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-rw-r--r--src/network/accept4.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/network/accept4.c b/src/network/accept4.c
index 6b5c16ce..285d8588 100644
--- a/src/network/accept4.c
+++ b/src/network/accept4.c
@@ -1,9 +1,20 @@
#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;
+ 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;
}