Objective-C 获取image的uuid
时间: 2024-01-11 13:05:24 浏览: 22
要在Objective-C中获取image的uuid,您可以使用以下:
```objective-c
#import <mach-o/dyld.h>
#import <dlfcn.h>
#import <stdio.h>
void printImageUUID(NSString *imageName) {
const char *imageNameCString = [imageName cStringUsingEncoding:NSUTF8StringEncoding];
const struct mach_header *header = NULL;
// 获取image的mach_header
header = _dyld_get_image_header_by_name(imageNameCString);
if (header) {
// 获取uuid
Dl_info dlinfo;
if (dladdr(header, &dlinfo) != 0) {
const struct mach_header *mh = (const struct mach_header *)dlinfo.dli_fbase;
const struct load_command *cmd = (struct load_command *)((char *)mh + sizeof(struct mach_header));
for (uint32_t i = 0; i < mh->ncmds; i++) {
if (cmd->cmd == LC_UUID) {
const struct uuid_command *uuidCmd = (const struct uuid_command *)cmd;
uuid_t uuid;
memcpy(uuid, uuidCmd->uuid, sizeof(uuid_t));
// 打印uuid
char uuidStr[37];
uuid_unparse(uuid, uuidStr);
NSLog(@"UUID for %@: %s", imageName, uuidStr);
break;
}
cmd = (struct load_command *)((char *)cmd + cmd->cmdsize);
}
}
}
}
// 示例调用
printImageUUID(@"YourImageName");
```
将`YourImageName`替换为您要获取uuid的image的名称。此代码将打印出指定image的uuid。
请注意,此方法仅适用于在运行时加载的image,如动态库或框架。如果您需要获取静态链接的image的uuid,可以考虑使用其他工具或脚本来解析可执行文件并提取uuid信息。