projects / unix-history / blame
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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 | * | |
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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. | |
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35 | */ |
| 36 | ||
| 37 | #ifndef lint | |
| af359dea | 38 | static char sccsid[] = "@(#)touch.c 5.3 (Berkeley) 3/12/91"; |
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39 | #endif /* not lint */ |
| 40 | ||
| 41 | #include <sys/types.h> | |
| 42 | #include <fcntl.h> | |
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43 | #include <dirent.h> |
| 44 | #include <ranlib.h> | |
| 45 | #include <ar.h> | |
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46 | #include <time.h> |
| 47 | #include <unistd.h> | |
| d2ce791e | 48 | #include <stdio.h> |
| d6db39e0 | 49 | #include <string.h> |
| d2ce791e | 50 | #include <archive.h> |
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51 | |
| 52 | extern CHDR chdr; /* converted header */ | |
| 53 | extern char *archive; /* archive name */ | |
| 54 | ||
| 55 | touch() | |
| 56 | { | |
| 57 | int afd; | |
| 58 | ||
| 59 | afd = open_archive(O_RDWR); | |
| 60 | ||
| f10e4796 | 61 | if (!get_arobj(afd) || |
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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 | ||
| 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 | } |