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block: Do not strcmp() with NULL uri->scheme

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uri_parse(...)->scheme may be NULL. In fact, probably every field may be
NULL, and the callers do test this for all of the other fields but not
for scheme (except for block/gluster.c; block/vxhs.c does not access
that field at all).

We can easily fix this by using g_strcmp0() instead of strcmp().

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170613205726.13544-1-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2017-06-13 22:57:26 +02:00
parent 05cc758a3d
commit f69165a8fe
4 changed files with 8 additions and 8 deletions
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2
block/ssh.c
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@ -204,7 +204,7 @@ static int parse_uri(const char *filename, QDict *options, Error **errp)
return -EINVAL;
}
if (strcmp(uri->scheme, "ssh") != 0) {
if (g_strcmp0(uri->scheme, "ssh") != 0) {
error_setg(errp, "URI scheme must be 'ssh'");
goto err;
}