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/* $OpenBSD: util.c,v 1.13 2015/03/15 00:41:28 millert Exp $ */ |
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/* $NetBSD: util.c,v 1.4 1995/03/26 04:55:35 glass Exp $ */ |
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/*- |
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* Copyright (c) 1988, 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/types.h> |
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#include <ctype.h> |
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#include <pwd.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <unistd.h> |
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#include "chpass.h" |
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char * |
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ttoa(char *buf, size_t len, time_t tval) |
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{ |
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if (tval) { |
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struct tm *tp = localtime(&tval); |
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(void) strftime(buf, len, "%B %d, %Y", tp); |
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buf[len - 1] = '\0'; |
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} else if (len > 0) |
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*buf = '\0'; |
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return (buf); |
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} |
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int |
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atot(char *p, time_t *store) |
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{ |
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struct tm tm; |
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char *t; |
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if (!*p) { |
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*store = 0; |
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return (0); |
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} |
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(void) memset(&tm, 0, sizeof(tm)); |
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for (t = p; (t = strchr(t, ',')) != NULL; t++) |
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*t = ' '; |
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t = strptime(p, "%B %d %Y", &tm); |
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if (t == NULL || (*t != '\0' && *t != '\n')) |
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return 1; |
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tm.tm_isdst = -1; |
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*store = mktime(&tm); |
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if (*store == (time_t) -1) |
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return 1; |
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return (0); |
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} |
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int |
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ok_shell(char *name, char **out) |
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{ |
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char *p, *sh; |
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setusershell(); |
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while ((sh = getusershell()) != NULL) { |
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if (!strcmp(name, sh)) |
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break; |
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/* allow just shell name, but use "real" path */ |
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if ((p = strrchr(sh, '/')) && strcmp(name, p + 1) == 0) |
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break; |
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} |
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if (sh && out) |
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*out = strdup(sh); |
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endusershell(); |
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return (sh != NULL); |
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} |