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authorUlrich Drepper <drepper@redhat.com>2006-04-24 17:01:40 +0000
committerUlrich Drepper <drepper@redhat.com>2006-04-24 17:01:40 +0000
commita346370d582ed9be5e434f955c049e75abc37c28 (patch)
treed3bf31f79d210adfa9b58a906afe65237b879ae1 /posix
parent34a15e61e019c0aaa6b56c79b75ddb0ded49f590 (diff)
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* posix/bits/unistd.h (__readlinkat_chk): New prototype.
(__readlinkat_alias): New alias. (readlinkat): New inline function. * include/unistd.h (readlinkat): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/readlinkat.c (readlinkat): Add libc_hidden_def. * io/readlinkat.c (readlinkat): Likewise. * debug/readlinkat_chk.c: New file. * debug/Makefile (routines): Add readlinkat_chk. * debug/Versions (libc): Export __readlinkat_chk@@GLIBC_2.5. * debug/tst-chk1.c (do_test): Add readlinkat tests. * nis/nss_nisplus/nisplus-netgrp.c: Cleanups. code is possible. Move compatibility code in .text.compat section. over gaih array. There is only one function to call in the moment.
Diffstat (limited to 'posix')
-rw-r--r--posix/bits/unistd.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h
index d461108..96f26d5 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,