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1.1 root 1: /*-
2: * Copyright (c) 1988 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: static char sccsid[] = "@(#)util.c 5.13 (Berkeley) 6/29/90";
22: #endif /* not lint */
23:
24: #include <sys/types.h>
25: #include <sys/time.h>
26: #include <tzfile.h>
27: #include <pwd.h>
28: #include <stdio.h>
29: #include <string.h>
30: #include <ctype.h>
31: #include "chpass.h"
32: #include "pathnames.h"
33:
34: static int dmsize[] =
35: { -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
36: static char *months[] =
37: { "January", "February", "March", "April", "May", "June",
38: "July", "August", "September", "October", "November",
39: "December", NULL };
40: char *
41: ttoa(tval)
42: time_t tval;
43: {
44: struct tm *tp;
45: static char tbuf[50];
46:
47: if (tval) {
48: tp = localtime(&tval);
49: (void)sprintf(tbuf, "%s %d, 19%d", months[tp->tm_mon],
50: tp->tm_mday, tp->tm_year);
51: }
52: else
53: *tbuf = '\0';
54: return(tbuf);
55: }
56:
57: atot(p, store)
58: char *p;
59: time_t *store;
60: {
61: register char *t, **mp;
62: static struct tm *lt;
63: time_t tval, time();
64: int day, month, year;
65:
66: if (!*p) {
67: *store = 0;
68: return(0);
69: }
70: if (!lt) {
71: unsetenv("TZ");
72: (void)time(&tval);
73: lt = localtime(&tval);
74: }
75: if (!(t = strtok(p, " \t")))
76: goto bad;
77: for (mp = months;; ++mp) {
78: if (!*mp)
79: goto bad;
80: if (!strncasecmp(*mp, t, 3)) {
81: month = mp - months + 1;
82: break;
83: }
84: }
85: if (!(t = strtok((char *)NULL, " \t,")) || !isdigit(*t))
86: goto bad;
87: day = atoi(t);
88: if (!(t = strtok((char *)NULL, " \t,")) || !isdigit(*t))
89: goto bad;
90: year = atoi(t);
91: if (day < 1 || day > 31 || month < 1 || month > 12 || !year)
92: goto bad;
93: if (year < 100)
94: year += TM_YEAR_BASE;
95: if (year <= EPOCH_YEAR)
96: bad: return(1);
97: tval = isleap(year) && month > 2;
98: for (--year; year >= EPOCH_YEAR; --year)
99: tval += isleap(year) ?
100: DAYSPERLYEAR : DAYSPERNYEAR;
101: while (--month)
102: tval += dmsize[month];
103: tval += day;
104: tval = tval * HOURSPERDAY * MINSPERHOUR * SECSPERMIN;
105: tval -= lt->tm_gmtoff;
106: *store = tval;
107: return(0);
108: }
109:
110: /*
111: * print --
112: * print out the file for the user to edit; strange side-effect:
113: * return if the user is allowed to modify their shell.
114: */
115: print(fp, pw)
116: FILE *fp;
117: struct passwd *pw;
118: {
119: register char *p;
120: int shellval;
121: char *bp;
122: char *getusershell(), *ok_shell(), *ttoa();
123:
124: shellval = 1;
125: (void)fprintf(fp, "#Changing user database information for %s.\n",
126: pw->pw_name);
127: if (!uid) {
128: (void)fprintf(fp, "Login: %s\n", pw->pw_name);
129: (void)fprintf(fp, "Password: %s\n", pw->pw_passwd);
130: (void)fprintf(fp, "Uid [#]: %d\n", pw->pw_uid);
131: (void)fprintf(fp, "Gid [# or name]: %d\n", pw->pw_gid);
132: (void)fprintf(fp, "Change [month day year]: %s\n",
133: ttoa(pw->pw_change));
134: (void)fprintf(fp, "Expire [month day year]: %s\n",
135: ttoa(pw->pw_expire));
136: (void)fprintf(fp, "Class: %s\n", pw->pw_class);
137: (void)fprintf(fp, "Home directory: %s\n", pw->pw_dir);
138: (void)fprintf(fp, "Shell: %s\n",
139: *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
140: }
141: /* only admin can change "restricted" shells */
142: else if (ok_shell(pw->pw_shell))
143: (void)fprintf(fp, "Shell: %s\n",
144: *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
145: else
146: shellval = 0;
147: bp = pw->pw_gecos;
148: p = strsep(&bp, ",");
149: (void)fprintf(fp, "Full Name: %s\n", p ? p : "");
150: p = strsep(&bp, ",");
151: (void)fprintf(fp, "Location: %s\n", p ? p : "");
152: p = strsep(&bp, ",");
153: (void)fprintf(fp, "Office Phone: %s\n", p ? p : "");
154: p = strsep(&bp, ",");
155: (void)fprintf(fp, "Home Phone: %s\n", p ? p : "");
156: return(shellval);
157: }
158:
159: char *
160: ok_shell(name)
161: register char *name;
162: {
163: register char *p, *sh;
164: char *getusershell();
165:
166: setusershell();
167: while (sh = getusershell()) {
168: if (!strcmp(name, sh))
169: return(name);
170: /* allow just shell name, but use "real" path */
171: if ((p = rindex(sh, '/')) && !strcmp(name, p + 1))
172: return(sh);
173: }
174: return(NULL);
175: }
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