include netinet/in.h for sockaddr_in on FreeBSD

[collectd.git] / src / common.c

diff --git a/src/common.c b/src/common.c
index 8f6cad2..c6a651d 100644 (file)
--- a/src/common.c
+++ b/src/common.c
@@ -1,6 +1,6 @@
 /**
  * collectd - src/common.c
- * Copyright (C) 2005-2008  Florian octo Forster
+ * Copyright (C) 2005-2009  Florian octo Forster
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -43,6 +43,15 @@
 # include <arpa/inet.h>
 #endif
 
+/* for getaddrinfo */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
 #ifdef HAVE_LIBKSTAT
 extern kstat_ctl_t *kc;
 #endif
@@ -837,28 +846,41 @@ int parse_identifier (char *str, char **ret_host,
        return (0);
 } /* int parse_identifier */
 
-int parse_value (const char *value, value_t *ret_value, const data_source_t ds)
+int parse_value (const char *value, value_t *ret_value, int ds_type)
 {
-       char *endptr = NULL;
-
-       if (DS_TYPE_COUNTER == ds.type)
-               ret_value->counter = (counter_t)strtoll (value, &endptr, 0);
-       else if (DS_TYPE_GAUGE == ds.type)
-               ret_value->gauge = (gauge_t)strtod (value, &endptr);
-       else {
-               ERROR ("parse_value: Invalid data source \"%s\" "
-                               "(type = %i).", ds.name, ds.type);
-               return -1;
-       }
-
-       if (value == endptr) {
-               ERROR ("parse_value: Failed to parse string as number: %s.", value);
-               return -1;
-       }
-       else if ((NULL != endptr) && ('\0' != *endptr))
-               WARNING ("parse_value: Ignoring trailing garbage after number: %s.",
-                               endptr);
-       return 0;
+  char *endptr = NULL;
+
+  switch (ds_type)
+  {
+    case DS_TYPE_COUNTER:
+      ret_value->counter = (counter_t) strtoull (value, &endptr, 0);
+      break;
+
+    case DS_TYPE_GAUGE:
+      ret_value->gauge = (gauge_t) strtod (value, &endptr);
+      break;
+
+    case DS_TYPE_DERIVE:
+      ret_value->counter = (derive_t) strtoll (value, &endptr, 0);
+      break;
+
+    case DS_TYPE_ABSOLUTE:
+      ret_value->counter = (absolute_t) strtoull (value, &endptr, 0);
+      break;
+
+    default:
+      ERROR ("parse_value: Invalid data source type: %i.", ds_type);
+      return -1;
+  }
+
+  if (value == endptr) {
+    ERROR ("parse_value: Failed to parse string as number: %s.", value);
+    return -1;
+  }
+  else if ((NULL != endptr) && ('\0' != *endptr))
+    WARNING ("parse_value: Ignoring trailing garbage after number: %s.",
+        endptr);
+  return 0;
 } /* int parse_value */
 
 int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds)
@@ -893,7 +915,7 @@ int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds)
                {
                        if ((strcmp ("U", ptr) == 0) && (ds->ds[i].type == DS_TYPE_GAUGE))
                                vl->values[i].gauge = NAN;
-                       else if (0 != parse_value (ptr, &vl->values[i], ds->ds[i]))
+                       else if (0 != parse_value (ptr, &vl->values[i], ds->ds[i].type))
                                return -1;
                }
 
@@ -1058,3 +1080,56 @@ counter_t counter_diff (counter_t old_value, counter_t new_value)
 
        return (diff);
 } /* counter_t counter_to_gauge */
+
+int service_name_to_port_number (const char *service_name)
+{
+       struct addrinfo *ai_list;
+       struct addrinfo *ai_ptr;
+       struct addrinfo ai_hints;
+       int status;
+       int service_number;
+
+       if (service_name == NULL)
+               return (-1);
+
+       ai_list = NULL;
+       memset (&ai_hints, 0, sizeof (ai_hints));
+       ai_hints.ai_family = AF_UNSPEC;
+
+       status = getaddrinfo (/* node = */ NULL, service_name,
+                       &ai_hints, &ai_list);
+       if (status != 0)
+       {
+               ERROR ("service_name_to_port_number: getaddrinfo failed: %s",
+                               gai_strerror (status));
+               return (-1);
+       }
+
+       service_number = -1;
+       for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
+       {
+               if (ai_ptr->ai_family == AF_INET)
+               {
+                       struct sockaddr_in *sa;
+
+                       sa = (void *) ai_ptr->ai_addr;
+                       service_number = (int) ntohs (sa->sin_port);
+               }
+               else if (ai_ptr->ai_family == AF_INET6)
+               {
+                       struct sockaddr_in6 *sa;
+
+                       sa = (void *) ai_ptr->ai_addr;
+                       service_number = (int) ntohs (sa->sin6_port);
+               }
+
+               if ((service_number > 0) && (service_number <= 65535))
+                       break;
+       }
+
+       freeaddrinfo (ai_list);
+
+       if ((service_number > 0) && (service_number <= 65535))
+               return (service_number);
+       return (-1);
+} /* int service_name_to_port_number */