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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-05-18 17:41:25 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-07-07 15:02:57 -0300
commit325081b9eb2035f8f025255206889208f330b590 (patch)
tree43a32de8fdd6777e290d7310795b41ea86df12b6 /include/stdio.h
parentbfe05aa289054744b68f136b701705cfd242c4de (diff)
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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 'include/stdio.h')
-rw-r--r--include/stdio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/stdio.h b/include/stdio.h
index 9e3bf6fe42..bc67d020d4 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -187,6 +187,7 @@ libc_hidden_proto (__libc_readline_unlocked);
 
 extern const char *const _sys_errlist_internal[] attribute_hidden;
 extern const char *__get_errlist (int) attribute_hidden;
+extern const char *__get_errname (int) attribute_hidden;
 
 libc_hidden_ldbl_proto (__asprintf)