X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Ffcntl%2Ffcntl.c;h=d3bff5c486808ec43e5e26fdd9087c89852e33ac;hb=e4235d70672d9751d7718ddc2b52d0b426430768;hp=cc3d6cce95b036bfa84301f8dd0e83be314b5c43;hpb=8e8ddeff7eee6294e24c0a9a29053164f990f1b3;p=musl

diff --git a/src/fcntl/fcntl.c b/src/fcntl/fcntl.c
index cc3d6cce..d3bff5c4 100644
--- a/src/fcntl/fcntl.c
+++ b/src/fcntl/fcntl.c
@@ -1,20 +1,48 @@
+#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, ...)
 {
-	long arg;
+	unsigned long arg;
 	va_list ap;
 	va_start(ap, cmd);
-	arg = va_arg(ap, long);
+	arg = va_arg(ap, unsigned long);
 	va_end(ap);
 	if (cmd == F_SETFL) arg |= O_LARGEFILE;
-	if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, arg);
-	if (cmd == F_GETOWN) return __syscall(SYS_fcntl, fd, cmd, arg);
-	return syscall(SYS_fcntl, fd, cmd, arg);
+	if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, (void *)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, (void *)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);
+	}
+	switch (cmd) {
+	case F_SETLK:
+	case F_GETLK:
+	case F_GETOWN_EX:
+	case F_SETOWN_EX:
+		return syscall(SYS_fcntl, fd, cmd, (void *)arg);
+	default:
+		return syscall(SYS_fcntl, fd, cmd, arg);
+	}
 }
-
-LFS64(fcntl);