35 lines
817 B
C
35 lines
817 B
C
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/* This file contains a fixed implementation of fgetwc since glibc's one is a little segfaulty when used on fmemopen'ed files. */
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#include <stdlib.h>
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#include <wchar.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "fgetwc_fix.h"
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/* code blatantly ripped from newlib. If you are from newlib: newlib rocks, keep going! */
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wint_t _fgetwc_fixed(FILE *fp) {
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wchar_t wc;
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size_t res;
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size_t nconv = 0;
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char buf[MB_CUR_MAX];
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mbstate_t mbstate;
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memset(&mbstate, 0, sizeof(mbstate));
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while((buf[nconv++] = fgetc(fp)) != EOF){
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res = mbrtowc(&wc, buf, nconv, &mbstate);
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if (res == (size_t)-1) /* invalid sequence */
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break;
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else if (res == (size_t)-2) /* incomplete sequence */
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continue;
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else if (res == 0)
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return L'\0';
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else
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return wc;
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}
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errno = EILSEQ;
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return WEOF;
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}
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