workbench/libs/rexxsyslib/fillrexxmsg.c

   1 /*
   2     Copyright © 1995-2016, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include "rexxsyslib_intern.h"
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <clib/rexxsyslib_protos.h>
  16
  17         AROS_LH3(BOOL, FillRexxMsg,
  18
  19 /*  SYNOPSIS */
  20         AROS_LHA(struct RexxMsg *, msgptr, A0),
  21         AROS_LHA(ULONG           , count , D0),
  22         AROS_LHA(ULONG           , mask  , D1),
  23
  24 /*  LOCATION */
  25         struct RxsLib *, RexxSysBase, 27, RexxSys)
  26
  27 /*  FUNCTION
  28         This function will convert the value(s) provided in rm_Args of the
  29         RexxMsg. The input can be either a string or a number.
  30
  31     INPUTS
  32         msgptr - RexxMsg to create the RexxArgs for.
  33         count  - The number of ARGs in the rm_Args structure field that is
  34                  filled with a value and has to be converted.
  35         mask   - Bits 0 to 'count' from this mask indicate whether the
  36                  corresponding value in rm_Args is a string or a number. When
  37                  the bit is cleared the value is a pointer to a string. When
  38                  it is set it is treated as a signed integer.
  39
  40     RESULT
  41         Returns TRUE if succeeded, FALSE otherwise. When FALSE is returned all
  42         memory already allocated will be freed before returning.
  43
  44     NOTES
  45
  46     EXAMPLE
  47         This code will convert a string and a number to RexxArgs:
  48
  49         struct RexxMsg *rm;
  50
  51         ...
  52
  53         rm->rm_Args[0] = "Test";
  54         rm->rm_Args[1] = (UBYTE *)5;
  55
  56         if (!FillRexxMsg(rm, 2, 1<<1))
  57         ...
  58
  59     BUGS
  60
  61     SEE ALSO
  62         ClearRexxMsg(), CreateRexxMsg(), CreateArgstring()
  63
  64     INTERNALS
  65
  66
  67 *****************************************************************************/
  68 {
  69     AROS_LIBFUNC_INIT
  70     STRPTR args[16];
  71     char number[20];
  72     ULONG i, j;
  73
  74     for (i = 0; i < count; i++)
  75     {
  76         /* Is argument i an integer ? */
  77         if (mask & (1<<i))
  78         {
  79             /* Convert int to string */
  80             sprintf(number, "%ld", (long)msgptr->rm_Args[i]);
  81             args[i] = (STRPTR)CreateArgstring(number, strlen(number));
  82
  83             /* Clean up if error in CreateArgstring */
  84             if (args[i] == NULL)
  85             {
  86                 for (j = 0; j < i; j++)
  87                     if (args[j] != NULL) DeleteArgstring((UBYTE *)args[j]);
  88                 ReturnBool("FillRexxMsg", FALSE);
  89             }
  90         }
  91         else
  92         {
  93             /* CreateArgstring with null terminated string if pointer is not null */
  94             if (msgptr->rm_Args[i] == 0) args[i] = NULL;
  95             else
  96             {
  97                 args[i] = (STRPTR)CreateArgstring(RXARG(msgptr,i), strlen(RXARG(msgptr,i)));
  98
  99                 /* Clean up if error in CreateArgstring */
 100                 if (args[i] == NULL)
 101                 {
 102                     for (j = 0; j < i; j++)
 103                         if (args[j] != NULL) DeleteArgstring((UBYTE *)args[j]);
 104                     ReturnBool("FillRexxMsg", FALSE);
 105                 }
 106             }
 107         }
 108     }
 109
 110     CopyMem(args, msgptr->rm_Args, count * sizeof(STRPTR));
 111     ReturnBool("FillRexxMsg", TRUE);
 112     AROS_LIBFUNC_EXIT
 113 } /* FillRexxMsg */