fix for crash's in file selector.

- on unix BLI_diskfree was only using 100 chars for the dir name, and 
not checking if the name given was longer, increased to FILE_MAXDIR 
(160) and added a check, return -1 if its too long.

The file selector only allowed 80 chars to be typed into the directory 
entry.

Made the file selector check that the path is less then FILE_MIXDIR, if 
you try and enter a path thats longer it will tell you that the path is 
too long, before it was writing into other memory and crashing.

1 files changed, 7 insertions, 4 deletions

diff --git a/source/blender/blenlib/intern/storage.c b/source/blender/blenlib/intern/storage.c
index a6b91bf489d..1d46679cbf2 100644
--- a/source/blender/blenlib/intern/storage.c
+++ b/source/blender/blenlib/intern/storage.c
@@ -180,12 +180,15 @@ double BLI_diskfree(char *dir)
 	return (double) (freec*bytesps*sectorspc);
 #else
 	struct statfs disk;
-	char name[100],*slash;
-
-
+	char name[FILE_MAXDIR],*slash;
+	int len = strlen(dir);
+	
+	if (len >= FILE_MAXDIR) /* path too long */
+		return -1;
+	
 	strcpy(name,dir);
 
-	if(strlen(name)){
+	if(len){
 		slash = strrchr(name,'/');
 		if (slash) slash[1] = 0;
 	} else strcpy(name,"/");