Ubuntu-20.04.6 LTS 出现 Segmentation fault (core dumped)

[hgaonice]

最后一章 http_server01 执行后，curl -v http://127.0.0.1:43211/ 服务端出现 Segmentation fault (core dumped)
./http_server01
[msg] set epoll as dispatcher, main thread
[msg] add channel fd == 5, main thread
[msg] set epoll as dispatcher, Thread-1
[msg] add channel fd == 9, Thread-1
[msg] event loop thread init and signal, Thread-1
[msg] event loop run, Thread-1
[msg] event loop thread started, Thread-1
[msg] set epoll as dispatcher, Thread-2
[msg] add channel fd == 12, Thread-2
[msg] event loop thread init and signal, Thread-2
[msg] event loop run, Thread-2
[msg] event loop thread started, Thread-2
[msg] add channel fd == 6, main thread
[msg] event loop run, main thread
[msg] epoll_wait wakeup, main thread
[msg] get message channel fd==6 for read, main thread
[msg] activate channel fd == 6, revents=2, main thread
[msg] new connection established, socket == 13
[msg] connection completed
[msg] epoll_wait wakeup, Thread-1
[msg] get message channel fd==9 for read, Thread-1
[msg] activate channel fd == 9, revents=2, Thread-1
[msg] wakeup, Thread-1
[msg] add channel fd == 13, Thread-1
[msg] epoll_wait wakeup, Thread-1
[msg] get message channel fd==13 for read, Thread-1
[msg] activate channel fd == 13, revents=2, Thread-1
[msg] get message from tcp connection connection-13
Segmentation fault (core dumped)
有同学遇到吗

[hgaonice]

按照 #33 最后的 添加 #define _GNU_SOURCE 和 #include <string.h>还是无法处理，经过gdb后，发现在buffer_find_CRLF中memmem操作就存在问题。使用 vs code ssh到代码里面看到 __USE_GNU 才会使用 最后在common.h中再添加memmem方法声明即可。

最后添加 *void *memmem (const void *__haystack, size_t __haystacklen,const void *__needle, size_t __needlelen);