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[unix-history] / usr / src / sys / vax / mdec / installboot.c

/*      installboot.c   4.1     83/02/16        */

#include "../h/param.h"
#include "../h/fs.h"

char bootimage[BBSIZE];

main(argc, argv)
       int argc;
       char *argv[];
{
       int fd;

       if (argc != 4) {
               printf("Usage: installboot bootblock bootprog device\n");
               exit(1);
       }
       fd = open(argv[1], 0);
       if (fd < 0) {
               perror(argv[1]);
               exit(1);
       }
       read(fd, bootimage, DEV_BSIZE);
       close(fd);
       fd = open(argv[2], 0);
       if (fd < 0) {
               perror(argv[2]);
               exit(1);
       }
       read(fd, &bootimage[DEV_BSIZE], BBSIZE - DEV_BSIZE);
       close(fd);
       fd = open(argv[3], 1);
       if (fd < 0) {
               perror(argv[3]);
               exit(1);
       }
       write(fd, bootimage, BBSIZE);
       close(fd);
}