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73e569b3 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[] = "@(#)misc.c 5.7 (Berkeley) 5/27/91"; | |
39 | #endif /* not lint */ | |
40 | ||
41 | #include <sys/param.h> | |
42 | #include <sys/errno.h> | |
43 | #include <signal.h> | |
44 | #include <dirent.h> | |
45 | #include <unistd.h> | |
46 | #include <stdio.h> | |
47 | #include <stdlib.h> | |
48 | #include <string.h> | |
49 | #include "archive.h" | |
50 | #include "extern.h" | |
51 | #include "pathnames.h" | |
52 | ||
53 | extern CHDR chdr; /* converted header */ | |
54 | extern char *archive; /* archive name */ | |
55 | char *tname = "temporary file"; /* temporary file "name" */ | |
56 | ||
57 | tmp() | |
58 | { | |
59 | extern char *envtmp; | |
60 | sigset_t set, oset; | |
61 | static int first; | |
62 | int fd; | |
63 | char path[MAXPATHLEN]; | |
64 | ||
65 | if (!first && !envtmp) { | |
66 | envtmp = getenv("TMPDIR"); | |
67 | first = 1; | |
68 | } | |
69 | ||
70 | if (envtmp) | |
71 | (void)sprintf(path, "%s/%s", envtmp, _NAME_ARTMP); | |
72 | else | |
73 | bcopy(_PATH_ARTMP, path, sizeof(_PATH_ARTMP)); | |
74 | ||
75 | sigfillset(&set); | |
76 | (void)sigprocmask(SIG_BLOCK, &set, &oset); | |
77 | if ((fd = mkstemp(path)) == -1) | |
78 | error(tname); | |
79 | (void)unlink(path); | |
80 | (void)sigprocmask(SIG_SETMASK, &oset, NULL); | |
81 | return(fd); | |
82 | } | |
83 | ||
84 | /* | |
85 | * files -- | |
86 | * See if the current file matches any file in the argument list; if it | |
87 | * does, remove it from the argument list. | |
88 | */ | |
89 | char * | |
90 | files(argv) | |
91 | char **argv; | |
92 | { | |
93 | register char **list; | |
94 | char *p; | |
95 | ||
96 | for (list = argv; *list; ++list) | |
97 | if (compare(*list)) { | |
98 | p = *list; | |
99 | for (; list[0] = list[1]; ++list); | |
100 | return(p); | |
101 | } | |
102 | return(NULL); | |
103 | } | |
104 | ||
105 | void | |
106 | orphans(argv) | |
107 | char **argv; | |
108 | { | |
109 | for (; *argv; ++argv) | |
110 | (void)fprintf(stderr, | |
111 | "ar: %s: not found in archive.\n", *argv); | |
112 | } | |
113 | ||
114 | char * | |
115 | rname(path) | |
116 | char *path; | |
117 | { | |
118 | register char *ind; | |
119 | ||
120 | return((ind = rindex(path, '/')) ? ind + 1 : path); | |
121 | } | |
122 | ||
123 | compare(dest) | |
124 | char *dest; | |
125 | { | |
126 | if (options & AR_TR) | |
127 | return(!strncmp(chdr.name, rname(dest), OLDARMAXNAME)); | |
128 | return(!strcmp(chdr.name, rname(dest))); | |
129 | } | |
130 | ||
131 | void | |
132 | badfmt() | |
133 | { | |
134 | errno = EFTYPE; | |
135 | error(archive); | |
136 | } | |
137 | ||
138 | void | |
139 | error(name) | |
140 | char *name; | |
141 | { | |
142 | (void)fprintf(stderr, "ar: %s: %s\n", name, strerror(errno)); | |
143 | exit(1); | |
144 | } |