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[uri] Special case NULL in churi()

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resolve_uri() doesn't (and probably shouldn't) handle NULL relative_uri.

Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Marty Connor <mdc@etherboot.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Piotr Jaroszyński
2010-04-12 17:37:10 +02:00
committed by Michael Brown
parent 4cb0bfe291
commit 61206c245d
1 changed files with 4 additions and 2 deletions
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4
src/core/cwuri.c
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@@ -38,9 +38,11 @@ struct uri *cwuri = NULL;
* @v uri New working URI, or NULL * @v uri New working URI, or NULL
*/ */
void churi ( struct uri *uri ) { void churi ( struct uri *uri ) {
struct uri *new_uri; struct uri *new_uri = NULL;
if ( uri )
new_uri = resolve_uri ( cwuri, uri ); new_uri = resolve_uri ( cwuri, uri );
uri_put ( cwuri ); uri_put ( cwuri );
cwuri = new_uri; cwuri = new_uri;
} }