dimitri/Satrap
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Removed pointer to avoid memory leaks

Browse source
This commit is contained in:
Dimitri Lozeve 2016-06-11 14:17:01 +02:00
parent c049506a56
commit 711d5a0fa8
1 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
arp.c
View file

@ -256,6 +256,8 @@ int arp_scan(int sockfd, int ifindex, struct sockaddr_in *ipaddr, unsigned char
/* The maximum address on the subnet */ /* The maximum address on the subnet */
unsigned long ip_max = ip_counter | (~ntohl(netmask->sin_addr.s_addr)); unsigned long ip_max = ip_counter | (~ntohl(netmask->sin_addr.s_addr));
struct ether_arp result;
while (ip_counter < ip_max) { while (ip_counter < ip_max) {
char ip_string[16]; char ip_string[16];
struct in_addr target_ip; struct in_addr target_ip;
@ -267,12 +269,11 @@ int arp_scan(int sockfd, int ifindex, struct sockaddr_in *ipaddr, unsigned char
send_arp_request(sockfd, ifindex, ipaddr, macaddr, target_ip); send_arp_request(sockfd, ifindex, ipaddr, macaddr, target_ip);
struct ether_arp *result = malloc(sizeof(struct ether_arp)); int isalive = listen_arp_frame(sockfd, &result);
int isalive = listen_arp_frame(sockfd, result);
if (isalive == 0) { if (isalive == 0) {
printf("Host %d.%d.%d.%d is alive!\n", printf("Host %d.%d.%d.%d is alive!\n",
result->arp_spa[0],result->arp_spa[1], result.arp_spa[0],result.arp_spa[1],
result->arp_spa[2],result->arp_spa[3]); result.arp_spa[2],result.arp_spa[3]);
} }
++ip_counter; ++ip_counter;