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sortix--sortix/libmaxsi/fgets.cpp
2012-07-31 14:35:54 +02:00

47 lines
1.3 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
This file is part of LibMaxsi.
LibMaxsi 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.
LibMaxsi 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 LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
fgets.cpp
Reads a string from a FILE.
*******************************************************************************/
#include <stdio.h>
#include <errno.h>
extern "C" char* fgets(char* dest, int size, FILE* fp)
{
if ( size <= 0 ) { errno = EINVAL; return NULL; }
int i;
for ( i = 0; i < size-1; i++ )
{
int c = getc(fp);
if ( c == EOF )
{
if ( ferror(fp) ) { return NULL; }
else { i++; break; } /* EOF */
}
dest[i] = c;
if ( c == '\n' ) { i++; break; }
}
dest[i] = '\0';
return dest;
}