ptr_is_in_exe()

bool ptr_is_in_exe(const intptr_t ptr, const struct mach_header *& header, intptr_t& offset, uintptr_t& vmaddr, const char* image_name) {
    // Usage :
    /*
    const char* image_name = "Binary / dylib etc"; //Should point to Dokkan binary
    const char* symbol_name = "Symbol / function _ZTS etc"; //Symbol to hook
    const struct mach_header* header;
    intptr_t offset;
    uintptr_t vmaddr;
    //ptr_is_in_exe(200, header, offset, vmaddr, image_name);
    //*/
    uint32_t i, count = _dyld_image_count();
    for (i = 0; i < count; i++) {
        header = _dyld_get_image_header(i);
        offset = _dyld_get_image_vmaddr_slide(i);
        //notes << i << "," << offset << ": " << _dyld_get_image_name(i) << endl;

        uint32_t j = 0;
        struct load_command* cmd = (struct load_command*)((char *)header + sizeof(struct mach_header));
        if(header->magic == MH_MAGIC_64)
            cmd = (struct load_command*)((char *)header + sizeof(struct mach_header_64));
        //struct load_command* cmd_end = cmd + header->sizeofcmds;

        while (j < header->ncmds) {
            if (cmd->cmd == LC_SEGMENT) {
                struct segment_command* seg = (struct segment_command*)cmd;
                if (((intptr_t)ptr >= (seg->vmaddr + offset)) && ((intptr_t)ptr < (seg->vmaddr + offset + seg->vmsize))) {
                    vmaddr = seg->vmaddr;
                    image_name = _dyld_get_image_name(i);
                    return true;
                }
            }
            if (cmd->cmd == LC_SEGMENT_64) {
                struct segment_command_64* seg = (struct segment_command_64*)cmd;
                if (((uintptr_t)ptr >= (seg->vmaddr + offset)) && ((uintptr_t)ptr < (seg->vmaddr + offset + seg->vmsize))) {
                    vmaddr = seg->vmaddr;
                    image_name = _dyld_get_image_name(i);
                    return true;
                }
            }

            j++;
            NSLog(@"[ptr_is_in_exe][%x]image_name : %s",i,image_name);
            NSLog(@"[ptr_is_in_exe][%x]header : %lx",i,(uintptr_t)header);
            NSLog(@"[ptr_is_in_exe][%x]offset : %ld",i,offset);
            NSLog(@"[ptr_is_in_exe][%x]vmaddr : %lu",i,vmaddr);
            cmd = (struct load_command*)((char*)cmd + cmd->cmdsize);
        }
    }
    return false;
}