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/*
* dvdswitch plugin for VDR (C++)
*
* (C) 2010 Andreas Brachold <vdr07 AT deltab de>
*
* This dvdswitch plugin 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, version 2 of the License.
*
* See the files README and COPYING for details.
*
*/
#include <unistd.h>
#include <limits.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int volname(const char* device, char* volname, size_t volsize)
{
int fd;
int status;
char buffer[PATH_MAX];
if(!realpath(device, buffer)) {
return errno;
}
fd = open(device, O_RDONLY);
if (fd == -1) {
return errno;
}
status = lseek(fd, 32808, SEEK_SET);
if (status == -1) {
status = errno;
close(fd);
return status;
}
status = read(fd, volname, volsize > 32 ? 32 : volsize);
if (status == -1) {
status = errno;
close(fd);
return status;
}
close(fd);
return 0;
}
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