Show IP of the document in the status bar.

config options:
ui.show_ip (0/1) default 0
status.showip-text - colors

src/bfu/leds.c

@@ -18,6 +18,8 @@
 
 #include "bfu/leds.h"
 #include "config/options.h"
+#include "document/document.h"
+#include "document/view.h"
 #include "intl/gettext/libintl.h"
 #include "main/module.h"
 #include "main/timer.h"
@@ -63,6 +65,8 @@ enum led_option {
 	LEDS_CLOCK_FORMAT,
 	LEDS_CLOCK_ALIAS,
 
+	LEDS_SHOW_IP_ENABLE,
+
 	LEDS_PANEL_TREE,
 	LEDS_PANEL_ENABLE,
 
@@ -82,9 +86,14 @@ static struct option_info led_options[] = {
 		N_("Format string for the digital clock. See the strftime(3) "
 		"manpage for details.")),
 
+
 	/* Compatibility alias. Added: 2004-04-22, 0.9.CVS. */
 	INIT_OPT_ALIAS("ui.timer", "clock", 0, "ui.clock"),
 
+	INIT_OPT_BOOL("ui", N_("Show IP"),
+		"show_ip", 0, 0,
+		N_("Whether to display IP of the document in the status bar.")),
+
 
 	INIT_OPT_TREE("ui", N_("LEDs"),
 		"leds", 0,
@@ -102,6 +111,7 @@ static struct option_info led_options[] = {
 #define get_leds_clock_enable()		get_opt_leds(LEDS_CLOCK_ENABLE).number
 #define get_leds_clock_format()		get_opt_leds(LEDS_CLOCK_FORMAT).string
 #define get_leds_panel_enable()		get_opt_leds(LEDS_PANEL_ENABLE).number
+#define get_leds_show_ip_enable()	get_opt_leds(LEDS_SHOW_IP_ENABLE).number
 
 void
 init_leds(struct module *module)
@@ -167,6 +177,25 @@ draw_timer(struct terminal *term, int xpos, int ypos, struct color_pair *color)
 	return length;
 }
 
+static int
+draw_show_ip(struct session *ses, int xpos, int ypos, struct color_pair *color)
+{
+
+	if (ses->doc_view && ses->doc_view->document && ses->doc_view->document->ip) {
+		struct terminal *term = ses->tab->term;
+		unsigned char *s = ses->doc_view->document->ip;
+		int length = strlen(s);
+		int i;
+
+		for (i = length - 1; i >= 0; i--)
+			draw_char(term, xpos - (length - i), ypos, s[i], 0, color);
+
+		return length;
+	}
+	return 0;
+}
+
+
 #ifdef HAVE_STRFTIME
 static int
 draw_clock(struct terminal *term, int xpos, int ypos, struct color_pair *color)
@@ -233,6 +262,12 @@ draw_leds(struct session *ses)
 	}
 #endif
 
+	if (get_leds_show_ip_enable()) {
+		struct color_pair *color = get_bfu_color(term, "status.showip-text");
+
+		if (color) term->leds_length += draw_show_ip(ses, xpos - term->leds_length, ypos, color);
+	}
+
 	/* We must shift the whole thing by one char to left, because we don't
 	 * draft the char in the right-down corner :(. */
 

src/config/options.inc

@@ -1199,10 +1199,15 @@ static struct option_info config_options_info[] = {
 		"status",
 		N_("Status bar colors.")),
 
+	INIT_OPT_COLORS(".status", N_("Status bar show ip"),
+		"showip-text", "black", "white", "black", "white",
+		N_("Status bar show ip text colors.")),
+
 	INIT_OPT_COLORS(".status", N_("Generic status bar"),
 		"status-bar", "black", "white", "black", "white",
 		N_("Generic status bar colors.")),
 
+
 	INIT_OPT_COLORS(".status", N_("Status bar text"),
 		"status-text", "black", "white", "black", "white",
 		N_("Status bar text colors.")),

src/document/document.c

@@ -10,6 +10,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+
 #include "elinks.h"
 
 #include "cache/cache.h"
@@ -24,6 +28,7 @@
 #include "document/refresh.h"
 #include "main/module.h"
 #include "main/object.h"
+#include "network/dns.h"
 #include "protocol/uri.h"
 #include "terminal/draw.h"
 #include "util/color.h"
@@ -35,6 +40,46 @@
 
 static INIT_LIST_OF(struct document, format_cache);
 
+/* DNS callback. */
+static void
+found_dns(void *data, struct sockaddr_storage *addr, int addrlen)
+{
+#ifdef HAVE_INET_NTOP
+	unsigned char buf[64];
+	const unsigned char *res;
+	struct sockaddr *s;
+	unsigned char **ip = (unsigned char **)data;
+	void *src;
+
+	if (!ip || !addr) return;
+	s = (struct sockaddr *)addr;
+	if (s->sa_family == AF_INET6) {
+		src = &(((struct sockaddr_in6 *)s)->sin6_addr.s6_addr);
+	} else {
+		src = &(((struct sockaddr_in *)s)->sin_addr.s_addr);
+	}
+	res = inet_ntop(s->sa_family, src, buf, 64);
+	if (res) {
+		*ip = stracpy(res);
+	}
+#endif
+}
+
+static void
+get_ip(struct document *document)
+{
+#ifdef HAVE_INET_NTOP
+	struct uri *uri = document->uri;
+	char tmp;
+
+	if (!uri || !uri->host || !uri->hostlen) return;
+	tmp = uri->host[uri->hostlen];
+	uri->host[uri->hostlen] = 0;
+	find_host(uri->host, &document->querydns, found_dns, &document->ip, 0);
+	uri->host[uri->hostlen] = tmp;
+#endif
+}
+
 struct document *
 init_document(struct cache_entry *cached, struct document_options *options)
 {
@@ -44,6 +89,8 @@ init_document(struct cache_entry *cached, struct document_options *options)
 
 	document->uri = get_uri_reference(cached->uri);
 
+	get_ip(document);
+
 	object_lock(cached);
 	document->cache_id = cached->cache_id;
 	document->cached = cached;
@@ -121,6 +168,8 @@ done_document(struct document *document)
 	object_unlock(document->cached);
 
 	if (document->uri) done_uri(document->uri);
+	if (document->querydns) kill_dns_request(&document->querydns);
+	mem_free_if(document->ip);
 	mem_free_if(document->title);
 	if (document->frame_desc) free_frameset_desc(document->frame_desc);
 	if (document->refresh) done_document_refresh(document->refresh);

src/document/document.h

@@ -208,6 +208,9 @@ struct document {
 
 	struct uri *uri;
 
+	/* for obtaining IP */
+	void *querydns;
+	unsigned char *ip;
 	/** The title of the document.  The charset of this string is
 	 * document.options.cp.  */
 	unsigned char *title;