xref: /freebsd/crypto/heimdal/appl/ftp/ftpd/logwtmp.c (revision 8a272653d9fbd9fc37691c9aad6a05089b4ecb4d)
1 /*
2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 RCSID("$Id$");
37 #endif
38 
39 #include <stdio.h>
40 #include <string.h>
41 #ifdef TIME_WITH_SYS_TIME
42 #include <sys/time.h>
43 #include <time.h>
44 #elif defined(HAVE_SYS_TIME_H)
45 #include <sys/time.h>
46 #else
47 #include <time.h>
48 #endif
49 #ifdef HAVE_UNISTD_H
50 #include <unistd.h>
51 #endif
52 #ifdef HAVE_FCNTL_H
53 #include <fcntl.h>
54 #endif
55 #ifdef HAVE_UTMP_H
56 #include <utmp.h>
57 #endif
58 #ifdef HAVE_UTMPX_H
59 #include <utmpx.h>
60 #endif
61 #ifdef HAVE_ASL_H
62 #include <asl.h>
63 #endif
64 #include <roken.h>
65 #include "extern.h"
66 
67 #ifndef HAVE_UTMPX_H
68 #ifndef WTMP_FILE
69 #ifdef _PATH_WTMP
70 #define WTMP_FILE _PATH_WTMP
71 #else
72 #define WTMP_FILE "/var/adm/wtmp"
73 #endif
74 #endif
75 #endif
76 
77 #ifdef HAVE_ASL_H
78 
79 #ifndef ASL_KEY_FACILITY
80 #define ASL_KEY_FACILITY "Facility"
81 #endif
82 
83 static void
84 ftpd_logwtmp_asl(char *line, char *name, char *host)
85 {
86     static aslmsg m = NULL;
87     static int init = 0;
88 
89     if (!init) {
90 	init = 1;
91 	m = asl_new(ASL_TYPE_MSG);
92 	if (m == NULL)
93 	    return;
94 	asl_set(m, ASL_KEY_FACILITY, "org.h5l.ftpd");
95     }
96     if (m)
97 	asl_log(NULL, m, ASL_LEVEL_NOTICE,
98 		"host %s/%s user %s%sconnected pid %d",
99 		host, line, name, name[0] ? " " : "dis", (int)getpid());
100 }
101 
102 #endif
103 
104 #ifndef HAVE_ASL_H
105 
106 static void
107 ftpd_logwtmp_wtmp(char *line, char *name, char *host)
108 {
109     static int init = 0;
110     static int fd;
111 #ifdef WTMPX_FILE
112     static int fdx;
113 #endif
114 #ifdef HAVE_UTMP_H
115     struct utmp ut;
116 #endif
117 #if defined(WTMPX_FILE) || defined(HAVE_UTMPX_H)
118     struct utmpx utx;
119 #endif
120 
121 #ifdef HAVE_UTMPX_H
122     memset(&utx, 0, sizeof(struct utmpx));
123 #endif
124 #ifdef HAVE_UTMP_H
125     memset(&ut, 0, sizeof(struct utmp));
126 #ifdef HAVE_STRUCT_UTMP_UT_TYPE
127     if(name[0])
128 	ut.ut_type = USER_PROCESS;
129     else
130 	ut.ut_type = DEAD_PROCESS;
131 #endif
132     strncpy(ut.ut_line, line, sizeof(ut.ut_line));
133     strncpy(ut.ut_name, name, sizeof(ut.ut_name));
134 #ifdef HAVE_STRUCT_UTMP_UT_PID
135     ut.ut_pid = getpid();
136 #endif
137 #ifdef HAVE_STRUCT_UTMP_UT_HOST
138     strncpy(ut.ut_host, host, sizeof(ut.ut_host));
139 #endif
140     ut.ut_time = time(NULL);
141 #endif
142 
143 #if defined(WTMPX_FILE) || defined(HAVE_UTMPX_H)
144     strncpy(utx.ut_line, line, sizeof(utx.ut_line));
145     strncpy(utx.ut_user, name, sizeof(utx.ut_user));
146     strncpy(utx.ut_host, host, sizeof(utx.ut_host));
147 #ifdef HAVE_STRUCT_UTMPX_UT_SYSLEN
148     utx.ut_syslen = strlen(host) + 1;
149     if (utx.ut_syslen > sizeof(utx.ut_host))
150         utx.ut_syslen = sizeof(utx.ut_host);
151 #endif
152     {
153 	struct timeval tv;
154 
155 	gettimeofday (&tv, 0);
156 	utx.ut_tv.tv_sec = tv.tv_sec;
157 	utx.ut_tv.tv_usec = tv.tv_usec;
158     }
159 
160     if(name[0])
161 	utx.ut_type = USER_PROCESS;
162     else
163 	utx.ut_type = DEAD_PROCESS;
164 #endif
165 
166 #ifdef HAVE_UTMPX_H
167     pututxline(&utx);
168 #endif
169 
170     if(!init){
171 #ifdef WTMP_FILE
172 	fd = open(WTMP_FILE, O_WRONLY|O_APPEND, 0);
173 #endif
174 #ifdef WTMPX_FILE
175 	fdx = open(WTMPX_FILE, O_WRONLY|O_APPEND, 0);
176 #endif
177 	init = 1;
178     }
179     if(fd >= 0) {
180 #ifdef WTMP_FILE
181 	write(fd, &ut, sizeof(struct utmp)); /* XXX */
182 #endif
183 #ifdef WTMPX_FILE
184 	write(fdx, &utx, sizeof(struct utmpx));
185 #endif
186     }
187 }
188 
189 #endif /* !HAVE_ASL_H */
190 
191 void
192 ftpd_logwtmp(char *line, char *name, char *host)
193 {
194 #ifdef HAVE_ASL_H
195     ftpd_logwtmp_asl(line, name, host);
196 #else
197     ftpd_logwtmp_wtmp(line, name, host);
198 #endif
199 }
200