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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/mac/mac_util.h"
#import <Cocoa/Cocoa.h>
#import <IOKit/IOKitLib.h>
#include <errno.h>
#include <string.h>
#include <sys/utsname.h>
#include <sys/xattr.h>
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/mac/bundle_locations.h"
#include "base/mac/foundation_util.h"
#include "base/mac/mac_logging.h"
#include "base/mac/scoped_cftyperef.h"
#include "base/mac/scoped_ioobject.h"
#include "base/mac/scoped_nsobject.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "base/strings/sys_string_conversions.h"
namespace base {
namespace mac {
// Replicate specific 10.7 SDK declarations for building with prior SDKs.
#if !defined(MAC_OS_X_VERSION_10_7) || \
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
enum {
NSApplicationPresentationFullScreen = 1 << 10
};
#endif // MAC_OS_X_VERSION_10_7
namespace {
// The current count of outstanding requests for full screen mode from browser
// windows, plugins, etc.
int g_full_screen_requests[kNumFullScreenModes] = { 0 };
// Sets the appropriate application presentation option based on the current
// full screen requests. Since only one presentation option can be active at a
// given time, full screen requests are ordered by priority. If there are no
// outstanding full screen requests, reverts to normal mode. If the correct
// presentation option is already set, does nothing.
void SetUIMode() {
NSApplicationPresentationOptions current_options =
[NSApp presentationOptions];
// Determine which mode should be active, based on which requests are
// currently outstanding. More permissive requests take precedence. For
// example, plugins request |kFullScreenModeAutoHideAll|, while browser
// windows request |kFullScreenModeHideDock| when the fullscreen overlay is
// down. Precedence goes to plugins in this case, so AutoHideAll wins over
// HideDock.
NSApplicationPresentationOptions desired_options =
NSApplicationPresentationDefault;
if (g_full_screen_requests[kFullScreenModeAutoHideAll] > 0) {
desired_options = NSApplicationPresentationHideDock |
NSApplicationPresentationAutoHideMenuBar;
} else if (g_full_screen_requests[kFullScreenModeHideDock] > 0) {
desired_options = NSApplicationPresentationHideDock;
} else if (g_full_screen_requests[kFullScreenModeHideAll] > 0) {
desired_options = NSApplicationPresentationHideDock |
NSApplicationPresentationHideMenuBar;
}
// Mac OS X bug: if the window is fullscreened (Lion-style) and
// NSApplicationPresentationDefault is requested, the result is that the menu
// bar doesn't auto-hide. rdar://13576498 http://www.openradar.me/13576498
//
// As a workaround, in that case, explicitly set the presentation options to
// the ones that are set by the system as it fullscreens a window.
if (desired_options == NSApplicationPresentationDefault &&
current_options & NSApplicationPresentationFullScreen) {
desired_options |= NSApplicationPresentationFullScreen |
NSApplicationPresentationAutoHideMenuBar |
NSApplicationPresentationAutoHideDock;
}
if (current_options != desired_options)
[NSApp setPresentationOptions:desired_options];
}
// Looks into Shared File Lists corresponding to Login Items for the item
// representing the current application. If such an item is found, returns a
// retained reference to it. Caller is responsible for releasing the reference.
LSSharedFileListItemRef GetLoginItemForApp() {
ScopedCFTypeRef<LSSharedFileListRef> login_items(LSSharedFileListCreate(
NULL, kLSSharedFileListSessionLoginItems, NULL));
if (!login_items.get()) {
DLOG(ERROR) << "Couldn't get a Login Items list.";
return NULL;
}
base::scoped_nsobject<NSArray> login_items_array(
CFToNSCast(LSSharedFileListCopySnapshot(login_items, NULL)));
NSURL* url = [NSURL fileURLWithPath:[base::mac::MainBundle() bundlePath]];
for(NSUInteger i = 0; i < [login_items_array count]; ++i) {
LSSharedFileListItemRef item = reinterpret_cast<LSSharedFileListItemRef>(
[login_items_array objectAtIndex:i]);
CFURLRef item_url_ref = NULL;
if (LSSharedFileListItemResolve(item, 0, &item_url_ref, NULL) == noErr) {
ScopedCFTypeRef<CFURLRef> item_url(item_url_ref);
if (CFEqual(item_url, url)) {
CFRetain(item);
return item;
}
}
}
return NULL;
}
bool IsHiddenLoginItem(LSSharedFileListItemRef item) {
ScopedCFTypeRef<CFBooleanRef> hidden(reinterpret_cast<CFBooleanRef>(
LSSharedFileListItemCopyProperty(item,
reinterpret_cast<CFStringRef>(kLSSharedFileListLoginItemHidden))));
return hidden && hidden == kCFBooleanTrue;
}
} // namespace
std::string PathFromFSRef(const FSRef& ref) {
ScopedCFTypeRef<CFURLRef> url(
CFURLCreateFromFSRef(kCFAllocatorDefault, &ref));
NSString *path_string = [(NSURL *)url.get() path];
return [path_string fileSystemRepresentation];
}
bool FSRefFromPath(const std::string& path, FSRef* ref) {
OSStatus status = FSPathMakeRef((const UInt8*)path.c_str(),
ref, nil);
return status == noErr;
}
CGColorSpaceRef GetGenericRGBColorSpace() {
// Leaked. That's OK, it's scoped to the lifetime of the application.
static CGColorSpaceRef g_color_space_generic_rgb(
CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB));
DLOG_IF(ERROR, !g_color_space_generic_rgb) <<
"Couldn't get the generic RGB color space";
return g_color_space_generic_rgb;
}
CGColorSpaceRef GetSRGBColorSpace() {
// Leaked. That's OK, it's scoped to the lifetime of the application.
static CGColorSpaceRef g_color_space_sRGB =
CGColorSpaceCreateWithName(kCGColorSpaceSRGB);
DLOG_IF(ERROR, !g_color_space_sRGB) << "Couldn't get the sRGB color space";
return g_color_space_sRGB;
}
CGColorSpaceRef GetSystemColorSpace() {
// Leaked. That's OK, it's scoped to the lifetime of the application.
// Try to get the main display's color space.
static CGColorSpaceRef g_system_color_space =
CGDisplayCopyColorSpace(CGMainDisplayID());
if (!g_system_color_space) {
// Use a generic RGB color space. This is better than nothing.
g_system_color_space = CGColorSpaceCreateDeviceRGB();
if (g_system_color_space) {
DLOG(WARNING) <<
"Couldn't get the main display's color space, using generic";
} else {
DLOG(ERROR) << "Couldn't get any color space";
}
}
return g_system_color_space;
}
// Add a request for full screen mode. Must be called on the main thread.
void RequestFullScreen(FullScreenMode mode) {
DCHECK_LT(mode, kNumFullScreenModes);
if (mode >= kNumFullScreenModes)
return;
DCHECK_GE(g_full_screen_requests[mode], 0);
if (mode < 0)
return;
g_full_screen_requests[mode] = std::max(g_full_screen_requests[mode] + 1, 1);
SetUIMode();
}
// Release a request for full screen mode. Must be called on the main thread.
void ReleaseFullScreen(FullScreenMode mode) {
DCHECK_LT(mode, kNumFullScreenModes);
if (mode >= kNumFullScreenModes)
return;
DCHECK_GE(g_full_screen_requests[mode], 0);
if (mode < 0)
return;
g_full_screen_requests[mode] = std::max(g_full_screen_requests[mode] - 1, 0);
SetUIMode();
}
// Switches full screen modes. Releases a request for |from_mode| and adds a
// new request for |to_mode|. Must be called on the main thread.
void SwitchFullScreenModes(FullScreenMode from_mode, FullScreenMode to_mode) {
DCHECK_LT(from_mode, kNumFullScreenModes);
DCHECK_LT(to_mode, kNumFullScreenModes);
if (from_mode >= kNumFullScreenModes || to_mode >= kNumFullScreenModes)
return;
DCHECK_GT(g_full_screen_requests[from_mode], 0);
DCHECK_GE(g_full_screen_requests[to_mode], 0);
g_full_screen_requests[from_mode] =
std::max(g_full_screen_requests[from_mode] - 1, 0);
g_full_screen_requests[to_mode] =
std::max(g_full_screen_requests[to_mode] + 1, 1);
SetUIMode();
}
void SetCursorVisibility(bool visible) {
if (visible)
[NSCursor unhide];
else
[NSCursor hide];
}
bool ShouldWindowsMiniaturizeOnDoubleClick() {
// We use an undocumented method in Cocoa; if it doesn't exist, default to
// |true|. If it ever goes away, we can do (using an undocumented pref key):
// NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
// return ![defaults objectForKey:@"AppleMiniaturizeOnDoubleClick"] ||
// [defaults boolForKey:@"AppleMiniaturizeOnDoubleClick"];
BOOL methodImplemented =
[NSWindow respondsToSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
DCHECK(methodImplemented);
return !methodImplemented ||
[NSWindow performSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
}
void ActivateProcess(pid_t pid) {
ProcessSerialNumber process;
OSStatus status = GetProcessForPID(pid, &process);
if (status == noErr) {
SetFrontProcess(&process);
} else {
OSSTATUS_DLOG(WARNING, status) << "Unable to get process for pid " << pid;
}
}
bool AmIForeground() {
ProcessSerialNumber foreground_psn = { 0 };
OSErr err = GetFrontProcess(&foreground_psn);
if (err != noErr) {
OSSTATUS_DLOG(WARNING, err) << "GetFrontProcess";
return false;
}
ProcessSerialNumber my_psn = { 0, kCurrentProcess };
Boolean result = FALSE;
err = SameProcess(&foreground_psn, &my_psn, &result);
if (err != noErr) {
OSSTATUS_DLOG(WARNING, err) << "SameProcess";
return false;
}
return result;
}
bool SetFileBackupExclusion(const FilePath& file_path) {
NSString* file_path_ns =
[NSString stringWithUTF8String:file_path.value().c_str()];
NSURL* file_url = [NSURL fileURLWithPath:file_path_ns];
// When excludeByPath is true the application must be running with root
// privileges (admin for 10.6 and earlier) but the URL does not have to
// already exist. When excludeByPath is false the URL must already exist but
// can be used in non-root (or admin as above) mode. We use false so that
// non-root (or admin) users don't get their TimeMachine drive filled up with
// unnecessary backups.
OSStatus os_err =
CSBackupSetItemExcluded(base::mac::NSToCFCast(file_url), TRUE, FALSE);
if (os_err != noErr) {
OSSTATUS_DLOG(WARNING, os_err)
<< "Failed to set backup exclusion for file '"
<< file_path.value().c_str() << "'";
}
return os_err == noErr;
}
void SetProcessName(CFStringRef process_name) {
if (!process_name || CFStringGetLength(process_name) == 0) {
NOTREACHED() << "SetProcessName given bad name.";
return;
}
if (![NSThread isMainThread]) {
NOTREACHED() << "Should only set process name from main thread.";
return;
}
// Warning: here be dragons! This is SPI reverse-engineered from WebKit's
// plugin host, and could break at any time (although realistically it's only
// likely to break in a new major release).
// When 10.7 is available, check that this still works, and update this
// comment for 10.8.
// Private CFType used in these LaunchServices calls.
typedef CFTypeRef PrivateLSASN;
typedef PrivateLSASN (*LSGetCurrentApplicationASNType)();
typedef OSStatus (*LSSetApplicationInformationItemType)(int, PrivateLSASN,
CFStringRef,
CFStringRef,
CFDictionaryRef*);
static LSGetCurrentApplicationASNType ls_get_current_application_asn_func =
NULL;
static LSSetApplicationInformationItemType
ls_set_application_information_item_func = NULL;
static CFStringRef ls_display_name_key = NULL;
static bool did_symbol_lookup = false;
if (!did_symbol_lookup) {
did_symbol_lookup = true;
CFBundleRef launch_services_bundle =
CFBundleGetBundleWithIdentifier(CFSTR("com.apple.LaunchServices"));
if (!launch_services_bundle) {
DLOG(ERROR) << "Failed to look up LaunchServices bundle";
return;
}
ls_get_current_application_asn_func =
reinterpret_cast<LSGetCurrentApplicationASNType>(
CFBundleGetFunctionPointerForName(
launch_services_bundle, CFSTR("_LSGetCurrentApplicationASN")));
if (!ls_get_current_application_asn_func)
DLOG(ERROR) << "Could not find _LSGetCurrentApplicationASN";
ls_set_application_information_item_func =
reinterpret_cast<LSSetApplicationInformationItemType>(
CFBundleGetFunctionPointerForName(
launch_services_bundle,
CFSTR("_LSSetApplicationInformationItem")));
if (!ls_set_application_information_item_func)
DLOG(ERROR) << "Could not find _LSSetApplicationInformationItem";
CFStringRef* key_pointer = reinterpret_cast<CFStringRef*>(
CFBundleGetDataPointerForName(launch_services_bundle,
CFSTR("_kLSDisplayNameKey")));
ls_display_name_key = key_pointer ? *key_pointer : NULL;
if (!ls_display_name_key)
DLOG(ERROR) << "Could not find _kLSDisplayNameKey";
// Internally, this call relies on the Mach ports that are started up by the
// Carbon Process Manager. In debug builds this usually happens due to how
// the logging layers are started up; but in release, it isn't started in as
// much of a defined order. So if the symbols had to be loaded, go ahead
// and force a call to make sure the manager has been initialized and hence
// the ports are opened.
ProcessSerialNumber psn;
GetCurrentProcess(&psn);
}
if (!ls_get_current_application_asn_func ||
!ls_set_application_information_item_func ||
!ls_display_name_key) {
return;
}
PrivateLSASN asn = ls_get_current_application_asn_func();
// Constant used by WebKit; what exactly it means is unknown.
const int magic_session_constant = -2;
OSErr err =
ls_set_application_information_item_func(magic_session_constant, asn,
ls_display_name_key,
process_name,
NULL /* optional out param */);
OSSTATUS_DLOG_IF(ERROR, err != noErr, err)
<< "Call to set process name failed";
}
// Converts a NSImage to a CGImageRef. Normally, the system frameworks can do
// this fine, especially on 10.6. On 10.5, however, CGImage cannot handle
// converting a PDF-backed NSImage into a CGImageRef. This function will
// rasterize the PDF into a bitmap CGImage. The caller is responsible for
// releasing the return value.
CGImageRef CopyNSImageToCGImage(NSImage* image) {
// This is based loosely on http://www.cocoadev.com/index.pl?CGImageRef .
NSSize size = [image size];
ScopedCFTypeRef<CGContextRef> context(
CGBitmapContextCreate(NULL, // Allow CG to allocate memory.
size.width,
size.height,
8, // bitsPerComponent
0, // bytesPerRow - CG will calculate by default.
[[NSColorSpace genericRGBColorSpace] CGColorSpace],
kCGBitmapByteOrder32Host |
kCGImageAlphaPremultipliedFirst));
if (!context.get())
return NULL;
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext:
[NSGraphicsContext graphicsContextWithGraphicsPort:context.get()
flipped:NO]];
[image drawInRect:NSMakeRect(0,0, size.width, size.height)
fromRect:NSZeroRect
operation:NSCompositeCopy
fraction:1.0];
[NSGraphicsContext restoreGraphicsState];
return CGBitmapContextCreateImage(context);
}
bool CheckLoginItemStatus(bool* is_hidden) {
ScopedCFTypeRef<LSSharedFileListItemRef> item(GetLoginItemForApp());
if (!item.get())
return false;
if (is_hidden)
*is_hidden = IsHiddenLoginItem(item);
return true;
}
void AddToLoginItems(bool hide_on_startup) {
ScopedCFTypeRef<LSSharedFileListItemRef> item(GetLoginItemForApp());
if (item.get() && (IsHiddenLoginItem(item) == hide_on_startup)) {
return; // Already is a login item with required hide flag.
}
ScopedCFTypeRef<LSSharedFileListRef> login_items(LSSharedFileListCreate(
NULL, kLSSharedFileListSessionLoginItems, NULL));
if (!login_items.get()) {
DLOG(ERROR) << "Couldn't get a Login Items list.";
return;
}
// Remove the old item, it has wrong hide flag, we'll create a new one.
if (item.get()) {
LSSharedFileListItemRemove(login_items, item);
}
NSURL* url = [NSURL fileURLWithPath:[base::mac::MainBundle() bundlePath]];
BOOL hide = hide_on_startup ? YES : NO;
NSDictionary* properties =
[NSDictionary
dictionaryWithObject:[NSNumber numberWithBool:hide]
forKey:(NSString*)kLSSharedFileListLoginItemHidden];
ScopedCFTypeRef<LSSharedFileListItemRef> new_item;
new_item.reset(LSSharedFileListInsertItemURL(
login_items, kLSSharedFileListItemLast, NULL, NULL,
reinterpret_cast<CFURLRef>(url),
reinterpret_cast<CFDictionaryRef>(properties), NULL));
if (!new_item.get()) {
DLOG(ERROR) << "Couldn't insert current app into Login Items list.";
}
}
void RemoveFromLoginItems() {
ScopedCFTypeRef<LSSharedFileListItemRef> item(GetLoginItemForApp());
if (!item.get())
return;
ScopedCFTypeRef<LSSharedFileListRef> login_items(LSSharedFileListCreate(
NULL, kLSSharedFileListSessionLoginItems, NULL));
if (!login_items.get()) {
DLOG(ERROR) << "Couldn't get a Login Items list.";
return;
}
LSSharedFileListItemRemove(login_items, item);
}
bool WasLaunchedAsLoginOrResumeItem() {
ProcessSerialNumber psn = { 0, kCurrentProcess };
base::scoped_nsobject<NSDictionary> process_info(
CFToNSCast(ProcessInformationCopyDictionary(
&psn, kProcessDictionaryIncludeAllInformationMask)));
long long temp = [[process_info objectForKey:@"ParentPSN"] longLongValue];
ProcessSerialNumber parent_psn =
{ (temp >> 32) & 0x00000000FFFFFFFFLL, temp & 0x00000000FFFFFFFFLL };
base::scoped_nsobject<NSDictionary> parent_info(
CFToNSCast(ProcessInformationCopyDictionary(
&parent_psn, kProcessDictionaryIncludeAllInformationMask)));
// Check that creator process code is that of loginwindow.
BOOL result =
[[parent_info objectForKey:@"FileCreator"] isEqualToString:@"lgnw"];
return result == YES;
}
bool WasLaunchedAsHiddenLoginItem() {
if (!WasLaunchedAsLoginOrResumeItem())
return false;
ScopedCFTypeRef<LSSharedFileListItemRef> item(GetLoginItemForApp());
if (!item.get()) {
// Lion can launch items for the resume feature. So log an error only for
// Snow Leopard or earlier.
if (IsOSSnowLeopard())
DLOG(ERROR) <<
"Process launched at Login but can't access Login Item List.";
return false;
}
return IsHiddenLoginItem(item);
}
bool RemoveQuarantineAttribute(const FilePath& file_path) {
const char kQuarantineAttrName[] = "com.apple.quarantine";
int status = removexattr(file_path.value().c_str(), kQuarantineAttrName, 0);
return status == 0 || errno == ENOATTR;
}
namespace {
// Returns the running system's Darwin major version. Don't call this, it's
// an implementation detail and its result is meant to be cached by
// MacOSXMinorVersion.
int DarwinMajorVersionInternal() {
// base::OperatingSystemVersionNumbers calls Gestalt, which is a
// higher-level operation than is needed. It might perform unnecessary
// operations. On 10.6, it was observed to be able to spawn threads (see
// http://crbug.com/53200). It might also read files or perform other
// blocking operations. Actually, nobody really knows for sure just what
// Gestalt might do, or what it might be taught to do in the future.
//
// uname, on the other hand, is implemented as a simple series of sysctl
// system calls to obtain the relevant data from the kernel. The data is
// compiled right into the kernel, so no threads or blocking or other
// funny business is necessary.
struct utsname uname_info;
if (uname(&uname_info) != 0) {
DPLOG(ERROR) << "uname";
return 0;
}
if (strcmp(uname_info.sysname, "Darwin") != 0) {
DLOG(ERROR) << "unexpected uname sysname " << uname_info.sysname;
return 0;
}
int darwin_major_version = 0;
char* dot = strchr(uname_info.release, '.');
if (dot) {
if (!base::StringToInt(base::StringPiece(uname_info.release,
dot - uname_info.release),
&darwin_major_version)) {
dot = NULL;
}
}
if (!dot) {
DLOG(ERROR) << "could not parse uname release " << uname_info.release;
return 0;
}
return darwin_major_version;
}
// Returns the running system's Mac OS X minor version. This is the |y| value
// in 10.y or 10.y.z. Don't call this, it's an implementation detail and the
// result is meant to be cached by MacOSXMinorVersion.
int MacOSXMinorVersionInternal() {
int darwin_major_version = DarwinMajorVersionInternal();
// The Darwin major version is always 4 greater than the Mac OS X minor
// version for Darwin versions beginning with 6, corresponding to Mac OS X
// 10.2. Since this correspondence may change in the future, warn when
// encountering a version higher than anything seen before. Older Darwin
// versions, or versions that can't be determined, result in
// immediate death.
CHECK(darwin_major_version >= 6);
int mac_os_x_minor_version = darwin_major_version - 4;
DLOG_IF(WARNING, darwin_major_version > 12) << "Assuming Darwin "
<< base::IntToString(darwin_major_version) << " is Mac OS X 10."
<< base::IntToString(mac_os_x_minor_version);
return mac_os_x_minor_version;
}
// Returns the running system's Mac OS X minor version. This is the |y| value
// in 10.y or 10.y.z.
int MacOSXMinorVersion() {
static int mac_os_x_minor_version = MacOSXMinorVersionInternal();
return mac_os_x_minor_version;
}
enum {
SNOW_LEOPARD_MINOR_VERSION = 6,
LION_MINOR_VERSION = 7,
MOUNTAIN_LION_MINOR_VERSION = 8,
};
} // namespace
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_7)
bool IsOSSnowLeopard() {
return MacOSXMinorVersion() == SNOW_LEOPARD_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_7)
bool IsOSLion() {
return MacOSXMinorVersion() == LION_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_7)
bool IsOSLionOrEarlier() {
return MacOSXMinorVersion() <= LION_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_7)
bool IsOSLionOrLater() {
return MacOSXMinorVersion() >= LION_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_8)
bool IsOSMountainLion() {
return MacOSXMinorVersion() == MOUNTAIN_LION_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_8)
bool IsOSMountainLionOrLater() {
return MacOSXMinorVersion() >= MOUNTAIN_LION_MINOR_VERSION;
}
#endif
#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_8)
bool IsOSLaterThanMountainLion_DontCallThis() {
return MacOSXMinorVersion() > MOUNTAIN_LION_MINOR_VERSION;
}
#endif
std::string GetModelIdentifier() {
std::string return_string;
ScopedIOObject<io_service_t> platform_expert(
IOServiceGetMatchingService(kIOMasterPortDefault,
IOServiceMatching("IOPlatformExpertDevice")));
if (platform_expert) {
ScopedCFTypeRef<CFDataRef> model_data(
static_cast<CFDataRef>(IORegistryEntryCreateCFProperty(
platform_expert,
CFSTR("model"),
kCFAllocatorDefault,
0)));
if (model_data) {
return_string =
reinterpret_cast<const char*>(CFDataGetBytePtr(model_data));
}
}
return return_string;
}
bool ParseModelIdentifier(const std::string& ident,
std::string* type,
int32* major,
int32* minor) {
size_t number_loc = ident.find_first_of("0123456789");
if (number_loc == std::string::npos)
return false;
size_t comma_loc = ident.find(',', number_loc);
if (comma_loc == std::string::npos)
return false;
int32 major_tmp, minor_tmp;
std::string::const_iterator begin = ident.begin();
if (!StringToInt(
StringPiece(begin + number_loc, begin + comma_loc), &major_tmp) ||
!StringToInt(
StringPiece(begin + comma_loc + 1, ident.end()), &minor_tmp))
return false;
*type = ident.substr(0, number_loc);
*major = major_tmp;
*minor = minor_tmp;
return true;
}
} // namespace mac
} // namespace base
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