Re: [PATCH spice-gtk v3 6/7] spice-uri: Check if port is in allowed range

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Hi,

On Thu, May 19, 2016 at 06:38:08PM +0200, Pavel Grunt wrote:
> Related: rhbz#1335239
> ---
>  src/spice-uri.c        | 8 ++++++--
>  tests/test-spice-uri.c | 2 ++
>  2 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/src/spice-uri.c b/src/spice-uri.c
> index b483374..6a43461 100644
> --- a/src/spice-uri.c
> +++ b/src/spice-uri.c
> @@ -165,8 +165,8 @@ gboolean spice_uri_parse(SpiceURI *self, const gchar *_uri, GError **error)
>          uri_port = uriv[1];
>  
>      if (uri_port != NULL) {
> -        char *endptr;
> -        guint port = strtoul(uri_port, &endptr, 10);
> +        gchar *endptr;
> +        gint64 port = g_ascii_strtoll(uri_port, &endptr, 10);
>          if (*endptr != '\0') {
>              g_set_error(error, SPICE_CLIENT_ERROR, SPICE_CLIENT_ERROR_FAILED,
>                          "Invalid uri port: %s", uri_port);
> @@ -175,6 +175,10 @@ gboolean spice_uri_parse(SpiceURI *self, const gchar *_uri, GError **error)
>              g_set_error(error, SPICE_CLIENT_ERROR, SPICE_CLIENT_ERROR_FAILED, "Missing uri port");
>              goto end;
>          }
> +        if (port < 0 || port > 65535) {
> +            g_set_error(error, SPICE_CLIENT_ERROR, SPICE_CLIENT_ERROR_FAILED, "Port out of range");
> +            goto end;
> +        }
>          spice_uri_set_port(self, port);
>      }
>  
> diff --git a/tests/test-spice-uri.c b/tests/test-spice-uri.c
> index 42c9aad..c32a343 100644
> --- a/tests/test-spice-uri.c
> +++ b/tests/test-spice-uri.c
> @@ -35,6 +35,8 @@ static void test_spice_uri_ipv4(void)
>          {"http://";, "http", NULL, 3128, NULL, NULL},
>          {"http://127.0.0.1:port";, "http", "127.0.0.1", 3128, NULL, NULL}, /* invalid port */
>          {"http://127.0.0.1:";, "http", "127.0.0.1", 3128, NULL, NULL},
> +        {"http://127.0.0.1:-80";, "http", "127.0.0.1", 3128, NULL, NULL},
> +        {"http://127.0.0.1:8000000";, "http", "127.0.0.1", 3128, NULL, NULL},
>      };
>      const struct test_case valid_test_cases[] = {
>          {"http://user:password@host:80";, "http", "host", 80, "user", "password"},

Looks good. You might want to include test to check the error you have
included.

Acked-by: Victor Toso <victortoso@xxxxxxxxxx>

> -- 
> 2.8.2
> 
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> Spice-devel@xxxxxxxxxxxxxxxxxxxxx
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