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Unified Diff: fusl/src/network/accept4.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/src/network/accept4.c
diff --git a/fusl/src/network/accept4.c b/fusl/src/network/accept4.c
new file mode 100644
index 0000000000000000000000000000000000000000..285d85887eff2201f71645f5448c25a9d802da99
--- /dev/null
+++ b/fusl/src/network/accept4.c
@@ -0,0 +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)
+{
+ 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;
+}
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