1 /*
2 * err.c
3 *
4 * error status reporting functions
5 *
6 * David A. McGrew
7 * Cisco Systems, Inc.
8 */
9 /*
10 *
11 * Copyright(c) 2001-2006 Cisco Systems, Inc.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 *
18 * Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 *
21 * Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials provided
24 * with the distribution.
25 *
26 * Neither the name of the Cisco Systems, Inc. nor the names of its
27 * contributors may be used to endorse or promote products derived
28 * from this software without specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
33 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
34 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
35 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
36 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
37 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
41 * OF THE POSSIBILITY OF SUCH DAMAGE.
42 *
43 */
44
45 #include "err.h"
46
47 #ifdef ERR_REPORTING_SYSLOG
48 # ifdef HAVE_SYSLOG_H
49 # include <syslog.h>
50 # endif
51 #endif
52
53
54 /* err_level reflects the level of errors that are reported */
55
56 err_reporting_level_t err_level = err_level_none;
57
58 #ifdef SRTP_KERNEL_LINUX
59 err_status_t
err_reporting_init(char * ident)60 err_reporting_init(char *ident) {
61
62 return err_status_ok;
63 }
64
65 #else /* SRTP_KERNEL_LINUX */
66
67 /* err_file is the FILE to which errors are reported */
68
69 static FILE *err_file = NULL;
70
71 err_status_t
err_reporting_init(char * ident)72 err_reporting_init(char *ident) {
73 #ifdef ERR_REPORTING_SYSLOG
74 openlog(ident, LOG_PID, LOG_AUTHPRIV);
75 #endif
76
77 /*
78 * Believe it or not, openlog doesn't return an error on failure.
79 * But then, neither does the syslog() call...
80 */
81
82 #ifdef ERR_REPORTING_STDOUT
83 err_file = stdout;
84 #elif defined(USE_ERR_REPORTING_FILE)
85 /* open file for error reporting */
86 err_file = fopen(ERR_REPORTING_FILE, "w");
87 if (err_file == NULL)
88 return err_status_init_fail;
89 #endif
90
91 return err_status_ok;
92 }
93
94 void
err_report(int priority,char * format,...)95 err_report(int priority, char *format, ...) {
96 va_list args;
97
98 if (priority <= err_level) {
99
100 va_start(args, format);
101 if (err_file != NULL) {
102 vfprintf(err_file, format, args);
103 /* fprintf(err_file, "\n"); */
104 }
105 #ifdef ERR_REPORTING_SYSLOG
106 if (1) { /* FIXME: Make this a runtime option. */
107 int syslogpri;
108
109 switch (priority) {
110 case err_level_emergency:
111 syslogpri = LOG_EMERG;
112 break;
113 case err_level_alert:
114 syslogpri = LOG_ALERT;
115 break;
116 case err_level_critical:
117 syslogpri = LOG_CRIT;
118 break;
119 case err_level_error:
120 syslogpri = LOG_ERR;
121 break;
122 case err_level_warning:
123 syslogpri = LOG_WARNING;
124 break;
125 case err_level_notice:
126 syslogpri = LOG_NOTICE;
127 break;
128 case err_level_info:
129 syslogpri = LOG_INFO;
130 break;
131 case err_level_debug:
132 case err_level_none:
133 default:
134 syslogpri = LOG_DEBUG;
135 break;
136 }
137
138 vsyslog(syslogpri, format, args);
139 #endif
140 va_end(args);
141 }
142 }
143 #endif /* SRTP_KERNEL_LINUX */
144
145 void
146 err_reporting_set_level(err_reporting_level_t lvl) {
147 err_level = lvl;
148 }
149