Annotation of src/usr.bin/chpass/util.c, Revision 1.13
1.13 ! millert 1: /* $OpenBSD: util.c,v 1.12 2009/10/27 23:59:36 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: util.c,v 1.4 1995/03/26 04:55:35 glass Exp $ */
3:
4: /*-
5: * Copyright (c) 1988, 1993, 1994
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.6 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #include <sys/types.h>
34:
35: #include <ctype.h>
36: #include <pwd.h>
37: #include <stdio.h>
38: #include <stdlib.h>
39: #include <string.h>
40: #include <time.h>
41: #include <unistd.h>
42:
43: #include "chpass.h"
44:
45: char *
1.5 deraadt 46: ttoa(char *buf, size_t len, time_t tval)
1.1 deraadt 47: {
1.4 deraadt 48: if (tval) {
49: struct tm *tp = localtime(&tval);
1.1 deraadt 50:
1.4 deraadt 51: (void) strftime(buf, len, "%B %d, %Y", tp);
52: buf[len - 1] = '\0';
1.5 deraadt 53: } else if (len > 0)
1.4 deraadt 54: *buf = '\0';
55: return (buf);
1.5 deraadt 56: }
1.1 deraadt 57:
58: int
1.5 deraadt 59: atot(char *p, time_t *store)
1.1 deraadt 60: {
1.4 deraadt 61: struct tm tm;
62: char *t;
1.1 deraadt 63:
64: if (!*p) {
65: *store = 0;
66: return (0);
67: }
1.4 deraadt 68: (void) memset(&tm, 0, sizeof(tm));
69: for (t = p; (t = strchr(t, ',')) != NULL; t++)
70: *t = ' ';
71: t = strptime(p, "%B %d %Y", &tm);
72: if (t == NULL || (*t != '\0' && *t != '\n'))
73: return 1;
1.10 guenther 74: tm.tm_isdst = -1;
1.4 deraadt 75: *store = mktime(&tm);
76: if (*store == (time_t) -1)
77: return 1;
1.1 deraadt 78: return (0);
79: }
80:
1.11 millert 81: int
82: ok_shell(char *name, char **out)
1.1 deraadt 83: {
84: char *p, *sh;
85:
86: setusershell();
1.4 deraadt 87: while ((sh = getusershell()) != NULL) {
1.1 deraadt 88: if (!strcmp(name, sh))
1.11 millert 89: break;
1.1 deraadt 90: /* allow just shell name, but use "real" path */
91: if ((p = strrchr(sh, '/')) && strcmp(name, p + 1) == 0)
1.11 millert 92: break;
1.1 deraadt 93: }
1.11 millert 94: if (sh && out)
95: *out = strdup(sh);
96: endusershell();
97: return (sh != NULL);
1.1 deraadt 98: }