Replace deprecated sprintf

src/ccmain/paramsd.cpp

@@ -32,7 +32,7 @@
 #  include "svmnode.h"        // for SVMenuNode
 #  include "tesseractclass.h" // for Tesseract
 
-#  include <cstdio>  // for fclose, fopen, fprintf, sprintf, FILE
+#  include <cstdio>  // for fclose, fopen, fprintf, FILE
 #  include <cstdlib> // for atoi
 #  include <cstring> // for strcmp, strcspn, strlen, strncpy
 #  include <locale>  // for std::locale::classic
@@ -319,16 +319,12 @@ ParamsEditor::ParamsEditor(tesseract::Tesseract *tess, ScrollView *sv) {
 // Write all (changed_) parameters to a config file.
 void ParamsEditor::WriteParams(char *filename, bool changes_only) {
   FILE *fp; // input file
-  char msg_str[255];
   // if file exists
   if ((fp = fopen(filename, "rb")) != nullptr) {
     fclose(fp);
-    sprintf(msg_str,
-            "Overwrite file "
-            "%s"
-            "? (Y/N)",
-            filename);
-    int a = sv_window_->ShowYesNoDialog(msg_str);
+    std::stringstream msg;
+    msg << "Overwrite file " << filename << "? (Y/N)";
+    int a = sv_window_->ShowYesNoDialog(msg.str().c_str());
     if (a == 'n') {
       return;
     } // don't write

src/ccmain/pgedit.cpp

@@ -36,6 +36,9 @@
 
 #include <cctype>
 #include <cmath>
+#include <iomanip> // for std::setprecision
+#include <locale>  // for std::locale::classic
+#include <sstream> // for std::stringstream
 
 #ifndef GRAPHICS_DISABLED
 namespace tesseract {
@@ -140,32 +143,30 @@ static void show_point(PAGE_RES *page_res, float x, float y) {
   FCOORD pt(x, y);
   PAGE_RES_IT pr_it(page_res);
 
-  const int kBufsize = 512;
-  char msg[kBufsize];
-  char *msg_ptr = msg;
-
-  msg_ptr += sprintf(msg_ptr, "Pt:(%0.3f, %0.3f) ", x, y);
+  std::stringstream msg;
+  msg.imbue(std::locale::classic());
+  msg << std::fixed << std::setprecision(3) << "Pt:(" << x << ", " << y << ") ";
 
   for (WERD_RES *word = pr_it.word(); word != nullptr; word = pr_it.forward()) {
     if (pr_it.row() != pr_it.prev_row() && pr_it.row()->row->bounding_box().contains(pt)) {
-      msg_ptr += sprintf(msg_ptr, "BL(x)=%0.3f ", pr_it.row()->row->base_line(x));
+      msg << "BL(x)=" << pr_it.row()->row->base_line(x) << ' ';
     }
     if (word->word->bounding_box().contains(pt)) {
       TBOX box = word->word->bounding_box();
-      msg_ptr += sprintf(msg_ptr, "Wd(%d, %d)/(%d, %d) ", box.left(), box.bottom(), box.right(),
-                         box.top());
+      msg << "Wd(" << box.left() << ", " << box.bottom() << ")/("
+          << box.right() << ", " << box.top() << ") ";
       C_BLOB_IT cblob_it(word->word->cblob_list());
       for (cblob_it.mark_cycle_pt(); !cblob_it.cycled_list(); cblob_it.forward()) {
         C_BLOB *cblob = cblob_it.data();
         box = cblob->bounding_box();
         if (box.contains(pt)) {
-          msg_ptr += sprintf(msg_ptr, "CBlb(%d, %d)/(%d, %d) ", box.left(), box.bottom(),
-                             box.right(), box.top());
+          msg << "CBlb(" << box.left() << ", " << box.bottom() << ")/("
+              << box.right() << ", " << box.top() << ") ";
         }
       }
     }
   }
-  image_win->AddMessage(msg);
+  image_win->AddMessage(msg.str().c_str());
 }
 
 /**
@@ -622,7 +623,7 @@ void Tesseract::process_image_event( // action in image win
           break;
 
         default:
-          sprintf(msg, "Mode %d not yet implemented", mode);
+          snprintf(msg, sizeof(msg), "Mode %d not yet implemented", mode);
           image_win->AddMessage(msg);
           break;
       }

src/ccutil/errcode.cpp

@@ -22,6 +22,8 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <iostream> // for std::cerr
+#include <sstream>  // for std::stringstream
 
 namespace tesseract {
 
@@ -41,37 +43,26 @@ void ERRCODE::error(         // handle error
     const char *format, ...  // special message
     ) const {
   va_list args; // variable args
-  char msg[MAX_MSG];
-  char *msgptr = msg;
+  std::stringstream msg;
 
   if (caller != nullptr) {
     // name of caller
-    msgptr += sprintf(msgptr, "%s:", caller);
+    msg << caller << ':';
   }
   // actual message
-  msgptr += sprintf(msgptr, "Error:%s", message);
+  msg << "Error:" << message;
   if (format != nullptr) {
-    msgptr += sprintf(msgptr, ":");
+    char str[MAX_MSG];
     va_start(args, format); // variable list
-#ifdef _WIN32
-                            // print remainder
-    msgptr += _vsnprintf(msgptr, MAX_MSG - 2 - (msgptr - msg), format, args);
-    msg[MAX_MSG - 2] = '\0'; // ensure termination
-    strcat(msg, "\n");
-#else
-                            // print remainder
-    msgptr += vsprintf(msgptr, format, args);
-    // no specific
-    msgptr += sprintf(msgptr, "\n");
-#endif
+    // print remainder
+    std::vsnprintf(str, sizeof(str), format, args);
+    // ensure termination
+    str[sizeof(str) - 1] = '\0';
     va_end(args);
-  } else {
-    // no specific
-    msgptr += sprintf(msgptr, "\n");
+    msg << ':' << str;
   }
 
-  // %s is needed here so msg is printed correctly!
-  fprintf(stderr, "%s", msg);
+  std::cerr << msg.str() << '\n';
 
   switch (action) {
     case DBG:

src/ccutil/unicharset.cpp

@@ -314,10 +314,10 @@ std::string UNICHARSET::debug_utf8_str(const char *str) {
     step = UNICHAR::utf8_step(str + i);
     if (step == 0) {
       step = 1;
-      sprintf(hex, "%x", str[i]);
+      snprintf(hex, sizeof(hex), "%x", str[i]);
     } else {
       UNICHAR ch(str + i, step);
-      sprintf(hex, "%x", ch.first_uni());
+      snprintf(hex, sizeof(hex), "%x", ch.first_uni());
     }
     result += hex;
     result += " ";

src/opencl/openclwrapper.cpp

@@ -812,15 +812,16 @@ int OpenclDevice::BinaryGenerated(const char *clFileName, FILE **fhandle) {
   cl_int clStatus;
   int status = 0;
   FILE *fd = nullptr;
-  char fileName[256] = {0}, cl_name[128] = {0};
+  char fileName[256];
+  char cl_name[128];
   char deviceName[1024];
   clStatus = clGetDeviceInfo(gpuEnv.mpArryDevsID[i], CL_DEVICE_NAME, sizeof(deviceName), deviceName,
                              nullptr);
   CHECK_OPENCL(clStatus, "clGetDeviceInfo");
   const char *str = strstr(clFileName, ".cl");
   memcpy(cl_name, clFileName, str - clFileName);
   cl_name[str - clFileName] = '\0';
-  sprintf(fileName, "%s-%s.bin", cl_name, deviceName);
+  snprintf(fileName, sizeof(fileName), "%s-%s.bin", cl_name, deviceName);
   legalizeFileName(fileName);
   fd = fopen(fileName, "rb");
   status = (fd != nullptr) ? 1 : 0;
@@ -894,9 +895,9 @@ int OpenclDevice::GeneratBinFromKernelSource(cl_program program, const char *clF
 
   /* dump out each binary into its own separate file. */
   for (i = 0; i < numDevices; i++) {
-    char fileName[256] = {0}, cl_name[128] = {0};
-
     if (binarySizes[i] != 0) {
+      char fileName[256];
+      char cl_name[128];
       char deviceName[1024];
       clStatus =
           clGetDeviceInfo(mpArryDevsID[i], CL_DEVICE_NAME, sizeof(deviceName), deviceName, nullptr);
@@ -905,7 +906,7 @@ int OpenclDevice::GeneratBinFromKernelSource(cl_program program, const char *clF
       const char *str = strstr(clFileName, ".cl");
       memcpy(cl_name, clFileName, str - clFileName);
       cl_name[str - clFileName] = '\0';
-      sprintf(fileName, "%s-%s.bin", cl_name, deviceName);
+      snprintf(fileName, sizeof(fileName), "%s-%s.bin", cl_name, deviceName);
       legalizeFileName(fileName);
       if (!WriteBinaryToFile(fileName, binaries[i], binarySizes[i])) {
         tprintf("[OD] write binary[%s] failed\n", fileName);

src/wordrec/findseam.cpp

@@ -103,7 +103,6 @@ void Wordrec::add_seam_to_queue(float new_priority, SEAM *new_seam, SeamQueue *s
 void Wordrec::choose_best_seam(SeamQueue *seam_queue, const SPLIT *split, PRIORITY priority,
                                SEAM **seam_result, TBLOB *blob, SeamPile *seam_pile) {
   SEAM *seam;
-  char str[80];
   float my_priority;
   /* Add seam of split */
   my_priority = priority;
@@ -133,7 +132,8 @@ void Wordrec::choose_best_seam(SeamQueue *seam_queue, const SPLIT *split, PRIORI
         seam->FullPriority(bbox.left(), bbox.right(), chop_overlap_knob, chop_centered_maxwidth,
                            chop_center_knob, chop_width_change_knob);
     if (chop_debug) {
-      sprintf(str, "Full my_priority %0.0f,  ", my_priority);
+      char str[80];
+      snprintf(str, sizeof(str), "Full my_priority %0.0f,  ", my_priority);
       seam->Print(str);
     }