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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1999 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include "../common/compat.h"
30 #include <stdio.h>
31 #include <sys/types.h>
32 #include <unistd.h>
33
34 /*
35 * If writing to a utmp-like file, map the utmp structure to
36 * new format on the fly.
37 */
38 extern int conv2utmpx(char *, char *, int);
39
40 int
write(int fd,char * buf,int size)41 write(int fd, char *buf, int size)
42 {
43 return (bc_write(fd, buf, size));
44 }
45
46 int
bc_write(int fd,char * buf,int size)47 bc_write(int fd, char *buf, int size)
48 {
49 int ret, off;
50 int nsize;
51 char *nbuf;
52
53 if (fd_get(fd) != -1) {
54 nsize = getmodsize(size, sizeof (struct compat_utmp),
55 sizeof (struct utmpx));
56
57 if ((nbuf = (void *)malloc(nsize)) == NULL) {
58 (void) fprintf(stderr, "write: malloc failed\n");
59 exit(-1);
60 }
61
62 (void) memset(nbuf, 0, nsize);
63
64 ret = conv2utmpx(nbuf, buf, size);
65
66 if ((ret = _write(fd, nbuf, ret)) == -1) {
67 free(nbuf);
68 return (-1);
69 }
70
71 free(nbuf);
72
73 ret = getmodsize(ret, sizeof (struct utmpx),
74 sizeof (struct compat_utmp));
75 return (ret);
76 }
77
78 return (_write(fd, buf, size));
79 }
80
81 /* From SunOS/SVR4 utmp.h */
82 #define USER_PROCESS 7
83 #define DEAD_PROCESS 8
84
85 extern int
conv2utmpx(char * nbuf,char * buf,int len)86 conv2utmpx(char *nbuf, char *buf, int len)
87 {
88 struct compat_utmp *ut;
89 struct utmpx *utx;
90
91 utx = (struct utmpx *) nbuf;
92 ut = (struct compat_utmp *) buf;
93
94 while ((char *)ut < (buf + len)) {
95 (void) strcpy(utx->ut_user, ut->ut_name);
96 (void) memset(utx->ut_id, 0, sizeof (utx->ut_id));
97 (void) strcpy(utx->ut_line, ut->ut_line);
98 utx->ut_pid = 0;
99 if ((strcmp(utx->ut_user, "") == 0) &&
100 (strcmp(utx->ut_host, "") == 0))
101 utx->ut_type = DEAD_PROCESS;
102 else
103 utx->ut_type = USER_PROCESS;
104 utx->ut_exit.e_termination = 0;
105 utx->ut_exit.e_exit = 0;
106 utx->ut_tv.tv_sec = ut->ut_time;
107 utx->ut_tv.tv_usec = 0;
108 utx->ut_session = 0;
109 utx->ut_syslen = sizeof (ut->ut_name) + 1;
110 (void) strcpy(utx->ut_host, ut->ut_host);
111 ut++;
112 utx++;
113 }
114 return ((char *) utx - nbuf);
115 }
116