contrib/zlib/gzlib.c

70 /* Reset gzip file state */
74         state->eof = 0;             /* not at end of file */
86 /* Open a gzip file either by name or file descriptor. */
179         state->direct = 1;      /* for empty file */
232     /* open the file with the appropriate flags (or just use fd) */
296 int ZEXPORT gzbuffer(gzFile file, unsigned size) {
300     if (file == NULL)
302     state = (gz_statep)file;
320 int ZEXPORT gzrewind(gzFile file) {
324     if (file == NULL)
326     state = (gz_statep)file;
341 z_off64_t ZEXPORT gzseek64(gzFile file, z_off64_t offset, int whence) {
347     if (file == NULL)
349     state = (gz_statep)file;
389         if (offset < 0)                     /* before start of file! */
391         if (gzrewind(file) == -1)           /* rewind, then skip to offset */
414 z_off_t ZEXPORT gzseek(gzFile file, z_off_t offset, int whence) {
417     ret = gzseek64(file, (z_off64_t)offset, whence);
422 z_off64_t ZEXPORT gztell64(gzFile file) {
426     if (file == NULL)
428     state = (gz_statep)file;
437 z_off_t ZEXPORT gztell(gzFile file) {
440     ret = gztell64(file);
445 z_off64_t ZEXPORT gzoffset64(gzFile file) {
450     if (file == NULL)
452     state = (gz_statep)file;
456     /* compute and return effective offset in file */
466 z_off_t ZEXPORT gzoffset(gzFile file) {
469     ret = gzoffset64(file);
474 int ZEXPORT gzeof(gzFile file) {
478     if (file == NULL)
480     state = (gz_statep)file;
484     /* return end-of-file state */
489 const char * ZEXPORT gzerror(gzFile file, int *errnum) {
493     if (file == NULL)
495     state = (gz_statep)file;
507 void ZEXPORT gzclearerr(gzFile file) {
511     if (file == NULL)
513     state = (gz_statep)file;
517     /* clear error and end-of-file */