From dc39575fb3ef90e5a2689babe7fb335cd88f6727 Mon Sep 17 00:00:00 2001
From: maxim nikonov <maxim.nikonov@hqo.co>
Date: Thu, 5 Feb 2026 21:32:25 +0500
Subject: wip

---
 src/Fl_Native_File_Chooser_Zenity.cxx | 58 +++++++++++++++++------------------
 1 file changed, 29 insertions(+), 29 deletions(-)

(limited to 'src/Fl_Native_File_Chooser_Zenity.cxx')

diff --git a/src/Fl_Native_File_Chooser_Zenity.cxx b/src/Fl_Native_File_Chooser_Zenity.cxx
index c765b8827..b4a75b62e 100644
--- a/src/Fl_Native_File_Chooser_Zenity.cxx
+++ b/src/Fl_Native_File_Chooser_Zenity.cxx
@@ -36,8 +36,7 @@ bool Fl_Zenity_Native_File_Chooser_Driver::have_looked_for_zenity = false;
 Fl_Zenity_Native_File_Chooser_Driver::Fl_Zenity_Native_File_Chooser_Driver(int val) :  Fl_Kdialog_Native_File_Chooser_Driver(val) {
 }
 
-void Fl_Zenity_Native_File_Chooser_Driver::append_filter(std::string& ret_command) {
-  // TODO: This could probably be simplified + toughened with std::string -erco 1/10/24
+void Fl_Zenity_Native_File_Chooser_Driver::append_filter(char *ret_command, int *pos, int maxlen) {
   int l;
   int lcommand = 10000;
   char *command = new char[lcommand];
@@ -46,7 +45,7 @@ void Fl_Zenity_Native_File_Chooser_Driver::append_filter(std::string& ret_comman
   char *p = strtok(parsed_filter_copy, "\n");
   while (p) {
     char *op = strchr(p, '(');
-    l = strlen(command);
+    l = (int)strlen(command);
     snprintf(command+l, lcommand-l, " --file-filter='%s|", p);
     char *cp = strchr(p, ')');
     *cp = 0;
@@ -55,28 +54,30 @@ void Fl_Zenity_Native_File_Chooser_Driver::append_filter(std::string& ret_comman
       *ob = 0;
       char *cb = strchr(ob+1, ']');
       char aux[100];
-      for (char *q = ob+1; q < cb; q++) {
+      char *q;
+      for (q = ob+1; q < cb; q++) {
         strcpy(aux, op+1);
-        int la = strlen(aux);
+        int la = (int)strlen(aux);
         aux[la++] = *q;
-        if (cb < cp-1) { strcpy(aux+la, cb+1); la += strlen(cb+1); }
+        if (cb < cp-1) { strcpy(aux+la, cb+1); la += (int)strlen(cb+1); }
         aux[la] = 0;
-        l = strlen(command);
+        l = (int)strlen(command);
         snprintf(command+l, lcommand-l, " %s", aux);
       }
       strcat(command, "'");
     } else {
-      l = strlen(command);
+      l = (int)strlen(command);
       snprintf(command+l, lcommand-l, "%s'", op+1);
     }
     p = strtok(NULL, "\n");
   }
   free(parsed_filter_copy);
-  ret_command += command;        // append to parent's std::string
+  // append to ret_command
+  *pos += snprintf(ret_command + *pos, maxlen - *pos, "%s", command);
   delete [] command;
 }
 
-void Fl_Zenity_Native_File_Chooser_Driver::build_command(std::string& command) {
+void Fl_Zenity_Native_File_Chooser_Driver::build_command(char *command, int maxlen) {
   const char *option;
   switch (_btype) {
     case Fl_Native_File_Chooser::BROWSE_DIRECTORY:
@@ -100,34 +101,33 @@ void Fl_Zenity_Native_File_Chooser_Driver::build_command(std::string& command) {
   }
 
   // Build preset
-  std::string preset;
+  char preset[FL_PATH_MAX * 2] = "";
   if (_preset_file) {
-    std::string quoted_filename = _preset_file; shell_quote(quoted_filename);
-    preset = "--filename=";
-    preset += quoted_filename;
+    char quoted_filename[FL_PATH_MAX];
+    shell_quote(_preset_file, quoted_filename, sizeof(quoted_filename));
+    snprintf(preset, sizeof(preset), "--filename=%s", quoted_filename);
   } else if (_directory) {
     // This doesn't actually seem to do anything, but supply it anyway.
-    std::string quoted_dir = _directory; shell_quote(quoted_dir);
-    preset = "--filename=";
-    preset += quoted_dir;
+    char quoted_dir[FL_PATH_MAX];
+    shell_quote(_directory, quoted_dir, sizeof(quoted_dir));
+    snprintf(preset, sizeof(preset), "--filename=%s", quoted_dir);
   }
 
   // Build command
-  command = "zenity";
+  int pos = 0;
+  pos += snprintf(command + pos, maxlen - pos, "zenity");
   if (_title) {
-    std::string quoted_title = _title; shell_quote(quoted_title);
-    command += " --title ";
-    command += quoted_title;
+    char quoted_title[FL_PATH_MAX];
+    shell_quote(_title, quoted_title, sizeof(quoted_title));
+    pos += snprintf(command + pos, maxlen - pos, " --title %s", quoted_title);
   }
-  command += " ";
-  command += option;
-  if (preset != "") {
-    command += " ";
-    command += preset;
+  pos += snprintf(command + pos, maxlen - pos, " %s", option);
+  if (preset[0]) {
+    pos += snprintf(command + pos, maxlen - pos, " %s", preset);
   }
-  if (_parsedfilt) append_filter(command);
-  command += " 2> /dev/null";   // get rid of stderr
-  //printf("command = %s\n", command.c_str());
+  if (_parsedfilt) append_filter(command, &pos, maxlen);
+  snprintf(command + pos, maxlen - pos, " 2> /dev/null");
+  //printf("command = %s\n", command);
 }
 
 /**
-- 
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