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Properly disable SIGPIPE on OSX network sockets.

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Disable SO_NOSIGPIPE socket option when avaiable.
Use MSG_NOSIGNAL send flag on systems that support it.
This commit is contained in:
Fabio Alessandrelli 2019-06-28 16:58:43 +02:00
parent 6e03236574
commit 4517db75b5
1 changed files with 9 additions and 8 deletions
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17
drivers/unix/net_socket_posix.cpp
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@ -55,10 +55,6 @@
#include <netinet/tcp.h>
#if defined(__APPLE__)
#define MSG_NOSIGNAL SO_NOSIGPIPE
#endif
// BSD calls this flag IPV6_JOIN_GROUP
#if !defined(IPV6_ADD_MEMBERSHIP) && defined(IPV6_JOIN_GROUP)
#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
@ -87,10 +83,6 @@
#define SOCK_IOCTL ioctlsocket
#define SOCK_CLOSE closesocket
// Windows doesn't have this flag
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif
// Workaround missing flag in MinGW
#if defined(__MINGW32__) && !defined(SIO_UDP_NETRESET)
#define SIO_UDP_NETRESET _WSAIOW(IOC_VENDOR, 15)
@ -341,6 +333,13 @@ Error NetSocketPosix::open(Type p_sock_type, IP::Type &ip_type) {
print_verbose("Unable to turn off UDP WSAENETRESET behaviour on Windows");
}
}
#endif
#if defined(SO_NOSIGPIPE)
// Disable SIGPIPE (should only be relevant to stream sockets, but seems to affect UDP too on iOS)
int par = 1;
if (setsockopt(_sock, SOL_SOCKET, SO_NOSIGPIPE, SOCK_CBUF(&par), sizeof(int)) != 0) {
print_verbose("Unable to turn off SIGPIPE on socket");
}
#endif
return OK;
}
@ -546,8 +545,10 @@ Error NetSocketPosix::send(const uint8_t *p_buffer, int p_len, int &r_sent) {
ERR_FAIL_COND_V(!is_open(), ERR_UNCONFIGURED);
int flags = 0;
#ifdef MSG_NOSIGNAL
if (_is_stream)
flags = MSG_NOSIGNAL;
#endif
r_sent = ::send(_sock, SOCK_CBUF(p_buffer), p_len, flags);
if (r_sent < 0) {