X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Ffcntl%2Ffcntl.c;h=390ef758acfaaf9ea01db00efffc607f7888b8d3;hb=1a70198b3e5a7866bf4c62d090d8a8e28b12521a;hp=464dbf00c18901a0d7640b147b1b6ab91bfe7712;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/fcntl/fcntl.c b/src/fcntl/fcntl.c
index 464dbf00..390ef758 100644
--- a/src/fcntl/fcntl.c
+++ b/src/fcntl/fcntl.c
@@ -1,22 +1,42 @@
+#define _GNU_SOURCE
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdarg.h>
+#include <errno.h>
 #include "syscall.h"
 #include "libc.h"
 
 int fcntl(int fd, int cmd, ...)
 {
-	int r;
 	long arg;
 	va_list ap;
 	va_start(ap, cmd);
 	arg = va_arg(ap, long);
 	va_end(ap);
 	if (cmd == F_SETFL) arg |= O_LARGEFILE;
-	if (cmd == F_SETLKW) CANCELPT_BEGIN;
-	r = __syscall_fcntl(fd, cmd, arg);
-	if (cmd == F_SETLKW) CANCELPT_END;
-	return r;
+	if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, arg);
+	if (cmd == F_GETOWN) {
+		struct f_owner_ex ex;
+		int ret = __syscall(SYS_fcntl, fd, F_GETOWN_EX, &ex);
+		if (ret == -EINVAL) return __syscall(SYS_fcntl, fd, cmd, arg);
+		if (ret) return __syscall_ret(ret);
+		return ex.type == F_OWNER_PGRP ? -ex.pid : ex.pid;
+	}
+	if (cmd == F_DUPFD_CLOEXEC) {
+		int ret = __syscall(SYS_fcntl, fd, F_DUPFD_CLOEXEC, arg);
+		if (ret != -EINVAL) {
+			if (ret >= 0)
+				__syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
+			return __syscall_ret(ret);
+		}
+		ret = __syscall(SYS_fcntl, fd, F_DUPFD_CLOEXEC, 0);
+		if (ret != -EINVAL) {
+			if (ret >= 0) __syscall(SYS_close, ret);
+			return __syscall_ret(-EINVAL);
+		}
+		ret = __syscall(SYS_fcntl, fd, F_DUPFD, arg);
+		if (ret >= 0) __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
+		return __syscall_ret(ret);
+	}
+	return syscall(SYS_fcntl, fd, cmd, arg);
 }
-
-LFS64(fcntl);