summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/seteuid.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1999-05-26 23:37:38 +0000
committerUlrich Drepper <drepper@redhat.com>1999-05-26 23:37:38 +0000
commit958f238f3619373d3dbc106d3cda3c467b3419b1 (patch)
tree9d15d47658aeaae08ee7e5e5e9d4a63d034caa49 /sysdeps/unix/sysv/linux/seteuid.c
parent475e390e80a950a8746dc0b88341742dc99014e4 (diff)
downloadglibc-958f238f3619373d3dbc106d3cda3c467b3419b1.tar.gz
glibc-958f238f3619373d3dbc106d3cda3c467b3419b1.tar.xz
glibc-958f238f3619373d3dbc106d3cda3c467b3419b1.zip
Update.
1999-05-26  Ulrich Drepper  <drepper@cygnus.com>

	* config.h.in: Add __LINUX_KERNEL_VERSION.
	* configure.in: Recognize --enable-kernel.
	* sysdeps/unix/sysv/linux/configure.in: Check for correct kernel
	headers if --enable-kernel is given and set __LINUX_KERNEL_VERSION
	appropriately.
	* sysdeps/unix/sysv/linux/init-first.c: If minimal kernel version is
	given perform runtime test.

	* sysdeps/unix/sysv/linux/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/getcwd.c: Elide compatibility code if
	minimal supported kernel is known to have the feature.
	* sysdeps/unix/sysv/linux/poll.c: Likewise.
	* sysdeps/unix/sysv/linux/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/seteuid.c: Likewise.
	* sysdeps/unix/sysv/linux/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/testrtsig.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/chown.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pwrite64.c: Likewise.

	* sysdeps/unix/sysv/linux/sysctl.c: Add __sysctl alias.
Diffstat (limited to 'sysdeps/unix/sysv/linux/seteuid.c')
-rw-r--r--sysdeps/unix/sysv/linux/seteuid.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/seteuid.c b/sysdeps/unix/sysv/linux/seteuid.c
index 20840dbfc0..15687e36e4 100644
--- a/sysdeps/unix/sysv/linux/seteuid.c
+++ b/sysdeps/unix/sysv/linux/seteuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,7 +21,9 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#ifdef __NR_setresuid
+#include "kernel-features.h"
+
+#if defined __NR_setresuid || __ASSUME_SETRESUID_SYSCALL > 0
 
 extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
 
@@ -38,11 +40,13 @@ seteuid (uid_t uid)
 
   /* First try the syscall.  */
   result = __setresuid (-1, uid, -1);
+# if __ASSUME_SETRESUID_SYSCALL == 0
   if (result == -1 && errno == ENOSYS)
     /* No system call available.  Use emulation.  This may not work
        since `setreuid' also sets the saved user ID when UID is not
        equal to the real user ID, making it impossible to switch back.  */
     result = __setreuid (-1, uid);
+# endif
 
   return result;
 }