#endif
static char *get_ptr;
-#define GET_BYTE() (*get_ptr++ & 0xff)
+static char *start_ptr;
+static off_t storage_size;
+#define setup_get(PTR, SIZE) (start_ptr = get_ptr = (PTR), storage_size = (SIZE))
#if DUMP_HEADER
-static char *start_ptr;
-#define setup_get(PTR) (start_ptr = get_ptr = (PTR))
#define get_byte() dump_get_byte()
#define skip_bytes(len) dump_skip_bytes(len)
#else
-#define setup_get(PTR) (get_ptr = (PTR))
-#define get_byte() GET_BYTE()
-#define skip_bytes(len) (get_ptr += (len))
+#define get_byte() _get_byte()
+#define skip_bytes(len) _skip_bytes(len)
#endif
#define put_ptr get_ptr
#define setup_put(PTR) (put_ptr = (PTR))
int len;
{
int sum = 0;
+ unsigned char *pc = (unsigned char*)p;
- while (len--) sum += *(unsigned char*)p++;
+ while (len--) sum += *pc++;
return sum & 0xff;
}
+static void
+_skip_bytes(len)
+{
+ if (len < 0) {
+ error("Invalid header: %d", len);
+ exit(1);
+ }
+ get_ptr += len;
+}
+
+static int
+_get_byte()
+{
+ if (get_ptr < start_ptr || get_ptr - start_ptr >= storage_size) {
+ error("Invalid header");
+ exit(1);
+ }
+
+ return (*get_ptr++ & 0xff);
+}
+
#if DUMP_HEADER
static int
dump_get_byte()
if (verbose_listing && verbose > 1)
printf("%02d %2d: ", get_ptr - start_ptr, 1);
- c = GET_BYTE();
+ c = _get_byte();
if (verbose_listing && verbose > 1) {
if (isprint(c))
printf("%d(0x%02x) '%c'\n", c, c, c);
if (len == 0) return;
if (verbose_listing && verbose > 1) {
printf("%02d %2d: ", get_ptr - start_ptr, len);
+ if (len < 0) {
+ error("Invalid header: %d", len);
+ exit(1);
+ }
while (len--)
- printf("0x%02x ", GET_BYTE());
+ printf("0x%02x ", _get_byte());
printf("... ignored\n");
}
else
- get_ptr += len;
+ _skip_bytes(len);
}
#endif
if (verbose_listing && verbose > 1)
printf("%02d %2d: ", get_ptr - start_ptr, 2);
#endif
- b0 = GET_BYTE();
- b1 = GET_BYTE();
+ b0 = _get_byte();
+ b1 = _get_byte();
w = (b1 << 8) + b0;
#if DUMP_HEADER
if (verbose_listing && verbose > 1)
if (verbose_listing && verbose > 1)
printf("%02d %2d: ", get_ptr - start_ptr, 4);
#endif
- b0 = GET_BYTE();
- b1 = GET_BYTE();
- b2 = GET_BYTE();
- b3 = GET_BYTE();
+ b0 = _get_byte();
+ b1 = _get_byte();
+ b2 = _get_byte();
+ b3 = _get_byte();
l = (b3 << 24) + (b2 << 16) + (b1 << 8) + b0;
#if DUMP_HEADER
if (verbose_listing && verbose > 1)
}
static void
-put_longword(v)
- long v;
+put_longword(long v)
{
put_byte(v);
put_byte(v >> 8);
put_byte(v >> 24);
}
+#ifdef HAVE_UINT64_T
+static uint64_t
+get_longlongword()
+{
+ uint64_t b0, b1, b2, b3, b4, b5, b6, b7;
+ uint64_t l;
+
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1)
+ printf("%02d %2d: ", get_ptr - start_ptr, 4);
+#endif
+ b0 = _get_byte();
+ b1 = _get_byte();
+ b2 = _get_byte();
+ b3 = _get_byte();
+ b4 = _get_byte();
+ b5 = _get_byte();
+ b6 = _get_byte();
+ b7 = _get_byte();
+
+ l = (b7 << 24) + (b6 << 16) + (b5 << 8) + b4;
+ l <<= 32;
+ l |= (b3 << 24) + (b2 << 16) + (b1 << 8) + b0;
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1)
+ printf("%lld(%#016llx)\n", l, l);
+#endif
+ return l;
+}
+
+static void
+put_longlongword(uint64_t v)
+{
+ put_byte(v);
+ put_byte(v >> 8);
+ put_byte(v >> 16);
+ put_byte(v >> 24);
+ put_byte(v >> 32);
+ put_byte(v >> 40);
+ put_byte(v >> 48);
+ put_byte(v >> 56);
+}
+#endif
+
static int
get_bytes(buf, len, size)
char *buf;
#if DUMP_HEADER
if (verbose_listing && verbose > 1)
printf("%02d %2d: \"", get_ptr - start_ptr, len);
+ if (len < 0) {
+ error("Invalid header: %d", len);
+ exit(1);
+ }
- for (i = 0; i < len; i++) {
- if (i < size) buf[i] = get_ptr[i];
+ for (i = 0; i < len && i < size; i++) {
+ buf[i] = get_ptr[i];
if (verbose_listing && verbose > 1) {
if (isprint(buf[i]))
if (verbose_listing && verbose > 1)
printf("\"\n");
#else
+ if (len < 0) {
+ error("Invalid header: %d", len);
+ exit(1);
+ }
for (i = 0; i < len && i < size; i++)
buf[i] = get_ptr[i];
#endif
to_code_save = CODE_CAP;
to_code = CODE_SJIS;
}
+#endif
+ /* special case: if `name' has small lettter, not convert case. */
+ if (from_code == CODE_SJIS && case_to == TO_LOWER) {
+ for (i = 0; i < len; i++) {
+#ifdef MULTIBYTE_FILENAME
+ if (SJIS_FIRST_P(name[i]) && SJIS_SECOND_P(name[i+1]))
+ i++;
+ else
+#endif
+ if (islower(name[i])) {
+ case_to = NONE;
+ break;
+ }
+ }
+ }
+
+#ifdef MULTIBYTE_FILENAME
if (from_code == CODE_SJIS && to_code == CODE_UTF8) {
- for (i = 0; i < len; i++)
- /* FIXME: provisionally fix for the Mac OS CoreFoundation */
- if ((unsigned char)name[i] == LHA_PATHSEP) name[i] = '/';
+ for (i = 0; i < len; i++) {
+ if (SJIS_FIRST_P(name[i]) && SJIS_SECOND_P(name[i+1]))
+ i++;
+ else {
+ /* FIXME: provisionally fix for the Mac OS CoreFoundation */
+ if (strchr(from_delim, name[i]))
+ name[i] = '/';
+ }
+ }
sjis_to_utf8(tmp, name, sizeof(tmp));
strncpy(name, tmp, size);
name[size-1] = 0;
}
#endif
- /* special case: if `name' has small lettter, not convert case. */
- if (from_code == CODE_SJIS && case_to == TO_LOWER) {
- for (i = 0; i < len; i++) {
-#ifdef MULTIBYTE_FILENAME
- if (SJIS_FIRST_P(name[i]) && SJIS_SECOND_P(name[i+1]))
- i++;
- else
-#endif
- if (islower(name[i])) {
- case_to = NONE;
- break;
- }
- }
- }
-
for (i = 0; i < len; i ++) {
#ifdef MULTIBYTE_FILENAME
if (from_code == CODE_EUC &&
name_length = strlen(hdr->name);
while (header_size) {
- setup_get(data);
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1)
+ printf("---\n");
+#endif
+ setup_get(data, sizeof(data));
if (sizeof(data) < header_size) {
error("header size (%ld) too large.", header_size);
exit(1);
ext_type = get_byte();
switch (ext_type) {
case 0:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < header crc >\n");
+#endif
/* header crc (CRC-16) */
hdr->header_crc = get_word();
/* clear buffer for CRC calculation. */
skip_bytes(header_size - n - 2);
break;
case 1:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < filename >\n");
+#endif
/* filename */
name_length =
get_bytes(hdr->name, header_size-n, sizeof(hdr->name)-1);
hdr->name[name_length] = 0;
break;
case 2:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < directory >\n");
+#endif
/* directory */
dir_length = get_bytes(dirname, header_size-n, sizeof(dirname)-1);
dirname[dir_length] = 0;
break;
case 0x40:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < MS-DOS attribute >\n");
+#endif
/* MS-DOS attribute */
hdr->attribute = get_word();
break;
case 0x41:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < Windows time stamp (FILETIME) >\n");
+#endif
/* Windows time stamp (FILETIME structure) */
/* it is time in 100 nano seconds since 1601-01-01 00:00:00 */
skip_bytes(8); /* last access time is ignored */
break;
+ case 0x42:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < 64bits file size header >\n");
+#endif
+#ifdef HAVE_UINT64_T
+ /* 64bits file size header (UNLHA32 extension) */
+ hdr->packed_size = get_longlongword();
+ hdr->original_size = get_longlongword();
+#else
+ skip_bytes(8);
+ skip_bytes(8);
+#endif
+
+ break;
case 0x50:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < UNIX permission >\n");
+#endif
/* UNIX permission */
hdr->unix_mode = get_word();
break;
case 0x51:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < UNIX gid and uid >\n");
+#endif
/* UNIX gid and uid */
hdr->unix_gid = get_word();
hdr->unix_uid = get_word();
break;
case 0x52:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < UNIX group name >\n");
+#endif
/* UNIX group name */
i = get_bytes(hdr->group, header_size-n, sizeof(hdr->group)-1);
hdr->group[i] = '\0';
break;
case 0x53:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < UNIX user name >\n");
+#endif
/* UNIX user name */
i = get_bytes(hdr->user, header_size-n, sizeof(hdr->user)-1);
hdr->user[i] = '\0';
break;
case 0x54:
+#if DUMP_HEADER
+ if (verbose_listing && verbose > 1) printf(" < UNIX last modifed time (time_t) >\n");
+#endif
/* UNIX last modified time */
hdr->unix_last_modified_stamp = (time_t) get_longword();
break;
char *data;
{
size_t header_size;
+ ssize_t remain_size;
ssize_t extend_size;
int checksum;
int name_length;
hdr->header_size = header_size = get_byte();
checksum = get_byte();
- if (fread(data + COMMON_HEADER_SIZE,
- header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
+ /* The data variable has been already read as COMMON_HEADER_SIZE bytes.
+ So we must read the remaining header size by the header_size. */
+ remain_size = header_size + 2 - COMMON_HEADER_SIZE;
+ if (remain_size <= 0) {
+ error("Invalid header size (LHarc file ?)");
+ return FALSE;
+ }
+ if (fread(data + COMMON_HEADER_SIZE, remain_size, 1, fp) == 0) {
error("Invalid header (LHarc file ?)");
return FALSE; /* finish */
}
}
get_bytes(hdr->method, 5, sizeof(hdr->method));
- hdr->packed_size = get_longword();
- hdr->original_size = get_longword();
+ hdr->packed_size = (unsigned long)get_longword();
+ hdr->original_size = (unsigned long)get_longword();
hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
hdr->attribute = get_byte(); /* MS-DOS attribute */
hdr->header_level = get_byte();
char *data;
{
size_t header_size;
+ ssize_t remain_size;
ssize_t extend_size;
int checksum;
int name_length;
hdr->header_size = header_size = get_byte();
checksum = get_byte();
- if (fread(data + COMMON_HEADER_SIZE,
- header_size + 2 - COMMON_HEADER_SIZE, 1, fp) == 0) {
+ /* The data variable has been already read as COMMON_HEADER_SIZE bytes.
+ So we must read the remaining header size by the header_size. */
+ remain_size = header_size + 2 - COMMON_HEADER_SIZE;
+ if (remain_size <= 0) {
+ error("Invalid header size (LHarc file ?)");
+ return FALSE;
+ }
+ if (fread(data + COMMON_HEADER_SIZE, remain_size, 1, fp) == 0) {
error("Invalid header (LHarc file ?)");
return FALSE; /* finish */
}
}
get_bytes(hdr->method, 5, sizeof(hdr->method));
- hdr->packed_size = get_longword(); /* skip size */
- hdr->original_size = get_longword();
+ hdr->packed_size = (unsigned long)get_longword(); /* skip size */
+ hdr->original_size = (unsigned long)get_longword();
hdr->unix_last_modified_stamp = generic_to_unix_stamp(get_longword());
hdr->attribute = get_byte(); /* 0x20 fixed */
hdr->header_level = get_byte();
char *data;
{
size_t header_size;
+ ssize_t remain_size;
ssize_t extend_size;
int padding;
unsigned int hcrc;
hdr->size_field_length = 2; /* in bytes */
hdr->header_size = header_size = get_word();
+ /* The data variable has been already read as COMMON_HEADER_SIZE bytes.
+ So we must read the remaining header size without ext-header. */
+ remain_size = header_size - I_LEVEL2_HEADER_SIZE;
+ if (remain_size < 0) {
+ error("Invalid header size (LHarc file ?)");
+ return FALSE;
+ }
if (fread(data + COMMON_HEADER_SIZE,
I_LEVEL2_HEADER_SIZE - COMMON_HEADER_SIZE, 1, fp) == 0) {
error("Invalid header (LHarc file ?)");
}
get_bytes(hdr->method, 5, sizeof(hdr->method));
- hdr->packed_size = get_longword();
- hdr->original_size = get_longword();
+ hdr->packed_size = (unsigned long)get_longword();
+ hdr->original_size = (unsigned long)get_longword();
hdr->unix_last_modified_stamp = get_longword();
hdr->attribute = get_byte(); /* reserved */
hdr->header_level = get_byte();
return FALSE;
padding = header_size - I_LEVEL2_HEADER_SIZE - extend_size;
- while (padding--) /* padding should be 0 or 1 */
+ /* padding should be 0 or 1 */
+ if (padding != 0 && padding != 1) {
+ error("Invalid header size (padding: %d)", padding);
+ return FALSE;
+ }
+ while (padding--)
hcrc = UPDATE_CRC(hcrc, fgetc(fp));
if (hdr->header_crc != hcrc)
char *data;
{
size_t header_size;
+ ssize_t remain_size;
ssize_t extend_size;
int padding;
unsigned int hcrc;
}
get_bytes(hdr->method, 5, sizeof(hdr->method));
- hdr->packed_size = get_longword();
- hdr->original_size = get_longword();
+ hdr->packed_size = (unsigned long)get_longword();
+ hdr->original_size = (unsigned long)get_longword();
hdr->unix_last_modified_stamp = get_longword();
hdr->attribute = get_byte(); /* reserved */
hdr->header_level = get_byte();
hdr->crc = get_word();
hdr->extend_type = get_byte();
hdr->header_size = header_size = get_longword();
+ remain_size = header_size - I_LEVEL3_HEADER_SIZE;
+ if (remain_size < 0) {
+ error("Invalid header size (LHarc file ?)");
+ return FALSE;
+ }
extend_size = get_longword();
INITIALIZE_CRC(hcrc);
if (extend_size == -1)
return FALSE;
- padding = header_size - I_LEVEL3_HEADER_SIZE - extend_size;
- while (padding--) /* padding should be 0 */
- hcrc = UPDATE_CRC(hcrc, fgetc(fp));
+ padding = remain_size - extend_size;
+ /* padding should be 0 */
+ if (padding != 0) {
+ error("Invalid header size (padding: %d)", padding);
+ return FALSE;
+ }
if (hdr->header_crc != hcrc)
error("header CRC error");
memset(hdr, 0, sizeof(LzHeader));
- setup_get(data);
+ setup_get(data, sizeof(data));
if ((end_mark = getc(fp)) == EOF || end_mark == 0) {
return FALSE; /* finish */
n = fread(buffer, 1, sizeof(buffer), fp);
for (p = buffer; p < buffer + n; p++) {
- if (! (p[I_METHOD]=='-' && p[I_METHOD+1]=='l' && p[I_METHOD+4]=='-'))
+ if (! (p[I_METHOD]=='-' &&
+ (p[I_METHOD+1]=='l' || p[I_METHOD+1]=='p') &&
+ p[I_METHOD+4]=='-'))
continue;
- /* found "-l??-" keyword (as METHOD type string) */
+ /* found "-[lp]??-" keyword (as METHOD type string) */
/* level 0 or 1 header */
if ((p[I_HEADER_LEVEL] == 0 || p[I_HEADER_LEVEL] == 1)
return i;
}
-/* remove leading "xxx/../" and "./" */
+/*
+ canonicalize path
+
+ remove leading "xxx/../"
+ remove "./", "././", "././ ... ./"
+ remove duplicated "/"
+*/
static int
-remove_dots(char *newpath, char *path, size_t size)
+canon_path(char *newpath, char *path, size_t size)
{
- int len;
char *p = newpath;
path = remove_leading_dots(path);
if (size <= 1)
break;
}
+
+ /* remove duplicated '/' */
+ while (*path == '/') path++;
}
/* When newpath is empty, set "." */
hdr->attribute = GENERIC_ATTRIBUTE;
hdr->header_level = header_level;
- len = remove_dots(hdr->name, name, sizeof(hdr->name));
+ len = canon_path(hdr->name, name, sizeof(hdr->name));
hdr->crc = 0x0000;
hdr->extend_type = EXTEND_UNIX;
}
/*
- * SJIS <-> EUC ÊÑ´¹´Ø¿ô
- * ¡ÖÆüËܸì¾ðÊó½èÍý¡× ¥½¥Õ¥È¥Ð¥ó¥¯(³ô)
- * ¤è¤êÈ´¿è(by Koji Arai)
+ * SJIS <-> EUC 変換関数
+ * 「日本語情報処理」 ソフトバンク(株)
+ * より抜粋(by Koji Arai)
*/
void
euc2sjis(int *p1, int *p2)
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