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/*
* mpc123 - Musepack Console audio player
* Copyright (C) 2005-2008 Daniele Sempione <scrows at oziosi.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "mpc123.h"
int shuffle(char **files, int n, char **argv) {
char *shuffletable;
unsigned int i, sl, shuffind;
srand(time(NULL));
shuffletable = (char *) calloc(n, sizeof(char));
for(i=0; i<n; i++) {
debug("element ");
shuffind = rand() % n;
while(shuffletable[shuffind]) {
shuffind++;
if(shuffind == 0xfffffffc) /* against integer overflow */
shuffind = 0;
shuffind %= n;
}
shuffletable[shuffind] = 1;
sl = strlen(argv[shuffind]);
files[i] = (char *) malloc(sl+1);
strncpy(files[i], argv[shuffind], sl);
debugf("\"%s\"", files[i]);
}
free(shuffletable);
return i;
}
/* vim:ft=c:tw=78:ts=2:et:cin:
*/
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