Akkariin/proxychains-ng
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hugoc
2024-01-17 10:34:41 +01:00
Unverified
parent 23c9654cf8
commit 120cfe96be
2 changed files with 11 additions and 53 deletions
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src/libproxychains.c
+9 -10
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@@ -1039,8 +1039,9 @@ HOOKFUNC(ssize_t, sendto, int sockfd, const void *buf, size_t len, int flags,
return true_sendto(sockfd, buf, len, flags, dest_addr, addrlen);
}
//TODO hugoc: case of SOCK_DGRAM with AF_INET or AF_INET6
DEBUGDECL(char str[256]);
// Check that sockfd is a SOCK_DGRAM socket with an AF_INET or AF_INET6 address
int socktype = 0, ret = 0;
socklen_t optlen = 0;
optlen = sizeof(socktype);
@@ -1050,6 +1051,7 @@ HOOKFUNC(ssize_t, sendto, int sockfd, const void *buf, size_t len, int flags,
return true_sendto(sockfd, buf, len, flags, dest_addr, addrlen);
}
// Here we have a SOCK_DRGAM socket with an AF_INET or AF_INET6 address
ip_type dest_ip;
struct in_addr *p_addr_in;
struct in6_addr *p_addr_in6;
@@ -1079,7 +1081,7 @@ HOOKFUNC(ssize_t, sendto, int sockfd, const void *buf, size_t len, int flags,
PDEBUG("client socket: %d\n", sockfd);
// check if connect called from proxydns
remote_dns_connect = !v6 && (ntohl(p_addr_in->s_addr) >> 24 == remote_dns_subnet);
remote_dns_connect = !v6 && (ntohl(p_addr_in->s_addr) >> 24 == remote_dns_subnet);
// more specific first
if (!v6) for(i = 0; i < num_dnats && !remote_dns_connect && !dnat; i++)
@@ -1802,7 +1804,7 @@ HOOKFUNC(ssize_t, recvmsg, int sockfd, struct msghdr *msg, int flags){
HOOKFUNC(ssize_t, recv, int sockfd, void *buf, size_t len, int flags){
INIT();
PFUNC();
//TODO hugoc
return recvfrom(sockfd, buf, len, flags, NULL, NULL);
}
@@ -1924,11 +1926,8 @@ HOOKFUNC(ssize_t, recvfrom, int sockfd, void *buf, size_t len, int flags,
HOOKFUNC(ssize_t, send, int sockfd, const void *buf, size_t len, int flags){
INIT();
PFUNC();
//TODO hugoc
//Checker si c'est une SOCK_DGRAM + AFINET ou AFINET6
// Récupérer l'adresse liée avec getpeername
// Exécuter le hook sendto
// Check if sockfd is a SOCK_DGRAM socket
int socktype = 0;
socklen_t optlen = 0;
optlen = sizeof(socktype);
@@ -1938,14 +1937,13 @@ HOOKFUNC(ssize_t, send, int sockfd, const void *buf, size_t len, int flags){
return true_send(sockfd, buf, len, flags);
}
// Retreive the peer address the socket is connected to, and check it is of AF_INET or AF_INET6 family
struct sockaddr addr;
socklen_t addr_len = sizeof(addr);
if(SUCCESS != getpeername(sockfd, &addr, &addr_len )){
PDEBUG("error getpeername, errno=%d. Returning to true_send()\n", errno);
return true_send(sockfd, buf, len, flags);
}
//DEBUGDECL(char str[256]);
sa_family_t fam = SOCKFAMILY(addr);
if(!(fam == AF_INET || fam == AF_INET6)){
@@ -1953,6 +1951,7 @@ HOOKFUNC(ssize_t, send, int sockfd, const void *buf, size_t len, int flags){
return true_send(sockfd, buf, len, flags);
}
// Call the sendto() hook with the send() parameters and the retrieved peer address
return sendto(sockfd, buf, len, flags, &addr, addr_len);
}