/*
* Copyright (c) 2000,2002 Todd C. Miller <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
#if !defined(lint) && !defined(LINT)
#if 0
static char rcsid[] = "Id: pw_dup.c,v 1.2 2004/01/23 18:56:43 vixie Exp";
#else
__RCSID("$NetBSD: pw_dup.c,v 1.2 2010/05/06 18:53:17 christos Exp $");
#endif
#endif

#include <sys/param.h>

#if !defined(OpenBSD) || OpenBSD < 200105

#include <pwd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <bitstring.h>

#include "config.h"
#include "macros.h"
#include "structs.h"
#include "funcs.h"

struct passwd *
pw_dup(const struct passwd *pw) {
       char            *cp;
       size_t           nsize, psize, gsize, dsize, ssize, total;
#ifdef LOGIN_CAP
       size_t           csize;
#endif
       struct passwd   *newpw;

       /* Allocate in one big chunk for easy freeing */
       total = sizeof(struct passwd);
       if (pw->pw_name) {
               nsize = strlen(pw->pw_name) + 1;
               total += nsize;
       } else
               nsize = 0;
       if (pw->pw_passwd) {
               psize = strlen(pw->pw_passwd) + 1;
               total += psize;
       } else
               psize = 0;
#ifdef LOGIN_CAP
       if (pw->pw_class) {
               csize = strlen(pw->pw_class) + 1;
               total += csize;
       } else
               csize = 0;
#endif /* LOGIN_CAP */
       if (pw->pw_gecos) {
               gsize = strlen(pw->pw_gecos) + 1;
               total += gsize;
       } else
               gsize = 0;
       if (pw->pw_dir) {
               dsize = strlen(pw->pw_dir) + 1;
               total += dsize;
       } else
               dsize = 0;
       if (pw->pw_shell) {
               ssize = strlen(pw->pw_shell) + 1;
               total += ssize;
       } else
               ssize = 0;
       if ((newpw = malloc(total)) == NULL)
               return (NULL);
       cp = (char *)(void *)newpw;

       /*
        * Copy in passwd contents and make strings relative to space
        * at the end of the buffer.
        */
       (void)memcpy(newpw, pw, sizeof(struct passwd));
       cp += sizeof(struct passwd);
       if (pw->pw_name) {
               (void)memcpy(cp, pw->pw_name, nsize);
               newpw->pw_name = cp;
               cp += nsize;
       }
       if (pw->pw_passwd) {
               (void)memcpy(cp, pw->pw_passwd, psize);
               newpw->pw_passwd = cp;
               cp += psize;
       }
#ifdef LOGIN_CAP
       if (pw->pw_class) {
               (void)memcpy(cp, pw->pw_class, csize);
               newpw->pw_class = cp;
               cp += csize;
       }
#endif /* LOGIN_CAP */
       if (pw->pw_gecos) {
               (void)memcpy(cp, pw->pw_gecos, gsize);
               newpw->pw_gecos = cp;
               cp += gsize;
       }
       if (pw->pw_dir) {
               (void)memcpy(cp, pw->pw_dir, dsize);
               newpw->pw_dir = cp;
               cp += dsize;
       }
       if (pw->pw_shell) {
               (void)memcpy(cp, pw->pw_shell, ssize);
               newpw->pw_shell = cp;
               cp += ssize;
       }

       return (newpw);
}

#endif /* !OpenBSD || OpenBSD < 200105 */

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.