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Protect against NULL pointer "parms" function argument.

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Ron Sluiter
2004-03-16 15:13:32 +00:00
parent d5cab4fc8b
commit 0a8b238dfc
1 changed files with 8 additions and 3 deletions
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motorApp/ImsSrc/devMDrive.cc
+8 -3
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@@ -3,9 +3,9 @@ FILENAME... devMDrive.cc
USAGE... Motor record device level support for Intelligent Motion
Systems, Inc. MDrive series of controllers.
Version: $Revision: 1.2 $
Version: $Revision: 1.3 $
Modified By: $Author: sluiter $
Last Modified: $Date: 2004-03-15 20:10:25 $
Last Modified: $Date: 2004-03-16 15:13:32 $
*/
/*
@@ -38,6 +38,8 @@ Last Modified: $Date: 2004-03-15 20:10:25 $
* .01 03/21/03 rls copied from devIM483PL.c
* .02 05/15/03 rls R3.14 compatible.
* .03 03/15/04 rls bug fix for LOAD_POS command with encoder.
* .04 03/16/04 rls Protect against NULL "parms" argument in
* MDrive_build_trans().
*/
#include <string.h>
@@ -163,7 +165,10 @@ STATIC RTN_STATUS MDrive_build_trans(motor_cmnd command, double *parms, struct m
send = true; /* Default to send motor command. */
rtnval = OK;
buff[0] = '\0';
intval = NINT(parms[0]);
/* Protect against NULL pointer with WRTITE_MSG(GO/STOP_AXIS/GET_INFO, NULL). */
intval = (parms == NULL) ? 0 : NINT(parms[0]);
msta.All = mr->msta;
motor_start_trans_com(mr, MDrive_cards);