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1815bff5 1/*
34d340d7 2 * Copyright (c) 1999-2006 Apple Computer, Inc. All rights reserved.
1815bff5
A
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
34d340d7
A
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
1815bff5
A
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
34d340d7
A
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
1815bff5
A
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23/*-
24 * Copyright (c) 1990, 1993, 1994
34d340d7
A
25 * The Regents of the University of California. All rights reserved.
26 * Copyright (c) 2002 Networks Associates Technology, Inc.
27 * All rights reserved.
28 *
29 * Portions of this software were developed for the FreeBSD Project by
30 * ThinkSec AS and NAI Labs, the Security Research Division of Network
31 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
32 * ("CBOSS"), as part of the DARPA CHATS research program.
1815bff5
A
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
34d340d7
A
44 * This product includes software developed by the University of
45 * California, Berkeley and its contributors.
1815bff5
A
46 * 4. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 */
62
34d340d7
A
63#if 0
64#if 0
65#ifndef lint
66static char sccsid[] = "@(#)edit.c 8.3 (Berkeley) 4/2/94";
67#endif /* not lint */
68#endif
69
70#include <sys/cdefs.h>
71__FBSDID("$FreeBSD: src/usr.bin/chpass/edit.c,v 1.23 2003/04/09 18:18:42 des Exp $");
72#endif
73
1815bff5
A
74#include <sys/param.h>
75#include <sys/stat.h>
76
77#include <ctype.h>
78#include <err.h>
79#include <errno.h>
80#include <paths.h>
81#include <pwd.h>
82#include <stdio.h>
83#include <stdlib.h>
84#include <string.h>
85#include <unistd.h>
86
34d340d7 87#ifndef OPEN_DIRECTORY
1815bff5 88#include <pw_scan.h>
34d340d7
A
89#include <libutil.h>
90#endif
1815bff5
A
91
92#include "chpass.h"
93
34d340d7
A
94#ifdef OPEN_DIRECTORY
95static int display(const char *tfn, CFDictionaryRef attrs);
96static CFDictionaryRef verify(const char *tfn, CFDictionaryRef attrs);
97#else
98static int display(const char *tfn, struct passwd *pw);
99static struct passwd *verify(const char *tfn, struct passwd *pw);
100#endif
1815bff5 101
34d340d7
A
102#ifdef OPEN_DIRECTORY
103CFDictionaryRef
104edit(const char *tfn, CFDictionaryRef pw)
105#else
106struct passwd *
107edit(const char *tfn, struct passwd *pw)
108#endif
1815bff5 109{
34d340d7
A
110#ifdef OPEN_DIRECTORY
111 CFDictionaryRef npw;
112#else
113 struct passwd *npw;
114#endif
115 char *line;
116 size_t len;
1815bff5 117
34d340d7
A
118 if (display(tfn, pw) == -1)
119 return (NULL);
1815bff5 120 for (;;) {
34d340d7
A
121#ifdef OPEN_DIRECTORY
122 switch (editfile(tfn)) {
123#else
124 switch (pw_edit(1)) {
125#endif
126 case -1:
127 return (NULL);
128 case 0:
129#ifdef OPEN_DIRECTORY
130 return (NULL);
131#else
132 return (pw_dup(pw));
133#endif
134 default:
1815bff5 135 break;
34d340d7
A
136 }
137 if ((npw = verify(tfn, pw)) != NULL)
138 return (npw);
139#ifndef OPEN_DIRECTORY
140 free(npw);
141#endif
142 printf("re-edit the password file? ");
143 fflush(stdout);
144 if ((line = fgetln(stdin, &len)) == NULL) {
145 warn("fgetln()");
146 return (NULL);
147 }
148 if (len > 0 && (*line == 'N' || *line == 'n'))
149 return (NULL);
1815bff5
A
150 }
151}
152
153/*
154 * display --
155 * print out the file for the user to edit; strange side-effect:
156 * set conditional flag if the user gets to edit the shell.
157 */
34d340d7
A
158#if OPEN_DIRECTORY
159static int
160display(const char *tfn, CFDictionaryRef attrs)
161#else
162static int
163display(const char *tfn, struct passwd *pw)
164#endif
1815bff5
A
165{
166 FILE *fp;
34d340d7
A
167#ifndef OPEN_DIRECTORY
168 char *bp, *gecos, *p;
169#endif
1815bff5 170
34d340d7
A
171 if ((fp = fopen(tfn, "w")) == NULL) {
172 warn("%s", tfn);
173 return (-1);
c3a08f59 174 }
c3a08f59 175
34d340d7 176#ifdef OPEN_DIRECTORY
ef8ad44b 177 CFArrayRef values = CFDictionaryGetValue(attrs, kODAttributeTypeRecordName);
34d340d7
A
178 CFStringRef username = (values && CFArrayGetCount(values)) > 0 ? CFArrayGetValueAtIndex(values, 0) : NULL;
179
180 (void)cfprintf(fp,
181 "# Changing user information for %@.\n"
182 "# Use \"passwd\" to change the password.\n"
183 "##\n"
184 "# Open Directory%s%@\n"
185 "##\n",
186 username,
187 DSPath ? ": " : "",
188 DSPath ? DSPath : CFSTR(""));
189
190 int ndisplayed = 0;
191 ENTRY* ep;
c3a08f59
A
192 for (ep = list; ep->prompt; ep++)
193 if (!ep->restricted) {
ef8ad44b 194 ep->display(attrs, *ep->attrName, ep->prompt, fp);
c3a08f59
A
195 ndisplayed++;
196 }
197 if(!ndisplayed) {
198 (void)fprintf(fp, "###################################\n");
199 (void)fprintf(fp, "# No fields are available to change\n");
200 (void)fprintf(fp, "###################################\n");
201 }
34d340d7
A
202#else OPEN_DIRECTORY
203 (void)fprintf(fp,
204 "#Changing user information for %s.\n", pw->pw_name);
205 if (master_mode) {
1815bff5
A
206 (void)fprintf(fp, "Login: %s\n", pw->pw_name);
207 (void)fprintf(fp, "Password: %s\n", pw->pw_passwd);
34d340d7
A
208 (void)fprintf(fp, "Uid [#]: %lu\n", (unsigned long)pw->pw_uid);
209 (void)fprintf(fp, "Gid [# or name]: %lu\n",
210 (unsigned long)pw->pw_gid);
1815bff5
A
211 (void)fprintf(fp, "Change [month day year]: %s\n",
212 ttoa(pw->pw_change));
213 (void)fprintf(fp, "Expire [month day year]: %s\n",
214 ttoa(pw->pw_expire));
215 (void)fprintf(fp, "Class: %s\n", pw->pw_class);
216 (void)fprintf(fp, "Home directory: %s\n", pw->pw_dir);
217 (void)fprintf(fp, "Shell: %s\n",
218 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
219 }
220 /* Only admin can change "restricted" shells. */
34d340d7 221#if 0
1815bff5
A
222 else if (ok_shell(pw->pw_shell))
223 /*
224 * Make shell a restricted field. Ugly with a
225 * necklace, but there's not much else to do.
226 */
34d340d7
A
227#else
228 else if ((!list[E_SHELL].restricted && ok_shell(pw->pw_shell)) ||
229 master_mode)
230 /*
231 * If change not restrict (table.c) and standard shell
232 * OR if root, then allow editing of shell.
233 */
234#endif
1815bff5
A
235 (void)fprintf(fp, "Shell: %s\n",
236 *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
237 else
238 list[E_SHELL].restricted = 1;
34d340d7
A
239
240 if ((bp = gecos = strdup(pw->pw_gecos)) == NULL) {
241 warn(NULL);
242 fclose(fp);
243 return (-1);
244 }
245
1815bff5 246 p = strsep(&bp, ",");
34d340d7
A
247 p = strdup(p ? p : "");
248 list[E_NAME].save = p;
249 if (!list[E_NAME].restricted || master_mode)
250 (void)fprintf(fp, "Full Name: %s\n", p);
251
1815bff5 252 p = strsep(&bp, ",");
34d340d7
A
253 p = strdup(p ? p : "");
254 list[E_LOCATE].save = p;
255 if (!list[E_LOCATE].restricted || master_mode)
256 (void)fprintf(fp, "Office Location: %s\n", p);
257
1815bff5 258 p = strsep(&bp, ",");
34d340d7
A
259 p = strdup(p ? p : "");
260 list[E_BPHONE].save = p;
261 if (!list[E_BPHONE].restricted || master_mode)
262 (void)fprintf(fp, "Office Phone: %s\n", p);
263
1815bff5 264 p = strsep(&bp, ",");
34d340d7
A
265 p = strdup(p ? p : "");
266 list[E_HPHONE].save = p;
267 if (!list[E_HPHONE].restricted || master_mode)
268 (void)fprintf(fp, "Home Phone: %s\n", p);
269
270 bp = strdup(bp ? bp : "");
271 list[E_OTHER].save = bp;
272 if (!list[E_OTHER].restricted || master_mode)
273 (void)fprintf(fp, "Other information: %s\n", bp);
274
275 free(gecos);
276#endif /* OPEN_DIRECTORY */
1815bff5 277
34d340d7 278 (void)fchown(fileno(fp), getuid(), getgid());
1815bff5 279 (void)fclose(fp);
34d340d7 280 return (0);
1815bff5
A
281}
282
34d340d7
A
283#ifdef OPEN_DIRECTORY
284static CFDictionaryRef
285verify(const char* tfn, CFDictionaryRef pw)
286#else
287static struct passwd *
288verify(const char *tfn, struct passwd *pw)
289#endif
1815bff5 290{
34d340d7
A
291#ifdef OPEN_DIRECTORY
292 CFMutableDictionaryRef npw;
293#else
294 struct passwd *npw;
295#endif
1815bff5 296 ENTRY *ep;
34d340d7 297 char *buf, *p, *val;
1815bff5
A
298 struct stat sb;
299 FILE *fp;
34d340d7
A
300 int line;
301 size_t len;
1815bff5 302
34d340d7
A
303#ifdef OPEN_DIRECTORY
304 if ((npw = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL)
305 return (NULL);
306#else
307 if ((pw = pw_dup(pw)) == NULL)
308 return (NULL);
309#endif
310 if ((fp = fopen(tfn, "r")) == NULL ||
311 fstat(fileno(fp), &sb) == -1) {
312 warn("%s", tfn);
313#ifndef OPEN_DIRECTORY
314 free(pw);
315#endif
316 return (NULL);
317 }
1815bff5
A
318 if (sb.st_size == 0) {
319 warnx("corrupted temporary file");
34d340d7
A
320 fclose(fp);
321#ifndef OPEN_DIRECTORY
322 free(pw);
323#endif
324 return (NULL);
1815bff5 325 }
34d340d7
A
326 val = NULL;
327 for (line = 1; (buf = fgetln(fp, &len)) != NULL; ++line) {
328 if (*buf == '\0' || *buf == '#')
1815bff5 329 continue;
34d340d7
A
330 while (len > 0 && isspace(buf[len - 1]))
331 --len;
1815bff5
A
332 for (ep = list;; ++ep) {
333 if (!ep->prompt) {
34d340d7
A
334 warnx("%s: unrecognized field on line %d",
335 tfn, line);
1815bff5
A
336 goto bad;
337 }
34d340d7
A
338 if (ep->len > len)
339 continue;
340 if (strncasecmp(buf, ep->prompt, ep->len) != 0)
341 continue;
342 if (ep->restricted && !master_mode) {
343 warnx("%s: you may not change the %s field",
344 tfn, ep->prompt);
345 goto bad;
346 }
347 for (p = buf; p < buf + len && *p != ':'; ++p)
348 /* nothing */ ;
349 if (*p != ':') {
350 warnx("%s: line %d corrupted", tfn, line);
351 goto bad;
352 }
353 while (++p < buf + len && isspace(*p))
354 /* nothing */ ;
355 free(val);
356 asprintf(&val, "%.*s", (int)(buf + len - p), p);
357 if (val == NULL)
358 goto bad;
359 if (ep->except && strpbrk(val, ep->except)) {
360 warnx("%s: invalid character in \"%s\" field '%s'",
361 tfn, ep->prompt, val);
362 goto bad;
363 }
364#ifdef OPEN_DIRECTORY
365 if ((ep->func)(val, NULL, NULL))
366 goto bad;
367 {
368 CFStringRef str = CFStringCreateWithCString(NULL, val, kCFStringEncodingUTF8);
369 if (str) {
ef8ad44b 370 CFDictionarySetValue(npw, *ep->attrName, str);
34d340d7 371 CFRelease(str);
1815bff5 372 }
1815bff5 373 }
34d340d7
A
374#else
375 if ((ep->func)(val, pw, ep))
376 goto bad;
377#endif
378 break;
1815bff5
A
379 }
380 }
34d340d7
A
381 free(val);
382 fclose(fp);
1815bff5 383
34d340d7 384#ifndef OPEN_DIRECTORY
1815bff5 385 /* Build the gecos field. */
34d340d7
A
386 len = asprintf(&p, "%s,%s,%s,%s,%s", list[E_NAME].save,
387 list[E_LOCATE].save, list[E_BPHONE].save,
388 list[E_HPHONE].save, list[E_OTHER].save);
389 if (p == NULL) {
390 warn("asprintf()");
391 free(pw);
392 return (NULL);
393 }
394 while (len > 0 && p[len - 1] == ',')
395 p[--len] = '\0';
396 pw->pw_gecos = p;
397 buf = pw_make(pw);
398 free(pw);
399 free(p);
400 if (buf == NULL) {
401 warn("pw_make()");
402 return (NULL);
1815bff5 403 }
34d340d7
A
404 npw = pw_scan(buf, PWSCAN_WARN|PWSCAN_MASTER);
405#endif /* !OPEN_DIRECTORY */
406 free(buf);
407 return (npw);
408bad:
409#ifndef OPEN_DIRECTORY
410 free(pw);
411#endif
412 free(val);
413 fclose(fp);
414 return (NULL);
1815bff5 415}