85 lines
2.3 KiB
Objective-C
85 lines
2.3 KiB
Objective-C
#import <Foundation/Foundation.h>
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#import "PLLogOutputView.h"
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#import "SurfaceViewController.h"
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#import "ios_uikit_bridge.h"
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#import "utils.h"
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#include "external/fishhook/fishhook.h"
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void (*orig_abort)();
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void (*orig_exit)(int code);
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int (*orig_open)(const char *path, int oflag, ...);
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void handle_fatal_exit(int code) {
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if (NSThread.isMainThread) {
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return;
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}
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[PLLogOutputView handleExitCode:code];
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if (fatalExitGroup != nil) {
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// Likely other threads are crashing, put them to sleep
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sleep(INT_MAX);
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}
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fatalExitGroup = dispatch_group_create();
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dispatch_group_enter(fatalExitGroup);
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dispatch_group_wait(fatalExitGroup, DISPATCH_TIME_FOREVER);
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}
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void hooked_abort() {
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NSLog(@"abort() called");
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handle_fatal_exit(SIGABRT);
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orig_abort();
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}
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void hooked___assert_rtn(const char* func, const char* file, int line, const char* failedexpr)
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{
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if (func == NULL) {
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fprintf(stderr, "Assertion failed: (%s), file %s, line %d.\n", failedexpr, file, line);
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} else {
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fprintf(stderr, "Assertion failed: (%s), function %s, file %s, line %d.\n", failedexpr, func, file, line);
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}
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hooked_abort();
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}
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void hooked_exit(int code) {
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NSLog(@"exit(%d) called", code);
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if (code == 0) {
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dispatch_async(dispatch_get_main_queue(), ^{
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[UIApplication.sharedApplication performSelector:@selector(suspend)];
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});
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usleep(100*1000);
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orig_exit(0);
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return;
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}
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handle_fatal_exit(code);
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if (runtimeJavaVMPtr != NULL) {
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(*runtimeJavaVMPtr)->DestroyJavaVM(runtimeJavaVMPtr);
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}
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orig_exit(code);
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}
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int hooked_open(const char *path, int oflag, ...) {
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va_list args;
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va_start(args, oflag);
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mode_t mode = va_arg(args, int);
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va_end(args);
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if (path && !strcmp(path, "/etc/resolv.conf")) {
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return orig_open([NSString stringWithFormat:@"%s/resolv.conf", getenv("POJAV_HOME")].UTF8String, oflag, mode);
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}
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return orig_open(path, oflag, mode);
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}
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void init_hookFunctions() {
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struct rebinding rebindings[] = (struct rebinding[]){
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{"abort", hooked_abort, (void *)&orig_abort},
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{"__assert_rtn", hooked___assert_rtn, NULL},
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{"exit", hooked_exit, (void *)&orig_exit},
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{"open", hooked_open, (void *)&orig_open}
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};
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rebind_symbols(rebindings, sizeof(rebindings)/sizeof(struct rebinding));
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}
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