implemented individual file downloads on darkplaces servers

[xonotic/darkplaces.git] / fs.c

diff --git a/fs.c b/fs.c
index 1a35d45d780d1bd63a4e74bc286086561c36e30b..016255ef5d6e1474b14b9040f4cd4b1aa2c5837b 100644 (file)
--- a/fs.c
+++ b/fs.c
@@ -1047,6 +1047,26 @@ const char *FS_FileExtension (const char *in)
 }
 
 
+/*
+============
+FS_FileWithoutPath
+============
+*/
+const char *FS_FileWithoutPath (const char *in)
+{
+       const char *separator, *backslash, *colon;
+
+       separator = strrchr(in, '/');
+       backslash = strrchr(in, '\\');
+       if (!separator || separator < backslash)
+               separator = backslash;
+       colon = strrchr(in, ':');
+       if (!separator || separator < colon)
+               separator = colon;
+       return separator ? separator + 1 : in;
+}
+
+
 /*
 ================
 FS_ClearSearchPath
@@ -2601,3 +2621,57 @@ const char *FS_WhichPack(const char *filename)
        else
                return 0;
 }
+
+/*
+====================
+FS_IsRegisteredQuakePack
+
+Look for a proof of purchase file file in the requested package
+
+If it is found, this file should NOT be downloaded.
+====================
+*/
+qboolean FS_IsRegisteredQuakePack(const char *name)
+{
+       searchpath_t *search;
+       pack_t *pak;
+
+       // search through the path, one element at a time
+       for (search = fs_searchpaths;search;search = search->next)
+       {
+               if (search->pack && !strcasecmp(FS_FileWithoutPath(search->filename), name))
+               {
+                       int (*strcmp_funct) (const char* str1, const char* str2);
+                       int left, right, middle;
+
+                       pak = search->pack;
+                       strcmp_funct = pak->ignorecase ? strcasecmp : strcmp;
+
+                       // Look for the file (binary search)
+                       left = 0;
+                       right = pak->numfiles - 1;
+                       while (left <= right)
+                       {
+                               int diff;
+
+                               middle = (left + right) / 2;
+                               diff = !strcmp_funct (pak->files[middle].name, "gfx/pop.lmp");
+
+                               // Found it
+                               if (!diff)
+                                       return true;
+
+                               // If we're too far in the list
+                               if (diff > 0)
+                                       right = middle - 1;
+                               else
+                                       left = middle + 1;
+                       }
+
+                       // we found the requested pack but it is not registered quake
+                       return false;
+               }
+       }
+
+       return false;
+}