Version v0.2.29 - implemented enhanced filename input with directory/filename separation

otp.c

@@ -99,6 +99,9 @@ int handle_text_encrypt(void);
 int handle_file_encrypt(void);
 int handle_smart_decrypt(void);
 
+// Enhanced input functions
+int get_filename_with_default(const char* prompt, const char* default_path, char* result, size_t result_size);
+
 void print_usage(const char* program_name);
 
 int main(int argc, char* argv[]) {
@@ -110,7 +113,7 @@ int main(int argc, char* argv[]) {
 }
 
 int interactive_mode(void) {
-    printf("=== OTP Cipher %s ===\n\n", get_version());
+    printf("\n\n\n\n=== OTP Cipher %s ===\n\n", get_version());
     
     while (1) {
         show_main_menu();
@@ -2297,6 +2300,59 @@ void simple_entropy_mix(unsigned char* urandom_buffer, size_t buffer_size,
     }
 }
 
+// Enhanced input function for filename with directory separation
+int get_filename_with_default(const char* prompt, const char* default_path, char* result, size_t result_size) {
+    // Find the last directory separator
+    char* last_slash = strrchr(default_path, '/');
+    char directory[1024] = "";
+    char filename[512] = "";
+    
+    if (last_slash) {
+        // Extract directory path
+        size_t dir_len = last_slash - default_path + 1; // Include the trailing slash
+        if (dir_len < sizeof(directory)) {
+            strncpy(directory, default_path, dir_len);
+            directory[dir_len] = '\0';
+        }
+        
+        // Extract filename
+        strncpy(filename, last_slash + 1, sizeof(filename) - 1);
+        filename[sizeof(filename) - 1] = '\0';
+    } else {
+        // No directory separator, treat as filename only
+        strncpy(filename, default_path, sizeof(filename) - 1);
+        filename[sizeof(filename) - 1] = '\0';
+    }
+    
+    // Display the enhanced prompt with directory and filename separated by colon
+    printf("\n%s\n%s: %s", prompt, directory, filename);
+    fflush(stdout);
+    
+    char input_buffer[512];
+    if (!fgets(input_buffer, sizeof(input_buffer), stdin)) {
+        return 1; // Error reading input
+    }
+    
+    // Remove newline
+    input_buffer[strcspn(input_buffer, "\n")] = 0;
+    
+    // If user just pressed Enter, use the default filename
+    if (strlen(input_buffer) == 0) {
+        strncpy(result, default_path, result_size - 1);
+        result[result_size - 1] = '\0';
+    } else {
+        // Combine directory with user input
+        if (strlen(directory) > 0) {
+            snprintf(result, result_size, "%s%s", directory, input_buffer);
+        } else {
+            strncpy(result, input_buffer, result_size - 1);
+            result[result_size - 1] = '\0';
+        }
+    }
+    
+    return 0; // Success
+}
+
 // Editor and file manager implementations
 
 char* get_preferred_editor(void) {
@@ -2560,24 +2616,21 @@ int handle_file_encrypt(void) {
     int ascii_armor = (atoi(format_input) == 2) ? 1 : 0;
     
     // Generate default output filename
-    char default_output[512];
+    char default_output[1024]; // Increased buffer size to prevent truncation warnings
     if (ascii_armor) {
         snprintf(default_output, sizeof(default_output), "%s.otp.asc", input_file);
     } else {
         snprintf(default_output, sizeof(default_output), "%s.otp", input_file);
     }
     
-    // Ask for output filename with pre-filled default
-    printf("\nOutput filename [%s]: ", default_output);
+    // Use enhanced input function for output filename
     char output_file[512];
-    if (!fgets(output_file, sizeof(output_file), stdin)) {
+    if (get_filename_with_default("Output filename:", default_output, output_file, sizeof(output_file)) != 0) {
         printf("Error: Failed to read input\n");
         return 1;
     }
-    output_file[strcspn(output_file, "\n")] = 0;
     
-    // Use default if user just pressed Enter
-    const char* output_filename = (strlen(output_file) > 0) ? output_file : default_output;
+    const char* output_filename = output_file;
     
     return encrypt_file(pad_input, input_file, output_filename, ascii_armor);
 }

test.txt

@@ -1 +0,0 @@
-This is a test file for OTP encryption.

test_ascii

@@ -1 +0,0 @@
-This is a test file for OTP encryption.

test_ascii.otp.asc

@@ -1,7 +0,0 @@
------BEGIN OTP MESSAGE-----
-Version: v0.2.15
-Pad-ChkSum: 0c8e19fde996e683fdbd348d1052eec168ffe6f67a88bb1278d0d02e9341b87b
-Pad-Offset: 210
-
-mMIm7iVtUO6NbXbskMxtydI/A16UXEQUGTcIya/8Dja6PB3EC0MLdw==
------END OTP MESSAGE-----