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Disable setnonblocking(), get_socket_address(), set_sock_priority()

Browse Source 
for fuzzing

--HG--
branch : fuzz
This commit is contained in:
Matt Johnston
2017-05-26 22:10:51 +08:00
parent 2e298b25e4
commit 4d07aa315b
6 changed files with 45 additions and 49 deletions
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51
netio.c
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@@ -311,6 +311,12 @@ void set_sock_priority(int sock, enum dropbear_prio prio) {
int so_prio_val = 0;
#endif
#ifdef DROPBEAR_FUZZ
if (fuzz.fuzzing) {
TRACE(("fuzzing skips set_sock_prio"))
return;
}
#endif
/* Don't log ENOTSOCK errors so that this can harmlessly be called
* on a client '-J' proxy pipe */
@@ -482,40 +488,25 @@ void get_socket_address(int fd, char **local_host, char **local_port,
{
struct sockaddr_storage addr;
socklen_t addrlen;
#if DROPBEAR_FUZZ
if (fuzz.fuzzing) {
fuzz_get_socket_address(fd, local_host, local_port, remote_host, remote_port, host_lookup);
return;
}
#endif
if (local_host || local_port) {
addrlen = sizeof(addr);
if (getsockname(fd, (struct sockaddr*)&addr, &addrlen) < 0) {
if (errno == ENOTSOCK) {
// FUZZ
if (local_host) {
*local_host = m_strdup("notsocket");
}
if (local_port) {
*local_port = m_strdup("999");
}
return;
} else {
dropbear_exit("Failed socket address: %s", strerror(errno));
}
dropbear_exit("Failed socket address: %s", strerror(errno));
}
getaddrstring(&addr, local_host, local_port, host_lookup);
}
if (remote_host || remote_port) {
addrlen = sizeof(addr);
if (getpeername(fd, (struct sockaddr*)&addr, &addrlen) < 0) {
if (errno == ENOTSOCK) {
// FUZZ
if (remote_host) {
*remote_host = m_strdup("notsocket");
}
if (remote_port) {
*remote_port = m_strdup("999");
}
return;
} else {
dropbear_exit("Failed socket address: %s", strerror(errno));
}
dropbear_exit("Failed socket address: %s", strerror(errno));
}
getaddrstring(&addr, remote_host, remote_port, host_lookup);
}
@@ -569,18 +560,6 @@ void getaddrstring(struct sockaddr_storage* addr,
return;
} else {
/* if we can't do a numeric lookup, something's gone terribly wrong */
if (ret == EAI_FAMILY) {
// FUZZ
// Fake it for non-socket input
if (ret_host) {
*ret_host = m_strdup("0.0.0.0");
}
if (ret_port)
{
*ret_port = m_strdup("999");
}
return;
}
dropbear_exit("Failed lookup: %s", gai_strerror(ret));
}
}