linux - How to use abstract names of unix domain sockets with fcgi in Perl in Linux?

Question

In Linux, in Perl, using the FCGI module, using the Open Socket function, is it possible to create an unix domain sockets using abstract names?

I tried to create a socket starting with a null character \0wibble \zwibble \x{0}wibble and it didn't work!

It worked only using pathname, as described in unix(7):

$socket = FCGI::OpenSocket( "/tmp/wibble", 10 );

Thank you!

Answer 1

FCGI::OpenSocket() 底层的实现不支持它。

该调用最终调用了一个 C 函数int OS_CreateLocalIpcFd(const char *bindPath, int backlog)。您可以立即推断出该bindPath参数被理解为以 NUL 结尾的字符串，而不是以 NUL 为前缀的字符串。

如果您可以为 FCGI.pm 提供自己的套接字，您可能有机会完成这项工作。