GUAC-911: Add config file option for log levels.

src/guacd/conf-file.c

@@ -25,6 +25,8 @@
 #include "conf-file.h"
 #include "conf-parse.h"
 
+#include <guacamole/client.h>
+
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -72,6 +74,30 @@ static int guacd_conf_callback(const char* section, const char* param, const cha
             return 0;
         }
 
+        /* Max log level */
+        else if (strcmp(param, "log_level") == 0) {
+
+            /* Translate level name */
+            if (strcmp(value, "info") == 0)
+                config->max_log_level = GUAC_LOG_INFO;
+            else if (strcmp(value, "error") == 0)
+                config->max_log_level = GUAC_LOG_ERROR;
+            else if (strcmp(value, "warning") == 0)
+                config->max_log_level = GUAC_LOG_WARNING;
+            else if (strcmp(value, "debug") == 0)
+                config->max_log_level = GUAC_LOG_DEBUG;
+
+            /* Invalid log level */
+            else {
+                guacd_conf_parse_error = "Invalid log level. Valid levels are: \"debug\", \"info\", \"warning\", and \"error\".";
+                return 1;
+            }
+
+            /* Valid log level */
+            return 0;
+
+        }
+
     }
 
     /* SSL-specific options */
@@ -163,6 +189,7 @@ guacd_config* guacd_conf_load() {
     conf->bind_port = strdup("4822");
     conf->pidfile = NULL;
     conf->foreground = 0;
+    conf->max_log_level = GUAC_LOG_INFO;
 
 #ifdef ENABLE_SSL
     conf->cert_file = NULL;

src/guacd/conf-file.h

@@ -25,6 +25,8 @@
 
 #include "config.h"
 
+#include <guacamole/client.h>
+
 /**
  * The contents of a guacd configuration file.
  */
@@ -62,6 +64,11 @@ typedef struct guacd_config {
     char* key_file;
 #endif
 
+    /**
+     * The maximum log level to be logged by guacd.
+     */
+    guac_client_log_level max_log_level;
+
 } guacd_config;
 
 /**

src/guacd/man/guacd.conf.5

@@ -86,6 +86,19 @@ will bind to port 4822.
 .
 .SH DAEMON PARAMETERS
 .TP
+\fBlog_level\fR \fB=\fR \fILEVEL\fR
+Sets the maximum level at which
+.B guacd
+will log messages to syslog and, if running in the foreground, the console.
+Legal values are
+.B debug,
+.B info,
+.B warning,
+and
+.B error.
+The default value is
+.B info.
+.TP
 \fBpid_file\fR \fB=\fR \fIFILE\fR
 Causes
 .B guacd