diff options
Diffstat (limited to 'posix/bits/unistd.h')
| -rw-r--r-- | posix/bits/unistd.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h index d461108e53..96f26d5482 100644 --- a/posix/bits/unistd.h +++ b/posix/bits/unistd.h @@ -100,6 +100,28 @@ __NTH (readlink (__const char *__restrict __path, char *__restrict __buf, } #endif +#ifdef __USE_ATFILE +extern ssize_t __readlinkat_chk (int __fd, __const char *__restrict __path, + char *__restrict __buf, size_t __len, + size_t __buflen) + __THROW __nonnull ((2, 3)) __wur; +extern ssize_t __REDIRECT_NTH (__readlinkat_alias, + (int __fd, __const char *__restrict __path, + char *__restrict __buf, size_t __len), + readlinkat) + __nonnull ((2, 3)) __wur; + +extern __always_inline __nonnull ((2, 3)) __wur ssize_t +__NTH (readlinkat (int __fd, __const char *__restrict __path, + char *__restrict __buf, size_t __len)) +{ + if (__bos (__buf) != (size_t) -1 + && (!__builtin_constant_p (__len) || __len > __bos (__buf))) + return __readlinkat_chk (__fd, __path, __buf, __len, __bos (__buf)); + return __readlinkat_alias (__fd, __path, __buf, __len); +} +#endif + extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen) __THROW __wur; extern char *__REDIRECT_NTH (__getcwd_alias, |