diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/getresuid.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getresuid.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/getresuid.c b/sysdeps/unix/sysv/linux/getresuid.c index 09b12a5e0e..465db9cc88 100644 --- a/sysdeps/unix/sysv/linux/getresuid.c +++ b/sysdeps/unix/sysv/linux/getresuid.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1998 Free Software Foundation, Inc. +/* Copyright (C) 1998, 2000 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 @@ -24,16 +24,46 @@ #include <sysdep.h> #include <sys/syscall.h> + +#include "kernel-features.h" + #ifdef __NR_getresuid extern int __syscall_getresuid (__kernel_uid_t *ruid, __kernel_uid_t *euid, __kernel_uid_t *suid); +# ifdef __NR_getresuid32 +extern int __syscall_getresuid32 (__kernel_uid32_t *ruid, __kernel_uid32_t *euid, + __kernel_uid32_t *suid); +# if __ASSUME_32BITUIDS == 0 +/* This variable is shared with all files that need to check for 32bit + uids. */ +extern int __libc_missing_32bit_uids; +# endif +# endif /* __NR_getresuid32 */ + int getresuid (uid_t *ruid, uid_t *euid, uid_t *suid) { +# if __ASSUME_32BITUIDS > 0 + return INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid); +# else __kernel_uid_t k_ruid, k_euid, k_suid; int result; +# ifdef __NR_getresuid32 + if (!__libc_missing_32bit_uids) + { + int r; + int saved_errno = errno; + + r = INLINE_SYSCALL (getresuid32, 3, ruid, euid, suid); + if (r == 0 || errno != ENOSYS) + return r; + + __set_errno (saved_errno); + __libc_missing_32bit_uids = 1; + } +# endif /* __NR_getresuid32 */ result = INLINE_SYSCALL (getresuid, 3, &k_ruid, &k_euid, &k_suid); @@ -45,6 +75,7 @@ getresuid (uid_t *ruid, uid_t *euid, uid_t *suid) } return result; +# endif } #else # include <sysdeps/generic/getresuid.c> |