4.3BSD - /usr/src/new/mh/sbr/showfile.c

   1: /* showfile.c - invoke lproc */
   2: 
   3: #include "../h/mh.h"
   4: #include <stdio.h>
   5: 
   6: 
   7: showfile (arg, file)
   8: register char **arg,
   9:                *file;
  10: {
  11:     int     isdraft,
  12:             pid;
  13:     register int    vecp;
  14:     char   *vec[MAXARGS];
  15: 
  16:     m_update ();
  17:     (void) fflush (stdout);
  18: 
  19:     if (strcmp (r1bindex (lproc, '/'), "mhl") == 0)
  20:     lproc = mhlproc;
  21: 
  22:     switch (pid = vfork ()) {
  23:     case NOTOK:
  24:         advise ("fork", "unable to");
  25:         return 1;
  26: 
  27:     case OK:
  28:         vecp = 0;
  29:         vec[vecp++] = r1bindex (lproc, '/');
  30:         isdraft = 1;
  31:         if (arg)
  32:         while (*arg) {
  33:             if (**arg != '-')
  34:             isdraft = 0;
  35:             vec[vecp++] = *arg++;
  36:         }
  37:         if (isdraft) {
  38:         if (strcmp (vec[0], "show") == 0)
  39:             vec[vecp++] = "-file";
  40:         vec[vecp++] = file;
  41:         }
  42:         vec[vecp] = NULL;
  43: 
  44:         execvp (lproc, vec);
  45:         fprintf (stderr, "unable to exec ");
  46:         perror (lproc);
  47:         _exit (-1);
  48: 
  49:     default:
  50:         return (pidwait (pid, NOTOK) & 0377 ? 1 : 0);
  51:     }
  52: }

Defined functions