rosapps/cmd/call.c

   1 /*
   2  *  CALL.C - call internal batch command.
   3  *
   4  *
   5  *  History:
   6  *
   7  *    16 Jul 1998 (Hans B Pufal)
   8  *        started.
   9  *
  10  *    16 Jul 1998 (John P Price)
  11  *        Seperated commands into individual files.
  12  *
  13  *    27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
  14  *        added config.h include
  15  *
  16  *    04-Aug-1998 (Hans B Pufal)
  17  *        added lines to initialize for pointers (HBP004)  This fixed the
  18  *        lock-up that happened sometimes when calling a batch file from
  19  *        another batch file.
  20  *
  21  *    07-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
  22  *        Added help text ("call /?") and cleaned up.
  23  *
  24  *    20-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
  25  *        Unicode and redirection safe!
  26  */
  27
  28 #include "config.h"
  29
  30 #include <windows.h>
  31 #include <tchar.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 #include "cmd.h"
  37 #include "batch.h"
  38
  39
  40 /*
  41  * Perform CALL command.
  42  *
  43  * Allocate a new batch context and add it to the current chain.
  44  * Call parsecommandline passing in our param string
  45  * If No batch file was opened then remove our newly allocted
  46  * context block.
  47  */
  48
  49 INT cmd_call (LPTSTR cmd, LPTSTR param)
  50 {
  51         LPBATCH_CONTEXT n = NULL;
  52
  53 #ifdef _DEBUG
  54         DebugPrintf ("cmd_call: (\'%s\',\'%s\')\n", cmd, param);
  55 #endif
  56         if (!_tcsncmp (param, _T("/?"), 2))
  57         {
  58                 ConOutPuts (_T("Calls one batch program from another.\n\n"
  59                                            "CALL [drive:][path]filename [batch-parameter]\n\n"
  60                                            "  batch-parameter  Specifies any command-line information required by the\n"
  61                                            "                   batch program."));
  62                 return 0;
  63         }
  64
  65         n = (LPBATCH_CONTEXT)malloc (sizeof (BATCH_CONTEXT));
  66
  67         if (n == NULL)
  68         {
  69                 error_out_of_memory ();
  70                 return 1;
  71         }
  72
  73         n->prev = bc;
  74         bc = n;
  75
  76         bc->hBatchFile = INVALID_HANDLE_VALUE;
  77         bc->params = NULL;
  78         bc->shiftlevel = 0;
  79         bc->forvar = 0;        /* HBP004 */
  80         bc->forproto = NULL;   /* HBP004 */
  81
  82         ParseCommandLine (param);
  83
  84         /* Wasn't a batch file so remove conext */
  85         if (bc->hBatchFile == INVALID_HANDLE_VALUE)
  86         {
  87                 bc = bc->prev;
  88                 free (n);
  89         }
  90
  91         return 0;
  92 }