X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Faccept4.c;h=765a38edc37d832c9930e5cd56af347cddf3d051;hb=c499c1084eaccd83e4b6e60883a5d92df0202c5e;hp=6b5c16cebe53cb772bf8e7933c5bcc09463e046d;hpb=dc62790deec183697489d5fddea03c82f725e7fd;p=musl

diff --git a/src/network/accept4.c b/src/network/accept4.c
index 6b5c16ce..765a38ed 100644
--- a/src/network/accept4.c
+++ b/src/network/accept4.c
@@ -1,9 +1,23 @@
 #define _GNU_SOURCE
 #include <sys/socket.h>
+#include <errno.h>
+#include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int accept4(int fd, struct sockaddr *restrict addr, socklen_t *restrict len, int flg)
 {
-	return socketcall_cp(accept4, fd, addr, len, flg, 0, 0);
+	if (!flg) return accept(fd, addr, len);
+	int ret = socketcall_cp(accept4, fd, addr, len, flg, 0, 0);
+	if (ret>=0 || (errno != ENOSYS && errno != EINVAL)) return ret;
+	if (flg & ~(SOCK_CLOEXEC|SOCK_NONBLOCK)) {
+		errno = EINVAL;
+		return -1;
+	}
+	ret = accept(fd, addr, len);
+	if (ret<0) return ret;
+	if (flg & SOCK_CLOEXEC)
+		__syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
+	if (flg & SOCK_NONBLOCK)
+		__syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK);
+	return ret;
 }