/**
* Check the server for greeting "@RSYNCD: XX, then send this greeting back
* to server, send command '#list' to get a listing of modules.
*
* @author Igor Homyakov <*****@*****.**>
*
* @file
*/
int check_rsync(Socket_T s) {
char buf[64];
char header[10];
int rc, version_major, version_minor;
char *rsyncd = "@RSYNCD:";
char *rsyncd_exit = "@RSYNCD: EXIT";
ASSERT(s);
/* Read and check the greeting */
if (!socket_readln(s, buf, sizeof(buf))) {
LogError("RSYNC: did not see server greeting -- %s\n", STRERROR);
return FALSE;
}
Util_chomp(buf);
rc = sscanf(buf, "%10s %d.%d", header, &version_major, &version_minor);
if ((rc == EOF) || (rc != 3)) {
LogError("RSYNC: server greeting parse error %s\n", buf);
return FALSE;
}
if (strncasecmp(header, rsyncd, strlen(rsyncd)) != 0) {
LogError("RSYNC: server sent unexpected greeting -- %s\n", buf);
return FALSE;
}
/* Send back the greeting */
if (socket_print(s, "%s\n", buf) <= 0) {
LogError("RSYNC: identification string send failed -- %s\n", STRERROR);
return FALSE;
}
/* Send #list command */
if (socket_print(s, "#list\n") < 0) {
LogError("RSYNC: #list command failed -- %s\n", STRERROR);
return FALSE;
}
/* Read response: discard list output and check that we've received successful exit */
do {
if (! socket_readln(s, buf, sizeof(buf))) {
LogError("RSYNC: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Util_chomp(buf);
} while (strncasecmp(buf, rsyncd, strlen(rsyncd)));
if (strncasecmp(buf, rsyncd_exit, strlen(rsyncd_exit)) != 0) {
LogError("RSYNC: server sent unexpected response -- %s\n", buf);
return FALSE;
}
return TRUE;
}
/** * A simple Postfix SMTP access policy delegation protocol test * * To not affect real traffic, we send the following request with * fixed virtual triplet values to the server: * request=smtpd_access_policy * protocol_state=RCPT * protocol_name=SMTP * [email protected] * [email protected] * client_address=1.2.3.4 * client_name=mx.foo.tld * and check that the server replies with some action. * * @file */ int check_postfix_policy(Socket_T socket) { char buf[STRLEN]; ASSERT(socket); if(socket_print(socket, "request=smtpd_access_policy\n" "protocol_state=RCPT\n" "protocol_name=SMTP\n" "[email protected]\n" "[email protected]\n" "client_address=1.2.3.4\n" "client_name=mx.foo.tld\n" "\n") < 0) { socket_setError(socket, "POSTFIX-POLICY: error sending data -- %s", STRERROR); return FALSE; } if(! socket_readln(socket, buf, sizeof(buf))) { socket_setError(socket, "POSTFIX-POLICY: error receiving data -- %s", STRERROR); return FALSE; } Str_chomp(buf); if( (strlen(buf) <= 7) || strncasecmp(buf, "action=", 7) ) { socket_setError(socket, "POSTFIX-POLICY error: %s", *buf?buf:"no action returned"); return FALSE; } return TRUE; }
/**
* Send message to the server
* @param C An mmonit object
* @param D Data to send
* @return TRUE if the message sending succeeded otherwise FALSE
*/
static int data_send(Socket_T socket, Mmonit_T C, const char *D) {
char *auth = Util_getBasicAuthHeader(C->url->user, C->url->password);
int rv = socket_print(socket,
"POST %s HTTP/1.1\r\n"
"Host: %s:%d\r\n"
"Content-Type: text/xml\r\n"
"Content-Length: %d\r\n"
"Pragma: no-cache\r\n"
"Accept: */*\r\n"
"User-Agent: %s/%s\r\n"
"Connection: close\r\n"
"%s"
"\r\n"
"%s",
C->url->path,
C->url->hostname, C->url->port,
strlen(D),
prog, VERSION,
auth?auth:"",
D);
FREE(auth);
if (rv <0) {
LogError("M/Monit: error sending data to %s -- %s\n", C->url->url, STRERROR);
return FALSE;
}
return TRUE;
}
/**
* Check the server for greeting code '* OK' and then send LOGOUT and
* check for code '* BYE'. If alive return TRUE, else, return FALSE.
*
* @file
*/
int check_imap(Socket_T socket) {
char buf[STRLEN];
const char *ok = "* OK";
const char *bye = "* BYE";
ASSERT(socket);
// Read and check IMAP greeting
if (! socket_readln(socket, buf, sizeof(buf))) {
socket_setError(socket, "IMAP: greeting read error -- %s", STRERROR);
return FALSE;
}
Str_chomp(buf);
if (strncasecmp(buf, ok, strlen(ok)) != 0) {
socket_setError(socket, "IMAP: invalid greeting -- %s", buf);
return FALSE;
}
// Logout and check response
if (socket_print(socket, "001 LOGOUT\r\n") < 0) {
socket_setError(socket, "IMAP: logout command error -- %s", STRERROR);
return FALSE;
}
if (! socket_readln(socket, buf, sizeof(buf))) {
socket_setError(socket, "IMAP: logout response read error -- %s", STRERROR);
return FALSE;
}
Str_chomp(buf);
if (strncasecmp(buf, bye, strlen(bye)) != 0) {
socket_setError(socket, "IMAP: invalid logout response: %s", buf);
return FALSE;
}
return TRUE;
}
int check_http(Socket_T socket) {
Port_T P;
char host[STRLEN];
char auth[STRLEN]= {0};
const char *request = NULL;
const char *hostheader = NULL;
ASSERT(socket);
P = socket_get_Port(socket);
ASSERT(P);
request = P->request ? P->request : "/";
Util_getHTTPHostHeader(socket, host, STRLEN);
hostheader = P->request_hostheader ? P->request_hostheader : host;
if (socket_print(socket,
"GET %s HTTP/1.1\r\n"
"Host: %s\r\n"
"Accept: */*\r\n"
"User-Agent: %s/%s\r\n"
"%s\r\n",
request, hostheader, prog, VERSION,
get_auth_header(P, auth, STRLEN)) < 0) {
socket_setError(socket, "HTTP: error sending data -- %s\n", STRERROR);
return FALSE;
}
return check_request(socket, P);
}
/**
* Send PING and check for PONG.
* If alive return TRUE, else, return FALSE.
*
* @author Debrard Sébastien <*****@*****.**>
*
* @file
*/
int check_clamav(Socket_T s) {
char buf[STRLEN];
const char *ok= "PONG";
ASSERT(s);
if(socket_print(s, "PING\r\n") < 0) {
LogError("CLAMAV: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(!socket_readln(s, buf, sizeof(buf))) {
LogError("CLAMAV: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Util_chomp(buf);
if(strncasecmp(buf, ok, strlen(ok)) != 0) {
LogError("CLAMAV error: %s\n", buf);
return FALSE;
}
return TRUE;
}
/**
* Pass on to methods in http/cervlet.c to start/stop services
* @param P A service name as stated in the config file
* @param action A string describing the action to execute
*/
void d_check_service(const char *P, const char *action) {
Socket_T s;
char *auth= get_basic_authentication_header();
ASSERT(P);
ASSERT(action);
s= socket_new(Run.bind_addr?Run.bind_addr:"localhost",
Run.httpdport, SOCKET_TCP, Run.httpdssl);
if(!s) {
log("%s: Cannot connect to the monit daemon. "
"Did you start it with http support?\n", prog);
goto error;
} else {
socket_print(s, "GET /%s?action=%s HTTP/1.0\r\n%s\r\n", P, action, auth);
socket_free(&s);
}
error:
FREE(auth);
}
/**
* Check the server for greeting code 220 and then send a QUIT and
* check for code 221. If alive return TRUE, else, return FALSE.
*
* @file
*/
int check_ftp(Socket_T socket) {
int status;
char buf[STRLEN];
ASSERT(socket);
do {
if (! socket_readln(socket, buf, STRLEN)) {
socket_setError(socket, "FTP: error receiving data -- %s", STRERROR);
return FALSE;
}
Str_chomp(buf);
} while(buf[3] == '-'); // Discard multi-line response
if (sscanf(buf, "%d", &status) != 1 || status != 220) {
socket_setError(socket, "FTP greeting error: %s", buf);
return FALSE;
}
if (socket_print(socket, "QUIT\r\n") < 0) {
socket_setError(socket, "FTP: error sending data -- %s", STRERROR);
return FALSE;
}
if (! socket_readln(socket, buf, STRLEN)) {
socket_setError(socket, "FTP: error receiving data -- %s", STRERROR);
return FALSE;
}
Str_chomp(buf);
if (sscanf(buf, "%d", &status) != 1 || status != 221) {
socket_setError(socket, "FTP quit error: %s", buf);
return FALSE;
}
return TRUE;
}
/**
* A simple DWP (database wire protocol) test.
*
* We send the following request to the server:
* 'HEAD / HTTP/1.1'
* and check the server's status code.
*
* If the status code is >= 400, an error has occurred.
* Return TRUE if the status code is 200, otherwise FALSE.
*
* @file
*/
int check_dwp(Socket_T socket) {
#define REQ_LENGTH 1024
int n;
int status;
char buf[STRLEN];
char proto[STRLEN];
ASSERT(socket);
if(socket_print(socket, "HEAD / HTTP/1.1\r\n"
"Connection: close\r\n\r\n") < 0) {
socket_setError(socket, "DWP: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(! socket_readln(socket, buf, sizeof(buf))) {
socket_setError(socket, "DWP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Str_chomp(buf);
n= sscanf(buf, "%255s %d", proto, &status);
if(n!=2 || (status >= 400)) {
socket_setError(socket, "DWP error: %s\n", buf);
return FALSE;
}
return TRUE;
}
/**
* Send the response to the client. If the response has already been
* commited, this function does nothing.
*/
static void send_response(HttpResponse res) {
Socket_T S= res->S;
if(!res->is_committed) {
char date[STRLEN];
char server[STRLEN];
char *headers= get_headers(res);
int length = StringBuffer_length(res->outputbuffer);
res->is_committed= TRUE;
get_date(date, STRLEN);
get_server(server, STRLEN);
socket_print(S, "%s %d %s\r\n", res->protocol, res->status,
res->status_msg);
socket_print(S, "Date: %s\r\n", date);
socket_print(S, "Server: %s\r\n", server);
socket_print(S, "Content-Length: %d\r\n", length);
socket_print(S, "Connection: close\r\n");
if(headers)
socket_print(S, "%s", headers);
socket_print(S, "\r\n");
if(length)
socket_write(S, (unsigned char *)StringBuffer_toString(res->outputbuffer), length);
FREE(headers);
}
}
void socket_disconnect(struct socket *sk)
{
if (sk->fd > 0) {
trace("%s: %-32s %s", "socket", socket_print(sk),
"disconnected");
close(sk->fd);
sk->fd = -1;
if (is_unix(sk))
unlink(sk->u.un.sun_path);
}
}
/**
* Check the server for greeting code 220 and then send a QUIT and
* check for code 221. If alive return TRUE, else, return FALSE.
*
* @author Jan-Henrik Haukeland, <*****@*****.**>
* @author Michael Amster, <*****@*****.**>
*
* @version \$Id: ftp.c,v 1.15 2004/02/18 22:31:42 chopp Exp $
*
* @file
*/
int check_ftp(Socket_T s) {
int status;
char buf[STRLEN];
char msg[STRLEN];
ASSERT(s);
if(! socket_readln(s, buf, STRLEN)) {
log("FTP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
chomp(buf, STRLEN);
/* RATS: ignore */ /* chomp does zero termination */
sscanf(buf, "%d %s", &status, msg);
if(status != 220) {
log("FTP error: %s\n", buf);
return FALSE;
}
/* Read past banners */
while(NULL != socket_readln(s, buf, STRLEN)) {
if(starts_with(buf, "220")) continue;
}
if(socket_print(s, "QUIT\r\n") < 0) {
log("FTP: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(socket_read(s, buf, STRLEN) <= 0) {
log("FTP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
chomp(buf, STRLEN);
/* RATS: ignore */ /* chomp does zero termination */
sscanf(buf, "%d %s", &status, msg);
if(status != 221) {
log("FTP error: %s\n", buf);
return FALSE;
}
return TRUE;
}
/**
* Check the server for greeting code 220 and then send QUIT and
* check for code 221. If alive return TRUE, else, return FALSE.
*
* @author Jan-Henrik Haukeland, <*****@*****.**>
* @author Michael Amster, <*****@*****.**>
*
* @version \$Id: smtp.c,v 1.14 2004/02/18 22:31:42 chopp Exp $
*
* @file
*/
int check_smtp(Socket_T s) {
int status;
char buf[STRLEN];
char msg[STRLEN];
ASSERT(s);
if(socket_read(s, buf, sizeof(buf)) <= 0) {
log("SMTP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
chomp(buf, STRLEN);
/* RATS: ignore */ /* chomp does zero termination */
sscanf(buf, "%d %s", &status, msg);
if(status != 220) {
log("SMTP error: %s\n", buf);
return FALSE;
}
if(socket_print(s, "QUIT\r\n") < 0) {
log("SMTP: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(socket_read(s, buf, sizeof(buf)) <= 0) {
log("SMTP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
chomp(buf, STRLEN);
/* RATS: ignore */ /* chomp does zero termination */
sscanf(buf, "%d %s", &status, msg);
if(status != 221) {
log("SMTP error: %s\n", buf);
return FALSE;
}
return TRUE;
}
/**
* Check the server for greeting code '* OK' and then send LOGOUT and
* check for code '* BYE'. If alive return TRUE, else, return FALSE.
*
* @author Jan-Henrik Haukeland, <*****@*****.**>
*
* @file
*/
int check_imap(Socket_T s) {
char buf[STRLEN];
const char *ok= "* OK";
const char *bye= "* BYE";
ASSERT(s);
if(!socket_readln(s, buf, sizeof(buf))) {
LogError("IMAP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Util_chomp(buf);
if(strncasecmp(buf, ok, strlen(ok)) != 0) {
LogError("IMAP error: %s\n", buf);
return FALSE;
}
if(socket_print(s, "001 LOGOUT\r\n") < 0) {
LogError("IMAP: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(!socket_readln(s, buf, sizeof(buf))) {
LogError("IMAP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Util_chomp(buf);
if(strncasecmp(buf, bye, strlen(bye)) != 0) {
LogError("IMAP error: %s\n", buf);
return FALSE;
}
return TRUE;
}
/**
* Check an Apache server to monitor its status.
* Do this using the server-status report from mod_status, which
* will only be available if the server is responding to
* some extent.
*
* Currently based on the Scoreboard response, which is available
* even with ExtendedStatus Off on Apache config file.
*
* @file
*/
int check_apache_status(Socket_T socket) {
char host[STRLEN];
const char *request= "/server-status?auto";
ASSERT(socket);
if(socket_print(socket, "GET %s HTTP/1.1\r\n"
"Host: %s\r\n"
"Accept: */*\r\n"
"User-Agent: %s/%s\r\n"
"Connection: close\r\n\r\n",
request, Util_getHTTPHostHeader(socket, host, STRLEN),
prog, VERSION) < 0) {
socket_setError(socket, "HTTP: error sending data -- %s\n", STRERROR);
return FALSE;
}
return check_apache_stat(socket);
}
/**
* Send an error message to the client. This is a helper function,
* used internal if the service function fails to setup the framework
* properly; i.e. with a valid HttpRequest and a valid HttpResponse.
*/
static void internal_error(Socket_T S, int status, char *msg) {
char date[STRLEN];
char server[STRLEN];
const char *status_msg= get_status_string(status);
get_date(date, STRLEN);
get_server(server, STRLEN);
socket_print(S,
"%s %d %s\r\n"
"Date: %s\r\n"
"Server: %s\r\n"
"Content-Type: text/html\r\n"
"Connection: close\r\n"
"\r\n"
"<html><head><title>%s</title></head>"
"<body bgcolor=#FFFFFF><h2>%s</h2>%s<p>"
"<hr><a href='%s'><font size=-1>%s</font></a>"
"</body></html>\r\n",
SERVER_PROTOCOL, status, status_msg, date, server,
status_msg, status_msg, msg, SERVER_URL, server);
DEBUG("HttpRequest error: %s %d %s\n", SERVER_PROTOCOL, status, msg ? msg : status_msg);
}
int check_apache_status(Socket_T socket) {
ASSERT(socket);
char host[STRLEN];
if (socket_print(socket,
"GET /server-status?auto HTTP/1.1\r\n"
"Host: %s\r\n"
"Accept: */*\r\n"
"User-Agent: Monit/%s\r\n"
"Connection: close\r\n\r\n",
Util_getHTTPHostHeader(socket, host, STRLEN), VERSION) < 0)
{
socket_setError(socket, "HTTP: error sending data -- %s", STRERROR);
return FALSE;
}
char buffer[4096] = {0};
while (socket_readln(socket, buffer, sizeof(buffer))) {
if (Str_startsWith(buffer, "Scoreboard: ")) {
char *scoreboard = buffer + 12; // skip header
return parse_scoreboard(socket, scoreboard);
}
}
socket_setError(socket, "APACHE-STATUS: error -- no scoreboard found");
return FALSE;
}
/**
* Pass on to methods in http/cervlet.c to start/stop services
* @param S A service name as stated in the config file
* @param action A string describing the action to execute
* @return FALSE for error, otherwise TRUE
*/
int control_service_daemon(const char *S, const char *action) {
int rv = FALSE;
int status, content_length = 0;
Socket_T s;
char *auth;
char buf[STRLEN];
ASSERT(S);
ASSERT(action);
if (Util_getAction(action) == ACTION_IGNORE) {
LogError("%s: Cannot %s service '%s' -- invalid action %s\n", prog, action, S, action);
return FALSE;
}
s = socket_new(Run.bind_addr ? Run.bind_addr : "localhost", Run.httpdport, SOCKET_TCP, Run.httpdssl, NET_TIMEOUT);
if (!s) {
LogError("%s: Cannot connect to the monit daemon. Did you start it with http support?\n", prog);
return FALSE;
}
/* Send request */
auth = Util_getBasicAuthHeaderMonit();
if (socket_print(s,
"POST /%s HTTP/1.0\r\n"
"Content-Type: application/x-www-form-urlencoded\r\n"
"Content-Length: %d\r\n"
"%s"
"\r\n"
"action=%s",
S,
strlen("action=") + strlen(action),
auth ? auth : "",
action) < 0) {
LogError("%s: Cannot send the command '%s' to the monit daemon -- %s", prog, action ? action : "null", STRERROR);
goto err1;
}
/* Process response */
if (! socket_readln(s, buf, STRLEN)) {
LogError("%s: error receiving data -- %s\n", prog, STRERROR);
goto err1;
}
Util_chomp(buf);
if (! sscanf(buf, "%*s %d", &status)) {
LogError("%s: cannot parse status in response: %s\n", prog, buf);
goto err1;
}
if (status >= 300) {
char *message = NULL;
/* Skip headers */
while (socket_readln(s, buf, STRLEN)) {
if (! strncmp(buf, "\r\n", sizeof(buf)))
break;
if(Util_startsWith(buf, "Content-Length") && ! sscanf(buf, "%*s%*[: ]%d", &content_length))
goto err1;
}
if (content_length > 0 && content_length < 1024 && socket_readln(s, buf, STRLEN)) {
char token[] = "</h2>";
char *p = strstr(buf, token);
if (strlen(p) <= strlen(token))
goto err2;
p += strlen(token);
message = xcalloc(sizeof(unsigned char), content_length + 1);
snprintf(message, content_length + 1, "%s", p);
p = strstr(message, "<p>");
if (p)
*p = 0;
}
err2:
LogError("%s: action failed -- %s\n", prog, message ? message : "unable to parse response");
FREE(message);
} else
rv = TRUE;
err1:
FREE(auth);
socket_free(&s);
return rv;
}
/**
* Pass on to methods in http/cervlet.c to start/stop services
* @param S A service name as stated in the config file
* @param action A string describing the action to execute
* @param attempts Number of attemps (in case of "already action already in progres...")
* @return a string starting with "ERR" in for error, otherwise return "OK"
*/
char *control_service_daemon_message(const char *S, const char *action, int attempts, int check_exit_status /* ignored */) {
char *rv = NULL;
int status, content_length = 0;
Socket_T s;
char *auth;
char buf[STRLEN];
ASSERT(S);
ASSERT(action);
if (Util_getAction(action) == ACTION_IGNORE) {
return xstrdup("ERR1: invalid action");
}
auth = Util_getBasicAuthHeaderMonit();
retry:
/* Try with the socket first */
if (Run.bind_path) {
s = socket_new(Run.bind_path, 0, SOCKET_TCP, Run.httpdssl, NET_TIMEOUT);
}
/* Try network connection */
if (!s) {
if(!(s = socket_new(Run.bind_addr ? Run.bind_addr : "localhost", Run.httpdport,
SOCKET_TCP, Run.httpdssl, NET_TIMEOUT))) {
FREE(auth);
return xstrdup("ERR2: cannot connect to the monit daemon");
}
}
/* Send request */
if (socket_print(s,
"POST /%s HTTP/1.0\r\n"
"Content-Type: application/x-www-form-urlencoded\r\n"
"Content-Length: %d\r\n"
"%s"
"\r\n"
"action=%s",
S,
strlen("action=") + strlen(action),
auth ? auth : "",
action) < 0) {
return xstrdup("ERR3: cannot send the command");
goto err1;
}
/* Process response */
if (! socket_readln(s, buf, STRLEN)) {
rv = xstrdup("ERR4: error receiving data");
goto err1;
}
Util_chomp(buf);
if (! sscanf(buf, "%*s %d", &status)) {
rv = xstrdup("ERR5: cannot parse status in response");
goto err1;
}
if (status >= 300) {
/* Skip headers */
while (socket_readln(s, buf, STRLEN)) {
if (! strncmp(buf, "\r\n", sizeof(buf)))
break;
if(Util_startsWith(buf, "Content-Length") && ! sscanf(buf, "%*s%*[: ]%d", &content_length)) {
rv = xstrdup("ERR6: error parsing headers");
goto err1;
}
}
if (content_length > 0 && content_length < 1024 && socket_readln(s, buf, STRLEN)) {
char token[] = "</h2>";
char *p = strstr(buf, token);
if (strlen(p) <= strlen(token)) {
rv = xstrdup("ERR7: error parsing body");
goto err1;
}
p += strlen(token);
rv = xcalloc(sizeof(unsigned char), content_length + 1 + 6);
snprintf(rv, content_length + 1 + 6, "ERR8: %s", p);
p = strstr(rv, "<p>");
if (p)
*p = 0;
attempts--;
if ((attempts > 0) && (strstr(rv, "please try again later") != NULL)) {
socket_free(&s);
/*LogInfo("%s: retrying %s %s (%s)\n", prog, action, S, rv);*/
LogInfo("%s: retrying %s %s\n", prog, action, S);
FREE(rv);
sleep(1);
goto retry;
}
}
} else
rv = xstrdup("OK");
err1:
FREE(auth);
socket_free(&s);
return rv;
}
int check_sip(Socket_T socket) {
int status;
char buf[STRLEN];
int port;
char *transport;
Port_T P;
const char *request;
const char *myip;
char *rport= "";
char *proto;
ASSERT(socket);
P= socket_get_Port(socket);
ASSERT(P);
request= P->request?P->request:"*****@*****.**";
port = socket_get_local_port(socket);
proto = socket_is_secure(socket) ? "sips" : "sip";
switch(socket_get_type(socket)) {
case SOCK_DGRAM:
{
transport="UDP";
rport=";rport";
break;
}
case SOCK_STREAM:
{
transport="TCP";
break;
}
default:
{
socket_setError(socket, "Unsupported socket type, only TCP and UDP are supported\n");
return TRUE;
}
}
myip= socket_get_local_host(socket);
if(socket_print(socket,
"OPTIONS %s:%s SIP/2.0\r\n"
"Via: SIP/2.0/%s %s:%d;branch=z9hG4bKh%u%s\r\n"
"Max-Forwards: %d\r\n"
"To: <%s:%s>\r\n"
"From: monit <%s:monit@%s>;tag=%d\r\n"
"Call-ID: %u\r\n"
"CSeq: 63104 OPTIONS\r\n"
"Contact: <%s:%s:%d>\r\n"
"Accept: application/sdp\r\n"
"Content-Length: 0\r\n"
"User-Agent: %s/%s\r\n\r\n",
proto, // protocol
request, // to
transport, // via transport udp|tcp
myip, // who its from
port, // our port
random(), // branch
rport, // rport option
P->maxforward, // maximum forwards
proto, // protocol
request, // to
proto, // protocol
myip, // from host
random(), // tag
random(), // call id
proto, // protocol
myip, // contact host
port, // contact port
prog, VERSION // user agent
) < 0) {
socket_setError(socket, "SIP: error sending data -- %s\n", STRERROR);
return FALSE;
}
if(! socket_readln(socket, buf, sizeof(buf))) {
socket_setError(socket, "SIP: error receiving data -- %s\n", STRERROR);
return FALSE;
}
Str_chomp(buf);
DEBUG("Response from SIP server: %s\n", buf);
if(! sscanf(buf, "%*s %d", &status)) {
socket_setError(socket, "SIP error: cannot parse SIP status in response: %s\n", buf);
return FALSE;
}
if(status >= 400) {
socket_setError(socket, "SIP error: Server returned status %d\n", status);
return FALSE;
}
if(status >= 300 && status < 400) {
socket_setError(socket, "SIP info: Server redirection. Returned status %d\n", status);
return FALSE;
}
if(status > 100 && status < 200) {
socket_setError(socket, "SIP error: Provisional response . Returned status %d\n", status);
return FALSE;
}
return TRUE;
}
