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tcp_address: minor cleanups

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This commit is contained in:
Martin Hurton
2012-03-27 06:26:39 +02:00
parent 700e08c3c2
commit 9c46e87588
1 changed files with 12 additions and 11 deletions
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19
src/tcp_address.cpp
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@@ -213,13 +213,13 @@ int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv4only_)
#endif #endif
int zmq::tcp_address_t::resolve_interface (char const *interface_, int zmq::tcp_address_t::resolve_interface (const char *interface_,
bool ipv4only_) bool ipv4only_)
{ {
// Initialize temporary output pointers with storage address. // Initialize temporary output pointers with storage address.
sockaddr_storage ss; sockaddr_storage ss;
sockaddr *out_addr = (sockaddr *) &ss; sockaddr *out_addr = (sockaddr*) &ss;
socklen_t out_addrlen; size_t out_addrlen;
// Initialise IP-format family/port and populate temporary output pointers // Initialise IP-format family/port and populate temporary output pointers
// with the address. // with the address.
@@ -228,20 +228,21 @@ int zmq::tcp_address_t::resolve_interface (char const *interface_,
memset (&ip4_addr, 0, sizeof (ip4_addr)); memset (&ip4_addr, 0, sizeof (ip4_addr));
ip4_addr.sin_family = AF_INET; ip4_addr.sin_family = AF_INET;
ip4_addr.sin_addr.s_addr = htonl (INADDR_ANY); ip4_addr.sin_addr.s_addr = htonl (INADDR_ANY);
out_addrlen = (socklen_t) sizeof (ip4_addr); out_addrlen = sizeof ip4_addr;
memcpy (out_addr, &ip4_addr, out_addrlen); memcpy (out_addr, &ip4_addr, out_addrlen);
} else { }
else {
sockaddr_in6 ip6_addr; sockaddr_in6 ip6_addr;
memset (&ip6_addr, 0, sizeof (ip6_addr)); memset (&ip6_addr, 0, sizeof (ip6_addr));
ip6_addr.sin6_family = AF_INET6; ip6_addr.sin6_family = AF_INET6;
memcpy (&ip6_addr.sin6_addr, &in6addr_any, sizeof (in6addr_any)); memcpy (&ip6_addr.sin6_addr, &in6addr_any, sizeof (in6addr_any));
out_addrlen = (socklen_t) sizeof (ip6_addr); out_addrlen = sizeof ip6_addr;
memcpy (out_addr, &ip6_addr, out_addrlen); memcpy (out_addr, &ip6_addr, out_addrlen);
} }
// * resolves to INADDR_ANY or in6addr_any. // * resolves to INADDR_ANY or in6addr_any.
if (strcmp (interface_, "*") == 0) { if (strcmp (interface_, "*") == 0) {
zmq_assert (out_addrlen <= (socklen_t) sizeof (address)); zmq_assert (out_addrlen <= sizeof address);
memcpy (&address, out_addr, out_addrlen); memcpy (&address, out_addr, out_addrlen);
return 0; return 0;
} }
@@ -251,7 +252,7 @@ int zmq::tcp_address_t::resolve_interface (char const *interface_,
if (rc != 0 && errno != ENODEV) if (rc != 0 && errno != ENODEV)
return rc; return rc;
if (rc == 0) { if (rc == 0) {
zmq_assert (out_addrlen <= (socklen_t) sizeof (address)); zmq_assert (out_addrlen <= sizeof address);
memcpy (&address, out_addr, out_addrlen); memcpy (&address, out_addr, out_addrlen);
return 0; return 0;
} }
@@ -397,7 +398,7 @@ int zmq::tcp_address_t::resolve (const char *name_, bool local_, bool ipv4only_)
port = 0; port = 0;
else { else {
// Parse the port number (0 is not a valid port). // Parse the port number (0 is not a valid port).
port = (uint16_t) atoi (port_str.c_str()); port = (uint16_t) atoi (port_str.c_str ());
if (port == 0) { if (port == 0) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;