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Connect/bind Unix domain sockets in a child process

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In the child process, we can do a chdir() and avoid the problem of the
path not fitting into sockaddr_un.
This commit is contained in:
Eelco Dolstra 2021-08-24 13:52:55 +02:00
parent 08cc572f89
commit 43d4d75e22
3 changed files with 69 additions and 21 deletions
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8
src/libutil/util.hh
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@ -259,7 +259,7 @@ void killUser(uid_t uid);
pid to the caller. */
struct ProcessOptions
{
string errorPrefix = "error: ";
string errorPrefix = "";
bool dieWithParent = true;
bool runExitHandlers = false;
bool allowVfork = true;
@ -574,6 +574,12 @@ void commonChildInit(Pipe & logPipe);
/* Create a Unix domain socket in listen mode. */
AutoCloseFD createUnixDomainSocket(const Path & path, mode_t mode);
/* Bind a Unix domain socket to a path. */
void bind(int fd, const std::string & path);
/* Connect to a Unix domain socket. */
void connect(int fd, const std::string & path);
// A Rust/Python-like enumerate() iterator adapter.
// Borrowed from http://reedbeta.com/blog/python-like-enumerate-in-cpp17.