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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-05-18 17:41:25 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-07-07 15:02:57 -0300 |
| commit | 325081b9eb2035f8f025255206889208f330b590 (patch) | |
| tree | 43a32de8fdd6777e290d7310795b41ea86df12b6 /string/string.h | |
| parent | bfe05aa289054744b68f136b701705cfd242c4de (diff) | |
| download | glibc-325081b9eb2035f8f025255206889208f330b590.tar.gz glibc-325081b9eb2035f8f025255206889208f330b590.tar.xz glibc-325081b9eb2035f8f025255206889208f330b590.zip | |
string: Add strerrorname_np and strerrordesc_np
The strerrorname_np returns error number name (e.g. "EINVAL" for EINVAL) while strerrordesc_np returns string describing error number (e.g "Invalid argument" for EINVAL). Different than strerror, strerrordesc_np does not attempt to translate the return description, both functions return NULL for an invalid error number. They should be used instead of sys_errlist and sys_nerr, both are thread and async-signal safe. These functions are GNU extensions. Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu, and s390x-linux-gnu. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'string/string.h')
| -rw-r--r-- | string/string.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/string/string.h b/string/string.h index 0119d7f45d..b0be00c0f7 100644 --- a/string/string.h +++ b/string/string.h @@ -428,6 +428,13 @@ extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen) extern char *strerror_r (int __errnum, char *__buf, size_t __buflen) __THROW __nonnull ((2)) __wur __attr_access ((__write_only__, 2, 3)); # endif + +# ifdef __USE_GNU +/* Return a string describing the meaning of tthe error in ERR. */ +extern const char *strerrordesc_np (int __err) __THROW; +/* Return a string with the error name in ERR. */ +extern const char *strerrorname_np (int __err) __THROW; +# endif #endif #ifdef __USE_XOPEN2K8 |