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 "brkstring.h"
  10 #include "h/utils.h"
  11
  12 char **
  13 getarguments (char *invo_name, int argc, char **argv, int check_context)
  14 {
  15     char *cp = NULL, **ap = NULL, **bp = NULL, **arguments = NULL;
  16     int n = 0;
  17
  18     /*
  19      * Check if profile/context specifies any arguments
  20      */
  21     if (check_context && (cp = context_find (invo_name))) {
  22         cp = mh_xstrdup(cp);            /* make copy    */
  23         ap = brkstring (cp, " ", "\n"); /* split string */
  24
  25         /* Count number of arguments split */
  26         bp = ap;
  27         while (*bp++)
  28             n++;
  29     }
  30
  31     arguments = mh_xmalloc ((argc + n) * sizeof(*arguments));
  32     bp = arguments;
  33
  34     /* Copy any arguments from profile/context */
  35     if (ap != NULL && n > 0) {
  36         while (*ap)
  37             *bp++ = *ap++;
  38      }
  39
  40     /* Copy arguments from command line */
  41     argv++;
  42     while (*argv)
  43         *bp++ = *argv++;
  44
  45     /* Now NULL terminate the array */
  46     *bp = NULL;
  47
  48     return arguments;
  49 }