Remove Realpath() unlicensed implementation

It is probably not usefull anyway

COPYRIGHT.txt

@@ -74,11 +74,6 @@ Copyright (C) 1991, 1992, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
 
 GNU GPL version 2 or later.
 
-realpath.c
-==========
-
-Portions from GeekGadgets for Amiga. Copyright and license unknown.
-
 recoil.{c,h}
 ============
 

src/io.c

@@ -342,7 +342,7 @@ char * Extract_path(const char *source)
   char * position;
   char * path;
 
-  path = Realpath(source, NULL);
+  path = Realpath(source);
   if (path == NULL)
   {
     GFX2_Log(GFX2_ERROR, "Realpath(\"%s\") failed !\n", source);
@@ -603,7 +603,7 @@ void For_each_file(const char * directory_name, void Callback(const char *, cons
   char * search_string;
   HANDLE h;
 
-  full_filename = Realpath(directory_name, NULL);
+  full_filename = Realpath(directory_name);
   search_string = Filepath_append_to_dir((full_filename != NULL) ? full_filename : directory_name, "*");
   free(full_filename);
   h = FindFirstFileA(search_string, &fd);
@@ -1151,10 +1151,10 @@ char * Calculate_relative_path(const char * ref_path, const char * path)
 
   if (ref_path == NULL || path == NULL)
     return NULL;
-  real_ref_path = Realpath(ref_path, NULL);
+  real_ref_path = Realpath(ref_path);
   if (real_ref_path == NULL)
     real_ref_path = strdup(ref_path);
-  real_path = Realpath(path, NULL);
+  real_path = Realpath(path);
   if (real_path == NULL)
     real_path = strdup(path);
 #if defined(WIN32) || defined(__MINT__)

src/main.c

@@ -536,7 +536,7 @@ int Analyze_command_line(int argc, char * argv[], char * filenames[], char * dir
         }
         else if (File_exists(argv[index]))
         {
-          buffer = Realpath(argv[index], NULL);
+          buffer = Realpath(argv[index]);
           filename = Find_last_separator(buffer);
           if (filename != NULL)
           {

src/readini.c

@@ -998,7 +998,7 @@ int Load_INI(T_Config * conf)
   if (conf->Scripts_directory == NULL)
   {
     // Default when empty:
-    char * path = Realpath(Data_directory, NULL);
+    char * path = Realpath(Data_directory);
     conf->Scripts_directory = Filepath_append_to_dir(path, SCRIPTS_SUBDIRECTORY);
     free(path);
   }

src/realpath.c

@@ -17,115 +17,21 @@
 
 #if defined(__AROS__) || defined(__BEOS__) || defined(__MORPHOS__) || defined(__GP2X__) || defined(__WIZ__) || defined(__CAANOO__) || defined(__amigaos__) || defined(__SWITCH__)
 // These platforms don't have realpath().
-// We use the following implementation, found in:
+char *Realpath(const char *_path)
-// http://amiga.sourceforge.net/amigadevhelp/FUNCTIONS/GeekGadgets/realpath/ex02_realpath.c
+{
-//
+  return strdup(_path);
-// When tested on Debian, this piece of code doesn't resolve
+}
-// symbolic link in the filename itself, only on the directories in
-// the path. So this implementation is limited, it's really better to
-// use realpath() if your platform has it.
-  
-    #if !defined(PATH_MAX)
-        // This is a random default value ...
-        #define PATH_MAX 4096
-    #endif
-  
-    static char *sep(char *path)
-    {
-        char *tmp, c;
-        
-        tmp = strrchr(path, '/');
-        if(tmp) {
-            c = tmp[1];
-            tmp[1] = 0;
-            if (chdir(path)) {
-                return NULL;
-            }
-            tmp[1] = c;
-            
-            return tmp + 1;
-        }
-        return path;
-    }
-
-	// Find the real path of _path by chdir to it and then getcwd.
-	// If resolved_path is null, it is allocated.
-    char *Realpath(const char *_path, char *resolved_path)
-    {
-        #if defined(__AROS__)
-        int fd = open("", O_RDONLY); // GrafX2 is compiled without Unix support
-        #else
-        int fd = open(".", O_RDONLY);
-        #endif
-        int l;
-        char current_dir_path[PATH_MAX];
-        char path[PATH_MAX], lnk[PATH_MAX], *tmp = (char *)"";
-        
-        if (fd < 0) {
-            return NULL;
-        }
-        getcwd(current_dir_path,PATH_MAX);
-        strncpy(path, _path, PATH_MAX);
-        
-        if (chdir(path)) {
-            if (errno == ENOTDIR) {
-                #if defined(__MORPHOS__) || defined(__amigaos__) || defined(__SWITCH__)
-                    // No symbolic links and no readlink()
-                    l = -1;
-                #else
-                    l = readlink(path, lnk, PATH_MAX);
-                #endif
-                if (!(tmp = sep(path))) {
-                    resolved_path = NULL;
-                    goto abort;
-                }
-                if (l < 0) {
-                    if (errno != EINVAL) {
-                        resolved_path = NULL;
-                        goto abort;
-                    }
-                } else {
-                    lnk[l] = 0;
-                    if (!(tmp = sep(lnk))) {
-                        resolved_path = NULL;
-                        goto abort;
-                    }
-                }
-            } else {
-                resolved_path = NULL;
-                goto abort;
-            }
-        }
-        
-        if(resolved_path==NULL) // if we called realpath with null as a 2nd arg
-            resolved_path = (char*) malloc( PATH_MAX );
-                
-        if (!getcwd(resolved_path, PATH_MAX)) {
-            resolved_path = NULL;
-            goto abort;
-        }
-        
-        if(strcmp(resolved_path, "/") && *tmp) {
-            strcat(resolved_path, "/");
-        }
-        
-        strcat(resolved_path, tmp);
-      abort:
-        chdir(current_dir_path);
-        close(fd);
-        return resolved_path;
-    }
             
 #elif defined(__WIN32__) || defined(WIN32)
-// Mingw has a working equivalent. It only has reversed arguments.
+// MSVC / Mingw has a working equivalent. It only has reversed arguments.
-    char *Realpath(const char *_path, char *resolved_path)
+char *Realpath(const char *_path)
-    {
+{
-        return _fullpath(resolved_path,_path,260);
+  return _fullpath(NULL, _path, 260);
-    }
+}
 #else
 
 // Use the stdlib function.
-    char *Realpath(const char *_path, char *resolved_path)
+    char *Realpath(const char *_path)
     {
       /// POSIX 2004 states :
       /// If resolved_name is a null pointer, the behavior of realpath()
@@ -139,14 +45,12 @@
       /// So we assume all platforms now support passing NULL.
       /// If you find a platform where this is not the case,
       /// please add a new implementation with ifdef's.
+      char * resolved_path = NULL;
 #if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED < 1060)
       // realpath() accept NULL as 2nd argument since OSX 10.6
-      if (resolved_path == NULL)
-      {
       resolved_path = GFX2_malloc(PATH_MAX);
       if (resolved_path == NULL)
         return NULL;
-      }
 #endif
       return realpath(_path, resolved_path);
     }

src/realpath.h

@@ -31,6 +31,6 @@
 /// @param _path         Input path
 /// @param resolved_path Output path, allocated by caller
 /// @return              (points to resolved_path)
-char *Realpath(const char *_path, char *resolved_path);
+char *Realpath(const char *_path);
 
 #endif

src/tests/testio.c

@@ -308,7 +308,7 @@ int Test_Realpath(char * errmsg)
 {
   char * path;
 
-  path = Realpath(tmpdir, NULL);
+  path = Realpath(tmpdir);
   if (path == NULL)
   {
     snprintf(errmsg, ERRMSG_LENGTH, "Realpath(\"%s\") returned NULL", tmpdir);