Eina vpath: remove support of ~username vpath on Windows

On Windows, one must be in kernel mode to obtain informations of other users

Reviewed-by: Carsten Haitzler (Rasterman) <rasterman.com>
Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D9339

src/lib/eina/eina_vpath.c

@@ -195,11 +195,11 @@ eina_vpath_shutdown(void)
    return EINA_TRUE;
 }
 
+#ifdef HAVE_GETPWENT
 static Eina_Bool
 _fetch_user_homedir(char **str, const char *name, const char *error)
 {
   *str = NULL;
-#ifdef HAVE_GETPWENT
   struct passwd *pwent;
 
   pwent = getpwnam(name);
@@ -211,12 +211,8 @@ _fetch_user_homedir(char **str, const char *name, const char *error)
   *str = pwent->pw_dir;
 
   return EINA_TRUE;
-#else
-  ERR("User fetching is disabled on this system\nThe string was: %s", error);
-  return EINA_FALSE;
-  (void) name;
-#endif
 }
+#endif
 
 static int
 _eina_vpath_resolve(const char *path, char *str, size_t size)
@@ -232,6 +228,10 @@ _eina_vpath_resolve(const char *path, char *str, size_t size)
           }
         // ~username/ <- homedir of user "username"
         else
+#ifndef HAVE_GETPWENT
+          ERR("User fetching is disabled on this system\nThe string was: %s", path);
+          return 0;
+#else
           {
              const char *p;
              char *name;
@@ -248,6 +248,7 @@ _eina_vpath_resolve(const char *path, char *str, size_t size)
                return 0;
              path = p;
            }
+#endif
          if (home)
            {
               return snprintf(str, size, "%s%s", home, path);

src/lib/eina/eina_vpath.h

@@ -81,12 +81,14 @@
  *
  * @since 1.21
  *
+ * @note on Windows, vpath like ~bob/foo is not supported.
+ *
  */
 typedef const char * Eina_Vpath;
 
 /**
  * Translate a virtual path into a normal path.
- * 
+ *
  * The return string is a string allocated by malloc and should be freed with
  * free() when no longer needed.
  *