From 5426a708a9010d04cf8baed45ce9909a09088ef6 Mon Sep 17 00:00:00 2001
From: Rob Kendrick <rjek@netsurf-browser.org>
Date: Tue, 30 Jan 2007 19:51:54 +0000
Subject: Generates and use a User-Agent: string based on new
 netsurf_version_major/minor values, and results of uname().

svn path=/trunk/netsurf/; revision=3158
---
 utils/utils.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'utils/utils.c')

diff --git a/utils/utils.c b/utils/utils.c
index b0707b7f2..54a3020ae 100644
--- a/utils/utils.c
+++ b/utils/utils.c
@@ -2,6 +2,7 @@
  * This file is part of NetSurf, http://netsurf-browser.org/
  * Licensed under the GNU General Public License,
  *                http://www.opensource.org/licenses/gpl-license
+ * Copyright 2007 Rob Kendrick <rjek@netsurf-browser.org>
  * Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
  * Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
  * Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
@@ -15,6 +16,8 @@
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <sys/utsname.h>
+#include <sys/time.h>
 #include <regex.h>
 #include <time.h>
 #include "netsurf/utils/config.h"
@@ -23,6 +26,7 @@
 #include "netsurf/utils/messages.h"
 #include "netsurf/utils/utf8.h"
 #include "netsurf/utils/utils.h"
+#include "netsurf/desktop/netsurf.h"
 
 
 char * strip(char * const s)
@@ -254,6 +258,37 @@ unsigned int wallclock(void)
 	return ((tv.tv_sec * 100) + (tv.tv_usec / 10000));
 }
 
+/** Generate a string suitable for use as a user agent in HTTP requests.
+ *
+ * \return heap-allocated result string, or NULL if the allocation failed.
+ */
+#define UA_BUF_SIZE 128
+char *make_useragent(void)
+{
+	struct utsname un;
+	char ua_name[UA_BUF_SIZE];
+	char ua_machine[UA_BUF_SIZE];
+	char *r;
+	
+	snprintf(ua_name, UA_BUF_SIZE, "NetSurf/%d.%d",
+					netsurf_version_major,
+					netsurf_version_minor);
+	
+	if (uname(&un) != 0) {
+		strncpy(ua_machine, "unknown machine", UA_BUF_SIZE);
+	} else {
+		snprintf(ua_machine, UA_BUF_SIZE, "(%s; %s)", un.sysname,
+								un.machine);
+	}
+	
+	if ((r = malloc(strlen(ua_name) + strlen(ua_machine) + 2)) == NULL)
+		return NULL;
+		
+	sprintf(r, "%s %s", ua_name, ua_machine);
+	
+	return r;
+}
+
 #ifdef __FreeBSD__
 
 /**
-- 
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