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6e86f21f71
* include/unistd.h (seteuid, setegid): Add libc_hidden_proto. * sysdeps/generic/seteuid.c (seteuid): Add libc_hidden_def. * sysdeps/generic/setegid.c (setegid): Likewise. * sysdeps/mach/hurd/seteuid.c (seteuid): Likewise. * sysdeps/mach/hurd/setegid.c (setegid): Likewise. * sysdeps/unix/bsd/seteuid.c (seteuid): Likewise. * sysdeps/unix/bsd/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/aix/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/aix/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/linux/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/linux/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/linux/i386/seteuid.c (seteuid): Likewise. Remove fallback if __ASSUME_SETRESUID_SYSCALL.
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <unistd.h>
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#ifdef __NR_setresuid
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extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
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#endif
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int
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seteuid (uid_t uid)
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{
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int result;
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/* First try the syscall. */
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#ifdef __NR_setresuid
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result = __setresuid (-1, uid, -1);
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#if __ASSUME_SETRESUID_SYSCALL > 0
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if (0)
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#else
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if (result == -1 && errno == ENOSYS)
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#endif
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/* No system call available. Use emulation. This may not work
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since `setreuid' also sets the saved user ID when UID is not
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equal to the real user ID, making it impossible to switch back. */
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#endif
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result = __setreuid (-1, uid);
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return result;
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}
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libc_hidden_def (seteuid)
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