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109 lines
2.3 KiB
109 lines
2.3 KiB
/*** debugger.c - Debugger functions
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*
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* This module contains all the debug functions.
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*
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* Copyright (c) 1996,1997 Microsoft Corporation
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* Author: Michael Tsang (MikeTs)
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* Created 09/18/96
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*
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* MODIFICATION HISTORY
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*/
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#include "pch.h"
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#ifdef DEBUGGER
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/*** Miscellaneous Constants
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*/
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#define MAX_CMDLINE_LEN 255
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/*** Local function prototypes
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*/
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LONG LOCAL DbgExecuteCmd(PDBGCMD pDbgCmds, PSZ pszCmd);
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/*** Local data
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*/
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PSZ pszTokenSeps = " \t\n";
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/***LP Debugger - generic debugger entry point
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*
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* ENTRY
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* pDbgCmds -> debugger command table
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* pszPrompt -> prompt string
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*
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* EXIT
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* None
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*/
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VOID LOCAL Debugger(PDBGCMD pDbgCmds, PSZ pszPrompt)
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{
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char szCmdLine[MAX_CMDLINE_LEN + 1];
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PSZ psz;
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for (;;)
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{
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ConPrompt(pszPrompt, szCmdLine, sizeof(szCmdLine));
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if ((psz = STRTOK(szCmdLine, pszTokenSeps)) != NULL)
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{
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if (DbgExecuteCmd(pDbgCmds, psz) == DBGERR_QUIT)
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break;
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}
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}
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} //Debugger
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/***LP DbgExecuteCmd - execute a debugger command
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*
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* ENTRY
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* pDbgCmds -> debugger command table
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* pszCmd -> command string
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*
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* EXIT-SUCCESS
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* returns DBGERR_NONE or DBGERR_QUIT
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* EXIT-FAILURE
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* returns negative error code
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*/
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LONG LOCAL DbgExecuteCmd(PDBGCMD pDbgCmds, PSZ pszCmd)
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{
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LONG rc = DBGERR_NONE;
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int i;
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ULONG dwNumArgs = 0, dwNonSWArgs = 0;
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for (i = 0; pDbgCmds[i].pszCmd != NULL; i++)
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{
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if (STRCMP(pszCmd, pDbgCmds[i].pszCmd) == 0)
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{
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if (pDbgCmds[i].dwfCmd & CMDF_QUIT)
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{
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rc = DBGERR_QUIT;
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}
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else if ((pDbgCmds[i].pArgTable == NULL) ||
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((rc = DbgParseArgs(pDbgCmds[i].pArgTable, &dwNumArgs,
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&dwNonSWArgs, pszTokenSeps)) ==
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ARGERR_NONE))
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{
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if (pDbgCmds[i].pfnCmd != NULL)
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rc = pDbgCmds[i].pfnCmd(NULL, NULL, dwNumArgs, dwNonSWArgs);
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}
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else
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rc = DBGERR_PARSE_ARGS;
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break;
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}
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}
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if (pDbgCmds[i].pszCmd == NULL)
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{
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DBG_ERROR(("invalid command - %s", pszCmd));
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rc = DBGERR_INVALID_CMD;
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}
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return rc;
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} //DbgExecuteCmd
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#endif //ifdef DEBUGGER
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