BSD 4_1_snap development

[unix-history] / bill / hpdcopy.c

char    *from = "/dev/rhp0c";
char    *to = "/dev/rup0h";
char    *buf;
int     bsize = 3*22;
int     start = 0;
int     count = 814; /*480 for h file system on ampex*/

main(argc, argv)
       int argc;
       char **argv;
{

       argc--, argv++;
       if (argc > 0)
               start = atoi(*argv++), argc--;
       if (argc > 0)
               bsize = atoi(*argv++), argc--;
       if (argc > 0)
               count = atoi(*argv++), argc--;
       printf("from %s to %s, %d groups of %d blocks offset %d\n",
           from, to, count, bsize, start);
       close(0);
       if (open(from, 0) != 0)
               perror(from), exit(1);
       close(1);
       if (open(to, 1) != 1)
               perror(to), exit(1);
       start *= 512;
       bsize *= 512;
       buf = (char *)sbrk(bsize);
       while (count > 0) {
               if (lseek(0, start, 0) < 0)
                       perror("seek 0"), exit(1);
               if (lseek(1, start+(200000*512), 0) < 0)
                       perror("seek 1"), exit(1);
               if (count % 25 == 0)
                       printf("%d\n", count);
               if (read(0, buf, bsize) != bsize) {
                       printf("read block %d: ", start / 512);
                       perror("read 0");
               } else if (write(1, buf, bsize) != bsize) {
                       printf("write block %d: ", start / 512);
                       perror("write 1");
               }
               start += bsize;
               count--;
       }
       printf("DONE!\n");
}