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/* the Music Player Daemon (MPD)
* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "inputStream.h"
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
int initInputStreamFromFile(InputStream * inStream, char * filename) {
inStream->fp = fopen(filename,"r");
if(!inStream->fp) {
inStream->error = errno;
return -1;
}
inStream->offset = 0;
fseek(inStream->fp,0,SEEK_END);
inStream->size = ftell(inStream->fp);
fseek(inStream->fp,0,SEEK_SET);
return 0;
}
int seekInputStream(InputStream * inStream, long offset) {
if(offset<0) {
inStream->error = EINVAL;
return -1;
}
if(fseek(inStream->fp,offset,SEEK_SET)==0) {
inStream->offset = offset;
}
else {
inStream->error = errno;
return -1;
}
return 0;
}
size_t fillBufferFromInputStream(InputStream * inStream, char * buffer,
size_t buflen)
{
size_t readSize;
readSize = fread(buffer,1,buflen,inStream->fp);
if(readSize>0) inStream->offset+=readSize;
return readSize;
}
int finishInputStream(InputStream * inStream) {
if(fclose(inStream->fp)<0) {
inStream->error = errno;
}
else return -1;
return 0;
}
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