allow nc to build on linux and os x

1 files changed, 17 insertions, 0 deletions

diff --git a/apps/nc/compat/accept4.c b/apps/nc/compat/accept4.c
new file mode 100644
index 0000000..278198b
--- /dev/null
+++ b/apps/nc/compat/accept4.c
@@ -0,0 +1,17 @@
+#include <sys/socket.h>
+#include <fcntl.h>
+
+int
+accept4(int s, struct sockaddr *addr, socklen_t *addrlen, int flags)
+{
+        int rets = accept(s, addr, addrlen);
+        if (rets == -1)
+                return s;
+
+        if (flags & SOCK_CLOEXEC) {
+                flags = fcntl(s, F_GETFD);
+                fcntl(rets, F_SETFD, flags | FD_CLOEXEC);
+        }
+
+        return rets;
+}