diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2012-10-10 15:09:53 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-02-20 13:45:11 +0100 |
| commit | d8386ad5e72b0e0583cc233d476c5b50ca66a4e5 (patch) | |
| tree | 1af1ff2a753cb3f7ec0a100a2772aa5a5f7d9796 /libc | |
| parent | 98f53c576045dbc85525ca39a913f078f84ec35d (diff) | |
lchown: Use fchownat if arch does not have the lchown syscall
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/common/lchown.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/libc/sysdeps/linux/common/lchown.c b/libc/sysdeps/linux/common/lchown.c index c0f8ce763..4d310fdcb 100644 --- a/libc/sysdeps/linux/common/lchown.c +++ b/libc/sysdeps/linux/common/lchown.c @@ -11,17 +11,26 @@ #include <unistd.h> #include <bits/wordsize.h> -#if (__WORDSIZE == 32 && defined(__NR_lchown32)) || __WORDSIZE == 64 -# ifdef __NR_lchown32 -# undef __NR_lchown -# define __NR_lchown __NR_lchown32 -# endif +#if defined __NR_fchownat && !defined __NR_lchown +# include <fcntl.h> +int lchown(const char *path, uid_t owner, gid_t group) +{ + return fchownat(AT_FDCWD, path, owner, group, AT_SYMLINK_NOFOLLOW); +} + +#else + +# if (__WORDSIZE == 32 && defined(__NR_lchown32)) || __WORDSIZE == 64 +# ifdef __NR_lchown32 +# undef __NR_lchown +# define __NR_lchown __NR_lchown32 +# endif _syscall3(int, lchown, const char *, path, uid_t, owner, gid_t, group) -#else +# else -# define __NR___syscall_lchown __NR_lchown +# define __NR___syscall_lchown __NR_lchown static __inline__ _syscall3(int, __syscall_lchown, const char *, path, __kernel_uid_t, owner, __kernel_gid_t, group) @@ -35,4 +44,6 @@ int lchown(const char *path, uid_t owner, gid_t group) return __syscall_lchown(path, owner, group); } +# endif + #endif |