Fix handling for directories with extended characters

* Closes #3

Author: VitaSmith

cdecrypt.c

@@ -2,7 +2,7 @@
   cdecrypt - Decrypt Wii U NUS content files
 
   Copyright © 2013-2015 crediar <https://code.google.com/p/cdecrypt/>
-  Copyright © 2020 VitaSmith <https://github.com/VitaSmith/cdecrypt>
+  Copyright © 2020-2021 VitaSmith <https://github.com/VitaSmith/cdecrypt>
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -366,13 +366,13 @@ int main_utf8(int argc, char** argv)
 
     if (argc < 2) {
         printf("%s %s - Wii U NUS content file decrypter\n"
-            "Copyright (c) 2020 VitaSmith, Copyright (c) 2013-2015 crediar\n"
+            "Copyright (c) 2020-2021 VitaSmith, Copyright (c) 2013-2015 crediar\n"
             "Visit https://github.com/VitaSmith/cdecrypt for official source and downloads.\n\n"
             "Usage: %s <file or directory>\n\n"
             "This program is free software; you can redistribute it and/or modify it under\n"
             "the terms of the GNU General Public License as published by the Free Software\n"
             "Foundation; either version 3 of the License or any later version.\n",
-            appname(argv[0]), APP_VERSION_STR, appname(argv[0]));
+            _appname(argv[0]), APP_VERSION_STR, _appname(argv[0]));
         return EXIT_SUCCESS;
     }
 

utf8.h

@@ -111,6 +111,15 @@ static __inline int stat64_utf8(const char* path, struct stat64* buffer)
     return r;
 }
 
+static __inline BOOL CreateDirectory_utf8(const char* path, LPSECURITY_ATTRIBUTES attrs)
+{
+    BOOL r;
+    wchar_t* path16 = utf8_to_utf16(path);
+    r = CreateDirectoryW(path16, attrs);
+    free(path16);
+    return r;
+}
+
 #define CALL_MAIN int wmain(int argc, wchar_t** argv16) {   \
     SetConsoleOutputCP(CP_UTF8);                            \
     char** argv = calloc(argc, sizeof(char*));              \

util.c

@@ -1,6 +1,6 @@
 /*
   Common code for Gust (Koei/Tecmo) PC games tools
-  Copyright © 2019-2020 VitaSmith
+  Copyright © 2019-2021 VitaSmith
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -28,12 +28,18 @@ bool create_path(char* path)
 {
     bool result = true;
     struct stat64_t st;
+#if defined(_WIN32)
+    // Ignore Windows drive names
+    if ((strlen(path) == 2) && (path[1] == ':'))
+        return true;
+#endif
     if (stat64_utf8(path, &st) != 0) {
         // Directory doesn't exist, create it
         size_t pos = 0;
         for (size_t n = strlen(path); n > 0; n--) {
             if (path[n] == PATH_SEP) {
-                pos = n;
+                while ((n > 0) && (path[--n] == PATH_SEP));
+                pos = n + 1;
                 break;
             }
         }
@@ -61,6 +67,71 @@ bool create_path(char* path)
     return result;
 }
 
+// dirname/basename, that *PRESERVE* the string parameter.
+// Note that these calls are not concurrent, meaning that you MUST be done
+// using the returned string from a previous call before invoking again.
+#if defined(_WIN32)
+char* _basename_win32(const char* path, bool remove_extension)
+{
+    static char basename[128];
+    static char ext[64];
+    ext[0] = 0;
+    _splitpath_s(path, NULL, 0, NULL, 0, basename, sizeof(basename), ext, sizeof(ext));
+    if ((ext[0] != 0) && !remove_extension)
+        strncat(basename, ext, sizeof(basename) - strlen(basename));
+    return basename;
+}
+
+// This call should behave pretty similar to UNIX' dirname
+char* _dirname_win32(const char* path)
+{
+    static char dir[PATH_MAX];
+    static char drive[4];
+    int found_sep = 0;
+    memset(drive, 0, sizeof(drive));
+    _splitpath_s(path, drive, sizeof(drive), dir, sizeof(dir) - 3, NULL, 0, NULL, 0);
+    // Only deal with drives that are one letter
+    drive[2] = 0;
+    drive[3] = 0;
+    if (drive[1] != ':')
+        drive[0] = 0;
+    // Removing trailing path separators
+    for (int32_t n = (int32_t)strlen(dir) - 1; (n > 0) && ((dir[n] == '/') || (dir[n] == '\\')); n--) {
+        dir[n] = 0;
+        found_sep++;
+    }
+    if (dir[0] == 0) {
+        if (drive[0] == 0)
+            return found_sep ? "\\" : ".";
+        drive[2] = '\\';
+        return drive;
+    }
+    if (drive[0] != 0) {
+        // Add the drive
+        memmove(&dir[2], dir, strlen(dir) + 1);
+        memcpy(dir, drive, strlen(drive));
+        dir[2] = '\\';
+    }
+    return dir;
+}
+#else
+char* _basename_unix(const char* path)
+{
+    static char path_copy[PATH_MAX];
+    strncpy(path_copy, path, sizeof(path_copy));
+    path_copy[PATH_MAX - 1] = 0;
+    return basename(path_copy);
+}
+
+char* _dirname_unix(const char* path)
+{
+    static char path_copy[PATH_MAX];
+    strncpy(path_copy, path, sizeof(path_copy));
+    path_copy[PATH_MAX - 1] = 0;
+    return dirname(path_copy);
+}
+#endif
+
 bool is_file(const char* path)
 {
     struct stat64_t st;
@@ -76,7 +147,7 @@ bool is_directory(const char* path)
 char* change_extension(const char* path, const char* extension)
 {
     static char new_path[PATH_MAX];
-    strncpy(new_path, basename((char*)path), sizeof(new_path) - 1);
+    strncpy(new_path, _basename((char*)path), sizeof(new_path) - 1);
     for (size_t i = 0; i < sizeof(new_path); i++) {
         if (new_path[i] == '.')
             new_path[i] = 0;

util.h

@@ -1,6 +1,6 @@
 /*
   Common code for Gust (Koei/Tecmo) PC games tools
-  Copyright © 2019-2020 VitaSmith
+  Copyright © 2019-2021 VitaSmith
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@
 #include <crtdbg.h>
 #endif
 
-#if defined(__APPLE__)
+#if !defined(_WIN32)
 #include <libgen.h>
 #endif
 #include <stdbool.h>
@@ -50,7 +50,7 @@
 #if !defined(S_ISREG)
 #define S_ISREG(ST_MODE) (((ST_MODE) & _S_IFMT) == _S_IFREG)
 #endif
-#define CREATE_DIR(path) CreateDirectoryA(path, NULL)
+#define CREATE_DIR(path) CreateDirectory_utf8(path, NULL)
 #define PATH_SEP '\\'
 #else
 #if defined(__APPLE__)
@@ -85,20 +85,17 @@
 #endif
 
 #if defined(_WIN32)
-static __inline char* _basename(const char* path, bool remove_extension)
-{
-    static char basename[128];
-    static char ext[64];
-    ext[0] = 0;
-    _splitpath_s(path, NULL, 0, NULL, 0, basename, sizeof(basename), ext, sizeof(ext));
-    if ((ext[0] != 0) && !remove_extension)
-        strncat(basename, ext, sizeof(basename) - strlen(basename));
-    return basename;
-}
-#define basename(path) _basename(path, false)
-#define appname(path) _basename(path, true)
+char* _basename_win32(const char* path, bool remove_extension);
+char* _dirname_win32(const char* path);
+#define _basename(path) _basename_win32(path, false)
+#define _appname(path) _basename_win32(path, true)
+#define _dirname(path) _dirname_win32(path)
 #else
-#define appname(path) basename(path)
+char* _basename_unix(const char* path);
+char* _dirname_unix(const char* path);
+#define _basename(path) _basename_unix(path)
+#define _appname(path) _basename_unix(path)
+#define _dirname(path) _dirname_unix(path)
 #endif
 
 #if defined (_MSC_VER)