diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/chown.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/chown.c | 79 |
1 files changed, 11 insertions, 68 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/chown.c b/sysdeps/unix/sysv/linux/i386/chown.c index b87605f602..c8e53e4e00 100644 --- a/sysdeps/unix/sysv/linux/i386/chown.c +++ b/sysdeps/unix/sysv/linux/i386/chown.c @@ -1,5 +1,4 @@ -/* Copyright (C) 1998,1999,2000,2002,2003,2004,2006 - Free Software Foundation, Inc. +/* Copyright (C) 1998-2012 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 @@ -42,64 +41,22 @@ extern int __chown_is_lchown (const char *__file, uid_t __owner, extern int __real_chown (const char *__file, uid_t __owner, gid_t __group); -#if defined __NR_lchown || __ASSUME_LCHOWN_SYSCALL > 0 -/* Running under Linux > 2.1.80. */ - -# ifdef __NR_chown32 +#ifdef __NR_chown32 # 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_chown32 */ +# endif +#endif /* __NR_chown32 */ int __real_chown (const char *file, uid_t owner, gid_t group) { -# if __ASSUME_LCHOWN_SYSCALL == 0 - static int __libc_old_chown; - int result; - - if (!__libc_old_chown) - { - int saved_errno = errno; -# ifdef __NR_chown32 - if (__libc_missing_32bit_uids <= 0) - { - int result; - int saved_errno = errno; - - result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group); - if (result == 0 || errno != ENOSYS) - return result; - - __set_errno (saved_errno); - __libc_missing_32bit_uids = 1; - } -# endif /* __NR_chown32 */ - if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U)) - || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U))) - { - __set_errno (EINVAL); - return -1; - } - - result = INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group); - - if (result >= 0 || errno != ENOSYS) - return result; - - __set_errno (saved_errno); - __libc_old_chown = 1; - } - - return __lchown (file, owner, group); -# elif __ASSUME_32BITUIDS - /* This implies __ASSUME_LCHOWN_SYSCALL. */ +#if __ASSUME_32BITUIDS return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group); -# else - /* !__ASSUME_32BITUIDS && ASSUME_LCHOWN_SYSCALL */ -# ifdef __NR_chown32 +#else + /* !__ASSUME_32BITUIDS */ +# ifdef __NR_chown32 if (__libc_missing_32bit_uids <= 0) { int result; @@ -112,7 +69,7 @@ __real_chown (const char *file, uid_t owner, gid_t group) __set_errno (saved_errno); __libc_missing_32bit_uids = 1; } -# endif /* __NR_chown32 */ +# endif /* __NR_chown32 */ if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U)) || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U))) { @@ -121,19 +78,11 @@ __real_chown (const char *file, uid_t owner, gid_t group) } return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group); -# endif -} #endif +} -#if !defined __NR_lchown && __ASSUME_LCHOWN_SYSCALL == 0 -/* Compiling under older kernels. */ -int -__chown_is_lchown (const char *file, uid_t owner, gid_t group) -{ - return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group); -} -#elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) /* Compiling for compatibiity. */ int attribute_compat_text_section @@ -147,12 +96,6 @@ __chown_is_lchown (const char *file, uid_t owner, gid_t group) compat_symbol (libc, __chown_is_lchown, chown, GLIBC_2_0); #endif -#ifdef __NR_lchown versioned_symbol (libc, __real_chown, chown, GLIBC_2_1); strong_alias (__real_chown, __chown) -#else -strong_alias (__chown_is_lchown, __chown_is_lchown21) -versioned_symbol (libc, __chown_is_lchown21, chown, GLIBC_2_1); -strong_alias (__chown_is_lchown, __chown) -#endif libc_hidden_def (__chown) |