[PATCH v6 01/14] net: wget: let wget_with_dns work with dns disabled

[Adriano Cordova <adrianox@gmail.com>]

This was marked as TODO in the code:
 - Enable use of wget_with_dns even if CMD_DNS is disabled if
   the given uri has the ip address for the http server.
 - Move the check for CMD_DNS inside wget_with_dns.
 - Rename wget_with_dns to wget_do_request

Signed-off-by: Adriano Cordova <adrianox@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
---
 include/net-common.h         |  7 +++++--
 lib/efi_loader/efi_bootmgr.c |  2 +-
 net/lwip/wget.c              |  4 ++--
 net/net-common.c             |  2 +-
 net/wget.c                   | 34 ++++++++++++++++++++--------------
 5 files changed, 29 insertions(+), 20 deletions(-)

diff --git a/include/net-common.h b/include/net-common.h
index c5e314b360..8fc1bac47f 100644
--- a/include/net-common.h
+++ b/include/net-common.h
@@ -501,13 +501,16 @@ int dhcp_run(ulong addr, const char *fname, bool autoload);
 int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
 
 /**
- * wget_with_dns() - runs dns host IP address resulution before wget
+ * wget_do_request() - sends a wget request
+ *
+ * Sends a wget request, if DNS resolution is enabled it resolves the
+ * given uri.
  *
  * @dst_addr:	destination address to download the file
  * @uri:	uri string of target file of wget
  * Return:	zero on success, negative if failed
  */
-int wget_with_dns(ulong dst_addr, char *uri);
+int wget_do_request(ulong dst_addr, char *uri);
 /**
  * wget_validate_uri() - varidate the uri
  *
diff --git a/lib/efi_loader/efi_bootmgr.c b/lib/efi_loader/efi_bootmgr.c
index 8c51a6ef2e..c6124c590d 100644
--- a/lib/efi_loader/efi_bootmgr.c
+++ b/lib/efi_loader/efi_bootmgr.c
@@ -479,7 +479,7 @@ static efi_status_t try_load_from_uri_path(struct efi_device_path_uri *uridp,
 	}
 
 	image_addr = hextoul(s, NULL);
-	err = wget_with_dns(image_addr, uridp->uri);
+	err = wget_do_request(image_addr, uridp->uri);
 	if (err < 0) {
 		ret = EFI_INVALID_PARAMETER;
 		goto err;
diff --git a/net/lwip/wget.c b/net/lwip/wget.c
index 83ae8a6d15..2becb02f7b 100644
--- a/net/lwip/wget.c
+++ b/net/lwip/wget.c
@@ -355,7 +355,7 @@ static int wget_loop(struct udevice *udev, ulong dst_addr, char *uri)
 	return -1;
 }
 
-int wget_with_dns(ulong dst_addr, char *uri)
+int wget_do_request(ulong dst_addr, char *uri)
 {
 	eth_set_current();
 
@@ -389,7 +389,7 @@ int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
 		return CMD_RET_FAILURE;
 
 	wget_info = &default_wget_info;
-	if (wget_with_dns(dst_addr, nurl))
+	if (wget_do_request(dst_addr, nurl))
 		return CMD_RET_FAILURE;
 
 	return CMD_RET_SUCCESS;
diff --git a/net/net-common.c b/net/net-common.c
index 45288fe5f8..e01b0da7d7 100644
--- a/net/net-common.c
+++ b/net/net-common.c
@@ -23,5 +23,5 @@ 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);
+	return wget_do_request(dst_addr, uri);
 }
diff --git a/net/wget.c b/net/wget.c
index 5d70b7a82e..f3b43b06b8 100644
--- a/net/wget.c
+++ b/net/wget.c
@@ -535,8 +535,7 @@ void wget_start(void)
 	wget_send(TCP_SYN, 0, 0, 0);
 }
 
-#if (IS_ENABLED(CONFIG_CMD_DNS))
-int wget_with_dns(ulong dst_addr, char *uri)
+int wget_do_request(ulong dst_addr, char *uri)
 {
 	int ret;
 	char *s, *host_name, *file_name, *str_copy;
@@ -555,24 +554,32 @@ int wget_with_dns(ulong dst_addr, char *uri)
 	s = str_copy + strlen("http://");
 	host_name = strsep(&s, "/");
 	if (!s) {
-		log_err("Error: invalied uri, no file path\n");
 		ret = -EINVAL;
 		goto out;
 	}
 	file_name = s;
 
-	/* TODO: If the given uri has ip address for the http server, skip dns */
-	net_dns_resolve = host_name;
-	net_dns_env_var = "httpserverip";
-	if (net_loop(DNS) < 0) {
-		log_err("Error: dns lookup of %s failed, check setup\n", net_dns_resolve);
-		ret = -EINVAL;
-		goto out;
-	}
-	s = env_get("httpserverip");
-	if (!s) {
+	host_name = strsep(&host_name, ":");
+
+	if (string_to_ip(host_name).s_addr) {
+		s = host_name;
+	} else {
+#if IS_ENABLED(CONFIG_CMD_DNS)
+		net_dns_resolve = host_name;
+		net_dns_env_var = "httpserverip";
+		if (net_loop(DNS) < 0) {
+			ret = -EINVAL;
+			goto out;
+		}
+		s = env_get("httpserverip");
+		if (!s) {
+			ret = -EINVAL;
+			goto out;
+		}
+#else
 		ret = -EINVAL;
 		goto out;
+#endif
 	}
 
 	strlcpy(net_boot_file_name, s, sizeof(net_boot_file_name));
@@ -586,7 +593,6 @@ out:
 
 	return ret < 0 ? ret : 0;
 }
-#endif
 
 /**
  * wget_validate_uri() - validate the uri for wget
-- 
2.43.0