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fail in main mode if udp socket not set

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This commit is contained in:
Eric House 2013-01-20 21:03:43 -08:00
parent e79b0bd3eb
commit 991cc8f04c
1 changed files with 6 additions and 2 deletions
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8
xwords4/relay/xwrelay.cpp
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@ -1419,6 +1419,7 @@ enable_keepalive( int sock )
static void
maint_str_loop( int udpsock, const char* str )
{
logf( XW_LOGINFO, "%s()", __func__ );
assert( -1 != udpsock );
short len = strlen(str);
unsigned char outbuf[2 + sizeof(len) + len];
@ -1446,9 +1447,12 @@ maint_str_loop( int udpsock, const char* str )
ssize_t nRead = recvfrom( udpsock, buf, sizeof(buf), 0 /*flags*/,
&saddr.addr, &fromlen );
logf( XW_LOGINFO, "%s(); got %d bytes", __func__, nRead);
if ( 2 <= nRead && buf[0] == XWPDEV_PROTO_VERSION ) {
if ( 1 <= nRead && buf[0] == XWPDEV_PROTO_VERSION ) {
send_via_udp( udpsock, &saddr.addr, outbuf, sizeof(outbuf) );
} else {
logf( XW_LOGERROR, "unexpected data" );
}
}
} // for
@ -1644,7 +1648,7 @@ main( int argc, char** argv )
}
#endif
if ( 0 != udpport ) {
if ( -1 != udpport ) {
struct sockaddr_in saddr;
g_udpsock = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP );
saddr.sin_family = PF_INET;