aboutsummaryrefslogtreecommitdiff
path: root/libpwdgrp/shadow.c
diff options
context:
space:
mode:
authorandersen <andersen@69ca8d6d-28ef-0310-b511-8ec308f3f277>2004-07-15 12:53:49 +0000
committerandersen <andersen@69ca8d6d-28ef-0310-b511-8ec308f3f277>2004-07-15 12:53:49 +0000
commit48fb8b8392bda5c2a944489eb35572e5a9942bfa (patch)
tree863532a14dd40a1009cee3dac1dfa7fdd8bea653 /libpwdgrp/shadow.c
parent8d067d680796f811a61decb8bbd6f63bf05c1f41 (diff)
downloadbusybox-w32-48fb8b8392bda5c2a944489eb35572e5a9942bfa.tar.gz
busybox-w32-48fb8b8392bda5c2a944489eb35572e5a9942bfa.tar.bz2
busybox-w32-48fb8b8392bda5c2a944489eb35572e5a9942bfa.zip
Replace the old and somewhat buggy pwd_grp stuff with the shiny
new stuff mjn3 wrote for uClibc git-svn-id: svn://busybox.net/trunk/busybox@8956 69ca8d6d-28ef-0310-b511-8ec308f3f277
Diffstat (limited to '')
-rw-r--r--libpwdgrp/shadow.c300
1 files changed, 0 insertions, 300 deletions
diff --git a/libpwdgrp/shadow.c b/libpwdgrp/shadow.c
deleted file mode 100644
index b3a4901f5..000000000
--- a/libpwdgrp/shadow.c
+++ /dev/null
@@ -1,300 +0,0 @@
1/* vi: set sw=4 ts=4: */
2/*
3 * Copyright 1989 - 1994, Julianne Frances Haugh
4 * <jockgrrl@austin.rr.com>, <jfh@austin.ibm.com>
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. Neither the name of Julianne F. Haugh nor the names of its contributors
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 JULIE HAUGH 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 JULIE HAUGH 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/* TODO: fgetspent_r.c getspent_r.c getspnam_r.c sgetspent_r.c
33 * lckpwdf ulckpwdf
34 */
35
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40
41#include "busybox.h"
42#include "shadow_.h"
43
44static FILE *shadow;
45static char spwbuf[BUFSIZ];
46static struct spwd spwd;
47
48#define FIELDS 9
49#define OFIELDS 5
50
51/* setspent - initialize access to shadow text and DBM files */
52void setspent(void)
53{
54 if (shadow) {
55 rewind(shadow);
56 } else {
57 shadow = bb_xfopen(bb_path_shadow_file, "r");
58 }
59}
60
61/* endspent - terminate access to shadow text and DBM files */
62void endspent(void)
63{
64 if (shadow)
65 (void) fclose(shadow);
66 shadow = (FILE *) 0;
67}
68
69/* getspent - get a (struct spwd *) from the current shadow file */
70struct spwd *getspent(void)
71{
72 if (!shadow)
73 setspent();
74 return (fgetspent(shadow));
75}
76
77/* getspnam - get a shadow entry by name */
78struct spwd *getspnam(const char *name)
79{
80 struct spwd *sp;
81
82 if (!name || !strlen(name))
83 return NULL;
84
85 setspent();
86 while ((sp = getspent()) != NULL) {
87 if (strcmp(name, sp->sp_namp) == 0)
88 break;
89 }
90 endspent();
91 return (sp);
92}
93
94
95/* sgetspent - convert string in shadow file format to (struct spwd *) */
96/* returns NULL on error */
97struct spwd *sgetspent(const char *string)
98{
99 char *fields[FIELDS];
100 char *cp;
101 char *cpp;
102 int i;
103
104 /*
105 * Copy string to local buffer. It has to be tokenized and we
106 * have to do that to our private copy.
107 */
108
109 if (strlen(string) >= sizeof spwbuf)
110 /* return 0; */
111 return NULL;
112 strcpy(spwbuf, string);
113
114 if ((cp = strrchr(spwbuf, '\n')))
115 *cp = '\0';
116
117 /*
118 * Tokenize the string into colon separated fields. Allow up to
119 * FIELDS different fields.
120 */
121
122 for (cp = spwbuf, i = 0; *cp && i < FIELDS; i++) {
123 fields[i] = cp;
124 while (*cp && *cp != ':')
125 cp++;
126
127 if (*cp)
128 *cp++ = '\0';
129 }
130
131 /*
132 * It is acceptable for the last SVR4 field to be blank. This
133 * results in the loop being terminated early. In which case,
134 * we just make the last field be blank and be done with it.
135 */
136
137 if (i == (FIELDS - 1))
138 fields[i++] = cp;
139
140 if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
141 /* return 0; */
142 return NULL;
143
144 /*
145 * Start populating the structure. The fields are all in
146 * static storage, as is the structure we pass back. If we
147 * ever see a name with '+' as the first character, we try
148 * to turn on NIS processing.
149 */
150
151 spwd.sp_namp = fields[0];
152 spwd.sp_pwdp = fields[1];
153
154 /*
155 * Get the last changed date. For all of the integer fields,
156 * we check for proper format. It is an error to have an
157 * incorrectly formatted number, unless we are using NIS.
158 */
159
160 if ((spwd.sp_lstchg = strtol(fields[2], &cpp, 10)) == 0 && *cpp) {
161 /* return 0; */
162 return NULL;
163 } else if (fields[2][0] == '\0')
164 spwd.sp_lstchg = -1;
165
166 /*
167 * Get the minimum period between password changes.
168 */
169
170 if ((spwd.sp_min = strtol(fields[3], &cpp, 10)) == 0 && *cpp) {
171 /* return 0; */
172 return NULL;
173 } else if (fields[3][0] == '\0')
174 spwd.sp_min = -1;
175
176 /*
177 * Get the maximum number of days a password is valid.
178 */
179
180 if ((spwd.sp_max = strtol(fields[4], &cpp, 10)) == 0 && *cpp) {
181 /* return 0; */
182 return NULL;
183 } else if (fields[4][0] == '\0')
184 spwd.sp_max = -1;
185
186 /*
187 * If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
188 * formatted file), initialize the other field members to -1.
189 */
190
191 if (i == OFIELDS) {
192 spwd.sp_warn = spwd.sp_inact = spwd.sp_expire = spwd.sp_flag = -1;
193
194 return &spwd;
195 }
196
197 /*
198 * The rest of the fields are mandatory for SVR4, but optional
199 * for anything else. However, if one is present the others
200 * must be as well.
201 */
202
203 /*
204 * Get the number of days of password expiry warning.
205 */
206
207 if ((spwd.sp_warn = strtol(fields[5], &cpp, 10)) == 0 && *cpp) {
208 /* return 0; */
209 return NULL;
210 } else if (fields[5][0] == '\0')
211 spwd.sp_warn = -1;
212
213 /*
214 * Get the number of days of inactivity before an account is
215 * disabled.
216 */
217
218 if ((spwd.sp_inact = strtol(fields[6], &cpp, 10)) == 0 && *cpp) {
219 /* return 0; */
220 return NULL;
221 } else if (fields[6][0] == '\0')
222 spwd.sp_inact = -1;
223
224 /*
225 * Get the number of days after the epoch before the account is
226 * set to expire.
227 */
228
229 if ((spwd.sp_expire = strtol(fields[7], &cpp, 10)) == 0 && *cpp) {
230 /* return 0; */
231 return NULL;
232 } else if (fields[7][0] == '\0')
233 spwd.sp_expire = -1;
234
235 /*
236 * This field is reserved for future use. But it isn't supposed
237 * to have anything other than a valid integer in it.
238 */
239
240 if ((spwd.sp_flag = strtol(fields[8], &cpp, 10)) == 0 && *cpp) {
241 /* return 0; */
242 return NULL;
243 } else if (fields[8][0] == '\0')
244 spwd.sp_flag = -1;
245
246 return (&spwd);
247}
248
249/* fgetspent - get an entry from an /etc/shadow formatted stream */
250struct spwd *fgetspent(FILE *fp)
251{
252 char buf[BUFSIZ];
253 char *cp;
254
255 if (!fp)
256 /* return (0); */
257 return NULL;
258
259 if (fgets(buf, sizeof buf, fp) != (char *) 0) {
260 if ((cp = strchr(buf, '\n')))
261 *cp = '\0';
262 return (sgetspent(buf));
263 }
264 /* return 0; */
265 return NULL;
266}
267
268/*
269 * putspent - put a (struct spwd *) into the (FILE *) you provide.
270 *
271 * this was described in shadow_.h but not implemented, so here
272 * I go. -beppu
273 *
274 */
275int putspent(const struct spwd *sp, FILE *fp)
276{
277 int ret;
278
279 /* seek to end */
280 ret = fseek(fp, 0, SEEK_END);
281 if (ret == -1) {
282 /* return -1; */
283 return 1;
284 }
285
286 /* powered by fprintf */
287 fprintf(fp, "%s:%s:%ld:%ld:%ld:%ld:%ld:%ld:%s\n", sp->sp_namp, /* login name */
288 sp->sp_pwdp, /* encrypted password */
289 sp->sp_lstchg, /* date of last change */
290 sp->sp_min, /* minimum number of days between changes */
291 sp->sp_max, /* maximum number of days between changes */
292 sp->sp_warn, /* number of days of warning before password expires */
293 sp->sp_inact, /* number of days after password expires until
294 the account becomes unusable */
295 sp->sp_expire, /* days since 1/1/70 until account expires */
296 "");
297 return 0;
298}
299
300
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-14 03:51:39 +0000