1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
*
* log-server.c
*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
*
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
*
* Created: Mon Mar 20 21:19:30 1995 ylo
*
* Server-side versions of debug(), log(), etc. These normally send the output
* to the system log.
*
*/
#include "includes.h"
RCSID("$Id: log-server.c,v 1.10 2000/05/01 23:56:42 damien Exp $");
#include <syslog.h>
#include "packet.h"
#include "xmalloc.h"
#include "ssh.h"
#ifdef HAVE___PROGNAME
extern char *__progname;
#else /* HAVE___PROGNAME */
static const char *__progname = "sshd";
#endif /* HAVE___PROGNAME */
static LogLevel log_level = SYSLOG_LEVEL_INFO;
static int log_on_stderr = 0;
static int log_facility = LOG_AUTH;
/* Initialize the log.
* av0 program name (should be argv[0])
* on_stderr print also on stderr
* level logging level
*/
void
log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
{
switch (level) {
case SYSLOG_LEVEL_QUIET:
case SYSLOG_LEVEL_ERROR:
case SYSLOG_LEVEL_FATAL:
case SYSLOG_LEVEL_INFO:
case SYSLOG_LEVEL_VERBOSE:
case SYSLOG_LEVEL_DEBUG:
log_level = level;
break;
default:
fprintf(stderr, "Unrecognized internal syslog level code %d\n",
(int) level);
exit(1);
}
switch (facility) {
case SYSLOG_FACILITY_DAEMON:
log_facility = LOG_DAEMON;
break;
case SYSLOG_FACILITY_USER:
log_facility = LOG_USER;
break;
case SYSLOG_FACILITY_AUTH:
log_facility = LOG_AUTH;
break;
case SYSLOG_FACILITY_LOCAL0:
log_facility = LOG_LOCAL0;
break;
case SYSLOG_FACILITY_LOCAL1:
log_facility = LOG_LOCAL1;
break;
case SYSLOG_FACILITY_LOCAL2:
log_facility = LOG_LOCAL2;
break;
case SYSLOG_FACILITY_LOCAL3:
log_facility = LOG_LOCAL3;
break;
case SYSLOG_FACILITY_LOCAL4:
log_facility = LOG_LOCAL4;
break;
case SYSLOG_FACILITY_LOCAL5:
log_facility = LOG_LOCAL5;
break;
case SYSLOG_FACILITY_LOCAL6:
log_facility = LOG_LOCAL6;
break;
case SYSLOG_FACILITY_LOCAL7:
log_facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "Unrecognized internal syslog facility code %d\n",
(int) facility);
exit(1);
}
log_on_stderr = on_stderr;
}
#define MSGBUFSIZ 1024
void
do_log(LogLevel level, const char *fmt, va_list args)
{
char msgbuf[MSGBUFSIZ];
char fmtbuf[MSGBUFSIZ];
char *txt = NULL;
int pri = LOG_INFO;
if (level > log_level)
return;
switch (level) {
case SYSLOG_LEVEL_ERROR:
txt = "error";
pri = LOG_ERR;
break;
case SYSLOG_LEVEL_FATAL:
txt = "fatal";
pri = LOG_ERR;
break;
case SYSLOG_LEVEL_INFO:
case SYSLOG_LEVEL_VERBOSE:
pri = LOG_INFO;
break;
case SYSLOG_LEVEL_DEBUG:
txt = "debug";
pri = LOG_DEBUG;
break;
default:
txt = "internal error";
pri = LOG_ERR;
break;
}
if (txt != NULL) {
snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
} else {
vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
}
if (log_on_stderr) {
fprintf(stderr, "%s\n", msgbuf);
} else {
openlog(__progname, LOG_PID, log_facility);
syslog(pri, "%.500s", msgbuf);
closelog();
}
}
|
