#undef max
#include <stdlib.h>
#include "fio.h"
-#include "fmt.h" /* for struct syl */
+#include "fmt.h" /* for struct syl */
/*global definitions*/
-unit f__units[MXUNIT]; /*unit table*/
-int f__init; /*bit 0: set after initializations;
- bit 1: set during I/O involving returns to
- caller of library (or calls to user code)*/
-cilist *f__elist; /*active external io list*/
-icilist *f__svic; /*active internal io list*/
-flag f__reading; /*1 if reading, 0 if writing*/
-flag f__cplus,f__cblank;
+unit f__units[MXUNIT]; /*unit table */
+int f__init; /*bit 0: set after initializations;
+ bit 1: set during I/O involving returns to
+ caller of library (or calls to user code) */
+cilist *f__elist; /*active external io list */
+icilist *f__svic; /*active internal io list */
+flag f__reading; /*1 if reading, 0 if writing */
+flag f__cplus, f__cblank;
char *f__fmtbuf;
int f__fmtlen;
-flag f__external; /*1 if external io, 0 if internal */
-int (*f__getn)(void); /* for formatted input */
-void (*f__putn)(int); /* for formatted output */
-int (*f__doed)(struct syl*, char*, ftnlen),(*f__doned)(struct syl*);
-int (*f__dorevert)(void),(*f__donewrec)(void),(*f__doend)(void);
-flag f__sequential; /*1 if sequential io, 0 if direct*/
-flag f__formatted; /*1 if formatted io, 0 if unformatted*/
-FILE *f__cf; /*current file*/
-unit *f__curunit; /*current unit*/
-int f__recpos; /*place in current record*/
+flag f__external; /*1 if external io, 0 if internal */
+int (*f__getn) (void); /* for formatted input */
+void (*f__putn) (int); /* for formatted output */
+int (*f__doed) (struct syl *, char *, ftnlen), (*f__doned) (struct syl *);
+int (*f__dorevert) (void), (*f__donewrec) (void), (*f__doend) (void);
+flag f__sequential; /*1 if sequential io, 0 if direct */
+flag f__formatted; /*1 if formatted io, 0 if unformatted */
+FILE *f__cf; /*current file */
+unit *f__curunit; /*current unit */
+int f__recpos; /*place in current record */
int f__cursor, f__hiwater, f__scale;
char *f__icptr;
/*error messages*/
-char *F_err[] =
-{
- "error in format", /* 100 */
- "illegal unit number", /* 101 */
- "formatted io not allowed", /* 102 */
- "unformatted io not allowed", /* 103 */
- "direct io not allowed", /* 104 */
- "sequential io not allowed", /* 105 */
- "can't backspace file", /* 106 */
- "null file name", /* 107 */
- "can't stat file", /* 108 */
- "unit not connected", /* 109 */
- "off end of record", /* 110 */
- "truncation failed in endfile", /* 111 */
- "incomprehensible list input", /* 112 */
- "out of free space", /* 113 */
- "unit not connected", /* 114 */
- "read unexpected character", /* 115 */
- "bad logical input field", /* 116 */
- "bad variable type", /* 117 */
- "bad namelist name", /* 118 */
- "variable not in namelist", /* 119 */
- "no end record", /* 120 */
- "variable count incorrect", /* 121 */
- "subscript for scalar variable", /* 122 */
- "invalid array section", /* 123 */
- "substring out of bounds", /* 124 */
- "subscript out of bounds", /* 125 */
- "can't read file", /* 126 */
- "can't write file", /* 127 */
- "'new' file exists", /* 128 */
- "can't append to file", /* 129 */
- "non-positive record number", /* 130 */
- "I/O started while already doing I/O", /* 131 */
- "Temporary file name (TMPDIR?) too long" /* 132 */
+char *F_err[] = {
+ "error in format", /* 100 */
+ "illegal unit number", /* 101 */
+ "formatted io not allowed", /* 102 */
+ "unformatted io not allowed", /* 103 */
+ "direct io not allowed", /* 104 */
+ "sequential io not allowed", /* 105 */
+ "can't backspace file", /* 106 */
+ "null file name", /* 107 */
+ "can't stat file", /* 108 */
+ "unit not connected", /* 109 */
+ "off end of record", /* 110 */
+ "truncation failed in endfile", /* 111 */
+ "incomprehensible list input", /* 112 */
+ "out of free space", /* 113 */
+ "unit not connected", /* 114 */
+ "read unexpected character", /* 115 */
+ "bad logical input field", /* 116 */
+ "bad variable type", /* 117 */
+ "bad namelist name", /* 118 */
+ "variable not in namelist", /* 119 */
+ "no end record", /* 120 */
+ "variable count incorrect", /* 121 */
+ "subscript for scalar variable", /* 122 */
+ "invalid array section", /* 123 */
+ "substring out of bounds", /* 124 */
+ "subscript out of bounds", /* 125 */
+ "can't read file", /* 126 */
+ "can't write file", /* 127 */
+ "'new' file exists", /* 128 */
+ "can't append to file", /* 129 */
+ "non-positive record number", /* 130 */
+ "I/O started while already doing I/O", /* 131 */
+ "Temporary file name (TMPDIR?) too long" /* 132 */
};
#define MAXERR (sizeof(F_err)/sizeof(char *)+100)
-f__canseek(FILE *f) /*SYSDEP*/
+int
+f__canseek (FILE * f) /*SYSDEP*/
{
#ifdef NON_UNIX_STDIO
- return !isatty(fileno(f));
+ return !isatty (fileno (f));
#else
- struct stat x;
+ struct stat x;
- if (fstat(fileno(f),&x) < 0)
- return(0);
+ if (fstat (fileno (f), &x) < 0)
+ return (0);
#ifdef S_IFMT
- switch(x.st_mode & S_IFMT) {
- case S_IFDIR:
- case S_IFREG:
- if(x.st_nlink > 0) /* !pipe */
- return(1);
- else
- return(0);
- case S_IFCHR:
- if(isatty(fileno(f)))
- return(0);
- return(1);
+ switch (x.st_mode & S_IFMT)
+ {
+ case S_IFDIR:
+ case S_IFREG:
+ if (x.st_nlink > 0) /* !pipe */
+ return (1);
+ else
+ return (0);
+ case S_IFCHR:
+ if (isatty (fileno (f)))
+ return (0);
+ return (1);
#ifdef S_IFBLK
- case S_IFBLK:
- return(1);
+ case S_IFBLK:
+ return (1);
#endif
- }
+ }
#else
#ifdef S_ISDIR
- /* POSIX version */
- if (S_ISREG(x.st_mode) || S_ISDIR(x.st_mode)) {
- if(x.st_nlink > 0) /* !pipe */
- return(1);
- else
- return(0);
- }
- if (S_ISCHR(x.st_mode)) {
- if(isatty(fileno(f)))
- return(0);
- return(1);
- }
- if (S_ISBLK(x.st_mode))
- return(1);
+ /* POSIX version */
+ if (S_ISREG (x.st_mode) || S_ISDIR (x.st_mode))
+ {
+ if (x.st_nlink > 0) /* !pipe */
+ return (1);
+ else
+ return (0);
+ }
+ if (S_ISCHR (x.st_mode))
+ {
+ if (isatty (fileno (f)))
+ return (0);
+ return (1);
+ }
+ if (S_ISBLK (x.st_mode))
+ return (1);
#else
- Help! How does fstat work on this system?
+ Help ! How does fstat work on this system ?
#endif
#endif
- return(0); /* who knows what it is? */
+ return (0); /* who knows what it is? */
#endif
}
- void
-f__fatal(int n, char *s)
+void
+f__fatal (int n, char *s)
{
- static int dead = 0;
+ static int dead = 0;
- if(n<100 && n>=0) perror(s); /*SYSDEP*/
- else if(n >= (int)MAXERR || n < -1)
- { fprintf(stderr,"%s: illegal error number %d\n",s,n);
- }
- else if(n == -1) fprintf(stderr,"%s: end of file\n",s);
- else
- fprintf(stderr,"%s: %s\n",s,F_err[n-100]);
- if (dead) {
- fprintf (stderr, "(libf2c f__fatal already called, aborting.)");
- abort();
+ if (n < 100 && n >= 0)
+ perror (s);
+ /*SYSDEP*/
+ else if (n >= (int) MAXERR || n < -1)
+ {
+ fprintf (stderr, "%s: illegal error number %d\n", s, n);
+ }
+ else if (n == -1)
+ fprintf (stderr, "%s: end of file\n", s);
+ else
+ fprintf (stderr, "%s: %s\n", s, F_err[n - 100]);
+ if (dead)
+ {
+ fprintf (stderr, "(libf2c f__fatal already called, aborting.)");
+ abort ();
+ }
+ dead = 1;
+ if (f__init & 1)
+ {
+ if (f__curunit)
+ {
+ fprintf (stderr, "apparent state: unit %d ",
+ (int) (f__curunit - f__units));
+ fprintf (stderr, f__curunit->ufnm ? "named %s\n" : "(unnamed)\n",
+ f__curunit->ufnm);
}
- dead = 1;
- if (f__init & 1) {
- if (f__curunit) {
- fprintf(stderr,"apparent state: unit %d ",
- (int)(f__curunit-f__units));
- fprintf(stderr, f__curunit->ufnm ? "named %s\n" : "(unnamed)\n",
- f__curunit->ufnm);
- }
- else
- fprintf(stderr,"apparent state: internal I/O\n");
- if (f__fmtbuf)
- fprintf(stderr,"last format: %.*s\n",f__fmtlen,f__fmtbuf);
- fprintf(stderr,"lately %s %s %s %s",f__reading?"reading":"writing",
- f__sequential?"sequential":"direct",f__formatted?"formatted":"unformatted",
- f__external?"external":"internal");
- }
- f__init &= ~2; /* No longer doing I/O (no more user code to be called). */
- sig_die(" IO", 1);
+ else
+ fprintf (stderr, "apparent state: internal I/O\n");
+ if (f__fmtbuf)
+ fprintf (stderr, "last format: %.*s\n", f__fmtlen, f__fmtbuf);
+ fprintf (stderr, "lately %s %s %s %s",
+ f__reading ? "reading" : "writing",
+ f__sequential ? "sequential" : "direct",
+ f__formatted ? "formatted" : "unformatted",
+ f__external ? "external" : "internal");
+ }
+ f__init &= ~2; /* No longer doing I/O (no more user code to be called). */
+ sig_die (" IO", 1);
}
+
/*initialization routine*/
void
-f_init(void)
-{ unit *p;
+f_init (void)
+{
+ unit *p;
- if (f__init & 2)
- f__fatal (131, "I/O recursion");
- f__init = 1;
- p= &f__units[0];
- p->ufd=stderr;
- p->useek=f__canseek(stderr);
- p->ufmt=1;
- p->uwrt=1;
- p = &f__units[5];
- p->ufd=stdin;
- p->useek=f__canseek(stdin);
- p->ufmt=1;
- p->uwrt=0;
- p= &f__units[6];
- p->ufd=stdout;
- p->useek=f__canseek(stdout);
- p->ufmt=1;
- p->uwrt=1;
+ if (f__init & 2)
+ f__fatal (131, "I/O recursion");
+ f__init = 1;
+ p = &f__units[0];
+ p->ufd = stderr;
+ p->useek = f__canseek (stderr);
+ p->ufmt = 1;
+ p->uwrt = 1;
+ p = &f__units[5];
+ p->ufd = stdin;
+ p->useek = f__canseek (stdin);
+ p->ufmt = 1;
+ p->uwrt = 0;
+ p = &f__units[6];
+ p->ufd = stdout;
+ p->useek = f__canseek (stdout);
+ p->ufmt = 1;
+ p->uwrt = 1;
}
-f__nowreading(unit *x)
+
+int
+f__nowreading (unit * x)
{
- off_t loc;
- int ufmt, urw;
- extern char *f__r_mode[], *f__w_mode[];
+ off_t loc;
+ int ufmt, urw;
+ extern char *f__r_mode[], *f__w_mode[];
- if (x->urw & 1)
- goto done;
- if (!x->ufnm)
- goto cantread;
- ufmt = x->url ? 0 : x->ufmt;
- loc = FTELL(x->ufd);
- urw = 3;
- if (!freopen(x->ufnm, f__w_mode[ufmt|2], x->ufd)) {
- urw = 1;
- if(!freopen(x->ufnm, f__r_mode[ufmt], x->ufd)) {
- cantread:
- errno = 126;
- return 1;
- }
- }
- FSEEK(x->ufd,loc,SEEK_SET);
- x->urw = urw;
- done:
- x->uwrt = 0;
- return 0;
+ if (x->urw & 1)
+ goto done;
+ if (!x->ufnm)
+ goto cantread;
+ ufmt = x->url ? 0 : x->ufmt;
+ loc = FTELL (x->ufd);
+ urw = 3;
+ if (!freopen (x->ufnm, f__w_mode[ufmt | 2], x->ufd))
+ {
+ urw = 1;
+ if (!freopen (x->ufnm, f__r_mode[ufmt], x->ufd))
+ {
+ cantread:
+ errno = 126;
+ return 1;
+ }
+ }
+ FSEEK (x->ufd, loc, SEEK_SET);
+ x->urw = urw;
+done:
+ x->uwrt = 0;
+ return 0;
}
-f__nowwriting(unit *x)
+
+int
+f__nowwriting (unit * x)
{
- off_t loc;
- int ufmt;
- extern char *f__w_mode[];
+ off_t loc;
+ int ufmt;
+ extern char *f__w_mode[];
- if (x->urw & 2)
- goto done;
- if (!x->ufnm)
- goto cantwrite;
- ufmt = x->url ? 0 : x->ufmt;
- if (x->uwrt == 3) { /* just did write, rewind */
- if (!(f__cf = x->ufd =
- freopen(x->ufnm,f__w_mode[ufmt],x->ufd)))
- goto cantwrite;
- x->urw = 2;
- }
- else {
- loc=FTELL(x->ufd);
- if (!(f__cf = x->ufd =
- freopen(x->ufnm, f__w_mode[ufmt |= 2], x->ufd)))
- {
- x->ufd = NULL;
- cantwrite:
- errno = 127;
- return(1);
- }
- x->urw = 3;
- FSEEK(x->ufd,loc,SEEK_SET);
- }
- done:
- x->uwrt = 1;
- return 0;
+ if (x->urw & 2)
+ goto done;
+ if (!x->ufnm)
+ goto cantwrite;
+ ufmt = x->url ? 0 : x->ufmt;
+ if (x->uwrt == 3)
+ { /* just did write, rewind */
+ if (!(f__cf = x->ufd = freopen (x->ufnm, f__w_mode[ufmt], x->ufd)))
+ goto cantwrite;
+ x->urw = 2;
+ }
+ else
+ {
+ loc = FTELL (x->ufd);
+ if (!(f__cf = x->ufd = freopen (x->ufnm, f__w_mode[ufmt |= 2], x->ufd)))
+ {
+ x->ufd = NULL;
+ cantwrite:
+ errno = 127;
+ return (1);
+ }
+ x->urw = 3;
+ FSEEK (x->ufd, loc, SEEK_SET);
+ }
+done:
+ x->uwrt = 1;
+ return 0;
}
- int
-err__fl(int f, int m, char *s)
+int
+err__fl (int f, int m, char *s)
{
- if (!f)
- f__fatal(m, s);
- if (f__doend)
- (*f__doend)();
- f__init &= ~2;
- return errno = m;
- }
+ if (!f)
+ f__fatal (m, s);
+ if (f__doend)
+ (*f__doend) ();
+ f__init &= ~2;
+ return errno = m;
+}
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