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Fixed possible bug.

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This commit is contained in:
irungentoo 2013-10-20 16:00:30 -04:00
parent 9303c18b0c
commit be06888517
1 changed files with 7 additions and 1 deletions
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8
toxcore/LAN_discovery.c
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@ -42,6 +42,7 @@ static void fetch_broadcast_info(uint16_t port)
*/ */
broadcast_count = 0; broadcast_count = 0;
sock_t sock = 0; sock_t sock = 0;
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
return; return;
@ -64,6 +65,7 @@ static void fetch_broadcast_info(uint16_t port)
* enough, for everybody!) * enough, for everybody!)
*/ */
int i, count = ifconf.ifc_len / sizeof(struct ifreq); int i, count = ifconf.ifc_len / sizeof(struct ifreq);
for (i = 0; i < count; i++) { for (i = 0; i < count; i++) {
/* there are interfaces with are incapable of broadcast */ /* there are interfaces with are incapable of broadcast */
if (ioctl(sock, SIOCGIFBRDADDR, &i_faces[i]) < 0) if (ioctl(sock, SIOCGIFBRDADDR, &i_faces[i]) < 0)
@ -74,6 +76,10 @@ static void fetch_broadcast_info(uint16_t port)
continue; continue;
struct sockaddr_in *sock4 = (struct sockaddr_in *)&i_faces[i].ifr_broadaddr; struct sockaddr_in *sock4 = (struct sockaddr_in *)&i_faces[i].ifr_broadaddr;
if (broadcast_count >= MAX_INTERFACES)
return;
IP_Port *ip_port = &broadcast_ip_port[broadcast_count]; IP_Port *ip_port = &broadcast_ip_port[broadcast_count];
ip_port->ip.family = AF_INET; ip_port->ip.family = AF_INET;
ip_port->ip.ip4.in_addr = sock4->sin_addr; ip_port->ip.ip4.in_addr = sock4->sin_addr;
@ -101,7 +107,7 @@ static uint32_t send_broadcasts(Networking_Core *net, uint16_t port, uint8_t *da
int i; int i;
for(i = 0; i < broadcast_count; i++) for (i = 0; i < broadcast_count; i++)
sendpacket(net, broadcast_ip_port[i], data, 1 + crypto_box_PUBLICKEYBYTES); sendpacket(net, broadcast_ip_port[i], data, 1 + crypto_box_PUBLICKEYBYTES);
return 1; return 1;