zlib/test/minigzip.c

9  * full-featured gzip. No attempt is made to deal with file systems
12  * real thing. On MSDOS, use only on file names without extension
38 #  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
40 #  define SET_BINARY_MODE(file)
54 #  define fileno(file) file->__file
163     FILE *file;
192     gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
194     if (gz->file == NULL) {
225         fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
244         got = fread(in, 1, 1, gz->file);
275             fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
281     fclose(gz->file);
305 /* Try compressing the input file at once using mmap. Return Z_OK if
312     caddr_t buf;    /* mmap'ed buffer for the entire input file */
313     off_t buf_len;  /* length of the input file */
316     /* Determine the size of the file, needed for mmap: */
325     /* Compress the whole file at once: */
390  * Compress the given file: create a corresponding .gz file and remove the
393 static void file_compress(char *file, char *mode) {
398     if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
404     snprintf(outfile, sizeof(outfile), "%s%s", file, GZ_SUFFIX);
406     strcpy(outfile, file);
410     in = fopen(file, "rb");
412         perror(file);
422     unlink(file);
427  * Uncompress the given file and remove the original.
429 static void file_uncompress(char *file) {
434     z_size_t len = strlen(file);
442     snprintf(buf, sizeof(buf), "%s", file);
444     strcpy(buf, file);
447     if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
448         infile = file;
452         outfile = file;
467         perror(file);
490     gzFile file;
536             file = gzdopen(fileno(stdin), "rb");
537             if (file == NULL) error("can't gzdopen stdin");
538             gz_uncompress(file, stdout);
540             file = gzdopen(fileno(stdout), outmode);
541             if (file == NULL) error("can't gzdopen stdout");
542             gz_compress(stdin, file);
551                     file = gzopen(*argv, "rb");
552                     if (file == NULL)
555                         gz_uncompress(file, stdout);
566                         file = gzdopen(fileno(stdout), outmode);
567                         if (file == NULL) error("can't gzdopen stdout");
569                         gz_compress(in, file);