Annotation of src/usr.bin/passwd/passwd.c, Revision 1.26
1.26 ! tedu 1: /* $OpenBSD: passwd.c,v 1.25 2009/10/27 23:59:41 deraadt Exp $ */
1.4 deraadt 2:
1.1 deraadt 3: /*
4: * Copyright (c) 1988 The Regents of the University of California.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
1.16 millert 15: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: #include <stdio.h>
1.17 david 33: #include <stdlib.h>
1.1 deraadt 34: #include <string.h>
35: #include <unistd.h>
1.12 millert 36: #include <err.h>
1.20 deraadt 37: #include <rpcsvc/ypclnt.h>
1.1 deraadt 38:
39: /*
40: * Note on configuration:
41: * Generally one would not use both Kerberos and YP
42: * to maintain passwords.
43: *
44: */
45:
46: int use_kerberos;
47: int use_yp;
48:
49: #ifdef YP
50: int force_yp;
51: #endif
52:
1.9 millert 53: extern int local_passwd(char *, int);
1.6 weingart 54: extern int yp_passwd(char *);
1.10 hin 55: extern int krb5_passwd(int, char **);
1.14 hugh 56: extern int _yp_check(char **);
1.15 deraadt 57: void usage(int retval);
1.6 weingart 58:
59: int
1.15 deraadt 60: main(int argc, char **argv)
1.1 deraadt 61: {
62: extern int optind;
1.15 deraadt 63: char *username;
1.13 mpech 64: int ch;
1.14 hugh 65: #ifdef YP
1.1 deraadt 66: int status = 0;
1.14 hugh 67: #endif
1.1 deraadt 68: #ifdef YP
69: use_yp = _yp_check(NULL);
1.19 deraadt 70: if (use_yp) {
71: char *dom;
72:
73: yp_get_default_domain(&dom);
74: yp_unbind(dom);
75: }
1.1 deraadt 76: #endif
77:
1.6 weingart 78: /* Process args and options */
1.26 ! tedu 79: while ((ch = getopt(argc, argv, "ly")) != -1)
1.1 deraadt 80: switch (ch) {
81: case 'l': /* change local password file */
82: use_kerberos = 0;
83: use_yp = 0;
84: break;
85: case 'y': /* change YP password */
86: #ifdef YP
87: if (!use_yp) {
88: fprintf(stderr, "passwd: YP not in use.\n");
89: exit(1);
90: }
91: use_kerberos = 0;
92: use_yp = 1;
93: force_yp = 1;
94: break;
95: #else
96: fprintf(stderr, "passwd: YP not compiled in\n");
97: exit(1);
98: #endif
99: default:
1.8 ericj 100: usage(1);
1.1 deraadt 101: }
102:
103: argc -= optind;
104: argv += optind;
105:
106: username = getlogin();
107: if (username == NULL) {
108: fprintf(stderr, "passwd: who are you ??\n");
109: exit(1);
110: }
1.15 deraadt 111:
112: switch (argc) {
1.1 deraadt 113: case 0:
114: break;
115: case 1:
116: username = argv[0];
117: break;
118: default:
1.8 ericj 119: usage(1);
1.1 deraadt 120: }
1.7 art 121:
1.1 deraadt 122: #ifdef YP
1.9 millert 123: if (force_yp || ((status = local_passwd(username, 0)) && use_yp))
1.1 deraadt 124: exit(yp_passwd(username));
125: exit(status);
1.24 cloder 126: #else
127: exit(local_passwd(username, 0));
1.1 deraadt 128: #endif
129: }
130:
1.6 weingart 131: void
1.15 deraadt 132: usage(int retval)
1.1 deraadt 133: {
1.26 ! tedu 134: fprintf(stderr, "usage: passwd [-l | -y] [user]\n");
1.8 ericj 135: exit(retval);
1.1 deraadt 136: }
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