walkero
/
physfs
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Seeking backwards in ZIP_seek() works now.

This commit is contained in:
Ryan C. Gordon 2002-07-17 16:05:39 +00:00
parent c7f3a2b1ae
commit f558dcfe4a
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
archivers/zip.c
View File

@ -351,6 +351,9 @@ static int ZIP_seek(FileHandle *handle, PHYSFS_uint64 offset)
if (zlib_err(inflateInit2(&str, -MAX_WBITS)) != Z_OK) if (zlib_err(inflateInit2(&str, -MAX_WBITS)) != Z_OK)
return(0); return(0);
if (!__PHYSFS_platformSeek(in, entry->offset))
return(0);
inflateEnd(&finfo->stream); inflateEnd(&finfo->stream);
memcpy(&finfo->stream, &str, sizeof (z_stream)); memcpy(&finfo->stream, &str, sizeof (z_stream));
finfo->uncompressed_position = finfo->compressed_position = 0; finfo->uncompressed_position = finfo->compressed_position = 0;
@ -1086,7 +1089,7 @@ static int ZIP_exists(DirHandle *h, const char *name)
/* if it's a symlink, then we ran into a possible symlink loop. */ /* if it's a symlink, then we ran into a possible symlink loop. */
is_sym = ( ((ZIPinfo *)(h->opaque))->entries[pos].symlink != NULL ); is_sym = ( ((ZIPinfo *)(h->opaque))->entries[pos].symlink != NULL );
BAIL_IF_MACRO(is_sym, ERR_TOO_MANY_SYMLINKS, 0); BAIL_IF_MACRO(is_sym, ERR_SYMLINK_LOOP, 0);
return(1); return(1);
} /* ZIP_exists */ } /* ZIP_exists */
@ -1103,7 +1106,7 @@ static PHYSFS_sint64 ZIP_getLastModTime(DirHandle *h, const char *name)
entry = &zi->entries[pos]; entry = &zi->entries[pos];
/* if it's a symlink, then we ran into a possible symlink loop. */ /* if it's a symlink, then we ran into a possible symlink loop. */
BAIL_IF_MACRO(entry->symlink != NULL, ERR_TOO_MANY_SYMLINKS, 0); BAIL_IF_MACRO(entry->symlink != NULL, ERR_SYMLINK_LOOP, 0);
return(entry->last_mod_time); return(entry->last_mod_time);
} /* ZIP_getLastModTime */ } /* ZIP_getLastModTime */
@ -1119,7 +1122,7 @@ static int ZIP_isDirectory(DirHandle *h, const char *name)
/* if it's a symlink, then we ran into a possible symlink loop. */ /* if it's a symlink, then we ran into a possible symlink loop. */
is_sym = ( ((ZIPinfo *)(h->opaque))->entries[pos].symlink != NULL ); is_sym = ( ((ZIPinfo *)(h->opaque))->entries[pos].symlink != NULL );
BAIL_IF_MACRO(is_sym, ERR_TOO_MANY_SYMLINKS, 0); BAIL_IF_MACRO(is_sym, ERR_SYMLINK_LOOP, 0);
dlen = strlen(name); dlen = strlen(name);
@ -1147,7 +1150,7 @@ static FileHandle *ZIP_openRead(DirHandle *h, const char *filename)
BAIL_IF_MACRO(pos == -1, ERR_NO_SUCH_FILE, NULL); BAIL_IF_MACRO(pos == -1, ERR_NO_SUCH_FILE, NULL);
/* if it's a symlink, then we ran into a possible symlink loop. */ /* if it's a symlink, then we ran into a possible symlink loop. */
BAIL_IF_MACRO(zi->entries[pos].symlink != NULL, ERR_TOO_MANY_SYMLINKS, 0); BAIL_IF_MACRO(zi->entries[pos].symlink != NULL, ERR_SYMLINK_LOOP, 0);
in = __PHYSFS_platformOpenRead(zi->archiveName); in = __PHYSFS_platformOpenRead(zi->archiveName);
BAIL_IF_MACRO(in == NULL, ERR_IO_ERROR, NULL); BAIL_IF_MACRO(in == NULL, ERR_IO_ERROR, NULL);