1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include "../common/compat.h"
30*0Sstevel@tonic-gate #include <stdio.h>
31*0Sstevel@tonic-gate #include <sys/errno.h>
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate #include <unistd.h>
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * If writing to a utmp-like file, map the utmp structure to
37*0Sstevel@tonic-gate * new format on the fly.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate extern int errno;
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate extern int conv2utmp(char *, char *, int);
42*0Sstevel@tonic-gate extern int conv2utmpx(char *, char *, int);
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate int
write(int fd,char * buf,int size)45*0Sstevel@tonic-gate write(int fd, char *buf, int size)
46*0Sstevel@tonic-gate {
47*0Sstevel@tonic-gate return (bc_write(fd, buf, size));
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate int
bc_write(int fd,char * buf,int size)51*0Sstevel@tonic-gate bc_write(int fd, char *buf, int size)
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate int ret, off;
54*0Sstevel@tonic-gate int nsize;
55*0Sstevel@tonic-gate char *nbuf;
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate if (fd_get(fd) != -1) { /* writing utmp (utmpx actually) */
58*0Sstevel@tonic-gate nsize = getmodsize(size, sizeof (struct compat_utmp),
59*0Sstevel@tonic-gate sizeof (struct utmpx));
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate if ((nbuf = (void *)malloc(nsize)) == NULL) {
62*0Sstevel@tonic-gate (void) fprintf(stderr, "write: malloc failed\n");
63*0Sstevel@tonic-gate exit(-1);
64*0Sstevel@tonic-gate }
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate (void) memset(nbuf, 0, nsize);
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate ret = conv2utmpx(nbuf, buf, size);
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate if ((ret = _write(fd, nbuf, ret)) == -1) {
71*0Sstevel@tonic-gate if (errno == EAGAIN)
72*0Sstevel@tonic-gate errno = EWOULDBLOCK;
73*0Sstevel@tonic-gate free(nbuf);
74*0Sstevel@tonic-gate return (-1);
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate
77*0Sstevel@tonic-gate free(nbuf);
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate ret = getmodsize(ret, sizeof (struct utmpx),
80*0Sstevel@tonic-gate sizeof (struct compat_utmp));
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate return (ret);
83*0Sstevel@tonic-gate }
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate if ((ret = _write(fd, buf, size)) == -1) {
86*0Sstevel@tonic-gate if (errno == EAGAIN)
87*0Sstevel@tonic-gate errno = EWOULDBLOCK;
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate return (ret);
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate }
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate /* From SunOS/SVR4 utmp.h */
94*0Sstevel@tonic-gate #define USER_PROCESS 7
95*0Sstevel@tonic-gate #define DEAD_PROCESS 8
96*0Sstevel@tonic-gate
97*0Sstevel@tonic-gate extern int
conv2utmpx(char * nbuf,char * buf,int len)98*0Sstevel@tonic-gate conv2utmpx(char *nbuf, char *buf, int len)
99*0Sstevel@tonic-gate {
100*0Sstevel@tonic-gate struct compat_utmp *ut;
101*0Sstevel@tonic-gate struct utmpx *utx;
102*0Sstevel@tonic-gate
103*0Sstevel@tonic-gate utx = (struct utmpx *) nbuf;
104*0Sstevel@tonic-gate ut = (struct compat_utmp *) buf;
105*0Sstevel@tonic-gate
106*0Sstevel@tonic-gate while ((char *)ut < (buf + len)) {
107*0Sstevel@tonic-gate (void) strcpy(utx->ut_user, ut->ut_name);
108*0Sstevel@tonic-gate (void) memset(utx->ut_id, 0, sizeof (utx->ut_id));
109*0Sstevel@tonic-gate (void) strcpy(utx->ut_line, ut->ut_line);
110*0Sstevel@tonic-gate utx->ut_pid = 0;
111*0Sstevel@tonic-gate if ((strcmp(utx->ut_user, "") == 0) &&
112*0Sstevel@tonic-gate (strcmp(utx->ut_host, "") == 0))
113*0Sstevel@tonic-gate utx->ut_type = DEAD_PROCESS;
114*0Sstevel@tonic-gate else
115*0Sstevel@tonic-gate utx->ut_type = USER_PROCESS;
116*0Sstevel@tonic-gate utx->ut_exit.e_termination = 0;
117*0Sstevel@tonic-gate utx->ut_exit.e_exit = 0;
118*0Sstevel@tonic-gate utx->ut_tv.tv_sec = ut->ut_time;
119*0Sstevel@tonic-gate utx->ut_tv.tv_usec = 0;
120*0Sstevel@tonic-gate utx->ut_session = 0;
121*0Sstevel@tonic-gate utx->ut_syslen = sizeof (ut->ut_name) + 1;
122*0Sstevel@tonic-gate (void) strcpy(utx->ut_host, ut->ut_host);
123*0Sstevel@tonic-gate ut++;
124*0Sstevel@tonic-gate utx++;
125*0Sstevel@tonic-gate }
126*0Sstevel@tonic-gate return ((char *) utx - nbuf);
127*0Sstevel@tonic-gate }
128