mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2012.
|
|
|
|
This file is part of the Sortix C Library.
|
|
|
|
The Sortix 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 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
stdio/vsscanf.cpp
|
|
Input format conversion.
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
extern "C" int vsscanf(const char* str, const char* format, va_list ap)
|
|
{
|
|
const char* filename = "/ugly-vsscanf-hack";
|
|
FILE* fp = fopen(filename, "w+");
|
|
if ( !fp )
|
|
return -1;
|
|
int ret = -1;
|
|
size_t len = strlen(str);
|
|
if ( fwrite(str, sizeof(char), len, fp) == len )
|
|
if ( fseek(fp, 0, SEEK_SET) == 0 )
|
|
ret = vfscanf(fp, format, ap);
|
|
int savederrno = errno;
|
|
fclose(fp);
|
|
unlink(filename);
|
|
errno = savederrno;
|
|
return ret;
|
|
}
|