48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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vsscanf.cpp
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Input format conversion.
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*******************************************************************************/
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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extern "C" int vsscanf(const char* str, const char* format, va_list ap)
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{
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const char* filename = "/ugly-vsscanf-hack";
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FILE* fp = fopen(filename, "w+");
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if ( !fp )
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return -1;
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int ret = -1;
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size_t len = strlen(str);
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if ( fwrite(str, sizeof(char), len, fp) == len )
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if ( fseek(fp, 0, SEEK_SET) == 0 )
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ret = vfscanf(fp, format, ap);
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int savederrno = errno;
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fclose(fp);
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unlink(filename);
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errno = savederrno;
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return ret;
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}
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