52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
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* Copyright (c) 2012, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* locale/setlocale.c
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* Set program locale.
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*/
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#include <errno.h>
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#include <locale.h>
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#include <stdlib.h>
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#include <string.h>
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static char* current_locales[LC_NUM_CATEGORIES] = { NULL };
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char* setlocale(int category, const char* locale)
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{
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if ( category < 0 || LC_ALL < category )
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return errno = EINVAL, (char*) NULL;
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char* new_strings[LC_NUM_CATEGORIES];
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int from = category != LC_ALL ? category : 0;
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int to = category != LC_ALL ? category : LC_NUM_CATEGORIES - 1;
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if ( !locale )
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return current_locales[to] ? current_locales[to] : (char*) "C";
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for ( int i = from; i <= to; i++ )
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{
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if ( !(new_strings[i] = strdup(locale)) )
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{
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for ( int n = from; n < i; n++ )
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free(new_strings[n]);
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return (char*) NULL;
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}
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}
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for ( int i = from; i <= to; i++ )
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{
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free(current_locales[i]);
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current_locales[i] = new_strings[i];
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}
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return (char*) locale;
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}
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