mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-13 10:52:56 +01:00
da31917f4f
Relicense permission collected from all relevant authors as tallied at: https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md The relicense grants are collected under RELICENSE/ and will be moved to the above repository in a later commit. Fixes https://github.com/zeromq/libzmq/issues/2376
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
/* SPDX-License-Identifier: MPL-2.0 */
|
|
|
|
#include "precompiled.hpp"
|
|
#include "compat.hpp"
|
|
#include "ipc_address.hpp"
|
|
|
|
#if defined ZMQ_HAVE_IPC
|
|
|
|
#include "err.hpp"
|
|
|
|
#include <string>
|
|
|
|
zmq::ipc_address_t::ipc_address_t ()
|
|
{
|
|
memset (&_address, 0, sizeof _address);
|
|
}
|
|
|
|
zmq::ipc_address_t::ipc_address_t (const sockaddr *sa_, socklen_t sa_len_) :
|
|
_addrlen (sa_len_)
|
|
{
|
|
zmq_assert (sa_ && sa_len_ > 0);
|
|
|
|
memset (&_address, 0, sizeof _address);
|
|
if (sa_->sa_family == AF_UNIX)
|
|
memcpy (&_address, sa_, sa_len_);
|
|
}
|
|
|
|
zmq::ipc_address_t::~ipc_address_t ()
|
|
{
|
|
}
|
|
|
|
int zmq::ipc_address_t::resolve (const char *path_)
|
|
{
|
|
const size_t path_len = strlen (path_);
|
|
if (path_len >= sizeof _address.sun_path) {
|
|
errno = ENAMETOOLONG;
|
|
return -1;
|
|
}
|
|
if (path_[0] == '@' && !path_[1]) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
_address.sun_family = AF_UNIX;
|
|
memcpy (_address.sun_path, path_, path_len + 1);
|
|
/* Abstract sockets start with '\0' */
|
|
if (path_[0] == '@')
|
|
*_address.sun_path = '\0';
|
|
|
|
_addrlen =
|
|
static_cast<socklen_t> (offsetof (sockaddr_un, sun_path) + path_len);
|
|
return 0;
|
|
}
|
|
|
|
int zmq::ipc_address_t::to_string (std::string &addr_) const
|
|
{
|
|
if (_address.sun_family != AF_UNIX) {
|
|
addr_.clear ();
|
|
return -1;
|
|
}
|
|
|
|
const char prefix[] = "ipc://";
|
|
char buf[sizeof prefix + sizeof _address.sun_path];
|
|
char *pos = buf;
|
|
memcpy (pos, prefix, sizeof prefix - 1);
|
|
pos += sizeof prefix - 1;
|
|
const char *src_pos = _address.sun_path;
|
|
if (!_address.sun_path[0] && _address.sun_path[1]) {
|
|
*pos++ = '@';
|
|
src_pos++;
|
|
}
|
|
// according to http://man7.org/linux/man-pages/man7/unix.7.html, NOTES
|
|
// section, address.sun_path might not always be null-terminated; therefore,
|
|
// we calculate the length based of addrlen
|
|
const size_t src_len =
|
|
strnlen (src_pos, _addrlen - offsetof (sockaddr_un, sun_path)
|
|
- (src_pos - _address.sun_path));
|
|
memcpy (pos, src_pos, src_len);
|
|
addr_.assign (buf, pos - buf + src_len);
|
|
return 0;
|
|
}
|
|
|
|
const sockaddr *zmq::ipc_address_t::addr () const
|
|
{
|
|
return reinterpret_cast<const sockaddr *> (&_address);
|
|
}
|
|
|
|
socklen_t zmq::ipc_address_t::addrlen () const
|
|
{
|
|
return _addrlen;
|
|
}
|
|
|
|
#endif
|