#include <SystemConfiguration/SystemConfiguration.h>
#include <SystemConfiguration/SCValidation.h>
#include <SystemConfiguration/SCPrivate.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <mach/mach.h>
#include <mach/notify.h>
#include <mach/mach_error.h>
#include <pthread.h>
#include <execinfo.h>
#include <unistd.h>
#include <dlfcn.h>
#if TARGET_OS_EMBEDDED && !TARGET_OS_EMBEDDED_OTHER && !defined(DO_NOT_INFORM)
#include <CoreFoundation/CFUserNotification.h>
#endif // TARGET_OS_EMBEDDED && !TARGET_OS_EMBEDDED_OTHER && !defined(DO_NOT_INFORM)
#define N_QUICK 32
#pragma mark -
#pragma mark Miscellaneous
char *
_SC_cfstring_to_cstring(CFStringRef cfstr, char *buf, CFIndex bufLen, CFStringEncoding encoding)
{
CFIndex converted;
CFIndex last = 0;
CFIndex len;
if (cfstr == NULL) {
cfstr = CFSTR("");
}
len = CFStringGetLength(cfstr);
converted = CFStringGetBytes(cfstr,
CFRangeMake(0, len),
encoding,
0,
FALSE,
NULL,
0,
&last);
if (converted < len) {
if (buf != NULL) {
buf[0] = '\0';
}
return NULL;
}
if (buf != NULL) {
if (bufLen < (last + 1)) {
buf[0] = '\0';
return NULL;
}
} else {
bufLen = last + 1;
buf = CFAllocatorAllocate(NULL, bufLen, 0);
if (buf == NULL) {
return NULL;
}
}
(void)CFStringGetBytes(cfstr,
CFRangeMake(0, len),
encoding,
0,
FALSE,
(UInt8 *)buf,
bufLen,
&last);
buf[last] = '\0';
return buf;
}
void
_SC_sockaddr_to_string(const struct sockaddr *address, char *buf, size_t bufLen)
{
union {
const struct sockaddr *sa;
const struct sockaddr_in *sin;
const struct sockaddr_in6 *sin6;
const struct sockaddr_dl *sdl;
} addr;
addr.sa = address;
bzero(buf, bufLen);
switch (address->sa_family) {
case AF_INET :
(void)inet_ntop(addr.sin->sin_family,
&addr.sin->sin_addr,
buf,
bufLen);
break;
case AF_INET6 : {
(void)inet_ntop(addr.sin6->sin6_family,
&addr.sin6->sin6_addr,
buf,
bufLen);
if (addr.sin6->sin6_scope_id != 0) {
int n;
n = strlen(buf);
if ((n+IF_NAMESIZE+1) <= (int)bufLen) {
buf[n++] = '%';
if_indextoname(addr.sin6->sin6_scope_id, &buf[n]);
}
}
break;
}
case AF_LINK :
if (addr.sdl->sdl_len < bufLen) {
bufLen = addr.sdl->sdl_len;
} else {
bufLen = bufLen - 1;
}
bcopy(addr.sdl->sdl_data, buf, bufLen);
break;
default :
snprintf(buf, bufLen, "unexpected address family %d", address->sa_family);
break;
}
return;
}
struct sockaddr *
_SC_string_to_sockaddr(const char *str, sa_family_t af, void *buf, size_t bufLen)
{
union {
void *buf;
struct sockaddr *sa;
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
} addr;
if (buf == NULL) {
bufLen = sizeof(struct sockaddr_storage);
addr.buf = CFAllocatorAllocate(NULL, bufLen, 0);
} else {
addr.buf = buf;
}
bzero(addr.buf, bufLen);
if (((af == AF_UNSPEC) || (af == AF_INET)) &&
(bufLen >= sizeof(struct sockaddr_in)) &&
inet_aton(str, &addr.sin->sin_addr) == 1) {
addr.sin->sin_len = sizeof(struct sockaddr_in);
addr.sin->sin_family = AF_INET;
} else if (((af == AF_UNSPEC) || (af == AF_INET6)) &&
(bufLen >= sizeof(struct sockaddr_in6)) &&
inet_pton(AF_INET6, str, &addr.sin6->sin6_addr) == 1) {
char *p;
addr.sin6->sin6_len = sizeof(struct sockaddr_in6);
addr.sin6->sin6_family = AF_INET6;
p = strchr(buf, '%');
if (p != NULL) {
addr.sin6->sin6_scope_id = if_nametoindex(p + 1);
}
if (IN6_IS_ADDR_LINKLOCAL(&addr.sin6->sin6_addr) ||
IN6_IS_ADDR_MC_LINKLOCAL(&addr.sin6->sin6_addr)) {
uint16_t if_index;
if_index = ntohs(addr.sin6->sin6_addr.__u6_addr.__u6_addr16[1]);
addr.sin6->sin6_addr.__u6_addr.__u6_addr16[1] = 0;
if (addr.sin6->sin6_scope_id == 0) {
addr.sin6->sin6_scope_id = if_index;
}
}
} else {
if (addr.buf != buf) {
CFAllocatorDeallocate(NULL, addr.buf);
}
addr.buf = NULL;
}
return addr.sa;
}
void
_SC_sendMachMessage(mach_port_t port, mach_msg_id_t msg_id)
{
mach_msg_empty_send_t msg;
mach_msg_option_t options;
kern_return_t status;
msg.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0);
msg.header.msgh_size = sizeof(msg);
msg.header.msgh_remote_port = port;
msg.header.msgh_local_port = MACH_PORT_NULL;
msg.header.msgh_id = msg_id;
options = MACH_SEND_TIMEOUT;
status = mach_msg(&msg.header,
MACH_SEND_MSG|options,
msg.header.msgh_size,
0,
MACH_PORT_NULL,
0,
MACH_PORT_NULL);
if (status != MACH_MSG_SUCCESS) {
mach_msg_destroy(&msg.header);
}
return;
}
CFStringRef
_SC_trimDomain(CFStringRef domain)
{
CFIndex length;
if (!isA_CFString(domain)) {
return NULL;
}
length = CFStringGetLength(domain);
if ((length > 0) &&
(CFStringFindWithOptions(domain,
CFSTR("."),
CFRangeMake(0, 1),
kCFCompareAnchored,
NULL) ||
CFStringFindWithOptions(domain,
CFSTR("."),
CFRangeMake(0, length),
kCFCompareAnchored|kCFCompareBackwards,
NULL))) {
CFMutableStringRef trimmed;
trimmed = CFStringCreateMutableCopy(NULL, 0, domain);
CFStringTrim(trimmed, CFSTR("."));
domain = (CFStringRef)trimmed;
length = CFStringGetLength(domain);
} else {
CFRetain(domain);
}
if (length == 0) {
CFRelease(domain);
domain = NULL;
}
return domain;
}
#pragma mark -
#pragma mark Serialization
Boolean
_SCSerialize(CFPropertyListRef obj, CFDataRef *xml, void **dataRef, CFIndex *dataLen)
{
CFDataRef myXml;
if ((xml == NULL) && ((dataRef == NULL) || (dataLen == NULL))) {
return FALSE;
}
myXml = CFPropertyListCreateData(NULL,
obj,
kCFPropertyListBinaryFormat_v1_0,
0,
NULL);
if (myXml == NULL) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCSerialize() failed"));
if (xml != NULL) {
*xml = NULL;
}
if ((dataRef != NULL) && (dataLen != NULL)) {
*dataLen = 0;
*dataRef = NULL;
}
return FALSE;
}
if (xml != NULL) {
*xml = myXml;
if ((dataRef != NULL) && (dataLen != NULL)) {
*dataRef = (void *)CFDataGetBytePtr(myXml);
*dataLen = CFDataGetLength(myXml);
}
} else {
mach_msg_type_number_t len;
kern_return_t status;
status = vm_read(mach_task_self(),
(vm_address_t)CFDataGetBytePtr(myXml), (vm_size_t) CFDataGetLength(myXml), (void *)dataRef,
&len);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCSerialize(): %s"), mach_error_string(status));
CFRelease(myXml);
*dataRef = NULL;
*dataLen = 0;
return FALSE;
}
*dataLen = len;
CFRelease(myXml);
}
return TRUE;
}
Boolean
_SCUnserialize(CFPropertyListRef *obj, CFDataRef xml, void *dataRef, CFIndex dataLen)
{
CFErrorRef error = NULL;
if (xml == NULL) {
kern_return_t status;
xml = CFDataCreateWithBytesNoCopy(NULL, (void *)dataRef, dataLen, kCFAllocatorNull);
*obj = CFPropertyListCreateWithData(NULL, xml, kCFPropertyListImmutable, NULL, &error);
CFRelease(xml);
status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
if (status != KERN_SUCCESS) {
SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserialize(): %s"), mach_error_string(status));
}
} else {
*obj = CFPropertyListCreateWithData(NULL, xml, kCFPropertyListImmutable, NULL, &error);
}
if (*obj == NULL) {
if (error != NULL) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCUnserialize(): %@"), error);
CFRelease(error);
}
_SCErrorSet(kSCStatusFailed);
return FALSE;
}
return TRUE;
}
Boolean
_SCSerializeString(CFStringRef str, CFDataRef *data, void **dataRef, CFIndex *dataLen)
{
CFDataRef myData;
if (!isA_CFString(str)) {
return FALSE;
}
if ((data == NULL) && ((dataRef == NULL) || (dataLen == NULL))) {
return FALSE;
}
myData = CFStringCreateExternalRepresentation(NULL, str, kCFStringEncodingUTF8, 0);
if (myData == NULL) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeString() failed"));
if (data != NULL) {
*data = NULL;
}
if ((dataRef != NULL) && (dataLen != NULL)) {
*dataRef = NULL;
*dataLen = 0;
}
return FALSE;
}
if (data != NULL) {
*data = myData;
if ((dataRef != NULL) && (dataLen != NULL)) {
*dataRef = (void *)CFDataGetBytePtr(myData);
*dataLen = CFDataGetLength(myData);
}
} else {
mach_msg_type_number_t len;
kern_return_t status;
*dataLen = CFDataGetLength(myData);
status = vm_read(mach_task_self(),
(vm_address_t)CFDataGetBytePtr(myData), *dataLen, (void *)dataRef,
&len);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeString(): %s"), mach_error_string(status));
CFRelease(myData);
*dataRef = NULL;
*dataLen = 0;
return FALSE;
}
*dataLen = len;
CFRelease(myData);
}
return TRUE;
}
Boolean
_SCUnserializeString(CFStringRef *str, CFDataRef utf8, void *dataRef, CFIndex dataLen)
{
if (utf8 == NULL) {
kern_return_t status;
utf8 = CFDataCreateWithBytesNoCopy(NULL, dataRef, dataLen, kCFAllocatorNull);
*str = CFStringCreateFromExternalRepresentation(NULL, utf8, kCFStringEncodingUTF8);
CFRelease(utf8);
status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
if (status != KERN_SUCCESS) {
SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserializeString(): %s"), mach_error_string(status));
}
} else {
*str = CFStringCreateFromExternalRepresentation(NULL, utf8, kCFStringEncodingUTF8);
}
if (*str == NULL) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCUnserializeString() failed"));
return FALSE;
}
return TRUE;
}
Boolean
_SCSerializeData(CFDataRef data, void **dataRef, CFIndex *dataLen)
{
mach_msg_type_number_t len;
kern_return_t status;
if (!isA_CFData(data)) {
return FALSE;
}
*dataLen = CFDataGetLength(data);
status = vm_read(mach_task_self(),
(vm_address_t)CFDataGetBytePtr(data), *dataLen, (void *)dataRef,
&len);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_ERR, CFSTR("_SCSerializeData(): %s"), mach_error_string(status));
*dataRef = NULL;
*dataLen = 0;
return FALSE;
}
*dataLen = len;
return TRUE;
}
Boolean
_SCUnserializeData(CFDataRef *data, void *dataRef, CFIndex dataLen)
{
kern_return_t status;
*data = CFDataCreate(NULL, dataRef, dataLen);
status = vm_deallocate(mach_task_self(), (vm_address_t)dataRef, dataLen);
if (status != KERN_SUCCESS) {
SCLog(_sc_verbose, LOG_DEBUG, CFSTR("_SCUnserializeData(): %s"), mach_error_string(status));
_SCErrorSet(kSCStatusFailed);
return FALSE;
}
return TRUE;
}
CF_RETURNS_RETAINED CFDictionaryRef
_SCSerializeMultiple(CFDictionaryRef dict)
{
const void * keys_q[N_QUICK];
const void ** keys = keys_q;
CFIndex nElements;
CFDictionaryRef newDict = NULL;
const void * pLists_q[N_QUICK];
const void ** pLists = pLists_q;
const void * values_q[N_QUICK];
const void ** values = values_q;
nElements = CFDictionaryGetCount(dict);
if (nElements > 0) {
CFIndex i;
if (nElements > (CFIndex)(sizeof(keys_q) / sizeof(CFTypeRef))) {
keys = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
values = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
pLists = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
}
bzero(pLists, nElements * sizeof(CFTypeRef));
CFDictionaryGetKeysAndValues(dict, keys, values);
for (i = 0; i < nElements; i++) {
if (!_SCSerialize((CFPropertyListRef)values[i], (CFDataRef *)&pLists[i], NULL, NULL)) {
goto done;
}
}
}
newDict = CFDictionaryCreate(NULL,
keys,
pLists,
nElements,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
done :
if (nElements > 0) {
CFIndex i;
for (i = 0; i < nElements; i++) {
if (pLists[i]) CFRelease(pLists[i]);
}
if (keys != keys_q) {
CFAllocatorDeallocate(NULL, keys);
CFAllocatorDeallocate(NULL, values);
CFAllocatorDeallocate(NULL, pLists);
}
}
return newDict;
}
CF_RETURNS_RETAINED
CFDictionaryRef
_SCUnserializeMultiple(CFDictionaryRef dict)
{
const void * keys_q[N_QUICK];
const void ** keys = keys_q;
CFIndex nElements;
CFDictionaryRef newDict = NULL;
const void * pLists_q[N_QUICK];
const void ** pLists = pLists_q;
const void * values_q[N_QUICK];
const void ** values = values_q;
nElements = CFDictionaryGetCount(dict);
if (nElements > 0) {
CFIndex i;
if (nElements > (CFIndex)(sizeof(keys_q) / sizeof(CFTypeRef))) {
keys = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
values = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
pLists = CFAllocatorAllocate(NULL, nElements * sizeof(CFTypeRef), 0);
}
bzero(pLists, nElements * sizeof(CFTypeRef));
CFDictionaryGetKeysAndValues(dict, keys, values);
for (i = 0; i < nElements; i++) {
if (!_SCUnserialize((CFPropertyListRef *)&pLists[i], values[i], NULL, 0)) {
goto done;
}
}
}
newDict = CFDictionaryCreate(NULL,
keys,
pLists,
nElements,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
done :
if (nElements > 0) {
CFIndex i;
for (i = 0; i < nElements; i++) {
if (pLists[i]) CFRelease(pLists[i]);
}
if (keys != keys_q) {
CFAllocatorDeallocate(NULL, keys);
CFAllocatorDeallocate(NULL, values);
CFAllocatorDeallocate(NULL, pLists);
}
}
return newDict;
}
#pragma mark -
#pragma mark CFRunLoop scheduling
__private_extern__ void
_SC_signalRunLoop(CFTypeRef obj, CFRunLoopSourceRef rls, CFArrayRef rlList)
{
CFRunLoopRef rl = NULL;
CFRunLoopRef rl1 = NULL;
CFIndex i;
CFIndex n = CFArrayGetCount(rlList);
if (n == 0) {
return;
}
for (i = 0; i < n; i += 3) {
if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
continue;
}
rl1 = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
break;
}
if (rl1 == NULL) {
return;
}
rl = rl1;
for (i = i+3; i < n; i += 3) {
CFRunLoopRef rl2;
if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
continue;
}
rl2 = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
if (!CFEqual(rl1, rl2)) {
rl = NULL;
break;
}
}
if (rl != NULL) {
CFRunLoopWakeUp(rl);
return;
}
for (i = 0; i < n; i+=3) {
CFStringRef rlMode;
if (!CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
continue;
}
rl = (CFRunLoopRef)CFArrayGetValueAtIndex(rlList, i+1);
rlMode = CFRunLoopCopyCurrentMode(rl);
if (rlMode != NULL) {
Boolean waiting;
waiting = (CFRunLoopIsWaiting(rl) && CFRunLoopContainsSource(rl, rls, rlMode));
CFRelease(rlMode);
if (waiting) {
CFRunLoopWakeUp(rl);
return;
}
}
}
CFRunLoopWakeUp(rl1);
return;
}
__private_extern__ Boolean
_SC_isScheduled(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList)
{
CFIndex i;
CFIndex n = CFArrayGetCount(rlList);
for (i = 0; i < n; i += 3) {
if ((obj != NULL) && !CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
continue;
}
if ((runLoop != NULL) && !CFEqual(runLoop, CFArrayGetValueAtIndex(rlList, i+1))) {
continue;
}
if ((runLoopMode != NULL) && !CFEqual(runLoopMode, CFArrayGetValueAtIndex(rlList, i+2))) {
continue;
}
return TRUE;
}
return FALSE;
}
__private_extern__ void
_SC_schedule(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList)
{
CFArrayAppendValue(rlList, obj);
CFArrayAppendValue(rlList, runLoop);
CFArrayAppendValue(rlList, runLoopMode);
return;
}
__private_extern__ Boolean
_SC_unschedule(CFTypeRef obj, CFRunLoopRef runLoop, CFStringRef runLoopMode, CFMutableArrayRef rlList, Boolean all)
{
CFIndex i = 0;
Boolean found = FALSE;
CFIndex n = CFArrayGetCount(rlList);
while (i < n) {
if ((obj != NULL) && !CFEqual(obj, CFArrayGetValueAtIndex(rlList, i))) {
i += 3;
continue;
}
if ((runLoop != NULL) && !CFEqual(runLoop, CFArrayGetValueAtIndex(rlList, i+1))) {
i += 3;
continue;
}
if ((runLoopMode != NULL) && !CFEqual(runLoopMode, CFArrayGetValueAtIndex(rlList, i+2))) {
i += 3;
continue;
}
found = TRUE;
CFArrayRemoveValueAtIndex(rlList, i + 2);
CFArrayRemoveValueAtIndex(rlList, i + 1);
CFArrayRemoveValueAtIndex(rlList, i);
if (!all) {
return found;
}
n -= 3;
}
return found;
}
#pragma mark -
#pragma mark Bundle
#define SYSTEMCONFIGURATION_BUNDLE_ID CFSTR("com.apple.SystemConfiguration")
#define SYSTEMCONFIGURATION_FRAMEWORK_PATH "/System/Library/Frameworks/SystemConfiguration.framework"
#define SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN (sizeof(SYSTEMCONFIGURATION_FRAMEWORK_PATH) - 1)
#define SUFFIX_SYM "~sym"
#define SUFFIX_SYM_LEN (sizeof(SUFFIX_SYM) - 1)
#define SUFFIX_DST "~dst"
CFBundleRef
_SC_CFBundleGet(void)
{
static CFBundleRef bundle = NULL;
char *env;
size_t len;
if (bundle != NULL) {
return bundle;
}
bundle = CFBundleGetBundleWithIdentifier(SYSTEMCONFIGURATION_BUNDLE_ID);
if (bundle != NULL) {
CFRetain(bundle); return bundle;
}
env = getenv("DYLD_FRAMEWORK_PATH");
len = (env != NULL) ? strlen(env) : 0;
while (len > 1) {
if (env[len - 1] != '/') {
break;
}
len--;
}
if ((len > SUFFIX_SYM_LEN) &&
(strncmp(&env[len - SUFFIX_SYM_LEN], SUFFIX_SYM, SUFFIX_SYM_LEN) == 0) &&
((len + SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN) < MAXPATHLEN)) {
char path[MAXPATHLEN];
CFURLRef url;
strlcpy(path, env, sizeof(path));
strlcpy(&path[len - SUFFIX_SYM_LEN], SUFFIX_DST, sizeof(path) - (len - SUFFIX_SYM_LEN));
strlcat(&path[len], SYSTEMCONFIGURATION_FRAMEWORK_PATH, sizeof(path) - len);
url = CFURLCreateFromFileSystemRepresentation(NULL,
(UInt8 *)path,
len + SYSTEMCONFIGURATION_FRAMEWORK_PATH_LEN,
TRUE);
bundle = CFBundleCreate(NULL, url);
CFRelease(url);
}
if (bundle == NULL) {
static Boolean warned = FALSE;
SCLog(!warned, LOG_WARNING,
CFSTR("_SC_CFBundleGet(), could not get CFBundle for \"%@\""),
SYSTEMCONFIGURATION_BUNDLE_ID);
warned = TRUE;
}
return bundle;
}
CFStringRef
_SC_CFBundleCopyNonLocalizedString(CFBundleRef bundle, CFStringRef key, CFStringRef value, CFStringRef tableName)
{
CFDataRef data = NULL;
SInt32 errCode = 0;
CFURLRef resourcesURL;
CFStringRef str = NULL;
CFURLRef url;
if ((tableName == NULL) || CFEqual(tableName, CFSTR(""))) tableName = CFSTR("Localizable");
resourcesURL = CFBundleCopyResourcesDirectoryURL(bundle);
if (resourcesURL != NULL) {
CFStringRef fileName = CFStringCreateWithFormat(
NULL, NULL, CFSTR("%@.strings"), tableName);
CFURLRef enlproj = CFURLCreateCopyAppendingPathComponent(
NULL, resourcesURL, CFSTR("English.lproj"), true);
url = CFURLCreateCopyAppendingPathComponent(
NULL, enlproj, fileName, false);
CFRelease(enlproj);
CFRelease(fileName);
CFRelease(resourcesURL);
if (!CFURLCreateDataAndPropertiesFromResource(NULL,
url,
&data,
NULL,
NULL,
&errCode)) {
data = NULL;
}
CFRelease(url);
}
if (data == NULL) {
url = CFBundleCopyResourceURLForLocalization(bundle,
tableName,
CFSTR("strings"),
NULL,
CFSTR("English"));
if (url != NULL) {
if (!CFURLCreateDataAndPropertiesFromResource(NULL,
url,
&data,
NULL,
NULL,
&errCode)) {
data = NULL;
}
CFRelease(url);
}
}
if (data != NULL) {
CFDictionaryRef table;
table = CFPropertyListCreateWithData(NULL,
data,
kCFPropertyListImmutable,
NULL,
NULL);
if (table != NULL) {
if (isA_CFDictionary(table)) {
str = CFDictionaryGetValue(table, key);
if (str != NULL) {
CFRetain(str);
}
}
CFRelease(table);
}
CFRelease(data);
}
if (str == NULL) {
str = CFRetain(value);
}
return str;
}
#pragma mark -
#pragma mark Mach port / CFMachPort management
CFMachPortRef
_SC_CFMachPortCreateWithPort(const char *portDescription,
mach_port_t portNum,
CFMachPortCallBack callout,
CFMachPortContext *context)
{
CFMachPortRef port;
Boolean shouldFree = FALSE;
port = CFMachPortCreateWithPort(NULL, portNum, callout, context, &shouldFree);
if ((port == NULL) || shouldFree) {
CFStringRef err;
char *crash_info = NULL;
SCLog(TRUE, LOG_ERR,
CFSTR("%s: CFMachPortCreateWithPort() failed , port = %p"),
portDescription,
portNum);
if (port != NULL) {
err = CFStringCreateWithFormat(NULL, NULL,
CFSTR("%s: CFMachPortCreateWithPort recycled, [old] port = %@"),
portDescription, port);
} else {
err = CFStringCreateWithFormat(NULL, NULL,
CFSTR("%s: CFMachPortCreateWithPort returned NULL"),
portDescription);
}
crash_info = _SC_cfstring_to_cstring(err, NULL, 0, kCFStringEncodingASCII);
CFRelease(err);
err = CFStringCreateWithFormat(NULL,
NULL,
CFSTR("A recycled mach_port has been detected by \"%s\"."),
getprogname());
_SC_crash(crash_info, CFSTR("CFMachPort error"), err);
CFAllocatorDeallocate(NULL, crash_info);
CFRelease(err);
}
return port;
}
#pragma mark -
#pragma mark DOS encoding/codepage
#if !TARGET_OS_IPHONE
void
_SC_dos_encoding_and_codepage(CFStringEncoding macEncoding,
UInt32 macRegion,
CFStringEncoding *dosEncoding,
UInt32 *dosCodepage)
{
switch (macEncoding) {
case kCFStringEncodingMacRoman:
if (macRegion != 0)
*dosEncoding = kCFStringEncodingDOSLatin1;
else
*dosEncoding = kCFStringEncodingDOSLatinUS;
break;
case kCFStringEncodingMacJapanese:
*dosEncoding = kCFStringEncodingDOSJapanese;
break;
case kCFStringEncodingMacChineseTrad:
*dosEncoding = kCFStringEncodingDOSChineseTrad;
break;
case kCFStringEncodingMacKorean:
*dosEncoding = kCFStringEncodingDOSKorean;
break;
case kCFStringEncodingMacArabic:
*dosEncoding = kCFStringEncodingDOSArabic;
break;
case kCFStringEncodingMacHebrew:
*dosEncoding = kCFStringEncodingDOSHebrew;
break;
case kCFStringEncodingMacGreek:
*dosEncoding = kCFStringEncodingDOSGreek;
break;
case kCFStringEncodingMacCyrillic:
*dosEncoding = kCFStringEncodingDOSCyrillic;
break;
case kCFStringEncodingMacThai:
*dosEncoding = kCFStringEncodingDOSThai;
break;
case kCFStringEncodingMacChineseSimp:
*dosEncoding = kCFStringEncodingDOSChineseSimplif;
break;
case kCFStringEncodingMacCentralEurRoman:
*dosEncoding = kCFStringEncodingDOSLatin2;
break;
case kCFStringEncodingMacTurkish:
*dosEncoding = kCFStringEncodingDOSTurkish;
break;
case kCFStringEncodingMacCroatian:
*dosEncoding = kCFStringEncodingDOSLatin2;
break;
case kCFStringEncodingMacIcelandic:
*dosEncoding = kCFStringEncodingDOSIcelandic;
break;
case kCFStringEncodingMacRomanian:
*dosEncoding = kCFStringEncodingDOSLatin2;
break;
case kCFStringEncodingMacFarsi:
*dosEncoding = kCFStringEncodingDOSArabic;
break;
case kCFStringEncodingMacUkrainian:
*dosEncoding = kCFStringEncodingDOSCyrillic;
break;
default:
*dosEncoding = kCFStringEncodingDOSLatin1;
break;
}
*dosCodepage = CFStringConvertEncodingToWindowsCodepage(*dosEncoding);
return;
}
#endif // !TARGET_OS_IPHONE
#pragma mark -
#pragma mark Debugging
void
_SC_logMachPortStatus(void)
{
kern_return_t status;
mach_port_name_array_t ports;
mach_port_type_array_t types;
mach_msg_type_number_t pi, pn, tn;
CFMutableStringRef str;
SCLog(TRUE, LOG_NOTICE, CFSTR("----------"));
status = mach_port_names(mach_task_self(), &ports, &pn, &types, &tn);
if (status == MACH_MSG_SUCCESS) {
str = CFStringCreateMutable(NULL, 0);
for (pi = 0; pi < pn; pi++) {
char rights[16], *rp = &rights[0];
if (types[pi] != MACH_PORT_TYPE_NONE) {
*rp++ = ' ';
*rp++ = '(';
if (types[pi] & MACH_PORT_TYPE_SEND)
*rp++ = 'S';
if (types[pi] & MACH_PORT_TYPE_RECEIVE)
*rp++ = 'R';
if (types[pi] & MACH_PORT_TYPE_SEND_ONCE)
*rp++ = 'O';
if (types[pi] & MACH_PORT_TYPE_PORT_SET)
*rp++ = 'P';
if (types[pi] & MACH_PORT_TYPE_DEAD_NAME)
*rp++ = 'D';
*rp++ = ')';
}
*rp = '\0';
CFStringAppendFormat(str, NULL, CFSTR(" %d%s"), ports[pi], rights);
}
SCLog(TRUE, LOG_NOTICE, CFSTR("Task ports (n=%d):%@"), pn, str);
CFRelease(str);
}
return;
}
void
_SC_logMachPortReferences(const char *str, mach_port_t port)
{
const char *blanks = " ";
char buf[60];
mach_port_type_t pt;
mach_port_status_t recv_status = { 0 };
mach_port_urefs_t refs_send = 0;
mach_port_urefs_t refs_recv = 0;
mach_port_urefs_t refs_once = 0;
mach_port_urefs_t refs_pset = 0;
mach_port_urefs_t refs_dead = 0;
kern_return_t status;
buf[0] = '\0';
if (str != NULL) {
static int is_configd = -1;
if (is_configd == -1) {
is_configd = (strcmp(getprogname(), "configd") == 0);
}
if (is_configd == 1) {
strlcpy(buf,
(CFRunLoopGetMain() == CFRunLoopGetCurrent()) ? "M " : "P ",
sizeof(buf));
}
strlcat(buf, str, sizeof(buf));
strlcat(buf, blanks, sizeof(buf));
if (strcmp(&buf[sizeof(buf) - 3], " ") == 0) {
buf[sizeof(buf) - 3] = ':';
}
}
status = mach_port_type(mach_task_self(), port, &pt);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND): %s"),
buf,
port,
mach_error_string(status));
return;
}
if ((pt & MACH_PORT_TYPE_SEND) != 0) {
status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND, &refs_send);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND): %s"),
buf,
port,
mach_error_string(status));
return;
}
}
if ((pt & MACH_PORT_TYPE_RECEIVE) != 0) {
mach_msg_type_number_t count;
status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_RECEIVE, &refs_recv);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_RECEIVE): %s"),
buf,
port,
mach_error_string(status));
return;
}
count = MACH_PORT_RECEIVE_STATUS_COUNT;
status = mach_port_get_attributes(mach_task_self(),
port,
MACH_PORT_RECEIVE_STATUS,
(mach_port_info_t)&recv_status,
&count);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_attributes(..., 0x%x, MACH_PORT_RECEIVE_STATUS): %s"),
buf,
port,
mach_error_string(status));
return;
}
}
if ((pt & MACH_PORT_TYPE_SEND_ONCE) != 0) {
status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND_ONCE, &refs_once);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_SEND_ONCE): %s"),
buf,
port,
mach_error_string(status));
return;
}
}
if ((pt & MACH_PORT_TYPE_PORT_SET) != 0) {
status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_PORT_SET, &refs_pset);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_PORT_SET): %s"),
buf,
port,
mach_error_string(status));
return;
}
}
if ((pt & MACH_PORT_TYPE_DEAD_NAME) != 0) {
status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_DEAD_NAME, &refs_dead);
if (status != KERN_SUCCESS) {
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach_port_get_refs(..., 0x%x, MACH_PORT_RIGHT_DEAD_NAME): %s"),
buf,
port,
mach_error_string(status));
return;
}
}
SCLog(TRUE, LOG_NOTICE,
CFSTR("%smach port 0x%x (%d): send=%d, receive=%d, send once=%d, port set=%d, dead name=%d%s%s"),
buf,
port,
port,
refs_send,
refs_recv,
refs_once,
refs_pset,
refs_dead,
recv_status.mps_nsrequest ? ", no more senders" : "",
((pt & MACH_PORT_TYPE_DEAD_NAME) != 0) ? ", dead name request" : "");
return;
}
CFStringRef
_SC_copyBacktrace()
{
int n;
void *stack[64];
char **symbols;
CFMutableStringRef trace;
n = backtrace(stack, sizeof(stack)/sizeof(stack[0]));
if (n == -1) {
SCLog(TRUE, LOG_ERR, CFSTR("backtrace() failed: %s"), strerror(errno));
return NULL;
}
trace = CFStringCreateMutable(NULL, 0);
symbols = backtrace_symbols(stack, n);
if (symbols != NULL) {
int i;
for (i = 0; i < n; i++) {
CFStringAppendFormat(trace, NULL, CFSTR("%s\n"), symbols[i]);
}
free(symbols);
}
return trace;
}
const char *__crashreporter_info__ = NULL;
asm(".desc ___crashreporter_info__, 0x10");
static Boolean
_SC_SimulateCrash(const char *crash_info, CFStringRef notifyHeader, CFStringRef notifyMessage)
{
Boolean ok = FALSE;
#if ! TARGET_IPHONE_SIMULATOR
static bool (*dyfunc_SimulateCrash)(pid_t, mach_exception_data_type_t, CFStringRef) = NULL;
static void *image = NULL;
if ((dyfunc_SimulateCrash == NULL) && (image == NULL)) {
const char *framework = "/System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport";
struct stat statbuf;
const char *suffix = getenv("DYLD_IMAGE_SUFFIX");
char path[MAXPATHLEN];
strlcpy(path, framework, sizeof(path));
if (suffix) strlcat(path, suffix, sizeof(path));
if (0 <= stat(path, &statbuf)) {
image = dlopen(path, RTLD_LAZY | RTLD_LOCAL);
} else {
image = dlopen(framework, RTLD_LAZY | RTLD_LOCAL);
}
if (image != NULL) {
dyfunc_SimulateCrash = dlsym(image, "SimulateCrash");
} else {
image = (void *)0x1; }
}
if (dyfunc_SimulateCrash != NULL) {
CFStringRef str;
str = CFStringCreateWithCString(NULL, crash_info, kCFStringEncodingUTF8);
ok = dyfunc_SimulateCrash(getpid(), 0xbad0005cull, str);
CFRelease(str);
}
#if TARGET_OS_EMBEDDED && !TARGET_OS_EMBEDDED_OTHER && !defined(DO_NOT_INFORM)
if (ok) {
static Boolean warned = FALSE;
if (!warned) {
notifyMessage = CFStringCreateWithFormat(NULL,
NULL,
CFSTR("%@\n\nPlease collect the crash report and file a Radar."),
notifyMessage);
CFUserNotificationDisplayNotice(0,
kCFUserNotificationStopAlertLevel,
NULL,
NULL,
NULL,
notifyHeader,
notifyMessage,
NULL);
CFRelease(notifyMessage);
warned = TRUE;
}
}
#endif // TARGET_OS_EMBEDDED && !TARGET_OS_EMBEDDED_OTHER && !defined(DO_NOT_INFORM)
#endif
return ok;
}
void
_SC_crash(const char *crash_info, CFStringRef notifyHeader, CFStringRef notifyMessage)
{
Boolean ok = FALSE;
if (crash_info != NULL) {
__crashreporter_info__ = crash_info;
SCLog(TRUE, LOG_ERR, CFSTR("%s"), crash_info);
}
if (_SC_isAppleInternal()) {
ok = _SC_SimulateCrash(crash_info, notifyHeader, notifyMessage);
#ifndef DO_NOT_CRASH
if (!ok) {
__builtin_trap();
}
#endif // DO_NOT_CRASH
}
__crashreporter_info__ = NULL;
return;
}