src/configfile.[ch]: Add cf_util_get_service() for getting service names.

Change-Id: I310c0d076a82927958fba04dd9eedbc706742dce

diff --git a/src/configfile.c b/src/configfile.c
index 7c8347b15b20a1aa8d73011a1255105f5937035e..4fe50cc2e11ee71a00dcd53bd843460cf68a5973 100644 (file)
--- a/src/configfile.c
+++ b/src/configfile.c
@@ -1094,6 +1094,54 @@ int cf_util_get_port_number (const oconfig_item_t *ci) /* {{{ */
        return (tmp);
 } /* }}} int cf_util_get_port_number */
 
+int cf_util_get_service (const oconfig_item_t *ci, char **ret_string) /* {{{ */
+{
+       int port;
+       char *service;
+       int status;
+
+       if (ci->values_num != 1)
+       {
+               ERROR ("cf_util_get_service: The %s option requires exactly "
+                               "one argument.", ci->key);
+               return (-1);
+       }
+
+       if (ci->values[0].type == OCONFIG_TYPE_STRING)
+               return (cf_util_get_string (ci, ret_string));
+       if (ci->values[0].type != OCONFIG_TYPE_NUMBER)
+       {
+               ERROR ("cf_util_get_service: The %s option requires "
+                               "exactly one string or numeric argument.",
+                               ci->key);
+       }
+
+       port = 0;
+       status = cf_util_get_int (ci, &port);
+       if (status != 0)
+               return (status);
+       else if ((port < 1) || (port > 65535))
+       {
+               ERROR ("cf_util_get_service: The port number given "
+                               "for the %s option is out of "
+                               "range (%i).", ci->key, port);
+               return (-1);
+       }
+
+       service = malloc (6);
+       if (service == NULL)
+       {
+               ERROR ("cf_util_get_service: Out of memory.");
+               return (-1);
+       }
+       ssnprintf (service, 6, "%i", port);
+
+       sfree (*ret_string);
+       *ret_string = service;
+
+       return (0);
+} /* }}} int cf_util_get_service */
+
 int cf_util_get_cdtime (const oconfig_item_t *ci, cdtime_t *ret_value) /* {{{ */
 {
        if ((ci == NULL) || (ret_value == NULL))

diff --git a/src/configfile.h b/src/configfile.h
index e63a0ea047533257bde40be867bc0394060a884f..fbeafff8b956b01451b3fc714ec3107305ca1577 100644 (file)
--- a/src/configfile.h
+++ b/src/configfile.h
@@ -116,6 +116,12 @@ int cf_util_get_flag (const oconfig_item_t *ci,
  * failure. */
 int cf_util_get_port_number (const oconfig_item_t *ci);
 
+/* Assures that the config option is either a service name (a string) or a port
+ * number (an integer in the appropriate range) and returns a newly allocated
+ * string. If ret_string points to a non-NULL pointer, it is freed before
+ * assigning a new value. */
+int cf_util_get_service (const oconfig_item_t *ci, char **ret_string);
+
 int cf_util_get_cdtime (const oconfig_item_t *ci, cdtime_t *ret_value);
 
 #endif /* defined(CONFIGFILE_H) */