int n;
if (argc < 1 || argc > 2) {
- fprintf(stderr, "usage: %s [file[.gz]]\n", argv[0]);
- exit(EXIT_FAILURE);
+ fprintf(stderr, "usage: %s [file[.gz]]\n", argv[0]);
+ exit(EXIT_FAILURE);
}
strcpy(cmd, "gzip -dc "); /* use "gzip -c" for zwrite */
if (argc == 2) {
- strncat(cmd, argv[1], sizeof(cmd)-strlen(cmd));
+ strncat(cmd, argv[1], sizeof(cmd)-strlen(cmd));
}
infile = popen(cmd, "r"); /* use "w" for zwrite */
if (infile == NULL) {
- fprintf(stderr, "%s: popen('%s', 'r') failed\n", argv[0], cmd);
- exit(EXIT_FAILURE);
+ fprintf(stderr, "%s: popen('%s', 'r') failed\n", argv[0], cmd);
+ exit(EXIT_FAILURE);
}
/* Read one byte using getc: */
n = getc(infile);
if (n == EOF) {
- pclose(infile);
- exit(EXIT_SUCCESS);
+ pclose(infile);
+ exit(EXIT_SUCCESS);
}
putchar(n);
/* Read the rest using fread: */
for (;;) {
- n = fread(buf, 1, BUFSIZ, infile);
- if (n <= 0) break;
- fwrite(buf, 1, n, stdout);
+ n = fread(buf, 1, BUFSIZ, infile);
+ if (n <= 0) break;
+ fwrite(buf, 1, n, stdout);
}
if (pclose(infile) != 0) {
- fprintf(stderr, "%s: pclose failed\n", argv[0]);
- exit(EXIT_FAILURE);
+ fprintf(stderr, "%s: pclose failed\n", argv[0]);
+ exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
return 0; /* just to make compiler happy */