1 files changed, 19 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/stat/fchmod.c b/libc-top-half/musl/src/stat/fchmod.c
new file mode 100644
index 0000000..7a503ee
--- /dev/null
+++ b/libc-top-half/musl/src/stat/fchmod.c
@@ -0,0 +1,19 @@
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+#include "syscall.h"
+
+int fchmod(int fd, mode_t mode)
+{
+	int ret = __syscall(SYS_fchmod, fd, mode);
+	if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
+		return __syscall_ret(ret);
+
+	char buf[15+3*sizeof(int)];
+	__procfdname(buf, fd);
+#ifdef SYS_chmod
+	return syscall(SYS_chmod, buf, mode);
+#else
+	return syscall(SYS_fchmodat, AT_FDCWD, buf, mode);
+#endif
+}