Annotation of src/usr.bin/ssh/log-server.c, Revision 1.17.2.1
1.1 deraadt 1: /*
1.11 deraadt 2: * Author: Tatu Ylonen <ylo@cs.hut.fi>
3: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4: * All rights reserved
5: * Server-side versions of debug(), log(), etc. These normally send the output
6: * to the system log.
1.14 markus 7: *
1.16 deraadt 8: * As far as I am concerned, the code I have written for this software
9: * can be used freely for any purpose. Any derived versions of this
10: * software must be clearly marked as such, and if the derived work is
11: * incompatible with the protocol description in the RFC file, it must be
12: * called by a name other than "ssh" or "Secure Shell".
13: *
14: *
15: * Copyright (c) 2000 Markus Friedl. All rights reserved.
16: *
17: * Redistribution and use in source and binary forms, with or without
18: * modification, are permitted provided that the following conditions
19: * are met:
20: * 1. Redistributions of source code must retain the above copyright
21: * notice, this list of conditions and the following disclaimer.
22: * 2. Redistributions in binary form must reproduce the above copyright
23: * notice, this list of conditions and the following disclaimer in the
24: * documentation and/or other materials provided with the distribution.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
27: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
28: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
30: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
31: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.11 deraadt 36: */
1.1 deraadt 37:
38: #include "includes.h"
1.17.2.1! jason 39: RCSID("$OpenBSD: log-server.c,v 1.20 2001/01/21 19:05:50 markus Exp $");
1.1 deraadt 40:
41: #include <syslog.h>
42: #include "packet.h"
43: #include "xmalloc.h"
1.17.2.1! jason 44: #include "log.h"
1.1 deraadt 45:
1.7 markus 46: static LogLevel log_level = SYSLOG_LEVEL_INFO;
1.1 deraadt 47: static int log_on_stderr = 0;
1.8 markus 48: static int log_facility = LOG_AUTH;
1.1 deraadt 49:
50: /* Initialize the log.
1.10 markus 51: * av0 program name (should be argv[0])
52: * on_stderr print also on stderr
53: * level logging level
54: */
1.1 deraadt 55:
1.14 markus 56: void
1.10 markus 57: log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
1.1 deraadt 58: {
1.10 markus 59: switch (level) {
60: case SYSLOG_LEVEL_QUIET:
61: case SYSLOG_LEVEL_FATAL:
1.17.2.1! jason 62: case SYSLOG_LEVEL_ERROR:
1.10 markus 63: case SYSLOG_LEVEL_INFO:
64: case SYSLOG_LEVEL_VERBOSE:
1.17 markus 65: case SYSLOG_LEVEL_DEBUG1:
66: case SYSLOG_LEVEL_DEBUG2:
67: case SYSLOG_LEVEL_DEBUG3:
1.10 markus 68: log_level = level;
69: break;
70: default:
71: fprintf(stderr, "Unrecognized internal syslog level code %d\n",
72: (int) level);
73: exit(1);
74: }
75: switch (facility) {
76: case SYSLOG_FACILITY_DAEMON:
77: log_facility = LOG_DAEMON;
78: break;
79: case SYSLOG_FACILITY_USER:
80: log_facility = LOG_USER;
81: break;
82: case SYSLOG_FACILITY_AUTH:
83: log_facility = LOG_AUTH;
84: break;
85: case SYSLOG_FACILITY_LOCAL0:
86: log_facility = LOG_LOCAL0;
87: break;
88: case SYSLOG_FACILITY_LOCAL1:
89: log_facility = LOG_LOCAL1;
90: break;
91: case SYSLOG_FACILITY_LOCAL2:
92: log_facility = LOG_LOCAL2;
93: break;
94: case SYSLOG_FACILITY_LOCAL3:
95: log_facility = LOG_LOCAL3;
96: break;
97: case SYSLOG_FACILITY_LOCAL4:
98: log_facility = LOG_LOCAL4;
99: break;
100: case SYSLOG_FACILITY_LOCAL5:
101: log_facility = LOG_LOCAL5;
102: break;
103: case SYSLOG_FACILITY_LOCAL6:
104: log_facility = LOG_LOCAL6;
105: break;
106: case SYSLOG_FACILITY_LOCAL7:
107: log_facility = LOG_LOCAL7;
108: break;
109: default:
110: fprintf(stderr, "Unrecognized internal syslog facility code %d\n",
111: (int) facility);
112: exit(1);
113: }
114: log_on_stderr = on_stderr;
1.1 deraadt 115: }
116:
1.12 deraadt 117: #define MSGBUFSIZ 1024
1.1 deraadt 118:
1.7 markus 119: void
120: do_log(LogLevel level, const char *fmt, va_list args)
1.1 deraadt 121: {
1.12 deraadt 122: char msgbuf[MSGBUFSIZ];
123: char fmtbuf[MSGBUFSIZ];
1.10 markus 124: char *txt = NULL;
125: int pri = LOG_INFO;
126: extern char *__progname;
127:
128: if (level > log_level)
129: return;
130: switch (level) {
131: case SYSLOG_LEVEL_FATAL:
132: txt = "fatal";
1.17.2.1! jason 133: pri = LOG_CRIT;
! 134: break;
! 135: case SYSLOG_LEVEL_ERROR:
! 136: txt = "error";
1.10 markus 137: pri = LOG_ERR;
138: break;
139: case SYSLOG_LEVEL_INFO:
1.17.2.1! jason 140: pri = LOG_INFO;
! 141: break;
1.10 markus 142: case SYSLOG_LEVEL_VERBOSE:
143: pri = LOG_INFO;
144: break;
1.17 markus 145: case SYSLOG_LEVEL_DEBUG1:
146: txt = "debug1";
147: pri = LOG_DEBUG;
148: break;
149: case SYSLOG_LEVEL_DEBUG2:
150: txt = "debug2";
151: pri = LOG_DEBUG;
152: break;
153: case SYSLOG_LEVEL_DEBUG3:
154: txt = "debug3";
1.10 markus 155: pri = LOG_DEBUG;
156: break;
157: default:
158: txt = "internal error";
159: pri = LOG_ERR;
160: break;
161: }
162: if (txt != NULL) {
163: snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
164: vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
165: } else {
166: vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
167: }
1.13 markus 168: if (log_on_stderr) {
1.10 markus 169: fprintf(stderr, "%s\n", msgbuf);
1.13 markus 170: } else {
171: openlog(__progname, LOG_PID, log_facility);
172: syslog(pri, "%.500s", msgbuf);
173: closelog();
174: }
1.1 deraadt 175: }
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