From e99182dab3093f1645f9e4ff216aa752d7443fb1 Mon Sep 17 00:00:00 2001 From: Laurent Bercot Date: Thu, 1 Jan 2026 13:47:45 +0000 Subject: Save/restore errno in all safe wrappers --- src/libstddjb/socket_send4.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/libstddjb/socket_send4.c') diff --git a/src/libstddjb/socket_send4.c b/src/libstddjb/socket_send4.c index 81e991f..9252b11 100644 --- a/src/libstddjb/socket_send4.c +++ b/src/libstddjb/socket_send4.c @@ -12,6 +12,7 @@ ssize_t socket_send4 (int s, char const *buf, size_t len, char const *ip, uint16_t port) { + int e = errno ; ssize_t r ; struct sockaddr_in sa ; memset(&sa, 0, sizeof sa) ; @@ -19,6 +20,7 @@ ssize_t socket_send4 (int s, char const *buf, size_t len, char const *ip, uint16 sa.sin_port = uint16_big(port) ; memcpy(&sa.sin_addr, ip, 4) ; do r = sendto(s, buf, len, 0, (struct sockaddr *)&sa, sizeof sa) ; - while ((r == -1) && (errno == EINTR)) ; + while (r == -1 && errno == EINTR) ; + if (r >= 0) errno = e ; return r ; } -- cgit v1.3.1