[PATCH v2 3/7] net: wget: Add interface to issue wget_requests using wget_http_info

[Adriano Cordova <adrianox@gmail.com>]

Declare and define a global default struct wget_http_info
and an interface to issue wget requests providing a custom
struct wget_http_info. This code is common to legacy wget
and lwip wget. The idea is that the command wget should use
the default wget_http_info and other internal u-boot code
can call wget_request with their own wget_http_info struct.

Signed-off-by: Adriano Cordova <adrianox@gmail.com>
---

Changes in v2:
- Instead of having a single global wget_http_info struct, let
  the user of wget (e.g. the efi code) provide an instance of
  wget_http_info to wget with the desired parameters. This lets
  the user cache the wget paramenters in their wget_http_info
  struct as desired (e.g. the content length from a HEAD request
  to a subsequent GET request, see the next efi patch). 
  If none is provided, wget uses default_wget_info.
- Add wget_request to trigger a wget request with a custom
  wget_http_info struct.

 include/net-common.h |  4 ++++
 net/net-common.c     | 14 ++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/net-common.h b/include/net-common.h
index 8985b81c2d..1efb0db9ff 100644
--- a/include/net-common.h
+++ b/include/net-common.h
@@ -554,4 +554,8 @@ struct wget_http_info {
 	char *headers;
 };
 
+extern struct wget_http_info default_wget_info;
+extern struct wget_http_info *wget_info;
+int wget_request(ulong dst_addr, char *uri, struct wget_http_info *info);
+
 #endif /* __NET_COMMON_H__ */
diff --git a/net/net-common.c b/net/net-common.c
index a7f767d5e9..45288fe5f8 100644
--- a/net/net-common.c
+++ b/net/net-common.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <net-common.h>
 
 void copy_filename(char *dst, const char *src, int size)
 {
@@ -11,3 +12,16 @@ void copy_filename(char *dst, const char *src, int size)
 		*dst++ = *src++;
 	*dst = '\0';
 }
+
+struct wget_http_info default_wget_info = {
+	.method = WGET_HTTP_METHOD_GET,
+	.set_bootdev = true,
+};
+
+struct wget_http_info *wget_info;
+
+int wget_request(ulong dst_addr, char *uri, struct wget_http_info *info)
+{
+	wget_info = info ? info : &default_wget_info;
+	return wget_with_dns(dst_addr, uri);
+}
-- 
2.43.0