146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/*
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* Copyright (c) 2000,2002 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
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* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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#if !defined(lint) && !defined(LINT)
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#if 0
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static char rcsid[] = "Id: pw_dup.c,v 1.2 2004/01/23 18:56:43 vixie Exp";
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#else
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__RCSID("$NetBSD: pw_dup.c,v 1.2 2010/05/06 18:53:17 christos Exp $");
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#endif
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#endif
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#include <sys/param.h>
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#if !defined(OpenBSD) || OpenBSD < 200105
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#include <pwd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <bitstring.h>
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#include "config.h"
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#include "macros.h"
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#include "structs.h"
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#include "funcs.h"
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struct passwd *
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pw_dup(const struct passwd *pw) {
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char *cp;
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size_t nsize, psize, gsize, dsize, ssize, total;
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#ifdef LOGIN_CAP
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size_t csize;
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#endif
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struct passwd *newpw;
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/* Allocate in one big chunk for easy freeing */
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total = sizeof(struct passwd);
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if (pw->pw_name) {
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nsize = strlen(pw->pw_name) + 1;
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total += nsize;
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} else
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nsize = 0;
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if (pw->pw_passwd) {
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psize = strlen(pw->pw_passwd) + 1;
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total += psize;
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} else
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psize = 0;
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#ifdef LOGIN_CAP
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if (pw->pw_class) {
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csize = strlen(pw->pw_class) + 1;
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total += csize;
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} else
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csize = 0;
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#endif /* LOGIN_CAP */
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if (pw->pw_gecos) {
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gsize = strlen(pw->pw_gecos) + 1;
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total += gsize;
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} else
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gsize = 0;
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if (pw->pw_dir) {
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dsize = strlen(pw->pw_dir) + 1;
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total += dsize;
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} else
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dsize = 0;
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if (pw->pw_shell) {
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ssize = strlen(pw->pw_shell) + 1;
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total += ssize;
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} else
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ssize = 0;
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if ((newpw = malloc(total)) == NULL)
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return (NULL);
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cp = (char *)(void *)newpw;
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/*
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* Copy in passwd contents and make strings relative to space
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* at the end of the buffer.
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*/
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(void)memcpy(newpw, pw, sizeof(struct passwd));
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cp += sizeof(struct passwd);
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if (pw->pw_name) {
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(void)memcpy(cp, pw->pw_name, nsize);
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newpw->pw_name = cp;
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cp += nsize;
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}
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if (pw->pw_passwd) {
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(void)memcpy(cp, pw->pw_passwd, psize);
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newpw->pw_passwd = cp;
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cp += psize;
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}
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#ifdef LOGIN_CAP
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if (pw->pw_class) {
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(void)memcpy(cp, pw->pw_class, csize);
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newpw->pw_class = cp;
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cp += csize;
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}
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#endif /* LOGIN_CAP */
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if (pw->pw_gecos) {
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(void)memcpy(cp, pw->pw_gecos, gsize);
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newpw->pw_gecos = cp;
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cp += gsize;
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}
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if (pw->pw_dir) {
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(void)memcpy(cp, pw->pw_dir, dsize);
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newpw->pw_dir = cp;
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cp += dsize;
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}
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if (pw->pw_shell) {
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(void)memcpy(cp, pw->pw_shell, ssize);
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newpw->pw_shell = cp;
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cp += ssize;
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}
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return (newpw);
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}
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#endif /* !OpenBSD || OpenBSD < 200105 */
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