extract setup of the logging subsystem into a function of its own.

Signed-off-by: Michael Adam <obnox@samba.org>

src/log.c

@@ -243,3 +243,40 @@ void send_stored_logs (void)
         vector_delete (log_message_storage);
         log_message_storage = NULL;
 }
+
+/**
+ * Initialize the logging subsystem, based on the configuration.
+ * Returns 0 upon success, -1 upon failure.
+ *
+ * This function uses fprintf() instead of log_message(), since
+ * the logging is not yet set up...
+ */
+int setup_logging (void)
+{
+        int ret = -1;
+
+        /* Write to a user supplied log file if it's defined.  This will
+         * override using the syslog even if syslog is defined. */
+        if (config.logf_name) {
+                if (open_log_file (config.logf_name) < 0) {
+                        fprintf (stderr,
+                                 "%s: Could not create log file.\n", PACKAGE);
+                        goto done;
+                }
+                config.syslog = FALSE;  /* disable syslog */
+        } else if (config.syslog) {
+                if (config.godaemon == TRUE)
+                        openlog ("tinyproxy", LOG_PID, LOG_DAEMON);
+                else
+                        openlog ("tinyproxy", LOG_PID, LOG_USER);
+        } else {
+                fprintf (stderr, "%s: Either define a logfile or "
+                         "enable syslog logging.\n", PACKAGE);
+                goto done;
+        }
+
+        ret = 0;
+
+done:
+        return ret;
+}

src/log.h

@@ -117,4 +117,6 @@ extern void log_message (int level, const char *fmt, ...);
 extern void set_log_level (int level);
 extern void send_stored_logs (void);
 
+extern int setup_logging (void);
+
 #endif

src/main.c

@@ -305,6 +305,7 @@ int
 main (int argc, char **argv)
 {
         FILE *config_file;
+        int ret;
 
         /* Only allow u+rw bits. This may be required for some versions
          * of glibc so that mkstemp() doesn't make us vulnerable.
@@ -340,23 +341,8 @@ main (int argc, char **argv)
 
         fclose (config_file);
 
-        /* Write to a user supplied log file if it's defined.  This will
+        ret = setup_logging ();
-         * override using the syslog even if syslog is defined. */
+        if (ret != 0) {
-        if (config.logf_name) {
-                if (open_log_file (config.logf_name) < 0) {
-                        fprintf (stderr,
-                                 "%s: Could not create log file.\n", argv[0]);
-                        exit (EX_SOFTWARE);
-                }
-                config.syslog = FALSE;  /* disable syslog */
-        } else if (config.syslog) {
-                if (config.godaemon == TRUE)
-                        openlog ("tinyproxy", LOG_PID, LOG_DAEMON);
-                else
-                        openlog ("tinyproxy", LOG_PID, LOG_USER);
-        } else {
-                fprintf (stderr, "%s: Either define a logfile or "
-                         "enable syslog logging.\n", argv[0]);
                 exit (EX_SOFTWARE);
         }