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c2fd5c94 WJ |
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[] = "@(#)move.c 5.6 (Berkeley) 3/12/91"; | |
39 | #endif /* not lint */ | |
40 | ||
41 | #include <sys/param.h> | |
42 | #include <sys/stat.h> | |
43 | #include <fcntl.h> | |
44 | #include <dirent.h> | |
45 | #include <unistd.h> | |
46 | #include <stdio.h> | |
47 | #include <ar.h> | |
48 | #include "archive.h" | |
49 | #include "extern.h" | |
50 | #include "pathnames.h" | |
51 | ||
52 | extern CHDR chdr; /* converted header */ | |
53 | extern char *archive; /* archive name */ | |
54 | extern char *tname; /* temporary file "name" */ | |
55 | ||
56 | /* | |
57 | * move -- | |
58 | * Change location of named members in archive - if 'b' or 'i' option | |
59 | * selected then named members are placed before 'posname'. If 'a' | |
60 | * option selected members go after 'posname'. If no options, members | |
61 | * are moved to end of archive. | |
62 | */ | |
63 | move(argv) | |
64 | char **argv; | |
65 | { | |
66 | extern char *posarg, *posname; /* positioning file names */ | |
67 | CF cf; | |
68 | off_t size, tsize; | |
69 | int afd, curfd, mods, tfd1, tfd2, tfd3; | |
70 | char *file; | |
71 | ||
72 | afd = open_archive(O_RDWR); | |
73 | mods = options & (AR_A|AR_B); | |
74 | ||
75 | tfd1 = tmp(); /* Files before key file. */ | |
76 | tfd2 = tmp(); /* Files selected by user. */ | |
77 | tfd3 = tmp(); /* Files after key file. */ | |
78 | ||
79 | /* | |
80 | * Break archive into three parts -- selected entries and entries | |
81 | * before and after the key entry. If positioning before the key, | |
82 | * place the key at the beginning of the after key entries and if | |
83 | * positioning after the key, place the key at the end of the before | |
84 | * key entries. Put it all back together at the end. | |
85 | */ | |
86 | ||
87 | /* Read and write to an archive; pad on both. */ | |
88 | SETCF(afd, archive, 0, tname, RPAD|WPAD); | |
89 | for (curfd = tfd1; get_arobj(afd);) { | |
90 | if (*argv && (file = files(argv))) { | |
91 | if (options & AR_V) | |
92 | (void)printf("m - %s\n", file); | |
93 | cf.wfd = tfd2; | |
94 | put_arobj(&cf, (struct stat *)NULL); | |
95 | continue; | |
96 | } | |
97 | if (mods && compare(posname)) { | |
98 | mods = 0; | |
99 | if (options & AR_B) | |
100 | curfd = tfd3; | |
101 | cf.wfd = curfd; | |
102 | put_arobj(&cf, (struct stat *)NULL); | |
103 | if (options & AR_A) | |
104 | curfd = tfd3; | |
105 | } else { | |
106 | cf.wfd = curfd; | |
107 | put_arobj(&cf, (struct stat *)NULL); | |
108 | } | |
109 | } | |
110 | ||
111 | if (mods) { | |
112 | (void)fprintf(stderr, "ar: %s: archive member not found.\n", | |
113 | posarg); | |
114 | close_archive(afd); | |
115 | return(1); | |
116 | } | |
117 | (void)lseek(afd, (off_t)SARMAG, SEEK_SET); | |
118 | ||
119 | SETCF(tfd1, tname, afd, archive, NOPAD); | |
120 | tsize = size = lseek(tfd1, (off_t)0, SEEK_CUR); | |
121 | (void)lseek(tfd1, (off_t)0, SEEK_SET); | |
122 | copy_ar(&cf, size); | |
123 | ||
124 | tsize += size = lseek(tfd2, (off_t)0, SEEK_CUR); | |
125 | (void)lseek(tfd2, (off_t)0, SEEK_SET); | |
126 | cf.rfd = tfd2; | |
127 | copy_ar(&cf, size); | |
128 | ||
129 | tsize += size = lseek(tfd3, (off_t)0, SEEK_CUR); | |
130 | (void)lseek(tfd3, (off_t)0, SEEK_SET); | |
131 | cf.rfd = tfd3; | |
132 | copy_ar(&cf, size); | |
133 | ||
134 | (void)ftruncate(afd, tsize + SARMAG); | |
135 | close_archive(afd); | |
136 | ||
137 | if (*argv) { | |
138 | orphans(argv); | |
139 | return(1); | |
140 | } | |
141 | return(0); | |
142 | } |