tcp_server: always clean up connection descriptors

1 files changed, 14 insertions, 0 deletions

diff --git a/src/file.c b/src/file.c
index eb7135a..27709be 100644
--- a/src/file.c
+++ b/src/file.c
@@ -9,6 +9,7 @@
 #include "compiler.h"
 #include "log.h"
 
+#include <fcntl.h>
 #include <ftw.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -98,6 +99,19 @@ free:
 	return NULL;
 }
 
+int file_dup(int fd)
+{
+	int ret = 0;
+
+	ret = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+	if (ret < 0) {
+		log_errno("fcntl");
+		return ret;
+	}
+
+	return ret;
+}
+
 void file_close(int fd)
 {
 	log_errno_if(close(fd), "close");