Annotation of src/usr.bin/ar/move.c, Revision 1.3
1.3 ! kstailey 1: /* $OpenBSD: move.c,v 1.2 1996/06/26 05:31:21 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: move.c,v 1.5 1995/03/26 03:27:57 glass Exp $ */
3:
4: /*-
5: * Copyright (c) 1990, 1993, 1994
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Hugh Smith at The University of Guelph.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: #if 0
42: static char sccsid[] = "@(#)move.c 8.3 (Berkeley) 4/2/94";
43: #else
1.3 ! kstailey 44: static char rcsid[] = "$OpenBSD: move.c,v 1.2 1996/06/26 05:31:21 deraadt Exp $";
1.1 deraadt 45: #endif
46: #endif /* not lint */
47:
48: #include <sys/param.h>
49: #include <sys/stat.h>
50:
51: #include <ar.h>
52: #include <dirent.h>
53: #include <err.h>
54: #include <fcntl.h>
55: #include <stdio.h>
56: #include <unistd.h>
57:
58: #include "archive.h"
59: #include "extern.h"
60: #include "pathnames.h"
61:
62: /*
63: * move --
64: * Change location of named members in archive - if 'b' or 'i' option
65: * selected then named members are placed before 'posname'. If 'a'
66: * option selected members go after 'posname'. If no options, members
67: * are moved to end of archive.
68: */
69: int
70: move(argv)
71: char **argv;
72: {
73: CF cf;
74: off_t size, tsize;
75: int afd, curfd, mods, tfd1, tfd2, tfd3;
76: char *file;
77:
78: afd = open_archive(O_RDWR);
79: mods = options & (AR_A|AR_B);
80:
81: tfd1 = tmp(); /* Files before key file. */
82: tfd2 = tmp(); /* Files selected by user. */
83: tfd3 = tmp(); /* Files after key file. */
84:
85: /*
86: * Break archive into three parts -- selected entries and entries
87: * before and after the key entry. If positioning before the key,
88: * place the key at the beginning of the after key entries and if
89: * positioning after the key, place the key at the end of the before
90: * key entries. Put it all back together at the end.
91: */
92:
93: /* Read and write to an archive; pad on both. */
94: SETCF(afd, archive, 0, tname, RPAD|WPAD);
95: for (curfd = tfd1; get_arobj(afd);) {
96: if (*argv && (file = files(argv))) {
97: if (options & AR_V)
98: (void)printf("m - %s\n", file);
99: cf.wfd = tfd2;
1.3 ! kstailey 100: put_arobj(&cf, NULL);
1.1 deraadt 101: continue;
102: }
103: if (mods && compare(posname)) {
104: mods = 0;
105: if (options & AR_B)
106: curfd = tfd3;
107: cf.wfd = curfd;
1.3 ! kstailey 108: put_arobj(&cf, NULL);
1.1 deraadt 109: if (options & AR_A)
110: curfd = tfd3;
111: } else {
112: cf.wfd = curfd;
1.3 ! kstailey 113: put_arobj(&cf, NULL);
1.1 deraadt 114: }
115: }
116:
117: if (mods) {
118: warnx("%s: archive member not found", posarg);
119: close_archive(afd);
120: return (1);
121: }
122: (void)lseek(afd, (off_t)SARMAG, SEEK_SET);
123:
124: SETCF(tfd1, tname, afd, archive, NOPAD);
125: tsize = size = lseek(tfd1, (off_t)0, SEEK_CUR);
126: (void)lseek(tfd1, (off_t)0, SEEK_SET);
127: copy_ar(&cf, size);
128:
129: tsize += size = lseek(tfd2, (off_t)0, SEEK_CUR);
130: (void)lseek(tfd2, (off_t)0, SEEK_SET);
131: cf.rfd = tfd2;
132: copy_ar(&cf, size);
133:
134: tsize += size = lseek(tfd3, (off_t)0, SEEK_CUR);
135: (void)lseek(tfd3, (off_t)0, SEEK_SET);
136: cf.rfd = tfd3;
137: copy_ar(&cf, size);
138:
139: (void)ftruncate(afd, tsize + SARMAG);
140: close_archive(afd);
141:
142: if (*argv) {
143: orphans(argv);
144: return (1);
145: }
146: return (0);
147: }
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