From: Karel Zak <kzak@redhat.com>
Date: Wed, 20 Jan 2010 22:51:13 +0000 (+0100)
Subject: libblkid: don't probe for GPT and Unixware PT on floppies
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74f2e46df718c7a3ef9e65b785d4022968218bb8;p=util-linux

libblkid: don't probe for GPT and Unixware PT on floppies

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/shlibs/blkid/src/partitions/gpt.c b/shlibs/blkid/src/partitions/gpt.c
index 2ec3f739..2c3a3267 100644
--- a/shlibs/blkid/src/partitions/gpt.c
+++ b/shlibs/blkid/src/partitions/gpt.c
@@ -368,6 +368,7 @@ const struct blkid_idinfo gpt_pt_idinfo =
 {
 	.name		= "gpt",
 	.probefunc	= probe_gpt_pt,
+	.minsz		= 1024 * 1440 + 1,	/* ignore floppies */
 
 	/*
 	 * It would be possible to check for DOS signature (0xAA55), but
diff --git a/shlibs/blkid/src/partitions/partitions.c b/shlibs/blkid/src/partitions/partitions.c
index 82861a5b..154365d7 100644
--- a/shlibs/blkid/src/partitions/partitions.c
+++ b/shlibs/blkid/src/partitions/partitions.c
@@ -505,6 +505,9 @@ static int idinfo_probe(blkid_probe pr, const struct blkid_idinfo *id)
 	int hasmag = 0;
 	int rc = 1;		/* = nothing detected */
 
+	if (id->minsz && id->minsz > pr->size)
+		goto nothing;	/* the device is too small */
+
 	mag = id->magics ? &id->magics[0] : NULL;
 
 	/* try to detect by magic string */
diff --git a/shlibs/blkid/src/partitions/unixware.c b/shlibs/blkid/src/partitions/unixware.c
index 70b6626f..62dba764 100644
--- a/shlibs/blkid/src/partitions/unixware.c
+++ b/shlibs/blkid/src/partitions/unixware.c
@@ -173,6 +173,7 @@ const struct blkid_idinfo unixware_pt_idinfo =
 {
 	.name		= "unixware",
 	.probefunc	= probe_unixware_pt,
+	.minsz		= 1024 * 1440 + 1,		/* ignore floppies */
 	.magics		=
 	{
 		{