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compress.c (75937) compress.c (80588)
1/*
2 * compress routines:
3 * zmagic() - returns 0 if not recognized, uncompresses and prints
4 * information if recognized
5 * uncompress(method, old, n, newch) - uncompress old into new,
6 * using method, return sizeof new
7 */
8#include "file.h"
9#include <stdio.h>
10#include <stdlib.h>
11#ifdef HAVE_UNISTD_H
12#include <unistd.h>
13#endif
14#include <string.h>
15#ifdef HAVE_SYS_WAIT_H
16#include <sys/wait.h>
17#endif
18#ifndef lint
1/*
2 * compress routines:
3 * zmagic() - returns 0 if not recognized, uncompresses and prints
4 * information if recognized
5 * uncompress(method, old, n, newch) - uncompress old into new,
6 * using method, return sizeof new
7 */
8#include "file.h"
9#include <stdio.h>
10#include <stdlib.h>
11#ifdef HAVE_UNISTD_H
12#include <unistd.h>
13#endif
14#include <string.h>
15#ifdef HAVE_SYS_WAIT_H
16#include <sys/wait.h>
17#endif
18#ifndef lint
19FILE_RCSID("@(#)$Id: compress.c,v 1.19 2001/03/20 04:22:02 christos Exp $")
19FILE_RCSID("@(#)$Id: compress.c,v 1.20 2001/07/22 21:04:15 christos Exp $")
20#endif
21
22
23static struct {
24 const char *magic;
25 int maglen;
26 const char *const argv[3];
27 int silent;
28} compr[] = {
29 { "\037\235", 2, { "gzip", "-cdq", NULL }, 1 }, /* compressed */
30 /* Uncompress can get stuck; so use gzip first if we have it
31 * Idea from Damien Clark, thanks! */
32 { "\037\235", 2, { "uncompress", "-c", NULL }, 1 }, /* compressed */
33 { "\037\213", 2, { "gzip", "-cdq", NULL }, 1 }, /* gzipped */
34 { "\037\236", 2, { "gzip", "-cdq", NULL }, 1 }, /* frozen */
35 { "\037\240", 2, { "gzip", "-cdq", NULL }, 1 }, /* SCO LZH */
36 /* the standard pack utilities do not accept standard input */
37 { "\037\036", 2, { "gzip", "-cdq", NULL }, 0 }, /* packed */
20#endif
21
22
23static struct {
24 const char *magic;
25 int maglen;
26 const char *const argv[3];
27 int silent;
28} compr[] = {
29 { "\037\235", 2, { "gzip", "-cdq", NULL }, 1 }, /* compressed */
30 /* Uncompress can get stuck; so use gzip first if we have it
31 * Idea from Damien Clark, thanks! */
32 { "\037\235", 2, { "uncompress", "-c", NULL }, 1 }, /* compressed */
33 { "\037\213", 2, { "gzip", "-cdq", NULL }, 1 }, /* gzipped */
34 { "\037\236", 2, { "gzip", "-cdq", NULL }, 1 }, /* frozen */
35 { "\037\240", 2, { "gzip", "-cdq", NULL }, 1 }, /* SCO LZH */
36 /* the standard pack utilities do not accept standard input */
37 { "\037\036", 2, { "gzip", "-cdq", NULL }, 0 }, /* packed */
38 { "BZh", 3, { "bzip2", "-d", NULL }, 1 }, /* bzip2-ed */
38 { "BZh", 3, { "bzip2", "-cd", NULL }, 1 }, /* bzip2-ed */
39};
40
41static int ncompr = sizeof(compr) / sizeof(compr[0]);
42
43
44static int uncompress __P((int, const unsigned char *, unsigned char **, int));
45static int swrite __P((int, const void *, size_t));
46static int sread __P((int, void *, size_t));

--- 146 unchanged lines hidden --- 		39};
40
41static int ncompr = sizeof(compr) / sizeof(compr[0]);
42
43
44static int uncompress __P((int, const unsigned char *, unsigned char **, int));
45static int swrite __P((int, const void *, size_t));
46static int sread __P((int, void *, size_t));

--- 146 unchanged lines hidden ---