Commit | Line | Data |
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255347ad | 1 | /*- |
8964deec KB |
2 | * Copyright (c) 1990, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
255347ad KB |
4 | * |
5 | * %sccs.include.redist.c% | |
6 | */ | |
7 | ||
8 | #ifndef lint | |
cc952d1c | 9 | static char sccsid[] = "@(#)edit.c 8.2 (Berkeley) %G%"; |
255347ad KB |
10 | #endif /* not lint */ |
11 | ||
12 | #include <sys/param.h> | |
13 | #include <sys/stat.h> | |
cc952d1c JSP |
14 | |
15 | #include <ctype.h> | |
16 | #include <err.h> | |
255347ad | 17 | #include <errno.h> |
255347ad | 18 | #include <paths.h> |
cc952d1c JSP |
19 | #include <pwd.h> |
20 | #include <stdio.h> | |
255347ad KB |
21 | #include <stdlib.h> |
22 | #include <string.h> | |
cc952d1c JSP |
23 | #include <unistd.h> |
24 | ||
25 | #include <pw_scan.h> | |
26 | #include <pw_util.h> | |
27 | ||
255347ad KB |
28 | #include "chpass.h" |
29 | ||
30 | extern char *tempname; | |
31 | ||
456319a0 KB |
32 | void |
33 | edit(pw) | |
255347ad KB |
34 | struct passwd *pw; |
35 | { | |
36 | struct stat begin, end; | |
37 | ||
255347ad KB |
38 | for (;;) { |
39 | if (stat(tempname, &begin)) | |
40 | pw_error(tempname, 1, 1); | |
456319a0 | 41 | pw_edit(1); |
255347ad KB |
42 | if (stat(tempname, &end)) |
43 | pw_error(tempname, 1, 1); | |
3148146f | 44 | if (begin.st_mtime == end.st_mtime) { |
cc952d1c | 45 | warnx("no changes made"); |
488b1124 | 46 | pw_error(NULL, 0, 0); |
255347ad KB |
47 | } |
48 | if (verify(pw)) | |
49 | break; | |
50 | pw_prompt(); | |
51 | } | |
52 | } | |
53 | ||
54 | /* | |
55 | * display -- | |
56 | * print out the file for the user to edit; strange side-effect: | |
57 | * set conditional flag if the user gets to edit the shell. | |
58 | */ | |
cc952d1c | 59 | void |
255347ad KB |
60 | display(fd, pw) |
61 | int fd; | |
62 | struct passwd *pw; | |
63 | { | |
255347ad | 64 | FILE *fp; |
cc952d1c | 65 | char *bp, *p, *ttoa(); |
255347ad KB |
66 | |
67 | if (!(fp = fdopen(fd, "w"))) | |
68 | pw_error(tempname, 1, 1); | |
69 | ||
70 | (void)fprintf(fp, | |
71 | "#Changing user database information for %s.\n", pw->pw_name); | |
72 | if (!uid) { | |
73 | (void)fprintf(fp, "Login: %s\n", pw->pw_name); | |
74 | (void)fprintf(fp, "Password: %s\n", pw->pw_passwd); | |
75 | (void)fprintf(fp, "Uid [#]: %d\n", pw->pw_uid); | |
76 | (void)fprintf(fp, "Gid [# or name]: %d\n", pw->pw_gid); | |
77 | (void)fprintf(fp, "Change [month day year]: %s\n", | |
78 | ttoa(pw->pw_change)); | |
79 | (void)fprintf(fp, "Expire [month day year]: %s\n", | |
80 | ttoa(pw->pw_expire)); | |
81 | (void)fprintf(fp, "Class: %s\n", pw->pw_class); | |
82 | (void)fprintf(fp, "Home directory: %s\n", pw->pw_dir); | |
83 | (void)fprintf(fp, "Shell: %s\n", | |
84 | *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL); | |
85 | } | |
86 | /* Only admin can change "restricted" shells. */ | |
87 | else if (ok_shell(pw->pw_shell)) | |
88 | /* | |
89 | * Make shell a restricted field. Ugly with a | |
90 | * necklace, but there's not much else to do. | |
91 | */ | |
92 | (void)fprintf(fp, "Shell: %s\n", | |
93 | *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL); | |
94 | else | |
95 | list[E_SHELL].restricted = 1; | |
96 | bp = pw->pw_gecos; | |
97 | p = strsep(&bp, ","); | |
98 | (void)fprintf(fp, "Full Name: %s\n", p ? p : ""); | |
99 | p = strsep(&bp, ","); | |
100 | (void)fprintf(fp, "Location: %s\n", p ? p : ""); | |
101 | p = strsep(&bp, ","); | |
102 | (void)fprintf(fp, "Office Phone: %s\n", p ? p : ""); | |
103 | p = strsep(&bp, ","); | |
104 | (void)fprintf(fp, "Home Phone: %s\n", p ? p : ""); | |
105 | ||
456319a0 | 106 | (void)fchown(fd, getuid(), getgid()); |
255347ad KB |
107 | (void)fclose(fp); |
108 | } | |
109 | ||
cc952d1c | 110 | int |
255347ad KB |
111 | verify(pw) |
112 | struct passwd *pw; | |
113 | { | |
cc952d1c JSP |
114 | ENTRY *ep; |
115 | char *p; | |
3148146f | 116 | struct stat sb; |
255347ad KB |
117 | FILE *fp; |
118 | int len; | |
119 | char buf[LINE_MAX]; | |
120 | ||
121 | if (!(fp = fopen(tempname, "r"))) | |
122 | pw_error(tempname, 1, 1); | |
3148146f KB |
123 | if (fstat(fileno(fp), &sb)) |
124 | pw_error(tempname, 1, 1); | |
125 | if (sb.st_size == 0) { | |
cc952d1c | 126 | warnx("corrupted temporary file"); |
3148146f KB |
127 | goto bad; |
128 | } | |
255347ad KB |
129 | while (fgets(buf, sizeof(buf), fp)) { |
130 | if (!buf[0] || buf[0] == '#') | |
131 | continue; | |
cc952d1c JSP |
132 | if (!(p = strchr(buf, '\n'))) { |
133 | warnx("line too long"); | |
255347ad KB |
134 | goto bad; |
135 | } | |
136 | *p = '\0'; | |
137 | for (ep = list;; ++ep) { | |
138 | if (!ep->prompt) { | |
cc952d1c | 139 | warnx("unrecognized field"); |
255347ad KB |
140 | goto bad; |
141 | } | |
142 | if (!strncasecmp(buf, ep->prompt, ep->len)) { | |
143 | if (ep->restricted && uid) { | |
cc952d1c JSP |
144 | warnx( |
145 | "you may not change the %s field", | |
146 | ep->prompt); | |
255347ad KB |
147 | goto bad; |
148 | } | |
cc952d1c JSP |
149 | if (!(p = strchr(buf, ':'))) { |
150 | warnx("line corrupted"); | |
255347ad KB |
151 | goto bad; |
152 | } | |
153 | while (isspace(*++p)); | |
154 | if (ep->except && strpbrk(p, ep->except)) { | |
cc952d1c JSP |
155 | warnx( |
156 | "illegal character in the \"%s\" field", | |
255347ad KB |
157 | ep->prompt); |
158 | goto bad; | |
159 | } | |
160 | if ((ep->func)(p, pw, ep)) { | |
161 | bad: (void)fclose(fp); | |
cc952d1c | 162 | return (0); |
255347ad KB |
163 | } |
164 | break; | |
165 | } | |
166 | } | |
167 | } | |
168 | (void)fclose(fp); | |
169 | ||
170 | /* Build the gecos field. */ | |
171 | len = strlen(list[E_NAME].save) + strlen(list[E_BPHONE].save) + | |
172 | strlen(list[E_HPHONE].save) + strlen(list[E_LOCATE].save) + 4; | |
cc952d1c JSP |
173 | if (!(p = malloc(len))) |
174 | err(1, NULL); | |
255347ad KB |
175 | (void)sprintf(pw->pw_gecos = p, "%s,%s,%s,%s", list[E_NAME].save, |
176 | list[E_LOCATE].save, list[E_BPHONE].save, list[E_HPHONE].save); | |
177 | ||
178 | if (snprintf(buf, sizeof(buf), | |
179 | "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s", | |
180 | pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_class, | |
181 | pw->pw_change, pw->pw_expire, pw->pw_gecos, pw->pw_dir, | |
182 | pw->pw_shell) >= sizeof(buf)) { | |
cc952d1c JSP |
183 | warnx("entries too long"); |
184 | return (0); | |
255347ad | 185 | } |
cc952d1c | 186 | return (pw_scan(buf, pw)); |
255347ad | 187 | } |