added logging to file and syslog (need to add support for specifying facility)

[radsecproxy.git] / debug.c

diff --git a/debug.c b/debug.c
index 3959987..e5908e2 100644 (file)
--- a/debug.c
+++ b/debug.c
@@ -10,22 +10,101 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <string.h>
+#include <strings.h>
+#include <time.h>
+#include <sys/time.h>
+#include <syslog.h>
+#include <errno.h>
 #include "debug.h"
 
+static char *debug_ident = NULL;
 static uint8_t debug_level = DBG_WARN;
+static FILE *debug_file = NULL;
+static int debug_syslogfacility = 0;
+
+void debug_init(char *ident) {
+    debug_file = stderr;
+    setvbuf(debug_file, NULL, _IONBF, 0);
+    debug_ident = ident;
+}
 
 void debug_set_level(uint8_t level) {
     debug_level = level;
 }
 
+uint8_t debug_get_level() {
+    return debug_level;
+}
+
+int debug_set_destination(char *dest) {
+    extern int errno;
+    
+    if (!strncasecmp(dest, "file:///", 8)) {
+       debug_file = fopen(dest + 7, "a");
+       if (!debug_file)
+           debugx(1, DBG_ERR, "Failed to open logfile %s\n%s",
+                  dest + 7, strerror(errno));
+       setvbuf(debug_file, NULL, _IONBF, 0);
+       return 1;
+    }
+    if (!strcasecmp(dest, "x-syslog://")) {
+       debug_syslogfacility = LOG_DAEMON;
+       openlog(debug_ident, LOG_PID, debug_syslogfacility);
+       return 1;
+    }
+    return 0;
+}
+
+void debug_logit(uint8_t level, const char *format, va_list ap) {
+    struct timeval now;
+    char *timebuf;
+    int priority;
+    
+    if (debug_syslogfacility) {
+       switch (level) {
+       case DBG_INFO:
+           priority = LOG_INFO;
+           break;
+       case DBG_WARN:
+           priority = LOG_WARNING;
+           break;
+       case DBG_ERR:
+           priority = LOG_ERR;
+           break;
+       default:
+           priority = LOG_DEBUG;
+       }
+       vsyslog(priority, format, ap);
+    } else {
+       timebuf = malloc(256);
+       if (timebuf) {
+           gettimeofday(&now, NULL);
+           ctime_r(&now.tv_sec, timebuf);
+           timebuf[strlen(timebuf) - 1] = '\0';
+           fprintf(debug_file, "%s: ", timebuf);
+           free(timebuf);
+       }
+       vfprintf(debug_file, format, ap);
+       fprintf(debug_file, "\n");
+    }
+}
+
 void debug(uint8_t level, char *format, ...) {
+    va_list ap;
+    if (level < debug_level)
+       return;
+    va_start(ap, format);
+    debug_logit(level, format, ap);
+    va_end(ap);
+}
+
+void debugx(int status, uint8_t level, char *format, ...) {
     if (level >= debug_level) {
        va_list ap;
        va_start(ap, format);
-       vfprintf(stderr, format, ap);
+       debug_logit(level, format, ap);
        va_end(ap);
-       fprintf(stderr, "\n");
     }
-    if (level >= DBG_ERR)
-       exit(1);
+    exit(status);
 }