int
__gnat_safe_getservbyport (int port, const char *proto,
struct servent *ret, char *buf, size_t buflen)
{
struct servent *rh;
int ri;
#if defined(__linux__) || defined(__GLIBC__) || defined(__rtems__)
(void) getservbyport_r (port, proto, ret, buf, buflen, &rh);
#else
rh = getservbyport_r (port, proto, ret, buf, buflen);
#endif
ri = (rh == NULL) ? -1 : 0;
return ri;
}
int getservbyport_r(int port, const char *prots,
struct servent *se, char *buf, size_t buflen, struct servent **res)
{
int i;
struct sockaddr_in sin = {
.sin_family = AF_INET,
.sin_port = port,
};
if (!prots) {
int r = getservbyport_r(port, "tcp", se, buf, buflen, res);
if (r) r = getservbyport_r(port, "udp", se, buf, buflen, res);
return r;
}
*res = 0;
/* Align buffer */
i = (uintptr_t)buf & sizeof(char *)-1;
if (!i) i = sizeof(char *);
if (buflen < 3*sizeof(char *)-i)
return ERANGE;
buf += sizeof(char *)-i;
buflen -= sizeof(char *)-i;
if (strcmp(prots, "tcp") && strcmp(prots, "udp")) return EINVAL;
se->s_port = port;
se->s_proto = (char *)prots;
se->s_aliases = (void *)buf;
buf += 2*sizeof(char *);
buflen -= 2*sizeof(char *);
se->s_aliases[1] = 0;
se->s_aliases[0] = se->s_name = buf;
switch (getnameinfo((void *)&sin, sizeof sin, 0, 0, buf, buflen,
strcmp(prots, "udp") ? 0 : NI_DGRAM)) {
case EAI_MEMORY:
case EAI_SYSTEM:
return ENOMEM;
default:
return ENOENT;
case 0:
break;
}
*res = se;
return 0;
}
static char *tcp_service_name(int port)
{
#ifdef __linux__
int r;
struct servent result_buf;
struct servent *result;
char buf[2048];
r = getservbyport_r(htons(port), "tcp", &result_buf,buf, sizeof(buf), &result);
/* ignore ERANGE - if the result can't fit in 2k, just return unknown */
if (r != 0 || result == NULL)
return "unknown";
return strdup(result_buf.s_name);
#else
struct servent *result;
result = getservbyport(htons((unsigned short)port), "tcp");
if (result == NULL)
return "unknown";
return strdup(result->s_name);
#endif
}
/* libc_hidden_proto(getservbyport) */
struct servent * getservbyport(int port, const char *proto)
{
struct servent *result;
__initbuf();
getservbyport_r(port, proto, &serv, servbuf, SBUFSIZE, &result);
return result;
}
/* *********************************************************************** */
int NPSL_GetServByPortBasic(int serv_port, const char *serv_proto,
NPSL_SERVENT *serv_ent_ptr, void *serv_ent_buffer_ptr,
unsigned int serv_ent_buffer_length, unsigned int *required_length,
char *error_text)
{
int return_code = NPSL_SUCCESS;
NPSL_SERVENT *tmp_ent_ptr;
if (required_length != NULL)
*required_length = 0;
if ((serv_proto != NULL) && (!(*serv_proto))) {
if (error_text != NULL)
strcpy(error_text,
"The 'serv_proto' parameter is not 'NULL', but is an empty string.");
return_code = NPSL_FAILURE;
}
else if ((return_code = NPSL_CheckServEntParams(serv_ent_ptr,
serv_ent_buffer_ptr, serv_ent_buffer_length, error_text)) !=
NPSL_SUCCESS)
;
else {
int tmp_port = COMPAT_CAST_static(int,
ntohs(COMPAT_CAST_static(unsigned short, serv_port)));
#if NPSL_HAS_GETSERVBYPORT_R
if ((tmp_ent_ptr = getservbyport_r(tmp_port, serv_proto,
serv_ent_ptr, serv_ent_buffer_ptr,
((int) serv_ent_buffer_length))) == NULL) {
if (error_text != NULL) {
sprintf(error_text,
"%s '%s()' for service port '%d', protocol '%-.127s': ",
"Unable to get service entry with", "getservbyport_r",
serv_port, (serv_proto != NULL) ? serv_proto : "*NULL*");
NPSL_AppendLastErrorString(0, NPSL_MAX_ERROR_TEXT, error_text);
}
return_code = NPSL_SUPP_MapLastError();
}
#else
if ((tmp_ent_ptr = getservbyport(tmp_port, serv_proto)) == NULL) {
if (error_text != NULL) {
sprintf(error_text,
"%s '%s()' for service port '%d', protocol '%-.127s': ",
"Unable to get service entry with", "getservbyport",
serv_port, (serv_proto != NULL) ? serv_proto : "*NULL*");
NPSL_AppendLastErrorString(0, NPSL_MAX_ERROR_TEXT, error_text);
}
return_code = NPSL_SUPP_MapLastError();
}
else
return_code = NPSL_CopyServEntFlatBasic(tmp_ent_ptr, serv_ent_ptr,
serv_ent_buffer_ptr, serv_ent_buffer_length, required_length,
error_text);
#endif // #if NPSL_HAS_GETSERVBYPORT_R
}
return(return_code);
}
struct servent *
getservbyport(int port, const char *proto)
{
struct servent *s;
mutex_lock(&_servent_mutex);
s = getservbyport_r(port, proto, &_servent_data.serv, &_servent_data);
mutex_unlock(&_servent_mutex);
return (s);
}
struct servent *
getservbyport(int port, const char *proto)
{
extern struct servent_data _servent_data;
static struct servent serv;
if (getservbyport_r(port, proto, &serv, &_servent_data) != 0)
return (NULL);
return (&serv);
}
/*
* Set the service name on the result buffer is not NULL.
* return (-1) if the buffer is too small.
*/
static int
_servname(struct asr_query *as)
{
struct servent s;
#ifdef HAVE_STRUCT_SERVENT_DATA
struct servent_data sd;
#endif
int port, r;
char *buf = as->as.ni.servname;
size_t buflen = as->as.ni.servnamelen;
if (as->as.ni.servname == NULL || as->as.ni.servnamelen == 0)
return (0);
if (as->as.ni.sa.sa.sa_family == AF_INET)
port = as->as.ni.sa.sain.sin_port;
else
port = as->as.ni.sa.sain6.sin6_port;
if (!(as->as.ni.flags & NI_NUMERICSERV)) {
#ifdef HAVE_STRUCT_SERVENT_DATA
memset(&sd, 0, sizeof (sd));
#endif
#ifdef HAVE_GETSERVBYPORT_R_4_ARGS
r = getservbyport_r(port,
(as->as.ni.flags & NI_DGRAM) ? "udp" : "tcp",
&s, &sd);
#else
r = -1;
#endif
if (r != -1) {
r = strlcpy(buf, s.s_name, buflen) >= buflen;
#ifdef HAVE_ENDSERVENT_R
endservent_r(&sd);
#endif
return (r ? -1 : 0);
}
}
r = snprintf(buf, buflen, "%u", ntohs(port));
if (r == -1 || r >= (int)buflen)
return (-1);
return (0);
}
static int
do_ipv46(char *host, size_t hostlen, char *serv, size_t servlen,
void *aptr, size_t alen, int family, int port)
{
struct hostent *hptr, hent;
struct servent *sptr, sent;
char hentbuf[HENTBUFSIZ];
if (hostlen > 0) {
#ifdef REENTRANT
hptr = gethostbyaddr_r(aptr, alen, family,
&hent, hentbuf, HENTBUFSIZ, &h_errno);
#else
hptr = gethostbyaddr(aptr, alen, family);
#endif
if (hptr != NULL && hptr->h_name != NULL)
strncpy(host, hptr->h_name, hostlen);
else
return(1);
}
if (servlen > 0) {
/*
* Notice that we do not have enough information to pass a
* "protocol" argument to getservbyport(), so the assumption
* is that the protocol (TCP or UDP) does not matter.
*/
#ifdef REENTRANT
sptr = getservbyport_r(port, NULL,
&sent, hentbuf, HENTBUFSIZ);
#else
sptr = getservbyport(port, NULL);
#endif
if (sptr != NULL && sptr->s_name != NULL)
strncpy(serv, sptr->s_name, servlen);
else
return(1);
}
return(0);
}
static gboolean
tf_getent_services(gchar *key, gchar *member_name, GString *result)
{
struct servent serv, *res;
gint64 d;
gboolean is_num;
char buf[4096];
if ((is_num = parse_dec_number(key, &d)) == TRUE)
getservbyport_r((int)ntohs(d), NULL, &serv, buf, sizeof(buf), &res);
else
getservbyname_r(key, NULL, &serv, buf, sizeof(buf), &res);
if (res == NULL)
return TRUE;
if (is_num)
g_string_append(result, res->s_name);
else
g_string_append_printf(result, "%i", htons(res->s_port));
return TRUE;
}
/*
* Print the textual representation of the port set on "sa".
*
* If proto is not NULL, it is used as parameter to "getservbyport_r(3)" to
* return a service name. If it's not set, or if no matching service is found,
* it prints the portno.
*
* Return the total length of the string it tried to create or 0 if an error
* occured, in which case errno is set. On success, the constructed string
* is guaranteed to be NUL-terminated. Overflow must be detected by checking
* the returned size against buflen.
*/
static size_t
asr_print_port(const struct sockaddr *sa, const char *proto, char *buf, size_t buflen)
{
struct servent s;
struct servent_data sd;
int port, r, saved_errno;
size_t n;
switch(sa->sa_family) {
case AF_INET:
port = SA_IN(sa)->sin_port;
break;
case AF_INET6:
port = SA_IN6(sa)->sin6_port;
break;
default:
errno = EINVAL;
return (0);
}
if (proto) {
memset(&sd, 0, sizeof (sd));
saved_errno = errno;
if (getservbyport_r(port, proto, &s, &sd) != -1) {
n = strlcpy(buf, s.s_name, buflen);
endservent_r(&sd);
return (n);
}
errno = saved_errno;
}
r = snprintf(buf, buflen, "%u", ntohs(port));
if (r == -1) /* Actually, this can not happen */
return (0);
return (r);
}
static char *lookup_service(unsigned short port, int flags,
char *buf, size_t buflen)
{
const char *proto;
struct servent *sep;
#ifdef HAVE_GETSERVBYPORT_R
struct servent se;
#endif
char tmpbuf[4096];
if (port)
{
if (flags & ARES_NI_NUMERICSERV)
sep = NULL;
else
{
if (flags & ARES_NI_UDP)
proto = "udp";
else if (flags & ARES_NI_SCTP)
proto = "sctp";
else if (flags & ARES_NI_DCCP)
proto = "dccp";
else
proto = "tcp";
#ifdef HAVE_GETSERVBYPORT_R
sep = &se;
memset(tmpbuf, 0, sizeof(tmpbuf));
#if GETSERVBYPORT_R_ARGS == 6
if (getservbyport_r(port, proto, &se, (void *)tmpbuf, sizeof(tmpbuf), &sep) != 0)
sep = NULL;
#elif GETSERVBYPORT_R_ARGS == 5
sep = getservbyport_r(port, proto, &se, (void *)tmpbuf, sizeof(tmpbuf));
#elif GETSERVBYPORT_R_ARGS == 4
if (getservbyport_r(port, proto, &se, (void *)tmpbuf) != 0)
sep = NULL;
#else
/* Lets just hope the OS uses TLS! */
sep = getservbyport(port, proto);
#endif
#else
/* Lets just hope the OS uses TLS! */
#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
sep = getservbyport(port, (char*)proto);
#else
sep = getservbyport(port, proto);
#endif
#endif
}
if (sep && sep->s_name)
/* get service name */
strcpy(tmpbuf, sep->s_name);
else
/* get port as a string */
sprintf(tmpbuf, "%u", (unsigned int)ntohs(port));
if (strlen(tmpbuf) < buflen)
/* return it if buffer big enough */
strcpy(buf, tmpbuf);
else
/* avoid reusing previous one */
buf[0] = '\0';
return buf;
}
buf[0] = '\0';
return NULL;
}
void TcpSocket::getServicePort( struct servent * pServicePort, const std::string & pService ) const
{
//
// Initialise the service port details.
//
memset( pServicePort, 0, sizeof( struct servent ) );
//
// Port has been specified as a number so get all the relevant details
// using the port number.
//
if ( 0 != atoi( pService.c_str() ) )
{
struct servent *lvServicePtr;
#if defined( SOLARIS )
char lvServiceBuffer[1024];
memset( lvServiceBuffer, 0, sizeof( lvServiceBuffer ) );
lvServicePtr = getservbyport_r( atoi( pService.c_str() ), "tcp",
pServicePort,
lvServiceBuffer,
sizeof( lvServiceBuffer ) );
#else // !defined( SOLARIS )
lvServicePtr = getservbyport( atoi( pService.c_str() ), "tcp" );
#endif // !defined( SOLARIS )
if ( 0 != lvServicePtr )
{
memcpy( pServicePort, lvServicePtr, sizeof( struct servent ) );
}
else
{
pServicePort->s_port = htons( atoi( pService.c_str() ) );
pServicePort->s_proto = "tcp";
}
}
//
// Port name specified.
//
else
{
if ( 0 == atoi( pService.c_str() ) )
{
struct servent *lvServicePtr;
#if defined( SOLARIS )
char lvServiceBuffer[1024];
memset( lvServiceBuffer, 0, sizeof( lvServiceBuffer ) );
lvServicePtr = getservbyname_r( pService.c_str(), "tcp",
pServicePort,
lvServiceBuffer,
sizeof( lvServiceBuffer ) );
#else // !defined( SOLARIS )
lvServicePtr = getservbyname( pService.c_str(), "tcp" );
#endif // !defined( SOLARIS )
if ( 0 == lvServicePtr )
{
//throw exception
std::ostringstream streamErrInfo;
std::string strErrorInfo;
streamErrInfo << "Unknown service";
strErrorInfo = streamErrInfo.str();
throw std::exception(strErrorInfo.c_str());
}
memcpy( pServicePort, lvServicePtr, sizeof( struct servent ) );
}
}
}
int
ServicePortNumberToName(unsigned short port, char *const dst, const size_t dsize, const int proto)
{
#if defined(HAVE_GETSERVBYNAME_R) && (defined(AIX) || defined(TRU64UNIX) || defined(DIGITAL_UNIX))
struct servent *sp;
#elif defined(HAVE_GETSERVBYNAME_R) && (defined(LINUX) || defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
struct servent se, *sp;
char spbuf[256];
#else
struct servent *sp;
#endif
sp = NULL;
#if defined(HAVE_GETSERVBYPORT_R) && (defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
if ((sp == NULL) && ((proto == 0) || (proto == 't')))
{
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyport_r((int) htons(port), "tcp", &se, spbuf, sizeof(spbuf));
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u')))
{
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyport_r((int) htons(port), "udp", &se, spbuf, sizeof(spbuf));
}
#elif defined(HAVE_GETSERVBYPORT_R) && defined(LINUX)
if ((sp == NULL) && ((proto == 0) || (proto == 't')))
{
memset(spbuf, 0, sizeof(spbuf));
if (getservbyport_r((int) htons(port), "tcp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u')))
{
memset(spbuf, 0, sizeof(spbuf));
if (getservbyport_r((int) htons(port), "udp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
#elif defined(HAVE_GETSERVBYPORT_R) && defined(AIX)
{
struct servent_data sed;
if ((sp == NULL) && ((proto == 0) || (proto == 't')))
{
memset(&sed, 0, sizeof(sed));
if (getservbyport_r((int) htons(port), "tcp", sp, &sed) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u')))
{
memset(&sed, 0, sizeof(sed));
if (getservbyport_r((int) htons(port), "udp", sp, &sed) != 0)
sp = NULL;
}
}
#else
/* Note: getservbyport is already threadsafe on: HP-UX, Tru64 */
if ((sp == NULL) && ((proto == 0) || (proto == 't')))
{
sp = getservbyport((int) htons(port), "tcp");
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u')))
{
sp = getservbyport((int) htons(port), "ucp");
}
#endif
if (sp != NULL)
{
strncpy(dst, sp->s_name, dsize);
dst[dsize - 1] = '\0';
return (1);
}
#ifdef HAVE_SNPRINTF
snprintf(dst, dsize,
#else
sprintf(dst,
#endif
"%u", (unsigned int) port);
return (0); /* error */
} /* ServicePortNumberToName */
