musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/linux/accept4.c b/src/linux/accept4.c
new file mode 100644
index 00000000..6b5c16ce
--- /dev/null
+++ b/src/linux/accept4.c

@@ -0,0 +1,9 @@

+#define _GNU_SOURCE

+#include <sys/socket.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);

+}

diff --git a/src/linux/dup3.c b/src/linux/dup3.c
new file mode 100644
index 00000000..e201ef01
--- /dev/null
+++ b/src/linux/dup3.c

@@ -0,0 +1,10 @@

+#define _GNU_SOURCE

+#include <unistd.h>

+#include <errno.h>

+#include "syscall.h"

+

+int dup3(int old, int new, int flags) {

+ int r;

+ while ((r=__syscall(SYS_dup3, old, new, flags))==-EBUSY);

+ return __syscall_ret(r);

+}

diff --git a/src/linux/setns.c b/src/linux/setns.c
new file mode 100644
index 00000000..af3eb092
--- /dev/null
+++ b/src/linux/setns.c

@@ -0,0 +1,9 @@

+#define _GNU_SOURCE

+#include <sched.h>

+#include "syscall.h"

+#include "libc.h"

+

+int setns(int fd, int nstype)

+{

+ return syscall(SYS_setns, fd, nstype);

+}