BSD 4 development

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

#
/*
* tell vcat which fonts are loaded on the "typesetter"
*/
#define MAGIC_NUMBER 0436
#define RAILMAG_FILE "/usr/lib/vfont/railmag"

char *concat();
int rmfd;
char *rm[4];
char tbuf[256];

main(argc, argv)
       int argc;
       char *argv[];
       {
       register int fnum;
       char cbuf[4][50];

       readrm();
       if(argc <= 1)
               {
               printrm();
               exit(0);
               }
       while(--argc)
               {
               argv++;
               fnum = argv[0][0]-'0';
               if(fnum < 1 || fnum > 4)
                       error("Invalid font number");
               checkfont(argv[1]);
               if(argv[1][0] == '/')
                       rm[fnum-1] = argv[1];
                  else
                       rm[fnum-1] = concat(cbuf[fnum-1], "/usr/lib/vfont/", argv[1]);
               argv++; argc--;
               }
       writerm();
       }


error(str)
       char *str;
       {

       write(2, "Railmag: ", 9);
       write(2, str, strlen(str));
       write(2, "\n", 1);
       exit();
       }


checkfont(file)
       char *file;
       {
       register int fd;
       char cbuf[80];
       char cbuf2[80];
       short word;

       if((fd = open(concat(cbuf, file, ".10"), 0)) < 0)
               if((fd = open(concat(cbuf2, "/usr/lib/vfont/", cbuf), 0)) < 0)
                       error("cant open font");
       if(read(fd, &word, 2) != 2)
               error("cant read font");
       if(word != MAGIC_NUMBER)
               error("font has no magic number");
       close(fd);
       }

readrm()
       {
       register int i;
       register char *cp;
       char c;

       if((rmfd = open(RAILMAG_FILE, 0)) < 0)
               error("No railmag file");
       cp = tbuf;
       for(i = 0; i < 4; i++)
               {
               rm[i] = cp;
               while(read(rmfd, &c, 1) == 1 && c != '\n')
                       *cp++ = c;
               *cp++ = '\0';
               }
       }

printrm()
       {
       register int i;

       for(i = 0; i < 4; i++)
               printf("%s on %d\n", rm[i], i+1);
       }

writerm()
       {
       register int i;
       register char *cp;

       unlink(RAILMAG_FILE);
       if((rmfd = creat(RAILMAG_FILE, 0644)) < 0)
               error("cant recreate railmag file");
       for(i = 0; i < 4; i++)
               {
               cp = rm[i];
               while(*cp != '\0')
                       write(rmfd, cp++, 1);
               write(rmfd, "\n", 1);
               }
       }

char *
concat(outbuf,in1,in2)
  char *outbuf,*in1,*in2;
       {
       char *save;

       save = outbuf;
       while(*in1)
               *outbuf++ = *in1++;
       while(*in2)
               *outbuf++ = *in2++;
               return(save);
}