2 * Copyright (C) 2007 Stig Venaas <venaas@uninett.no>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
25 static char *debug_ident = NULL;
26 static uint8_t debug_level = DBG_INFO;
27 static char *debug_filepath = NULL;
28 static FILE *debug_file = NULL;
29 static int debug_syslogfacility = 0;
30 static uint8_t debug_timestamp = 0;
32 void debug_init(char *ident) {
34 setvbuf(debug_file, NULL, _IONBF, 0);
38 void debug_set_level(uint8_t level) {
41 debug_level = DBG_ERR;
44 debug_level = DBG_WARN;
47 debug_level = DBG_INFO;
50 debug_level = DBG_DBG;
55 void debug_timestamp_on() {
59 uint8_t debug_get_level() {
63 int debug_set_destination(char *dest) {
64 static const char *facstrings[] = { "LOG_DAEMON", "LOG_MAIL", "LOG_USER", "LOG_LOCAL0",
65 "LOG_LOCAL1", "LOG_LOCAL2", "LOG_LOCAL3", "LOG_LOCAL4",
66 "LOG_LOCAL5", "LOG_LOCAL6", "LOG_LOCAL7", NULL };
67 static const int facvals[] = { LOG_DAEMON, LOG_MAIL, LOG_USER, LOG_LOCAL0,
68 LOG_LOCAL1, LOG_LOCAL2, LOG_LOCAL3, LOG_LOCAL4,
69 LOG_LOCAL5, LOG_LOCAL6, LOG_LOCAL7 };
73 if (!strncasecmp(dest, "file:///", 8)) {
74 debug_filepath = stringcopy(dest + 7, 0);
75 debug_file = fopen(debug_filepath, "a");
78 debugx(1, DBG_ERR, "Failed to open logfile %s\n%s",
79 debug_filepath, strerror(errno));
81 setvbuf(debug_file, NULL, _IONBF, 0);
84 if (!strncasecmp(dest, "x-syslog://", 11)) {
89 for (i = 0; facstrings[i]; i++)
90 if (!strcasecmp(dest, facstrings[i]))
93 debugx(1, DBG_ERR, "Unknown syslog facility %s", dest);
94 debug_syslogfacility = facvals[i];
96 debug_syslogfacility = LOG_DAEMON;
97 openlog(debug_ident, LOG_PID, debug_syslogfacility);
100 debug(DBG_ERR, "Unknown log destination, exiting %s", dest);
104 void debug_reopen_log() {
107 /* not a file, noop, return success */
108 if (!debug_filepath) {
109 debug(DBG_ERR, "skipping reopen");
113 if (debug_file != stderr)
116 debug_file = fopen(debug_filepath, "a");
118 debug(DBG_ERR, "Reopened logfile %s", debug_filepath);
121 debug(DBG_ERR, "Failed to open logfile %s, using stderr\n%s",
122 debug_filepath, strerror(errno));
124 setvbuf(debug_file, NULL, _IONBF, 0);
127 void debug_logit(uint8_t level, const char *format, va_list ap) {
132 if (debug_syslogfacility) {
135 priority = LOG_DEBUG;
141 priority = LOG_WARNING;
147 priority = LOG_DEBUG;
149 vsyslog(priority, format, ap);
151 if (debug_timestamp && (timebuf = malloc(256))) {
152 gettimeofday(&now, NULL);
153 ctime_r(&now.tv_sec, timebuf);
154 timebuf[strlen(timebuf) - 1] = '\0';
155 fprintf(debug_file, "%s: ", timebuf + 4);
158 vfprintf(debug_file, format, ap);
159 fprintf(debug_file, "\n");
163 void debug(uint8_t level, char *format, ...) {
165 if (level < debug_level)
167 va_start(ap, format);
168 debug_logit(level, format, ap);
172 void debugx(int status, uint8_t level, char *format, ...) {
173 if (level >= debug_level) {
175 va_start(ap, format);
176 debug_logit(level, format, ap);
182 void debugerrno(int err, uint8_t level, char *format, ...) {
183 if (level >= debug_level) {
185 size_t len = strlen(format);
186 char *tmp = malloc(len + 1024 + 2);
191 if (strerror_r(err, tmp + len, 1024))
193 va_start(ap, format);
194 debug_logit(level, tmp, ap);
199 void debugerrnox(int err, uint8_t level, char *format, ...) {
200 if (level >= debug_level) {
202 va_start(ap, format);
203 debugerrno(err, level, format, ap);
209 /* Local Variables: */
210 /* c-file-style: "stroustrup" */