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Deprecate readdir_r, readdir64_r [BZ #19056]

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Florian Weimer 2016-02-20 12:56:55 +01:00
parent 8d9c92017d
commit 7584a3f96d
5 changed files with 34 additions and 9 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2016-02-20 Florian Weimer <fweimer@redhat.com>
[BZ #19056]
* dirent/dirent.h (readdir_r, readdir64_r): Mark as deprecated.
* manual/filesys.texi (Reading/Closing Directory): Mention
deprecaion.
* posix/tst-dir.c (main): Disable deprecation warning in test.
2016-02-19 H.J. Lu <hongjiu.lu@intel.com>
[BZ #19679]

3
NEWS
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@ -11,6 +11,9 @@ Version 2.24
time. It has been replaced by pap_AW & pap_CW, both of which have long
been included in previous releases.
* The readdir_r and readdir64_r functions have been deprecated. It is
recommended to use readdir and readdir64 instead.
Security related changes:
[Add security related changes here]

7
dirent/dirent.h
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@ -183,14 +183,15 @@ extern struct dirent64 *readdir64 (DIR *__dirp) __nonnull ((1));
extern int readdir_r (DIR *__restrict __dirp,
struct dirent *__restrict __entry,
struct dirent **__restrict __result)
__nonnull ((1, 2, 3));
__nonnull ((1, 2, 3)) __attribute_deprecated__;
# else
# ifdef __REDIRECT
extern int __REDIRECT (readdir_r,
(DIR *__restrict __dirp,
struct dirent *__restrict __entry,
struct dirent **__restrict __result),
readdir64_r) __nonnull ((1, 2, 3));
readdir64_r)
__nonnull ((1, 2, 3)) __attribute_deprecated__;
# else
# define readdir_r readdir64_r
# endif
@ -200,7 +201,7 @@ extern int __REDIRECT (readdir_r,
extern int readdir64_r (DIR *__restrict __dirp,
struct dirent64 *__restrict __entry,
struct dirent64 **__restrict __result)
__nonnull ((1, 2, 3));
__nonnull ((1, 2, 3)) __attribute_deprecated__;
# endif
#endif /* POSIX or misc */

13
manual/filesys.texi
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@ -525,8 +525,9 @@ locking. Like @code{readdir} it returns the next entry from the
directory. To prevent conflicts between simultaneously running
threads the result is stored inside the @var{entry} object.
@strong{Portability Note:} It is recommended to use @code{readdir}
instead of @code{readdir_r} for the following reasons:
@strong{Portability Note:} @code{readdir_r} is deprecated. It is
recommended to use @code{readdir} instead of @code{readdir_r} for the
following reasons:
@itemize @bullet
@item
@ -604,10 +605,10 @@ In all other aspects this function is equivalent to @code{readdir}.
@comment LFS
@deftypefun int readdir64_r (DIR *@var{dirstream}, struct dirent64 *@var{entry}, struct dirent64 **@var{result})
@safety{@prelim{}@mtsafe{}@asunsafe{@asulock{}}@acunsafe{@aculock{}}}
The @code{readdir64_r} function is equivalent to the @code{readdir_r}
function except that it takes parameters of base type @code{struct
dirent64} instead of @code{struct dirent} in the second and third
position. The same precautions mentioned in the documentation of
The deprecated @code{readdir64_r} function is equivalent to the
@code{readdir_r} function except that it takes parameters of base type
@code{struct dirent64} instead of @code{struct dirent} in the second and
third position. The same precautions mentioned in the documentation of
@code{readdir_r} also apply here.
@end deftypefun

12
posix/tst-dir.c
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@ -319,6 +319,10 @@ main (int argc, char *argv[])
exit (1);
}
/* The test below covers the deprecated readdir64_r function. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
/* Try to find the new directory. */
rewinddir (dir1);
while (readdir64_r (dir1, &direntbuf.d, &d) == 0 && d != NULL)
@ -351,6 +355,8 @@ main (int argc, char *argv[])
}
}
DIAG_POP_NEEDS_COMMENT;
if (d == NULL)
{
printf ("haven't found new directory \"%s\"\n", buf);
@ -439,6 +445,10 @@ main (int argc, char *argv[])
result = 1;
}
/* The test below covers the deprecated readdir64_r function. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
/* We now should have a directory and a file in the new directory. */
rewinddir (dir2);
while (readdir64_r (dir2, &direntbuf.d, &d) == 0 && d != NULL)
@ -492,6 +502,8 @@ main (int argc, char *argv[])
}
}
DIAG_POP_NEEDS_COMMENT;
if (stat64 ("does-not-exist", &st1) >= 0)
{
puts ("stat for unexisting file did not fail");