BSD 4 development

[unix-history] / usr / src / cmd / vpr / rotprt.c

#include <stdio.h>
#include <vfont.h>
#include <sys/types.h>
#include <sys/stat.h>

char    *chp;
char    *sbrk();

main(argc,argv)
char **argv;
{
       struct header h;
       struct dispatch d[256];
       struct stat stb;
       off_t tell();
       int i,size;

       argc--, argv++;
       if (argc > 0) {
               close(0);
               if (open(argv[0], 0) < 0)
                       perror(argv[0]), exit(1);
       }
       if (read(0, &h, sizeof(h)) != sizeof(h))
               fprintf(stderr, "header read error\n"), exit(1);
       if (h.magic != 0436)
               fprintf(stderr, "bad magic number\n"), exit(1);
       if (read(0, d, sizeof(d)) != sizeof(d))
               fprintf(stderr, "dispatch read error\n"), exit(1);
       fstat(0, &stb);
       size = stb.st_size - tell(0);
       fprintf(stderr, "%d bytes of characters\n", size);
       chp = sbrk(size);
       read(0, chp, size);
       /* write(1, &h, sizeof (h)); */
       for (i = 0; i < 256; i++)
               rprt(i, &d[i], chp+d[i].addr);
}

rprt(i, dp, cp)
       int i;
       struct dispatch *dp;
       char *cp;
{
       int bpl, j;

       if (dp->nbytes == 0)
               return;
       if (i >= 0200)
               printf("M-"), i -= 0200;
       if (i < 040)
               printf("^%c", i|'@');
       else if (i == 0177)
               printf("^?");
       else
               printf("%c", i);
       printf("%d bytes, l %d r %d u %d d %d:\n",
           dp->nbytes, dp->left, dp->right, dp->up, dp->down);
       bpl = (dp->up+dp->down+7)/8;
       for (i = 0; i < dp->right+dp->left; i++) {
               for (j = 0; j < bpl; j++)
                       pbits(cp[j]);
               cp += bpl;
               printf("\n");
       }
       printf("========\n");
}

pbits(i)
       register int i;
{
       register int j;

       for (j = 8; j > 0; j--) {
               printf((i & 0x80) ? " *" : "  ");
               i <<= 1;
       }
}