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

   1
   2 /*
   3  * getarguments.c -- Get the argument vector ready to go.
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/utils.h>
  12
  13 char **
  14 getarguments (char *invo_name, int argc, char **argv, int check_context)
  15 {
  16     char *cp = NULL, **ap = NULL, **bp = NULL, **arguments = NULL;
  17     int n = 0;
  18
  19     /*
  20      * Check if profile/context specifies any arguments
  21      */
  22     if (check_context && (cp = context_find (invo_name))) {
  23         cp = getcpy (cp);               /* make copy    */
  24         ap = brkstring (cp, " ", "\n"); /* split string */
  25
  26         /* Count number of arguments split */
  27         bp = ap;
  28         while (*bp++)
  29             n++;
  30     }
  31
  32     arguments = (char **) mh_xmalloc ((argc + n) * sizeof(*arguments));
  33     bp = arguments;
  34
  35     /* Copy any arguments from profile/context */
  36     if (ap != NULL && n > 0) {
  37         while (*ap)
  38             *bp++ = *ap++;
  39      }
  40
  41     /* Copy arguments from command line */
  42     argv++;
  43     while (*argv)
  44         *bp++ = *argv++;
  45
  46     /* Now NULL terminate the array */
  47     *bp = NULL;
  48
  49     return arguments;
  50 }