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getsockname() bugfix

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This commit is contained in:
Joseph Henry
2016-06-30 15:35:13 -07:00
parent 3915ed031a
commit bc7e4d2af9
3 changed files with 29 additions and 21 deletions
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22
tests/udp_server.c
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@@ -53,6 +53,9 @@ int main(int argc, char *argv[]) {
int ld;
struct sockaddr_in skaddr;
struct sockaddr_in skaddr2;
int length;
// create socket
@@ -63,7 +66,8 @@ int main(int argc, char *argv[]) {
// create address
skaddr.sin_family = AF_INET;
skaddr.sin_addr.s_addr = htonl(INADDR_ANY);
//skaddr.sin_addr.s_addr = htonl(INADDR_ANY);
skaddr.sin_addr.s_addr = inet_addr("10.5.5.2");
skaddr.sin_port = htons(0);
// bind to address
@@ -74,14 +78,22 @@ int main(int argc, char *argv[]) {
/* find out what port we were assigned and print it out */
length = sizeof( skaddr );
if (getsockname(ld, (struct sockaddr *) &skaddr, &length)<0) {
length = sizeof( skaddr2 );
if (getsockname(ld, (struct sockaddr *) &skaddr2, &length)<0) {
printf("error getsockname\n");
exit(1);
}
printf("server UDP port = %d\n",ntohs(skaddr.sin_port));
int port = skaddr2.sin_port;
int ip = ntohs(skaddr2.sin_addr.s_addr);
unsigned char d[4];
d[0] = ip & 0xFF;
d[1] = (ip >> 8) & 0xFF;
d[2] = (ip >> 16) & 0xFF;
d[3] = (ip >> 24) & 0xFF;
printf(" handleBind(): %d.%d.%d.%d : %d -> Assigned: %d\n", d[0],d[1],d[2],d[3], port);
/* echo every datagram */
echo(ld);
//echo(ld);
return(0);
}