1 /*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Hugh Smith at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37 #ifndef lint
38 static char sccsid[] = "@(#)touch.c 5.3 (Berkeley) 3/12/91";
39 #endif /* not lint */
40
41 #include <sys/types.h>
42 #include <fcntl.h>
43 #include <dirent.h>
44 #include <ranlib.h>
45 #include <ar.h>
46 #include <time.h>
47 #include <unistd.h>
48 #include <stdio.h>
49 #include <string.h>
50 #include <archive.h>
51
52 extern CHDR chdr; /* converted header */
53 extern char *archive; /* archive name */
54
touch()55 touch()
56 {
57 int afd;
58
59 afd = open_archive(O_RDWR);
60
61 if (!get_arobj(afd) ||
62 strncmp(RANLIBMAG, chdr.name, sizeof(RANLIBMAG) - 1)) {
63 (void)fprintf(stderr,
64 "ranlib: %s: no symbol table.\n", archive);
65 return(1);
66 }
67 settime(afd);
68 return(0);
69 }
70
settime(afd)71 settime(afd)
72 int afd;
73 {
74 struct ar_hdr *hdr;
75 off_t size;
76 char buf[50];
77
78 size = SARMAG + sizeof(hdr->ar_name);
79 if (lseek(afd, size, SEEK_SET) == (off_t)-1)
80 error(archive);
81 (void)sprintf(buf, "%-12ld", time((time_t *)NULL) + RANLIBSKEW);
82 if (write(afd, buf, sizeof(hdr->ar_date)) != sizeof(hdr->ar_date))
83 error(archive);
84 }
85