/* Get information about the file NAME in BUF. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
int result;
INTERNAL_SYSCALL_DECL (err);
#ifdef STAT_IS_KERNEL_STAT
# define kst (*st)
#else
struct kernel_stat kst;
#endif
#ifdef __NR_newfstatat
# ifndef __ASSUME_ATFCTS
if (__have_atfcts >= 0)
# endif
{
result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag);
# ifndef __ASSUME_ATFCTS
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)
&& INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS)
__have_atfcts = -1;
else
# endif
if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1))
{
#ifdef STAT_IS_KERNEL_STAT
return 0;
#else
return __xstat_conv (vers, &kst, st);
#endif
}
else
{
__set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
return -1;
}
}
#endif
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
if (__builtin_expect (filelen == 0, 0))
{
__set_errno (ENOENT);
return -1;
}
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
if (vers == _STAT_VER_KERNEL)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, file,
(struct kernel_stat *) st);
else
result = INTERNAL_SYSCALL (stat, err, 2, file,
(struct kernel_stat *) st);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return result;
}
#ifdef STAT_IS_KERNEL_STAT
else
{
__set_errno (EINVAL);
return -1;
}
#else
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, file, &kst);
else
result = INTERNAL_SYSCALL (stat, err, 2, file, &kst);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat_conv (vers, &kst, st);
#endif
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
return -1;
}
int
fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
{
int result;
#ifdef __NR_fchownat
# ifndef __ASSUME_ATFCTS
if (__have_atfcts >= 0)
# endif
{
result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag);
# ifndef __ASSUME_ATFCTS
if (result == -1 && errno == ENOSYS)
__have_atfcts = -1;
else
# endif
return result;
}
#endif
#ifndef __ASSUME_ATFCTS
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
if (__builtin_expect (filelen == 0, 0))
{
__set_errno (ENOENT);
return -1;
}
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
INTERNAL_SYSCALL_DECL (err);
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file), owner,
group);
else
result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
group);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
{
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
return -1;
}
return result;
#endif
}
int
fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
{
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
if (__builtin_expect (filelen == 0, 0))
{
__set_errno (ENOENT);
return -1;
}
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
int result;
INTERNAL_SYSCALL_DECL (err);
#if __ASSUME_32BITUIDS > 0
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file), owner,
group);
else
result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
group);
#else
# ifdef __NR_chown32
if (__libc_missing_32bit_uids <= 0)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown32, err, 3, CHECK_STRING (file),
owner, group);
else
result = INTERNAL_SYSCALL (chown32, err, 3, CHECK_STRING (file), owner,
group);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return result;
if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
goto fail;
__libc_missing_32bit_uids = 1;
}
# endif /* __NR_chown32 */
if (((owner + 1) > (gid_t) ((__kernel_uid_t) -1U))
|| ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
{
__set_errno (EINVAL);
return -1;
}
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown, err, 3, CHECK_STRING (file), owner,
group);
else
result = INTERNAL_SYSCALL (chown, err, 3, CHECK_STRING (file), owner,
group);
#endif
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
{
fail:
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
result = -1;
}
return result;
}
/* Get information about the file NAME relative to FD in ST. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
if (vers != _STAT_VER_KERNEL && vers != _STAT_VER_LINUX)
{
__set_errno (EINVAL);
return -1;
}
int res;
#ifdef __NR_newfstatat
# ifndef __ASSUME_ATFCTS
if (__have_atfcts >= 0)
# endif
{
res = INLINE_SYSCALL (newfstatat, 4, fd, file, st, flag);
# ifndef __ASSUME_ATFCTS
if (res == -1 && errno == ENOSYS)
__have_atfcts = -1;
else
# endif
return res;
}
#endif
#ifndef __ASSUME_ATFCTS
if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
if (__builtin_expect (filelen == 0, 0))
{
__set_errno (ENOENT);
return -1;
}
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
INTERNAL_SYSCALL_DECL (err);
if (flag & AT_SYMLINK_NOFOLLOW)
res = INTERNAL_SYSCALL (lstat, err, 2, file, CHECK_1 (st));
else
res = INTERNAL_SYSCALL (stat, err, 2, file, CHECK_1 (st));
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
{
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (res, err), fd, buf);
res = -1;
}
return res;
#endif
}
/* Get information about the file NAME relative to FD in ST. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
int result;
INTERNAL_SYSCALL_DECL (err);
struct stat64 st64;
#ifdef __NR_fstatat64
# ifndef __ASSUME_ATFCTS
if (__have_atfcts >= 0)
# endif
{
result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, &st64, flag);
# ifndef __ASSUME_ATFCTS
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)
&& INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS)
__have_atfcts = -1;
else
# endif
if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat32_conv (vers, &st64, st);
else
{
__set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
return -1;
}
}
#endif
#ifndef __ASSUME_ATFCTS
if (__builtin_expect (flag & ~AT_SYMLINK_NOFOLLOW, 0))
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
# if __ASSUME_STAT64_SYSCALL == 0
struct kernel_stat kst;
# endif
if (vers == _STAT_VER_KERNEL)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file),
CHECK_1 ((struct kernel_stat *) st));
else
result = INTERNAL_SYSCALL (stat, err, 2, CHECK_STRING (file),
CHECK_1 ((struct kernel_stat *) st));
goto out;
}
# if __ASSUME_STAT64_SYSCALL > 0
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
__ptrvalue (&st64));
else
result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
__ptrvalue (&st64));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat32_conv (vers, &st64, st);
# else
# if defined __NR_stat64
/* To support 32 bit UIDs, we have to use stat64. The normal stat
call only returns 16 bit UIDs. */
if (! __have_no_stat64)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
__ptrvalue (&st64));
else
result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
__ptrvalue (&st64));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
result = __xstat32_conv (vers, &st64, st);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)
|| INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
goto out;
__have_no_stat64 = 1;
}
# endif
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file),
__ptrvalue (&kst));
else
result = INTERNAL_SYSCALL (stat, err, 2, CHECK_STRING (file),
__ptrvalue (&kst));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat_conv (vers, &kst, st);
# endif /* __ASSUME_STAT64_SYSCALL */
out:
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
{
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
result = -1;
}
return result;
#endif
}
int
__fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag)
{
if (__builtin_expect (vers != _STAT_VER_LINUX, 0))
{
__set_errno (EINVAL);
return -1;
}
int result;
INTERNAL_SYSCALL_DECL (err);
#ifdef __NR_fstatat64
# ifndef __ASSUME_ATFCTS
if (__have_atfcts >= 0)
# endif
{
result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag);
# ifndef __ASSUME_ATFCTS
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)
&& INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS)
__have_atfcts = -1;
else
# endif
if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return 0;
else
{
__set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
return -1;
}
}
#endif
#ifndef __ASSUME_ATFCTS
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
# if __ASSUME_STAT64_SYSCALL > 0
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
CHECK_1 (st));
else
result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
CHECK_1 (st));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
{
# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
if (st->__st_ino != (__ino_t) st->st_ino)
st->st_ino = st->__st_ino;
# endif
return result;
}
# else
struct kernel_stat kst;
# ifdef __NR_stat64
if (! __have_no_stat64)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
CHECK_1 (st));
else
result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
CHECK_1 (st));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
{
# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
if (st->__st_ino != (__ino_t) st->st_ino)
st->st_ino = st->__st_ino;
# endif
return result;
}
if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
goto fail;
__have_no_stat64 = 1;
}
# endif
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file),
__ptrvalue (&kst));
else
result = INTERNAL_SYSCALL (stat, err, 2, CHECK_STRING (file),
__ptrvalue (&kst));
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat64_conv (vers, &kst, st);
fail:
# endif
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
return -1;
#endif
}
/* Get information about the file NAME in BUF. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
INTERNAL_SYSCALL_DECL (err);
int result, errno_out;
/* ??? The __fxstatat entry point is new enough that it must be using
vers == _STAT_VER_KERNEL64. For the benefit of dl-fxstatat64.c, we
cannot actually check this, lest the compiler not optimize the rest
of the function away. */
#ifdef __NR_fstatat64
if (__have_atfcts >= 0)
{
result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return result;
errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
#ifndef __ASSUME_ATFCTS
if (errno_out == ENOSYS)
__have_atfcts = -1;
else
#endif
{
__set_errno (errno_out);
return -1;
}
}
#endif /* __NR_fstatat64 */
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
if (__builtin_expect (filelen == 0, 0))
{
__set_errno (ENOENT);
return -1;
}
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
#ifdef __NR_stat64
if (!__libc_missing_axp_stat64)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat64, err, 2, file, st);
else
result = INTERNAL_SYSCALL (stat64, err, 2, file, st);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return result;
errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
# if __ASSUME_STAT64_SYSCALL == 0
if (errno_out == ENOSYS)
__libc_missing_axp_stat64 = 1;
else
# endif
goto fail;
}
#endif /* __NR_stat64 */
struct kernel_stat kst;
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lstat, err, 2, file, &kst);
else
result = INTERNAL_SYSCALL (stat, err, 2, file, &kst);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return __xstat_conv (vers, &kst, st);
errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
fail:
__atfct_seterrno (errno_out, fd, buf);
return -1;
}
int
fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
{
if (flag & ~AT_SYMLINK_NOFOLLOW)
{
__set_errno (EINVAL);
return -1;
}
char *buf = NULL;
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/
- the file descriptor number
- the file name provided.
The final NUL is included in the sizeof. A bit of overhead
due to the format elements compensates for possible negative
numbers. */
size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen;
buf = alloca (buflen);
__snprintf (buf, buflen, procfd, fd, file);
file = buf;
}
int result;
INTERNAL_SYSCALL_DECL (err);
#if __ASSUME_LCHOWN_SYSCALL
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown, err, 3, file, owner, group);
else
result = INTERNAL_SYSCALL (chown, err, 3, file, owner, group);
#else
char link[PATH_MAX + 2];
char path[2 * PATH_MAX + 4];
int loopct;
size_t filelen;
static int libc_old_chown = 0 /* -1=old linux, 1=new linux, 0=unknown */;
if (libc_old_chown == 1)
{
if (flag & AT_SYMLINK_NOFOLLOW)
result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
group);
else
result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
group);
goto out;
}
# ifdef __NR_lchown
if (flag & AT_SYMLINK_NOFOLLOW)
{
result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
group);
goto out;
}
if (libc_old_chown == 0)
{
result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
group);
if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
return result;
if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
{
libc_old_chown = 1;
goto fail;
}
libc_old_chown = -1;
}
# else
if (flag & AT_SYMLINK_NOFOLLOW)
{
result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
group);
goto out;
}
# endif
result = __readlink (file, link, PATH_MAX + 1);
if (result == -1)
{
# ifdef __NR_lchown
result = INTERNAL_SYSCALL (lchown, err, 3, __ptrvalue (file), owner,
group);
# else
result = INTERNAL_SYSCALL (chown, err, 3, __ptrvalue (file), owner,
group);
# endif
goto out;
}
filelen = strlen (file) + 1;
if (filelen > sizeof (path))
{
errno = ENAMETOOLONG;
return -1;
}
memcpy (path, file, filelen);
/* 'The system has an arbitrary limit...' In practise, we'll hit
ENAMETOOLONG before this, usually. */
for (loopct = 0; loopct < 128; ++loopct)
{
size_t linklen;
if (result >= PATH_MAX + 1)
{
errno = ENAMETOOLONG;
return -1;
}
link[result] = 0; /* Null-terminate string, just-in-case. */
linklen = strlen (link) + 1;
if (link[0] == '/')
memcpy (path, link, linklen);
else
{
filelen = strlen (path);
while (filelen > 1 && path[filelen - 1] == '/')
--filelen;
while (filelen > 0 && path[filelen - 1] != '/')
--filelen;
if (filelen + linklen > sizeof (path))
{
errno = ENAMETOOLONG;
return -1;
}
memcpy (path + filelen, link, linklen);
}
result = __readlink (path, link, PATH_MAX + 1);
if (result == -1)
{
# ifdef __NR_lchown
result = INTERNAL_SYSCALL (lchown, err, 3, path, owner, group);
# else
result = INTERNAL_SYSCALL (chown, err, 3, path, owner, group);
# endif
goto out;
}
}
__set_errno (ELOOP);
return -1;
out:
#endif
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
{
#if !__ASSUME_LCHOWN_SYSCALL
fail:
#endif
__atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
result = -1;
}
return result;
}
