diff options
Diffstat (limited to 'REORG.TODO/string/strerror_l.c')
-rw-r--r-- | REORG.TODO/string/strerror_l.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/REORG.TODO/string/strerror_l.c b/REORG.TODO/string/strerror_l.c new file mode 100644 index 0000000000..03a3257dfd --- /dev/null +++ b/REORG.TODO/string/strerror_l.c @@ -0,0 +1,71 @@ +/* Copyright (C) 2007-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <libintl.h> +#include <locale.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> + + +static __thread char *last_value; + + +static const char * +translate (const char *str, locale_t loc) +{ + locale_t oldloc = __uselocale (loc); + const char *res = _(str); + __uselocale (oldloc); + return res; +} + + +/* Return a string describing the errno code in ERRNUM. */ +char * +strerror_l (int errnum, locale_t loc) +{ + + + if (__builtin_expect (errnum < 0 || errnum >= _sys_nerr_internal + || _sys_errlist_internal[errnum] == NULL, 0)) + { + free (last_value); + if (__asprintf (&last_value, "%s%d", + translate ("Unknown error ", loc), errnum) == -1) + last_value = NULL; + + return last_value; + } + + return (char *) translate (_sys_errlist_internal[errnum], loc); +} + + +#ifdef _LIBC +# ifdef _LIBC_REENTRANT +/* This is called when a thread is exiting to free the last_value string. */ +static void __attribute__ ((section ("__libc_thread_freeres_fn"))) +strerror_thread_freeres (void) +{ + free (last_value); +} +text_set_element (__libc_thread_subfreeres, strerror_thread_freeres); +text_set_element (__libc_subfreeres, strerror_thread_freeres); +# endif +#endif |