usr/src/lib/libc/port/gen/putpwent.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * format a password file entry
  32  */
  33
  34 #include "lint.h"
  35 #include <sys/types.h>
  36 #include <stdio.h>
  37 #include <pwd.h>
  38
  39 int
  40 putpwent(const struct passwd *p, FILE *f)
  41 {
  42         int black_magic;
  43
  44         (void) fprintf(f, "%s:%s", p->pw_name,
  45             p->pw_passwd ? p->pw_passwd : "");
  46         if (((p->pw_age) != NULL) && ((*p->pw_age) != '\0'))
  47                 (void) fprintf(f, ",%s", p->pw_age); /* fatal "," */
  48         black_magic = (*p->pw_name == '+' || *p->pw_name == '-');
  49         /* leading "+/-"  taken from getpwnam_r.c */
  50         if (black_magic) {
  51                 (void) fprintf(f, ":::%s:%s:%s",
  52                     p->pw_gecos ? p->pw_gecos : "",
  53                     p->pw_dir ? p->pw_dir : "",
  54                     p->pw_shell ? p->pw_shell : "");
  55         } else { /* "normal case" */
  56                 (void) fprintf(f, ":%u:%u:%s:%s:%s",
  57                     p->pw_uid,
  58                     p->pw_gid,
  59                     p->pw_gecos,
  60                     p->pw_dir,
  61                     p->pw_shell);
  62         }
  63         (void) putc('\n', f);
  64         (void) fflush(f);
  65         return (ferror(f));
  66 }