From: =?utf-8?q?=C5=81ukasz_Ole=C5=9B?= <lukaszoles@gmail.com>
Subject: [PATCH]blktap2: set corret file path for all drivers in
	chain.
Date: Tue, 17 Aug 2010 23:00:22 +0200
Message-ID: <201008172300.22978.lukaszoles@gmail.com>
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In this example: tap-ctl create -a "log:|aio:/mnt/images/debian.img"
driver 'log' gets empty string as a file path and can't create correct unix 
socket in /var/run/tap.

Now every driver gets correct file path.

Signed-off-by: Lukasz Oles <lukaszoles@gmail.com>

diff -r 65db3394ef79 -r 76350d7af7d5 tools/blktap2/drivers/tapdisk-disktype.c
--- a/tools/blktap2/drivers/tapdisk-disktype.c  Tue Aug 17 21:19:05 2010 +0000
+++ b/tools/blktap2/drivers/tapdisk-disktype.c  Tue Aug 17 22:50:18 2010 +0000
@@ -184,7 +184,13 @@
        type = tapdisk_disktype_find(name);

        if (type >= 0)
-               *_path = params + len + 1;
+       {
+               *_path = strrchr(params + len + 2, ':');
+               if (*_path)
+                       *_path = *_path + 1;
+               else
+                       *_path = params + len + 1;
+       }

        return type;
 }