Convert bitfields to integers in a safe way.

[oweals/tinc.git] / lib / utils.c

diff --git a/lib/utils.c b/lib/utils.c
index 56bcb0b1b35d8687be63c346ce2690e69063aff4..02b7b3443e626c268bead9bff0bccd03f094b596 100644 (file)
--- a/lib/utils.c
+++ b/lib/utils.c
@@ -100,3 +100,10 @@ const char *winerror(int err) {
 }
 #endif
 
+unsigned int bitfield_to_int(void *bitfield, size_t size) {
+       unsigned int value = 0;
+       if(size > sizeof value)
+               size = sizeof value;
+       memcpy(&value, bitfield, size);
+       return value;
+}