BuildCommDCBAndTimeouts patch
Kevin Groeneveld
kgroeneveld at mcmaster.ca
Mon Sep 8 20:21:16 CDT 2003
Ok, here is my first attempt at a real patch for wine (i.e. more than 3
lines).
This started off as a simple fix. I have a Windows program which makes
use of the serial communications routines. I found that this Windows
program would only ever open the com port once, then I had to close the
application and start it again. I tracked this problem down to the fact
that the first parameter to BuildCommDCBAndTimeouts is supposed to be a
constants string, but wine was modifying it.
As I was trying to fix the above problem, I found several other bugs in
BuildCommDCBAndTimeouts. For example, COMM_BuildOldCommDCB contained a
possible buffer overflow.
To try and verify the correct operation of BuildCommDCBAndTimeouts I
wrote a small Windows program. This program takes input from stdin,
passes it to BuildCommDCBAndTimeouts and then shows the results. I have
attached this program for if anyone wants to try and verify my
patch. I ran this program many times under Win 95, Win 2000 and wine to
try and make sure the results were consistent.
Changelog:
Kevin Groeneveld <kgroeneveld at mcmaster.ca>
Add missing wReserved1 member to DCB structure definition
Fix several bugs in BuildCommDCBAndTimeouts:
- make sure LPCSTR parameter is really treated as constant
- fix possible buffer overflow if passed in string is too long
- if the device control string is invalid, do not modify DCB
- do not clear entire DCB, only modify appropriate members
- fix parsing of stop bits parameter so it works for 1 and 1.5
- populate COMMTIMEOUTS when to=xxx parameter is specified
- added support for xon, odsr, octs, dtr, rts, and idsr parameters
- fix several other parsing errors
-------------- next part --------------
diff -ur wine-20030813/dlls/kernel/comm.c wine-20030813.patched/dlls/kernel/comm.c
--- wine-20030813/dlls/kernel/comm.c 2003-08-23 23:12:42.000000000 -0400
+++ wine-20030813.patched/dlls/kernel/comm.c 2003-09-08 20:43:08.000000000 -0400
@@ -153,134 +153,349 @@
}
/***********************************************************************
- * COMM_BuildOldCommDCB (Internal)
+ * COMM_Parse* (Internal)
*
- * Build a DCB using the old style settings string eg: "COMx:96,n,8,1"
- * We ignore the COM port index, since we can support more than 4 ports.
+ * The following COMM_Parse* functions are used by the BuildCommDCB
+ * functions to help parse the various parts of the device control string.
*/
-BOOL WINAPI COMM_BuildOldCommDCB(LPCSTR device, LPDCB lpdcb)
+static LPCSTR COMM_ParseStart(LPCSTR ptr)
{
- /* "COM1:96,n,8,1" */
- /* 012345 */
- char *ptr, temp[256], last;
- int rate;
+ /* The device control string may optionally start with "COMx" followed
+ by an optional ':' and spaces. */
+ if(!strncasecmp(ptr, "COM", 3))
+ {
+ ptr += 3;
- TRACE("(%s), ptr %p\n", device, lpdcb);
+ /* Allow any com port above 0 as Win 9x does (NT only allows
+ values for com ports which are actually present) */
+ if(*ptr < '1' || *ptr > '9')
+ return NULL;
+
+ /* Advance pointer past port number */
+ while(*ptr >= '0' && *ptr <= '9') ptr++;
+
+ /* The com port number must be followed by a ':' or ' ' */
+ if(*ptr != ':' && *ptr != ' ')
+ return NULL;
+
+ /* Advance pointer to beginning of next parameter */
+ while(*ptr == ' ') ptr++;
+ if(*ptr == ':')
+ {
+ ptr++;
+ while(*ptr == ' ') ptr++;
+ }
+ }
+ /* The device control string must not start with a space. */
+ else if(*ptr == ' ')
+ return NULL;
+
+ return ptr;
+}
+
+static LPCSTR COMM_ParseNumber(LPCSTR ptr, LPDWORD lpnumber)
+{
+ if(*ptr < '0' || *ptr > '9') return NULL;
+ if(!sscanf(ptr, "%ld", lpnumber)) return NULL;
+ while(*ptr >= '0' && *ptr <= '9') ptr++;
+ return ptr;
+}
- /* Some applications call this function with "9600,n,8,1"
- * not sending the "COM1:" parameter at left of string */
- if (!strncasecmp(device,"COM",3))
- {
- if (!device[3]) return FALSE;
- if (device[4] != ':' && device[4] != ' ') return FALSE;
- strcpy(temp,device+5);
- }
- else strcpy(temp,device);
+static LPCSTR COMM_ParseParity(LPCSTR ptr, LPBYTE lpparity)
+{
+ /* Contrary to what you might expect, Windows only sets the Parity
+ member of DCB and not fParity even when parity is specified in the
+ device control string */
+
+ switch(toupper(*ptr++))
+ {
+ case 'E':
+ *lpparity = EVENPARITY;
+ break;
+ case 'M':
+ *lpparity = MARKPARITY;
+ break;
+ case 'N':
+ *lpparity = NOPARITY;
+ break;
+ case 'O':
+ *lpparity = ODDPARITY;
+ break;
+ case 'S':
+ *lpparity = SPACEPARITY;
+ break;
+ default:
+ return NULL;
+ }
+
+ return ptr;
+}
+
+static LPCSTR COMM_ParseByteSize(LPCSTR ptr, LPBYTE lpbytesize)
+{
+ DWORD temp;
+
+ if(!(ptr = COMM_ParseNumber(ptr, &temp)))
+ return NULL;
+
+ if(temp >= 5 && temp <= 8)
+ {
+ *lpbytesize = temp;
+ return ptr;
+ }
+ else
+ return NULL;
+}
+
+static LPCSTR COMM_ParseStopBits(LPCSTR ptr, LPBYTE lpstopbits)
+{
+ DWORD temp;
+
+ if(!strncmp("1.5", ptr, 3))
+ {
+ ptr += 3;
+ *lpstopbits = ONE5STOPBITS;
+ }
+ else
+ {
+ if(!(ptr = COMM_ParseNumber(ptr, &temp)))
+ return NULL;
- last=temp[strlen(temp)-1];
- ptr = strtok(temp, ", ");
+ if(temp == 1)
+ *lpstopbits = ONESTOPBIT;
+ else if(temp == 2)
+ *lpstopbits = TWOSTOPBITS;
+ else
+ return NULL;
+ }
+
+ return ptr;
+}
- /* DOS/Windows only compares the first two numbers
- * and assigns an appropriate baud rate.
- * You can supply 961324245, it still returns 9600 ! */
- if (strlen(ptr) < 2)
+static LPCSTR COMM_ParseOnOff(LPCSTR ptr, LPDWORD lponoff)
+{
+ if(!strncasecmp("on", ptr, 2))
{
- WARN("Unknown baudrate string '%s' !\n", ptr);
- return FALSE; /* error: less than 2 chars */
+ ptr += 2;
+ *lponoff = 1;
}
- ptr[2] = '\0';
- rate = atoi(ptr);
+ else if(!strncasecmp("off", ptr, 3))
+ {
+ ptr += 3;
+ *lponoff = 0;
+ }
+ else
+ return NULL;
- switch (rate) {
+ return ptr;
+}
+
+/***********************************************************************
+ * COMM_BuildOldCommDCB (Internal)
+ *
+ * Build a DCB using the old style settings string eg: "96,n,8,1"
+ */
+static BOOL COMM_BuildOldCommDCB(LPCSTR device, LPDCB lpdcb)
+{
+ char last = 0;
+
+ if(!(device = COMM_ParseNumber(device, &lpdcb->BaudRate)))
+ return FALSE;
+
+ switch(lpdcb->BaudRate)
+ {
case 11:
case 30:
case 60:
- rate *= 10;
+ lpdcb->BaudRate *= 10;
break;
case 12:
case 24:
case 48:
case 96:
- rate *= 100;
+ lpdcb->BaudRate *= 100;
break;
case 19:
- rate = 19200;
+ lpdcb->BaudRate = 19200;
break;
- default:
- WARN("Unknown baudrate indicator %d !\n", rate);
- return FALSE;
}
- lpdcb->BaudRate = rate;
- TRACE("baudrate (%ld)\n", lpdcb->BaudRate);
+ while(*device == ' ') device++;
+ if(*device++ != ',') return FALSE;
+ while(*device == ' ') device++;
- ptr = strtok(NULL, ", ");
- if (islower(*ptr))
- *ptr = toupper(*ptr);
-
- TRACE("parity (%c)\n", *ptr);
- lpdcb->fParity = TRUE;
- switch (*ptr) {
- case 'N':
- lpdcb->Parity = NOPARITY;
- lpdcb->fParity = FALSE;
- break;
- case 'E':
- lpdcb->Parity = EVENPARITY;
+ if(!(device = COMM_ParseParity(device, &lpdcb->Parity)))
+ return FALSE;
+
+ while(*device == ' ') device++;
+ if(*device++ != ',') return FALSE;
+ while(*device == ' ') device++;
+
+ if(!(device = COMM_ParseByteSize(device, &lpdcb->ByteSize)))
+ return FALSE;
+
+ while(*device == ' ') device++;
+ if(*device++ != ',') return FALSE;
+ while(*device == ' ') device++;
+
+ if(!(device = COMM_ParseStopBits(device, &lpdcb->StopBits)))
+ return FALSE;
+
+ /* The last parameter for flow control is optional. */
+ while(*device == ' ') device++;
+ if(*device == ',')
+ {
+ device++;
+ while(*device == ' ') device++;
+ if(*device) last = toupper(*device++);
+ while(*device == ' ') device++;
+ }
+
+ switch(last)
+ {
+ case 0:
+ lpdcb->fInX = FALSE;
+ lpdcb->fOutX = FALSE;
+ lpdcb->fOutxCtsFlow = FALSE;
+ lpdcb->fOutxDsrFlow = FALSE;
+ lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
+ lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
break;
- case 'M':
- lpdcb->Parity = MARKPARITY;
+ case 'X':
+ lpdcb->fInX = TRUE;
+ lpdcb->fOutX = TRUE;
+ lpdcb->fOutxCtsFlow = FALSE;
+ lpdcb->fOutxDsrFlow = FALSE;
+ lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
+ lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
break;
- case 'O':
- lpdcb->Parity = ODDPARITY;
+ case 'P':
+ lpdcb->fInX = FALSE;
+ lpdcb->fOutX = FALSE;
+ lpdcb->fOutxCtsFlow = TRUE;
+ lpdcb->fOutxDsrFlow = TRUE;
+ lpdcb->fDtrControl = DTR_CONTROL_HANDSHAKE;
+ lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE;
break;
- case 'S':
- lpdcb->Parity = SPACEPARITY;
- break;
default:
- WARN("Unknown parity `%c'!\n", *ptr);
return FALSE;
}
- ptr = strtok(NULL, ", ");
- TRACE("charsize (%c)\n", *ptr);
- lpdcb->ByteSize = *ptr - '0';
-
- ptr = strtok(NULL, ", ");
- TRACE("stopbits (%c)\n", *ptr);
- switch (*ptr) {
- case '1':
- lpdcb->StopBits = ONESTOPBIT;
- break;
- case '2':
- lpdcb->StopBits = TWOSTOPBITS;
- break;
- default:
- WARN("Unknown # of stopbits `%c'!\n", *ptr);
- return FALSE;
+ /* This should be the end of the string. */
+ if(*device) return FALSE;
+
+ return TRUE;
+}
+
+/***********************************************************************
+ * COMM_BuildNewCommDCB (Internal)
+ *
+ * Build a DCB using the new style settings string.
+ * eg: "baud=9600 parity=n data=8 stop=1 xon=on to=on"
+ */
+static BOOL COMM_BuildNewCommDCB(LPCSTR device, LPDCB lpdcb, LPCOMMTIMEOUTS lptimeouts)
+{
+ DWORD temp;
+ BOOL baud = FALSE, stop = FALSE;
+
+ while(*device)
+ {
+ while(*device == ' ') device++;
+
+ if(!strncasecmp("baud=", device, 5))
+ {
+ baud = TRUE;
+
+ if(!(device = COMM_ParseNumber(device + 5, &lpdcb->BaudRate)))
+ return FALSE;
+ }
+ else if(!strncasecmp("parity=", device, 7))
+ {
+ if(!(device = COMM_ParseParity(device + 7, &lpdcb->Parity)))
+ return FALSE;
+ }
+ else if(!strncasecmp("data=", device, 5))
+ {
+ if(!(device = COMM_ParseByteSize(device + 5, &lpdcb->ByteSize)))
+ return FALSE;
+ }
+ else if(!strncasecmp("stop=", device, 5))
+ {
+ stop = TRUE;
+
+ if(!(device = COMM_ParseStopBits(device + 5, &lpdcb->StopBits)))
+ return FALSE;
+ }
+ else if(!strncasecmp("to=", device, 3))
+ {
+ if(!(device = COMM_ParseOnOff(device + 3, &temp)))
+ return FALSE;
+
+ lptimeouts->ReadIntervalTimeout = 0;
+ lptimeouts->ReadTotalTimeoutMultiplier = 0;
+ lptimeouts->ReadTotalTimeoutConstant = 0;
+ lptimeouts->WriteTotalTimeoutMultiplier = 0;
+ lptimeouts->WriteTotalTimeoutConstant = temp ? 60000 : 0;
+ }
+ else if(!strncasecmp("xon=", device, 4))
+ {
+ if(!(device = COMM_ParseOnOff(device + 4, &temp)))
+ return FALSE;
+
+ lpdcb->fOutX = temp;
+ lpdcb->fInX = temp;
+ }
+ else if(!strncasecmp("odsr=", device, 5))
+ {
+ if(!(device = COMM_ParseOnOff(device + 5, &temp)))
+ return FALSE;
+
+ lpdcb->fOutxDsrFlow = temp;
+ }
+ else if(!strncasecmp("octs=", device, 5))
+ {
+ if(!(device = COMM_ParseOnOff(device + 5, &temp)))
+ return FALSE;
+
+ lpdcb->fOutxCtsFlow = temp;
+ }
+ else if(!strncasecmp("dtr=", device, 4))
+ {
+ if(!(device = COMM_ParseOnOff(device + 4, &temp)))
+ return FALSE;
+
+ lpdcb->fDtrControl = temp;
+ }
+ else if(!strncasecmp("rts=", device, 4))
+ {
+ if(!(device = COMM_ParseOnOff(device + 4, &temp)))
+ return FALSE;
+
+ lpdcb->fRtsControl = temp;
+ }
+ else if(!strncasecmp("idsr=", device, 5))
+ {
+ if(!(device = COMM_ParseOnOff(device + 5, &temp)))
+ return FALSE;
+
+ lpdcb->fDsrSensitivity = temp;
+ }
+ else
+ return FALSE;
+
+ /* After the above parsing, the next character (if not the end of
+ the string) should be a space */
+ if(*device && *device != ' ')
+ return FALSE;
}
- if (last == 'x') {
- lpdcb->fInX = TRUE;
- lpdcb->fOutX = TRUE;
- lpdcb->fOutxCtsFlow = FALSE;
- lpdcb->fOutxDsrFlow = FALSE;
- lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
- lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
- } else if (last=='p') {
- lpdcb->fInX = FALSE;
- lpdcb->fOutX = FALSE;
- lpdcb->fOutxCtsFlow = TRUE;
- lpdcb->fOutxDsrFlow = FALSE;
- lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
- lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE;
- } else {
- lpdcb->fInX = FALSE;
- lpdcb->fOutX = FALSE;
- lpdcb->fOutxCtsFlow = FALSE;
- lpdcb->fOutxDsrFlow = FALSE;
- lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
- lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
+ /* If stop bits were not specified, a default is always supplied. */
+ if(!stop)
+ {
+ if(baud && lpdcb->BaudRate == 110)
+ lpdcb->StopBits = TWOSTOPBITS;
+ else
+ lpdcb->StopBits = ONESTOPBIT;
}
return TRUE;
@@ -318,83 +533,45 @@
BOOL WINAPI BuildCommDCBAndTimeoutsA(
LPCSTR device, /* [in] The ascii device control string. */
LPDCB lpdcb, /* [out] The device control block to be updated. */
- LPCOMMTIMEOUTS lptimeouts) /* [in] The timeouts to use if asked to set them by the control string. */
+ LPCOMMTIMEOUTS lptimeouts) /* [in] The COMMTIMEOUTS structure to be updated. */
{
- int port;
- char *ptr,*temp;
-
+ DCB dcb;
+ COMMTIMEOUTS timeouts;
+ BOOL result;
+ LPCSTR ptr = device;
+
TRACE("(%s,%p,%p)\n",device,lpdcb,lptimeouts);
- if (!strncasecmp(device,"COM",3)) {
- port=device[3]-'0';
- if (port--==0) {
- ERR("BUG! COM0 can't exist!\n");
- return FALSE;
- }
- if ((*(device+4)!=':') && (*(device+4)!=' '))
- return FALSE;
- temp=(LPSTR)(device+5);
- } else
- temp=(LPSTR)device;
+ /* Set DCBlength. (Windows NT does not do this, but 9x does) */
+ lpdcb->DCBlength = sizeof(DCB);
- memset(lpdcb,0,sizeof (DCB));
- lpdcb->DCBlength = sizeof(DCB);
- if (strchr(temp,',')) { /* old style */
-
- return COMM_BuildOldCommDCB(device,lpdcb);
- }
- ptr=strtok(temp," ");
- while (ptr) {
- DWORD flag,x;
-
- flag=0;
- if (!strncasecmp("baud=",ptr,5)) {
- if (!sscanf(ptr+5,"%ld",&x))
- WARN("Couldn't parse %s\n",ptr);
- lpdcb->BaudRate = x;
- flag=1;
- }
- if (!strncasecmp("stop=",ptr,5)) {
- if (!sscanf(ptr+5,"%ld",&x))
- WARN("Couldn't parse %s\n",ptr);
- lpdcb->StopBits = x;
- flag=1;
- }
- if (!strncasecmp("data=",ptr,5)) {
- if (!sscanf(ptr+5,"%ld",&x))
- WARN("Couldn't parse %s\n",ptr);
- lpdcb->ByteSize = x;
- flag=1;
- }
- if (!strncasecmp("parity=",ptr,7)) {
- lpdcb->fParity = TRUE;
- switch (ptr[7]) {
- case 'N':case 'n':
- lpdcb->fParity = FALSE;
- lpdcb->Parity = NOPARITY;
- break;
- case 'E':case 'e':
- lpdcb->Parity = EVENPARITY;
- break;
- case 'O':case 'o':
- lpdcb->Parity = ODDPARITY;
- break;
- case 'M':case 'm':
- lpdcb->Parity = MARKPARITY;
- break;
- case 'S':case 's':
- lpdcb->Parity = SPACEPARITY;
- break;
- }
- flag=1;
- }
- if (!flag)
- ERR("Unhandled specifier '%s', please report.\n",ptr);
- ptr=strtok(NULL," ");
+ /* Make a copy of the original data structures to work with since if
+ if there is an error in the device control string the originals
+ should not be modified (except possibly DCBlength) */
+ memcpy(&dcb, lpdcb, sizeof(DCB));
+ if(lptimeouts) memcpy(&timeouts, lptimeouts, sizeof(COMMTIMEOUTS));
+
+ ptr = COMM_ParseStart(ptr);
+
+ if(ptr == NULL)
+ result = FALSE;
+ else if(strchr(ptr, ','))
+ result = COMM_BuildOldCommDCB(ptr, &dcb);
+ else
+ result = COMM_BuildNewCommDCB(ptr, &dcb, &timeouts);
+
+ if(result)
+ {
+ memcpy(lpdcb, &dcb, sizeof(DCB));
+ if(lptimeouts) memcpy(lptimeouts, &timeouts, sizeof(COMMTIMEOUTS));
+ return TRUE;
}
- if (lpdcb->BaudRate==110)
- lpdcb->StopBits = 2;
- return TRUE;
+ else
+ {
+ WARN("Invalid device control string: %s\n", device);
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
}
/**************************************************************************
@@ -411,7 +588,7 @@
BOOL WINAPI BuildCommDCBAndTimeoutsW(
LPCWSTR devid, /* [in] The unicode device control string. */
LPDCB lpdcb, /* [out] The device control block to be updated. */
- LPCOMMTIMEOUTS lptimeouts) /* [in] The timeouts to use if asked to set them by the control string. */
+ LPCOMMTIMEOUTS lptimeouts) /* [in] The COMMTIMEOUTS structure to be updated. */
{
BOOL ret = FALSE;
LPSTR devidA;
@@ -2087,3 +2264,4 @@
}
return ret;
}
+
diff -ur wine-20030813/include/winbase.h wine-20030813.patched/include/winbase.h
--- wine-20030813/include/winbase.h 2003-08-23 23:12:51.000000000 -0400
+++ wine-20030813.patched/include/winbase.h 2003-09-08 20:19:39.000000000 -0400
@@ -976,6 +976,7 @@
char ErrorChar;
char EofChar;
char EvtChar;
+ WORD wReserved1;
} DCB, *LPDCB;
typedef struct tagCOMMCONFIG {
-------------- next part --------------
#include <windows.h>
#include <stdio.h>
void ShowResult(char* szVariable, DWORD data1, DWORD data2)
{
printf(szVariable);
if(data1 == data2)
printf("%d\n", data1);
else
printf("n/a\n");
}
void main(void)
{
char string[0x400];
DCB dcb1, dcb2;
COMMTIMEOUTS time1, time2;
BOOL bResult;
for(;;)
{
gets(string);
if(strlen(string) == 0) break;
memset(&dcb1, 0x00, sizeof(DCB));
memset(&dcb2, 0xFF, sizeof(DCB));
memset(&time1, 0x00, sizeof(COMMTIMEOUTS));
memset(&time2, 0xFF, sizeof(COMMTIMEOUTS));
bResult = BuildCommDCBAndTimeouts(string, &dcb1, &time1);
BuildCommDCBAndTimeouts(string, &dcb2, &time2);
if(bResult)
printf("\nbResult : TRUE\n\n");
else
{
printf("\nbResult : FALSE - ");
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0, string, sizeof(string), NULL);
printf(string);
printf("\n");
}
ShowResult("DCBlength : ", dcb1.DCBlength, dcb2.DCBlength);
ShowResult("BaudRate : ", dcb1.BaudRate, dcb2.BaudRate);
ShowResult("fBinary : ", dcb1.fBinary, dcb2.fBinary);
ShowResult("fParity : ", dcb1.fParity, dcb2.fParity);
ShowResult("fOutxCtsFlow : ", dcb1.fOutxCtsFlow, dcb2.fOutxCtsFlow);
ShowResult("fOutxDsrFlow : ", dcb1.fOutxDsrFlow, dcb2.fOutxDsrFlow);
ShowResult("fDtrControl : ", dcb1.fDtrControl, dcb2.fDtrControl);
ShowResult("fDsrSensitivity : ", dcb1.fDsrSensitivity, dcb2.fDsrSensitivity);
ShowResult("fTXContinueOnXoff : ", dcb1.fTXContinueOnXoff, dcb2.fTXContinueOnXoff);
ShowResult("fOutX : ", dcb1.fOutX, dcb2.fOutX);
ShowResult("fInX : ", dcb1.fInX, dcb2.fInX);
ShowResult("fErrorChar : ", dcb1.fErrorChar, dcb2.fErrorChar);
ShowResult("fNull : ", dcb1.fNull, dcb2.fNull);
ShowResult("fRtsControl : ", dcb1.fRtsControl, dcb2.fRtsControl);
ShowResult("fAbortOnError : ", dcb1.fAbortOnError, dcb2.fAbortOnError);
ShowResult("fDummy2 : ", dcb1.fDummy2, dcb2.fDummy2);
ShowResult("wReserved : ", dcb1.wReserved, dcb2.wReserved);
ShowResult("XonLim : ", dcb1.XonLim, dcb2.XonLim);
ShowResult("XoffLim : ", dcb1.XoffLim, dcb2.XoffLim);
ShowResult("ByteSize : ", dcb1.ByteSize, dcb2.ByteSize);
ShowResult("Parity : ", dcb1.Parity, dcb2.Parity);
ShowResult("StopBits : ", dcb1.StopBits, dcb2.StopBits);
ShowResult("XonChar : ", dcb1.XonChar, dcb2.XonChar);
ShowResult("XoffChar : ", dcb1.XoffChar, dcb2.XoffChar);
ShowResult("ErrorChar : ", dcb1.ErrorChar, dcb2.ErrorChar);
ShowResult("EofChar : ", dcb1.EofChar, dcb2.EofChar);
ShowResult("EvtChar : ", dcb1.EvtChar, dcb2.EvtChar);
ShowResult("wReserved1 : ", dcb1.wReserved1, dcb2.wReserved1);
printf("\n");
ShowResult("ReadIntervalTimeout : ", time1.ReadIntervalTimeout, time2.ReadIntervalTimeout);
ShowResult("ReadTotalTimeoutMultiplier : ", time1.ReadTotalTimeoutMultiplier, time2.ReadTotalTimeoutMultiplier);
ShowResult("ReadTotalTimeoutConstant : ", time1.ReadTotalTimeoutConstant, time2.ReadTotalTimeoutConstant);
ShowResult("WriteTotalTimeoutMultiplier : ", time1.WriteTotalTimeoutMultiplier, time2.WriteTotalTimeoutMultiplier);
ShowResult("WriteTotalTimeoutConstant : ", time1.WriteTotalTimeoutConstant, time2.WriteTotalTimeoutConstant);
printf("\n");
}
}
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