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1.1 root 1: /* $Source: /newbits/usr/bin/pax/shipping/RCS/cpio.c,v $
2: *
3: * $Revision: 1.3 $
4: *
5: * cpio.c - Cpio specific functions for archive handling
6: *
7: * DESCRIPTION
8: *
9: * These function provide a cpio conformant interface to the pax
10: * program.
11: *
12: * AUTHOR
13: *
14: * Mark H. Colburn, NAPS International ([email protected])
15: *
16: * Sponsored by The USENIX Association for public distribution.
17: *
18: * Copyright (c) 1989 Mark H. Colburn.
19: * All rights reserved.
20: *
21: * Redistribution and use in source and binary forms are permitted
22: * provided that the above copyright notice is duplicated in all such
23: * forms and that any documentation, advertising materials, and other
24: * materials related to such distribution and use acknowledge that the
25: * software was developed * by Mark H. Colburn and sponsored by The
26: * USENIX Association.
27: *
28: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
29: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
30: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
31: *
32: * $Log: cpio.c,v $
33: * Revision 1.3 92/05/12 07:29:10 bin
34: * Vlad fix to fix bug preserving ownership of files
35: *
36: * Revision 1.2 91/06/19 09:55:20 bin
37: * udated by vlad for restoring ownership/permissions
38: *
39: * Revision 1.1 91/02/05 11:55:26 bin
40: * Initial revision
41: *
42: * Revision 1.2 89/02/12 10:04:13 mark
43: * 1.2 release fixes
44: *
45: * Revision 1.1 88/12/23 18:02:05 mark
46: * Initial revision
47: *
48: */
49:
50: #ifndef lint
51: static char *ident = "$Id: cpio.c,v 1.3 92/05/12 07:29:10 bin Exp Locker: bin $";
52: static char *copyright = "Copyright (c) 1989 Mark H. Colburn.\nAll rights reserved.\n";
53: #endif /* ! lint */
54:
55:
56: /* Headers */
57:
58: #include "pax.h"
59:
60:
61: /* Function Prototypes */
62:
63: #if __STDC__
64: static void usage(void);
65: #else /* !__STDC__ */
66: static void usage();
67: #endif /* __STDC__ */
68:
69:
70: /* do_cpio - handle cpio format archives
71: *
72: * DESCRIPTION
73: *
74: * Do_cpio provides a standard CPIO interface to the PAX program. All
75: * of the standard cpio flags are available, and the behavior of the
76: * program mimics traditonal cpio.
77: *
78: * PARAMETERS
79: *
80: * int argc - command line argument count
81: * char **argv - pointer to command line arguments
82: *
83: * RETURNS
84: *
85: * Nothing.
86: */
87:
88: #if __STDC__
89:
90: int do_cpio(int argc, char **argv)
91:
92: #else
93:
94: int do_cpio(argc, argv)
95: int argc;
96: char **argv;
97:
98: #endif
99: {
100: int c;
101: char *dirname;
102: Stat st;
103:
104: /* default input/output file for CPIO is STDIN/STDOUT */
105: ar_file = "-";
106: names_from_stdin = 1;
107:
108: /* set up the flags to reflect the default CPIO inteface. */
109: blocksize = BLOCKSIZE;
110: ar_interface = CPIO;
111: ar_format = CPIO;
112: msgfile=stderr;
113:
114: while ((c = getopt(argc, argv, "D:BVacdfilmoprtuv")) != EOF) {
115: switch (c) {
116: case 'i':
117: f_extract = 1;
118: f_owner = 1;
119: break;
120: case 'o':
121: f_create = 1;
122: break;
123: case 'p':
124: f_pass = 1;
125: f_owner = 1;
126: dirname = argv[--argc];
127:
128: /* check to make sure that the argument is a directory */
129: if (LSTAT(dirname, &st) < 0) {
130: fatal(strerror());
131: }
132: if ((st.sb_mode & S_IFMT) != S_IFDIR) {
133: fatal("Not a directory");
134: }
135: break;
136: case 'B':
137: blocksize = BLOCK;
138: break;
139: case 'a':
140: f_access_time = 1;
141: break;
142: case 'c':
143: break;
144: case 'D':
145: ar_file = optarg;
146: break;
147: case 'd':
148: f_dir_create = 1;
149: break;
150: case 'f':
151: f_reverse_match = 1;
152: break;
153: case 'l':
154: f_link = 1;
155: break;
156: case 'm':
157: f_mtime = 1;
158: break;
159: case 'r':
160: f_interactive = 1;
161: break;
162: case 't':
163: f_list = 1;
164: break;
165: case 'u':
166: f_unconditional = 1;
167: break;
168: case 'v':
169: f_verbose = 1;
170: break;
171: default:
172: usage();
173: }
174: }
175:
176: if (f_create + f_pass + f_extract != 1) {
177: usage();
178: }
179: if (!f_pass) {
180: buf_allocate((OFFSET) blocksize);
181: }
182: if (f_extract) {
183: open_archive(AR_READ); /* Open for reading */
184: read_archive();
185: } else if (f_create) {
186: open_archive(AR_WRITE);
187: create_archive();
188: } else if (f_pass) {
189: pass(dirname);
190: }
191:
192: /* print out the total block count transfered */
193: fprintf(stderr, "%ld Blocks\n", ROUNDUP(total, BLOCKSIZE) / BLOCKSIZE);
194:
195: exit(0);
196: /* NOTREACHED */
197: }
198:
199:
200: /* usage - print a helpful message and exit
201: *
202: * DESCRIPTION
203: *
204: * Usage prints out the usage message for the CPIO interface and then
205: * exits with a non-zero termination status. This is used when a user
206: * has provided non-existant or incompatible command line arguments.
207: *
208: * RETURNS
209: *
210: * Returns an exit status of 1 to the parent process.
211: *
212: */
213:
214: #if __STDC__
215:
216: static void usage(void)
217:
218: #else
219:
220: static void usage()
221:
222: #endif
223: {
224: fprintf(stderr, "Usage: %s -o[Bacv]\n", myname);
225: fprintf(stderr, " %s -i[Bcdmrtuvf] [pattern...]\n", myname);
226: fprintf(stderr, " %s -p[adlmruv] directory\n", myname);
227: exit(1);
228: }
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