int ldap_pvt_get_hname(
const struct sockaddr *sa,
int len,
char *name,
int namelen,
char **err )
{
int rc;
#if defined( HAVE_GETNAMEINFO )
#if defined( LDAP_R_COMPILE )
ldap_pvt_thread_mutex_lock( &ldap_int_resolv_mutex );
#endif
rc = getnameinfo( sa, len, name, namelen, NULL, 0, 0 );
#if defined( LDAP_R_COMPILE )
ldap_pvt_thread_mutex_unlock( &ldap_int_resolv_mutex );
#endif
if ( rc ) *err = (char *)AC_GAI_STRERROR( rc );
return rc;
#else /* !HAVE_GETNAMEINFO */
char *addr;
int alen;
struct hostent *hp = NULL;
#ifdef HAVE_GETHOSTBYADDR_R
struct hostent hb;
int buflen=BUFSTART, h_errno;
char *buf=NULL;
#endif
#ifdef LDAP_PF_INET6
if (sa->sa_family == AF_INET6) {
struct sockaddr_in6 *sin = (struct sockaddr_in6 *)sa;
addr = (char *)&sin->sin6_addr;
alen = sizeof(sin->sin6_addr);
} else
#endif
if (sa->sa_family == AF_INET) {
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
addr = (char *)&sin->sin_addr;
alen = sizeof(sin->sin_addr);
} else {
rc = NO_RECOVERY;
*err = (char *)HSTRERROR( rc );
return rc;
}
#if defined( HAVE_GETHOSTBYADDR_R )
for(;buflen<BUFMAX;) {
if (safe_realloc( &buf, buflen )==NULL) {
*err = (char *)STRERROR( ENOMEM );
return ENOMEM;
}
#if (GETHOSTBYADDR_R_NARGS < 8)
hp=gethostbyaddr_r( addr, alen, sa->sa_family,
&hb, buf, buflen, &h_errno );
rc = (hp == NULL) ? -1 : 0;
#else
rc = gethostbyaddr_r( addr, alen, sa->sa_family,
&hb, buf, buflen,
&hp, &h_errno );
#endif
#ifdef NETDB_INTERNAL
if ((rc<0) &&
(h_errno==NETDB_INTERNAL) &&
(errno==ERANGE))
{
buflen*=2;
continue;
}
#endif
break;
}
if (hp) {
strncpy( name, hp->h_name, namelen );
} else {
*err = (char *)HSTRERROR( h_errno );
}
LDAP_FREE(buf);
#else /* HAVE_GETHOSTBYADDR_R */
#if defined( LDAP_R_COMPILE )
ldap_pvt_thread_mutex_lock( &ldap_int_resolv_mutex );
#endif
hp = gethostbyaddr( addr, alen, sa->sa_family );
if (hp) {
strncpy( name, hp->h_name, namelen );
rc = 0;
} else {
rc = h_errno;
*err = (char *)HSTRERROR( h_errno );
}
#if defined( LDAP_R_COMPILE )
ldap_pvt_thread_mutex_unlock( &ldap_int_resolv_mutex );
#endif
#endif /* !HAVE_GETHOSTBYADDR_R */
return rc;
#endif /* !HAVE_GETNAMEINFO */
}
/* port = 0 indicates AF_LOCAL */
static int slap_get_listener_addresses(
const char *host,
unsigned short port,
struct sockaddr ***sal)
{
struct sockaddr **sap;
#ifdef LDAP_PF_LOCAL
if ( port == 0 ) {
*sal = ch_malloc(2 * sizeof(void *));
if (*sal == NULL) {
return -1;
}
sap = *sal;
*sap = ch_malloc(sizeof(struct sockaddr_un));
if (*sap == NULL)
goto errexit;
sap[1] = NULL;
if ( strlen(host) >
(sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_get_listener_addresses: domain socket path (%s) "
"too long in URL\n", host, 0, 0 );
#else
Debug( LDAP_DEBUG_ANY,
"daemon: domain socket path (%s) too long in URL",
host, 0, 0);
#endif
goto errexit;
}
(void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
(*sap)->sa_family = AF_LOCAL;
strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
} else
#endif
{
#ifdef HAVE_GETADDRINFO
struct addrinfo hints, *res, *sai;
int n, err;
char serv[7];
memset( &hints, '\0', sizeof(hints) );
hints.ai_flags = AI_PASSIVE;
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = slap_inet4or6;
snprintf(serv, sizeof serv, "%d", port);
if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_get_listener_addresses: getaddrinfo failed: %s\n",
AC_GAI_STRERROR(err), 0, 0 );
#else
Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
AC_GAI_STRERROR(err), 0, 0);
#endif
return -1;
}
sai = res;
for (n=2; (sai = sai->ai_next) != NULL; n++) {
/* EMPTY */ ;
}
*sal = ch_calloc(n, sizeof(void *));
if (*sal == NULL) {
return -1;
}
sap = *sal;
*sap = NULL;
for ( sai=res; sai; sai=sai->ai_next ) {
if( sai->ai_addr == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_get_listener_addresses: "
"getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
"getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
#endif
freeaddrinfo(res);
goto errexit;
}
switch (sai->ai_family) {
# ifdef LDAP_PF_INET6
case AF_INET6:
*sap = ch_malloc(sizeof(struct sockaddr_in6));
if (*sap == NULL) {
freeaddrinfo(res);
goto errexit;
}
*(struct sockaddr_in6 *)*sap =
*((struct sockaddr_in6 *)sai->ai_addr);
break;
# endif
case AF_INET:
*sap = ch_malloc(sizeof(struct sockaddr_in));
if (*sap == NULL) {
freeaddrinfo(res);
goto errexit;
}
*(struct sockaddr_in *)*sap =
*((struct sockaddr_in *)sai->ai_addr);
break;
default:
*sap = NULL;
break;
}
if (*sap != NULL) {
(*sap)->sa_family = sai->ai_family;
sap++;
*sap = NULL;
}
}
freeaddrinfo(res);
#else
int i, n = 1;
struct in_addr in;
struct hostent *he = NULL;
if ( host == NULL ) {
in.s_addr = htonl(INADDR_ANY);
} else if ( !inet_aton( host, &in ) ) {
he = gethostbyname( host );
if( he == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_get_listener_addresses: invalid host %s\n", host, 0, 0 );
#else
Debug( LDAP_DEBUG_ANY,
"daemon: invalid host %s", host, 0, 0);
#endif
return -1;
}
for (n = 0; he->h_addr_list[n]; n++) ;
}
*sal = ch_malloc((n+1) * sizeof(void *));
if (*sal == NULL) {
return -1;
}
sap = *sal;
for ( i = 0; i<n; i++ ) {
sap[i] = ch_malloc(sizeof(struct sockaddr_in));
if (*sap == NULL) {
goto errexit;
}
(void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
sap[i]->sa_family = AF_INET;
((struct sockaddr_in *)sap[i])->sin_port = htons(port);
if (he) {
AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
} else {
AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
}
}
sap[i] = NULL;
#endif
}
return 0;
errexit:
slap_free_listener_addresses(*sal);
return -1;
}
