struct hostent *ei_gethostbyaddr_r(const char *addr,
int length,
int type,
struct hostent *hostp,
char *buffer,
int buflen,
int *h_errnop)
{
struct hostent *h = NULL;
/* use own func if sens function not available */
if (!sens_gethostbyaddr) {
h = my_gethostbyaddr_r(addr,length,type,hostp,buffer,buflen,h_errnop);
}
else {
if (!(h = sens_gethostbyaddr(addr,buffer,buflen))) {
/* sens returns status via errno */
*h_errnop = errno;
}
else {
*hostp = *h;
*h_errnop = 0;
}
}
return h;
}
struct hostent *ei_gethostbyaddr_r(const char *addr,
int length,
int type,
struct hostent *hostp,
char *buffer,
int buflen,
int *h_errnop)
{
#if (EI_THREADS == false)
/* threads disabled, no need to call reentrant function */
return gethostbyaddr(addr, length, type);
#else
#ifndef HAVE_GETHOSTBYNAME_R
return my_gethostbyaddr_r(addr,length,type,hostp,buffer,buflen,h_errnop);
#else
#if (defined(__GLIBC__) || (__FreeBSD_version >= 602000) || defined(__DragonFly__))
struct hostent *result;
gethostbyaddr_r(addr, length, type, hostp, buffer, buflen, &result,
h_errnop);
return result;
#else
return gethostbyaddr_r(addr,length,type,hostp,buffer,buflen,h_errnop);
#endif
#endif
#endif
}
int sockinetaddr::gethostname (char *hostname, size_t hostnameLen) const
{
hostname[0] = '\0';
if (sin_addr.s_addr == htonl(INADDR_ANY)) {
if (::gethostname(hostname, hostnameLen) == -1) {
SOCK_ERROR("sockinetaddr", "gethostname");
hostname[0] = '\0';
return -1;
}
return 0;
}
int hostErrno;
struct hostent hostResult;
char hostBuffer[4096];
hostent* hp;
if ((my_gethostbyaddr_r((const char*) &sin_addr, sizeof(sin_addr),
family(), &hostResult, hostBuffer, 2048, &hp,
&hostErrno) != 0) ||
(hp == 0))
{
sockinetaddr::herror("gethostbyaddr");
return -1;
}
if ((hp->h_name) && (strlen(hp->h_name) < hostnameLen)) {
strcpy (hostname, hp->h_name);
return 0;
}
return -1;
}
