Annotation of src/usr.bin/passwd/passwd.c, Revision 1.7
1.7 ! art 1: /* $OpenBSD: passwd.c,v 1.6 1997/03/27 00:30:54 weingart 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.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef lint
37: char copyright[] =
38: "@(#) Copyright (c) 1988 The Regents of the University of California.\n\
39: All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
43: /*static char sccsid[] = "from: @(#)passwd.c 5.5 (Berkeley) 7/6/91";*/
1.7 ! art 44: static char rcsid[] = "$OpenBSD: passwd.c,v 1.6 1997/03/27 00:30:54 weingart Exp $";
1.1 deraadt 45: #endif /* not lint */
46:
47: #include <stdio.h>
48: #include <string.h>
49: #include <unistd.h>
1.3 tholo 50: #ifdef KERBEROS
51: #include <kerberosIV/krb.h>
52: #endif
1.1 deraadt 53:
54: /*
55: * Note on configuration:
56: * Generally one would not use both Kerberos and YP
57: * to maintain passwords.
58: *
59: */
60:
61: int use_kerberos;
62: int use_yp;
63:
64: #ifdef YP
65: int force_yp;
66: #endif
67:
1.6 weingart 68:
69: extern int local_passwd(char *);
70: extern int yp_passwd(char *);
1.7 ! art 71: extern int krb_passwd(int, char **);
1.6 weingart 72: void usage(void);
73:
74:
75: int
1.1 deraadt 76: main(argc, argv)
77: int argc;
78: char **argv;
79: {
80: extern int optind;
81: register int ch;
82: char *username;
83: int status = 0;
1.3 tholo 84: #if defined(KERBEROS) || defined(KERBEROS5)
85: extern char realm[];
1.1 deraadt 86:
1.3 tholo 87: if (krb_get_lrealm(realm,1) == KSUCCESS)
88: use_kerberos = 1;
1.1 deraadt 89: #endif
90: #ifdef YP
91: use_yp = _yp_check(NULL);
92: #endif
93:
1.6 weingart 94: /* Process args and options */
1.7 ! art 95: while ((ch = getopt(argc, argv, "lyk")) != -1)
1.1 deraadt 96: switch (ch) {
97: case 'l': /* change local password file */
98: use_kerberos = 0;
99: use_yp = 0;
100: break;
101: case 'k': /* change Kerberos password */
102: #if defined(KERBEROS) || defined(KERBEROS5)
103: use_kerberos = 1;
104: use_yp = 0;
1.7 ! art 105: exit(krb_passwd(argc, argv));
1.1 deraadt 106: break;
107: #else
108: fprintf(stderr, "passwd: Kerberos not compiled in\n");
109: exit(1);
110: #endif
111: case 'y': /* change YP password */
112: #ifdef YP
113: if (!use_yp) {
114: fprintf(stderr, "passwd: YP not in use.\n");
115: exit(1);
116: }
117: use_kerberos = 0;
118: use_yp = 1;
119: force_yp = 1;
120: break;
121: #else
122: fprintf(stderr, "passwd: YP not compiled in\n");
123: exit(1);
124: #endif
125: default:
126: usage();
127: exit(1);
128: }
129:
130: argc -= optind;
131: argv += optind;
132:
133: username = getlogin();
134: if (username == NULL) {
135: fprintf(stderr, "passwd: who are you ??\n");
136: exit(1);
137: }
138:
139: switch(argc) {
140: case 0:
141: break;
142: case 1:
143: #if defined(KERBEROS) || defined(KERBEROS5)
1.7 ! art 144: if (use_kerberos && strcmp(argv[0], username)) {
! 145: (void)fprintf(stderr, "passwd: %s\n\t%s\n%s\n",
! 146: "to change another user's Kerberos password, do",
! 147: "\"passwd -k -u <user>\";",
! 148: "to change a user's local passwd, use \"passwd -l <user>\"");
! 149: exit(1);
! 150: }
1.1 deraadt 151: #endif
152: username = argv[0];
153: break;
154: default:
155: usage();
156: exit(1);
157: }
158:
159: #if defined(KERBEROS) || defined(KERBEROS5)
1.7 ! art 160: if (use_kerberos)
! 161: exit(krb_passwd(argc, argv));
1.1 deraadt 162: #endif
1.7 ! art 163:
1.1 deraadt 164: #ifdef YP
165: if (force_yp || ((status = local_passwd(username)) && use_yp))
166: exit(yp_passwd(username));
167: exit(status);
168: #endif
169: exit(local_passwd(username));
170: }
171:
1.6 weingart 172: void
173: usage(void)
1.1 deraadt 174: {
1.7 ! art 175: fprintf(stderr, "usage: passwd [-l] [-y] [-k [-n name] [-i instance] [-r realm] [-u username[.instance][@realm]] [user]\n");
1.1 deraadt 176: }
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