X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Futils.c;h=65ba4b90402bc0df2df50fccf2f3e618c6e37597;hb=3e61c7233b087b8400c29ca7a8d079aad8b706d8;hp=797bc3f51540f00771a4275af9c47d4f58a7ace0;hpb=826ad11e419db90b66b3f76a90b54df021bb39fc;p=tinc

diff --git a/src/utils.c b/src/utils.c
index 797bc3f5..65ba4b90 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -18,11 +18,10 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "logger.h"
 #include "system.h"
-#include "xalloc.h"
-
-#include "../src/logger.h"
 #include "utils.h"
+#include "xalloc.h"
 
 static const char hexadecimals[] = "0123456789ABCDEF";
 static const char base64_original[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
@@ -181,6 +180,22 @@ unsigned int bitfield_to_int(const void *bitfield, size_t size) {
 	return value;
 }
 
+bool check_id(const char *id) {
+	if(!id || !*id)
+		return false;
+
+	for(; *id; id++)
+		if(!isalnum(*id) && *id != '_')
+			return false;
+
+	return true;
+}
+
+/* Windows doesn't define HOST_NAME_MAX. */
+#ifndef HOST_NAME_MAX
+#define HOST_NAME_MAX 255
+#endif
+
 char *replace_name(const char *name) {
 	char *ret_name;