user/icode.c

   1 #include <inc/lib.h>
   2
   3 void
   4 umain(void)
   5 {
   6         int fd, n, r;
   7         char buf[512+1];
   8
   9         cprintf("icode startup\n");
  10
  11         cprintf("icode: open /motd\n");
  12         if ((fd = open("/motd", O_RDONLY)) < 0)
  13                 panic("icode: open /motd: %e", fd);
  14
  15         cprintf("icode: read /motd\n");
  16         while ((n = read(fd, buf, sizeof buf-1)) > 0)
  17                 sys_cputs(buf, n);
  18
  19         cprintf("icode: close /motd\n");
  20         close(fd);
  21
  22         cprintf("icode: spawn /init\n");
  23         if ((r = spawnl("/init", "init", "initarg1", "initarg2", (char*)0)) < 0)
  24                 panic("icode: spawn /init: %e", r);
  25
  26         cprintf("icode: exiting\n");
  27 }