2483 lines
70 KiB
C
2483 lines
70 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "primpl.h"
|
|
|
|
#include <string.h>
|
|
|
|
#if defined(LINUX)
|
|
#include <sys/un.h>
|
|
#endif
|
|
|
|
/*
|
|
* On Unix, the error code for gethostbyname() and gethostbyaddr()
|
|
* is returned in the global variable h_errno, instead of the usual
|
|
* errno.
|
|
*/
|
|
#if defined(XP_UNIX)
|
|
#if defined(_PR_NEED_H_ERRNO)
|
|
extern int h_errno;
|
|
#endif
|
|
#define _MD_GETHOST_ERRNO() h_errno
|
|
#else
|
|
#define _MD_GETHOST_ERRNO() _MD_ERRNO()
|
|
#endif
|
|
|
|
/*
|
|
* The meaning of the macros related to gethostbyname, gethostbyaddr,
|
|
* and gethostbyname2 is defined below.
|
|
* - _PR_HAVE_THREADSAFE_GETHOST: the gethostbyXXX functions return
|
|
* the result in thread specific storage. For example, AIX, HP-UX.
|
|
* - _PR_HAVE_GETHOST_R: have the gethostbyXXX_r functions. See next
|
|
* two macros.
|
|
* - _PR_HAVE_GETHOST_R_INT: the gethostbyXXX_r functions return an
|
|
* int. For example, Linux glibc.
|
|
* - _PR_HAVE_GETHOST_R_POINTER: the gethostbyXXX_r functions return
|
|
* a struct hostent* pointer. For example, Solaris.
|
|
*/
|
|
#if defined(_PR_NO_PREEMPT) || defined(_PR_HAVE_GETHOST_R) \
|
|
|| defined(_PR_HAVE_THREADSAFE_GETHOST)
|
|
#define _PR_NO_DNS_LOCK
|
|
#endif
|
|
|
|
#if defined(_PR_NO_DNS_LOCK)
|
|
#define LOCK_DNS()
|
|
#define UNLOCK_DNS()
|
|
#else
|
|
PRLock *_pr_dnsLock = NULL;
|
|
#define LOCK_DNS() PR_Lock(_pr_dnsLock)
|
|
#define UNLOCK_DNS() PR_Unlock(_pr_dnsLock)
|
|
#endif /* defined(_PR_NO_DNS_LOCK) */
|
|
|
|
/*
|
|
* Some platforms have the reentrant getprotobyname_r() and
|
|
* getprotobynumber_r(). However, they come in three flavors.
|
|
* Some return a pointer to struct protoent, others return
|
|
* an int, and glibc's flavor takes five arguments.
|
|
*/
|
|
|
|
#if defined(SOLARIS) || (defined(BSDI) && defined(_REENTRANT)) \
|
|
|| (defined(LINUX) && defined(_REENTRANT) \
|
|
&& defined(__GLIBC__) && __GLIBC__ < 2)
|
|
#define _PR_HAVE_GETPROTO_R
|
|
#define _PR_HAVE_GETPROTO_R_POINTER
|
|
#endif
|
|
|
|
#if defined(AIX4_3_PLUS) || (defined(AIX) && defined(_THREAD_SAFE)) \
|
|
|| (defined(HPUX10_10) && defined(_REENTRANT)) \
|
|
|| (defined(HPUX10_20) && defined(_REENTRANT)) \
|
|
|| defined(OPENBSD)
|
|
#define _PR_HAVE_GETPROTO_R
|
|
#define _PR_HAVE_GETPROTO_R_INT
|
|
#endif
|
|
|
|
#if __FreeBSD_version >= 602000
|
|
#define _PR_HAVE_GETPROTO_R
|
|
#define _PR_HAVE_5_ARG_GETPROTO_R
|
|
#endif
|
|
|
|
/* BeOS has glibc but not the glibc-style getprotobyxxx_r functions. */
|
|
#if (defined(__GLIBC__) && __GLIBC__ >= 2)
|
|
#define _PR_HAVE_GETPROTO_R
|
|
#define _PR_HAVE_5_ARG_GETPROTO_R
|
|
#endif
|
|
|
|
#if !defined(_PR_HAVE_GETPROTO_R)
|
|
PRLock* _getproto_lock = NULL;
|
|
#endif
|
|
|
|
#if defined(_PR_INET6_PROBE)
|
|
extern PRBool _pr_ipv6_is_present(void);
|
|
#endif
|
|
|
|
#define _PR_IN6_IS_ADDR_UNSPECIFIED(a) \
|
|
(((a)->pr_s6_addr32[0] == 0) && \
|
|
((a)->pr_s6_addr32[1] == 0) && \
|
|
((a)->pr_s6_addr32[2] == 0) && \
|
|
((a)->pr_s6_addr32[3] == 0))
|
|
|
|
#define _PR_IN6_IS_ADDR_LOOPBACK(a) \
|
|
(((a)->pr_s6_addr32[0] == 0) && \
|
|
((a)->pr_s6_addr32[1] == 0) && \
|
|
((a)->pr_s6_addr32[2] == 0) && \
|
|
((a)->pr_s6_addr[12] == 0) && \
|
|
((a)->pr_s6_addr[13] == 0) && \
|
|
((a)->pr_s6_addr[14] == 0) && \
|
|
((a)->pr_s6_addr[15] == 0x1U))
|
|
|
|
const PRIPv6Addr _pr_in6addr_any = {{{
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0
|
|
}
|
|
}
|
|
};
|
|
|
|
const PRIPv6Addr _pr_in6addr_loopback = {{{
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0x1U
|
|
}
|
|
}
|
|
};
|
|
/*
|
|
* The values at bytes 10 and 11 are compared using pointers to
|
|
* 8-bit fields, and not 32-bit fields, to make the comparison work on
|
|
* both big-endian and little-endian systems
|
|
*/
|
|
|
|
#define _PR_IN6_IS_ADDR_V4MAPPED(a) \
|
|
(((a)->pr_s6_addr32[0] == 0) && \
|
|
((a)->pr_s6_addr32[1] == 0) && \
|
|
((a)->pr_s6_addr[8] == 0) && \
|
|
((a)->pr_s6_addr[9] == 0) && \
|
|
((a)->pr_s6_addr[10] == 0xff) && \
|
|
((a)->pr_s6_addr[11] == 0xff))
|
|
|
|
#define _PR_IN6_IS_ADDR_V4COMPAT(a) \
|
|
(((a)->pr_s6_addr32[0] == 0) && \
|
|
((a)->pr_s6_addr32[1] == 0) && \
|
|
((a)->pr_s6_addr32[2] == 0))
|
|
|
|
#define _PR_IN6_V4MAPPED_TO_IPADDR(a) ((a)->pr_s6_addr32[3])
|
|
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
|
|
/*
|
|
* The _pr_QueryNetIfs() function finds out if the system has
|
|
* IPv4 or IPv6 source addresses configured and sets _pr_have_inet_if
|
|
* and _pr_have_inet6_if accordingly.
|
|
*
|
|
* We have an implementation using SIOCGIFCONF ioctl and a
|
|
* default implementation that simply sets _pr_have_inet_if
|
|
* and _pr_have_inet6_if to true. A better implementation
|
|
* would be to use the routing sockets (see Chapter 17 of
|
|
* W. Richard Stevens' Unix Network Programming, Vol. 1, 2nd. Ed.)
|
|
*/
|
|
|
|
static PRLock *_pr_query_ifs_lock = NULL;
|
|
static PRBool _pr_have_inet_if = PR_FALSE;
|
|
static PRBool _pr_have_inet6_if = PR_FALSE;
|
|
|
|
#undef DEBUG_QUERY_IFS
|
|
|
|
#if defined(AIX) \
|
|
|| (defined(DARWIN) && !defined(HAVE_GETIFADDRS))
|
|
|
|
/*
|
|
* Use SIOCGIFCONF ioctl on platforms that don't have routing
|
|
* sockets. Warning: whether SIOCGIFCONF ioctl returns AF_INET6
|
|
* network interfaces is not portable.
|
|
*
|
|
* The _pr_QueryNetIfs() function is derived from the code in
|
|
* src/lib/libc/net/getifaddrs.c in BSD Unix and the code in
|
|
* Section 16.6 of W. Richard Stevens' Unix Network Programming,
|
|
* Vol. 1, 2nd. Ed.
|
|
*/
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <net/if.h>
|
|
|
|
#ifdef DEBUG_QUERY_IFS
|
|
static void
|
|
_pr_PrintIfreq(struct ifreq *ifr)
|
|
{
|
|
PRNetAddr addr;
|
|
struct sockaddr *sa;
|
|
const char* family;
|
|
char addrstr[64];
|
|
|
|
sa = &ifr->ifr_addr;
|
|
if (sa->sa_family == AF_INET) {
|
|
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
|
|
family = "inet";
|
|
memcpy(&addr.inet.ip, &sin->sin_addr, sizeof(sin->sin_addr));
|
|
} else if (sa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
|
|
family = "inet6";
|
|
memcpy(&addr.ipv6.ip, &sin6->sin6_addr, sizeof(sin6->sin6_addr));
|
|
} else {
|
|
return; /* skip if not AF_INET or AF_INET6 */
|
|
}
|
|
addr.raw.family = sa->sa_family;
|
|
PR_NetAddrToString(&addr, addrstr, sizeof(addrstr));
|
|
printf("%s: %s %s\n", ifr->ifr_name, family, addrstr);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
_pr_QueryNetIfs(void)
|
|
{
|
|
int sock;
|
|
int rv;
|
|
struct ifconf ifc;
|
|
struct ifreq *ifr;
|
|
struct ifreq *lifr;
|
|
PRUint32 len, lastlen;
|
|
char *buf;
|
|
|
|
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
|
|
return;
|
|
}
|
|
|
|
/* Issue SIOCGIFCONF request in a loop. */
|
|
lastlen = 0;
|
|
len = 100 * sizeof(struct ifreq); /* initial buffer size guess */
|
|
for (;;) {
|
|
buf = (char *)PR_Malloc(len);
|
|
if (NULL == buf) {
|
|
close(sock);
|
|
return;
|
|
}
|
|
ifc.ifc_buf = buf;
|
|
ifc.ifc_len = len;
|
|
rv = ioctl(sock, SIOCGIFCONF, &ifc);
|
|
if (rv < 0) {
|
|
if (errno != EINVAL || lastlen != 0) {
|
|
close(sock);
|
|
PR_Free(buf);
|
|
return;
|
|
}
|
|
} else {
|
|
if (ifc.ifc_len == lastlen) {
|
|
break; /* success, len has not changed */
|
|
}
|
|
lastlen = ifc.ifc_len;
|
|
}
|
|
len += 10 * sizeof(struct ifreq); /* increment */
|
|
PR_Free(buf);
|
|
}
|
|
close(sock);
|
|
|
|
ifr = ifc.ifc_req;
|
|
lifr = (struct ifreq *)&ifc.ifc_buf[ifc.ifc_len];
|
|
|
|
while (ifr < lifr) {
|
|
struct sockaddr *sa;
|
|
int sa_len;
|
|
|
|
#ifdef DEBUG_QUERY_IFS
|
|
_pr_PrintIfreq(ifr);
|
|
#endif
|
|
sa = &ifr->ifr_addr;
|
|
if (sa->sa_family == AF_INET) {
|
|
struct sockaddr_in *sin = (struct sockaddr_in *) sa;
|
|
if (sin->sin_addr.s_addr != htonl(INADDR_LOOPBACK)) {
|
|
_pr_have_inet_if = PR_TRUE;
|
|
}
|
|
} else if (sa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
|
|
if (!IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr)
|
|
&& !IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
|
|
_pr_have_inet6_if = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
#ifdef _PR_HAVE_SOCKADDR_LEN
|
|
sa_len = PR_MAX(sa->sa_len, sizeof(struct sockaddr));
|
|
#else
|
|
switch (sa->sa_family) {
|
|
#ifdef AF_LINK
|
|
case AF_LINK:
|
|
sa_len = sizeof(struct sockaddr_dl);
|
|
break;
|
|
#endif
|
|
case AF_INET6:
|
|
sa_len = sizeof(struct sockaddr_in6);
|
|
break;
|
|
default:
|
|
sa_len = sizeof(struct sockaddr);
|
|
break;
|
|
}
|
|
#endif
|
|
ifr = (struct ifreq *)(((char *)sa) + sa_len);
|
|
}
|
|
PR_Free(buf);
|
|
}
|
|
|
|
#elif (defined(DARWIN) && defined(HAVE_GETIFADDRS)) || defined(FREEBSD) \
|
|
|| defined(NETBSD) || defined(OPENBSD)
|
|
|
|
/*
|
|
* Use the BSD getifaddrs function.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <ifaddrs.h>
|
|
#include <netinet/in.h>
|
|
|
|
#ifdef DEBUG_QUERY_IFS
|
|
static void
|
|
_pr_PrintIfaddrs(struct ifaddrs *ifa)
|
|
{
|
|
struct sockaddr *sa;
|
|
const char* family;
|
|
void *addrp;
|
|
char addrstr[64];
|
|
|
|
sa = ifa->ifa_addr;
|
|
if (sa->sa_family == AF_INET) {
|
|
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
|
|
family = "inet";
|
|
addrp = &sin->sin_addr;
|
|
} else if (sa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
|
|
family = "inet6";
|
|
addrp = &sin6->sin6_addr;
|
|
} else {
|
|
return; /* skip if not AF_INET or AF_INET6 */
|
|
}
|
|
inet_ntop(sa->sa_family, addrp, addrstr, sizeof(addrstr));
|
|
printf("%s: %s %s\n", ifa->ifa_name, family, addrstr);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
_pr_QueryNetIfs(void)
|
|
{
|
|
struct ifaddrs *ifp;
|
|
struct ifaddrs *ifa;
|
|
|
|
if (getifaddrs(&ifp) == -1) {
|
|
return;
|
|
}
|
|
for (ifa = ifp; ifa; ifa = ifa->ifa_next) {
|
|
struct sockaddr *sa;
|
|
|
|
#ifdef DEBUG_QUERY_IFS
|
|
_pr_PrintIfaddrs(ifa);
|
|
#endif
|
|
sa = ifa->ifa_addr;
|
|
if (sa->sa_family == AF_INET) {
|
|
struct sockaddr_in *sin = (struct sockaddr_in *) sa;
|
|
if (sin->sin_addr.s_addr != htonl(INADDR_LOOPBACK)) {
|
|
_pr_have_inet_if = 1;
|
|
}
|
|
} else if (sa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
|
|
if (!IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr)
|
|
&& !IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
|
|
_pr_have_inet6_if = 1;
|
|
}
|
|
}
|
|
}
|
|
freeifaddrs(ifp);
|
|
}
|
|
|
|
#else /* default */
|
|
|
|
/*
|
|
* Emulate the code in NSPR 4.2 or older. PR_GetIPNodeByName behaves
|
|
* as if the system had both IPv4 and IPv6 source addresses configured.
|
|
*/
|
|
static void
|
|
_pr_QueryNetIfs(void)
|
|
{
|
|
_pr_have_inet_if = PR_TRUE;
|
|
_pr_have_inet6_if = PR_TRUE;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* _PR_INET6 && _PR_HAVE_GETHOSTBYNAME2 */
|
|
|
|
void _PR_InitNet(void)
|
|
{
|
|
#if defined(XP_UNIX)
|
|
#ifdef HAVE_NETCONFIG
|
|
/*
|
|
* This one-liner prevents the endless re-open's and re-read's of
|
|
* /etc/netconfig on EACH and EVERY call to accept(), connect(), etc.
|
|
*/
|
|
(void)setnetconfig();
|
|
#endif
|
|
#endif
|
|
#if !defined(_PR_NO_DNS_LOCK)
|
|
_pr_dnsLock = PR_NewLock();
|
|
#endif
|
|
#if !defined(_PR_HAVE_GETPROTO_R)
|
|
_getproto_lock = PR_NewLock();
|
|
#endif
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
_pr_query_ifs_lock = PR_NewLock();
|
|
#endif
|
|
}
|
|
|
|
void _PR_CleanupNet(void)
|
|
{
|
|
#if !defined(_PR_NO_DNS_LOCK)
|
|
if (_pr_dnsLock) {
|
|
PR_DestroyLock(_pr_dnsLock);
|
|
_pr_dnsLock = NULL;
|
|
}
|
|
#endif
|
|
#if !defined(_PR_HAVE_GETPROTO_R)
|
|
if (_getproto_lock) {
|
|
PR_DestroyLock(_getproto_lock);
|
|
_getproto_lock = NULL;
|
|
}
|
|
#endif
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
if (_pr_query_ifs_lock) {
|
|
PR_DestroyLock(_pr_query_ifs_lock);
|
|
_pr_query_ifs_lock = NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
** Allocate space from the buffer, aligning it to "align" before doing
|
|
** the allocation. "align" must be a power of 2.
|
|
*/
|
|
static char *Alloc(PRIntn amount, char **bufp, PRIntn *buflenp, PRIntn align)
|
|
{
|
|
char *buf = *bufp;
|
|
PRIntn buflen = *buflenp;
|
|
|
|
if (align && ((long)buf & (align - 1))) {
|
|
PRIntn skip = align - ((ptrdiff_t)buf & (align - 1));
|
|
if (buflen < skip) {
|
|
return 0;
|
|
}
|
|
buf += skip;
|
|
buflen -= skip;
|
|
}
|
|
if (buflen < amount) {
|
|
return 0;
|
|
}
|
|
*bufp = buf + amount;
|
|
*buflenp = buflen - amount;
|
|
return buf;
|
|
}
|
|
|
|
typedef enum _PRIPAddrConversion {
|
|
_PRIPAddrNoConversion,
|
|
_PRIPAddrIPv4Mapped,
|
|
_PRIPAddrIPv4Compat
|
|
} _PRIPAddrConversion;
|
|
|
|
/*
|
|
** Convert an IPv4 address (v4) to an IPv4-mapped IPv6 address (v6).
|
|
*/
|
|
static void MakeIPv4MappedAddr(const char *v4, char *v6)
|
|
{
|
|
memset(v6, 0, 10);
|
|
memset(v6 + 10, 0xff, 2);
|
|
memcpy(v6 + 12, v4, 4);
|
|
}
|
|
|
|
/*
|
|
** Convert an IPv4 address (v4) to an IPv4-compatible IPv6 address (v6).
|
|
*/
|
|
static void MakeIPv4CompatAddr(const char *v4, char *v6)
|
|
{
|
|
memset(v6, 0, 12);
|
|
memcpy(v6 + 12, v4, 4);
|
|
}
|
|
|
|
/*
|
|
** Copy a hostent, and all of the memory that it refers to into
|
|
** (hopefully) stacked buffers.
|
|
*/
|
|
static PRStatus CopyHostent(
|
|
struct hostent *from,
|
|
char **buf,
|
|
PRIntn *bufsize,
|
|
_PRIPAddrConversion conversion,
|
|
PRHostEnt *to)
|
|
{
|
|
PRIntn len, na;
|
|
char **ap;
|
|
|
|
if (conversion != _PRIPAddrNoConversion
|
|
&& from->h_addrtype == AF_INET) {
|
|
PR_ASSERT(from->h_length == 4);
|
|
to->h_addrtype = PR_AF_INET6;
|
|
to->h_length = 16;
|
|
} else {
|
|
#if defined(_PR_INET6) || defined(_PR_INET6_PROBE)
|
|
if (AF_INET6 == from->h_addrtype) {
|
|
to->h_addrtype = PR_AF_INET6;
|
|
}
|
|
else
|
|
#endif
|
|
to->h_addrtype = from->h_addrtype;
|
|
to->h_length = from->h_length;
|
|
}
|
|
|
|
/* Copy the official name */
|
|
if (!from->h_name) {
|
|
return PR_FAILURE;
|
|
}
|
|
len = strlen(from->h_name) + 1;
|
|
to->h_name = Alloc(len, buf, bufsize, 0);
|
|
if (!to->h_name) {
|
|
return PR_FAILURE;
|
|
}
|
|
memcpy(to->h_name, from->h_name, len);
|
|
|
|
/* Count the aliases, then allocate storage for the pointers */
|
|
if (!from->h_aliases) {
|
|
na = 1;
|
|
} else {
|
|
for (na = 1, ap = from->h_aliases; *ap != 0; na++, ap++) {;} /* nothing to execute */
|
|
}
|
|
to->h_aliases = (char**)Alloc(
|
|
na * sizeof(char*), buf, bufsize, sizeof(char**));
|
|
if (!to->h_aliases) {
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
/* Copy the aliases, one at a time */
|
|
if (!from->h_aliases) {
|
|
to->h_aliases[0] = 0;
|
|
} else {
|
|
for (na = 0, ap = from->h_aliases; *ap != 0; na++, ap++) {
|
|
len = strlen(*ap) + 1;
|
|
to->h_aliases[na] = Alloc(len, buf, bufsize, 0);
|
|
if (!to->h_aliases[na]) {
|
|
return PR_FAILURE;
|
|
}
|
|
memcpy(to->h_aliases[na], *ap, len);
|
|
}
|
|
to->h_aliases[na] = 0;
|
|
}
|
|
|
|
/* Count the addresses, then allocate storage for the pointers */
|
|
for (na = 1, ap = from->h_addr_list; *ap != 0; na++, ap++) {;} /* nothing to execute */
|
|
to->h_addr_list = (char**)Alloc(
|
|
na * sizeof(char*), buf, bufsize, sizeof(char**));
|
|
if (!to->h_addr_list) {
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
/* Copy the addresses, one at a time */
|
|
for (na = 0, ap = from->h_addr_list; *ap != 0; na++, ap++) {
|
|
to->h_addr_list[na] = Alloc(to->h_length, buf, bufsize, 0);
|
|
if (!to->h_addr_list[na]) {
|
|
return PR_FAILURE;
|
|
}
|
|
if (conversion != _PRIPAddrNoConversion
|
|
&& from->h_addrtype == AF_INET) {
|
|
if (conversion == _PRIPAddrIPv4Mapped) {
|
|
MakeIPv4MappedAddr(*ap, to->h_addr_list[na]);
|
|
} else {
|
|
PR_ASSERT(conversion == _PRIPAddrIPv4Compat);
|
|
MakeIPv4CompatAddr(*ap, to->h_addr_list[na]);
|
|
}
|
|
} else {
|
|
memcpy(to->h_addr_list[na], *ap, to->h_length);
|
|
}
|
|
}
|
|
to->h_addr_list[na] = 0;
|
|
return PR_SUCCESS;
|
|
}
|
|
|
|
#if !defined(_PR_HAVE_GETPROTO_R)
|
|
/*
|
|
** Copy a protoent, and all of the memory that it refers to into
|
|
** (hopefully) stacked buffers.
|
|
*/
|
|
static PRStatus CopyProtoent(
|
|
struct protoent *from, char *buf, PRIntn bufsize, PRProtoEnt *to)
|
|
{
|
|
PRIntn len, na;
|
|
char **ap;
|
|
|
|
/* Do the easy stuff */
|
|
to->p_num = from->p_proto;
|
|
|
|
/* Copy the official name */
|
|
if (!from->p_name) {
|
|
return PR_FAILURE;
|
|
}
|
|
len = strlen(from->p_name) + 1;
|
|
to->p_name = Alloc(len, &buf, &bufsize, 0);
|
|
if (!to->p_name) {
|
|
return PR_FAILURE;
|
|
}
|
|
memcpy(to->p_name, from->p_name, len);
|
|
|
|
/* Count the aliases, then allocate storage for the pointers */
|
|
for (na = 1, ap = from->p_aliases; *ap != 0; na++, ap++) {;} /* nothing to execute */
|
|
to->p_aliases = (char**)Alloc(
|
|
na * sizeof(char*), &buf, &bufsize, sizeof(char**));
|
|
if (!to->p_aliases) {
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
/* Copy the aliases, one at a time */
|
|
for (na = 0, ap = from->p_aliases; *ap != 0; na++, ap++) {
|
|
len = strlen(*ap) + 1;
|
|
to->p_aliases[na] = Alloc(len, &buf, &bufsize, 0);
|
|
if (!to->p_aliases[na]) {
|
|
return PR_FAILURE;
|
|
}
|
|
memcpy(to->p_aliases[na], *ap, len);
|
|
}
|
|
to->p_aliases[na] = 0;
|
|
|
|
return PR_SUCCESS;
|
|
}
|
|
#endif /* !defined(_PR_HAVE_GETPROTO_R) */
|
|
|
|
/*
|
|
* #################################################################
|
|
* NOTE: tmphe, tmpbuf, bufsize, h, and h_err are local variables
|
|
* or arguments of PR_GetHostByName, PR_GetIPNodeByName, and
|
|
* PR_GetHostByAddr. DO NOT CHANGE THE NAMES OF THESE LOCAL
|
|
* VARIABLES OR ARGUMENTS.
|
|
* #################################################################
|
|
*/
|
|
#if defined(_PR_HAVE_GETHOST_R_INT)
|
|
|
|
#define GETHOSTBYNAME(name) \
|
|
(gethostbyname_r(name, &tmphe, tmpbuf, bufsize, &h, &h_err), h)
|
|
#define GETHOSTBYNAME2(name, af) \
|
|
(gethostbyname2_r(name, af, &tmphe, tmpbuf, bufsize, &h, &h_err), h)
|
|
#define GETHOSTBYADDR(addr, addrlen, af) \
|
|
(gethostbyaddr_r(addr, addrlen, af, \
|
|
&tmphe, tmpbuf, bufsize, &h, &h_err), h)
|
|
|
|
#elif defined(_PR_HAVE_GETHOST_R_POINTER)
|
|
|
|
#define GETHOSTBYNAME(name) \
|
|
gethostbyname_r(name, &tmphe, tmpbuf, bufsize, &h_err)
|
|
#define GETHOSTBYNAME2(name, af) \
|
|
gethostbyname2_r(name, af, &tmphe, tmpbuf, bufsize, &h_err)
|
|
#define GETHOSTBYADDR(addr, addrlen, af) \
|
|
gethostbyaddr_r(addr, addrlen, af, &tmphe, tmpbuf, bufsize, &h_err)
|
|
|
|
#else
|
|
|
|
#define GETHOSTBYNAME(name) gethostbyname(name)
|
|
#define GETHOSTBYNAME2(name, af) gethostbyname2(name, af)
|
|
#define GETHOSTBYADDR(addr, addrlen, af) gethostbyaddr(addr, addrlen, af)
|
|
|
|
#endif /* definition of GETHOSTBYXXX */
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_GetHostByName(
|
|
const char *name, char *buf, PRIntn bufsize, PRHostEnt *hp)
|
|
{
|
|
struct hostent *h;
|
|
PRStatus rv = PR_FAILURE;
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
char localbuf[PR_NETDB_BUF_SIZE];
|
|
char *tmpbuf;
|
|
struct hostent tmphe;
|
|
int h_err;
|
|
#endif
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
tmpbuf = localbuf;
|
|
if (bufsize > sizeof(localbuf))
|
|
{
|
|
tmpbuf = (char *)PR_Malloc(bufsize);
|
|
if (NULL == tmpbuf)
|
|
{
|
|
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
|
|
return rv;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
LOCK_DNS();
|
|
|
|
h = GETHOSTBYNAME(name);
|
|
|
|
if (NULL == h)
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
|
|
}
|
|
else
|
|
{
|
|
_PRIPAddrConversion conversion = _PRIPAddrNoConversion;
|
|
rv = CopyHostent(h, &buf, &bufsize, conversion, hp);
|
|
if (PR_SUCCESS != rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
}
|
|
UNLOCK_DNS();
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
if (tmpbuf != localbuf) {
|
|
PR_Free(tmpbuf);
|
|
}
|
|
#endif
|
|
return rv;
|
|
}
|
|
|
|
#if !defined(_PR_INET6) && \
|
|
defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
typedef struct hostent * (*_pr_getipnodebyname_t)(const char *, int,
|
|
int, int *);
|
|
typedef struct hostent * (*_pr_getipnodebyaddr_t)(const void *, size_t,
|
|
int, int *);
|
|
typedef void (*_pr_freehostent_t)(struct hostent *);
|
|
static void * _pr_getipnodebyname_fp;
|
|
static void * _pr_getipnodebyaddr_fp;
|
|
static void * _pr_freehostent_fp;
|
|
|
|
/*
|
|
* Look up the addresses of getipnodebyname, getipnodebyaddr,
|
|
* and freehostent.
|
|
*/
|
|
PRStatus
|
|
_pr_find_getipnodebyname(void)
|
|
{
|
|
PRLibrary *lib;
|
|
PRStatus rv;
|
|
#define GETIPNODEBYNAME "getipnodebyname"
|
|
#define GETIPNODEBYADDR "getipnodebyaddr"
|
|
#define FREEHOSTENT "freehostent"
|
|
|
|
_pr_getipnodebyname_fp = PR_FindSymbolAndLibrary(GETIPNODEBYNAME, &lib);
|
|
if (NULL != _pr_getipnodebyname_fp) {
|
|
_pr_freehostent_fp = PR_FindSymbol(lib, FREEHOSTENT);
|
|
if (NULL != _pr_freehostent_fp) {
|
|
_pr_getipnodebyaddr_fp = PR_FindSymbol(lib, GETIPNODEBYADDR);
|
|
if (NULL != _pr_getipnodebyaddr_fp) {
|
|
rv = PR_SUCCESS;
|
|
}
|
|
else {
|
|
rv = PR_FAILURE;
|
|
}
|
|
} else {
|
|
rv = PR_FAILURE;
|
|
}
|
|
(void)PR_UnloadLibrary(lib);
|
|
} else {
|
|
rv = PR_FAILURE;
|
|
}
|
|
return rv;
|
|
}
|
|
#endif
|
|
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
/*
|
|
** Append the V4 addresses to the end of the list
|
|
*/
|
|
static PRStatus AppendV4AddrsToHostent(
|
|
struct hostent *from,
|
|
char **buf,
|
|
PRIntn *bufsize,
|
|
PRHostEnt *to)
|
|
{
|
|
PRIntn na, na_old;
|
|
char **ap;
|
|
char **new_addr_list;
|
|
|
|
/* Count the addresses, then grow storage for the pointers */
|
|
for (na_old = 0, ap = to->h_addr_list; *ap != 0; na_old++, ap++)
|
|
{;} /* nothing to execute */
|
|
for (na = na_old + 1, ap = from->h_addr_list; *ap != 0; na++, ap++)
|
|
{;} /* nothing to execute */
|
|
new_addr_list = (char**)Alloc(
|
|
na * sizeof(char*), buf, bufsize, sizeof(char**));
|
|
if (!new_addr_list) {
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
/* Copy the V6 addresses, one at a time */
|
|
for (na = 0, ap = to->h_addr_list; *ap != 0; na++, ap++) {
|
|
new_addr_list[na] = to->h_addr_list[na];
|
|
}
|
|
to->h_addr_list = new_addr_list;
|
|
|
|
/* Copy the V4 addresses, one at a time */
|
|
for (ap = from->h_addr_list; *ap != 0; na++, ap++) {
|
|
to->h_addr_list[na] = Alloc(to->h_length, buf, bufsize, 0);
|
|
if (!to->h_addr_list[na]) {
|
|
return PR_FAILURE;
|
|
}
|
|
MakeIPv4MappedAddr(*ap, to->h_addr_list[na]);
|
|
}
|
|
to->h_addr_list[na] = 0;
|
|
return PR_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_GetIPNodeByName(
|
|
const char *name, PRUint16 af, PRIntn flags,
|
|
char *buf, PRIntn bufsize, PRHostEnt *hp)
|
|
{
|
|
struct hostent *h = 0;
|
|
PRStatus rv = PR_FAILURE;
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
char localbuf[PR_NETDB_BUF_SIZE];
|
|
char *tmpbuf;
|
|
struct hostent tmphe;
|
|
int h_err;
|
|
#endif
|
|
#if defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
PRUint16 md_af = af;
|
|
int error_num;
|
|
int tmp_flags = 0;
|
|
#endif
|
|
#if defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
PRBool did_af_inet = PR_FALSE;
|
|
#endif
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
if (af != PR_AF_INET && af != PR_AF_INET6) {
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
PR_Lock(_pr_query_ifs_lock);
|
|
/*
|
|
* Keep querying the presence of IPv4 and IPv6 interfaces until
|
|
* at least one is up. This allows us to detect the local
|
|
* machine going from offline to online.
|
|
*/
|
|
if (!_pr_have_inet_if && !_pr_have_inet6_if) {
|
|
_pr_QueryNetIfs();
|
|
#ifdef DEBUG_QUERY_IFS
|
|
if (_pr_have_inet_if) {
|
|
printf("Have IPv4 source address\n");
|
|
}
|
|
if (_pr_have_inet6_if) {
|
|
printf("Have IPv6 source address\n");
|
|
}
|
|
#endif
|
|
}
|
|
PR_Unlock(_pr_query_ifs_lock);
|
|
#endif
|
|
|
|
#if defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
if (flags & PR_AI_V4MAPPED) {
|
|
tmp_flags |= AI_V4MAPPED;
|
|
}
|
|
if (flags & PR_AI_ADDRCONFIG) {
|
|
tmp_flags |= AI_ADDRCONFIG;
|
|
}
|
|
if (flags & PR_AI_ALL) {
|
|
tmp_flags |= AI_ALL;
|
|
}
|
|
if (af == PR_AF_INET6) {
|
|
md_af = AF_INET6;
|
|
}
|
|
else {
|
|
md_af = af;
|
|
}
|
|
#endif
|
|
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
tmpbuf = localbuf;
|
|
if (bufsize > sizeof(localbuf))
|
|
{
|
|
tmpbuf = (char *)PR_Malloc(bufsize);
|
|
if (NULL == tmpbuf)
|
|
{
|
|
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
|
|
return rv;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Do not need to lock the DNS lock if getipnodebyname() is called */
|
|
#ifdef _PR_INET6
|
|
#ifdef _PR_HAVE_GETHOSTBYNAME2
|
|
LOCK_DNS();
|
|
if (af == PR_AF_INET6)
|
|
{
|
|
if ((flags & PR_AI_ADDRCONFIG) == 0 || _pr_have_inet6_if)
|
|
{
|
|
#ifdef _PR_INET6_PROBE
|
|
if (_pr_ipv6_is_present())
|
|
#endif
|
|
h = GETHOSTBYNAME2(name, AF_INET6);
|
|
}
|
|
if ((NULL == h) && (flags & PR_AI_V4MAPPED)
|
|
&& ((flags & PR_AI_ADDRCONFIG) == 0 || _pr_have_inet_if))
|
|
{
|
|
did_af_inet = PR_TRUE;
|
|
h = GETHOSTBYNAME2(name, AF_INET);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((flags & PR_AI_ADDRCONFIG) == 0 || _pr_have_inet_if)
|
|
{
|
|
did_af_inet = PR_TRUE;
|
|
h = GETHOSTBYNAME2(name, af);
|
|
}
|
|
}
|
|
#elif defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
h = getipnodebyname(name, md_af, tmp_flags, &error_num);
|
|
#else
|
|
#error "Unknown name-to-address translation function"
|
|
#endif /* _PR_HAVE_GETHOSTBYNAME2 */
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
if (_pr_ipv6_is_present())
|
|
{
|
|
#ifdef PR_GETIPNODE_NOT_THREADSAFE
|
|
LOCK_DNS();
|
|
#endif
|
|
h = (*((_pr_getipnodebyname_t)_pr_getipnodebyname_fp))(name, md_af, tmp_flags, &error_num);
|
|
}
|
|
else
|
|
{
|
|
LOCK_DNS();
|
|
h = GETHOSTBYNAME(name);
|
|
}
|
|
#else /* _PR_INET6 */
|
|
LOCK_DNS();
|
|
h = GETHOSTBYNAME(name);
|
|
#endif /* _PR_INET6 */
|
|
|
|
if (NULL == h)
|
|
{
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, error_num);
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
if (_pr_ipv6_is_present()) {
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, error_num);
|
|
}
|
|
else {
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
|
|
}
|
|
#else
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
_PRIPAddrConversion conversion = _PRIPAddrNoConversion;
|
|
|
|
if (af == PR_AF_INET6) {
|
|
conversion = _PRIPAddrIPv4Mapped;
|
|
}
|
|
rv = CopyHostent(h, &buf, &bufsize, conversion, hp);
|
|
if (PR_SUCCESS != rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
freehostent(h);
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
if (_pr_ipv6_is_present()) {
|
|
(*((_pr_freehostent_t)_pr_freehostent_fp))(h);
|
|
}
|
|
#endif
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETHOSTBYNAME2)
|
|
if ((PR_SUCCESS == rv) && (flags & PR_AI_V4MAPPED)
|
|
&& ((flags & PR_AI_ALL)
|
|
|| ((flags & PR_AI_ADDRCONFIG) && _pr_have_inet_if))
|
|
&& !did_af_inet && (h = GETHOSTBYNAME2(name, AF_INET)) != 0) {
|
|
rv = AppendV4AddrsToHostent(h, &buf, &bufsize, hp);
|
|
if (PR_SUCCESS != rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Must match the convoluted logic above for LOCK_DNS() */
|
|
#ifdef _PR_INET6
|
|
#ifdef _PR_HAVE_GETHOSTBYNAME2
|
|
UNLOCK_DNS();
|
|
#endif /* _PR_HAVE_GETHOSTBYNAME2 */
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYNAME)
|
|
#ifdef PR_GETIPNODE_NOT_THREADSAFE
|
|
UNLOCK_DNS();
|
|
#else
|
|
if (!_pr_ipv6_is_present()) {
|
|
UNLOCK_DNS();
|
|
}
|
|
#endif
|
|
#else /* _PR_INET6 */
|
|
UNLOCK_DNS();
|
|
#endif /* _PR_INET6 */
|
|
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
if (tmpbuf != localbuf) {
|
|
PR_Free(tmpbuf);
|
|
}
|
|
#endif
|
|
|
|
return rv;
|
|
}
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_GetHostByAddr(
|
|
const PRNetAddr *hostaddr, char *buf, PRIntn bufsize, PRHostEnt *hostentry)
|
|
{
|
|
struct hostent *h;
|
|
PRStatus rv = PR_FAILURE;
|
|
const void *addr;
|
|
PRUint32 tmp_ip;
|
|
int addrlen;
|
|
PRInt32 af;
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
char localbuf[PR_NETDB_BUF_SIZE];
|
|
char *tmpbuf;
|
|
struct hostent tmphe;
|
|
int h_err;
|
|
#endif
|
|
#if defined(_PR_HAVE_GETIPNODEBYADDR)
|
|
int error_num;
|
|
#endif
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
if (hostaddr->raw.family == PR_AF_INET6)
|
|
{
|
|
#if defined(_PR_INET6_PROBE)
|
|
af = _pr_ipv6_is_present() ? AF_INET6 : AF_INET;
|
|
#elif defined(_PR_INET6)
|
|
af = AF_INET6;
|
|
#else
|
|
af = AF_INET;
|
|
#endif
|
|
#if defined(_PR_GHBA_DISALLOW_V4MAPPED)
|
|
if (_PR_IN6_IS_ADDR_V4MAPPED(&hostaddr->ipv6.ip)) {
|
|
af = AF_INET;
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
PR_ASSERT(hostaddr->raw.family == AF_INET);
|
|
af = AF_INET;
|
|
}
|
|
if (hostaddr->raw.family == PR_AF_INET6) {
|
|
#if defined(_PR_INET6) || defined(_PR_INET6_PROBE)
|
|
if (af == AF_INET6) {
|
|
addr = &hostaddr->ipv6.ip;
|
|
addrlen = sizeof(hostaddr->ipv6.ip);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
PR_ASSERT(af == AF_INET);
|
|
if (!_PR_IN6_IS_ADDR_V4MAPPED(&hostaddr->ipv6.ip)) {
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return rv;
|
|
}
|
|
tmp_ip = _PR_IN6_V4MAPPED_TO_IPADDR((PRIPv6Addr *)
|
|
&hostaddr->ipv6.ip);
|
|
addr = &tmp_ip;
|
|
addrlen = sizeof(tmp_ip);
|
|
}
|
|
} else {
|
|
PR_ASSERT(hostaddr->raw.family == AF_INET);
|
|
PR_ASSERT(af == AF_INET);
|
|
addr = &hostaddr->inet.ip;
|
|
addrlen = sizeof(hostaddr->inet.ip);
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
tmpbuf = localbuf;
|
|
if (bufsize > sizeof(localbuf))
|
|
{
|
|
tmpbuf = (char *)PR_Malloc(bufsize);
|
|
if (NULL == tmpbuf)
|
|
{
|
|
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
|
|
return rv;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Do not need to lock the DNS lock if getipnodebyaddr() is called */
|
|
#if defined(_PR_HAVE_GETIPNODEBYADDR) && defined(_PR_INET6)
|
|
h = getipnodebyaddr(addr, addrlen, af, &error_num);
|
|
#elif defined(_PR_HAVE_GETIPNODEBYADDR) && defined(_PR_INET6_PROBE)
|
|
if (_pr_ipv6_is_present())
|
|
{
|
|
#ifdef PR_GETIPNODE_NOT_THREADSAFE
|
|
LOCK_DNS();
|
|
#endif
|
|
h = (*((_pr_getipnodebyaddr_t)_pr_getipnodebyaddr_fp))(addr, addrlen,
|
|
af, &error_num);
|
|
}
|
|
else
|
|
{
|
|
LOCK_DNS();
|
|
h = GETHOSTBYADDR(addr, addrlen, af);
|
|
}
|
|
#else /* _PR_HAVE_GETIPNODEBYADDR */
|
|
LOCK_DNS();
|
|
h = GETHOSTBYADDR(addr, addrlen, af);
|
|
#endif /* _PR_HAVE_GETIPNODEBYADDR */
|
|
if (NULL == h)
|
|
{
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETIPNODEBYADDR)
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, error_num);
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYADDR)
|
|
if (_pr_ipv6_is_present()) {
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, error_num);
|
|
}
|
|
else {
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
|
|
}
|
|
#else
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
_PRIPAddrConversion conversion = _PRIPAddrNoConversion;
|
|
if (hostaddr->raw.family == PR_AF_INET6) {
|
|
if (af == AF_INET) {
|
|
if (_PR_IN6_IS_ADDR_V4MAPPED((PRIPv6Addr*)
|
|
&hostaddr->ipv6.ip)) {
|
|
conversion = _PRIPAddrIPv4Mapped;
|
|
} else if (_PR_IN6_IS_ADDR_V4COMPAT((PRIPv6Addr *)
|
|
&hostaddr->ipv6.ip)) {
|
|
conversion = _PRIPAddrIPv4Compat;
|
|
}
|
|
}
|
|
}
|
|
rv = CopyHostent(h, &buf, &bufsize, conversion, hostentry);
|
|
if (PR_SUCCESS != rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
#if defined(_PR_INET6) && defined(_PR_HAVE_GETIPNODEBYADDR)
|
|
freehostent(h);
|
|
#elif defined(_PR_INET6_PROBE) && defined(_PR_HAVE_GETIPNODEBYADDR)
|
|
if (_pr_ipv6_is_present()) {
|
|
(*((_pr_freehostent_t)_pr_freehostent_fp))(h);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Must match the convoluted logic above for LOCK_DNS() */
|
|
#if defined(_PR_HAVE_GETIPNODEBYADDR) && defined(_PR_INET6)
|
|
#elif defined(_PR_HAVE_GETIPNODEBYADDR) && defined(_PR_INET6_PROBE)
|
|
#ifdef PR_GETIPNODE_NOT_THREADSAFE
|
|
UNLOCK_DNS();
|
|
#else
|
|
if (!_pr_ipv6_is_present()) {
|
|
UNLOCK_DNS();
|
|
}
|
|
#endif
|
|
#else /* _PR_HAVE_GETIPNODEBYADDR */
|
|
UNLOCK_DNS();
|
|
#endif /* _PR_HAVE_GETIPNODEBYADDR */
|
|
|
|
#if defined(_PR_HAVE_GETHOST_R)
|
|
if (tmpbuf != localbuf) {
|
|
PR_Free(tmpbuf);
|
|
}
|
|
#endif
|
|
|
|
return rv;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/*
|
|
* Some systems define a reentrant version of getprotobyname(). Too bad
|
|
* the signature isn't always the same. But hey, they tried. If there
|
|
* is such a definition, use it. Otherwise, grab a lock and do it here.
|
|
*/
|
|
/******************************************************************************/
|
|
|
|
#if !defined(_PR_HAVE_GETPROTO_R)
|
|
/*
|
|
* This may seem like a silly thing to do, but the compiler SHOULD
|
|
* complain if getprotobyname_r() is implemented on some system and
|
|
* we're not using it. For sure these signatures are different than
|
|
* any usable implementation.
|
|
*/
|
|
|
|
#if defined(ANDROID)
|
|
/* Android's Bionic libc system includes prototypes for these in netdb.h,
|
|
* but doesn't actually include implementations. It uses the 5-arg form,
|
|
* so these functions end up not matching the prototype. So just rename
|
|
* them if not found.
|
|
*/
|
|
#define getprotobyname_r _pr_getprotobyname_r
|
|
#define getprotobynumber_r _pr_getprotobynumber_r
|
|
#endif
|
|
|
|
static struct protoent *getprotobyname_r(const char* name)
|
|
{
|
|
return getprotobyname(name);
|
|
} /* getprotobyname_r */
|
|
|
|
static struct protoent *getprotobynumber_r(PRInt32 number)
|
|
{
|
|
return getprotobynumber(number);
|
|
} /* getprotobynumber_r */
|
|
|
|
#endif /* !defined(_PR_HAVE_GETPROTO_R) */
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_GetProtoByName(
|
|
const char* name, char* buffer, PRInt32 buflen, PRProtoEnt* result)
|
|
{
|
|
PRStatus rv = PR_SUCCESS;
|
|
#if defined(_PR_HAVE_GETPROTO_R)
|
|
struct protoent* res = (struct protoent*)result;
|
|
#endif
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETPROTO_R_INT)
|
|
{
|
|
/*
|
|
** The protoent_data has a pointer as the first field.
|
|
** That implies the buffer better be aligned, and char*
|
|
** doesn't promise much.
|
|
*/
|
|
PRUptrdiff aligned = (PRUptrdiff)buffer;
|
|
if (0 != (aligned & (sizeof(struct protoent_data*) - 1)))
|
|
{
|
|
aligned += sizeof(struct protoent_data*) - 1;
|
|
aligned &= ~(sizeof(struct protoent_data*) - 1);
|
|
buflen -= (aligned - (PRUptrdiff)buffer);
|
|
buffer = (char*)aligned;
|
|
}
|
|
}
|
|
#endif /* defined(_PR_HAVE_GETPROTO_R_INT) */
|
|
|
|
if (PR_NETDB_BUF_SIZE > buflen)
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETPROTO_R_POINTER)
|
|
if (NULL == getprotobyname_r(name, res, buffer, buflen))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
#elif defined(_PR_HAVE_GETPROTO_R_INT)
|
|
/*
|
|
** The buffer needs to be zero'd, and it should be
|
|
** at least the size of a struct protoent_data.
|
|
*/
|
|
memset(buffer, 0, buflen);
|
|
if (-1 == getprotobyname_r(name, res, (struct protoent_data*)buffer))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
#elif defined(_PR_HAVE_5_ARG_GETPROTO_R)
|
|
/* The 5th argument for getprotobyname_r() cannot be NULL */
|
|
if (-1 == getprotobyname_r(name, res, buffer, buflen, &res))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
#else /* do it the hard way */
|
|
{
|
|
struct protoent *staticBuf;
|
|
PR_Lock(_getproto_lock);
|
|
staticBuf = getprotobyname_r(name);
|
|
if (NULL == staticBuf)
|
|
{
|
|
rv = PR_FAILURE;
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
}
|
|
else
|
|
{
|
|
rv = CopyProtoent(staticBuf, buffer, buflen, result);
|
|
if (PR_FAILURE == rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
}
|
|
PR_Unlock(_getproto_lock);
|
|
}
|
|
#endif /* all that */
|
|
return rv;
|
|
}
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_GetProtoByNumber(
|
|
PRInt32 number, char* buffer, PRInt32 buflen, PRProtoEnt* result)
|
|
{
|
|
PRStatus rv = PR_SUCCESS;
|
|
#if defined(_PR_HAVE_GETPROTO_R)
|
|
struct protoent* res = (struct protoent*)result;
|
|
#endif
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETPROTO_R_INT)
|
|
{
|
|
/*
|
|
** The protoent_data has a pointer as the first field.
|
|
** That implies the buffer better be aligned, and char*
|
|
** doesn't promise much.
|
|
*/
|
|
PRUptrdiff aligned = (PRUptrdiff)buffer;
|
|
if (0 != (aligned & (sizeof(struct protoent_data*) - 1)))
|
|
{
|
|
aligned += sizeof(struct protoent_data*) - 1;
|
|
aligned &= ~(sizeof(struct protoent_data*) - 1);
|
|
buflen -= (aligned - (PRUptrdiff)buffer);
|
|
buffer = (char*)aligned;
|
|
}
|
|
}
|
|
#endif /* defined(_PR_HAVE_GETPROTO_R_INT) */
|
|
|
|
if (PR_NETDB_BUF_SIZE > buflen)
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETPROTO_R_POINTER)
|
|
if (NULL == getprotobynumber_r(number, res, buffer, buflen))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
#elif defined(_PR_HAVE_GETPROTO_R_INT)
|
|
/*
|
|
** The buffer needs to be zero'd for these OS's.
|
|
*/
|
|
memset(buffer, 0, buflen);
|
|
if (-1 == getprotobynumber_r(number, res, (struct protoent_data*)buffer))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
#elif defined(_PR_HAVE_5_ARG_GETPROTO_R)
|
|
/* The 5th argument for getprotobynumber_r() cannot be NULL */
|
|
if (-1 == getprotobynumber_r(number, res, buffer, buflen, &res))
|
|
{
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
return PR_FAILURE;
|
|
}
|
|
#else /* do it the hard way */
|
|
{
|
|
struct protoent *staticBuf;
|
|
PR_Lock(_getproto_lock);
|
|
staticBuf = getprotobynumber_r(number);
|
|
if (NULL == staticBuf)
|
|
{
|
|
rv = PR_FAILURE;
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
|
|
}
|
|
else
|
|
{
|
|
rv = CopyProtoent(staticBuf, buffer, buflen, result);
|
|
if (PR_FAILURE == rv) {
|
|
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
|
|
}
|
|
}
|
|
PR_Unlock(_getproto_lock);
|
|
}
|
|
#endif /* all that crap */
|
|
return rv;
|
|
|
|
}
|
|
|
|
PRUintn _PR_NetAddrSize(const PRNetAddr* addr)
|
|
{
|
|
PRUintn addrsize;
|
|
|
|
/*
|
|
* RFC 2553 added a new field (sin6_scope_id) to
|
|
* struct sockaddr_in6. PRNetAddr's ipv6 member has a
|
|
* scope_id field to match the new field. In order to
|
|
* work with older implementations supporting RFC 2133,
|
|
* we take the size of struct sockaddr_in6 instead of
|
|
* addr->ipv6.
|
|
*/
|
|
if (AF_INET == addr->raw.family) {
|
|
addrsize = sizeof(addr->inet);
|
|
}
|
|
else if (PR_AF_INET6 == addr->raw.family)
|
|
#if defined(_PR_INET6)
|
|
addrsize = sizeof(struct sockaddr_in6);
|
|
#else
|
|
addrsize = sizeof(addr->ipv6);
|
|
#endif
|
|
#if defined(XP_UNIX) || defined(XP_OS2)
|
|
else if (AF_UNIX == addr->raw.family)
|
|
{
|
|
#if defined(LINUX)
|
|
if (addr->local.path[0] == 0)
|
|
/* abstract socket address is supported on Linux only */
|
|
addrsize = strnlen(addr->local.path + 1,
|
|
sizeof(addr->local.path)) +
|
|
offsetof(struct sockaddr_un, sun_path) + 1;
|
|
else
|
|
#endif
|
|
addrsize = sizeof(addr->local);
|
|
}
|
|
#endif
|
|
else {
|
|
addrsize = 0;
|
|
}
|
|
|
|
return addrsize;
|
|
} /* _PR_NetAddrSize */
|
|
|
|
PR_IMPLEMENT(PRIntn) PR_EnumerateHostEnt(
|
|
PRIntn enumIndex, const PRHostEnt *hostEnt, PRUint16 port, PRNetAddr *address)
|
|
{
|
|
void *addr = hostEnt->h_addr_list[enumIndex++];
|
|
memset(address, 0, sizeof(PRNetAddr));
|
|
if (NULL == addr) {
|
|
enumIndex = 0;
|
|
}
|
|
else
|
|
{
|
|
address->raw.family = hostEnt->h_addrtype;
|
|
if (PR_AF_INET6 == hostEnt->h_addrtype)
|
|
{
|
|
address->ipv6.port = htons(port);
|
|
address->ipv6.flowinfo = 0;
|
|
address->ipv6.scope_id = 0;
|
|
memcpy(&address->ipv6.ip, addr, hostEnt->h_length);
|
|
}
|
|
else
|
|
{
|
|
PR_ASSERT(AF_INET == hostEnt->h_addrtype);
|
|
address->inet.port = htons(port);
|
|
memcpy(&address->inet.ip, addr, hostEnt->h_length);
|
|
}
|
|
}
|
|
return enumIndex;
|
|
} /* PR_EnumerateHostEnt */
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_InitializeNetAddr(
|
|
PRNetAddrValue val, PRUint16 port, PRNetAddr *addr)
|
|
{
|
|
PRStatus rv = PR_SUCCESS;
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
if (val != PR_IpAddrNull) {
|
|
memset(addr, 0, sizeof(*addr));
|
|
}
|
|
addr->inet.family = AF_INET;
|
|
addr->inet.port = htons(port);
|
|
switch (val)
|
|
{
|
|
case PR_IpAddrNull:
|
|
break; /* don't overwrite the address */
|
|
case PR_IpAddrAny:
|
|
addr->inet.ip = htonl(INADDR_ANY);
|
|
break;
|
|
case PR_IpAddrLoopback:
|
|
addr->inet.ip = htonl(INADDR_LOOPBACK);
|
|
break;
|
|
default:
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
rv = PR_FAILURE;
|
|
}
|
|
return rv;
|
|
} /* PR_InitializeNetAddr */
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_SetNetAddr(
|
|
PRNetAddrValue val, PRUint16 af, PRUint16 port, PRNetAddr *addr)
|
|
{
|
|
PRStatus rv = PR_SUCCESS;
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
if (af == PR_AF_INET6)
|
|
{
|
|
if (val != PR_IpAddrNull) {
|
|
memset(addr, 0, sizeof(addr->ipv6));
|
|
}
|
|
addr->ipv6.family = af;
|
|
addr->ipv6.port = htons(port);
|
|
addr->ipv6.flowinfo = 0;
|
|
addr->ipv6.scope_id = 0;
|
|
switch (val)
|
|
{
|
|
case PR_IpAddrNull:
|
|
break; /* don't overwrite the address */
|
|
case PR_IpAddrAny:
|
|
addr->ipv6.ip = _pr_in6addr_any;
|
|
break;
|
|
case PR_IpAddrLoopback:
|
|
addr->ipv6.ip = _pr_in6addr_loopback;
|
|
break;
|
|
default:
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
rv = PR_FAILURE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (val != PR_IpAddrNull) {
|
|
memset(addr, 0, sizeof(addr->inet));
|
|
}
|
|
addr->inet.family = af;
|
|
addr->inet.port = htons(port);
|
|
switch (val)
|
|
{
|
|
case PR_IpAddrNull:
|
|
break; /* don't overwrite the address */
|
|
case PR_IpAddrAny:
|
|
addr->inet.ip = htonl(INADDR_ANY);
|
|
break;
|
|
case PR_IpAddrLoopback:
|
|
addr->inet.ip = htonl(INADDR_LOOPBACK);
|
|
break;
|
|
default:
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
rv = PR_FAILURE;
|
|
}
|
|
}
|
|
return rv;
|
|
} /* PR_SetNetAddr */
|
|
|
|
PR_IMPLEMENT(PRBool)
|
|
PR_IsNetAddrType(const PRNetAddr *addr, PRNetAddrValue val)
|
|
{
|
|
if (addr->raw.family == PR_AF_INET6) {
|
|
if (val == PR_IpAddrAny) {
|
|
if (_PR_IN6_IS_ADDR_UNSPECIFIED((PRIPv6Addr *)&addr->ipv6.ip)) {
|
|
return PR_TRUE;
|
|
}
|
|
if (_PR_IN6_IS_ADDR_V4MAPPED((PRIPv6Addr *)&addr->ipv6.ip)
|
|
&& _PR_IN6_V4MAPPED_TO_IPADDR((PRIPv6Addr *)&addr->ipv6.ip)
|
|
== htonl(INADDR_ANY)) {
|
|
return PR_TRUE;
|
|
}
|
|
} else if (val == PR_IpAddrLoopback) {
|
|
if (_PR_IN6_IS_ADDR_LOOPBACK((PRIPv6Addr *)&addr->ipv6.ip)) {
|
|
return PR_TRUE;
|
|
}
|
|
if (_PR_IN6_IS_ADDR_V4MAPPED((PRIPv6Addr *)&addr->ipv6.ip)
|
|
&& _PR_IN6_V4MAPPED_TO_IPADDR((PRIPv6Addr *)&addr->ipv6.ip)
|
|
== htonl(INADDR_LOOPBACK)) {
|
|
return PR_TRUE;
|
|
}
|
|
} else if (val == PR_IpAddrV4Mapped
|
|
&& _PR_IN6_IS_ADDR_V4MAPPED((PRIPv6Addr *)&addr->ipv6.ip)) {
|
|
return PR_TRUE;
|
|
}
|
|
} else {
|
|
if (addr->raw.family == AF_INET) {
|
|
if (val == PR_IpAddrAny && addr->inet.ip == htonl(INADDR_ANY)) {
|
|
return PR_TRUE;
|
|
}
|
|
if (val == PR_IpAddrLoopback
|
|
&& addr->inet.ip == htonl(INADDR_LOOPBACK)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
extern int pr_inet_aton(const char *cp, PRUint32 *addr);
|
|
|
|
#define XX 127
|
|
static const unsigned char index_hex[256] = {
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,XX,XX, XX,XX,XX,XX,
|
|
XX,10,11,12, 13,14,15,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,10,11,12, 13,14,15,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX, XX,XX,XX,XX,
|
|
};
|
|
|
|
/*
|
|
* StringToV6Addr() returns 1 if the conversion succeeds,
|
|
* or 0 if the input is not a valid IPv6 address string.
|
|
* (Same as inet_pton(AF_INET6, string, addr).)
|
|
*/
|
|
static int StringToV6Addr(const char *string, PRIPv6Addr *addr)
|
|
{
|
|
const unsigned char *s = (const unsigned char *)string;
|
|
int section = 0; /* index of the current section (a 16-bit
|
|
* piece of the address */
|
|
int double_colon = -1; /* index of the section after the first
|
|
* 16-bit group of zeros represented by
|
|
* the double colon */
|
|
unsigned int val;
|
|
int len;
|
|
|
|
/* Handle initial (double) colon */
|
|
if (*s == ':') {
|
|
if (s[1] != ':') {
|
|
return 0;
|
|
}
|
|
s += 2;
|
|
addr->pr_s6_addr16[0] = 0;
|
|
section = double_colon = 1;
|
|
}
|
|
|
|
while (*s) {
|
|
if (section == 8) {
|
|
return 0; /* too long */
|
|
}
|
|
if (*s == ':') {
|
|
if (double_colon != -1) {
|
|
return 0; /* two double colons */
|
|
}
|
|
addr->pr_s6_addr16[section++] = 0;
|
|
double_colon = section;
|
|
s++;
|
|
continue;
|
|
}
|
|
for (len = val = 0; len < 4 && index_hex[*s] != XX; len++) {
|
|
val = (val << 4) + index_hex[*s++];
|
|
}
|
|
if (*s == '.') {
|
|
if (len == 0) {
|
|
return 0; /* nothing between : and . */
|
|
}
|
|
break;
|
|
}
|
|
if (*s == ':') {
|
|
s++;
|
|
if (!*s) {
|
|
return 0; /* cannot end with single colon */
|
|
}
|
|
} else if (*s) {
|
|
return 0; /* bad character */
|
|
}
|
|
addr->pr_s6_addr16[section++] = htons((unsigned short)val);
|
|
}
|
|
|
|
if (*s == '.') {
|
|
/* Have a trailing v4 format address */
|
|
if (section > 6) {
|
|
return 0; /* not enough room */
|
|
}
|
|
|
|
/*
|
|
* The number before the '.' is decimal, but we parsed it
|
|
* as hex. That means it is in BCD. Check it for validity
|
|
* and convert it to binary.
|
|
*/
|
|
if (val > 0x0255 || (val & 0xf0) > 0x90 || (val & 0xf) > 9) {
|
|
return 0;
|
|
}
|
|
val = (val >> 8) * 100 + ((val >> 4) & 0xf) * 10 + (val & 0xf);
|
|
addr->pr_s6_addr[2 * section] = val;
|
|
|
|
s++;
|
|
val = index_hex[*s++];
|
|
if (val > 9) {
|
|
return 0;
|
|
}
|
|
while (*s >= '0' && *s <= '9') {
|
|
val = val * 10 + *s++ - '0';
|
|
if (val > 255) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (*s != '.') {
|
|
return 0; /* must have exactly 4 decimal numbers */
|
|
}
|
|
addr->pr_s6_addr[2 * section + 1] = val;
|
|
section++;
|
|
|
|
s++;
|
|
val = index_hex[*s++];
|
|
if (val > 9) {
|
|
return 0;
|
|
}
|
|
while (*s >= '0' && *s <= '9') {
|
|
val = val * 10 + *s++ - '0';
|
|
if (val > 255) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (*s != '.') {
|
|
return 0; /* must have exactly 4 decimal numbers */
|
|
}
|
|
addr->pr_s6_addr[2 * section] = val;
|
|
|
|
s++;
|
|
val = index_hex[*s++];
|
|
if (val > 9) {
|
|
return 0;
|
|
}
|
|
while (*s >= '0' && *s <= '9') {
|
|
val = val * 10 + *s++ - '0';
|
|
if (val > 255) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (*s) {
|
|
return 0; /* must have exactly 4 decimal numbers */
|
|
}
|
|
addr->pr_s6_addr[2 * section + 1] = val;
|
|
section++;
|
|
}
|
|
|
|
if (double_colon != -1) {
|
|
/* Stretch the double colon */
|
|
int tosection;
|
|
int ncopy = section - double_colon;
|
|
for (tosection = 7; ncopy--; tosection--) {
|
|
addr->pr_s6_addr16[tosection] =
|
|
addr->pr_s6_addr16[double_colon + ncopy];
|
|
}
|
|
while (tosection >= double_colon) {
|
|
addr->pr_s6_addr16[tosection--] = 0;
|
|
}
|
|
} else if (section != 8) {
|
|
return 0; /* too short */
|
|
}
|
|
return 1;
|
|
}
|
|
#undef XX
|
|
|
|
#ifndef _PR_HAVE_INET_NTOP
|
|
static const char *basis_hex = "0123456789abcdef";
|
|
|
|
/*
|
|
* V6AddrToString() returns a pointer to the buffer containing
|
|
* the text string if the conversion succeeds, and NULL otherwise.
|
|
* (Same as inet_ntop(AF_INET6, addr, buf, size), except that errno
|
|
* is not set on failure.)
|
|
*/
|
|
static const char *V6AddrToString(
|
|
const PRIPv6Addr *addr, char *buf, PRUint32 size)
|
|
{
|
|
#define STUFF(c) do { \
|
|
if (!size--) return NULL; \
|
|
*buf++ = (c); \
|
|
} while (0)
|
|
|
|
int double_colon = -1; /* index of the first 16-bit
|
|
* group of zeros represented
|
|
* by the double colon */
|
|
int double_colon_length = 1; /* use double colon only if
|
|
* there are two or more 16-bit
|
|
* groups of zeros */
|
|
int zero_length;
|
|
int section;
|
|
unsigned int val;
|
|
const char *bufcopy = buf;
|
|
|
|
/* Scan to find the placement of the double colon */
|
|
for (section = 0; section < 8; section++) {
|
|
if (addr->pr_s6_addr16[section] == 0) {
|
|
zero_length = 1;
|
|
section++;
|
|
while (section < 8 && addr->pr_s6_addr16[section] == 0) {
|
|
zero_length++;
|
|
section++;
|
|
}
|
|
/* Select the longest sequence of zeros */
|
|
if (zero_length > double_colon_length) {
|
|
double_colon = section - zero_length;
|
|
double_colon_length = zero_length;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Now start converting to a string */
|
|
section = 0;
|
|
|
|
if (double_colon == 0) {
|
|
if (double_colon_length == 6 ||
|
|
(double_colon_length == 5 && addr->pr_s6_addr16[5] == 0xffff)) {
|
|
/* ipv4 format address */
|
|
STUFF(':');
|
|
STUFF(':');
|
|
if (double_colon_length == 5) {
|
|
STUFF('f');
|
|
STUFF('f');
|
|
STUFF('f');
|
|
STUFF('f');
|
|
STUFF(':');
|
|
}
|
|
if (addr->pr_s6_addr[12] > 99) {
|
|
STUFF(addr->pr_s6_addr[12]/100 + '0');
|
|
}
|
|
if (addr->pr_s6_addr[12] > 9) {
|
|
STUFF((addr->pr_s6_addr[12]%100)/10 + '0');
|
|
}
|
|
STUFF(addr->pr_s6_addr[12]%10 + '0');
|
|
STUFF('.');
|
|
if (addr->pr_s6_addr[13] > 99) {
|
|
STUFF(addr->pr_s6_addr[13]/100 + '0');
|
|
}
|
|
if (addr->pr_s6_addr[13] > 9) {
|
|
STUFF((addr->pr_s6_addr[13]%100)/10 + '0');
|
|
}
|
|
STUFF(addr->pr_s6_addr[13]%10 + '0');
|
|
STUFF('.');
|
|
if (addr->pr_s6_addr[14] > 99) {
|
|
STUFF(addr->pr_s6_addr[14]/100 + '0');
|
|
}
|
|
if (addr->pr_s6_addr[14] > 9) {
|
|
STUFF((addr->pr_s6_addr[14]%100)/10 + '0');
|
|
}
|
|
STUFF(addr->pr_s6_addr[14]%10 + '0');
|
|
STUFF('.');
|
|
if (addr->pr_s6_addr[15] > 99) {
|
|
STUFF(addr->pr_s6_addr[15]/100 + '0');
|
|
}
|
|
if (addr->pr_s6_addr[15] > 9) {
|
|
STUFF((addr->pr_s6_addr[15]%100)/10 + '0');
|
|
}
|
|
STUFF(addr->pr_s6_addr[15]%10 + '0');
|
|
STUFF('\0');
|
|
return bufcopy;
|
|
}
|
|
}
|
|
|
|
while (section < 8) {
|
|
if (section == double_colon) {
|
|
STUFF(':');
|
|
STUFF(':');
|
|
section += double_colon_length;
|
|
continue;
|
|
}
|
|
val = ntohs(addr->pr_s6_addr16[section]);
|
|
if (val > 0xfff) {
|
|
STUFF(basis_hex[val >> 12]);
|
|
}
|
|
if (val > 0xff) {
|
|
STUFF(basis_hex[(val >> 8) & 0xf]);
|
|
}
|
|
if (val > 0xf) {
|
|
STUFF(basis_hex[(val >> 4) & 0xf]);
|
|
}
|
|
STUFF(basis_hex[val & 0xf]);
|
|
section++;
|
|
if (section < 8 && section != double_colon) {
|
|
STUFF(':');
|
|
}
|
|
}
|
|
STUFF('\0');
|
|
return bufcopy;
|
|
#undef STUFF
|
|
}
|
|
#endif /* !_PR_HAVE_INET_NTOP */
|
|
|
|
/*
|
|
* Convert an IPv4 addr to an (IPv4-mapped) IPv6 addr
|
|
*/
|
|
PR_IMPLEMENT(void) PR_ConvertIPv4AddrToIPv6(PRUint32 v4addr, PRIPv6Addr *v6addr)
|
|
{
|
|
PRUint8 *dstp;
|
|
dstp = v6addr->pr_s6_addr;
|
|
memset(dstp, 0, 10);
|
|
memset(dstp + 10, 0xff, 2);
|
|
memcpy(dstp + 12,(char *) &v4addr, 4);
|
|
}
|
|
|
|
PR_IMPLEMENT(PRUint16) PR_ntohs(PRUint16 n) {
|
|
return ntohs(n);
|
|
}
|
|
PR_IMPLEMENT(PRUint32) PR_ntohl(PRUint32 n) {
|
|
return ntohl(n);
|
|
}
|
|
PR_IMPLEMENT(PRUint16) PR_htons(PRUint16 n) {
|
|
return htons(n);
|
|
}
|
|
PR_IMPLEMENT(PRUint32) PR_htonl(PRUint32 n) {
|
|
return htonl(n);
|
|
}
|
|
PR_IMPLEMENT(PRUint64) PR_ntohll(PRUint64 n)
|
|
{
|
|
#ifdef IS_BIG_ENDIAN
|
|
return n;
|
|
#else
|
|
PRUint32 hi, lo;
|
|
lo = (PRUint32)n;
|
|
hi = (PRUint32)(n >> 32);
|
|
hi = PR_ntohl(hi);
|
|
lo = PR_ntohl(lo);
|
|
return ((PRUint64)lo << 32) + (PRUint64)hi;
|
|
#endif
|
|
} /* ntohll */
|
|
|
|
PR_IMPLEMENT(PRUint64) PR_htonll(PRUint64 n)
|
|
{
|
|
#ifdef IS_BIG_ENDIAN
|
|
return n;
|
|
#else
|
|
PRUint32 hi, lo;
|
|
lo = (PRUint32)n;
|
|
hi = (PRUint32)(n >> 32);
|
|
hi = htonl(hi);
|
|
lo = htonl(lo);
|
|
return ((PRUint64)lo << 32) + (PRUint64)hi;
|
|
#endif
|
|
} /* htonll */
|
|
|
|
|
|
/*
|
|
* Implementation of PR_GetAddrInfoByName and friends
|
|
*
|
|
* Compile-time options:
|
|
*
|
|
* _PR_HAVE_GETADDRINFO Define this macro if the target system provides
|
|
* getaddrinfo. With this defined, NSPR will require
|
|
* getaddrinfo at run time. If this if not defined,
|
|
* then NSPR will attempt to dynamically resolve
|
|
* getaddrinfo, falling back to PR_GetHostByName if
|
|
* getaddrinfo does not exist on the target system.
|
|
*
|
|
* Since getaddrinfo is a relatively new system call on many systems,
|
|
* we are forced to dynamically resolve it at run time in most cases.
|
|
* The exception includes any system (such as Mac OS X) that is known to
|
|
* provide getaddrinfo in all versions that NSPR cares to support.
|
|
*/
|
|
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
|
|
#if defined(_PR_INET6)
|
|
|
|
typedef struct addrinfo PRADDRINFO;
|
|
#define GETADDRINFO getaddrinfo
|
|
#define FREEADDRINFO freeaddrinfo
|
|
#define GETNAMEINFO getnameinfo
|
|
|
|
#elif defined(_PR_INET6_PROBE)
|
|
|
|
typedef struct addrinfo PRADDRINFO;
|
|
|
|
/* getaddrinfo/freeaddrinfo/getnameinfo prototypes */
|
|
#if defined(WIN32)
|
|
#define FUNC_MODIFIER __stdcall
|
|
#else
|
|
#define FUNC_MODIFIER
|
|
#endif
|
|
typedef int (FUNC_MODIFIER * FN_GETADDRINFO)
|
|
(const char *nodename,
|
|
const char *servname,
|
|
const PRADDRINFO *hints,
|
|
PRADDRINFO **res);
|
|
typedef int (FUNC_MODIFIER * FN_FREEADDRINFO)
|
|
(PRADDRINFO *ai);
|
|
typedef int (FUNC_MODIFIER * FN_GETNAMEINFO)
|
|
(const struct sockaddr *addr, int addrlen,
|
|
char *host, int hostlen,
|
|
char *serv, int servlen, int flags);
|
|
|
|
/* global state */
|
|
static FN_GETADDRINFO _pr_getaddrinfo = NULL;
|
|
static FN_FREEADDRINFO _pr_freeaddrinfo = NULL;
|
|
static FN_GETNAMEINFO _pr_getnameinfo = NULL;
|
|
|
|
#define GETADDRINFO_SYMBOL "getaddrinfo"
|
|
#define FREEADDRINFO_SYMBOL "freeaddrinfo"
|
|
#define GETNAMEINFO_SYMBOL "getnameinfo"
|
|
|
|
PRStatus
|
|
_pr_find_getaddrinfo(void)
|
|
{
|
|
PRLibrary *lib;
|
|
#ifdef WIN32
|
|
/*
|
|
* On windows, we need to search ws2_32.dll or wship6.dll
|
|
* (Microsoft IPv6 Technology Preview for Windows 2000) for
|
|
* getaddrinfo and freeaddrinfo. These libraries might not
|
|
* be loaded yet.
|
|
*/
|
|
const char *libname[] = { "ws2_32.dll", "wship6.dll" };
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(libname)/sizeof(libname[0]); i++) {
|
|
lib = PR_LoadLibrary(libname[i]);
|
|
if (!lib) {
|
|
continue;
|
|
}
|
|
_pr_getaddrinfo = (FN_GETADDRINFO)
|
|
PR_FindFunctionSymbol(lib, GETADDRINFO_SYMBOL);
|
|
if (!_pr_getaddrinfo) {
|
|
PR_UnloadLibrary(lib);
|
|
continue;
|
|
}
|
|
_pr_freeaddrinfo = (FN_FREEADDRINFO)
|
|
PR_FindFunctionSymbol(lib, FREEADDRINFO_SYMBOL);
|
|
_pr_getnameinfo = (FN_GETNAMEINFO)
|
|
PR_FindFunctionSymbol(lib, GETNAMEINFO_SYMBOL);
|
|
if (!_pr_freeaddrinfo || !_pr_getnameinfo) {
|
|
PR_UnloadLibrary(lib);
|
|
continue;
|
|
}
|
|
/* Keep the library loaded. */
|
|
return PR_SUCCESS;
|
|
}
|
|
return PR_FAILURE;
|
|
#else
|
|
/*
|
|
* Resolve getaddrinfo by searching all loaded libraries. Then
|
|
* search library containing getaddrinfo for freeaddrinfo.
|
|
*/
|
|
_pr_getaddrinfo = (FN_GETADDRINFO)
|
|
PR_FindFunctionSymbolAndLibrary(GETADDRINFO_SYMBOL, &lib);
|
|
if (!_pr_getaddrinfo) {
|
|
return PR_FAILURE;
|
|
}
|
|
_pr_freeaddrinfo = (FN_FREEADDRINFO)
|
|
PR_FindFunctionSymbol(lib, FREEADDRINFO_SYMBOL);
|
|
_pr_getnameinfo = (FN_GETNAMEINFO)
|
|
PR_FindFunctionSymbol(lib, GETNAMEINFO_SYMBOL);
|
|
PR_UnloadLibrary(lib);
|
|
if (!_pr_freeaddrinfo || !_pr_getnameinfo) {
|
|
return PR_FAILURE;
|
|
}
|
|
return PR_SUCCESS;
|
|
#endif
|
|
}
|
|
|
|
#define GETADDRINFO (*_pr_getaddrinfo)
|
|
#define FREEADDRINFO (*_pr_freeaddrinfo)
|
|
#define GETNAMEINFO (*_pr_getnameinfo)
|
|
|
|
#endif /* _PR_INET6 */
|
|
|
|
#endif /* _PR_HAVE_GETADDRINFO */
|
|
|
|
#if !defined(_PR_HAVE_GETADDRINFO) || defined(_PR_INET6_PROBE)
|
|
/*
|
|
* If getaddrinfo does not exist, then we will fall back on
|
|
* PR_GetHostByName, which requires that we allocate a buffer for the
|
|
* PRHostEnt data structure and its members.
|
|
*/
|
|
typedef struct PRAddrInfoFB {
|
|
char buf[PR_NETDB_BUF_SIZE];
|
|
PRHostEnt hostent;
|
|
PRBool has_cname;
|
|
} PRAddrInfoFB;
|
|
|
|
static PRAddrInfo *
|
|
pr_GetAddrInfoByNameFB(const char *hostname,
|
|
PRUint16 af,
|
|
PRIntn flags)
|
|
{
|
|
PRStatus rv;
|
|
PRAddrInfoFB *ai;
|
|
/* fallback on PR_GetHostByName */
|
|
ai = PR_NEW(PRAddrInfoFB);
|
|
if (!ai) {
|
|
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
|
|
return NULL;
|
|
}
|
|
rv = PR_GetHostByName(hostname, ai->buf, sizeof ai->buf, &ai->hostent);
|
|
if (rv == PR_FAILURE) {
|
|
PR_Free(ai);
|
|
return NULL;
|
|
}
|
|
ai->has_cname = !(flags & PR_AI_NOCANONNAME);
|
|
|
|
return (PRAddrInfo *) ai;
|
|
}
|
|
#endif /* !_PR_HAVE_GETADDRINFO || _PR_INET6_PROBE */
|
|
|
|
PR_IMPLEMENT(PRAddrInfo *) PR_GetAddrInfoByName(const char *hostname,
|
|
PRUint16 af,
|
|
PRIntn flags)
|
|
{
|
|
/* restrict input to supported values */
|
|
if ((af != PR_AF_INET && af != PR_AF_UNSPEC) ||
|
|
(flags & ~ PR_AI_NOCANONNAME) != PR_AI_ADDRCONFIG) {
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return NULL;
|
|
}
|
|
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
#if !defined(_PR_HAVE_GETADDRINFO)
|
|
return pr_GetAddrInfoByNameFB(hostname, af, flags);
|
|
#else
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
return pr_GetAddrInfoByNameFB(hostname, af, flags);
|
|
}
|
|
#endif
|
|
{
|
|
PRADDRINFO *res, hints;
|
|
int rv;
|
|
|
|
/*
|
|
* we assume a RFC 2553 compliant getaddrinfo. this may at some
|
|
* point need to be customized as platforms begin to adopt the
|
|
* RFC 3493.
|
|
*/
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
if (!(flags & PR_AI_NOCANONNAME)) {
|
|
hints.ai_flags |= AI_CANONNAME;
|
|
}
|
|
#ifdef AI_ADDRCONFIG
|
|
/*
|
|
* Propagate AI_ADDRCONFIG to the GETADDRINFO call if PR_AI_ADDRCONFIG
|
|
* is set.
|
|
*
|
|
* Need a workaround for loopback host addresses:
|
|
* The problem is that in glibc and Windows, AI_ADDRCONFIG applies the
|
|
* existence of an outgoing network interface to IP addresses of the
|
|
* loopback interface, due to a strict interpretation of the
|
|
* specification. For example, if a computer does not have any
|
|
* outgoing IPv6 network interface, but its loopback network interface
|
|
* supports IPv6, a getaddrinfo call on "localhost" with AI_ADDRCONFIG
|
|
* won't return the IPv6 loopback address "::1", because getaddrinfo
|
|
* thinks the computer cannot connect to any IPv6 destination,
|
|
* ignoring the remote vs. local/loopback distinction.
|
|
*/
|
|
if ((flags & PR_AI_ADDRCONFIG) &&
|
|
strcmp(hostname, "localhost") != 0 &&
|
|
strcmp(hostname, "localhost.localdomain") != 0 &&
|
|
strcmp(hostname, "localhost6") != 0 &&
|
|
strcmp(hostname, "localhost6.localdomain6") != 0) {
|
|
hints.ai_flags |= AI_ADDRCONFIG;
|
|
}
|
|
#endif
|
|
hints.ai_family = (af == PR_AF_INET) ? AF_INET : AF_UNSPEC;
|
|
|
|
/*
|
|
* it is important to select a socket type in the hints, otherwise we
|
|
* will get back repetitive entries: one for each socket type. since
|
|
* we do not expose ai_socktype through our API, it is okay to do this
|
|
* here. the application may still choose to create a socket of some
|
|
* other type.
|
|
*/
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
|
|
rv = GETADDRINFO(hostname, NULL, &hints, &res);
|
|
#ifdef AI_ADDRCONFIG
|
|
if (rv == EAI_BADFLAGS && (hints.ai_flags & AI_ADDRCONFIG)) {
|
|
hints.ai_flags &= ~AI_ADDRCONFIG;
|
|
rv = GETADDRINFO(hostname, NULL, &hints, &res);
|
|
}
|
|
#endif
|
|
if (rv == 0) {
|
|
return (PRAddrInfo *) res;
|
|
}
|
|
|
|
PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, rv);
|
|
}
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
PR_IMPLEMENT(void) PR_FreeAddrInfo(PRAddrInfo *ai)
|
|
{
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
PR_Free((PRAddrInfoFB *) ai);
|
|
}
|
|
else
|
|
#endif
|
|
FREEADDRINFO((PRADDRINFO *) ai);
|
|
#else
|
|
PR_Free((PRAddrInfoFB *) ai);
|
|
#endif
|
|
}
|
|
|
|
PR_IMPLEMENT(void *) PR_EnumerateAddrInfo(void *iterPtr,
|
|
const PRAddrInfo *base,
|
|
PRUint16 port,
|
|
PRNetAddr *result)
|
|
{
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
PRADDRINFO *ai;
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
/* using PRAddrInfoFB */
|
|
PRIntn iter = (PRIntn)(PRPtrdiff) iterPtr;
|
|
iter = PR_EnumerateHostEnt(iter, &((PRAddrInfoFB *) base)->hostent, port, result);
|
|
if (iter < 0) {
|
|
iter = 0;
|
|
}
|
|
return (void *)(PRPtrdiff) iter;
|
|
}
|
|
#endif
|
|
|
|
if (iterPtr) {
|
|
ai = ((PRADDRINFO *) iterPtr)->ai_next;
|
|
}
|
|
else {
|
|
ai = (PRADDRINFO *) base;
|
|
}
|
|
|
|
while (ai && ai->ai_addrlen > sizeof(PRNetAddr)) {
|
|
ai = ai->ai_next;
|
|
}
|
|
|
|
if (ai) {
|
|
/* copy sockaddr to PRNetAddr */
|
|
memcpy(result, ai->ai_addr, ai->ai_addrlen);
|
|
result->raw.family = ai->ai_addr->sa_family;
|
|
#ifdef _PR_INET6
|
|
if (AF_INET6 == result->raw.family) {
|
|
result->raw.family = PR_AF_INET6;
|
|
}
|
|
#endif
|
|
if (ai->ai_addrlen < sizeof(PRNetAddr)) {
|
|
memset(((char*)result)+ai->ai_addrlen, 0, sizeof(PRNetAddr) - ai->ai_addrlen);
|
|
}
|
|
|
|
if (result->raw.family == PR_AF_INET) {
|
|
result->inet.port = htons(port);
|
|
}
|
|
else {
|
|
result->ipv6.port = htons(port);
|
|
}
|
|
}
|
|
|
|
return ai;
|
|
#else
|
|
/* using PRAddrInfoFB */
|
|
PRIntn iter = (PRIntn) iterPtr;
|
|
iter = PR_EnumerateHostEnt(iter, &((PRAddrInfoFB *) base)->hostent, port, result);
|
|
if (iter < 0) {
|
|
iter = 0;
|
|
}
|
|
return (void *) iter;
|
|
#endif
|
|
}
|
|
|
|
PR_IMPLEMENT(const char *) PR_GetCanonNameFromAddrInfo(const PRAddrInfo *ai)
|
|
{
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
const PRAddrInfoFB *fb = (const PRAddrInfoFB *) ai;
|
|
return fb->has_cname ? fb->hostent.h_name : NULL;
|
|
}
|
|
#endif
|
|
return ((const PRADDRINFO *) ai)->ai_canonname;
|
|
#else
|
|
const PRAddrInfoFB *fb = (const PRAddrInfoFB *) ai;
|
|
return fb->has_cname ? fb->hostent.h_name : NULL;
|
|
#endif
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
static PRStatus pr_StringToNetAddrGAI(const char *string, PRNetAddr *addr)
|
|
{
|
|
PRADDRINFO *res, hints;
|
|
int rv; /* 0 for success, or the error code EAI_xxx */
|
|
PRNetAddr laddr;
|
|
PRStatus status = PR_SUCCESS;
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_flags = AI_NUMERICHOST;
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
|
|
rv = GETADDRINFO(string, NULL, &hints, &res);
|
|
if (rv != 0)
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, rv);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
/* pick up the first addr */
|
|
memcpy(&laddr, res->ai_addr, res->ai_addrlen);
|
|
if (AF_INET6 == res->ai_addr->sa_family)
|
|
{
|
|
addr->ipv6.family = PR_AF_INET6;
|
|
addr->ipv6.ip = laddr.ipv6.ip;
|
|
addr->ipv6.scope_id = laddr.ipv6.scope_id;
|
|
}
|
|
else if (AF_INET == res->ai_addr->sa_family)
|
|
{
|
|
addr->inet.family = PR_AF_INET;
|
|
addr->inet.ip = laddr.inet.ip;
|
|
}
|
|
else
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
status = PR_FAILURE;
|
|
}
|
|
|
|
FREEADDRINFO(res);
|
|
return status;
|
|
}
|
|
#endif /* _PR_HAVE_GETADDRINFO */
|
|
|
|
static PRStatus pr_StringToNetAddrFB(const char *string, PRNetAddr *addr)
|
|
{
|
|
PRIntn rv;
|
|
|
|
rv = pr_inet_aton(string, &addr->inet.ip);
|
|
if (1 == rv)
|
|
{
|
|
addr->raw.family = AF_INET;
|
|
return PR_SUCCESS;
|
|
}
|
|
|
|
PR_ASSERT(0 == rv);
|
|
/* clean up after the failed call */
|
|
memset(&addr->inet.ip, 0, sizeof(addr->inet.ip));
|
|
|
|
rv = StringToV6Addr(string, &addr->ipv6.ip);
|
|
if (1 == rv)
|
|
{
|
|
addr->raw.family = PR_AF_INET6;
|
|
return PR_SUCCESS;
|
|
}
|
|
|
|
PR_ASSERT(0 == rv);
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_StringToNetAddr(const char *string, PRNetAddr *addr)
|
|
{
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
if (!addr || !string || !*string)
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
|
|
#if !defined(_PR_HAVE_GETADDRINFO)
|
|
return pr_StringToNetAddrFB(string, addr);
|
|
#else
|
|
/*
|
|
* getaddrinfo with AI_NUMERICHOST is much slower than pr_inet_aton on some
|
|
* platforms, such as Mac OS X (bug 404399), Linux glibc 2.10 (bug 344809),
|
|
* and most likely others. So we only use it to convert literal IP addresses
|
|
* that contain IPv6 scope IDs, which pr_inet_aton cannot convert.
|
|
*/
|
|
if (!strchr(string, '%')) {
|
|
return pr_StringToNetAddrFB(string, addr);
|
|
}
|
|
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
return pr_StringToNetAddrFB(string, addr);
|
|
}
|
|
#endif
|
|
|
|
return pr_StringToNetAddrGAI(string, addr);
|
|
#endif
|
|
}
|
|
|
|
#if defined(_PR_HAVE_GETADDRINFO)
|
|
static PRStatus pr_NetAddrToStringGNI(
|
|
const PRNetAddr *addr, char *string, PRUint32 size)
|
|
{
|
|
int addrlen;
|
|
const PRNetAddr *addrp = addr;
|
|
#if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
|
|
PRUint16 md_af = addr->raw.family;
|
|
PRNetAddr addrcopy;
|
|
#endif
|
|
int rv; /* 0 for success, or the error code EAI_xxx */
|
|
|
|
#ifdef _PR_INET6
|
|
if (addr->raw.family == PR_AF_INET6)
|
|
{
|
|
md_af = AF_INET6;
|
|
#ifndef _PR_HAVE_SOCKADDR_LEN
|
|
addrcopy = *addr;
|
|
addrcopy.raw.family = md_af;
|
|
addrp = &addrcopy;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
addrlen = PR_NETADDR_SIZE(addr);
|
|
#ifdef _PR_HAVE_SOCKADDR_LEN
|
|
addrcopy = *addr;
|
|
((struct sockaddr*)&addrcopy)->sa_len = addrlen;
|
|
((struct sockaddr*)&addrcopy)->sa_family = md_af;
|
|
addrp = &addrcopy;
|
|
#endif
|
|
rv = GETNAMEINFO((const struct sockaddr *)addrp, addrlen,
|
|
string, size, NULL, 0, NI_NUMERICHOST);
|
|
if (rv != 0)
|
|
{
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, rv);
|
|
return PR_FAILURE;
|
|
}
|
|
return PR_SUCCESS;
|
|
}
|
|
#endif /* _PR_HAVE_GETADDRINFO */
|
|
|
|
#if !defined(_PR_HAVE_GETADDRINFO) || defined(_PR_INET6_PROBE)
|
|
static PRStatus pr_NetAddrToStringFB(
|
|
const PRNetAddr *addr, char *string, PRUint32 size)
|
|
{
|
|
if (PR_AF_INET6 == addr->raw.family)
|
|
{
|
|
#if defined(_PR_HAVE_INET_NTOP)
|
|
if (NULL == inet_ntop(AF_INET6, &addr->ipv6.ip, string, size))
|
|
#else
|
|
if (NULL == V6AddrToString(&addr->ipv6.ip, string, size))
|
|
#endif
|
|
{
|
|
/* the size of the result buffer is inadequate */
|
|
PR_SetError(PR_BUFFER_OVERFLOW_ERROR, 0);
|
|
return PR_FAILURE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (size < 16) {
|
|
goto failed;
|
|
}
|
|
if (AF_INET != addr->raw.family) {
|
|
goto failed;
|
|
}
|
|
else
|
|
{
|
|
unsigned char *byte = (unsigned char*)&addr->inet.ip;
|
|
PR_snprintf(string, size, "%u.%u.%u.%u",
|
|
byte[0], byte[1], byte[2], byte[3]);
|
|
}
|
|
}
|
|
|
|
return PR_SUCCESS;
|
|
|
|
failed:
|
|
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
|
|
return PR_FAILURE;
|
|
|
|
} /* pr_NetAddrToStringFB */
|
|
#endif /* !_PR_HAVE_GETADDRINFO || _PR_INET6_PROBE */
|
|
|
|
PR_IMPLEMENT(PRStatus) PR_NetAddrToString(
|
|
const PRNetAddr *addr, char *string, PRUint32 size)
|
|
{
|
|
if (!_pr_initialized) {
|
|
_PR_ImplicitInitialization();
|
|
}
|
|
|
|
#if !defined(_PR_HAVE_GETADDRINFO)
|
|
return pr_NetAddrToStringFB(addr, string, size);
|
|
#else
|
|
#if defined(_PR_INET6_PROBE)
|
|
if (!_pr_ipv6_is_present()) {
|
|
return pr_NetAddrToStringFB(addr, string, size);
|
|
}
|
|
#endif
|
|
return pr_NetAddrToStringGNI(addr, string, size);
|
|
#endif
|
|
} /* PR_NetAddrToString */
|