f') {
+ *pdrvr++ = 1;
+ *ppc++ = sprintf(exp_buf,"%c%+.2d", *exp_buf, exp);
+ *ppc++ = (INT_OR_PTR) exp_buf;
+ }
+
+ EXIT_SPECIAL:
+ npc = pdrvr - drvr;
+ ppc = pc_fwi + 2;
+ for (i=1 ; i< npc ; i++) {
+ width -= *(ppc++);
+ ppc++;
+ }
+ i = 0;
+ if (*sign_str) {
+ i = 1;
+ }
+ width -= i;
+ if (width <= 0) {
+ width = 0;
+ } else {
+ if (PRINT_INFO_FLAG_VAL(info,left)) { /* padding on right */
+/* flag[FLAG_MINUS_LJUSTIFY] */
+ ++npc;
+ *pdrvr++ = 7;
+ *ppc = width;
+ *++ppc = (INT_OR_PTR)("");
+ width = 0;
+ } else if (info->pad == '0') { /* 0 padding */
+/* (flag[FLAG_0_PAD] == '0') */
+ pc_fwi[2] += width;
+ width = 0;
+ }
+ }
+ *drvr = 7;
+ ppc = pc_fwi;
+ *ppc++ = width + i;
+ *ppc = (INT_OR_PTR) sign_str;
+
+ pdrvr = drvr;
+ ppc = pc_fwi;
+ cnt = 0;
+ for (i=0 ; i<npc ; i++) {
+#if 1
+ fprintf(fp, fmts[(int)(*pdrvr++)], (INT_OR_PTR)(*(ppc)),
+ (INT_OR_PTR)(*(ppc+1)));
+#else
+ j = fprintf(fp, fmts[(int)(*pdrvr++)], (INT_OR_PTR)(*(ppc)),
+ (INT_OR_PTR)(*(ppc+1)));
+ assert(j == *ppc);
+#endif
+/* if (size > *ppc) { */
+/* size -= *ppc; */
+/* } */
+ cnt += *ppc; /* to avoid problems if j == -1 */
+ ppc += 2;
+ }
+
+ return cnt;
+}
+#endif
+/**********************************************************************/
+#ifdef L__store_inttype
+/* TODO -- right now, assumes intmax_t is either long or long long */
+
+/* We assume int may be short or long, but short and long are different. */
+
+void _store_inttype(register void *dest, int desttype, uintmax_t val)
+{
+ if (desttype == __PA_FLAG_CHAR) { /* assume char not int */
+ *((unsigned char *) dest) = val;
+ return;
+ }
+#if defined(LLONG_MAX) && (LONG_MAX != LLONG_MAX)
+ if (desttype == PA_FLAG_LONG_LONG) {
+ *((unsigned long long int *) dest) = val;
+ return;
+ }
+#endif /* LLONG_MAX */
+#if SHRT_MAX != INT_MAX
+ if (desttype == PA_FLAG_SHORT) {
+ *((unsigned short int *) dest) = val;
+ return;
+ }
+#endif /* SHRT_MAX */
+#if LONG_MAX != INT_MAX
+ if (desttype == PA_FLAG_LONG) {
+ *((unsigned long int *) dest) = val;
+ return;
+ }
+#endif /* LONG_MAX */
+
+ *((unsigned int *) dest) = val;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__load_inttype
+
+extern uintmax_t _load_inttype(int desttype, const void *src, int uflag)
+{
+ if (uflag >= 0) { /* unsigned */
+#if LONG_MAX != INT_MAX
+ if (desttype & (PA_FLAG_LONG|PA_FLAG_LONG_LONG)) {
+#ifdef LLONG_MAX
+ if (desttype == PA_FLAG_LONG_LONG) {
+ return *((unsigned long long int *) src);
+ }
+#endif
+ return *((unsigned long int *) src);
+ }
+#else /* LONG_MAX != INT_MAX */
+#ifdef LLONG_MAX
+ if (desttype & PA_FLAG_LONG_LONG) {
+ return *((unsigned long long int *) src);
+ }
+#endif
+#endif /* LONG_MAX != INT_MAX */
+ {
+ unsigned int x;
+ x = *((unsigned int *) src);
+ if (desttype == __PA_FLAG_CHAR) x = (unsigned char) x;
+#if SHRT_MAX != INT_MAX
+ if (desttype == PA_FLAG_SHORT) x = (unsigned short int) x;
+#endif
+ return x;
+ }
+ } else { /* signed */
+#if LONG_MAX != INT_MAX
+ if (desttype & (PA_FLAG_LONG|PA_FLAG_LONG_LONG)) {
+#ifdef LLONG_MAX
+ if (destsize == PA_FLAG_LONG_LONG) {
+ return *((long long int *) src);
+ }
+#endif
+ return *((long int *) src);
+ }
+#else /* LONG_MAX != INT_MAX */
+#ifdef LLONG_MAX
+ if (desttype & PA_FLAG_LONG_LONG) {
+ return *((long long int *) src);
+ }
+#endif
+#endif /* LONG_MAX != INT_MAX */
+ {
+ int x;
+ x = *((int *) src);
+ if (desttype == __PA_FLAG_CHAR) x = (char) x;
+#if SHRT_MAX != INT_MAX
+ if (desttype == PA_FLAG_SHORT) x = (short int) x;
+#endif
+ return x;
+ }
+ }
+}
+
+#endif
+/**********************************************************************/
--- /dev/null
+/* Copyright (C) 2002 Manuel Novoa III
+ * My stdio library for linux and (soon) elks.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
+ *
+ * This code is currently under development. Also, I plan to port
+ * it to elks which is a 16-bit environment with a fairly limited
+ * compiler. Therefore, please refrain from modifying this code
+ * and, instead, pass any bug-fixes, etc. to me. Thanks. Manuel
+ *
+ * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
+
+#define _ISOC99_SOURCE /* for ULLONG primarily... */
+#define _GNU_SOURCE
+#define _STDIO_UTILITY /* for _stdio_fdout and _uintmaxtostr. */
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <assert.h>
+#include <stdio_ext.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/**********************************************************************/
+/* First deal with some build issues... */
+
+#ifndef __STDIO_THREADSAFE
+/* Just build empty object files if any of these were defined. */
+/* Note though that we do keep the various *_unlocked names as aliases. */
+#undef L___fsetlocking
+#undef L___flockfile
+#undef L___ftrylockfile
+#undef L___funlockfile
+#endif
+
+#ifndef __STDIO_LARGE_FILES
+/* Just build empty object files if any of these were defined. */
+#undef L_fopen64
+#undef L_freopen64
+#undef L_ftello64
+#undef L_fseeko64
+#undef L_fsetpos64
+#undef L_fgetpos64
+#endif
+
+/**********************************************************************/
+
+/* TODO -- make this the default except for bcc with it's broken preproc? */
+#ifdef __UCLIBC__
+#define _stdin stdin
+#define _stdout stdout
+#define _stderr stderr
+#endif /* __UCLIBC__ */
+
+/**********************************************************************/
+
+#ifndef __STDIO_THREADSAFE
+
+#define UNLOCKED_STREAM(RETURNTYPE,NAME,PARAMS,ARGS,STREAM) \
+strong_alias(NAME,NAME##_unlocked) \
+RETURNTYPE NAME PARAMS
+
+#define UNLOCKED(RETURNTYPE,NAME,PARAMS,ARGS) \
+ UNLOCKED_STREAM(RETURNTYPE,NAME,PARAMS,ARGS,stream)
+
+#define UNLOCKED_VOID_RETURN(NAME,PARAMS,ARGS) \
+strong_alias(NAME,NAME##_unlocked) \
+void NAME PARAMS
+
+#define __STDIO_THREADLOCK_OPENLIST
+#define __STDIO_THREADUNLOCK_OPENLIST
+
+#else /* __STDIO_THREADSAFE */
+
+#include <pthread.h>
+
+#define UNLOCKED_STREAM(RETURNTYPE,NAME,PARAMS,ARGS,STREAM) \
+RETURNTYPE NAME PARAMS \
+{ \
+ RETURNTYPE retval; \
+ __STDIO_THREADLOCK(STREAM); \
+ retval = NAME##_unlocked ARGS ; \
+ __STDIO_THREADUNLOCK(STREAM); \
+ return retval; \
+} \
+RETURNTYPE NAME##_unlocked PARAMS
+
+#define UNLOCKED(RETURNTYPE,NAME,PARAMS,ARGS) \
+ UNLOCKED_STREAM(RETURNTYPE,NAME,PARAMS,ARGS,stream)
+
+#define UNLOCKED_VOID_RETURN(NAME,PARAMS,ARGS) \
+void NAME PARAMS \
+{ \
+ __STDIO_THREADLOCK(stream); \
+ NAME##_unlocked ARGS ; \
+ __STDIO_THREADUNLOCK(stream); \
+} \
+void NAME##_unlocked PARAMS
+
+#define __STDIO_THREADLOCK_OPENLIST \
+ pthread_mutex_lock(&_stdio_openlist_lock)
+
+#define __STDIO_THREADUNLOCK_OPENLIST \
+ pthread_mutex_unlock(&_stdio_openlist_lock)
+
+#define __STDIO_THREADTRYLOCK_OPENLIST \
+ pthread_mutex_trylock(&_stdio_openlist_lock)
+
+#endif /* __STDIO_THREADSAFE */
+
+/**********************************************************************/
+
+#ifdef __STDIO_WIDE
+#define __STDIO_FILE_INIT_UNGOT { 0, 0 }, { 0, 0 },
+#else
+#define __STDIO_FILE_INIT_UNGOT { 0, 0 },
+#endif
+
+#ifdef __STDIO_GETC_MACRO
+#define __STDIO_FILE_INIT_BUFGETC(x) x,
+#else
+#define __STDIO_FILE_INIT_BUFGETC(x)
+#endif
+
+#ifdef __STDIO_PUTC_MACRO
+#define __STDIO_FILE_INIT_BUFPUTC(x) x,
+#else
+#define __STDIO_FILE_INIT_BUFPUTC(x)
+#endif
+
+#if defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+#define __STDIO_FILE_INIT_NEXT(next) (next),
+#else /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+#define __STDIO_FILE_INIT_NEXT(next)
+#endif /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+
+#ifdef __STDIO_BUFFERS
+#define __STDIO_FILE_INIT_BUFFERS(buf,bufsize) \
+ (buf), (buf)+(bufsize), (buf), (buf),
+#else
+#define __STDIO_FILE_INIT_BUFFERS(buf,bufsize)
+#endif
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+#define __STDIO_FILE_INIT_CUSTOM_STREAM(stream) \
+ &((stream).filedes), { _cs_read, _cs_write, NULL, _cs_close },
+#else
+#define __STDIO_FILE_INIT_CUSTOM_STREAM(stream)
+#endif
+
+#ifdef __STDIO_THREADSAFE
+#define __STDIO_FILE_INIT_THREADSAFE \
+ 0, PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP,
+#else
+#define __STDIO_FILE_INIT_THREADSAFE
+#endif
+
+#define __STDIO_INIT_FILE_STRUCT(stream, flags, filedes, next, buf, bufsize) \
+ { (flags), \
+ __STDIO_FILE_INIT_UNGOT \
+ (filedes), \
+ __STDIO_FILE_INIT_NEXT(next) \
+ __STDIO_FILE_INIT_BUFFERS(buf,bufsize) \
+ __STDIO_FILE_INIT_BUFGETC((buf)) \
+ __STDIO_FILE_INIT_BUFPUTC((buf)) \
+ __STDIO_FILE_INIT_CUSTOM_STREAM(stream) \
+ __STDIO_FILE_INIT_THREADSAFE \
+} /* TODO: mbstate and builtin buf */
+
+#ifdef __STDIO_MBSTATE_DATA
+extern void _init_mbstate(mbstate_t *dest);
+
+#define __COMMA_CLEAN_MBSTATE , 0
+#define __COPY_MBSTATE(dest,src) memcpy(dest, src, sizeof(mbstate_t))
+#define __INIT_MBSTATE(dest) _init_mbstate(dest)
+#else
+#define __COMMA_CLEAN_MBSTATE
+#define __COPY_MBSTATE(dest,src)
+#define __INIT_MBSTATE(dest)
+#endif
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+
+/* TODO -- what does glibc do for undefined funcs? errno set? */
+#define __READ(STREAMPTR,BUF,SIZE) \
+ ((((STREAMPTR)->gcs.read) == NULL) ? -1 : \
+ (((STREAMPTR)->gcs.read)((STREAMPTR)->cookie,(BUF),(SIZE))))
+#define __WRITE(STREAMPTR,BUF,SIZE) \
+ ((((STREAMPTR)->gcs.write) == NULL) ? -1 : \
+ (((STREAMPTR)->gcs.write)((STREAMPTR)->cookie,(BUF),(SIZE))))
+#define __CLOSE(STREAMPTR) \
+ ((((STREAMPTR)->gcs.close) == NULL) ? 0 : \
+ (((STREAMPTR)->gcs.close)((STREAMPTR)->cookie)))
+
+#else /* __STDIO_GLIBC_CUSTOM_STREAMS */
+
+#define __READ(STREAMPTR,BUF,SIZE) \
+ (read((STREAMPTR)->filedes,(BUF),(SIZE)))
+#define __WRITE(STREAMPTR,BUF,SIZE) \
+ (write((STREAMPTR)->filedes,(BUF),(SIZE)))
+#define __CLOSE(STREAMPTR) \
+ (close((STREAMPTR)->filedes))
+
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+
+/**********************************************************************/
+/* POSIX functions */
+/**********************************************************************/
+#ifdef L_getw
+
+/* SUSv2 Legacy function -- need not be reentrant. */
+
+int getw (register FILE *stream)
+{
+ int aw[1];
+
+#ifdef __STDIO_WIDE
+
+ return (fread((void *)aw, sizeof(int), 1, stream) > 0) ? (*aw) : EOF;
+
+#else /* __STDIO_WIDE */
+
+ return (_stdio_fread((unsigned char *)(aw), sizeof(int), stream)
+ == sizeof(int)) ? (*aw) : EOF;
+
+#endif /* __STDIO_WIDE */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putw
+
+/* SUSv2 Legacy function -- need not be reentrant. */
+
+int putw (int w, register FILE *stream)
+{
+ int aw[1];
+
+ *aw = w; /* In case 'w' is in a register... */
+
+#ifdef __STDIO_WIDE
+
+ return (fwrite((void *)aw, sizeof(int), 1, stream) == 1) ? 0 : EOF;
+
+#else /* __STDIO_WIDE */
+
+ return (_stdio_fwrite((unsigned char *)aw, sizeof(int), stream)
+ == sizeof(int)) ? 0 : EOF;
+
+#endif /* __STDIO_WIDE */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fileno
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,fileno,(register FILE *stream),(stream))
+{
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ return ( ((stream->cookie == &(stream->filedes)) && (stream->filedes >= 0))
+ ? stream->filedes
+ : (__set_errno(EBADF), -1) );
+#else /* __STDIO_GLIBC_CUSTOM_STREAMS */
+ return (stream->filedes >= 0) ? stream->filedes : (__set_errno(EBADF), -1);
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fdopen
+
+/* No reentrancy issues. */
+
+FILE *fdopen(int filedes, const char *mode)
+{
+ register char *cur_mode; /* TODO -- replace by intptr_t?? */
+
+ return (((int)(cur_mode = (char *) fcntl(filedes, F_GETFL))) != -1)
+ ? _stdio_fopen(cur_mode, mode, NULL, filedes)
+ : NULL;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fopen64
+
+/* No reentrancy issues. */
+
+FILE *fopen64(const char * __restrict filename, const char * __restrict mode)
+{
+ return _stdio_fopen(filename, mode, NULL, -2);
+}
+
+#endif
+/**********************************************************************/
+/* BSD functions */
+/**********************************************************************/
+#ifdef L_setbuffer
+
+/* No reentrancy issues. */
+
+void setbuffer(FILE * __restrict stream, register char * __restrict buf,
+ size_t size)
+{
+#ifdef __STDIO_BUFFERS
+ setvbuf(stream, buf, (buf ? _IOFBF : _IONBF), size);
+#else /* __STDIO_BUFFERS */
+ /* Nothing to do. */
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_setlinebuf
+
+/* No reentrancy issues. */
+
+void setlinebuf(FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+ setvbuf(stream, NULL, _IOLBF, (size_t) BUFSIZ);
+#else /* __STDIO_BUFFERS */
+ /* Nothing to do. */
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+/* GLIBC functions */
+/**********************************************************************/
+#ifdef L_fcloseall
+
+/* NOTE: GLIBC difference!!! -- fcloseall
+ * According to the info pages, glibc actually fclose()s all open files.
+ * Apparently, glibc's new version only fflush()s and unbuffers all
+ * writing streams to cope with unordered destruction of c++ static
+ * objects. Here we implement the old behavior as default.
+ */
+
+/* Not reentrant. */
+
+int fcloseall (void)
+{
+#if defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+ register FILE *stream;
+ int rv;
+
+ _stdio_term(); /* Let _stdio_term() do all the work. */
+
+ rv = 0;
+ for (stream = _stdio_openlist ; stream ; stream = stream->nextopen) {
+ if (stream->modeflags & (__FLAG_WRITING|__FLAG_ERROR)) {
+ /* TODO -- is this correct? Maybe ferror set before flush...
+ * could check if pending writable but what if term unbuffers?
+ * in that case, could clear error flag... */
+ rv = EOF; /* Only care about failed writes. */
+ }
+ }
+
+ /* Make sure _stdio_term() does nothing on exit. */
+ _stdio_openlist = NULL;
+
+ return rv;
+#else /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+
+ return 0;
+
+#endif /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fmemopen
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+
+typedef struct {
+ size_t pos;
+ size_t len;
+ size_t eof;
+ int dynbuf;
+ unsigned char *buf;
+ FILE *fp;
+} __fmo_cookie;
+
+#define COOKIE ((__fmo_cookie *) cookie)
+
+static ssize_t fmo_read(void *cookie, register char *buf, size_t bufsize)
+{
+ size_t count = COOKIE->len - COOKIE->pos;
+
+ /* Note: bufsize < SSIZE_MAX because of _stdio_READ. */
+
+ if (bufsize > count) {
+ bufsize = count;
+ }
+
+#if 1 /* TODO - choose code option */
+ memcpy(buf, COOKIE->buf + COOKIE->pos, bufsize);
+ COOKIE->pos += bufsize;
+#else
+ {
+ register char *p = COOKIE->buf + COOKIE->pos;
+
+ count = bufsize;
+ while (count) {
+ *buf++ = *p++;
+ --count;
+ }
+ COOKIE->pos += bufsize;
+ }
+#endif
+
+ return bufsize;
+}
+
+static ssize_t fmo_write(void *cookie, register const char *buf, size_t bufsize)
+{
+ size_t count;
+
+ /* Note: bufsize < SSIZE_MAX because of _stdio_WRITE. */
+
+ /* If appending, need to seek to end of file!!!! */
+ if (COOKIE->fp->modeflags & __FLAG_APPEND) {
+ COOKIE->pos = COOKIE->eof;
+ }
+
+ count = COOKIE->len - COOKIE->pos;
+
+ if (bufsize > count) {
+ bufsize = count;
+ if (count == 0) { /* We're at the end of the buffer... */
+ errno = EFBIG;
+ return -1;
+ }
+ }
+
+#if 1 /* TODO - choose code option */
+ memcpy(COOKIE->buf + COOKIE->pos, buf, bufsize);
+ COOKIE->pos += bufsize;
+
+ if (COOKIE->pos > COOKIE->eof) {
+ COOKIE->eof = COOKIE->pos;
+ if (bufsize < count) { /* New eof and still room in buffer? */
+ *(COOKIE->buf + COOKIE->pos) = 0;
+ }
+ }
+
+#else
+ {
+ register char *p = COOKIE->buf + COOKIE->pos;
+ size_t i = bufsize;
+
+ while (i > 0) {
+ *p++ = *buf++;
+ --i;
+ }
+ COOKIE->pos += bufsize;
+
+ if (COOKIE->pos > COOKIE->eof) {
+ COOKIE->eof = COOKIE->pos;
+ if (bufsize < count) { /* New eof and still room in buffer? */
+ *p = 0;
+ }
+ }
+ }
+
+#endif
+
+ return bufsize;
+}
+
+/* glibc doesn't allow seeking, but it has in-buffer seeks... we don't. */
+static int fmo_seek(void *cookie, __offmax_t *pos, int whence)
+{
+ __offmax_t p = *pos;
+
+ /* Note: fseek already checks that whence is legal, so don't check here
+ * unless debugging. */
+ assert(((unsigned int) whence) <= 2);
+
+ if (whence != SEEK_SET) {
+ p += (whence == SEEK_CUR) ? COOKIE->pos : /* SEEK_END */ COOKIE->eof;
+ }
+
+ /* Note: glibc only allows seeking in the buffer. We'll actually restrict
+ * to the data. */
+ /* Check for offset < 0, offset > eof, or offset overflow... */
+ if (((uintmax_t) p) > COOKIE->eof) {
+ return -1;
+ }
+
+ COOKIE->pos = *pos = p;
+ return 0;
+}
+
+static int fmo_close(void *cookie)
+{
+ if (COOKIE->dynbuf) {
+ free(COOKIE->buf);
+ }
+ free(cookie);
+ return 0;
+}
+
+#undef COOKIE
+
+static const cookie_io_functions_t _fmo_io_funcs = {
+ fmo_read, fmo_write, fmo_seek, fmo_close
+};
+
+/* TODO: If we have buffers enabled, it might be worthwile to add a pointer
+ * to the FILE in the cookie and have read, write, and seek operate directly
+ * on the buffer itself (ie replace the FILE buffer with the cookie buffer
+ * and update FILE bufstart, etc. whenever we seek). */
+
+FILE *fmemopen(void *s, size_t len, const char *modes)
+{
+ FILE *fp;
+ __fmo_cookie *cookie;
+ size_t i;
+
+ if ((cookie = malloc(sizeof(__fmo_cookie))) != NULL) {
+ cookie->len = len;
+ cookie->eof = cookie->pos = 0; /* pos and eof adjusted below. */
+ cookie->dynbuf = 0;
+ if (((cookie->buf = s) == NULL) && (len > 0)) {
+ if ((cookie->buf = malloc(len)) == NULL) {
+ goto EXIT_cookie;
+ }
+ cookie->dynbuf = 1;
+ *cookie->buf = 0; /* If we're appending, treat as empty file. */
+ }
+
+#ifndef __BCC__
+ fp = fopencookie(cookie, modes, _fmo_io_funcs);
+#else
+ fp = fopencookie(cookie, modes, &_fmo_io_funcs);
+#endif
+ /* Note: We don't need to worry about locking fp in the thread case
+ * as the only possible access would be a close or flush with
+ * nothing currently in the FILE's write buffer. */
+
+ if (fp != NULL) {
+ cookie->fp = fp;
+ if ((fp->modeflags & __FLAG_APPEND) && (len > 0)) {
+ for (i = 0 ; i < len ; i++) {
+ if (cookie->buf[i] == 0) {
+ break;
+ }
+ }
+ cookie->eof = cookie->pos = i; /* Adjust eof and pos. */
+ }
+ return fp;
+ }
+ }
+
+ if (!s) {
+ free(cookie->buf);
+ }
+ EXIT_cookie:
+ free(cookie);
+
+ return NULL;
+}
+
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#endif
+/**********************************************************************/
+#ifdef L_open_memstream
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+
+#define COOKIE ((__oms_cookie *) cookie)
+
+typedef struct {
+ char *buf;
+ size_t len;
+ size_t pos;
+ size_t eof;
+ char **bufloc;
+ size_t *sizeloc;
+} __oms_cookie;
+
+/* Nothing to do here, as memstreams are write-only. */
+/* static ssize_t oms_read(void *cookie, char *buf, size_t bufsize) */
+/* { */
+/* } */
+
+static ssize_t oms_write(void *cookie, const char *buf, size_t bufsize)
+{
+ char *newbuf;
+ size_t count;
+
+ /* Note: we already know bufsize < SSIZE_MAX... */
+
+ count = COOKIE->len - COOKIE->pos - 1;
+ assert(COOKIE->pos < COOKIE->len); /* Always nul-terminate! */
+
+ if (bufsize > count) {
+ newbuf = realloc(COOKIE->buf, COOKIE->len + bufsize - count);
+ if (newbuf) {
+ *COOKIE->bufloc = COOKIE->buf = newbuf;
+ COOKIE->len += (bufsize - count);
+ } else {
+ bufsize = count;
+ if (count == 0) {
+ errno = EFBIG; /* TODO: check glibc errno setting... */
+ return -1;
+ }
+ }
+ }
+
+ memcpy(COOKIE->buf + COOKIE->pos, buf, bufsize);
+ COOKIE->pos += bufsize;
+
+ if (COOKIE->pos > COOKIE->eof) {
+ *COOKIE->sizeloc = COOKIE->eof = COOKIE->pos;
+ }
+
+ return bufsize;
+}
+
+static int oms_seek(void *cookie, __offmax_t *pos, int whence)
+{
+ __offmax_t p = *pos;
+ char *buf;
+ size_t leastlen;
+
+ /* Note: fseek already checks that whence is legal, so don't check here
+ * unless debugging. */
+ assert(((unsigned int) whence) <= 2);
+
+ if (whence != SEEK_SET) {
+ p += (whence == SEEK_CUR) ? COOKIE->pos : /* SEEK_END */ COOKIE->eof;
+ }
+
+ /* Note: glibc only allows seeking in the buffer. We'll actually restrict
+ * to the data. */
+ /* Check for offset < 0, offset >= too big (need nul), or overflow... */
+ if (((uintmax_t) p) >= SIZE_MAX - 1) {
+ return -1;
+ }
+
+ leastlen = ((size_t) p) + 1; /* New pos + 1 for nul if necessary. */
+
+ if (leastlen >= COOKIE->len) { /* Need to grow buffer... */
+ buf = realloc(COOKIE->buf, leastlen);
+ if (buf) {
+ *COOKIE->bufloc = COOKIE->buf = buf;
+ COOKIE->len = leastlen;
+ memset(buf + COOKIE->eof, leastlen - COOKIE->eof, 0); /* 0-fill */
+ } else {
+ /* TODO: check glibc errno setting... */
+ return -1;
+ }
+ }
+
+ *pos = COOKIE->pos = --leastlen;
+
+ if (leastlen > COOKIE->eof) {
+ memset(COOKIE->buf + COOKIE->eof, leastlen - COOKIE->eof, 0);
+ *COOKIE->sizeloc = COOKIE->eof;
+ }
+
+ return 0;
+}
+
+static int oms_close(void *cookie)
+{
+ free(cookie);
+ return 0;
+}
+
+#undef COOKIE
+
+static const cookie_io_functions_t _oms_io_funcs = {
+ NULL, oms_write, oms_seek, oms_close
+};
+
+/* TODO: If we have buffers enabled, it might be worthwile to add a pointer
+ * to the FILE in the cookie and operate directly on the buffer itself
+ * (ie replace the FILE buffer with the cookie buffer and update FILE bufstart,
+ * etc. whenever we seek). */
+
+FILE *open_memstream(char **__restrict bufloc, size_t *__restrict sizeloc)
+{
+ __oms_cookie *cookie;
+ FILE *fp;
+
+ if ((cookie = malloc(sizeof(__oms_cookie))) != NULL) {
+ if ((cookie->buf = malloc(cookie->len = BUFSIZ)) == NULL) {
+ goto EXIT_cookie;
+ }
+ *cookie->buf = 0; /* Set nul terminator for buffer. */
+ *(cookie->bufloc = bufloc) = cookie->buf;
+ *(cookie->sizeloc = sizeloc) = cookie->eof = cookie->pos = 0;
+
+#ifndef __BCC__
+ fp = fopencookie(cookie, "w", _oms_io_funcs);
+#else
+ fp = fopencookie(cookie, "w", &_oms_io_funcs);
+#endif
+ /* Note: We don't need to worry about locking fp in the thread case
+ * as the only possible access would be a close or flush with
+ * nothing currently in the FILE's write buffer. */
+
+ if (fp != NULL) {
+ return fp;
+ }
+ }
+
+ if (cookie->buf != NULL) {
+ free(cookie->buf);
+ }
+ EXIT_cookie:
+ free(cookie);
+
+ return NULL;
+}
+
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#endif
+/**********************************************************************/
+#ifdef L_fopencookie
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+
+/* NOTE: GLIBC difference!!! -- fopencookie
+ * According to the info pages, glibc allows seeking within buffers even if
+ * no seek function is supplied. We don't. */
+
+/* NOTE: GLIBC difference!!! -- fopencookie
+ * When compiled without large file support, the offset pointer for the
+ * cookie_seek function is off_t * and not off64_t * as for glibc. */
+
+/* TODO: rewrite _stdio_fopen() to avoid the fopencookie() kludge. */
+
+/* Currently no real reentrancy issues other than a possible double close(). */
+
+#ifndef __BCC__
+
+FILE *fopencookie (void * __restrict cookie, const char * __restrict mode,
+ cookie_io_functions_t io_functions)
+{
+ FILE *stream;
+ int fd;
+
+ if ((stream = _stdio_fopen("/dev/null", mode, NULL, -1)) != NULL) {
+ fd = stream->filedes;
+ stream->filedes = -1;
+ close(fd);
+ stream->gcs = io_functions;
+ stream->cookie = cookie;
+ }
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_THREADSAFE)
+ /* I we don't have buffers or threads, we only need to worry about
+ * custom streams on the open list, as no flushing is necessary and
+ * no locking of possible underlying normal streams need be done.
+ * We do need to explicitly close custom streams on termination of stdio,
+ * and we need to lock the list as it can be modified by fclose(). */
+ __STDIO_THREADLOCK_OPENLIST;
+ stream->nextopen = _stdio_openlist; /* New files are inserted at */
+ _stdio_openlist = stream; /* the head of the list. */
+ __STDIO_THREADUNLOCK_OPENLIST;
+#endif /* !defined(__STDIO_BUFFERS) && !defined(__STDIO_THREADSAFE) */
+
+ return stream;
+}
+
+#else /* __BCC__ */
+
+/* NOTE: GLIBC difference!!! -- fopencookie (bcc only)
+ * Since bcc doesn't support passing of structs, we define fopencookie as a
+ * macro in terms of _fopencookie which takes a struct * for the io functions
+ * instead.
+ */
+
+FILE *_fopencookie (void * __restrict cookie, const char * __restrict mode,
+ cookie_io_functions_t *io_functions)
+{
+ FILE *stream;
+
+ if ((stream = _stdio_fopen("/dev/null", mode, NULL, -1)) != NULL) {
+ int fd = stream->filedes;
+ stream->filedes = -1;
+ close(fd);
+ stream->gcs.read = io_functions->read;
+ stream->gcs.write = io_functions->write;
+ stream->gcs.seek = io_functions->seek;
+ stream->gcs.close = io_functions->close;
+ stream->cookie = cookie;
+ }
+
+#if !defined(__STDIO_BUFFERS) && !defined(__STDIO_THREADSAFE)
+ /* I we don't have buffers or threads, we only need to worry about
+ * custom streams on the open list, as no flushing is necessary and
+ * no locking of possible underlying normal streams need be done.
+ * We do need to explicitly close custom streams on termination of stdio,
+ * and we need to lock the list as it can be modified by fclose(). */
+ __STDIO_THREADLOCK_OPENLIST;
+ stream->nextopen = _stdio_openlist; /* New files are inserted at */
+ _stdio_openlist = stream; /* the head of the list. */
+ __STDIO_THREADUNLOCK_OPENLIST;
+#endif /* !defined(__STDIO_BUFFERS) && !defined(__STDIO_THREADSAFE) */
+
+ return stream;
+}
+
+#endif /* __BCC__ */
+
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#endif
+/**********************************************************************/
+#ifdef L___fbufsize
+
+/* Not reentrant. */
+
+size_t __fbufsize(register FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+ return (stream->modeflags & __FLAG_NBF)
+ ? 0 : (stream->bufend - stream->bufstart);
+#else /* __STDIO_BUFFERS */
+ return 0;
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___freading
+
+/* No reentrancy issues. */
+
+int __freading(FILE * __restrict stream)
+{
+ return stream->modeflags & (__FLAG_READING|__FLAG_READONLY);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___fwriting
+
+/* No reentrancy issues. */
+
+int __fwriting(FILE * __restrict stream)
+{
+ return stream->modeflags & (__FLAG_WRITING|__FLAG_WRITEONLY);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___freadable
+
+/* No reentrancy issues. */
+
+int __freadable(FILE * __restrict stream)
+{
+ return ~(stream->modeflags & __FLAG_WRITEONLY);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___fwritable
+
+/* No reentrancy issues. */
+
+int __fwritable(FILE * __restrict stream)
+{
+ return ~(stream->modeflags & __FLAG_READONLY);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___flbf
+
+/* No reentrancy issues. */
+
+int __flbf(FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+ return (stream->modeflags & __FLAG_LBF);
+#else /* __STDIO_BUFFERS */
+ /* TODO -- Even though there is no buffer, return flag setting? */
+ return __FLAG_NBF;
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___fpurge
+
+/* Not reentrant. */
+
+void __fpurge(register FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc = /* Must disable putc. */
+#endif /* __STDIO_PUTC_MACRO */
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc = /* Must disable getc. */
+#endif
+ stream->bufwpos = stream->bufrpos = stream->bufstart; /* Reset pointers. */
+#endif /* __STDIO_BUFFERS */
+ /* Reset r/w flags and clear ungots. */
+ stream->modeflags &= ~(__FLAG_READING|__FLAG_WRITING|__MASK_UNGOT);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___fpending
+
+/* Not reentrant. */
+
+#ifdef __STDIO_WIDE
+#warning TODO -- implement __fpending for wide streams! */
+#else /* __STDIO_WIDE */
+size_t __fpending(register FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+ /* TODO -- should we check this? should we set errno? just assert? */
+ return (stream->modeflags & (__FLAG_READING|__FLAG_READONLY))
+ ? 0 : (stream->bufwpos - stream->bufstart);
+#else /* __STDIO_BUFFERS */
+ return 0;
+#endif /* __STDIO_BUFFERS */
+}
+#endif /* __STDIO_WIDE */
+
+#endif
+/**********************************************************************/
+#ifdef L__flushlbf
+
+/* No reentrancy issues. */
+
+void _flushlbf(void)
+{
+#ifdef __STDIO_BUFFERS
+ fflush((FILE *) &_stdio_openlist); /* Uses an implementation hack!!! */
+#else /* __STDIO_BUFFERS */
+ /* Nothing to do. */
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___fsetlocking
+
+/* No (serious) reentrancy issues -- return value could be incorrect. */
+/* TODO -- fix race */
+
+int __fsetlocking(FILE *stream, int locking_mode)
+{
+ int old_mode;
+
+ assert((FSETLOCKING_QUERY == 0) && (FSETLOCKING_INTERNAL == 1)
+ && (FSETLOCKING_BYCALLER == 2));
+
+ assert(((unsigned int) locking_mode) <= 2);
+
+ /* Note: don't even bother locking here... */
+
+ old_mode = stream->user_locking;
+
+ if (locking_mode != FSETLOCKING_QUERY) {
+ /* In case we're not debugging, treat any unknown as a request to
+ * set internal locking, in order to match glibc behavior. */
+ stream->user_locking = ((locking_mode == FSETLOCKING_BYCALLER)
+ ? FSETLOCKING_BYCALLER
+ : FSETLOCKING_INTERNAL);
+ }
+
+ return old_mode;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_flockfile
+
+void flockfile(FILE *stream)
+{
+ pthread_mutex_lock(&stream->lock);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_ftrylockfile
+
+int ftrylockfile(FILE *stream)
+{
+ return pthread_mutex_trylock(&stream->lock);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_funlockfile
+
+void funlockfile(FILE *stream)
+{
+ pthread_mutex_unlock(&stream->lock);
+}
+
+#endif
+/**********************************************************************/
+/* my extension functions */
+/**********************************************************************/
+#ifdef L__stdio_fsfopen
+/*
+ * Stack|Static File open -- open a file where the FILE is either
+ * stack or staticly allocated.
+ */
+
+/* No reentrancy issues. */
+
+FILE *_stdio_fsfopen(const char * __restrict filename,
+ const char * __restrict mode,
+ register FILE * __restrict stream)
+{
+#ifdef __STDIO_BUFFERS
+ stream->modeflags = __FLAG_FBF;
+#if __STDIO_BUILTIN_BUF_SIZE > 0
+ stream->bufstart = stream->builtinbuf;
+ stream->bufend = stream->builtinbuf + sizeof(stream->builtinbuf);
+#else /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+ stream->bufend = stream->bufstart = NULL;
+#endif /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+#endif /* __STDIO_BUFFERS */
+
+ return _stdio_fopen(filename, mode, stream, -1);
+}
+#endif
+/**********************************************************************/
+/* stdio internal functions */
+/**********************************************************************/
+#ifdef L__stdio_adjpos
+/*
+ * ANSI/ISO p. 370: The file positioning indicator is unspecified after
+ * a successful call to ungetwc.
+ * Note however, that this applies only to _user_ calls to ungetwc. We
+ * need to allow for internal calls by scanf. So we store the byte count
+ * of the first ungot wide char in ungot0_bytes. If it is 0 (user case)
+ * then the file position is treated as unknown.
+ */
+
+
+/* Internal function -- not reentrant. */
+
+int _stdio_adjpos(register FILE * __restrict stream,
+ register __offmax_t *pos)
+{
+ __offmax_t r;
+ int cor = stream->modeflags & __MASK_UNGOT; /* handle ungots */
+
+#ifdef __STDIO_WIDE
+ /* Assumed narrow stream so correct if wide. */
+ if (cor && (stream->modeflags & __FLAG_WIDE)) {
+ cor = cor - 1 + stream->ungot_width[0];
+ if ((stream->ungot_width[0] == 0) /* don't know byte count or */
+ || ((stream->modeflags & __MASK_UNGOT) > 1)) { /* app case */
+ return -1;
+ }
+ }
+#endif /* __STDIO_WIDE */
+#ifdef __STDIO_BUFFERS
+ if (stream->modeflags & __FLAG_WRITING) {
+ cor -= (stream->bufwpos - stream->bufstart); /* pending writes */
+ }
+ if (stream->modeflags & __FLAG_READING) {
+ cor += (stream->bufwpos - stream->bufrpos); /* extra's read */
+ }
+#endif /* __STDIO_BUFFERS */
+
+ r = *pos;
+ return ((*pos -= cor) > r) ? -cor : cor;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__stdio_lseek
+/*
+ * This function is only called by fseek and ftell.
+ * fseek -- doesn't care about pos val, just success or failure.
+ * ftell -- needs pos val but offset == 0 and whence == SET_CUR.
+ */
+
+/* Internal function -- not reentrant. */
+
+int _stdio_lseek(FILE *stream, __offmax_t *pos, int whence)
+{
+ __offmax_t res;
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ if (stream->cookie != &stream->filedes) {
+ return (((stream->gcs.seek == NULL)
+ || ((stream->gcs.seek)(stream->cookie, pos, whence) < 0))
+ ? -1 : 0);
+ }
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+#ifdef __STDIO_LARGE_FILES
+ res = lseek64(stream->filedes, *pos, whence);
+#else
+ res = lseek(stream->filedes, *pos, whence);
+#endif /* __STDIO_LARGE_FILES */
+ return (res >= 0) ? ((*pos = res), 0) : -1;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__stdio_fread
+/*
+ * NOTE!!! This routine is meant to be callable by both narrow and wide
+ * functions. However, if called by a wide function, there must be
+ * NO pending ungetwc()s!!!
+ */
+
+/* Unlike write, it's ok for read to return fewer than bufsize, since
+ * we may not need all of them. */
+static ssize_t _stdio_READ(FILE *stream, void *buf, size_t bufsize)
+{
+ ssize_t rv;
+
+ if (bufsize == 0) {
+ return 0;
+ }
+
+ if (bufsize > SSIZE_MAX) {
+ bufsize = SSIZE_MAX;
+ }
+
+#ifdef __BCC__
+ TRY_READ:
+#endif
+ rv = __READ(stream, buf, bufsize);
+ if (rv > 0) {
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ assert(rv <= bufsize); /* buggy user handler... TODO: check? */
+ if (rv > bufsize) { /* Num reported written > number requested */
+ rv = bufsize; /* Treat as a full read??? */
+ }
+#endif
+ } else if (rv == 0) {
+ stream->modeflags |= __FLAG_EOF;
+ } else {
+#ifdef __BCC__
+ if (errno == EINTR) {
+ goto TRY_READ;
+ }
+#endif
+ stream->modeflags |= __FLAG_ERROR;
+ rv = 0;
+ }
+
+ return rv;
+}
+
+/* Internal function -- not reentrant. */
+
+size_t _stdio_fread(unsigned char *buffer, size_t bytes,
+ register FILE *stream)
+{
+ __stdio_validate_FILE(stream); /* debugging only */
+
+#ifdef __STDIO_BUFFERS
+
+ if (stream->modeflags
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ & (__FLAG_WRITEONLY)
+#else /* __STDIO_AUTO_RW_TRANSITION */
+ /* ANSI/ISO and SUSv3 require not currently writing. */
+ & (__FLAG_WRITEONLY|__FLAG_WRITING)
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+ ) {
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc = stream->bufstart; /* Must disable putc. */
+#endif /* __STDIO_PUTC_MACRO */
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO: This is for posix behavior if writeonly. To save space, we
+ * use this errno for read attempt while writing, as no errno is
+ * specified by posix for this case, even though the restriction is
+ * mentioned in fopen(). */
+ errno = EBADF;
+ return 0;
+ }
+
+ /* We need to disable putc and getc macros in case of error */
+#if defined(__STDIO_PUTC_MACRO) || defined(__STDIO_GETC_MACRO)
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc =
+#endif /* __STDIO_GETC_MACRO */
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc =
+#endif /* __STDIO_GETC_MACRO */
+ stream->bufstart;
+#endif /* defined(__STDIO_PUTC_MACRO) || defined(__STDIO_GETC_MACRO) */
+
+ if (stream->modeflags & __MASK_BUFMODE) {
+ /* If the stream is readable and not fully buffered, we must first
+ * flush all line buffered output streams. Do this before the
+ * error check as this may be a read/write line-buffered stream. */
+ fflush((FILE *) &_stdio_openlist); /* Uses an implementation hack!!! */
+ }
+
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ if (stream->modeflags & __FLAG_WRITING) {
+ /* TODO -- return if error? Test glibc behavior with a custom r/w. */
+ fflush(stream);
+ }
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+
+ stream->modeflags |= __FLAG_READING; /* Make sure Reading flag is set. */
+
+ {
+ register unsigned char *p = (unsigned char *) buffer;
+
+ /* First, grab appropriate ungetc() chars. NOT FOR WIDE ORIENTATED! */
+ while (bytes && (stream->modeflags & __MASK_UNGOT)) {
+#ifdef __STDIO_WIDE
+ assert(stream->modeflags & __FLAG_NARROW);
+#endif /* __STDIO_WIDE */
+ *p++ = stream->ungot[(--stream->modeflags) & __MASK_UNGOT];
+ stream->ungot[1] = 0;
+ --bytes;
+ }
+
+ /* Now get any other needed chars from the buffer or the file. */
+ FROM_BUF:
+ while (bytes && (stream->bufrpos < stream->bufwpos)) {
+ --bytes;
+ *p++ = *stream->bufrpos++;
+ }
+
+ if (bytes > 0) {
+ ssize_t len;
+
+ /* The buffer is exhausted, but we still need chars. */
+ stream->bufrpos = stream->bufwpos = stream->bufstart;
+
+ if (bytes <= stream->bufend - stream->bufwpos) {
+ /* We have sufficient space in the buffer. */
+ len = _stdio_READ(stream, stream->bufwpos,
+ stream->bufend - stream->bufwpos);
+ if (len > 0) {
+ stream->bufwpos += len;
+ goto FROM_BUF;
+ }
+ } else {
+ /* More bytes needed than fit in the buffer, so read */
+ /* directly into caller's buffer. */
+ len = _stdio_READ(stream, p, bytes);
+ if (len > 0) {
+ p += len;
+ bytes -= len;
+ goto FROM_BUF; /* Redundant work, but stops extra read. */
+ }
+ }
+ }
+
+#ifdef __STDIO_GETC_MACRO
+ if (!(stream->modeflags & (__FLAG_WIDE|__MASK_UNGOT|__MASK_BUFMODE))) {
+ stream->bufgetc = stream->bufwpos; /* Enable getc macro. */
+ }
+#endif
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ return (p - (unsigned char *)buffer);
+ }
+
+#else /* __STDIO_BUFFERS --------------------------------------- */
+
+ if (stream->modeflags
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ & (__FLAG_WRITEONLY)
+#else /* __STDIO_AUTO_RW_TRANSITION */
+ /* ANSI/ISO and SUSv3 require not currently writing. */
+ & (__FLAG_WRITEONLY|__FLAG_WRITING)
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+ ) {
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO: This is for posix behavior if writeonly. To save space, we
+ * use this errno for read attempt while writing, as no errno is
+ * specified by posix for this case, even though the restriction is
+ * mentioned in fopen(). */
+ errno = EBADF;
+ return 0;
+ }
+
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ stream->modeflags &= ~(__FLAG_WRITING); /* Make sure Writing flag clear. */
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+
+ stream->modeflags |= __FLAG_READING; /* Make sure Reading flag is set. */
+
+ {
+ register unsigned char *p = (unsigned char *) buffer;
+
+ /* First, grab appropriate ungetc() chars. NOT FOR WIDE ORIENTATED! */
+ while (bytes && (stream->modeflags & __MASK_UNGOT)) {
+#ifdef __STDIO_WIDE
+ assert(stream->modeflags & __FLAG_NARROW);
+#endif /* __STDIO_WIDE */
+ *p++ = stream->ungot[(--stream->modeflags) & __MASK_UNGOT];
+ stream->ungot[1] = 0;
+ --bytes;
+ }
+
+ while (bytes > 0) {
+ ssize_t len = _stdio_READ(stream, p, (unsigned) bytes);
+ if (len == 0) {
+ break;
+ }
+ p += len;
+ bytes -= len;
+ }
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ return (p - (unsigned char *)buffer);
+ }
+
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__stdio_fwrite
+/*
+ * If buffer == NULL, attempt to fflush and return number of chars
+ * remaining in buffer (0 if successful fflush).
+ */
+
+/* WARNING!!!! Current standards say that termination due to an asyncronous
+ * signal may not result in stdio streams being flushed. This libary makes
+ * an effort to do so but there is no way, short of blocking signals for
+ * each _stdio_fwrite call, that we can maintain the correct state if a
+ * signal is recieved mid-call. So any stream in mid-_stdio_fwrite could
+ * not some flush data or even duplicate-flush some data. It is possible
+ * to avoid the duplicate-flush case by setting/clearing the stream
+ * error flag before/after the write process, but it doesn't seem worth
+ * the trouble. */
+
+/* Like standard write, but always does a full write unless error plus
+ *deals correctly with bufsize > SSIZE_MAX... not much on an issue on linux
+ * but definitly could be on Elks. Also on Elks, always loops for EINTR..
+ * Returns number of bytes written, so a short write indicates an error */
+static size_t _stdio_WRITE(FILE *stream, const void *buf, size_t bufsize)
+{
+ size_t todo;
+ ssize_t rv, stodo;
+
+ todo = bufsize;
+
+ while (todo) {
+ stodo = (todo <= SSIZE_MAX) ? todo : SSIZE_MAX;
+ rv = __WRITE(stream, buf, stodo);
+ if (rv >= 0) {
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ assert(rv <= stodo); /* buggy user handler... TODO: check? */
+ if (rv > stodo) { /* Num reported written > number requested */
+ rv = stodo; /* Treat as a full write??? */
+ }
+#endif
+ todo -= rv;
+ buf += rv;
+ } else
+#ifdef __BCC__
+ if (errno != EINTR)
+#endif
+ {
+ stream->modeflags |= __FLAG_ERROR;
+ break;
+ }
+ }
+
+ return bufsize - todo;
+}
+
+/* Internal function -- not reentrant. */
+
+size_t _stdio_fwrite(const unsigned char *buffer, size_t bytes,
+ register FILE *stream)
+{
+#ifdef __STDIO_BUFFERS
+ register const unsigned char *p;
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ if ((stream->modeflags & __FLAG_READONLY)
+#ifndef __STDIO_AUTO_RW_TRANSITION
+ /* ANSI/ISO requires either at EOF or currently not reading. */
+ || ((stream->modeflags & (__FLAG_READING|__FLAG_EOF))
+ == __FLAG_READING)
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+ ) {
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO: This is for posix behavior if readonly. To save space, we
+ * use this errno for write attempt while reading, as no errno is
+ * specified by posix for this case, even though the restriction is
+ * mentioned in fopen(). */
+ errno = EBADF;
+ return 0;
+ }
+
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ /* If we were reading, deal with ungots and buffered chars. */
+ if ((stream->modeflags & (__FLAG_EOF|__FLAG_WRITING|__FLAG_WRITEONLY))
+ == 0) {
+ /* If appending, we might as well seek to end to save a seek. */
+ fseek(stream, 0L,
+ ((stream->modeflags & __FLAG_APPEND) ? SEEK_END : SEEK_CUR));
+ /* TODO: set EOF in fseek when appropriate? */
+ }
+#endif
+
+ /* We need to disable putc and getc macros in case of error */
+#if defined(__STDIO_AUTO_RW_TRANSITION) \
+ || defined(__STDIO_PUTC_MACRO) || defined(__STDIO_GETC_MACRO)
+#ifdef __STDIO_AUTO_RW_TRANSITION
+ stream->bufrpos = /* TODO -- necessary? */
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc =
+#endif /* __STDIO_GETC_MACRO */
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc =
+#endif /* __STDIO_GETC_MACRO */
+ stream->bufstart;
+#endif /* not using ansi restrictions ; or using putc and/or getc macro */
+
+ /* Clear both reading and writing flags. We need to clear the writing
+ * flag in case we're fflush()ing or in case of an error. */
+ stream->modeflags &= ~(__FLAG_READING|__FLAG_WRITING);
+
+ {
+ const unsigned char *buf0 = buffer;
+
+ if (!buffer) { /* fflush the stream */
+ FFLUSH:
+ {
+ size_t count = stream->bufwpos - stream->bufstart;
+ p = stream->bufstart;
+
+ if (stream->filedes == -2) { /* TODO -- document this hack! */
+ stream->modeflags |= __FLAG_WRITING;
+ return (!buffer) ? 0 : ((buffer - buf0) + bytes);
+ }
+
+ {
+ size_t rv = _stdio_WRITE(stream, p, count);
+ p += rv;
+ count -= rv;
+ }
+
+ stream->bufwpos = stream->bufstart;
+ while (count) {
+ *stream->bufwpos++ = *p++;
+ --count;
+ }
+
+ if (!buffer) { /* fflush case... */
+ __stdio_validate_FILE(stream); /* debugging only */
+ return stream->bufwpos - stream->bufstart;
+ }
+ }
+ }
+
+#if 1
+ /* TODO: If the stream is buffered, we may be able to omit. */
+ if ((stream->bufwpos == stream->bufstart) /* buf empty */
+ && (stream->bufend - stream->bufstart <= bytes) /* fills */
+ && (stream->filedes != -2)) { /* not strinf fake file */
+ /* so want to do a direct write of supplied buffer */
+ {
+ size_t rv = _stdio_WRITE(stream, buffer, bytes);
+ buffer += rv;
+ bytes -= rv;
+ }
+ } else
+#endif
+ /* otherwise buffer not empty and/or data fits */
+ {
+ size_t count = stream->bufend - stream->bufwpos;
+ p = buffer;
+
+ if (count > bytes) {
+ count = bytes;
+ }
+ bytes -= count;
+
+ while (count) {
+ *stream->bufwpos++ = *buffer++;
+ --count;
+ }
+
+ if (bytes) {
+ goto FFLUSH;
+ }
+
+ if (stream->modeflags & __FLAG_LBF) {
+ while (p < buffer) { /* check for newline. */
+ if (*p++ == '\n') {
+ goto FFLUSH;
+ }
+ }
+ }
+ }
+
+#ifdef __STDIO_PUTC_MACRO
+ if (!(stream->modeflags & (__FLAG_WIDE|__MASK_BUFMODE))) {
+ /* Not wide, no errors and fully buffered, so enable putc macro. */
+ stream->bufputc = stream->bufend;
+ }
+#endif /* __STDIO_GETC_MACRO */
+ stream->modeflags |= __FLAG_WRITING; /* Ensure Writing flag is set. */
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ return buffer - buf0;
+
+ }
+
+#else /* __STDIO_BUFFERS --------------------------------------- */
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ if ((stream->modeflags & __FLAG_READONLY)
+#ifndef __STDIO_AUTO_RW_TRANSITION
+ /* ANSI/ISO requires either at EOF or currently not reading. */
+ || ((stream->modeflags & (__FLAG_READING|__FLAG_EOF))
+ == __FLAG_READING)
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+ ) {
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO: This is for posix behavior if readonly. To save space, we
+ * use this errno for write attempt while reading, as no errno is
+ * specified by posix for this case, even though the restriction is
+ * mentioned in fopen(). */
+ errno = EBADF;
+ return 0;
+ }
+
+ /* We always clear the reading flag in case at EOF. */
+ stream->modeflags &= ~(__FLAG_READING);
+ /* Unlike the buffered case, we set the writing flag now since we don't
+ * need to do anything here for fflush(). */
+ stream->modeflags |= __FLAG_WRITING;
+
+ {
+ register unsigned char *p = (unsigned char *) buffer;
+
+ ssize_t rv = _stdio_WRITE(stream, p, bytes);
+
+ p += rv;
+ bytes -= rv;
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ return (p - (unsigned char *)buffer);
+ }
+
+#endif /* __STDIO_BUFFERS *****************************************/
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__stdio_init
+
+/* Internal functions -- _stdio_init() and __stdio_validate_FILE
+ * are not reentrant, but _stdio_term() is through fflush().
+ * Also, the _cs_{read|write|close} functions are not reentrant. */
+
+#ifndef NDEBUG
+void __stdio_validate_FILE(FILE *stream)
+{
+ if (stream->filedes == -2) { /* fake FILE for sprintf, scanf, etc. */
+ return;
+ }
+
+ __STDIO_THREADLOCK(stream);
+
+#ifdef __STDIO_BUFFERS
+ assert(stream->bufstart <= stream->bufrpos);
+ assert(stream->bufrpos <= stream->bufwpos);
+ assert(stream->bufwpos <= stream->bufend);
+ assert(stream->bufwpos <= stream->bufend);
+ if ((stream->modeflags & __MASK_BUFMODE) == __FLAG_NBF) {
+ assert(stream->bufstart == stream->bufend);
+ }
+ assert((stream->modeflags & __MASK_BUFMODE) <= __FLAG_NBF);
+#endif
+#ifdef __STDIO_PUTC_MACRO
+ assert(stream->bufstart <= stream->bufputc);
+ assert(stream->bufputc <= stream->bufend);
+ if (stream->bufstart < stream->bufputc) {
+ assert(stream->bufputc == stream->bufend);
+ assert(stream->modeflags & (__FLAG_WRITING));
+ assert(!(stream->modeflags
+ & (__FLAG_WIDE|__MASK_BUFMODE|__MASK_UNGOT|__FLAG_READONLY))
+ );
+ }
+#endif
+#ifdef __STDIO_GETC_MACRO
+ assert(stream->bufstart <= stream->bufgetc);
+ assert(stream->bufgetc <= stream->bufwpos);
+ if (stream->bufstart < stream->bufgetc) {
+ assert(stream->modeflags & (__FLAG_READING));
+ assert(!(stream->modeflags
+ & (__FLAG_WIDE|__MASK_BUFMODE|__MASK_UNGOT|__FLAG_WRITEONLY))
+ );
+ }
+#endif
+ assert((stream->modeflags & __MASK_UNGOT) != __MASK_UNGOT);
+ if (stream->modeflags & __MASK_UNGOT1) {
+ assert(stream->ungot[1] <= 1);
+ }
+ if (stream->modeflags & __MASK_UNGOT) {
+ assert(!(stream->modeflags & __FLAG_EOF));
+ }
+ assert((stream->modeflags & (__FLAG_READONLY|__FLAG_WRITEONLY))
+ != (__FLAG_READONLY|__FLAG_WRITEONLY));
+
+ /* TODO -- filepos? ungot_width? filedes? nextopen? */
+
+ __STDIO_THREADUNLOCK(stream);
+}
+#endif
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ssize_t _cs_read(void *cookie, char *buf, size_t bufsize)
+{
+ return read(*((int *) cookie), buf, bufsize);
+}
+
+ssize_t _cs_write(void *cookie, const char *buf, size_t bufsize)
+{
+ return write(*((int *) cookie), (char *) buf, bufsize);
+}
+
+int _cs_close(void *cookie)
+{
+ return close(*((int *) cookie));
+}
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+
+#ifdef __STDIO_BUFFERS
+static unsigned char _fixed_buffers[2 * BUFSIZ];
+#define bufin (_fixed_buffers)
+#define bufout (_fixed_buffers + BUFSIZ)
+#endif /* __STDIO_BUFFERS */
+
+static FILE _stdio_streams[] = {
+ __STDIO_INIT_FILE_STRUCT(_stdio_streams[0], __FLAG_LBF|__FLAG_READONLY, \
+ 0, _stdio_streams + 1, bufin, BUFSIZ ),
+ __STDIO_INIT_FILE_STRUCT(_stdio_streams[1], __FLAG_LBF|__FLAG_WRITEONLY, \
+ 1, _stdio_streams + 2, bufout, BUFSIZ ),
+ __STDIO_INIT_FILE_STRUCT(_stdio_streams[2], __FLAG_NBF|__FLAG_WRITEONLY, \
+ 2, 0, 0, 0 )
+};
+
+FILE *_stdin = _stdio_streams + 0;
+FILE *_stdout = _stdio_streams + 1;
+FILE *_stderr = _stdio_streams + 2;
+
+#if defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+
+#ifdef __STDIO_BUFFERS
+FILE *_stdio_openlist = _stdio_streams;
+#else /* __STDIO_BUFFERS */
+FILE *_stdio_openlist = NULL;
+#endif /* __STDIO_BUFFERS */
+
+#ifdef __STDIO_THREADSAFE
+pthread_mutex_t _stdio_openlist_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+
+void __stdio_init_mutex(pthread_mutex_t *m)
+{
+ static const pthread_mutex_t __stdio_mutex_initializer
+ = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+ memcpy(m, &__stdio_mutex_initializer, sizeof(__stdio_mutex_initializer));
+}
+#endif /* __STDIO_THREADSAFE */
+
+/* TODO - do we need to lock things, or do we just assume we're the only
+ * remaining thread? */
+
+/* Note: We assume here that we are the only remaining thread. */
+void _stdio_term(void)
+{
+#if defined(__STDIO_GLIBC_CUSTOM_STREAMS) || defined(__STDIO_THREADSAFE)
+ FILE *ptr;
+#endif
+
+ /* TODO: if called via a signal handler for a signal mid _stdio_fwrite,
+ * the stream may be in an unstable state... what do we do?
+ * perhaps set error flag before and clear when done if successful? */
+
+#ifdef __STDIO_THREADSAFE
+ /* First, forceably unlock the open file list and all files.
+ * Note: Set locking mode to "by caller" to save some overhead later. */
+ __stdio_init_mutex(&_stdio_openlist_lock);
+ for (ptr = _stdio_openlist ; ptr ; ptr = ptr->nextopen ) {
+ ptr->user_locking = FSETLOCKING_BYCALLER;
+ __stdio_init_mutex(&ptr->lock);
+ }
+#endif /* __STDIO_THREADSAFE */
+
+ /* TODO -- set an alarm and flush each file "by hand"? to avoid blocking? */
+
+ /* Now flush all streams. */
+ fflush(NULL);
+
+ /* Next close all custom streams in case of any special cleanup, but
+ * don't use fclose() because that pulls in free and malloc. Also,
+ * don't worry about removing them from the list. Just set the cookie
+ * pointer to NULL so that an error will be generated if someone tries
+ * to use the stream. */
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ for (ptr = _stdio_openlist ; ptr ; ptr = ptr->nextopen ) {
+ if (ptr->cookie != &ptr->filedes) { /* custom stream */
+ __CLOSE(ptr);
+ ptr->cookie = NULL; /* Generate an error if used later. */
+#if 0
+/* #ifdef __STDIO_BUFFERS */
+ } else {
+ /* TODO: "unbuffer" files like glibc does? Inconsistent with
+ * custom stream handling above, but that's necessary to deal
+ * with special user-defined close behavior. */
+ stream->bufwpos = stream->bufrpos = stream->bufend
+#ifdef __STDIO_GETC_MACRO
+ = stream->bufgetc
+#endif
+#ifdef __STDIO_PUTC_MACRO
+ = stream->bufputc
+#endif
+ = stream->bufstart;
+#endif /* __STDIO_BUFFERS */
+ }
+ }
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+}
+
+
+#if defined(__STDIO_BUFFERS) || !defined(__UCLIBC__)
+void _stdio_init(void)
+{
+#ifdef __STDIO_BUFFERS
+ /* stdin and stdout uses line buffering when connected to a tty. */
+ _stdio_streams[0].modeflags ^= isatty(0) * __FLAG_LBF;
+ _stdio_streams[1].modeflags ^= isatty(1) * __FLAG_LBF;
+#endif /* __STDIO_BUFFERS */
+#ifndef __UCLIBC__
+/* __stdio_term is automatically when exiting if stdio is used.
+ * See misc/internals/__uClibc_main.c and and stdlib/atexit.c. */
+ atexit(_stdio_term);
+#endif /* __UCLIBC__ */
+}
+#endif /* defined(__STDIO_BUFFERS) || !defined(__UCLIBC__) */
+#endif /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+
+#endif
+/**********************************************************************/
+/* ANSI/ISO functions. */
+/**********************************************************************/
+#ifdef L_remove
+#include <unistd.h>
+#include <errno.h>
+
+/* No reentrancy issues. */
+
+int remove(register const char *filename)
+{
+ int old_errno = errno;
+
+ /* SUSv3 says equivalent to rmdir() if a directory, and unlink()
+ * otherwise. Hence, we need to try rmdir() first. */
+
+ return (((rmdir(filename) == 0)
+ || ((errno == ENOTDIR)
+ && ((__set_errno(old_errno), unlink(filename)) == 0)))
+ ? 0 : -1);
+}
+#endif
+/**********************************************************************/
+/* rename is a syscall
+#ifdef L_rename
+int rename(const char *old, const char *new);
+#endif
+*/
+/**********************************************************************/
+/* TODO: tmpfile */
+/* #ifdef L_tmpfile */
+/* FILE *tmpfile(void); */
+/* #endif */
+/**********************************************************************/
+/* TODO: tmpname */
+/* #ifdef L_tmpname */
+/* char *tmpname(char *s); */
+/* #endif */
+/**********************************************************************/
+#ifdef L_fclose
+
+/* We need to be careful here to avoid deadlock when threading, as we
+ * need to lock both the file and the open file list. This can clash
+ * with fflush. Since fflush is much more common, we do the extra
+ * work here. */
+
+int fclose(register FILE *stream)
+{
+#if defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS)
+
+ register FILE *ptr;
+ int rv = 0;
+
+#ifdef __STDIO_THREADSAFE
+ /* Need two non-heirchal mutexs... be careful to avoid deadlock*/
+ do {
+ __STDIO_THREADLOCK(stream);
+ if (__STDIO_THREADTRYLOCK_OPENLIST == 0) {
+ break;
+ }
+ __STDIO_THREADUNLOCK(stream);
+ usleep(10000);
+ } while (1);
+#endif /* __STDIO_THREADSAFE */
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+#ifdef __STDIO_BUFFERS
+ if (stream->modeflags & __FLAG_WRITING) {
+ rv = fflush(stream); /* Write any pending buffered chars. */
+ } /* Also disables putc macro if used. */
+
+#ifdef __STDIO_GETC_MACRO
+ /* Not necessary after fflush, but always do this to reduce size. */
+ stream->bufgetc = stream->bufstart; /* Disable getc macro for safety. */
+#endif /* __STDIO_GETC_MACRO */
+#endif /* __STDIO_BUFFERS */
+
+ /* Remove file from open list before closing file descriptor. */
+ ptr = _stdio_openlist;
+ if (ptr == stream) {
+ _stdio_openlist = stream->nextopen;
+ } else {
+ while (ptr) {
+ if (ptr->nextopen == stream) {
+ ptr->nextopen = stream->nextopen;
+ break;
+ }
+ ptr = ptr->nextopen;
+ }
+ }
+ __STDIO_THREADUNLOCK_OPENLIST; /* We're done with the open file list. */
+
+ if (__CLOSE(stream) < 0) { /* Must close even if fflush failed. */
+ rv = EOF;
+ }
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ stream->cookie = NULL; /* To aid debugging... */
+#endif
+ stream->filedes = -1; /* To aid debugging... */
+
+#ifdef __STDIO_BUFFERS
+ if (stream->modeflags & __FLAG_FREEBUF) {
+ free(stream->bufstart);
+ }
+#endif /* __STDIO_BUFFERS */
+
+ /* TODO -- leave the stream locked to catch any dangling refs? */
+ __STDIO_THREADUNLOCK(stream);
+
+ /* At this point, any dangling refs to the stream are the result of
+ * a programming bug... so free the unlocked stream. */
+ if (stream->modeflags & __FLAG_FREEFILE) {
+ free(stream);
+ }
+
+ return rv;
+
+#else /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS) */
+
+ int rv = 0;
+
+ __STDIO_THREADLOCK(stream);
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ if (__CLOSE(stream) < 0) { /* Must close even if fflush failed. */
+ rv = EOF;
+ }
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ stream->cookie = NULL; /* To aid debugging... */
+#endif
+ stream->filedes = -1; /* To aid debugging... */
+
+ __STDIO_THREADUNLOCK(stream);
+
+ /* At this point, any dangling refs to the stream are the result of
+ * a programming bug... so free the unlocked stream. */
+ if (stream->modeflags & __FLAG_FREEFILE) {
+ free(stream);
+ }
+
+ return rv;
+
+#endif /* defined(__STDIO_BUFFERS) || defined(__STDIO_GLIBC_CUSTOM_STREAMS )*/
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fflush
+
+/*
+ * Special cases:
+ * stream == NULL means fflush all writing streams (ANSI/ISO).
+ * stream == (FILE *) &_stdio_openlist -- implementation-specific hack
+ * meaning fflush all line buffered writing streams
+ */
+
+/*
+ * NOTE: ANSI/ISO difference!!! According to the standard, fflush is only
+ * defined for write-only streams, or read/write streams whose last op
+ * was a write. However, reading is allowed for a read/write stream if
+ * a file positioning operation was done (fseek, fsetpos) even though there
+ * is no guarantee of flushing the write data in that case. Hence, for
+ * this case we keep a flag to indicate whether or not the buffer needs to
+ * be flushed even if the last operation was a read. This falls under the
+ * implementation-defined behavior. Otherwise, we would need to flush
+ * every time we did fseek, etc. even if we were still in the buffer's range.
+ */
+
+/* Since the stream pointer arg is allowed to be NULL, or the address of the
+ * stdio open file list if stdio is buffered in this implementation, we can't
+ * use the UNLOCKED() macro here. */
+
+#ifndef __STDIO_THREADSAFE
+strong_alias(fflush_unlocked,fflush)
+#else /* __STDIO_THREADSAFE */
+int fflush(register FILE *stream)
+{
+ int retval;
+
+ if ((stream != NULL)
+#ifdef __STDIO_BUFFERS
+ && (stream != (FILE *) &_stdio_openlist)
+#endif /* __STDIO_BUFFERS */
+ ) {
+ __STDIO_THREADLOCK(stream);
+ retval = fflush_unlocked(stream);
+ __STDIO_THREADUNLOCK(stream);
+ } else {
+ retval = fflush_unlocked(stream);
+ }
+
+ return retval;
+}
+#endif /* __STDIO_THREADSAFE */
+
+int fflush_unlocked(register FILE *stream)
+{
+#ifdef __STDIO_BUFFERS
+
+ int rv = 0;
+ unsigned short mask = (__FLAG_NBF|__FLAG_LBF);
+
+#ifndef NDEBUG
+ if ((stream != NULL) && (stream != (FILE *) &_stdio_openlist)) {
+ __stdio_validate_FILE(stream); /* debugging only */
+ }
+#endif
+
+ if (stream == (FILE *) &_stdio_openlist) { /* fflush all line-buffered */
+ stream = NULL;
+ mask = __FLAG_LBF;
+ }
+
+ if (stream == NULL) { /* flush all (line) buffered writing streams */
+ /* Note -- We have to lock the list even in the unlocked function. */
+ __STDIO_THREADLOCK_OPENLIST;
+ /* TODO -- Can we work around locking the list to avoid keeping it
+ * locked if the write blocks? */
+ for (stream = _stdio_openlist; stream; stream = stream->nextopen) {
+ if (((stream->modeflags ^ __FLAG_NBF) & mask)
+ && (stream->modeflags & __FLAG_WRITING)
+ && fflush(stream)) {
+ rv = EOF;
+ }
+ }
+ __STDIO_THREADUNLOCK_OPENLIST;
+ } else if (stream->modeflags & __FLAG_WRITING) {
+ if (_stdio_fwrite(NULL, 0, stream) > 0) { /* flush buffer contents. */
+ rv = -1; /* Not all chars written. */
+ }
+ } else if (stream->modeflags & (__FLAG_READONLY|__FLAG_READING)) {
+ /* TODO - __FLAG_READING too? check glibc behavior */
+ /* According to info, glibc returns an error when the file is opened
+ * in read-only mode.
+ * ANSI/ISO says behavior in this case is undefined but also says you
+ * shouldn't flush a stream you were reading from.
+ */
+ stream->modeflags |= __FLAG_ERROR; /* TODO - check glibc behavior */
+ __set_errno(EBADF);
+ rv = -1;
+ }
+
+#ifndef NDEBUG
+ if ((stream != NULL) && (stream != (FILE *) &_stdio_openlist)) {
+ __stdio_validate_FILE(stream); /* debugging only */
+ }
+#endif
+ return rv;
+
+#else /* __STDIO_BUFFERS --------------------------------------- */
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ /* TODO -- check glibc behavior regarding error indicator */
+ return (stream->modeflags & (__FLAG_READONLY|__FLAG_READING)
+ ? ((stream->modeflags |= __FLAG_ERROR), __set_errno(EBADF), EOF)
+ : 0 );
+
+#endif /* __STDIO_BUFFERS */
+}
+#endif
+/**********************************************************************/
+#ifdef L_fopen
+
+/* No reentrancy issues. */
+
+FILE *fopen(const char * __restrict filename, const char * __restrict mode)
+{
+ return _stdio_fopen(filename, mode, NULL, -1);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__stdio_fopen
+
+/*
+ * Cases:
+ * fopen : filename != NULL, stream == NULL, filedes == -1
+ * freopen : filename != NULL, stream != NULL, filedes == -1
+ * fdopen : filename == NULL, stream == NULL, filedes valid
+ * fsfopen : filename != NULL, stream != NULL, filedes == -1
+ * fopen64 : filename != NULL, stream == NULL, filedes == -2
+ */
+
+#if O_ACCMODE != 3 || O_RDONLY != 0 || O_WRONLY != 1 || O_RDWR != 2 || O_APPEND != __FLAG_APPEND || O_LARGEFILE != __FLAG_LARGEFILE
+#error Assumption violated - mode constants
+#endif
+
+/* Internal function -- reentrant (locks open file list) */
+
+FILE *_stdio_fopen(const char * __restrict filename,
+ register const char * __restrict mode,
+ register FILE * __restrict stream, int filedes)
+{
+ __mode_t open_mode;
+
+ /* parse mode */
+ open_mode = O_RDONLY;
+ if (*mode != 'r') { /* not read */
+ open_mode = (O_WRONLY | O_CREAT | O_TRUNC);
+ if (*mode != 'w') { /* not write (create or truncate)*/
+ open_mode = (O_WRONLY | O_CREAT | O_APPEND);
+ if (*mode != 'a') { /* not write (create or append) */
+ __set_errno(EINVAL); /* then illegal mode */
+ if (stream) { /* If this is freopen, free the stream. */
+ goto FREE_STREAM;
+ }
+ return NULL;
+ }
+ }
+ }
+
+ if ((*++mode == 'b')) { /* binary mode (NOP currently) */
+ ++mode;
+ }
+
+ if (*mode == '+') { /* read-write */
+ ++mode;
+ open_mode &= ~(O_RDONLY | O_WRONLY);
+ open_mode |= O_RDWR;
+ }
+
+#if defined(__STDIO_GNU_FEATURE) || defined(__STDIO_FOPEN_LARGEFILE_MODE)
+ while (*mode) { /* ignore everything else except ... */
+#ifdef __STDIO_FOPEN_EXCLUSIVE_MODE
+ if (*mode++ == 'x') { /* open exclusive -- glibc extension */
+ open_mode |= O_EXCL;
+ }
+#endif /* __STDIO_FOPEN_EXCLUSIVE_MODE */
+#ifdef __STDIO_FOPEN_LARGEFILE_MODE
+ if (*mode++ == 'F') { /* open large file */
+ open_mode |= O_LARGEFILE;
+ }
+#endif /* __STDIO_FOPEN_LARGEFILE_MODE */
+ }
+#endif /* __STDIO_FOPEN_EXCLUSIVE_MODE or __STDIO_FOPEN_LARGEFILE_MODE def'd */
+
+#ifdef __BCC__
+ mode = filename; /* TODO: help BCC with register allocation. */
+#define filename mode
+#endif /* __BCC__ */
+
+ if (!stream) { /* Need to allocate a FILE. */
+#ifdef __STDIO_BUFFERS
+ if ((stream = malloc(sizeof(FILE))) == NULL) {
+ return stream;
+ }
+ stream->modeflags = __FLAG_FREEFILE;
+ if ((stream->bufstart = malloc(BUFSIZ)) != 0) {
+ stream->bufend = stream->bufstart + BUFSIZ;
+ stream->modeflags |= __FLAG_FREEBUF;
+ } else {
+#if __STDIO_BUILTIN_BUF_SIZE > 0
+ stream->bufstart = stream->unbuf;
+ stream->bufend = stream->unbuf + sizeof(stream->unbuf);
+#else /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+ stream->bufstart = stream->bufend = NULL;
+#endif /* __STDIO_BUILTIN_BUF_SIZE > 0 */
+ }
+#else /* __STDIO_BUFFERS */
+ if ((stream = malloc(sizeof(FILE))) == NULL) {
+ return stream;
+ }
+ stream->modeflags = __FLAG_FREEFILE;
+#endif /* __STDIO_BUFFERS */
+ }
+
+ if (filedes >= 0) { /* Handle fdopen trickery. */
+ /*
+ * NOTE: it is insufficient to just check R/W/RW agreement.
+ * We must also check for append mode agreement, as well as
+ * largefile agreement if applicable.
+ */
+ int i = (open_mode & (O_ACCMODE|O_APPEND|O_LARGEFILE)) + 1;
+
+ if ((i & (((int) filename) + 1)) != i) {
+ __set_errno(EINVAL);
+ filedes = -1;
+ }
+ stream->filedes = filedes;
+ } else {
+#ifdef __STDIO_LARGE_FILES
+ if (filedes < -1) {
+ open_mode |= __FLAG_LARGEFILE;
+ }
+#endif /* __STDIO_LARGE_FILES */
+ stream->filedes = open(filename, open_mode, 0666);
+ }
+
+ if (stream->filedes < 0) {
+ FREE_STREAM:
+#ifdef __STDIO_BUFFERS
+ if (stream->modeflags & __FLAG_FREEBUF) {
+ free(stream->bufstart);
+ }
+#endif /* __STDIO_BUFFERS */
+ if (stream->modeflags & __FLAG_FREEFILE) {
+ free(stream);
+ }
+ return NULL;
+ }
+
+#ifdef __STDIO_BUFFERS
+ stream->modeflags |= (isatty(stream->filedes) * __FLAG_LBF)
+ | ((((open_mode & O_ACCMODE) + 1) ^ 0x03) * __FLAG_WRITEONLY)
+ | (open_mode & (O_APPEND|O_LARGEFILE));
+
+
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc =
+#endif
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc =
+#endif
+ stream->bufwpos = stream->bufrpos = stream->bufstart;
+
+#else /* __STDIO_BUFFERS */
+ stream->modeflags |=
+ ((((open_mode & O_ACCMODE) + 1) ^ 0x03) * __FLAG_WRITEONLY)
+ | (open_mode & (O_APPEND|O_LARGEFILE));
+#endif /* __STDIO_BUFFERS */
+
+#ifdef __STDIO_GLIBC_CUSTOM_STREAMS
+ stream->cookie = &(stream->filedes);
+ stream->gcs.read = _cs_read;
+ stream->gcs.write = _cs_write;
+ stream->gcs.seek = 0; /* The internal seek func handles normals. */
+ stream->gcs.close = _cs_close;
+#endif /* __STDIO_GLIBC_CUSTOM_STREAMS */
+
+#ifdef __STDIO_THREADSAFE
+ __stdio_init_mutex(&stream->lock);
+#endif /* __STDIO_THREADSAFE */
+
+#if defined(__STDIO_BUFFERS) \
+|| (defined(__STDIO_THREADSAFE) && defined(__STDIO_GLIBC_CUSTOM_STREAMS))
+ __STDIO_THREADLOCK_OPENLIST;
+ stream->nextopen = _stdio_openlist; /* New files are inserted at */
+ _stdio_openlist = stream; /* the head of the list. */
+ __STDIO_THREADUNLOCK_OPENLIST;
+#endif
+
+ __stdio_validate_FILE(stream); /* debugging only */
+ return stream;
+#ifdef __BCC__
+#undef filename
+#endif /* __BCC__ */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_freopen
+
+/* Reentrant. */
+
+FILE *freopen(const char * __restrict filename, const char * __restrict mode,
+ register FILE * __restrict stream)
+{
+ /*
+ * ANSI/ISO allow (implementation-defined) change of mode for an
+ * existing file if filename is NULL. It doesn't look like Linux
+ * supports this, so we don't here.
+ *
+ * NOTE: Whether or not the stream is free'd on failure is unclear
+ * w.r.t. ANSI/ISO. This implementation chooses to free the
+ * stream and associated buffer if they were dynamically
+ * allocated.
+ * TODO: Check the above.
+ * TODO: Apparently linux allows setting append mode. Implement?
+ */
+ unsigned short dynmode;
+ FILE *fp;
+
+ __STDIO_THREADLOCK(stream);
+
+ /* First, flush and close, but don't deallocate, the stream. */
+ /* This also removes the stream for the open file list. */
+ dynmode =
+#ifdef __STDIO_BUFFERS
+ // __MASK_BUFMODE | /* TODO: check */
+#endif /* __STDIO_BUFFERS */
+ (stream->modeflags & (__FLAG_FREEBUF|__FLAG_FREEFILE));
+
+ stream->modeflags &= ~(__FLAG_FREEBUF|__FLAG_FREEFILE);
+ fclose(stream); /* Failures are ignored. */
+ stream->modeflags = dynmode;
+
+ fp = _stdio_fopen(filename, mode, stream, -1);
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return fp;
+}
+#endif
+/**********************************************************************/
+#ifdef L_freopen64
+
+/* Reentrant. */
+
+/* TODO -- is it collecting the common work (40 bytes) into a function? */
+FILE *freopen64(const char * __restrict filename, const char * __restrict mode,
+ register FILE * __restrict stream)
+{
+ unsigned short dynmode;
+ FILE *fp;
+
+ __STDIO_THREADLOCK(stream);
+
+ /* First, flush and close, but don't deallocate, the stream. */
+ /* This also removes the stream for the open file list. */
+ dynmode =
+#ifdef __STDIO_BUFFERS
+ // __MASK_BUFMODE | /* TODO: check */
+#endif /* __STDIO_BUFFERS */
+ (stream->modeflags & (__FLAG_FREEBUF|__FLAG_FREEFILE));
+
+ stream->modeflags &= ~(__FLAG_FREEBUF|__FLAG_FREEFILE);
+ fclose(stream); /* Failures are ignored. */
+ stream->modeflags = dynmode;
+
+ fp = _stdio_fopen(filename, mode, stream, -2); /* TODO -- magic const */
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return fp;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_setbuf
+
+/* Reentrant through setvbuf(). */
+
+void setbuf(FILE * __restrict stream, register char * __restrict buf)
+{
+#ifdef __STDIO_BUFFERS
+ int mode;
+
+ mode = (buf != NULL) ? _IOFBF : _IONBF;
+ setvbuf(stream, buf, mode, BUFSIZ);
+#else /* __STDIO_BUFFERS */
+ /* TODO -- assert on stream? */
+ /* Nothing to do. */
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_setvbuf
+
+/* Reentrant. */
+
+int setvbuf(register FILE * __restrict stream, register char * __restrict buf,
+ int mode, size_t size)
+{
+#ifdef __STDIO_BUFFERS
+
+ int allocated_buf_flag;
+ int rv = EOF;
+
+ __STDIO_THREADLOCK(stream);
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ if (((unsigned int) mode) > 2) { /* Illegal mode. */
+ /* TODO -- set an errno? */
+ goto DONE;
+ }
+
+#ifdef __STDIO_FLEXIBLE_SETVBUF
+ /* C89 standard requires no ops before setvbuf, but we can be flexible. */
+ /* NOTE: This will trash any chars ungetc'd!!! */
+ /* TODO: hmm could preserve unget count since ungot slots aren't changed (true?)
+ * but this will fail when buffered chars read from a pipe unless the user buf
+ * is big enough to copy everything over. */
+ if (fseek(stream, 0L, SEEK_CUR)) {
+ goto DONE;
+ }
+#else /* __STDIO_FLEXIBLE_SETVBUF */
+ /*
+ * Note: ANSI/ISO requires setvbuf to be called after opening the file
+ * but before any other operation other than a failed setvbuf call.
+ * We'll cheat here and only test if the wide or narrow mode flag has
+ * been set; i.e. no read or write (or unget or fwide) operations have
+ * taken place.
+ */
+#ifdef __STDIO_WIDE
+ if (stream->modeflags & (__FLAG_WIDE|__FLAG_NARROW)) {
+ goto DONE;
+ }
+#else /* __STDIO_WIDE */
+ /* Note: This only checks if not currently reading or writing. */
+ if (stream->modeflags & (__FLAG_READING|__FLAG_WRITING)) {
+ goto DONE;
+ }
+#endif /* __STDIO_WIDE */
+#endif /* __STDIO_FLEXIBLE_SETVBUF */
+
+ if (mode == _IONBF) {
+ size = 0;
+ buf = NULL;
+ }
+
+ stream->modeflags &= ~(__MASK_BUFMODE); /* Clear current mode */
+ stream->modeflags |= mode * __FLAG_LBF; /* and set new one. */
+
+ allocated_buf_flag = 0;
+ if ((!buf) && (size != (stream->bufend - stream->bufstart))) {
+ /* No buffer supplied and requested size different from current. */
+ allocated_buf_flag = __FLAG_FREEBUF;
+ /* If size == 0, create a (hopefully) bogus non-null pointer... */
+ if (!(buf = ((size > 0) ? malloc(size) : ((char *)NULL) + 1))) {
+ goto DONE; /* Keep current buffer. */
+ }
+ }
+
+ /* TODO: setvbuf "signal" safety */
+ if (buf && (buf != (char *) stream->bufstart)) { /* Want new buffer. */
+ if (stream->modeflags & __FLAG_FREEBUF) {
+ stream->modeflags &= ~(__FLAG_FREEBUF);
+ free(stream->bufstart);
+ }
+ stream->modeflags |= allocated_buf_flag; /* Free-able buffer? */
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc =
+#endif
+#ifdef __STDIO_PUTC_MACRO
+ stream->bufputc =
+#endif
+ stream->bufwpos = stream->bufrpos = stream->bufstart = buf;
+ stream->bufend = buf + size;
+ }
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ rv = 0;
+
+ DONE:
+ __STDIO_THREADUNLOCK(stream);
+
+ return rv;
+
+#else /* __STDIO_BUFFERS */
+ __stdio_validate_FILE(stream); /* debugging only */
+ /* TODO -- set errno for illegal mode? */
+
+ return EOF;
+#endif /* __STDIO_BUFFERS */
+}
+
+#endif
+/**********************************************************************
+int fprintf(FILE * __restrict stream, const char * __restrict format, ...);
+int fscanf(FILE * __restrict stream, const char * __restrict format, ...);
+int printf(const char * __restrict format, ...);
+int scanf(const char * __restrict format, ...);
+int snprintf(char * __restrict s, size_t n,
+ const char * __restrict format, ...);
+int sprintf(char * __restrict s, const char * __restrict format, ...);
+int sscanf(char * __restrict s, const char * __restrict format, ...);
+int vfprintf(FILE * __restrict stream, const char * __restrict format,
+ va_list arg);
+int vfscanf(FILE * __restrict stream, const char * __restrict format,
+ va_list arg);
+int vprintf(const char * __restrict format, va_list arg);
+int vscanf(const char * __restrict format, va_list arg);
+int vsnprintf(char * __restrict s, size_t n,
+ const char * __restrict format, va_list arg);
+int vsprintf(char * __restrict s, const char * __restrict format,
+ va_list arg);
+int vsscanf(char * __restrict s, const char * __restrict format,
+ va_list arg);
+**********************************************************************/
+#ifdef L_fgetc
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,fgetc,(FILE *stream),(stream))
+{
+ unsigned char buf[1];
+
+#ifdef __STDIO_WIDE
+
+ return (fread(buf, (size_t) 1, (size_t) 1, stream) > 0) ? *buf : EOF;
+
+#else /* __STDIO_WIDE */
+
+ return (_stdio_fread(buf, (size_t) 1, stream) > 0) ? *buf : EOF;
+
+#endif /* __STDIO_WIDE */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fgets
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(char *,fgets,
+ (char *__restrict s, int n, register FILE * __restrict stream),
+ (s, n, stream))
+{
+ register char *p;
+ int c;
+
+ p = s;
+ while ((n > 1) && ((c = getc(stream)) != EOF) && ((*p++ = c) != '\n')) {
+ --n;
+ }
+ if (p == s) {
+ /* TODO -- should we set errno? */
+/* if (n <= 0) { */
+/* errno = EINVAL; */
+/* } */
+ return NULL;
+ }
+ *p = 0;
+ return s;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fputc
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,fputc,(int c, FILE *stream),(c,stream))
+{
+ unsigned char buf[1];
+
+ *buf = (unsigned char) c;
+
+#ifdef __STDIO_WIDE
+
+ return (fwrite(buf, (size_t) 1, (size_t) 1, stream) > 0) ? (*buf) : EOF;
+
+#else /* __STDIO_WIDE */
+
+ return (_stdio_fwrite(buf, (size_t) 1, stream) > 0) ? (*buf) : EOF;
+
+#endif /* __STDIO_WIDE */
+}
+#endif
+/**********************************************************************/
+#ifdef L_fputs
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,fputs,
+ (register const char * __restrict s, FILE * __restrict stream),
+ (s, stream))
+{
+ size_t n = strlen(s);
+
+#ifdef __STDIO_WIDE
+
+ return (fwrite(s, n, (size_t) 1, stream) > 0) ? n : EOF;
+
+#else /* __STDIO_WIDE */
+
+ return (_stdio_fwrite(s, n, stream) == n) ? n : EOF;
+
+#endif /* __STDIO_WIDE */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getc
+#undef getc
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,getc,(register FILE *stream),(stream))
+{
+ return __GETC(stream); /* Invoke the macro. */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getchar
+#undef getchar /* Just in case. */
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED_STREAM(int,getchar,(void),(),_stdin)
+{
+ register FILE *stream = _stdin; /* This helps bcc optimize. */
+
+ return __GETC(stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_gets
+
+link_warning(gets, "the 'gets' function is dangerous and should not be used.")
+
+/* Reentrant. */
+
+char *gets(char *s) /* WARNING!!! UNSAFE FUNCTION!!! */
+{
+ register FILE *stream = _stdin; /* This helps bcc optimize. */
+ register char *p = s;
+ int c;
+
+ __STDIO_THREADLOCK(stream);
+
+ /* Note: don't worry about performance here... this shouldn't be used!
+ * Therefore, force actual function call. */
+ while (((c = (*getc)(stream)) != EOF) && ((*p = c) != '\n')) {
+ ++p;
+ }
+ if ((c == EOF) || (s == p)) {
+ s = NULL;
+ } else {
+ *p = 0;
+ }
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return s;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putc
+#undef putc
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,putc,(int c, register FILE *stream),(c,stream))
+{
+ return __PUTC(c, stream); /* Invoke the macro. */
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putchar
+#undef putchar /* Just in case. */
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED_STREAM(int,putchar,(int c),(c),_stdout)
+{
+ register FILE *stream = _stdout; /* This helps bcc optimize. */
+
+ return __PUTC(c, stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_puts
+
+/* Reentrant. */
+
+int puts(register const char *s)
+{
+ register FILE *stream = _stdout; /* This helps bcc optimize. */
+ int n;
+
+ __STDIO_THREADLOCK(stream);
+
+ n = fputs(s,stream) + 1;
+ if (
+#if 1
+ fputc('\n',stream)
+#else
+ fputs("\n",stream)
+#endif
+ == EOF) {
+ n = EOF;
+ }
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return n;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_ungetc
+/*
+ * Note: This is the application-callable ungetc. If scanf calls this, it
+ * should also set stream->ungot[1] to 0 if this is the only ungot.
+ */
+
+/* Reentrant. */
+
+int ungetc(int c, register FILE *stream)
+{
+ __STDIO_THREADLOCK(stream);
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+#ifdef __STDIO_WIDE
+ if (stream->modeflags & __FLAG_WIDE) {
+ stream->modeflags |= __FLAG_ERROR;
+ c = EOF;
+ goto DONE;
+ }
+ stream->modeflags |= __FLAG_NARROW;
+#endif /* __STDIO_WIDE */
+
+ /* If can't read or there's been an error, or c == EOF, or ungot slots
+ * already filled, then return EOF */
+ if ((stream->modeflags
+ & (__MASK_UNGOT2|__FLAG_WRITEONLY
+#ifndef __STDIO_AUTO_RW_TRANSITION
+ |__FLAG_WRITING /* Note: technically no, but yes in spirit */
+#endif /* __STDIO_AUTO_RW_TRANSITION */
+ ))
+ || ((stream->modeflags & __MASK_UNGOT1) && (stream->ungot[1]))
+ || (c == EOF) ) {
+ c = EOF;
+ goto DONE;;
+ }
+
+#ifdef __STDIO_BUFFERS
+ /* TODO: shouldn't allow writing??? */
+ if (stream->modeflags & __FLAG_WRITING) {
+ fflush(stream); /* Commit any write-buffered chars. */
+ }
+#endif /* __STDIO_BUFFERS */
+
+ /* Clear EOF and WRITING flags, and set READING FLAG */
+ stream->modeflags &= ~(__FLAG_EOF|__FLAG_WRITING);
+ stream->modeflags |= __FLAG_READING;
+ stream->ungot[1] = 1; /* Flag as app ungetc call; scanf fixes up. */
+ stream->ungot[(stream->modeflags++) & __MASK_UNGOT] = c;
+
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc = stream->bufstart; /* Must disable getc macro. */
+#endif
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ DONE:
+ __STDIO_THREADUNLOCK(stream);
+
+ return c;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fread
+/* NOTE: Surely ptr cannot point to a buffer of size > SIZE_MAX.
+ * Therefore, we treat the case size * nmemb > SIZE_MAX as an error,
+ * and include an assert() for it. */
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(size_t,fread,
+ (void * __restrict ptr, size_t size, size_t nmemb,
+ FILE * __restrict stream),
+ (ptr,size,nmemb,stream))
+{
+#ifdef __STDIO_WIDE
+ if (stream->modeflags & __FLAG_WIDE) {
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO -- errno? it this correct? */
+ return 0;
+ }
+ stream->modeflags |= __FLAG_NARROW;
+#endif /* __STDIO_WIDE */
+
+ return (size == 0)
+ ? 0
+ : ( assert( ((size_t)(-1)) / size >= nmemb ),
+ _stdio_fread(ptr, nmemb * size, stream) / size );
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fwrite
+/* NOTE: Surely ptr cannot point to a buffer of size > SIZE_MAX.
+ * Therefore, we treat the case size * nmemb > SIZE_MAX as an error,
+ * and include an assert() for it. */
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(size_t,fwrite,
+ (const void * __restrict ptr, size_t size, size_t nmemb,
+ FILE * __restrict stream),
+ (ptr,size,nmemb,stream))
+{
+#ifdef __STDIO_WIDE
+ if (stream->modeflags & __FLAG_WIDE) {
+ stream->modeflags |= __FLAG_ERROR;
+ /* TODO -- errno? it this correct? */
+ return 0;
+ }
+ stream->modeflags |= __FLAG_NARROW;
+#endif /* __STDIO_WIDE */
+
+ return (size == 0)
+ ? 0
+ : ( assert( ((size_t)(-1)) / size >= nmemb ),
+ _stdio_fwrite(ptr, nmemb * size, stream) / size );
+}
+
+#endif
+/**********************************************************************/
+#if defined(L_fgetpos) || defined(L_fgetpos64)
+
+/* Reentrant -- fgetpos() and fgetpos64(). */
+
+#if defined(L_fgetpos) && defined(L_fgetpos64)
+#error L_fgetpos and L_fgetpos64 are defined simultaneously!
+#endif
+
+#ifndef L_fgetpos64
+#define fgetpos64 fgetpos
+#define fpos64_t fpos_t
+#define ftello64 ftell
+#endif
+
+
+int fgetpos64(FILE * __restrict stream, register fpos64_t * __restrict pos)
+{
+ int retval;
+
+ __STDIO_THREADLOCK(stream);
+
+ retval = ((pos != NULL) && ((pos->__pos = ftello64(stream)) >= 0))
+ ? (
+#ifdef __STDIO_MBSTATE_DATA
+ __COPY_MBSTATE(&(pos->__mbstate), &(stream->mbstate)),
+#endif /* __STDIO_MBSTATE_DATA */
+ 0)
+ : (__set_errno(EINVAL), -1);
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return retval;
+}
+
+#ifndef L_fgetpos64
+#undef fgetpos64
+#undef fpos64_t
+#undef ftello64
+#endif
+
+#endif
+/**********************************************************************/
+#ifdef L_fseek
+strong_alias(fseek, fseeko);
+#endif
+
+#if defined(L_fseek) && defined(__STDIO_LARGE_FILES)
+
+int fseek(register FILE *stream, long int offset, int whence)
+{
+ return fseeko64(stream, offset, whence);
+}
+
+#endif
+
+#if defined(L_fseeko64) || (defined(L_fseek) && !defined(__STDIO_LARGE_FILES))
+
+#ifndef L_fseeko64
+#define fseeko64 fseek
+#define __off64_t long int
+#endif
+
+/* Reentrant -- fseek(), fseeko(), fseeko64() */
+
+int fseeko64(register FILE *stream, __off64_t offset, int whence)
+{
+#if SEEK_SET != 0 || SEEK_CUR != 1 || SEEK_END != 2
+#error Assumption violated -- values of SEEK_SET, SEEK_CUR, SEEK_END
+#endif
+ __offmax_t pos[1];
+ int retval;
+
+ if ( ((unsigned int) whence) > 2 ) {
+ __set_errno(EINVAL);
+ return -1;
+ }
+
+ __STDIO_THREADLOCK(stream);
+
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ retval = -1;
+ *pos = offset;
+ if (
+#ifdef __STDIO_BUFFERS
+ /* First commit any pending buffered writes. */
+ ((stream->modeflags & __FLAG_WRITING) && fflush(stream)) ||
+#endif /* __STDIO_BUFFERS */
+ ((whence == SEEK_CUR) && (_stdio_adjpos(stream, pos) < 0))
+ || (_stdio_lseek(stream, pos, whence) < 0)
+ ) {
+ __stdio_validate_FILE(stream); /* debugging only */
+ goto DONE;
+ }
+
+#ifdef __STDIO_BUFFERS
+ /* only needed if reading but do it anyway to avoid test */
+#ifdef __STDIO_GETC_MACRO
+ stream->bufgetc = /* Must disable getc. */
+#endif
+ stream->bufwpos = stream->bufrpos = stream->bufstart;
+#endif /* __STDIO_BUFFERS */
+
+ stream->modeflags &=
+ ~(__FLAG_READING|__FLAG_WRITING|__FLAG_EOF|__MASK_UNGOT);
+
+#ifdef __STDIO_MBSTATE_DATA
+ /* TODO: don't clear state if don't move? */
+ __INIT_MBSTATE(&(stream->mbstate));
+#endif /* __STDIO_MBSTATE_DATA */
+ __stdio_validate_FILE(stream); /* debugging only */
+
+ retval = 0;
+
+ DONE:
+ __STDIO_THREADUNLOCK(stream);
+
+ return retval;
+}
+
+#ifndef L_fseeko64
+#undef fseeko64
+#undef __off64_t
+#endif
+
+#endif
+/**********************************************************************/
+#if defined(L_fsetpos) || defined(L_fsetpos64)
+
+#if defined(L_fsetpos) && defined(L_fsetpos64)
+#error L_fsetpos and L_fsetpos64 are defined simultaneously!
+#endif
+
+#ifndef L_fsetpos64
+#define fsetpos64 fsetpos
+#define fpos64_t fpos_t
+#define fseeko64 fseek
+#endif
+
+/* Reentrant -- fgetpos{64}() through fseek{64}(). */
+
+int fsetpos64(FILE *stream, register const fpos64_t *pos)
+{
+ if (!pos) {
+ __set_errno(EINVAL);
+ return EOF;
+ }
+#ifdef __STDIO_MBSTATE_DATA
+#error unimplemented and non-reentrant besides!
+ {
+ int retval;
+ if ((retval = fseeko64(stream, pos->__pos, SEEK_SET)) == 0) {
+ __COPY_MBSTATE(&(stream->mbstate), &(pos->__mbstate));
+ }
+ return retval;
+ }
+#else /* __STDIO_MBSTATE_DATA */
+ return fseeko64(stream, pos->__pos, SEEK_SET);
+#endif /* __STDIO_MBSTATE_DATA */
+}
+
+#ifndef L_fsetpos64
+#undef fsetpos64
+#undef fpos64_t
+#undef fseeko64
+#endif
+
+#endif
+/**********************************************************************/
+#ifdef L_ftell
+strong_alias(ftell, ftello);
+#endif
+
+#if defined(L_ftell) && defined(__STDIO_LARGE_FILES)
+long int ftell(register FILE *stream)
+{
+ __offmax_t pos = ftello64(stream);
+
+ return (pos == ((long int) pos)) ? pos : (__set_errno(EOVERFLOW), -1);
+}
+#endif
+
+#if defined(L_ftello64) || (defined(L_ftell) && !defined(__STDIO_LARGE_FILES))
+
+#ifndef L_ftello64
+#define ftello64 ftell
+#define __off64_t long int
+#endif
+
+/* Reentrant -- ftell, ftello, ftello64. */
+
+__off64_t ftello64(register FILE *stream)
+{
+ __offmax_t pos[1];
+ __off64_t retval;
+
+ __STDIO_THREADLOCK(stream);
+
+ retval = (((*pos = 0), (_stdio_lseek(stream, pos, SEEK_CUR) < 0))
+ || (_stdio_adjpos(stream, pos) < 0)) ? -1 : *pos;
+
+ __STDIO_THREADUNLOCK(stream);
+
+ return retval;
+}
+
+#ifndef L_ftello64
+#undef ftello64
+#undef __off64_t
+#endif
+
+#endif
+/**********************************************************************/
+#ifdef L_rewind
+
+void rewind(register FILE *stream)
+{
+ __STDIO_THREADLOCK(stream);
+
+ __CLEARERR(stream); /* Clear errors first and then seek */
+ fseek(stream, 0L, SEEK_SET); /* in case there is an error seeking. */
+
+ __STDIO_THREADUNLOCK(stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_clearerr
+#undef clearerr
+
+/* Reentrancy handled by UNLOCKED_VOID_RETURN() macro. */
+
+UNLOCKED_VOID_RETURN(clearerr,(FILE *stream),(stream))
+{
+ __CLEARERR(stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_feof
+#undef feof
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,feof,(FILE *stream),(stream))
+{
+ return __FEOF(stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_ferror
+#undef ferror
+
+/* Reentrancy handled by UNLOCKED() macro. */
+
+UNLOCKED(int,ferror,(FILE *stream),(stream))
+{
+ return __FERROR(stream);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_perror
+
+/* TODO -- not allowed to interfere with static storage of strerror(). */
+
+void perror(register const char *s)
+{
+ /* If the program is calling perror, it's a safe bet that printf and
+ * friends are used as well. It is also possible that the calling
+ * program could buffer stderr, or reassign it. */
+
+ register const char *sep;
+
+ sep = ": ";
+ if (!(s && *s)) { /* Caller did not supply a prefix message */
+ s = (sep += 2); /* or passed an empty string. */
+ }
+
+#if 1
+#ifdef __STDIO_PRINTF_M_SPEC
+ fprintf(_stderr, "%s%s%m\n", s, sep); /* Use the gnu %m feature. */
+#else
+ /* TODO: use strerror_r instead? */
+ fprintf(_stderr, "%s%s%s\n", s, sep, strerror(errno));
+#endif
+#else
+ /* Note: Assumes stderr not closed or buffered. */
+ __STDIO_THREADLOCK(stderr);
+ _stdio_fdout(STDERR_FILENO, s, sep, strerror(errno));
+ __STDIO_THREADUNLOCK(stderr);
+#endif
+}
+
+#endif
+/**********************************************************************/
+/* UTILITY funcs */
+/**********************************************************************/
+#ifdef L__stdio_fdout
+
+/* Not reentrant -- TODO: lock associated stream if a know file descriptor? */
+
+void _stdio_fdout(int fd, ...)
+{
+ va_list arg;
+ const char *p;
+
+ va_start(arg, fd);
+ while ((p = va_arg(arg, const char *)) != NULL) {
+ write(fd, p, strlen(p));
+ }
+ va_end(arg);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__uintmaxtostr
+
+/* Avoid using long long / and % operations to cut down dependencies on
+ * libgcc.a. Definitely helps on i386 at least. */
+#if (UINTMAX_MAX > UINT_MAX) && ((UINTMAX_MAX/UINT_MAX) - 2 <= UINT_MAX)
+#define INTERNAL_DIV_MOD
+#endif
+
+char *_uintmaxtostr(char * __restrict bufend, uintmax_t uval,
+ int base, __UIM_CASE alphacase)
+{
+ int negative;
+ unsigned int digit;
+#ifdef INTERNAL_DIV_MOD
+ unsigned int H, L, high, low, rh;
+#endif
+
+ negative = 0;
+ if (base < 0) { /* signed value */
+ base = -base;
+ if (uval > INTMAX_MAX) {
+ uval = -uval;
+ negative = 1;
+ }
+ }
+
+ /* this is an internal routine -- we shouldn't need to check this */
+ assert(!((base < 2) || (base > 36)));
+
+ *bufend = '\0';
+
+#ifndef INTERNAL_DIV_MOD
+ do {
+ digit = uval % base;
+ uval /= base;
+
+ *--bufend = ( (digit < 10) ? digit + '0' : digit + alphacase );
+ } while (uval);
+
+#else /* ************************************************** */
+
+ H = (UINT_MAX / base);
+ L = UINT_MAX % base + 1;
+ if (L == base) {
+ ++H;
+ L = 0;
+ }
+ low = (unsigned int) uval;
+ high = (unsigned int) (uval >> (sizeof(unsigned int) * CHAR_BIT));
+
+ do {
+ rh = high % base;
+ high /= base;
+ digit = (low % base) + (L * rh);
+ low = (low / base) + (H * rh) + (digit / base);
+ digit %= base;
+
+ *--bufend = ( (digit < 10) ? digit + '0' : digit + alphacase );
+ } while (low | high);
+
+#endif /******************************************************/
+
+ if (negative) {
+ *--bufend = '-';
+ }
+
+ return bufend;
+}
+#undef INTERNAL_DIV_MOD
+
+#endif
OSDN Git Service
