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| author | Martin Sebor <msebor@redhat.com> | 2020-05-04 11:21:50 -0600 |
|---|---|---|
| committer | Martin Sebor <msebor@redhat.com> | 2020-05-04 11:21:50 -0600 |
| commit | 06febd8c6705c816b2f32ee7aa1f4c0184b05248 (patch) | |
| tree | 71586b8485abc1c6b220cb6aba340e76286b3087 /stdlib/bits | |
| parent | 38c67888183db1b6ac21f2f9681b8a384987dfe8 (diff) | |
| download | glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.tar.gz glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.tar.xz glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.zip | |
improve out-of-bounds checking with GCC 10 attribute access [BZ #25219]
Adds the access attribute newly introduced in GCC 10 to the subset of function declarations that are already covered by _FORTIFY_SOURCE and that don't have corresponding GCC built-in equivalents. Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'stdlib/bits')
| -rw-r--r-- | stdlib/bits/stdlib.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/stdlib/bits/stdlib.h b/stdlib/bits/stdlib.h index bfdee75073..9134d3f36b 100644 --- a/stdlib/bits/stdlib.h +++ b/stdlib/bits/stdlib.h @@ -50,10 +50,11 @@ __NTH (realpath (const char *__restrict __name, char *__restrict __resolved)) extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen, - size_t __nreal) __THROW __nonnull ((2)); + size_t __nreal) __THROW __nonnull ((2)) + __attr_access ((__write_only__, 2, 3)); extern int __REDIRECT_NTH (__ptsname_r_alias, (int __fd, char *__buf, size_t __buflen), ptsname_r) - __nonnull ((2)); + __nonnull ((2)) __attr_access ((__write_only__, 2, 3)); extern int __REDIRECT_NTH (__ptsname_r_chk_warn, (int __fd, char *__buf, size_t __buflen, size_t __nreal), __ptsname_r_chk) @@ -97,11 +98,13 @@ __NTH (wctomb (char *__s, wchar_t __wchar)) extern size_t __mbstowcs_chk (wchar_t *__restrict __dst, const char *__restrict __src, - size_t __len, size_t __dstlen) __THROW; + size_t __len, size_t __dstlen) __THROW + __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2)); extern size_t __REDIRECT_NTH (__mbstowcs_alias, (wchar_t *__restrict __dst, const char *__restrict __src, - size_t __len), mbstowcs); + size_t __len), mbstowcs) + __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2)); extern size_t __REDIRECT_NTH (__mbstowcs_chk_warn, (wchar_t *__restrict __dst, const char *__restrict __src, @@ -129,11 +132,13 @@ __NTH (mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src, extern size_t __wcstombs_chk (char *__restrict __dst, const wchar_t *__restrict __src, - size_t __len, size_t __dstlen) __THROW; + size_t __len, size_t __dstlen) __THROW + __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2)); extern size_t __REDIRECT_NTH (__wcstombs_alias, (char *__restrict __dst, const wchar_t *__restrict __src, - size_t __len), wcstombs); + size_t __len), wcstombs) + __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2)); extern size_t __REDIRECT_NTH (__wcstombs_chk_warn, (char *__restrict __dst, const wchar_t *__restrict __src, |