/* copy the via lines from the message to the message
reply for correct routing of our reply.
*/
void cpy_vias(char *reply, char *dest){
char *first_via, *middle_via, *last_via, *backup;
/* lets see if we find any via */
if ((first_via=STRSTR(reply, "VIA_STR"))==NULL &&
(first_via=STRSTR(reply, "\nVIA_SHORT_STR"))==NULL ){
printf("error: the received message doesn't contain a Via header\n");
exit_code(3);
}
last_via=first_via+4;
middle_via=last_via;
/* proceed additional via lines */
while ((middle_via=STRSTR(last_via, "VIA_STR"))!=NULL ||
(middle_via=STRSTR(last_via, "\nVIA_SHORT_STR"))!=NULL )
last_via=middle_via+4;
last_via=strchr(last_via, '\n');
middle_via=strchr(dest, '\n')+1;
/* make a backup, insert the vias after the first line and append
backup
*/
backup=malloc(strlen(middle_via)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strcpy(backup, middle_via);
strncpy(middle_via, first_via, (size_t)(last_via-first_via+1));
strcpy(middle_via+(last_via-first_via+1), backup);
free(backup);
if (verbose > 2)
printf("message reply with vias included:\n%s\n", reply);
}
void cpy_to(char *reply, char *dest) {
char *src_to, *dst_to, *backup, *tmp;
/* find the position where we want to insert the To */
if ((dst_to=STRSTR(dest, "TO_STR"))==NULL &&
(dst_to=STRSTR(dest, "\nTO_SHORT_STR"))==NULL) {
printf("error: could not find To in the reply\n");
exit_code(2);
}
/* find the To we want to copy */
if ((src_to=STRSTR(reply, "TO_STR"))==NULL &&
(src_to=STRSTR(reply, "\nTO_SHORT_STR"))==NULL) {
if (verbose > 0)
printf("warning: could not find To in reply. "
"trying with original To\n");
}
else {
/* both To found, so copy it */
tmp=strchr(dst_to, '\n');
tmp++;
backup=malloc(strlen(tmp)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strcpy(backup, tmp);
tmp=strchr(src_to, '\n');
strncpy(dst_to, src_to, (size_t)(tmp-src_to+1));
strcpy(dst_to+(tmp-src_to+1), backup);
free(backup);
if (verbose >2)
printf("reply with copyed To:\n%s\n", dest);
}
}
static inline unsigned long srv_ruli(char *host, int *port, char *srv) {
int srv_code;
int ruli_opts = RULI_RES_OPT_SEARCH | RULI_RES_OPT_SRV_NOINET6 | RULI_RES_OPT_SRV_NOSORT6 | RULI_RES_OPT_SRV_NOFALL;
#ifdef RULI_RES_OPT_SRV_CNAME
ruli_opts |= RULI_RES_OPT_SRV_CNAME;
#endif
ruli_sync_t *sync_query = ruli_sync_query(srv, host, *port, ruli_opts);
/* sync query failure? */
if (!sync_query) {
printf("DNS SRV lookup failed for: %s\n", host);
exit_code(2, __PRETTY_FUNCTION__, "DNS SRV lookup failed");
}
srv_code = ruli_sync_srv_code(sync_query);
/* timeout? */
if (srv_code == RULI_SRV_CODE_ALARM) {
printf("Timeout during DNS SRV lookup for: %s\n", host);
ruli_sync_delete(sync_query);
exit_code(2, __PRETTY_FUNCTION__, "timeout during DNS SRV lookup");
}
/* service provided? */
else if (srv_code == RULI_SRV_CODE_UNAVAILABLE) {
printf("SRV service not provided for: %s\n", host);
ruli_sync_delete(sync_query);
exit_code(2, __PRETTY_FUNCTION__, "missing service in DNS SRV reply");
}
else if (srv_code) {
int rcode = ruli_sync_rcode(sync_query);
if (verbose > 1)
printf("SRV query failed for: %s, srv_code=%d, rcode=%d\n", host, srv_code, rcode);
ruli_sync_delete(sync_query);
return 0;
}
ruli_list_t *srv_list = ruli_sync_srv_list(sync_query);
int srv_list_size = ruli_list_size(srv_list);
if (srv_list_size < 1) {
if (verbose > 1)
printf("No SRV record: %s.%s\n", srv, host);
return 0;
}
ruli_srv_entry_t *entry = (ruli_srv_entry_t *) ruli_list_get(srv_list, 0);
ruli_list_t *addr_list = &entry->addr_list;
int addr_list_size = ruli_list_size(addr_list);
if (addr_list_size < 1) {
printf("missing addresses in SRV lookup for: %s\n", host);
ruli_sync_delete(sync_query);
exit_code(2, __PRETTY_FUNCTION__, "missing address in DNS SRV reply");
}
*port = entry->port;
ruli_addr_t *addr = (ruli_addr_t *) ruli_list_get(addr_list, 0);
return addr->addr.ipv4.s_addr;
}
/* Finds the SRV records for the given host. It returns the target IP
* address and fills the port and transport if a suitable SRV record
* exists. Otherwise it returns 0. The function follows 3263: first
* TLS, then TCP and finally UDP. */
unsigned long getsrvadr(char *host, int *port, unsigned int *transport) {
unsigned long adr = 0;
#ifdef HAVE_SRV
int srvport = 5060;
#ifdef HAVE_CARES_H
int status;
int optmask = ARES_OPT_FLAGS;
struct ares_options options;
options.flags = ARES_FLAG_NOCHECKRESP;
options.servers = NULL;
options.nservers = 0;
status = ares_init_options(&channel, &options, optmask);
if (status != ARES_SUCCESS) {
printf("error: failed to initialize ares\n");
exit_code(2);
}
#endif
#ifdef WITH_TLS_TRANSP
adr = getsrvaddress(host, &srvport, SRV_SIP_TLS);
if (adr != 0) {
*transport = SIP_TLS_TRANSPORT;
if (verbose > 1)
printf("using SRV record: %s.%s:%i\n", SRV_SIP_TLS, host, srvport);
printf("TLS transport not yet supported\n");
exit_code(2);
}
else {
#endif
adr = getsrvaddress(host, &srvport, SRV_SIP_TCP);
if (adr != 0) {
*transport = SIP_TCP_TRANSPORT;
if (verbose > 1)
printf("using SRV record: %s.%s:%i\n", SRV_SIP_TCP, host, srvport);
}
else {
adr = getsrvaddress(host, &srvport, SRV_SIP_UDP);
if (adr != 0) {
*transport = SIP_UDP_TRANSPORT;
if (verbose > 1)
printf("using SRV record: %s.%s:%i\n", SRV_SIP_UDP, host, srvport);
}
}
#ifdef WITH_TLS_TRANSP
}
#endif
#ifdef HAVE_CARES_H
ares_destroy(channel);
#endif
*port = srvport;
#endif // HAVE_SRV
return adr;
}
inline unsigned long srv_ares(char *host, int *port, char *srv) {
int nfds, count, srvh_len;
char *srvh;
fd_set read_fds, write_fds;
struct timeval *tvp, tv;
caport = 0;
caadr = 0;
ca_tmpname = NULL;
#ifdef DEBUG
printf("!!! ARES query !!!\n");
#endif
srvh_len = strlen(host) + strlen(srv) + 2;
srvh = malloc(srvh_len);
if (srvh == NULL) {
printf("error: failed to allocate memory (%i) for ares query\n", srvh_len);
exit_code(2);
}
memset(srvh, 0, srvh_len);
strncpy(srvh, srv, strlen(srv));
memcpy(srvh + strlen(srv), ".", 1);
strcpy(srvh + strlen(srv) + 1, host);
#ifdef DEBUG
printf("hostname: '%s', len: %i\n", srvh, srvh_len);
#endif
ares_query(channel, srvh, CARES_CLASS_C_IN, CARES_TYPE_SRV, cares_callback, (char *) NULL);
#ifdef DEBUG
printf("after ares_query\n");
#endif
/* wait for query to complete */
while (1) {
FD_ZERO(&read_fds);
FD_ZERO(&write_fds);
nfds = ares_fds(channel, &read_fds, &write_fds);
if (nfds == 0)
break;
tvp = ares_timeout(channel, NULL, &tv);
count = select(nfds, &read_fds, &write_fds, NULL, tvp);
if (count < 0 && errno != EINVAL) {
perror("ares select");
exit_code(2);
}
ares_process(channel, &read_fds, &write_fds);
}
#ifdef DEBUG
printf("end of while\n");
#endif
*port = caport;
if (caadr == 0 && ca_tmpname != NULL) {
caadr = getaddress(ca_tmpname);
}
if (ca_tmpname != NULL)
free(ca_tmpname);
free(srvh);
return caadr;
}
/* add a Via Header Field in the message. */
void add_via(char *mes)
{
char *via_line, *via, *via2, *backup;
/* first build our own Via-header-line */
via_line = malloc(VIA_SIP_STR_LEN+strlen(fqdn)+15);
if (!via_line) {
printf("failed to allocate memory\n");
exit_code(255);
}
snprintf(via_line, VIA_SIP_STR_LEN+strlen(fqdn)+5+10, "%s%s:%i;rport\r\n", VIA_SIP_STR, fqdn, lport);
if (verbose > 2)
printf("our Via-Line: %s\n", via_line);
if (strlen(mes)+strlen(via_line)>= BUFSIZE){
printf("can't add our Via Header Line because file is too big\n");
exit_code(2);
}
via=STRSTR(mes, "\nVIA_STR");
via2=STRSTR(mes, "\nVIA_SHORT_STR");
if (via==NULL && via2==NULL ){
/* We doesn't find a Via so we insert our via
direct after the first line. */
via=strchr(mes,'\n');
if(via == NULL) {
printf("failed to find new line to insert Via\n");
return;
}
}
else if (via!=NULL && via2!=NULL && via2<via){
/* the short via is above the long version */
via = via2;
}
else if (via==NULL && via2!=NULL){
/* their is only a short via */
via = via2;
}
via++;
if (!via) {
printf("failed to find Via header\n");
exit_code(1);
}
/* finnaly make a backup, insert our via and append the backup */
backup=malloc((strlen(via)+1));
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, via, strlen(via)+1);
strncpy(via, via_line, strlen(via_line));
strncpy(via+strlen(via_line), backup, strlen(backup)+1);
if (verbose > 1)
printf("New message with Via-Line:\n%s\n", mes);
free(via_line);
free(backup);
}
static inline void on_success(char *rep)
{
if ((rep != NULL) && re && regexec(re, rep, 0, 0, 0) == REG_NOMATCH) {
log_message(req);
fprintf(stderr, "error: RegExp failed\n");
exit_code(32, __PRETTY_FUNCTION__, "regular expression failed");
} else {
exit_code(0, __PRETTY_FUNCTION__, NULL);
}
}
/* tries to take care of a redirection */
void handle_3xx(struct sockaddr_in *tadr)
{
char *uscheme, *uuser, *uhost, *contact;
printf("** received redirect ");
if (warning_ext == 1) {
printf("from ");
warning_extract(rec);
printf("\n");
}
else
printf("\n");
/* we'll try to handle 301 and 302 here, other 3xx are to complex */
regcomp(&(regexps.redexp), "^SIP/[0-9]\\.[0-9] 30[125] ",
REG_EXTENDED|REG_NOSUB|REG_ICASE);
if (regexec(&(regexps.redexp), rec, 0, 0, 0) == REG_NOERROR) {
/* try to find the contact in the redirect */
contact = uri_from_contact(rec);
if (contact==NULL) {
fprintf(stderr, "error: cannot find Contact in this "
"redirect:\n%s\n", rec);
exit_code(3, __PRETTY_FUNCTION__, "missing Contact header in reply");
}
/* correct our request */
uri_replace(req, contact);
new_transaction(req, rep);
/* extract the needed information*/
rport = 0;
address = 0;
parse_uri(contact, &uscheme, &uuser, &uhost, &rport);
if (!rport)
address = getsrvadr(uhost, &rport, &transport);
if (!address)
address = getaddress(uhost);
if (!address){
fprintf(stderr, "error: cannot determine host "
"address from Contact of redirect:"
"\n%s\n", rec);
exit_code(2, __PRETTY_FUNCTION__, "missing host in Contact header");
}
if (!rport) {
rport = 5060;
}
free(contact);
if (!outbound_proxy)
cdata.connected = set_target(tadr, address, rport, cdata.csock, cdata.connected);
}
else {
fprintf(stderr, "error: cannot handle this redirect:"
"\n%s\n", rec);
exit_code(2, __PRETTY_FUNCTION__, "unsupported redirect reply");
}
}
static inline unsigned long srv_ares(char *host, int *port, char *srv) {
int nfds, count, srvh_len;
char *srvh;
fd_set read_fds, write_fds;
struct timeval *tvp, tv;
caport = 0;
caadr = 0;
ca_tmpname = NULL;
dbg("starting ARES query\n");
srvh_len = strlen(host) + strlen(srv) + 2;
srvh = malloc(srvh_len);
if (srvh == NULL) {
printf("error: failed to allocate memory (%i) for ares query\n", srvh_len);
exit_code(2, __PRETTY_FUNCTION__, "memory allocation failure");
}
memset(srvh, 0, srvh_len);
strncpy(srvh, srv, strlen(srv));
memcpy(srvh + strlen(srv), ".", 1);
strcpy(srvh + strlen(srv) + 1, host);
dbg("hostname: '%s', len: %i\n", srvh, srvh_len);
ares_query(channel, srvh, CARES_CLASS_C_IN, CARES_TYPE_SRV, cares_callback, (char *) NULL);
dbg("ares_query finished, waiting for result...\n");
/* wait for query to complete */
while (1) {
FD_ZERO(&read_fds);
FD_ZERO(&write_fds);
nfds = ares_fds(channel, &read_fds, &write_fds);
if (nfds == 0)
break;
tvp = ares_timeout(channel, NULL, &tv);
count = select(nfds, &read_fds, &write_fds, NULL, tvp);
if (count < 0 && errno != EINVAL) {
perror("ares select");
exit_code(2, __PRETTY_FUNCTION__, "ares DNS resolution failure");
}
ares_process(channel, &read_fds, &write_fds);
}
dbg("ARES answer processed\n");
*port = caport;
if (caadr == 0 && ca_tmpname != NULL) {
caadr = getaddress(ca_tmpname);
}
if (ca_tmpname != NULL)
free(ca_tmpname);
free(srvh);
return caadr;
}
/* check for the existence of a Max-Forwards header field. if its
present it sets it to the given value, if not it will be inserted.*/
void set_maxforw(char *mes){
char *max, *backup, *crlfi;
if ((max=STRSTR(mes, "MAX_FRW_STR"))==NULL){
/* no max-forwards found so insert it after the first line*/
max=strchr(mes,'\n');
if (!max) {
printf("failed to find newline\n");
exit_code(254);
}
max++;
backup=malloc(strlen(max)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, max, (size_t)(strlen(max)+1));
snprintf(max, MAX_FRW_STR_LEN+6, "%s%i\r\n", MAX_FRW_STR, maxforw);
max=strchr(max,'\n');
max++;
strncpy(max, backup, strlen(backup)+1);
free(backup);
if (verbose > 1)
printf("Max-Forwards %i inserted into header\n", maxforw);
if (verbose > 2)
printf("New message with inserted Max-Forwards:\n%s\n", mes);
}
else{
/* found max-forwards => overwrite the value with maxforw*/
crlfi=strchr(max,'\n');
crlfi++;
backup=malloc(strlen(crlfi)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, crlfi, strlen(crlfi)+1);
crlfi=max + MAX_FRW_STR_LEN;
snprintf(crlfi, 6, "%i\r\n", maxforw);
crlfi=strchr(max,'\n');
crlfi++;
strncpy(crlfi, backup, strlen(backup)+1);
free(backup);
if (verbose > 1)
printf("Max-Forwards set to %i\n", maxforw);
if (verbose > 2)
printf("New message with changed Max-Forwards:\n%s\n", mes);
}
}
void init_con_data(struct sipsak_con_data *cd) {
switch(address.af) {
case AF_INET:
#ifdef DEBUG
printf("ipv4 bind\n");
#endif
memset(&cd->adr, 0, sizeof(struct sockaddr_in));
cd->in_adr.sin_family = AF_INET;
cd->in_adr.sin_addr.s_addr = htonl( INADDR_ANY);
cd->in_adr.sin_port = htons((short)lport);
break;
case AF_INET6:
#ifdef DEBUG
printf("ipv6 bind\n");
#endif
memset(&cd->adr, 0, sizeof(struct sockaddr_in6));
cd->in6_adr.sin6_family = AF_INET6;
cd->in6_adr.sin6_addr = in6addr_any;
cd->in6_adr.sin6_port = htons((short)lport);
break;
default:
fprintf(stderr, "invalid address family: %d\n", cd->in_adr.sin_family);
exit_code(2);
}
}
void send_message(char* mes, struct sipsak_con_data *cd,
struct sipsak_counter *sc, struct sipsak_sr_time *srt) {
struct timezone tz;
int ret;
if (cd->dontsend == 0) {
if (verbose > 2) {
printf("\nrequest:\n%s", mes);
}
/* lets fire the request to the server and store when we did */
if (cd->csock == -1) {
ret = sendto(cd->usock, mes, strlen(mes), 0, (struct sockaddr *) &(cd->adr), sizeof(struct sockaddr));
}
else {
ret = send(cd->csock, mes, strlen(mes), 0);
}
(void)gettimeofday(&(srt->sendtime), &tz);
if (ret==-1) {
printf("\n");
perror("send failure");
exit_code(2);
}
#ifdef HAVE_INET_NTOP
if (verbose > 2) {
printf("\nsend to: %s:%s:%i\n", transport_str, target_dot, rport);
}
#endif
sc->send_counter++;
}
else {
cd->dontsend = 0;
}
}
void print_long_help() {
print_version();
printf(
" --help displays this help message\n"
" --version prints version string only\n"
" --filename=FILE the file which contains the SIP message to send\n"
" use - for standard input\n"
" --no-crlf de-activate CR (\\r) insertion\n"
" --sip-uri=SIPURI the destination server uri in form\n"
" sip:[user@]servername[:port]\n"
" --traceroute activates the traceroute mode\n"
);
printf(" --usrloc-mode activates the usrloc mode\n"
" --invite-mode simulates a successful calls with itself\n"
" --message-mode sends messages to itself\n"
" --contact=SIPURI use the given uri as Contact in REGISTER\n"
" --appendix-begin=NUMBER the starting number appendix to the user name (default: 0)\n"
" --appendix-end=NUMBER the ending numer of the appendix to the user name\n"
" --sleep=NUMBER sleep number ms before sending next request\n"
);
printf(" --expires=NUMBER the expires header field value (default: 15)\n"
" --remove-bindings=NUMBER activates randomly removing of user bindings\n"
" --flood-mode activates the flood mode\n"
" --random-mode activates the random modues (dangerous)\n"
" --trash-chars=NUMBER the maximum number of trashed character in random mode\n"
" (default: request length)\n"
);
printf(" --local-port=PORT the local port to use (default: any)\n"
" --remote-port=PORT the remote port to use (default: 5060)\n"
" --outbound-proxy=HOSTNAME request target (outbound proxy)\n"
" --hostname=HOSTNAME overwrites the local hostname in all headers\n"
" --max-forwards=NUMBER the value for the max-forwards header field\n"
" --numeric use FQDN instead of IPs in the Via-Line\n");
printf(" --processes=NUMBER Divide the workflow among the number of processes\n"
" --auth-username=STRING username for authentication\n"
);
printf(" --no-via deactivate the insertion of a Via-Line\n"
" --password=PASSWORD password for authentication\n"
" (if omitted password=username)\n"
" --ignore-redirects ignore redirects\n"
" --verbose each v produces more verbosity (max. 3)\n"
" --extract-ip extract IP from the warning in reply\n"
" --replace-string=STRING replacement for a special mark in the message\n"
" --replace activates replacement of variables\n"
);
printf(" --nagios-code returns exit codes Nagios compliant\n"
" --nagios-warn=NUMBER return Nagios warning if retrans > number\n"
" --message-body=STRING send a message with string as body\n"
" --disposition=STRING Content-Disposition value\n"
" --search=REGEXP search for a RegExp in replies and return error\n"
" on failfure\n"
" --timing print the timing informations at the end\n"
" --symmetric send and received on the same port\n"
" --from=SIPURI use the given uri as From in MESSAGE\n"
" --timeout-factor=NUMBER timeout multiplier for INVITE transactions\n"
" and reliable transports (default: 64)\n"
" --transport=STRING specify transport to be used\n"
);
exit_code(0);
}
/* replace the Content-Length value with the given value */
void set_cl(char* mes, int contentlen) {
char *cl, *cr, *backup;
if ((cl=STRSTR(ack, CON_LEN_STR)) == NULL &&
(cl=STRSTR(ack, CON_LEN_SHORT_STR)) == NULL) {
printf("missing Content-Lenght in message\n");
return;
}
cr = strchr(cl, '\n');
cr++;
backup=malloc(strlen(cr)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, cr, strlen(cr)+1);
if (*cl == 'C')
cr=cl + CON_LEN_STR_LEN;
else
cr=cl + 3;
snprintf(cr, 6, "%i\r\n", contentlen);
cr=strchr(cr, '\n');
cr++;
strncpy(cr, backup, strlen(backup)+1);
free(backup);
if (verbose > 1)
printf("Content-Length set to %i\n", contentlen);
if (verbose > 2)
printf("New message with changed Content-Length:\n%s\n", mes);
}
/* tryes to find the warning header filed and prints out the IP */
void warning_extract(char *message)
{
char *warning, *end, *mid, *server;
int srvsize;
if ((warning=STRSTR(message, "Warning:"))==NULL) {
if (verbose > 0) printf("'no Warning header found' ");
else printf("?? ");
return;
}
end=strchr(warning, '"');
end--;
warning=strchr(warning, '3');
warning=warning+4;
mid=strchr(warning, ':');
if (mid) end=mid;
srvsize=end - warning + 1;
server=malloc((size_t)srvsize);
if (!server) {
printf("failed to allocate memory\n");
exit_code(255);
}
memset(server, 0, (size_t)srvsize);
server=strncpy(server, warning, (size_t)(srvsize - 1));
printf("%s ", server);
free(server);
}
unsigned long getaddress(char *host) {
struct hostent* pent;
long addr;
if (strlen(host) == 0) {
return 0;
}
if (is_ip(host)) {
return inet_addr(host);
}
/* try the system's own resolution mechanism for dns lookup:
required only for domain names.
in spite of what the rfc2543 :D Using SRV DNS Records recommends,
we are leaving it to the operating system to do the name caching.
this is an important implementational issue especially in the light
dynamic dns servers like dynip.com or dyndns.com where a dial
ip address is dynamically assigned a sub domain like farhan.dynip.com
although expensive, this is a must to allow OS to take
the decision to expire the DNS records as it deems fit.
*/
pent = gethostbyname(host);
if (!pent) {
printf("'%s' is unresolveable\n", host);
exit_code(2, __PRETTY_FUNCTION__, "hostname is not resolveable");
}
addr = *(uint32_t *) (pent->h_addr);
return addr;
}
void increase_cseq(char *message)
{
int cs;
char *cs_s, *eol, *backup;
cs = cseq(message);
if ((cs < 1) && (verbose > 1)) {
printf("CSeq increase failed because unable to extract CSeq number\n");
return;
}
cs++;
cs_s=STRSTR(message, CSEQ_STR);
if (cs_s) {
cs_s+=6;
eol=strchr(cs_s, ' ');
eol++;
backup=malloc(strlen(eol)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, eol, (size_t)(strlen(eol)+1));
snprintf(cs_s, 11, "%i ", cs);
cs_s+=strlen(cs_s);
strncpy(cs_s, backup, strlen(backup));
free(backup);
}
else if (verbose > 1)
printf("'CSeq' not found in message\n");
}
/* prints out some usage help and exits */
void print_help() {
print_version();
printf(
" -h displays this help message\n"
" -V prints version string only\n"
" -f FILE the file which contains the SIP message to send\n"
" use - for standard input\n"
" -L de-activate CR (\\r) insertion in files\n"
" -s SIPURI the destination server uri in form\n"
" sip:[user@]servername[:port]\n"
" -T activates the traceroute mode\n"
" -U activates the usrloc mode\n"
" -I simulates a successful calls with itself\n"
" -M sends messages to itself\n"
);
printf(
" -C SIPURI use the given uri as Contact in REGISTER\n"
" -b NUMBER the starting number appendix to the user name (default: 0)\n"
" -e NUMBER the ending numer of the appendix to the user name\n"
" -o NUMBER sleep number ms before sending next request\n"
" -x NUMBER the expires header field value (default: 15)\n"
" -z activates randomly removing of user bindings\n"
" -F activates the flood mode\n"
);
printf(
" -c NUMBER the maximum CSeq number for flood mode (default: 2^31)\n"
" -R activates the random modues (dangerous)\n"
" -t NUMBER the maximum number of trashed character in random mode\n"
" (default: request length)\n"
" -l PORT the local port to use (default: any)\n"
" -r PORT the remote port to use (default: 5060)\n"
" -p HOSTNAME request target (outbound proxy)\n"
);
printf(
" -H HOSTNAME overwrites the local hostname in all headers\n"
" -m NUMBER the value for the max-forwards header field\n"
" -n use FQDN instead of IPs in the Via-Line\n"
" -i deactivate the insertion of a Via-Line\n"
" -a PASSWORD password for authentication\n"
" (if omitted password=\"\")\n"
" -u STRING Authentication username\n"
);
printf(
" -d ignore redirects\n"
" -v each v produces more verbosity (max. 3)\n"
" -w extract IP from the warning in reply\n"
" -g STRING replacement for a special mark in the message\n"
" -G activates replacement of variables\n"
" -N returns exit codes Nagios compliant\n"
" -q STRING search for a RegExp in replies and return error\n"
" on failure\n");
printf(" -W NUMBER return Nagios warning if retrans > number\n"
" -B STRING send a message with string as body\n"
" -O STRING Content-Disposition value\n"
" -P NUMBER Number of processes to start\n"
" -A print timing informations\n"
);
exit_code(0);
}
void Environment::halt_and_exit(STATE) {
halt(state);
int code = exit_code(state);
#ifdef ENABLE_LLVM
llvm::llvm_shutdown();
#endif
exit(code);
}
bool is_running(HANDLE process)
{
if (exit_code(process) == STILL_ACTIVE)
{
return wait(process, 0);
}
return false;
}
/* checks if the strings contains special double marks and then
* replace all occurences of this strings in the message */
void replace_strings(char *mes, char *strings) {
char *pos, *atr, *val, *repl, *end;
char sep;
pos=atr=val=repl = NULL;
#ifdef DEBUG
printf("replace_strings entered\nstrings: '%s'\n", strings);
#endif
if ((isalnum(*strings) != 0) &&
(isalnum(*(strings + strlen(strings) - 1)) != 0)) {
replace_string(req, "$replace$", replace_str);
}
else {
sep = *strings;
#ifdef DEBUG
printf("sep: '%c'\n", sep);
#endif
end = strings + strlen(strings);
pos = strings + 1;
while (pos < end) {
atr = pos;
pos = strchr(atr, sep);
if (pos != NULL) {
*pos = '\0';
val = pos + 1;
pos = strchr(val, sep);
if (pos != NULL) {
*pos = '\0';
pos++;
}
}
#ifdef DEBUG
printf("atr: '%s'\nval: '%s'\n", atr, val);
#endif
if ((atr != NULL) && (val != NULL)) {
repl = str_alloc(strlen(val) + 3);
if (repl == NULL) {
printf("failed to allocate memory\n");
exit_code(2);
}
sprintf(repl, "$%s$", atr);
replace_string(mes, repl, val);
free(repl);
}
#ifdef DEBUG
printf("pos: '%s'\n", pos);
#endif
}
}
#ifdef DEBUG
printf("mes:\n'%s'\n", mes);
#endif
}
/* takes care of replies in the readntrash mode */
void handle_randtrash()
{
/* in randomzing trash we are expexting 4?? error codes
everything else should not be normal */
if (regexec(&(regexps.errexp), rec, 0, 0, 0) == REG_NOERROR) {
if (verbose > 2)
printf("received:\n%s\n", rec);
if (verbose > 1) {
printf("received expected 4xx ");
if (warning_ext == 1) {
printf ("from ");
warning_extract(rec);
printf("\n");
}
else {
printf("\n");
}
}
}
else {
fprintf(stderr, "warning: did not received 4xx\n");
if (verbose > 1)
printf("sended:\n%s\nreceived:\n%s\n", req, rec);
}
if (cseq_counter == nameend) {
if (counters.randretrys == 0) {
printf("random end reached. server survived :) respect!\n");
exit_code(0, __PRETTY_FUNCTION__, NULL);
}
else {
printf("maximum sendings reached but did not "
"get a response on this request:\n%s\n", req);
log_message(req);
exit_code(3, __PRETTY_FUNCTION__, "missing reply on trashed request");
}
}
else {
trash_random(req);
}
}
/* tries to convert the given string into an integer. it strips
* white-spaces and exits if an error happens */
int str_to_int(char *num)
{
int ret;
#ifdef HAVE_STRTOL
errno = 0;
ret = strtol(num, NULL, 10);
if (errno == EINVAL || errno == ERANGE) {
printf("%s\n", num);
perror("integer converting error");
exit_code(2);
}
#else
char backup;
int len = strlen(num);
char *start = num;
char *end = num + len;
while (!isdigit(*start) && isspace(*start) && start < end)
start++;
end = start;
end++;
while (end < num + len && *end != '\0' && !isspace(*end))
end++;
backup = *end;
*end = '\0';
if (!is_number(start)) {
fprintf(stderr, "error: string is not a number: %s\n", start);
exit_code(2);
}
ret = atoi(start);
*end = backup;
if (ret <= 0) {
fprintf(stderr, "error: failed to convert string to integer: %s\n", num);
exit_code(2);
}
#endif
return ret;
}
/* Finds the SRV records for the given host. It returns the target IP
* address and fills the port and transport if a suitable SRV record
* exists. Otherwise it returns 0. The function follows 3263: first
* TLS, then TCP and finally UDP. */
int getsrvadr(char *host, struct addrinfo *res) {
int ret = -1;
#ifdef HAVE_SVR
#ifdef HAVE_CARES_H
int status;
int optmask = ARES_OPT_FLAGS;
struct ares_options options;
options.flags = ARES_FLAG_NOCHECKRESP;
options.servers = NULL;
options.nservers = 0;
status = ares_init_options(&channel, &options, optmask);
if (status != ARES_SUCCESS) {
printf("error: failed to initialize ares\n");
exit_code(2, __PRETTY_FUNCTION__, "failed to init ares lib");
}
#endif
#ifdef WITH_TLS_TRANSP
printf("TLS transport not yet supported\n");
exit_code(2);
#endif
ret = getsrvaddress(host, service, SRV_SIP_TCP, SIP_TCP_TRANSPORT, res);
if (ret >= 0) {
if (verbose > 1)
printf("using SRV record: %s.%s:%i\n", SRV_SIP_TLS, host, srvport);
}
else {
ret = getsrvaddress(host, service, SRV_SIP_UDP, SIP_UDP_TRANSPORT, res);
if (ret >= 0) {
if (verbose > 1)
printf("using SRV record: %s.%s:%s\n", SRV_SIP_UDP, host, service);
}
}
#ifdef WITH_TLS_TRANSP
}
/* replaces the uri in first line of mes with the other uri */
void uri_replace(char *mes, char *uri)
{
char *foo, *backup;
foo=strchr(mes, '\n');
if (!foo) {
printf("failed to find newline\n");
exit_code(254);
}
foo++;
backup=malloc(strlen(foo)+1);
if (!backup) {
printf("failed to allocate memory\n");
exit_code(255);
}
strncpy(backup, foo, strlen(foo)+1);
foo=STRSTR(mes, "sip");
strncpy(foo, uri, strlen(uri));
strncpy(foo+strlen(uri), SIP20_STR, SIP20_STR_LEN);
strncpy(foo+strlen(uri)+SIP20_STR_LEN, backup, strlen(backup)+1);
free(backup);
if (verbose > 2)
printf("Message with modified uri:\n%s\n", mes);
}
/* tries to allocate the given size of memory and sets it all to zero.
* if the allocation fails it exits */
void *str_alloc(size_t size) {
char *ptr;
#ifdef HAVE_CALLOC
ptr = calloc(1, size);
#else
ptr = malloc(size);
#endif
if (ptr == NULL) {
fprintf(stderr, "error: memory allocation failed\n");
exit_code(255, __PRETTY_FUNCTION__, "memory allocation failure");
}
#ifndef HAVE_CALLOC
memset(ptr, 0, size);
#endif
return ptr;
}
/* sipmly swappes the content of the two buffers */
void swap_buffers(char *fst, char *snd) {
char *tmp;
if (fst == snd)
return;
tmp = malloc(strlen(fst)+1);
if (!tmp) {
printf("failed to allocate memory\n");
exit_code(255);
}
memset(tmp, 0, strlen(fst)+1);
strcpy(tmp, fst);
strcpy(fst, snd);
strcpy(snd, tmp);
free(tmp);
}
long getaddress(char *host)
{
int i=0;
int dotcount=0;
char *p = host;
struct hostent* pent;
long l, *lp;
/*try understanding if this is a valid ip address
we are skipping the values of the octets specified here.
for instance, this code will allow 952.0.320.567 through*/
while (*p != '\0')
{
for (i = 0; i < 3; i++, p++)
if (isdigit((int)*p) == 0)
break;
if (*p != '.')
break;
p++;
dotcount++;
}
/* three dots with upto three digits in before, between and after ? */
if (dotcount == 3 && i > 0 && i <= 3)
return inet_addr(host);
/* try the system's own resolution mechanism for dns lookup:
required only for domain names.
inspite of what the rfc2543 :D Using SRV DNS Records recommends,
we are leaving it to the operating system to do the name caching.
this is an important implementational issue especially in the light
dynamic dns servers like dynip.com or dyndns.com where a dial
ip address is dynamically assigned a sub domain like farhan.dynip.com
although expensive, this is a must to allow OS to take
the decision to expire the DNS records as it deems fit.
*/
pent = gethostbyname(host);
if (!pent) {
printf("'%s' is unresolveable\n", host);
exit_code(2);
}
lp = (long *) (pent->h_addr);
l = *lp;
return l;
}
//**********************************************************************************
//
//**********************************************************************************
CModalMessageBox::eExitCode CModalMessageBox::Show()
{
CProcess::Pause( true );
while ( 1 )
{
eExitCode exit_code( EXIT_NULL );
CFrameWork::Process();
if ( m_bExitCross == true && CInput::IsButtonClicked( CInput::CROSS ) == true )
{
exit_code = EXIT_CROSS;
}
if ( m_bExitCircle == true && CInput::IsButtonClicked( CInput::CIRCLE ) == true )
{
exit_code = EXIT_CIRCLE;
}
if ( m_bExitSquare == true && CInput::IsButtonClicked( CInput::SQUARE ) == true )
{
exit_code = EXIT_SQUARE;
}
if ( m_bExitTriangle == true && CInput::IsButtonClicked( CInput::TRIANGLE ) == true )
{
exit_code = EXIT_TRIANGLE;
}
//
// Have we clicked an exit button?
//
if ( exit_code != EXIT_NULL )
{
SetVisible( false );
CProcess::Pause( false );
return exit_code;
}
}
return EXIT_TRIANGLE;
}
void check_socket_error(int socket, int size) {
struct pollfd sockerr;
int ret = 0;
/* lets see if we at least received an icmp error */
sockerr.fd=socket;
sockerr.events=POLLERR;
ret = poll(&sockerr, 1, 10);
if (ret==1) {
if (sockerr.revents && POLLERR) {
recvfrom(socket, recv, size, 0, NULL, 0);
printf("\n");
perror("send failure");
if (randtrash == 1)
printf ("last message before send failure:\n%s\n", req);
exit_code(3);
}
}
}