dnsproxy: Get rid of extra strlen() calls

diff --git a/src/dnsproxy.c b/src/dnsproxy.c
index 1d7a215..24aad91 100644 (file)
--- a/src/dnsproxy.c
+++ b/src/dnsproxy.c
@@ -279,6 +279,7 @@ static int append_query(unsigned char *buf, unsigned int size,
 {
        unsigned char *ptr = buf;
        char *offset;
+       int len;
 
        DBG("query %s domain %s", query, domain);
 
@@ -288,11 +289,12 @@ static int append_query(unsigned char *buf, unsigned int size,
 
                tmp = strchr(offset, '.');
                if (tmp == NULL) {
-                       if (strlen(offset) == 0)
+                       len = strlen(offset);
+                       if (len == 0)
                                break;
-                       *ptr = strlen(offset);
-                       memcpy(ptr + 1, offset, strlen(offset));
-                       ptr += strlen(offset) + 1;
+                       *ptr = len;
+                       memcpy(ptr + 1, offset, len);
+                       ptr += len + 1;
                        break;
                }
 
@@ -309,11 +311,12 @@ static int append_query(unsigned char *buf, unsigned int size,
 
                tmp = strchr(offset, '.');
                if (tmp == NULL) {
-                       if (strlen(offset) == 0)
+                       len = strlen(offset);
+                       if (len == 0)
                                break;
-                       *ptr = strlen(offset);
-                       memcpy(ptr + 1, offset, strlen(offset));
-                       ptr += strlen(offset) + 1;
+                       *ptr = len;
+                       memcpy(ptr + 1, offset, len);
+                       ptr += len + 1;
                        break;
                }