diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/setuid.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/setuid.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/setuid.c b/sysdeps/unix/sysv/linux/i386/setuid.c index 69bf42596f..a11fb7f60c 100644 --- a/sysdeps/unix/sysv/linux/i386/setuid.c +++ b/sysdeps/unix/sysv/linux/i386/setuid.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1998, 2000, 2003, 2004 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 @@ -25,6 +25,8 @@ #include <linux/posix_types.h> #include "kernel-features.h" +#include <pthread-functions.h> + #ifdef __NR_setuid32 # if __ASSUME_32BITUIDS == 0 @@ -37,8 +39,10 @@ extern int __libc_missing_32bit_uids; int __setuid (uid_t uid) { -#if __ASSUME_32BITUIDS > 0 - return INLINE_SYSCALL (setuid32, 1, uid); + int result; + +#if __ASSUME_32BITUIDS > 0 && defined __NR_setuid32 + result = INLINE_SYSCALL (setuid32, 1, uid); #else # ifdef __NR_setuid32 if (__libc_missing_32bit_uids <= 0) @@ -47,7 +51,9 @@ __setuid (uid_t uid) int saved_errno = errno; result = INLINE_SYSCALL (setuid32, 1, uid); - if (result == 0 || errno != ENOSYS) + if (result == 0) + goto out; + if (errno != ENOSYS) return result; __set_errno (saved_errno); @@ -62,7 +68,24 @@ __setuid (uid_t uid) return -1; } - return INLINE_SYSCALL (setuid, 1, uid); + result = INLINE_SYSCALL (setuid, 1, uid); +# ifdef __NR_setuid32 + out: +# endif +#endif + +#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD + if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL) + { + struct xid_command cmd; + cmd.syscall_no = __NR_setuid32; + cmd.id[0] = uid; + __libc_pthread_functions.ptr__nptl_setxid (&cmd); + } #endif + + return result; } +#ifndef __setuid weak_alias (__setuid, setuid) +#endif |