/*
 * Sample program for mount and umount system call  - No.21, No.22
 *
 * mount, umount - mount and umount filesystems
 *
 * Synopsis
 *     #include <sys/mount.h>
 *
 *     int mount(const char *source, const char *target,
 *         const char *filesystemtype, unsigned long mountflags,
 *         const void *data);
 *	int umount(const char *target);
 *
 * Macros - <sys/mount.h>
 *       #define MS_RDONLY        1 * mount read-only *
 *       #define MS_NOSUID        2 * ignore suid and sgid bits *
 *       #define MS_NODEV         4 * no access to device special files *
 *       #define MS_NOEXEC        8 * no program execution *
 *       #define MS_SYNCHRONOUS  16 * writes are synced at once *
 *       #define MS_REMOUNT      32 * alter flags of a mounted fs *
 *       #define MS_MANDLOCK     64 * allow mandatory locks *
 *       #define MS_NOATIME    1024 * do not update access times *
 *       #define MS_NODIRATIME 2048 * do not update dir access times *
 *       #define MS_BIND       4096 * bind subtree elsewhere *
 *       #define MS_MOVE       8192 * atomically move subtree *
 *
 * Supported filesystems
 *     adfs, affs, autofs, coda, coherent, cramfs, devpts, efs, ext,
 *     ext2, ext3, hfs, hpfs, iso9660, jfs, minix, msdos, ncpfs, nfs,
 *     ntfs, proc, qnx4, reiserfs, romfs, smbfs, sysv, tmpfs, udf,
 *     ufs, umsdos, vfat, xenix, xfs, xiafs
 */

#include <stdio.h>
#include <sys/mount.h>

main()
{
	mount("/dev/cdrom", "/mnt/cdrom", "iso9660", MS_RDONLY, NULL);
	system("ls /mnt/cdrom");
	umount("/mnt/cdrom");

	exit(0);
}