[PATCH] lib/url: Include port in pb_url_to_string()

[Samuel Mendoza-Jonas]

On Thu, 2019-01-17 at 13:45 +1100, Samuel Mendoza-Jonas wrote:
> And include a pxe-parser test which uses a port in the path prefix to
> exercise this. This could cause PXE discovery failures if parameters
> such as pathprefix included a port in the URL.
> 
> Signed-off-by: Samuel Mendoza-Jonas <sam at mendozajonas.com>

Merged as 28d0d703.

> ---
>  lib/url/url.c                          | 15 +++++++---
>  test/parser/Makefile.am                |  1 +
>  test/parser/test-pxe-pathprefix-port.c | 40 ++++++++++++++++++++++++++
>  3 files changed, 52 insertions(+), 4 deletions(-)
>  create mode 100644 test/parser/test-pxe-pathprefix-port.c
> 
> diff --git a/lib/url/url.c b/lib/url/url.c
> index 44e9ac40..b74018dd 100644
> --- a/lib/url/url.c
> +++ b/lib/url/url.c
> @@ -265,14 +265,21 @@ int addr_scheme(const char *address)
>  char *pb_url_to_string(struct pb_url *url)
>  {
>  	const struct pb_scheme_info *scheme = pb_url_scheme_info(url->scheme);
> +	char *str, *port;
>  	assert(scheme);
>  
> +	port = url->port ? talloc_asprintf(url, ":%s", url->port) : NULL;
> +
>  	if (scheme->has_host && addr_scheme(url->host) == AF_INET6)
> -		return talloc_asprintf(url, "%s://[%s]%s", scheme->str,
> -				url->host, url->path);
> +		str = talloc_asprintf(url, "%s://[%s]%s%s", scheme->str,
> +				url->host, port ?: "", url->path);
>  	else
> -		return talloc_asprintf(url, "%s://%s%s", scheme->str,
> -				scheme->has_host ? url->host : "", url->path);
> +		str = talloc_asprintf(url, "%s://%s%s%s", scheme->str,
> +				scheme->has_host ? url->host : "",
> +				port ?: "", url->path);
> +
> +	talloc_free(port);
> +	return str;
>  }
>  
>  static void pb_url_update_full(struct pb_url *url)
> diff --git a/test/parser/Makefile.am b/test/parser/Makefile.am
> index 483add90..f9083bd6 100644
> --- a/test/parser/Makefile.am
> +++ b/test/parser/Makefile.am
> @@ -75,6 +75,7 @@ parser_TESTS = \
>  	test/parser/test-pxe-non-url-pathprefix-with-conf \
>  	test/parser/test-pxe-pathprefix-discover \
>  	test/parser/test-pxe-pathprefix-discover-mac \
> +	test/parser/test-pxe-pathprefix-port \
>  	test/parser/test-pxe-path-resolve-relative \
>  	test/parser/test-pxe-path-resolve-absolute \
>  	test/parser/test-pxe-discover-bootfile-root \
> diff --git a/test/parser/test-pxe-pathprefix-port.c b/test/parser/test-pxe-pathprefix-port.c
> new file mode 100644
> index 00000000..c7d018e0
> --- /dev/null
> +++ b/test/parser/test-pxe-pathprefix-port.c
> @@ -0,0 +1,40 @@
> +
> +#include "parser-test.h"
> +
> +#if 0 /* PARSER_EMBEDDED_CONFIG */
> +default linux
> +
> +label linux
> +kernel ./kernel
> +append command line
> +initrd /initrd
> +#endif
> +
> +void run_test(struct parser_test *test)
> +{
> +	struct discover_boot_option *opt;
> +	struct discover_context *ctx;
> +
> +	test_read_conf_embedded_url(test,
> +			"http://host:8080/path/to/pxelinux.cfg/default");
> +
> +	test_set_event_source(test);
> +	test_set_event_param(test->ctx->event, "ip", "192.168.0.1");
> +	test_set_event_param(test->ctx->event, "pxepathprefix",
> +			"http://host:8080/path/to/");
> +
> +	test_run_parser(test, "pxe");
> +
> +	ctx = test->ctx;
> +
> +	check_boot_option_count(ctx, 1);
> +	opt = get_boot_option(ctx, 0);
> +
> +	check_name(opt, "linux");
> +	check_args(opt, "command line");
> +
> +	check_resolved_url_resource(opt->boot_image,
> +			"http://host:8080/path/to/./kernel");
> +	check_resolved_url_resource(opt->initrd,
> +			"http://host:8080/path/to/initrd");
> +}