cloudstack/vnet/src/libxutil/iostream.c

56 lines
1.6 KiB
C

/*
* Copyright (C) 2001 - 2004 Mike Wray <mike.wray@hp.com>
*
* This 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 2.1 of the License, or
* (at your option) any later version.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "iostream.h"
#include "sys_string.h"
/** Print on a stream, like vfprintf().
*
* @param stream to print to
* @param format for the print (as fprintf())
* @param args arguments to print
* @return result code from the print
*/
int IOStream_vprint(IOStream *stream, const char *format, va_list args){
char buffer[1024];
int k = sizeof(buffer), n;
n = vsnprintf(buffer, k, (char*)format, args);
if(n < 0 || n > k ){
n = k;
}
n = IOStream_write(stream, buffer, n);
return n;
}
/** Print on a stream, like fprintf().
*
* @param stream to print to
* @param format for the print (as fprintf())
* @return result code from the print
*/
int IOStream_print(IOStream *stream, const char *format, ...){
va_list args;
int result = -1;
va_start(args, format);
result = IOStream_vprint(stream, format, args);
va_end(args);
return result;
}