diplodocus.org Git - nmh/blob - sbr/getarguments.c

   1 /* getarguments.c -- Get the argument vector ready to go.
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <h/utils.h>
  10
  11 char **
  12 getarguments (char *invo_name, int argc, char **argv, int check_context)
  13 {
  14     char *cp = NULL, **ap = NULL, **bp = NULL, **arguments = NULL;
  15     int n = 0;
  16
  17     /*
  18      * Check if profile/context specifies any arguments
  19      */
  20     if (check_context && (cp = context_find (invo_name))) {
  21         cp = mh_xstrdup(cp);            /* make copy    */
  22         ap = brkstring (cp, " ", "\n"); /* split string */
  23
  24         /* Count number of arguments split */
  25         bp = ap;
  26         while (*bp++)
  27             n++;
  28     }
  29
  30     arguments = mh_xmalloc ((argc + n) * sizeof(*arguments));
  31     bp = arguments;
  32
  33     /* Copy any arguments from profile/context */
  34     if (ap != NULL && n > 0) {
  35         while (*ap)
  36             *bp++ = *ap++;
  37      }
  38
  39     /* Copy arguments from command line */
  40     argv++;
  41     while (*argv)
  42         *bp++ = *argv++;
  43
  44     /* Now NULL terminate the array */
  45     *bp = NULL;
  46
  47     return arguments;
  48 }