1 files changed, 3 insertions, 1 deletions
diff --git a/src/libstddjb/socket_recv4.c b/src/libstddjb/socket_recv4.c
index afaaa9a..d9484bf 100644
--- a/src/libstddjb/socket_recv4.c
+++ b/src/libstddjb/socket_recv4.c
@@ -12,12 +12,14 @@
 
 ssize_t socket_recv4 (int s, char *buf, size_t len, char *ip, uint16_t *port)
 {
+  int e = errno ;
   ssize_t r ;
   struct sockaddr_in sa ;
   socklen_t dummy = sizeof sa ;
   do r = recvfrom(s, buf, len, 0, (struct sockaddr *)&sa, &dummy) ;
-  while ((r == -1) && (errno == EINTR)) ;
+  while (r == -1 && errno == EINTR) ;
   if (r == -1) return -1 ;
+  errno = e ;
   memcpy(ip, &sa.sin_addr, 4) ;
   *port = uint16_big(sa.sin_port) ;
   return r ;