]>
git.saurik.com Git - apple/system_cmds.git/blob - vipw.tproj/pw_util.c
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
4 * @APPLE_LICENSE_HEADER_START@
6 * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
8 * This file contains Original Code and/or Modifications of Original Code
9 * as defined in and that are subject to the Apple Public Source License
10 * Version 2.0 (the 'License'). You may not use this file except in
11 * compliance with the License. Please obtain a copy of the License at
12 * http://www.opensource.apple.com/apsl/ and read it before using this
15 * The Original Code and all software distributed under the License are
16 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
17 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
18 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
20 * Please see the License for the specific language governing rights and
21 * limitations under the License.
23 * @APPLE_LICENSE_HEADER_END@
26 * Copyright (c) 1990, 1993, 1994
27 * The Regents of the University of California. All rights reserved.
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer.
34 * 2. Redistributions in binary form must reproduce the above copyright
35 * notice, this list of conditions and the following disclaimer in the
36 * documentation and/or other materials provided with the distribution.
37 * 3. All advertising materials mentioning features or use of this software
38 * must display the following acknowledgement:
39 * This product includes software developed by the University of
40 * California, Berkeley and its contributors.
41 * 4. Neither the name of the University nor the names of its contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 static char sccsid
[] = "@(#)pw_util.c 8.4 (Berkeley) 4/28/95";
63 * This file is used by all the "password" programs; vipw(8), chpass(1),
67 #include <sys/param.h>
69 #include <sys/resource.h>
86 extern char *tempname
;
87 static pid_t editpid
= -1;
104 /* Unlimited resource limits. */
105 rlim
.rlim_cur
= rlim
.rlim_max
= RLIM_INFINITY
;
106 (void)setrlimit(RLIMIT_CPU
, &rlim
);
107 (void)setrlimit(RLIMIT_FSIZE
, &rlim
);
108 (void)setrlimit(RLIMIT_STACK
, &rlim
);
109 (void)setrlimit(RLIMIT_DATA
, &rlim
);
110 (void)setrlimit(RLIMIT_RSS
, &rlim
);
112 /* Don't drop core (not really necessary, but GP's). */
113 rlim
.rlim_cur
= rlim
.rlim_max
= 0;
114 (void)setrlimit(RLIMIT_CORE
, &rlim
);
116 /* Turn off signals. */
117 (void)signal(SIGALRM
, SIG_IGN
);
118 (void)signal(SIGHUP
, SIG_IGN
);
119 (void)signal(SIGINT
, SIG_IGN
);
120 (void)signal(SIGPIPE
, SIG_IGN
);
121 (void)signal(SIGQUIT
, SIG_IGN
);
122 (void)signal(SIGTERM
, SIG_IGN
);
123 (void)signal(SIGCONT
, pw_cont
);
125 /* Create with exact permissions. */
133 * If the master password file doesn't exist, the system is hosed.
134 * Might as well try to build one. Set the close-on-exec bit so
135 * that users can't get at the encrypted passwords while editing.
136 * Open should allow flock'ing the file; see 4.4BSD. XXX
138 lockfd
= open(_PATH_MASTERPASSWD
, O_RDONLY
, 0);
139 if (lockfd
< 0 || fcntl(lockfd
, F_SETFD
, 1) == -1)
140 err(1, "%s", _PATH_MASTERPASSWD
);
141 if (flock(lockfd
, LOCK_EX
|LOCK_NB
))
142 errx(1, "the password db file is busy");
149 static char path
[MAXPATHLEN
] = _PATH_MASTERPASSWD
;
153 if (p
= strrchr(path
, '/'))
157 strcpy(p
, "pw.XXXXXX");
158 if ((fd
= mkstemp(path
)) == -1)
170 warnx("rebuilding the database...");
171 (void)fflush(stderr
);
172 if (!(pid
= vfork())) {
173 execl(_PATH_PWD_MKDB
, "pwd_mkdb", "-p", tempname
, NULL
);
174 pw_error(_PATH_PWD_MKDB
, 1, 1);
176 pid
= waitpid(pid
, &pstat
, 0);
177 if (pid
== -1 || !WIFEXITED(pstat
) || WEXITSTATUS(pstat
) != 0)
190 if (!(editor
= getenv("EDITOR")))
192 if (p
= strrchr(editor
, '/'))
197 if (!(editpid
= vfork())) {
199 (void)setgid(getgid());
200 (void)setuid(getuid());
202 execlp(editor
, p
, tempname
, NULL
);
206 editpid
= waitpid(editpid
, (int *)&pstat
, WUNTRACED
);
208 pw_error(editor
, 1, 1);
209 else if (WIFSTOPPED(pstat
))
210 raise(WSTOPSIG(pstat
));
211 else if (WIFEXITED(pstat
) && WEXITSTATUS(pstat
) == 0)
214 pw_error(editor
, 1, 1);
224 (void)printf("re-edit the password file? [y]: ");
225 (void)fflush(stdout
);
227 if (c
!= EOF
&& c
!= '\n')
228 while (getchar() != '\n');
230 pw_error(NULL
, 0, 0);
234 pw_error(name
, err
, eval
)
241 warnx("%s: unchanged", _PATH_MASTERPASSWD
);
242 (void)unlink(tempname
);