/* Handle ipv4 or ipv6 connection */
int
RemoteConnect(char *host,int forceipv4)
{
int err;
#if defined(HAVE_GETADDRINFO) && !defined(DARWIN)
if (forceipv4 == 'n') {
struct addrinfo query, *response, *ap;
struct addrinfo query2, *response2, *ap2;
int err,connected = false;
memset(&query,0,sizeof(struct addrinfo));
query.ai_family = AF_UNSPEC;
query.ai_socktype = SOCK_STREAM;
if ((err = getaddrinfo(host,"5308",&query,&response)) != 0) {
snprintf(g_output,CF_BUFSIZE,
"Unable to lookup hostname or cfengine service: %s",
gai_strerror(err));
CfLog(cfinform,g_output,"");
return false;
}
for (ap = response; ap != NULL; ap = ap->ai_next) {
Verbose("Connect to %s = %s on port cfengine\n",
host,sockaddr_ntop(ap->ai_addr));
if ((g_conn->sd = socket(ap->ai_family,ap->ai_socktype,ap->ai_protocol)) == -1) {
CfLog(cfinform,"Couldn't open a socket","socket");
continue;
}
if (g_bindinterface[0] != '\0') {
memset(&query2,0,sizeof(struct addrinfo));
query.ai_family = AF_UNSPEC;
query.ai_socktype = SOCK_STREAM;
if ((err = getaddrinfo(g_bindinterface,NULL,&query2,
&response2)) != 0) {
snprintf(g_output,CF_BUFSIZE,
"Unable to lookup hostname or "
"cfengine service: %s",
gai_strerror(err));
CfLog(cferror,g_output,"");
return false;
}
for (ap2 = response2; ap2 != NULL; ap2 = ap2->ai_next) {
if (bind(g_conn->sd, ap2->ai_addr, ap2->ai_addrlen) == 0) {
freeaddrinfo(response2);
break;
}
}
if (response2) {
free(response2);
}
}
signal(SIGALRM,(void *)TimeOut);
alarm(g_cf_timeout);
if (connect(g_conn->sd,ap->ai_addr,ap->ai_addrlen) >= 0) {
connected = true;
alarm(0);
signal(SIGALRM,SIG_DFL);
break;
}
alarm(0);
signal(SIGALRM,SIG_DFL);
}
if (connected) {
g_conn->family = ap->ai_family;
snprintf(g_conn->remoteip,CF_MAX_IP_LEN-1,"%s",
sockaddr_ntop(ap->ai_addr));
} else {
close(g_conn->sd);
snprintf(g_output, CF_BUFSIZE*2,
"Couldn't connect to host %s\n", host);
g_conn->sd = CF_NOT_CONNECTED;
}
if (response != NULL) {
freeaddrinfo(response);
}
if (!connected) {
return false;
}
} else
#endif
/* ---------------------- only have ipv4 ---------------------------------*/
{
struct hostent *hp;
struct sockaddr_in cin;
memset(&cin,0,sizeof(cin));
if ((hp = gethostbyname(host)) == NULL) {
snprintf(g_output, CF_BUFSIZE, "Unable to look up "
"IP address of %s", host);
CfLog(cferror,g_output,"gethostbyname");
return false;
}
cin.sin_port = CfenginePort();
cin.sin_addr.s_addr = ((struct in_addr *)(hp->h_addr))->s_addr;
cin.sin_family = AF_INET;
Verbose("Connect to %s = %s, port h=%d\n",
host,inet_ntoa(cin.sin_addr),htons(g_portnumber));
if ((g_conn->sd = socket(AF_INET,SOCK_STREAM,0)) == -1) {
CfLog(cferror,"Couldn't open a socket","socket");
return false;
}
if (g_bindinterface[0] != '\0') {
Verbose("Cannot bind interface with this OS.\n");
/* Could fix this - any point? */
}
g_conn->family = AF_INET;
snprintf(g_conn->remoteip, CF_MAX_IP_LEN-1,
"%s", inet_ntoa(cin.sin_addr));
signal(SIGALRM,(void *)TimeOut);
alarm(g_cf_timeout);
if (err=connect(g_conn->sd,(void *)&cin,sizeof(cin)) == -1) {
snprintf(g_output, CF_BUFSIZE*2,
"Couldn't connect to host %s\n", host);
CfLog(cfinform,g_output,"connect");
return false;
}
alarm(0);
signal(SIGALRM,SIG_DFL);
}
LastSeen(host,cf_connect);
return true;
}
int RemoteConnect(char *host,char forceipv4,short oldport, char *newport)
{ int err;
#if defined(HAVE_GETADDRINFO)
if (forceipv4 == 'n')
{
struct addrinfo query, *response, *ap;
struct addrinfo query2, *response2, *ap2;
int err,connected = false;
memset(&query,0,sizeof(struct addrinfo));
query.ai_family = AF_UNSPEC;
query.ai_socktype = SOCK_STREAM;
if ((err = getaddrinfo(host,newport,&query,&response)) != 0)
{
snprintf(OUTPUT,CF_BUFSIZE,"Unable to find hostname or cfengine service: (%s/%s) %s",host,STR_CFENGINEPORT,gai_strerror(err));
CfLog(cfinform,OUTPUT,"");
return false;
}
for (ap = response; ap != NULL; ap = ap->ai_next)
{
Verbose("Connect to %s = %s on port %s\n",host,sockaddr_ntop(ap->ai_addr),newport);
if ((CONN->sd = socket(ap->ai_family,ap->ai_socktype,ap->ai_protocol)) == -1)
{
CfLog(cfinform,"Couldn't open a socket","socket");
continue;
}
if (BINDINTERFACE[0] != '\0')
{
memset(&query2,0,sizeof(struct addrinfo));
query.ai_family = AF_UNSPEC;
query.ai_socktype = SOCK_STREAM;
if ((err = getaddrinfo(BINDINTERFACE,NULL,&query2,&response2)) != 0)
{
snprintf(OUTPUT,CF_BUFSIZE,"Unable to lookup hostname or cfengine service: %s",gai_strerror(err));
CfLog(cferror,OUTPUT,"");
return false;
}
for (ap2 = response2; ap2 != NULL; ap2 = ap2->ai_next)
{
if (bind(CONN->sd, ap2->ai_addr, ap2->ai_addrlen) == 0)
{
freeaddrinfo(response2);
response2 = NULL;
break;
}
}
if (response2)
{
freeaddrinfo(response2);
}
}
signal(SIGALRM,(void *)TimeOut);
alarm(CF_TIMEOUT);
if (connect(CONN->sd,ap->ai_addr,ap->ai_addrlen) >= 0)
{
connected = true;
alarm(0);
signal(SIGALRM,SIG_DFL);
break;
}
alarm(0);
signal(SIGALRM,SIG_DFL);
}
if (connected)
{
CONN->family = ap->ai_family;
snprintf(CONN->remoteip,CF_MAX_IP_LEN-1,"%s",sockaddr_ntop(ap->ai_addr));
}
else
{
close(CONN->sd);
snprintf(OUTPUT,CF_BUFSIZE*2,"Couldn't connect to host %s\n",host);
CONN->sd = CF_NOT_CONNECTED;
}
if (response != NULL)
{
freeaddrinfo(response);
}
if (!connected)
{
return false;
}
}
else
#endif /* ---------------------- only have ipv4 ---------------------------------*/
{
struct hostent *hp;
struct sockaddr_in cin;
memset(&cin,0,sizeof(cin));
if ((hp = gethostbyname(host)) == NULL)
{
snprintf(OUTPUT,CF_BUFSIZE,"Unable to look up IP address of %s",host);
CfLog(cferror,OUTPUT,"gethostbyname");
return false;
}
cin.sin_port = oldport;
cin.sin_addr.s_addr = ((struct in_addr *)(hp->h_addr))->s_addr;
cin.sin_family = AF_INET;
Verbose("Connect to %s = %s, port =%u\n",host,inet_ntoa(cin.sin_addr),SHORT_CFENGINEPORT);
if ((CONN->sd = socket(AF_INET,SOCK_STREAM,0)) == -1)
{
CfLog(cferror,"Couldn't open a socket","socket");
return false;
}
if (BINDINTERFACE[0] != '\0')
{
Verbose("Cannot bind interface with this OS.\n");
/* Could fix this - any point? */
}
CONN->family = AF_INET;
snprintf(CONN->remoteip,CF_MAX_IP_LEN-1,"%s",inet_ntoa(cin.sin_addr));
signal(SIGALRM,(void *)TimeOut);
alarm(CF_TIMEOUT);
if (err=connect(CONN->sd,(void *)&cin,sizeof(cin)) == -1)
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Couldn't connect to host %s\n",host);
CfLog(cfinform,OUTPUT,"connect");
return false;
}
alarm(0);
signal(SIGALRM,SIG_DFL);
}
LastSeen(host,cf_connect);
return true;
}
