conntrack plugin: Use parse_value_file().

diff --git a/src/conntrack.c b/src/conntrack.c
index ce90ede..4a72b2f 100644 (file)
--- a/src/conntrack.c
+++ b/src/conntrack.c
@@ -74,61 +74,26 @@ static void conntrack_submit (const char *type, const char *type_instance,
 static int conntrack_read (void)
 {
        value_t conntrack, conntrack_max, conntrack_pct;
-       FILE *fh;
-       char buffer[64] = { 0 };
-       size_t buffer_len;
 
-       fh = fopen (old_files?CONNTRACK_FILE_OLD:CONNTRACK_FILE, "r");
-       if (fh == NULL)
-               return (-1);
-
-       if (fgets (buffer, sizeof (buffer), fh) == NULL)
+       char const *path = old_files ? CONNTRACK_FILE_OLD : CONNTRACK_FILE;
+       if (parse_value_file (path, &conntrack, DS_TYPE_GAUGE) != 0)
        {
-               fclose (fh);
+               ERROR ("conntrack plugin: Reading \"%s\" failed.", path);
                return (-1);
        }
-       fclose (fh);
 
-       /* strip trailing newline. */
-       buffer_len = strlen (buffer);
-       while ((buffer_len > 0) && isspace ((int) buffer[buffer_len - 1]))
+       path = old_files ? CONNTRACK_MAX_FILE_OLD : CONNTRACK_MAX_FILE;
+       if (parse_value_file (path, &conntrack_max, DS_TYPE_GAUGE) != 0)
        {
-               buffer[buffer_len - 1] = 0;
-               buffer_len--;
-       }
-
-       if (parse_value (buffer, &conntrack, DS_TYPE_GAUGE) != 0)
-               return (-1);
-
-       conntrack_submit ("conntrack", NULL, conntrack);
-
-       fh = fopen (old_files?CONNTRACK_MAX_FILE_OLD:CONNTRACK_MAX_FILE, "r");
-       if (fh == NULL)
-               return (-1);
-
-       memset (buffer, 0, sizeof (buffer));
-       if (fgets (buffer, sizeof (buffer), fh) == NULL)
-       {
-               fclose (fh);
+               ERROR ("conntrack plugin: Reading \"%s\" failed.", path);
                return (-1);
        }
-       fclose (fh);
-
-       /* strip trailing newline. */
-       buffer_len = strlen (buffer);
-       while ((buffer_len > 0) && isspace ((int) buffer[buffer_len - 1]))
-       {
-               buffer[buffer_len - 1] = 0;
-               buffer_len--;
-       }
-
-       if (parse_value (buffer, &conntrack_max, DS_TYPE_GAUGE) != 0)
-               return (-1);
 
-       conntrack_submit ("conntrack", "max", conntrack_max);
        conntrack_pct.gauge = (conntrack.gauge / conntrack_max.gauge) * 100;
-       conntrack_submit ("percent", "used", conntrack_pct);
 
+       conntrack_submit ("conntrack", NULL,   conntrack);
+       conntrack_submit ("conntrack", "max",  conntrack_max);
+       conntrack_submit ("percent",   "used", conntrack_pct);
 
        return (0);
 } /* static int conntrack_read */