rom/dos/setprompt.c

   1 /*
   2     Copyright © 1995-2008, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Sets the prompt for the current CLI.
   6     Lang: english
   7 */
   8 #include <proto/exec.h>
   9 #include <proto/dos.h>
  10 #include <dos/dos.h>
  11 #include <dos/dosextens.h>
  12 #include "dos_intern.h"
  13
  14 /*****************************************************************************
  15
  16     NAME */
  17 #include <proto/dos.h>
  18
  19         AROS_LH1(BOOL, SetPrompt,
  20
  21 /*  SYNOPSIS */
  22         AROS_LHA(CONST_STRPTR, name, D1),
  23
  24 /*  LOCATION */
  25         struct DosLibrary *, DOSBase, 97, Dos)
  26
  27 /*  FUNCTION
  28         Sets the prompt in the current CLI structure. If the name doesn't
  29         fit the old name is kept and a failure is returned. If the current
  30         process doesn't have a CLI structure this function does nothing.
  31
  32     INPUTS
  33         name - The prompt to be set.
  34
  35     RESULT
  36         !=0 on success, 0 on failure.
  37
  38     NOTES
  39
  40     EXAMPLE
  41
  42     BUGS
  43         Never copies more than 255 bytes.
  44
  45     SEE ALSO
  46         GetPrompt()
  47
  48     INTERNALS
  49
  50 *****************************************************************************/
  51 {
  52     AROS_LIBFUNC_INIT
  53     struct CommandLineInterface *cli = NULL;
  54     CONST_STRPTR s;
  55     STRPTR bs;
  56     ULONG namelen;
  57
  58     if ((cli = Cli()) == NULL)
  59         return DOSFALSE;
  60
  61     s = name;
  62     while(*s++)
  63         ;
  64     namelen = s - name - 1;
  65
  66     if (namelen > 255)
  67         return DOSFALSE;
  68
  69     bs = AROS_BSTR_ADDR(cli->cli_Prompt);
  70
  71     AROS_BSTR_setstrlen(cli->cli_Prompt, namelen);
  72     CopyMem((APTR)name, bs, namelen);
  73
  74     return DOSTRUE;
  75     AROS_LIBFUNC_EXIT
  76 } /* SetPrompt */