Misc fixes found by static code analysis

.gitignore

@@ -16,6 +16,7 @@ O.*/
 *.swp
 *_BAK.adl
 /QtC-*
+/.qtc_*
 cdCommands
 envPaths
 dllPath.bat

asyn/asynDriver/asynManager.c

@@ -3000,7 +3000,7 @@ static int traceVprintIOSource(asynUser *pasynUser,int reason,
         }
     }
     /* If the traceIOMask is 0 or traceTruncateSize <=0 we need to output a newline */
-    if((traceIOMask == 0) || (traceTruncateSize <=0)) {
+    if((traceIOMask == 0) || (traceTruncateSize ==0)) {
         if(fp) {
             nout += fprintf(fp,"\n");
         } else {

asyn/asynGpib/drvSkeleton.c

@@ -136,7 +136,7 @@ static asynGpib skeletonDriver = {
     serialPollEnd
 };
 
-int skeletonDriverConfig(const char *name, /*Start of device dependent args*/)
+int skeletonDriverConfig(const char *name /*, ... Start of device dependent args*/)
 {
     skeletonPvt *pskeletonPvt;
     char *portName;

asyn/asynPortClient/asynPortClient.cpp

@@ -29,7 +29,7 @@
 asynParamClient::asynParamClient(const char *portName, int addr, const char *asynInterfaceType, const char *drvInfo,
                        double timeout)
     : pasynUser_(NULL), pasynUserSyncIO_(NULL), timeout_(timeout), portName_(epicsStrDup(portName)),
-      addr_(addr), asynInterfaceType_(epicsStrDup(asynInterfaceType)), drvInfo_(NULL)
+    addr_(addr), asynInterfaceType_(epicsStrDup(asynInterfaceType)), drvInfo_(NULL), drvPvt(NULL)
     ,interruptPvt_(NULL)
 {
     asynStatus status;

asyn/devEpics/devAsynOctet.c

@@ -315,7 +315,7 @@ static long initCommon(dbCommon *precord, DBLINK *plink, userCallback callback,
            goto bad;
         }
     }
-    if(valSize <= 0) {
+    if (valSize == 0) {
        printf("%s record size must be > 0\n",precord->name);
        precord->pact = 1;
        goto bad;
@@ -629,7 +629,7 @@ static int initCmdBuffer(devPvt *pPvt)
     static const char *functionName="initCmdBuffer";
 
     len = strlen(pPvt->userParam);
-    if(len<=0) {
+    if (len == 0) {
         printf("%s  %s::%s no userParam\n",precord->name, driverName, functionName);
         precord->pact = 1;
         recGblSetSevr(precord,LINK_ALARM,INVALID_ALARM);

asyn/devGpib/devGpibConvertExample.c

@@ -201,7 +201,7 @@ static int writeCvtio(gpibDpvt *pgpibDpvt,int P1, int P2, char **P3)
     pgpibDpvt->msgInputLen = 0;
 
     lenmsg = writeString(pgpibDpvt,P1,P2,P3);
-    if(lenmsg <= 0) return -1;
+    if (lenmsg == 0) return -1;
     status  = pasynOctet->write(asynOctetPvt,pasynUser,
         pgpibDpvt->msg,lenmsg,&nsent);
     if(nsent==lenmsg) {

asyn/drvAsynFTDI/drvAsynFTDIPort.cpp

@@ -428,7 +428,7 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
         return status;
       }
     }
-    if (maxchars <= 0) {
+    if (maxchars == 0) {
         epicsSnprintf(pasynUser->errorMessage,pasynUser->errorMessageSize,
                   "%d:%d maxchars %d. Why <=0?\n",ftdi->FTDIvendor, ftdi->FTDIproduct,(int)maxchars);
         return asynError;
@@ -447,9 +447,6 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
       }
     }
 
-    if (thisRead < 0){
-        thisRead = 0;
-    }
     *nbytesTransfered = thisRead;
 
     /* If there is room add a null byte */
@@ -523,7 +520,7 @@ drvAsynFTDIPortConfigure(const char *portName,
     int SPI = ((mode & UART_SPI_BIT)==UART_SPI_BIT)? 1:0;
 
     printf("drvAsynFTDIPortConfigure: latency=%d\n", latency);
-    printf("drvAsynFTDIPortConfigure: priority=%d\n", priority);
+    printf("drvAsynFTDIPortConfigure: priority=%u\n", priority);
     printf("drvAsynFTDIPortConfigure: noAutoconnect=%d\n", noAutoConnect);
     printf("drvAsynFTDIPortConfigure: noProcessEos=%d\n", noProcessEos);
     printf("drvAsynFTDIPortConfigure: mode="); SPI ? printf("SPI\n") : printf("UART\n");

asyn/drvAsynFTDI/ftdiDriver.cpp

@@ -45,7 +45,13 @@ void debugPrint(...){}
  * @param vendor - Vendor ID
  * @param product - Product ID
  */
-FTDIDriver::FTDIDriver(int mode):spi(mode)
+FTDIDriver::FTDIDriver(int mode)
+    : ftdi_(nullptr)
+    , spi(mode)
+    , spiInit(0)
+    , buf({0})
+    , pinState(0)
+    , pinDirection(0)
 {
   static const char *functionName = "FTDIDriver::FTDIDriver";
   debugPrint("%s : Method called - ", functionName);
@@ -66,8 +72,6 @@ FTDIDriver::FTDIDriver(int mode):spi(mode)
   parity_ = NONE;
   break_ = BREAK_OFF;
   flowctrl_ = SIO_DISABLE_FLOW_CTRL;
-  spiInit = 0; // Status whether init done
-  memset(buf, 0, sizeof(buf));
 }
 
 FTDIDriverStatus FTDIDriver::initSPI() {
@@ -88,7 +92,7 @@ FTDIDriverStatus FTDIDriver::initSPI() {
   // MASTER RESET
   pinState = Pin::CS|Pin::SYNCIO|Pin::RESET;
   pinDirection = Pin::SK|Pin::DO|Pin::CS|Pin::SYNCIO|Pin::RESET;
-  pbuf = (unsigned char *)&buf[0];
+  unsigned char *pbuf = (unsigned char *)&buf[0];
   *(pbuf + i++) = TCK_DIVISOR;     // opcode: set clk divisor
   *(pbuf + i++) = 0x05;            // argument: low bit. 60 MHz / (5+1) = 1 MHz
   *(pbuf + i++) = 0x00;            // argument: high bit.
@@ -574,7 +578,7 @@ FTDIDriverStatus FTDIDriver::write(const unsigned char *buffer, int bufferSize,
   if( spi ) {
     if( !spiInit ) initSPI();
     i = 0;
-    pbuf = (unsigned char *)&buf[0];
+    unsigned char *pbuf = (unsigned char *)&buf[0];
 
     memcpy((pbuf+i), buffer, bufferSize);
     i+= bufferSize;
@@ -602,11 +606,11 @@ FTDIDriverStatus FTDIDriver::write(const unsigned char *buffer, int bufferSize,
   if (rc[3] > 0){
     // Since we write also the address byte byteswritten = sz+1
     *bytesWritten = (size_t)(sz+1);
-    debugPrint("%s : %d bytes written err=%d: ", functionName, *bytesWritten, err);
+    debugPrint("%s : %lu bytes written err=%d: ", functionName, *bytesWritten, err);
     if( err == FTDIDriverError ) debugPrint("FTDIDriverError\n");
     else                         debugPrint("FTDIDriverSUCCESS\n");
   } else {
-    debugPrint("FTDI write error: %d (%s)\n", rc, ftdi_get_error_string(ftdi_));
+    debugPrint("FTDI write error: %lu (%s)\n", rc, ftdi_get_error_string(ftdi_));
     *bytesWritten = 0;
     return FTDIDriverError;
   }
@@ -636,7 +640,7 @@ FTDIDriverStatus FTDIDriver::read(unsigned char *buffer, size_t bufferSize, size
     return FTDIDriverError;
   }
 
-  debugPrint("%s : Reading: bufferSize=%d, timeout=%d\n", functionName, bufferSize, timeout);
+  debugPrint("%s : Reading: bufferSize=%lu, timeout=%d\n", functionName, bufferSize, timeout);
 
   timeval stime;
   timeval ctime;

asyn/drvAsynFTDI/ftdiDriver.h

@@ -94,7 +94,6 @@ class FTDIDriver {
     int            spi;
     int            spiInit;
     int            buf[0x10000];
-    unsigned char *pbuf;
 
     int connected_;
     int vendor_;

asyn/drvAsynSerial/drvAsynIPPort.c

@@ -733,7 +733,7 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
             return asynError;
         }
     }
-    if (maxchars <= 0) {
+    if (maxchars == 0) {
         epicsSnprintf(pasynUser->errorMessage,pasynUser->errorMessageSize,
                   "%s maxchars %d. Why <=0?",tty->IPDeviceName,(int)maxchars);
         return asynError;

asyn/drvAsynSerial/drvAsynIPServerPort.c

@@ -177,7 +177,7 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
     asynPrint(pasynUser, ASYN_TRACE_FLOW,
             "%s %p read.\n", tty->IPDeviceName, tty->pasynUser);
 
-    if (maxchars <= 0) {
+    if (maxchars == 0) {
         epicsSnprintf(pasynUser->errorMessage, pasynUser->errorMessageSize,
                 "%s maxchars %d. Why <=0?\n", tty->IPDeviceName, (int) maxchars);
         return asynError;
@@ -416,7 +416,7 @@ int createServerSocket(ttyController_t *tty) {
             srvaddrtxt[sizeof(srvaddrtxt) - 1] = '\0';
             printf("serverAddr: %s\n", srvaddrtxt);
         }
-        printf("serverPort: %i\n", tty->portNumber);
+        printf("serverPort: %u\n", tty->portNumber);
         if (tty->socketType == SOCK_DGRAM) {
             /* For Port reuse, multiple IOCs */
             epicsSocketEnableAddressUseForDatagramFanout(tty->fd);
@@ -530,7 +530,7 @@ int drvAsynIPServerPortConfigure(const char *portName,
         printf("TCP server information missing.\n");
         return -1;
     }
-    if (maxClients <= 0) {
+    if (maxClients == 0) {
         printf("No clients.\n");
         return -1;
     }

asyn/drvAsynSerial/drvAsynSerialPort.c

@@ -838,7 +838,7 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
                                 "%s disconnected:", tty->serialDeviceName);
         return asynError;
     }
-    if (maxchars <= 0) {
+    if (maxchars == 0) {
         epicsSnprintf(pasynUser->errorMessage,pasynUser->errorMessageSize,
             "%s maxchars %d Why <=0?",tty->serialDeviceName,(int)maxchars);
         return asynError;

asyn/drvAsynSerial/drvAsynSerialPortWin32.c

@@ -524,7 +524,7 @@ static asynStatus readIt(void *drvPvt, asynUser *pasynUser,
                                 "%s disconnected:", tty->serialDeviceName);
         return asynError;
     }
-    if (maxchars <= 0) {
+    if (maxchars == 0) {
         epicsSnprintf(pasynUser->errorMessage,pasynUser->errorMessageSize,
             "%s maxchars %d Why <=0?",tty->serialDeviceName,(int)maxchars);
         return asynError;

asyn/linuxGpib/drvLinuxGpib.c

@@ -570,7 +570,7 @@ static asynStatus setEos(void *pdrvPvt,asynUser *pasynUser,const char *eos,int e
         ibconfig(pGpibBoardPvt->uddev[primaryAddr][secondaryAddr],IbcEOSrd,1);
 
         if(DEBUG)
-            printf("Seting EOS: %u\n",*eos);
+            printf("Seting EOS: %d\n", *eos);
 
         status=checkError(pdrvPvt,pasynUser,addr);
         if(status!=asynSuccess)return status;

asyn/miscellaneous/asynShellCommands.c

@@ -264,7 +264,7 @@ getEos(asynUser *pasynUser)
     default:     getFunc = NULL;                                  break;
     }
     if (getFunc) {
-        int l;
+        int l = 0;
         peosargs->status = (*getFunc)(peosargs->drvPvt, pasynUser, peosargs->eos, sizeof peosargs->eos, &l);
         peosargs->eosLen = l;
     }