Unify sysinfo plugins and add osx support

This does remove the net* commands from the
Unix version that may return at a later date
with OSX and Windows support.

This commit also makes numerious other changes
such as code cleanup, reformatting, etc.

Closes #829

plugins/sysinfo/osx/backend.m

@@ -0,0 +1,263 @@
+/*
+ * SysInfo - sysinfo plugin for HexChat
+ * Copyright (c) 2015 Patrick Griffis.
+ *
+ * This program is free software you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+ /*
+	* Some snippets based upon Textual's System Profiler plugin.
+	* https://github.com/Codeux-Software/Textual
+	*/
+
+#import <Cocoa/Cocoa.h>
+
+#include <sys/sysctl.h>
+#include <mach/mach.h>
+#include <mach/mach_host.h>
+#include <mach/host_info.h>
+#include <mach/mach_vm.h>
+
+#include <glib.h>
+
+#include "format.h"
+#include "df.h"
+
+static char *
+get_os (void)
+{
+	NSDictionary *systemversion = [NSDictionary dictionaryWithContentsOfFile:@"/System/Library/CoreServices/SystemVersion.plist"];
+	NSString *build = [systemversion objectForKey:@"ProductBuildVersion"];
+	if (!build)
+		return NULL;
+	NSString *version = [systemversion objectForKey:@"ProductUserVisibleVersion"];
+	if (!version)
+	{
+		[build release];
+		return NULL;
+	}
+
+	NSDictionary *profiler = [NSDictionary dictionaryWithContentsOfFile:[@"~/Library/Preferences/com.apple.SystemProfiler.plist" stringByExpandingTildeInPath]];
+	NSDictionary *names = [profiler objectForKey:@"OS Names"];
+	NSString *os_name = nil;
+
+	for (NSString *name in names)
+	{
+		if ([name hasPrefix:build])
+		{
+			os_name = [names objectForKey:name];
+			break;
+		}
+	}
+	[build release];
+
+	if (!os_name)
+	{
+		[version release];
+		return NULL;
+	}
+
+	char *ret = g_strdup_printf ("%s %s", [os_name UTF8String], [version UTF8String]);
+	[version release];
+
+	return ret;
+}
+
+static char *
+get_os_fallback (void)
+{
+	NSProcessInfo *info = [NSProcessInfo processInfo];
+	NSOperatingSystemVersion version = [info operatingSystemVersion];
+
+	return g_strdup_printf ("OS X %ld.%ld.%ld", version.majorVersion, version.minorVersion, version.patchVersion);
+}
+char *
+sysinfo_backend_get_os(void)
+{
+	static char *os_str = NULL;
+	if (!os_str)
+	{
+		os_str = get_os();
+		if (!os_str)
+			os_str = get_os_fallback();
+	}
+	return g_strdup (os_str);
+}
+
+char *
+sysinfo_backend_get_disk(void)
+{
+	gint64 total, free_space;
+
+	if (xs_parse_df (&total, &free_space))
+	{
+		return NULL;
+	}
+
+	return sysinfo_format_disk (total, free_space);
+}
+
+static guint64
+get_free_memory (void)
+{
+	mach_msg_type_number_t infoCount = (sizeof(vm_statistics_data_t) / sizeof(natural_t));
+
+	vm_size_t pagesize;
+	vm_statistics_data_t vm_stat;
+
+	host_page_size(mach_host_self(), &pagesize);
+
+	if (host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vm_stat, &infoCount) == KERN_SUCCESS)
+		return ((vm_stat.inactive_count + vm_stat.free_count) * pagesize);
+
+	return 0;
+}
+
+char *
+sysinfo_backend_get_memory(void)
+{
+	NSProcessInfo *info = [NSProcessInfo processInfo];
+	guint64 totalmem, freemem;
+
+	totalmem = [info physicalMemory];
+
+	if ((freemem = get_free_memory()) == 0)
+		return NULL;
+
+	return sysinfo_format_memory (totalmem, freemem);
+}
+
+char *
+sysinfo_backend_get_cpu(void)
+{
+	guint64 cpu_clock_uint = 0;
+	double cpu_clock;
+	char cpu_string[256];
+	gsize len;
+	gboolean giga = FALSE;
+
+	len = sizeof(cpu_string);
+	if (sysctlbyname ("machdep.cpu.brand_string", cpu_string, &len, NULL, 0) != 0)
+		return NULL;
+	cpu_string[sizeof(cpu_string) - 1] = '\0';
+
+	len = sizeof(cpu_clock_uint);
+	if (sysctlbyname("hw.cpufrequency", &cpu_clock_uint, &len, NULL, 0) < 0)
+		return NULL;
+
+	cpu_clock = cpu_clock_uint / 1000000;
+	if (cpu_clock > 1000)
+	{
+		cpu_clock /= 1000;
+		giga = TRUE;
+	}
+
+	if (giga)
+		return g_strdup_printf ("%s (%.2fGHz)", cpu_string, cpu_clock);
+	else
+		return g_strdup_printf ("%s (%.0fMHz)", cpu_string, cpu_clock);
+}
+
+static char *
+get_gpu(void)
+{
+	CFMutableDictionaryRef pciDevices = IOServiceMatching("IOPCIDevice");
+	io_iterator_t entry_iterator, serviceObject;
+
+	if (IOServiceGetMatchingServices(kIOMasterPortDefault, pciDevices, &entry_iterator) != kIOReturnSuccess)
+		return NULL;
+
+	GString *gpu_list = g_string_new(NULL);
+	while ((serviceObject = IOIteratorNext(entry_iterator)))
+	{
+		CFMutableDictionaryRef serviceDictionary;
+
+		kern_return_t status = IORegistryEntryCreateCFProperties(serviceObject, &serviceDictionary,
+														 kCFAllocatorDefault, kNilOptions);
+
+		if (status != kIOReturnSuccess)
+		{
+			IOObjectRelease(serviceObject);
+			continue;
+		}
+
+		const void *class = CFDictionaryGetValue(serviceDictionary, @"class-code");
+		if (!class || *(guint32*)CFDataGetBytePtr(class) != 0x30000) /* DISPLAY_VGA */
+		{
+			CFRelease(serviceDictionary);
+			continue;
+		}
+
+		const void *model = CFDictionaryGetValue(serviceDictionary, @"model");
+		if (model)
+		{
+			if (CFGetTypeID(model) == CFDataGetTypeID() && CFDataGetLength(model) > 1)
+			{
+				if (gpu_list->len != 0)
+						g_string_append (gpu_list, ", ");
+				g_string_append_len (gpu_list, (const char*)CFDataGetBytePtr(model), CFDataGetLength(model) - 1);
+			}
+		}
+
+		CFRelease(serviceDictionary);
+	}
+
+	if (gpu_list->len == 0)
+	{
+		g_string_free (gpu_list, TRUE);
+		return NULL;
+	}
+
+	/* The string may contain nul-chars we must replace */
+	int i;
+	for (i = 0; i < gpu_list->len; i++)
+	{
+		if (gpu_list->str[i] == '\0')
+			gpu_list->str[i] = ' ';
+	}
+
+	return g_string_free (gpu_list, FALSE);
+}
+
+char *
+sysinfo_backend_get_gpu(void)
+{
+	static char *gpu_str = NULL;
+	if (!gpu_str)
+		gpu_str = get_gpu();
+
+	return g_strdup (gpu_str);
+}
+
+char *
+sysinfo_backend_get_sound(void)
+{
+	return NULL;
+}
+
+char *
+sysinfo_backend_get_uptime(void)
+{
+	NSProcessInfo *info = [NSProcessInfo processInfo];
+	double uptime = [info systemUptime];
+
+	return sysinfo_format_uptime ((gint64)uptime);
+}
+
+char *
+sysinfo_backend_get_network(void)
+{
+	return NULL;
+}