ladybird/Tests/Kernel/bind-local-socket-to-symlink.cpp
Sergey Bugaev 6466c3d750 Kernel: Pass correct permission flags when opening files
Right now, permission flags passed to VFS::open() are effectively ignored, but
that is going to change.

* O_RDONLY is 0, but it's still nicer to pass it explicitly
* POSIX says that binding a Unix socket to a symlink shall fail with EADDRINUSE
2020-01-18 23:51:22 +01:00

32 lines
665 B
C++

#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
int main(int, char**)
{
constexpr const char* path = "/tmp/foo";
int rc = symlink("bar", path);
if (rc < 0) {
perror("symlink");
return 1;
}
int fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd < 0) {
perror("socket");
return 1;
}
struct sockaddr_un addr;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
rc = bind(fd, (struct sockaddr*)(&addr), sizeof(addr));
if (rc < 0 && errno == EADDRINUSE)
return 0;
return 1;
}