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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 | * | |
8 | * %sccs.include.redist.c% | |
9 | */ | |
10 | ||
11 | #ifndef lint | |
44c5e2d6 | 12 | static char sccsid[] = "@(#)move.c 5.2 (Berkeley) %G%"; |
5fa1c8be KB |
13 | #endif /* not lint */ |
14 | ||
15 | #include <sys/param.h> | |
16 | #include <sys/stat.h> | |
17 | #include <fcntl.h> | |
18 | #include <unistd.h> | |
19 | #include <dirent.h> | |
20 | #include <stdio.h> | |
21 | #include <ar.h> | |
22 | #include "archive.h" | |
23 | #include "pathnames.h" | |
24 | ||
25 | extern CHDR chdr; /* converted header */ | |
26 | extern char *archive; /* archive name */ | |
27 | extern char *tname; /* temporary file "name" */ | |
28 | ||
29 | /* | |
30 | * move -- | |
31 | * Change location of named members in archive - if 'b' or 'i' option | |
32 | * selected then named members are placed before 'posname'. If 'a' | |
33 | * option selected members go after 'posname'. If no options, members | |
34 | * are moved to end of archive. | |
35 | */ | |
36 | move(argv) | |
37 | char **argv; | |
38 | { | |
39 | extern char *posname; /* positioning file name */ | |
40 | CF cf; | |
41 | off_t size, tsize; | |
42 | int afd, curfd, eval, mods, tfd1, tfd2, tfd3; | |
43 | ||
44 | afd = open_archive(O_RDWR); | |
45 | mods = options & (AR_A|AR_B); | |
46 | ||
47 | tfd1 = tmp(); /* Files before key file. */ | |
48 | tfd2 = tmp(); /* Files selected by user. */ | |
49 | tfd3 = tmp(); /* Files after key file. */ | |
50 | ||
51 | /* | |
52 | * Break archive into three parts -- selected entries and entries | |
53 | * before and after the key entry. If positioning before the key, | |
54 | * place the key at the beginning of the after key entries and if | |
55 | * positioning after the key, place the key at the end of the before | |
56 | * key entries. Put it all back together at the end. | |
57 | */ | |
58 | SETCF(afd, archive, 0, tname, RPAD|WPAD); | |
59 | for (curfd = tfd1; get_header(afd);) { | |
60 | if (*argv && files(argv)) { | |
61 | if (options & AR_V) | |
62 | (void)printf("m - %s\n", chdr.name); | |
63 | cf.wfd = tfd2; | |
64 | put_header(&cf, (struct stat *)NULL); | |
65 | copyfile(&cf, chdr.size); | |
66 | continue; | |
67 | } | |
68 | if (mods && compare(posname)) { | |
69 | mods = 0; | |
70 | if (options & AR_B) | |
71 | curfd = tfd3; | |
72 | cf.wfd = curfd; | |
73 | put_header(&cf, (struct stat *)NULL); | |
74 | copyfile(&cf, chdr.size); | |
75 | if (options & AR_A) | |
76 | curfd = tfd3; | |
77 | } else { | |
78 | cf.wfd = curfd; | |
79 | put_header(&cf, (struct stat *)NULL); | |
80 | copyfile(&cf, chdr.size); | |
81 | } | |
82 | } | |
83 | ||
84 | if (mods) { | |
85 | (void)fprintf(stderr, "ar: %s: archive member not found.\n", | |
86 | posname); | |
87 | close_archive(afd); | |
88 | return(1); | |
89 | } | |
90 | (void)lseek(afd, (off_t)SARMAG, SEEK_SET); | |
91 | ||
44c5e2d6 | 92 | eval = 0; |
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93 | ORPHANS; |
94 | ||
95 | SETCF(tfd1, tname, afd, archive, RPAD|WPAD); | |
96 | tsize = size = lseek(tfd1, (off_t)0, SEEK_CUR); | |
97 | (void)lseek(tfd1, (off_t)0, SEEK_SET); | |
98 | copyfile(&cf, size); | |
99 | ||
100 | tsize += size = lseek(tfd2, (off_t)0, SEEK_CUR); | |
101 | (void)lseek(tfd2, (off_t)0, SEEK_SET); | |
102 | cf.rfd = tfd2; | |
103 | copyfile(&cf, size); | |
104 | ||
105 | tsize += size = lseek(tfd3, (off_t)0, SEEK_CUR); | |
106 | (void)lseek(tfd3, (off_t)0, SEEK_SET); | |
107 | cf.rfd = tfd3; | |
108 | copyfile(&cf, size); | |
109 | ||
110 | (void)ftruncate(afd, tsize + SARMAG); | |
111 | close_archive(afd); | |
112 | return(eval); | |
113 | } |