xref: /illumos-gate/usr/src/lib/libc/port/gen/putpwent.c (revision 2b4a78020b9c38d1b95e2f3fefa6d6e4be382d1f)
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
putpwent(const struct passwd * p,FILE * f)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 }
67