STIOC_LOCATE

Edit online

This IOCTL command causes the tape to be positioned at the specified block ID. The block ID used for the command must be obtained by using the STIOC_READ_POSITION command.

An example of the STIOC_LOCATE command is

#include <sys/IBM_tape.h>
unsigned int current_blockid;

/* read current tape position */
if (ioctl(tapefd,STIOC_READ_POSITION,&current_blockid)) {
   printf("ioctl failure. errno=%d\n",errno);
   exit(1);
}

/* restore current tape position */
if (ioctl(tapefd,STIOC_LOCATE,current_blockid)) {
   printf("ioctl failure.  errno=%d\n",errno);
   exit(1);
}