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#include <launch.h>
#include <notify.h>
#include <stdio.h>
#include <unistd.h>
#include <CoreFoundation/CoreFoundation.h>
launch_data_t
CF2launch_data(CFTypeRef cfr);
void
myCFDictionaryApplyFunction(const void *key, const void *value, void *context)
{
launch_data_t ik, iw, where = context;
ik = CF2launch_data(key);
iw = CF2launch_data(value);
launch_data_dict_insert(where, iw, launch_data_get_string(ik));
launch_data_free(ik);
}
launch_data_t
CF2launch_data(CFTypeRef cfr)
{
launch_data_t r;
CFTypeID cft = CFGetTypeID(cfr);
if (cft == CFStringGetTypeID()) {
char buf[4096];
CFStringGetCString(cfr, buf, sizeof(buf), kCFStringEncodingUTF8);
r = launch_data_alloc(LAUNCH_DATA_STRING);
launch_data_set_string(r, buf);
} else if (cft == CFBooleanGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_BOOL);
launch_data_set_bool(r, CFBooleanGetValue(cfr));
} else if (cft == CFArrayGetTypeID()) {
CFIndex i, ac = CFArrayGetCount(cfr);
r = launch_data_alloc(LAUNCH_DATA_ARRAY);
for (i = 0; i < ac; i++) {
CFTypeRef v = CFArrayGetValueAtIndex(cfr, i);
if (v) {
launch_data_t iv = CF2launch_data(v);
launch_data_array_set_index(r, iv, i);
}
}
} else if (cft == CFDictionaryGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
CFDictionaryApplyFunction(cfr, myCFDictionaryApplyFunction, r);
} else if (cft == CFDataGetTypeID()) {
r = launch_data_alloc(LAUNCH_DATA_ARRAY);
launch_data_set_opaque(r, CFDataGetBytePtr(cfr), CFDataGetLength(cfr));
} else if (cft == CFNumberGetTypeID()) {
long long n;
double d;
CFNumberType cfnt = CFNumberGetType(cfr);
switch (cfnt) {
case kCFNumberSInt8Type:
case kCFNumberSInt16Type:
case kCFNumberSInt32Type:
case kCFNumberSInt64Type:
case kCFNumberCharType:
case kCFNumberShortType:
case kCFNumberIntType:
case kCFNumberLongType:
case kCFNumberLongLongType:
CFNumberGetValue(cfr, kCFNumberLongLongType, &n);
r = launch_data_alloc(LAUNCH_DATA_INTEGER);
launch_data_set_integer(r, n);
break;
case kCFNumberFloat32Type:
case kCFNumberFloat64Type:
case kCFNumberFloatType:
case kCFNumberDoubleType:
CFNumberGetValue(cfr, kCFNumberDoubleType, &d);
r = launch_data_alloc(LAUNCH_DATA_REAL);
launch_data_set_real(r, d);
break;
default:
r = NULL;
break;
}
} else {
r = NULL;
}
return r;
}
CFPropertyListRef
CreateMyPropertyListFromFile(const char *posixfile)
{
CFPropertyListRef propertyList;
CFStringRef errorString;
CFDataRef resourceData;
SInt32 errorCode;
CFURLRef fileURL;
fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, (const UInt8 *)posixfile, strlen(posixfile), false);
if (!fileURL) {
fprintf(stderr, "%s: CFURLCreateFromFileSystemRepresentation(%s) failed\n", getprogname(), posixfile);
}
if (!CFURLCreateDataAndPropertiesFromResource(kCFAllocatorDefault, fileURL, &resourceData, NULL, NULL, &errorCode)) {
fprintf(stderr, "%s: CFURLCreateDataAndPropertiesFromResource(%s) failed: %d\n", getprogname(), posixfile, (int)errorCode);
}
propertyList = CFPropertyListCreateFromXMLData(kCFAllocatorDefault, resourceData, kCFPropertyListMutableContainers, &errorString);
if (!propertyList) {
fprintf(stderr, "%s: propertyList is NULL\n", getprogname());
}
return propertyList;
}
#define _assert(test, format, args...) do { \
if (test) break; \
fprintf(stderr, format "\n", ##args); \
return 1; \
} while (false)
void stop() {
sleep(1);
}
#define SpringBoard_plist "/System/Library/LaunchDaemons/com.apple.SpringBoard.plist"
int main(int argc, const char *argv[]) {
_assert(argc == 1, "usage: sbreload");
CFDictionaryRef plist = CreateMyPropertyListFromFile(SpringBoard_plist);
_assert(plist != NULL, "CreateMyPropertyListFromFile() == NULL");
launch_data_t job = CF2launch_data(plist);
_assert(job != NULL, "CF2launch_data() == NULL");
launch_data_t data, request, response;
data = launch_data_dict_lookup(job, LAUNCH_JOBKEY_LABEL);
_assert(data != NULL, "launch_data_dict_lookup(LABEL) == NULL");
const char *label = launch_data_get_string(data);
request = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(request, launch_data_new_string(label), LAUNCH_KEY_GETJOB);
response = launch_msg(request);
_assert(response != NULL, "launch_msg(GetJob) == NULL");
launch_data_free(request);
pid_t pid;
if (launch_data_get_type(response) == LAUNCH_DATA_ERRNO) {
int error = launch_data_get_errno(response);
_assert(error == ESRCH, "GetJob(%s): %s", label, strerror(error));
pid = -1;
} else if (launch_data_get_type(response) == LAUNCH_DATA_DICTIONARY) {
data = launch_data_dict_lookup(response, LAUNCH_JOBKEY_PID);
_assert(data != NULL, "launch_data_dict_lookup(PID) == NULL");
pid = launch_data_get_integer(data);
} else _assert(false, "launch_data_get_type() not in (DICTIONARY, ERRNO)");
launch_data_free(response);
// 600 is being used to approximate 4.x/5.x boundary
if (kCFCoreFoundationVersionNumber < 600) {
fprintf(stderr, "notify_post(com.apple.mobile.springboard_teardown)\n");
notify_post("com.apple.mobile.springboard_teardown");
} else {
// XXX: this code is preferable to launchctl unoad but it requires libvproc? :(
//vproc_err_t *error = _vproc_send_signal_by_label(label, VPROC_MAGIC_UNLOAD_SIGNAL);
//_assert(error == NULL, "_vproc_send_signal_by_label(UNLOAD) != NULL");
fprintf(stderr, "launchctl unload SpringBoard.plist\n");
system("launchctl unload " SpringBoard_plist);
}
if (pid != -1) {
fprintf(stderr, "waiting for kill(%u) != 0...\n", pid);
while (kill(pid, 0) == 0)
stop();
int error = errno;
_assert(error == ESRCH, "kill(%u): %s", pid, strerror(error));
}
request = launch_data_alloc(LAUNCH_DATA_DICTIONARY);
launch_data_dict_insert(request, job, LAUNCH_KEY_SUBMITJOB);
for (;;) {
response = launch_msg(request);
_assert(response != NULL, "launch_msg(SubmitJob) == NULL");
_assert(launch_data_get_type(response) == LAUNCH_DATA_ERRNO, "launch_data_get_type() != ERRNO");
int error = launch_data_get_errno(response);
launch_data_free(response);
const char *string = strerror(error);
if (error == EEXIST) {
fprintf(stderr, "SubmitJob(%s): %s, retrying...\n", label, string);
stop();
} else {
_assert(error == 0, "SubmitJob(%s): %s", label, string);
break;
}
}
launch_data_free(request);
return 0;
}
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