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IPv6 cleanups.

Browse Source 
Kurt Roeckx
Andrew Dunstan
This commit is contained in:
Bruce Momjian 2003-06-12 07:36:51 +00:00
parent e5549a272d
commit b4cea00a1f
20 changed files with 905 additions and 586 deletions
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21
config/c-library.m4
View File

@ -1,5 +1,5 @@
# Macros that test various C library quirks
# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.19 2003/05/22 16:39:26 tgl Exp $
# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.20 2003/06/12 07:36:51 momjian Exp $
# PGAC_VAR_INT_TIMEZONE
@ -87,11 +87,10 @@ AC_DEFUN([PGAC_UNION_SEMUN],
# PGAC_STRUCT_SOCKADDR_UN
# -----------------------
# If `struct sockaddr_un' exists, define HAVE_STRUCT_SOCKADDR_UN. If
# it is missing then one could define it as { short int sun_family;
# char sun_path[108]; }. (Requires test for <sys/un.h>!)
# If `struct sockaddr_un' exists, define HAVE_UNIX_SOCKETS.
# (Requires test for <sys/un.h>!)
AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
[AC_CHECK_TYPES([struct sockaddr_un], [], [],
[AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_UNIX_SOCKETS, 1, [Define to 1 if you have unix sockets.])], [],
[#include <sys/types.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
@ -99,6 +98,18 @@ AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
])])# PGAC_STRUCT_SOCKADDR_UN
# PGAC_STRUCT_SOCKADDR_STORAGE
# ----------------------------
# If `struct sockaddr_storage' exists, define HAVE_STRUCT_SOCKADDR_STORAGE. If
# it is missing then one could define it.
AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE],
[AC_CHECK_TYPES([struct sockaddr_storage], [], [],
[#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])])# PGAC_STRUCT_SOCKADDR_STORAGE
# PGAC_STRUCT_ADDRINFO
# -----------------------
# If `struct addrinfo' exists, define HAVE_STRUCT_ADDRINFO.

65
configure vendored
View File

@ -9892,6 +9892,71 @@ cat >>confdefs.h <<_ACEOF
_ACEOF
cat >>confdefs.h <<\_ACEOF
#define HAVE_UNIX_SOCKETS 1
_ACEOF
fi
echo "$as_me:$LINENO: checking for struct sockaddr_storage" >&5
echo $ECHO_N "checking for struct sockaddr_storage... $ECHO_C" >&6
if test "${ac_cv_type_struct_sockaddr_storage+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
if ((struct sockaddr_storage *) 0)
return 0;
if (sizeof (struct sockaddr_storage))
return 0;
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_type_struct_sockaddr_storage=yes
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
ac_cv_type_struct_sockaddr_storage=no
fi
rm -f conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_type_struct_sockaddr_storage" >&5
echo "${ECHO_T}$ac_cv_type_struct_sockaddr_storage" >&6
if test $ac_cv_type_struct_sockaddr_storage = yes; then
cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SOCKADDR_STORAGE 1
_ACEOF
fi
echo "$as_me:$LINENO: checking for struct addrinfo" >&5

3
configure.in
View File

@ -1,5 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
dnl $Header: /cvsroot/pgsql/configure.in,v 1.258 2003/06/11 06:56:06 momjian Exp $
dnl $Header: /cvsroot/pgsql/configure.in,v 1.259 2003/06/12 07:36:50 momjian Exp $
dnl
dnl Developers, please strive to achieve this order:
dnl
@ -789,6 +789,7 @@ PGAC_C_FUNCNAME_SUPPORT
PGAC_STRUCT_TIMEZONE
PGAC_UNION_SEMUN
PGAC_STRUCT_SOCKADDR_UN
PGAC_STRUCT_SOCKADDR_STORAGE
PGAC_STRUCT_ADDRINFO
AC_CHECK_TYPES([struct cmsgcred, struct fcred, struct sockcred], [], [],

20
src/backend/libpq/auth.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.101 2003/04/25 03:28:55 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.102 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -415,15 +415,13 @@ ClientAuthentication(Port *port)
* out the less clueful good guys.
*/
{
const char *hostinfo = "localhost";
#ifdef HAVE_IPV6
char ip_hostinfo[INET6_ADDRSTRLEN];
#else
char ip_hostinfo[INET_ADDRSTRLEN];
#endif
if (isAF_INETx(port->raddr.sa.sa_family) )
hostinfo = SockAddr_ntop(&port->raddr, ip_hostinfo,
sizeof(ip_hostinfo), 1);
char hostinfo[NI_MAXHOST];
getnameinfo(
(struct sockaddr *)&port->raddr.addr,
port->raddr.salen,
hostinfo, sizeof(hostinfo),
NULL, 0, NI_NUMERICHOST);
elog(FATAL,
"No pg_hba.conf entry for host %s, user %s, database %s",
@ -464,7 +462,7 @@ ClientAuthentication(Port *port)
elog(FATAL, "pg_local_sendauth: can't do setsockopt: %m");
}
#endif
if (port->raddr.sa.sa_family == AF_UNIX)
if (port->raddr.addr.ss_family == AF_UNIX)
sendAuthRequest(port, AUTH_REQ_SCM_CREDS);
#endif
status = authident(port);

205
src/backend/libpq/hba.c
View File

@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.102 2003/06/12 07:00:57 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.103 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -542,9 +542,14 @@ static void
parse_hba(List *line, hbaPort *port, bool *found_p, bool *error_p)
{
int line_number;
char *token;
char *db;
char *user;
char *token;
char *db;
char *user;
struct addrinfo *file_ip_addr = NULL, *file_ip_mask = NULL;
struct addrinfo hints;
struct sockaddr_storage *mask;
char *cidr_slash;
int ret;
Assert(line != NIL);
line_number = lfirsti(line);
@ -582,12 +587,11 @@ parse_hba(List *line, hbaPort *port, bool *found_p, bool *error_p)
port->auth_method == uaKrb5)
goto hba_syntax;
if (port->raddr.sa.sa_family != AF_UNIX)
if (port->raddr.addr.ss_family != AF_UNIX)
return;
}
else if (strcmp(token, "host") == 0 || strcmp(token, "hostssl") == 0)
{
SockAddr file_ip_addr, mask;
if (strcmp(token, "hostssl") == 0)
{
@ -618,26 +622,77 @@ parse_hba(List *line, hbaPort *port, bool *found_p, bool *error_p)
goto hba_syntax;
user = lfirst(line);
/* Read the IP address field. */
/* Read the IP address field. (with or without CIDR netmask) */
line = lnext(line);
if (!line)
goto hba_syntax;
token = lfirst(line);
if(SockAddr_pton(&file_ip_addr, token) < 0)
goto hba_syntax;
/* Check if it has a CIDR suffix and if so isolate it */
cidr_slash = index(token,'/');
if (cidr_slash)
{
*cidr_slash = '\0';
}
/* Read the mask field. */
line = lnext(line);
if (!line)
goto hba_syntax;
token = lfirst(line);
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = 0;
hints.ai_protocol = 0;
hints.ai_addrlen = 0;
hints.ai_canonname = NULL;
hints.ai_addr = NULL;
hints.ai_next = NULL;
if(SockAddr_pton(&mask, token) < 0)
/* Get the IP address either way */
ret = getaddrinfo2(token, NULL, &hints, &file_ip_addr);
if (ret)
{
elog(LOG, "getaddrinfo2() returned %d", ret);
if (cidr_slash)
{
*cidr_slash = '/';
}
goto hba_syntax;
}
if(file_ip_addr.sa.sa_family != mask.sa.sa_family)
goto hba_syntax;
if (file_ip_addr->ai_family != port->raddr.addr.ss_family)
{
/* Wrong address family. */
freeaddrinfo2(hints.ai_family, file_ip_addr);
return;
}
/* Get the netmask */
if (cidr_slash)
{
*cidr_slash = '/';
if (SockAddr_cidr_mask(&mask, cidr_slash + 1,
file_ip_addr->ai_family) < 0)
{
goto hba_syntax;
}
}
else
{
/* Read the mask field. */
line = lnext(line);
if (!line)
goto hba_syntax;
token = lfirst(line);
ret = getaddrinfo2(token, NULL, &hints, &file_ip_mask);
if (ret)
{
goto hba_syntax;
}
mask = (struct sockaddr_storage *)file_ip_mask->ai_addr;
if(file_ip_addr->ai_family != mask->ss_family)
{
goto hba_syntax;
}
}
/* Read the rest of the line. */
line = lnext(line);
@ -648,9 +703,16 @@ parse_hba(List *line, hbaPort *port, bool *found_p, bool *error_p)
goto hba_syntax;
/* Must meet network restrictions */
if (!isAF_INETx(port->raddr.sa.sa_family) ||
!rangeSockAddr(&port->raddr, &file_ip_addr, &mask))
return;
if (!rangeSockAddr(&port->raddr.addr,
(struct sockaddr_storage *)file_ip_addr->ai_addr, mask))
{
goto hba_freeaddr;
}
freeaddrinfo2(hints.ai_family, file_ip_addr);
if (file_ip_mask)
{
freeaddrinfo2(hints.ai_family, file_ip_mask);
}
}
else
goto hba_syntax;
@ -670,6 +732,16 @@ hba_syntax:
line ? (const char *) lfirst(line) : "(end of line)");
*error_p = true;
hba_freeaddr:
if (file_ip_addr)
{
freeaddrinfo2(hints.ai_family, file_ip_addr);
}
if (file_ip_mask)
{
freeaddrinfo2(hints.ai_family, file_ip_mask);
}
return;
}
@ -1106,10 +1178,8 @@ interpret_ident_response(char *ident_response,
* But iff we're unable to get the information from ident, return false.
*/
static bool
ident_inet(const struct in_addr remote_ip_addr,
const struct in_addr local_ip_addr,
const ushort remote_port,
const ushort local_port,
ident_inet(const SockAddr remote_addr,
const SockAddr local_addr,
char *ident_user)
{
int sock_fd, /* File descriptor for socket on which we
@ -1117,8 +1187,39 @@ ident_inet(const struct in_addr remote_ip_addr,
rc; /* Return code from a locally called
* function */
bool ident_return;
char remote_addr_s[NI_MAXHOST];
char remote_port[NI_MAXSERV];
char local_addr_s[NI_MAXHOST];
char local_port[NI_MAXSERV];
char ident_port[NI_MAXSERV];
struct addrinfo *ident_serv = NULL, *la = NULL, hints;
/* Might look a little weird to first convert it to text and
* then back to sockaddr, but it's protocol indepedant. */
getnameinfo((struct sockaddr *)&remote_addr.addr,
remote_addr.salen, remote_addr_s, sizeof(remote_addr_s),
remote_port, sizeof(remote_port),
NI_NUMERICHOST|NI_NUMERICSERV);
getnameinfo((struct sockaddr *)&local_addr.addr,
local_addr.salen, local_addr_s, sizeof(local_addr_s),
local_port, sizeof(local_port),
NI_NUMERICHOST|NI_NUMERICSERV);
snprintf(ident_port, sizeof(ident_port), "%d", IDENT_PORT);
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = remote_addr.addr.ss_family;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = 0;
hints.ai_addrlen = 0;
hints.ai_canonname = NULL;
hints.ai_addr = NULL;
hints.ai_next = NULL;
getaddrinfo2(remote_addr_s, ident_port, &hints, &ident_serv);
getaddrinfo2(local_addr_s, NULL, &hints, &la);
sock_fd = socket(ident_serv->ai_family, ident_serv->ai_socktype,
ident_serv->ai_protocol);
sock_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
if (sock_fd == -1)
{
elog(LOG, "Failed to create socket on which to talk to Ident server: %m");
@ -1126,42 +1227,27 @@ ident_inet(const struct in_addr remote_ip_addr,
}
else
{
struct sockaddr_in ident_server;
struct sockaddr_in la;
/*
* Socket address of Ident server on the system from which client
* is attempting to connect to us.
*/
ident_server.sin_family = AF_INET;
ident_server.sin_port = htons(IDENT_PORT);
ident_server.sin_addr = remote_ip_addr;
/*
* Bind to the address which the client originally contacted,
* otherwise the ident server won't be able to match up the right
* connection. This is necessary if the PostgreSQL server is
* running on an IP alias.
*/
memset(&la, 0, sizeof(la));
la.sin_family = AF_INET;
la.sin_addr = local_ip_addr;
rc = bind(sock_fd, (struct sockaddr *) & la, sizeof(la));
rc = bind(sock_fd, la->ai_addr, la->ai_addrlen);
if (rc == 0)
{
rc = connect(sock_fd,
(struct sockaddr *) & ident_server, sizeof(ident_server));
rc = connect(sock_fd, ident_serv->ai_addr,
ident_serv->ai_addrlen);
}
if (rc != 0)
{
/* save_errno is in case inet_ntoa changes errno */
int save_errno = errno;
int save_errno = errno;
elog(LOG, "Unable to connect to Ident server on the host which is "
"trying to connect to Postgres "
"(IP address %s, Port %d): %s",
inet_ntoa(remote_ip_addr), IDENT_PORT,
strerror(save_errno));
"(Address %s, Port %s): %s", remote_addr_s,
ident_port, strerror(save_errno));
ident_return = false;
}
else
@ -1169,8 +1255,8 @@ ident_inet(const struct in_addr remote_ip_addr,
char ident_query[80];
/* The query we send to the Ident server */
snprintf(ident_query, sizeof(ident_query), "%d,%d\n",
ntohs(remote_port), ntohs(local_port));
snprintf(ident_query, sizeof(ident_query), "%s,%s\r\n",
remote_port, local_port);
/* loop in case send is interrupted */
do
{
@ -1181,10 +1267,9 @@ ident_inet(const struct in_addr remote_ip_addr,
int save_errno = errno;
elog(LOG, "Unable to send query to Ident server on the host which is "
"trying to connect to Postgres (Host %s, Port %d), "
"trying to connect to Postgres (Host %s, Port %s), "
"even though we successfully connected to it: %s",
inet_ntoa(remote_ip_addr), IDENT_PORT,
strerror(save_errno));
remote_addr_s, ident_port, strerror(save_errno));
ident_return = false;
}
else
@ -1199,9 +1284,9 @@ ident_inet(const struct in_addr remote_ip_addr,
elog(LOG, "Unable to receive response from Ident server "
"on the host which is "
"trying to connect to Postgres (Host %s, Port %d), "
"trying to connect to Postgres (Host %s, Port %s), "
"even though we successfully sent our query to it: %s",
inet_ntoa(remote_ip_addr), IDENT_PORT,
remote_addr_s, ident_port,
strerror(save_errno));
ident_return = false;
}
@ -1215,6 +1300,8 @@ ident_inet(const struct in_addr remote_ip_addr,
closesocket(sock_fd);
}
}
freeaddrinfo2(hints.ai_family, la);
freeaddrinfo2(hints.ai_family, ident_serv);
return ident_return;
}
@ -1371,13 +1458,13 @@ authident(hbaPort *port)
{
char ident_user[IDENT_USERNAME_MAX + 1];
switch (port->raddr.sa.sa_family)
switch (port->raddr.addr.ss_family)
{
case AF_INET:
if (!ident_inet(port->raddr.in.sin_addr,
port->laddr.in.sin_addr,
port->raddr.in.sin_port,
port->laddr.in.sin_port, ident_user))
#ifdef HAVE_IPV6
case AF_INET6:
#endif
if (!ident_inet(port->raddr, port->laddr, ident_user))
return STATUS_ERROR;
break;
case AF_UNIX:

237
src/backend/libpq/ip.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/ip.c,v 1.11 2003/06/12 07:00:57 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/ip.c,v 1.12 2003/06/12 07:36:51 momjian Exp $
*
* This file and the IPV6 implementation were initially provided by
* Nigel Kukard <nkukard@lbsd.net>, Linux Based Systems Design
@ -36,20 +36,19 @@
#include "libpq/ip.h"
static int rangeSockAddrAF_INET(const SockAddr *addr,
const SockAddr *netaddr,
const SockAddr *netmask);
static int rangeSockAddrAF_INET(const struct sockaddr_in *addr,
const struct sockaddr_in *netaddr,
const struct sockaddr_in *netmask);
#ifdef HAVE_IPV6
static int rangeSockAddrAF_INET6(const SockAddr *addr,
const SockAddr *netaddr,
const SockAddr *netmask);
static void convSockAddr6to4(const SockAddr *src, SockAddr *dst);
static int rangeSockAddrAF_INET6(const struct sockaddr_in6 *addr,
const struct sockaddr_in6 *netaddr,
const struct sockaddr_in6 *netmask);
#endif
#ifdef HAVE_UNIX_SOCKETS
static int getaddrinfo_unix(const char *path, const struct addrinfo *hintsp,
struct addrinfo **result);
#ifdef HAVE_UNIX_SOCKETS
static int getaddrinfo_unix(const char *path,
const struct addrinfo *hintsp,
struct addrinfo **result);
#endif
@ -127,6 +126,11 @@ getaddrinfo_unix(const char *path, const struct addrinfo *hintsp,
MemSet(&hints, 0, sizeof(hints));
if (strlen(path) >= sizeof(unp->sun_path))
{
return EAI_FAIL;
}
if (hintsp == NULL)
{
hints.ai_family = AF_UNIX;
@ -141,7 +145,7 @@ getaddrinfo_unix(const char *path, const struct addrinfo *hintsp,
if (hints.ai_family != AF_UNIX)
{
/* shouldn't have been called */
return EAI_ADDRFAMILY;
return EAI_FAIL;
}
aip = calloc(1, sizeof(struct addrinfo));
@ -166,8 +170,6 @@ getaddrinfo_unix(const char *path, const struct addrinfo *hintsp,
aip->ai_addr = (struct sockaddr *) unp;
aip->ai_addrlen = sizeof(struct sockaddr_un);
if (strlen(path) >= sizeof(unp->sun_path))
return EAI_SERVICE;
strcpy(unp->sun_path, path);
#if SALEN
@ -178,121 +180,110 @@ getaddrinfo_unix(const char *path, const struct addrinfo *hintsp,
}
#endif /* HAVE_UNIX_SOCKETS */
/* ----------
* SockAddr_ntop - set IP address string from SockAddr
*
* parameters... sa : SockAddr union
* dst : buffer for address string
* cnt : sizeof dst
* v4conv: non-zero: if address is IPv4 mapped IPv6 address then
* convert to IPv4 address.
* returns... pointer to dst
* if sa.sa_family is not AF_INET or AF_INET6 dst is set as empy string.
* ----------
*/
char *
SockAddr_ntop(const SockAddr *sa, char *dst, size_t cnt, int v4conv)
int
rangeSockAddr(const struct sockaddr_storage *addr,
const struct sockaddr_storage *netaddr,
const struct sockaddr_storage *netmask)
{
switch (sa->sa.sa_family)
{
case AF_INET:
if (addr->ss_family == AF_INET)
return rangeSockAddrAF_INET((struct sockaddr_in *)addr,
(struct sockaddr_in *)netaddr,
(struct sockaddr_in *)netmask);
#ifdef HAVE_IPV6
inet_ntop(AF_INET, &sa->in.sin_addr, dst, cnt);
#else
StrNCpy(dst, inet_ntoa(sa->in.sin_addr), cnt);
else if (addr->ss_family == AF_INET6)
return rangeSockAddrAF_INET6((struct sockaddr_in6 *)addr,
(struct sockaddr_in6 *)netaddr,
(struct sockaddr_in6 *)netmask);
#endif
break;
#ifdef HAVE_IPV6
case AF_INET6:
inet_ntop(AF_INET6, &sa->in6.sin6_addr, dst, cnt);
if (v4conv && IN6_IS_ADDR_V4MAPPED(&sa->in6.sin6_addr))
strcpy(dst, dst + 7);
break;
#endif
default:
dst[0] = '\0';
break;
}
return dst;
else
return 0;
}
/*
* SockAddr_pton - IPv6 pton
* SockAddr_cidr_mask - make a network mask of the appropriate family
* and required number of significant bits
*
* Note: Returns a static pointer for the mask, so it's not thread safe,
* and a second call will overwrite the data.
*/
int
SockAddr_pton(SockAddr *sa, const char *src)
SockAddr_cidr_mask(struct sockaddr_storage **mask, char *numbits, int family)
{
int family = AF_INET;
#ifdef HAVE_IPV6
if (strchr(src, ':'))
family = AF_INET6;
long bits;
char *endptr;
static struct sockaddr_storage sock;
struct sockaddr_in mask4;
#ifdef HAVE_IPV6
struct sockaddr_in6 mask6;
#endif
sa->sa.sa_family = family;
bits = strtol(numbits, &endptr, 10);
if (*numbits == '\0' || *endptr != '\0')
{
return -1;
}
if ((bits < 0) || (family == AF_INET && bits > 32)
#ifdef HAVE_IPV6
|| (family == AF_INET6 && bits > 128)
#endif
)
{
return -1;
}
*mask = &sock;
switch (family)
{
case AF_INET:
#ifdef HAVE_IPV6
return inet_pton(AF_INET, src, &sa->in.sin_addr);
#else
return inet_aton(src, &sa->in.sin_addr);
#endif
mask4.sin_addr.s_addr =
htonl((0xffffffffUL << (32 - bits))
& 0xffffffffUL);
memcpy(&sock, &mask4, sizeof(mask4));
break;
#ifdef HAVE_IPV6
case AF_INET6:
return inet_pton(AF_INET6, src, &sa->in6.sin6_addr);
{
int i;
for (i = 0; i < 16; i++)
{
if (bits <= 0)
{
mask6.sin6_addr.s6_addr[i] = 0;
}
else if (bits >= 8)
{
mask6.sin6_addr.s6_addr[i] = 0xff;
}
else
{
mask6.sin6_addr.s6_addr[i] =
(0xff << (8 - bits)) & 0xff;
}
bits -= 8;
}
memcpy(&sock, &mask6, sizeof(mask6));
break;
}
#endif
default:
return -1;
}
sock.ss_family = family;
return 0;
}
/*
* isAF_INETx - check to see if sa is AF_INET or AF_INET6
*/
int
isAF_INETx(const int family)
{
if (family == AF_INET
#ifdef HAVE_IPV6
|| family == AF_INET6
#endif
)
return 1;
else
return 0;
}
int
rangeSockAddr(const SockAddr *addr, const SockAddr *netaddr,
const SockAddr *netmask)
rangeSockAddrAF_INET(const struct sockaddr_in *addr, const struct sockaddr_in *netaddr,
const struct sockaddr_in *netmask)
{
if (addr->sa.sa_family == AF_INET)
return rangeSockAddrAF_INET(addr, netaddr, netmask);
#ifdef HAVE_IPV6
else if (addr->sa.sa_family == AF_INET6)
return rangeSockAddrAF_INET6(addr, netaddr, netmask);
#endif
else
return 0;
}
static int
rangeSockAddrAF_INET(const SockAddr *addr, const SockAddr *netaddr,
const SockAddr *netmask)
{
if (addr->sa.sa_family != AF_INET ||
netaddr->sa.sa_family != AF_INET ||
netmask->sa.sa_family != AF_INET)
return 0;
if (((addr->in.sin_addr.s_addr ^ netaddr->in.sin_addr.s_addr) &
netmask->in.sin_addr.s_addr) == 0)
if (((addr->sin_addr.s_addr ^ netaddr->sin_addr.s_addr) &
netmask->sin_addr.s_addr) == 0)
return 1;
else
return 0;
@ -300,46 +291,22 @@ rangeSockAddrAF_INET(const SockAddr *addr, const SockAddr *netaddr,
#ifdef HAVE_IPV6
static int
rangeSockAddrAF_INET6(const SockAddr *addr, const SockAddr *netaddr,
const SockAddr *netmask)
int
rangeSockAddrAF_INET6(const struct sockaddr_in6 *addr,
const struct sockaddr_in6 *netaddr,
const struct sockaddr_in6 *netmask)
{
int i;
if (IN6_IS_ADDR_V4MAPPED(&addr->in6.sin6_addr))
{
SockAddr addr4;
convSockAddr6to4(addr, &addr4);
if (rangeSockAddrAF_INET(&addr4, netaddr, netmask))
return 1;
}
if (netaddr->sa.sa_family != AF_INET6 ||
netmask->sa.sa_family != AF_INET6)
return 0;
for (i = 0; i < 16; i++)
{
if (((addr->in6.sin6_addr.s6_addr[i] ^ netaddr->in6.sin6_addr.s6_addr[i]) &
netmask->in6.sin6_addr.s6_addr[i]) != 0)
if (((addr->sin6_addr.s6_addr[i] ^ netaddr->sin6_addr.s6_addr[i]) &
netmask->sin6_addr.s6_addr[i]) != 0)
return 0;
}
return 1;
}
#endif
static void
convSockAddr6to4(const SockAddr *src, SockAddr *dst)
{
MemSet(dst, 0, sizeof(*dst));
dst->in.sin_family = AF_INET;
/* both src and dst are assumed to be in network byte order */
dst->in.sin_port = src->in6.sin6_port;
memcpy(&dst->in.sin_addr.s_addr,
((char *) (&src->in6.sin6_addr.s6_addr)) + 12,
sizeof(struct in_addr));
}
#endif /* HAVE_IPV6 */

4
src/backend/libpq/pg_hba.conf.sample
View File

@ -46,4 +46,6 @@
local all all trust
host all all 127.0.0.1 255.255.255.255 trust
host all all ::1 ffff:ffff:ffff:ffff:ffff:ffff trust
host all all ::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff trust
host all all ::ffff:127.0.0.1/128 trust

213
src/backend/libpq/pqcomm.c
View File

@ -30,7 +30,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.156 2003/06/09 17:59:19 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.157 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -199,33 +199,30 @@ StreamDoUnlink(void)
int
StreamServerPort(int family, char *hostName, unsigned short portNumber,
char *unixSocketName, int *fdP)
char *unixSocketName, int ListenSocket[], int MaxListen)
{
int fd,
err;
int maxconn;
int one = 1;
int ret;
char portNumberStr[64];
char *service;
struct addrinfo *addrs = NULL;
struct addrinfo hint;
#ifdef HAVE_UNIX_SOCKETS
Assert(family == AF_UNIX || isAF_INETx(family));
#else
Assert(isAF_INETx(family));
#endif
char portNumberStr[64];
char *service;
struct addrinfo *addrs = NULL, *addr;
struct addrinfo hint;
int listen_index = 0;
int added = 0;
/* Initialize hint structure */
MemSet(&hint, 0, sizeof(hint));
hint.ai_family = family;
hint.ai_flags = AI_PASSIVE;
hint.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
hint.ai_socktype = SOCK_STREAM;
#ifdef HAVE_UNIX_SOCKETS
if (family == AF_UNIX)
{
/* Lock_AF_UNIX will also fill in sock_path. */
if (Lock_AF_UNIX(portNumber, unixSocketName) != STATUS_OK)
return STATUS_ERROR;
service = sock_path;
@ -246,73 +243,132 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
return STATUS_ERROR;
}
if ((fd = socket(family, SOCK_STREAM, 0)) < 0)
for (addr = addrs; addr; addr = addr->ai_next)
{
elog(LOG, "server socket failure: socket(): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
}
if (isAF_INETx(family))
{
if ((setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one,
sizeof(one))) == -1)
if (!IS_AF_UNIX(family) && IS_AF_UNIX(addr->ai_family))
{
elog(LOG, "server socket failure: setsockopt(SO_REUSEADDR): %s",
/* Only set up a unix domain socket when
* they really asked for it. The service/port
* is different in that case. */
continue;
}
/* See if there is still room to add 1 more socket. */
for (; listen_index < MaxListen; listen_index++)
{
if (ListenSocket[listen_index] == -1)
{
break;
}
}
if (listen_index == MaxListen)
{
/* Nothing found. */
break;
}
if ((fd = socket(addr->ai_family, addr->ai_socktype,
addr->ai_protocol)) < 0)
{
elog(LOG, "server socket failure: socket(): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
continue;
}
}
Assert(addrs->ai_next == NULL && addrs->ai_family == family);
err = bind(fd, addrs->ai_addr, addrs->ai_addrlen);
if (err < 0)
{
elog(LOG, "server socket failure: bind(): %s\n"
"\tIs another postmaster already running on port %d?",
strerror(errno), (int) portNumber);
if (family == AF_UNIX)
elog(LOG, "\tIf not, remove socket node (%s) and retry.",
sock_path);
else
elog(LOG, "\tIf not, wait a few seconds and retry.");
freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
}
#ifdef HAVE_UNIX_SOCKETS
if (family == AF_UNIX)
{
if (Setup_AF_UNIX() != STATUS_OK)
if (!IS_AF_UNIX(addr->ai_family))
{
freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
if ((setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
(char *) &one, sizeof(one))) == -1)
{
elog(LOG, "server socket failure: "
"setsockopt(SO_REUSEADDR): %s",
strerror(errno));
closesocket(fd);
continue;
}
}
#ifdef IPV6_V6ONLY
if (addr->ai_family == AF_INET6)
{
if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
(char *)&one, sizeof(one)) == -1)
{
elog(LOG, "server socket failure: "
"setsockopt(IPV6_V6ONLY): %s",
strerror(errno));
closesocket(fd);
continue;
}
}
}
#endif
/*
* Select appropriate accept-queue length limit. PG_SOMAXCONN is only
* intended to provide a clamp on the request on platforms where an
* overly large request provokes a kernel error (are there any?).
*/
maxconn = MaxBackends * 2;
if (maxconn > PG_SOMAXCONN)
maxconn = PG_SOMAXCONN;
/*
* Note: This might fail on some OS's, like Linux
* older than 2.4.21-pre3, that don't have the IPV6_V6ONLY
* socket option, and map ipv4 addresses to ipv6. It will
* show ::ffff:ipv4 for all ipv4 connections.
*/
err = bind(fd, addr->ai_addr, addr->ai_addrlen);
if (err < 0)
{
elog(LOG, "server socket failure: bind(): %s\n"
"\tIs another postmaster already running on "
"port %d?", strerror(errno), (int) portNumber);
if (addr->ai_family == AF_UNIX)
{
elog(LOG, "\tIf not, remove socket node (%s) "
"and retry.", sock_path);
}
else
{
elog(LOG, "\tIf not, wait a few seconds and "
"retry.");
}
closesocket(fd);
continue;
}
err = listen(fd, maxconn);
if (err < 0)
{
elog(LOG, "server socket failure: listen(): %s",
strerror(errno));
freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
#ifdef HAVE_UNIX_SOCKETS
if (addr->ai_family == AF_UNIX)
{
if (Setup_AF_UNIX() != STATUS_OK)
{
closesocket(fd);
break;
}
}
#endif
/*
* Select appropriate accept-queue length limit. PG_SOMAXCONN
* is only intended to provide a clamp on the request on
* platforms where an overly large request provokes a kernel
* error (are there any?).
*/
maxconn = MaxBackends * 2;
if (maxconn > PG_SOMAXCONN)
maxconn = PG_SOMAXCONN;
err = listen(fd, maxconn);
if (err < 0)
{
elog(LOG, "server socket failure: listen(): %s",
strerror(errno));
closesocket(fd);
continue;
}
ListenSocket[listen_index] = fd;
added++;
}
*fdP = fd;
freeaddrinfo2(hint.ai_family, addrs);
freeaddrinfo(addrs);
if (!added)
{
return STATUS_ERROR;
}
return STATUS_OK;
}
@ -325,10 +381,7 @@ StreamServerPort(int family, char *hostName, unsigned short portNumber,
static int
Lock_AF_UNIX(unsigned short portNumber, char *unixSocketName)
{
SockAddr saddr; /* just used to get socket path */
UNIXSOCK_PATH(saddr.un, portNumber, unixSocketName);
strcpy(sock_path, saddr.un.sun_path);
UNIXSOCK_PATH(sock_path, portNumber, unixSocketName);
/*
* Grab an interlock file associated with the socket file.
@ -422,13 +475,11 @@ Setup_AF_UNIX(void)
int
StreamConnection(int server_fd, Port *port)
{
ACCEPT_TYPE_ARG3 addrlen;
/* accept connection (and fill in the client (remote) address) */
addrlen = sizeof(port->raddr);
port->raddr.salen = sizeof(port->raddr.addr);
if ((port->sock = accept(server_fd,
(struct sockaddr *) &port->raddr,
&addrlen)) < 0)
(struct sockaddr *) &port->raddr.addr,
&port->raddr.salen)) < 0)
{
elog(LOG, "StreamConnection: accept() failed: %m");
return STATUS_ERROR;
@ -444,25 +495,27 @@ StreamConnection(int server_fd, Port *port)
#endif
/* fill in the server (local) address */
addrlen = sizeof(port->laddr);
if (getsockname(port->sock, (struct sockaddr *) & port->laddr,
&addrlen) < 0)
port->laddr.salen = sizeof(port->laddr.addr);
if (getsockname(port->sock, (struct sockaddr *) & port->laddr.addr,
&port->laddr.salen) < 0)
{
elog(LOG, "StreamConnection: getsockname() failed: %m");
return STATUS_ERROR;
}
/* select NODELAY and KEEPALIVE options if it's a TCP connection */
if (isAF_INETx(port->laddr.sa.sa_family))
if (!IS_AF_UNIX(port->laddr.addr.ss_family))
{
int on = 1;
#ifdef TCP_NODELAY
if (setsockopt(port->sock, IPPROTO_TCP, TCP_NODELAY,
(char *) &on, sizeof(on)) < 0)
{
elog(LOG, "StreamConnection: setsockopt(TCP_NODELAY) failed: %m");
return STATUS_ERROR;
}
#endif
if (setsockopt(port->sock, SOL_SOCKET, SO_KEEPALIVE,
(char *) &on, sizeof(on)) < 0)
{

61
src/backend/postmaster/pgstat.c
View File

@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2003, PostgreSQL Global Development Group
*
* $Header: /cvsroot/pgsql/src/backend/postmaster/pgstat.c,v 1.36 2003/05/15 16:35:29 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/pgstat.c,v 1.37 2003/06/12 07:36:51 momjian Exp $
* ----------
*/
#include "postgres.h"
@ -22,7 +22,9 @@
#include <fcntl.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
@ -36,6 +38,7 @@
#include "catalog/pg_shadow.h"
#include "catalog/pg_database.h"
#include "libpq/pqsignal.h"
#include "libpq/libpq.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "utils/memutils.h"
@ -69,7 +72,7 @@ bool pgstat_is_running = false;
*/
static int pgStatSock = -1;
static int pgStatPipe[2];
static struct sockaddr_in pgStatAddr;
static struct sockaddr_storage pgStatAddr;
static int pgStatPmPipe[2] = {-1, -1};
static int pgStatPid;
@ -141,7 +144,9 @@ static void pgstat_recv_resetcounter(PgStat_MsgResetcounter *msg, int len);
void
pgstat_init(void)
{
int alen;
ACCEPT_TYPE_ARG3 alen;
struct addrinfo *addr, hints;
int ret;
/*
* Force start of collector daemon if something to collect
@ -174,7 +179,24 @@ pgstat_init(void)
/*
* Create the UDP socket for sending and receiving statistic messages
*/
if ((pgStatSock = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
hints.ai_flags = AI_PASSIVE;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = 0;
hints.ai_addrlen = 0;
hints.ai_addr = NULL;
hints.ai_canonname = NULL;
hints.ai_next = NULL;
ret = getaddrinfo2("localhost", NULL, &hints, &addr);
if (ret || !addr)
{
elog(LOG, "PGSTAT: getaddrinfo2() failed: %s",
gai_strerror(ret));
goto startup_failed;
}
if ((pgStatSock = socket(addr->ai_family,
addr->ai_socktype, addr->ai_protocol)) < 0)
{
elog(LOG, "PGSTAT: socket() failed: %m");
goto startup_failed;
@ -184,16 +206,16 @@ pgstat_init(void)
* Bind it to a kernel assigned port on localhost and get the assigned
* port via getsockname().
*/
pgStatAddr.sin_family = AF_INET;
pgStatAddr.sin_port = htons(0);
inet_aton("127.0.0.1", &(pgStatAddr.sin_addr));
alen = sizeof(pgStatAddr);
if (bind(pgStatSock, (struct sockaddr *) & pgStatAddr, alen) < 0)
if (bind(pgStatSock, addr->ai_addr, addr->ai_addrlen) < 0)
{
elog(LOG, "PGSTAT: bind(127.0.0.1) failed: %m");
elog(LOG, "PGSTAT: bind() failed: %m");
goto startup_failed;
}
if (getsockname(pgStatSock, (struct sockaddr *) & pgStatAddr, &alen) < 0)
freeaddrinfo2(hints.ai_family, addr);
addr = NULL;
alen = sizeof(pgStatAddr);
if (getsockname(pgStatSock, (struct sockaddr *)&pgStatAddr, &alen) < 0)
{
elog(LOG, "PGSTAT: getsockname() failed: %m");
goto startup_failed;
@ -235,6 +257,11 @@ pgstat_init(void)
return;
startup_failed:
if (addr)
{
freeaddrinfo2(hints.ai_family, addr);
}
if (pgStatSock >= 0)
closesocket(pgStatSock);
pgStatSock = -1;
@ -1496,7 +1523,7 @@ pgstat_recvbuffer(void)
int msg_send = 0; /* next send index in buffer */
int msg_recv = 0; /* next receive index */
int msg_have = 0; /* number of bytes stored */
struct sockaddr_in fromaddr;
struct sockaddr_storage fromaddr;
int fromlen;
bool overflow = false;
@ -1601,9 +1628,9 @@ pgstat_recvbuffer(void)
if (FD_ISSET(pgStatSock, &rfds))
{
fromlen = sizeof(fromaddr);
len = recvfrom(pgStatSock,
(char *) &input_buffer, sizeof(PgStat_Msg), 0,
(struct sockaddr *) &fromaddr, &fromlen);
len = recvfrom(pgStatSock, (char *) &input_buffer,
sizeof(PgStat_Msg), 0,
(struct sockaddr *) &fromaddr, &fromlen);
if (len < 0)
{
elog(LOG, "PGSTATBUFF: recvfrom() failed: %m");
@ -1629,9 +1656,7 @@ pgstat_recvbuffer(void)
* kernel-level check due to having used connect(), but let's
* do it anyway.)
*/
if (fromaddr.sin_addr.s_addr != pgStatAddr.sin_addr.s_addr)
continue;
if (fromaddr.sin_port != pgStatAddr.sin_port)
if (memcmp(&fromaddr, &pgStatAddr, fromlen))
continue;
/*

291
src/backend/postmaster/postmaster.c
View File

@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.332 2003/06/11 06:56:06 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.333 2003/06/12 07:36:51 momjian Exp $
*
* NOTES
*
@ -168,14 +168,9 @@ int ReservedBackends;
static char *progname = (char *) NULL;
/*
* Default Values
*/
static int ServerSock_INET = INVALID_SOCK; /* stream socket server */
#ifdef HAVE_UNIX_SOCKETS
static int ServerSock_UNIX = INVALID_SOCK; /* stream socket server */
#endif
/* The sockets we're listening to. */
#define MAXLISTEN 10
int ListenSocket[MAXLISTEN];
/* Used to reduce macros tests */
#ifdef EXEC_BACKEND
@ -384,10 +379,11 @@ reg_reply(DNSServiceRegistrationReplyErrorType errorCode, void *context)
int
PostmasterMain(int argc, char *argv[])
{
int opt;
int status;
int opt;
int status;
char original_extraoptions[MAXPGPATH];
char *potential_DataDir = NULL;
char *potential_DataDir = NULL;
int i;
*original_extraoptions = '\0';
@ -713,32 +709,53 @@ PostmasterMain(int argc, char *argv[])
/*
* Establish input sockets.
*/
for (i = 0; i < MAXLISTEN; i++)
{
ListenSocket[i] = -1;
}
if (NetServer)
{
#ifdef HAVE_IPV6
/* Try INET6 first. May fail if kernel doesn't support IP6 */
status = StreamServerPort(AF_INET6, VirtualHost,
(unsigned short) PostPortNumber,
UnixSocketDir,
&ServerSock_INET);
if (status != STATUS_OK)
if (VirtualHost && VirtualHost[0])
{
elog(LOG, "IPv6 support disabled --- perhaps the kernel does not support IPv6");
#endif
status = StreamServerPort(AF_INET, VirtualHost,
(unsigned short) PostPortNumber,
UnixSocketDir,
&ServerSock_INET);
char *p, *q;
char c = 0;
q = VirtualHost;
do
{
p = strchr(q, ' ');
if (p)
{
c = *p;
*p = '\0';
}
status = StreamServerPort(AF_UNSPEC, q,
(unsigned short) PostPortNumber,
UnixSocketDir, ListenSocket, MAXLISTEN);
if (status != STATUS_OK)
{
postmaster_error("cannot create tcpip "
"listen socket for: %s", p);
}
if (p)
{
*p = c;
q = p + 1;
}
}
while (p);
}
else
{
status = StreamServerPort(AF_UNSPEC, NULL,
(unsigned short) PostPortNumber,
UnixSocketDir, ListenSocket, MAXLISTEN);
if (status != STATUS_OK)
{
postmaster_error("cannot create INET stream port");
ExitPostmaster(1);
postmaster_error("cannot create tcpip listen "
"socket.");
}
#ifdef HAVE_IPV6
else
elog(LOG, "IPv4 socket created");
}
#endif
#ifdef USE_RENDEZVOUS
if (service_name != NULL)
{
@ -754,10 +771,9 @@ PostmasterMain(int argc, char *argv[])
}
#ifdef HAVE_UNIX_SOCKETS
status = StreamServerPort(AF_UNIX, VirtualHost,
(unsigned short) PostPortNumber,
UnixSocketDir,
&ServerSock_UNIX);
status = StreamServerPort(AF_UNIX, NULL,
(unsigned short) PostPortNumber,
UnixSocketDir, ListenSocket, MAXLISTEN);
if (status != STATUS_OK)
{
postmaster_error("cannot create UNIX stream port");
@ -961,12 +977,11 @@ usage(const char *progname)
static int
ServerLoop(void)
{
fd_set readmask,
writemask;
fd_set readmask, writemask;
int nSockets;
struct timeval now,
later;
struct timezone tz;
struct timeval now, later;
struct timezone tz;
int i;
gettimeofday(&now, &tz);
@ -1065,40 +1080,22 @@ ServerLoop(void)
* New connection pending on our well-known port's socket? If so,
* fork a child process to deal with it.
*/
#ifdef HAVE_UNIX_SOCKETS
if (ServerSock_UNIX != INVALID_SOCK
&& FD_ISSET(ServerSock_UNIX, &rmask))
for (i = 0; i < MAXLISTEN; i++)
{
port = ConnCreate(ServerSock_UNIX);
if (port)
if (ListenSocket[i] != -1 && FD_ISSET(ListenSocket[i], &rmask))
{
BackendStartup(port);
port = ConnCreate(ListenSocket[i]);
if (port)
{
BackendStartup(port);
/*
* We no longer need the open socket or port structure in
* this process
*/
StreamClose(port->sock);
ConnFree(port);
}
}
#endif
if (ServerSock_INET != INVALID_SOCK
&& FD_ISSET(ServerSock_INET, &rmask))
{
port = ConnCreate(ServerSock_INET);
if (port)
{
BackendStartup(port);
/*
* We no longer need the open socket or port structure in
* this process
*/
StreamClose(port->sock);
ConnFree(port);
/*
* We no longer need the open socket
* or port structure in this process
*/
StreamClose(port->sock);
ConnFree(port);
}
}
}
@ -1118,25 +1115,20 @@ static int
initMasks(fd_set *rmask, fd_set *wmask)
{
int nsocks = -1;
int i;
FD_ZERO(rmask);
FD_ZERO(wmask);
#ifdef HAVE_UNIX_SOCKETS
if (ServerSock_UNIX != INVALID_SOCK)
for (i = 0; i < MAXLISTEN; i++)
{
FD_SET(ServerSock_UNIX, rmask);
if (ServerSock_UNIX > nsocks)
nsocks = ServerSock_UNIX;
}
#endif
if (ServerSock_INET != INVALID_SOCK)
{
FD_SET(ServerSock_INET, rmask);
if (ServerSock_INET > nsocks)
nsocks = ServerSock_INET;
int fd = ListenSocket[i];
if (fd != -1)
{
FD_SET(fd, rmask);
if (fd > nsocks)
nsocks = fd;
}
}
return nsocks + 1;
@ -1220,7 +1212,7 @@ ProcessStartupPacket(Port *port, bool SSLdone)
#ifdef USE_SSL
/* No SSL when disabled or on Unix sockets */
if (!EnableSSL || port->laddr.sa.sa_family != AF_INET)
if (!EnableSSL || port->laddr.addr.ss_family != AF_INET)
SSLok = 'N';
else
SSLok = 'S'; /* Support for SSL */
@ -1560,14 +1552,18 @@ ConnFree(Port *conn)
void
ClosePostmasterPorts(bool pgstat_too)
{
int i;
/* Close the listen sockets */
if (NetServer)
StreamClose(ServerSock_INET);
ServerSock_INET = INVALID_SOCK;
#ifdef HAVE_UNIX_SOCKETS
StreamClose(ServerSock_UNIX);
ServerSock_UNIX = INVALID_SOCK;
#endif
for (i = 0; i < MAXLISTEN; i++)
{
if (ListenSocket[i] != -1)
{
StreamClose(ListenSocket[i]);
ListenSocket[i] = -1;
}
}
/* Close pgstat control sockets, unless we're starting pgstat itself */
if (pgstat_too)
pgstat_close_sockets();
@ -2226,19 +2222,20 @@ split_opts(char **argv, int *argcp, char *s)
static int
BackendFork(Port *port)
{
char *remote_host;
char **av;
int maxac;
int ac;
char **av;
int maxac;
int ac;
char debugbuf[32];
char protobuf[32];
#ifdef EXEC_BACKEND
char pbuf[NAMEDATALEN + 256];
#endif
int i;
int status;
struct timeval now;
struct timezone tz;
int i;
int status;
struct timeval now;
struct timezone tz;
char remote_host[NI_MAXHOST];
char remote_port[NI_MAXSERV];
/*
* Let's clean up ourselves as the postmaster child
@ -2286,63 +2283,37 @@ BackendFork(Port *port)
/*
* Get the remote host name and port for logging and status display.
*/
if (isAF_INETx(port->raddr.sa.sa_family))
remote_host[0] = '\0';
remote_port[0] = '\0';
if (!getnameinfo((struct sockaddr *)&port->raddr.addr,
port->raddr.salen,
remote_host, sizeof(remote_host),
remote_port, sizeof(remote_host),
(log_hostname ? 0 : NI_NUMERICHOST) | NI_NUMERICSERV))
{
unsigned short remote_port;
char *host_addr;
#ifdef HAVE_IPV6
char ip_hostinfo[INET6_ADDRSTRLEN];
#else
char ip_hostinfo[INET_ADDRSTRLEN];
#endif
remote_port = ntohs(port->raddr.in.sin_port);
host_addr = SockAddr_ntop(&port->raddr, ip_hostinfo,
sizeof(ip_hostinfo), 1);
remote_host = NULL;
if (log_hostname)
{
struct hostent *host_ent;
host_ent = gethostbyaddr((char *) &port->raddr.in.sin_addr,
sizeof(port->raddr.in.sin_addr),
AF_INET);
if (host_ent)
{
remote_host = palloc(strlen(host_addr) + strlen(host_ent->h_name) + 3);
sprintf(remote_host, "%s[%s]", host_ent->h_name, host_addr);
}
}
if (remote_host == NULL)
remote_host = pstrdup(host_addr);
if (Log_connections)
elog(LOG, "connection received: host=%s port=%hu",
remote_host, remote_port);
if (LogSourcePort)
{
/* modify remote_host for use in ps status */
int slen = strlen(remote_host) + 10;
char *str = palloc(slen);
snprintf(str, slen, "%s:%hu", remote_host, remote_port);
pfree(remote_host);
remote_host = str;
}
getnameinfo((struct sockaddr *)&port->raddr.addr,
port->raddr.salen,
remote_host, sizeof(remote_host),
remote_port, sizeof(remote_host),
NI_NUMERICHOST | NI_NUMERICSERV);
}
else
{
/* not AF_INET */
remote_host = "[local]";
if (Log_connections)
elog(LOG, "connection received: host=%s",
remote_host);
if (Log_connections)
{
elog(LOG, "connection received: host=%s port=%s",
remote_host, remote_port);
}
if (LogSourcePort)
{
/* modify remote_host for use in ps status */
int slen = strlen(remote_host) + 10;
char *str = palloc(slen);
snprintf(str, slen, "%s:%s", remote_host, remote_port);
strncpy(remote_host, str, sizeof(remote_host));
remote_host[sizeof(remote_host) - 1] = '\0';
pfree(str);
}
/*
@ -2516,14 +2487,8 @@ ExitPostmaster(int status)
*
* MUST -- vadim 05-10-1999
*/
if (ServerSock_INET != INVALID_SOCK)
StreamClose(ServerSock_INET);
ServerSock_INET = INVALID_SOCK;
#ifdef HAVE_UNIX_SOCKETS
if (ServerSock_UNIX != INVALID_SOCK)
StreamClose(ServerSock_UNIX);
ServerSock_UNIX = INVALID_SOCK;
#endif
/* Should I use true instead? */
ClosePostmasterPorts(false);
proc_exit(status);
}

25
src/include/getaddrinfo.h
View File

@ -16,7 +16,7 @@
*
* Copyright (c) 2003, PostgreSQL Global Development Group
*
* $Id: getaddrinfo.h,v 1.2 2003/04/02 00:49:28 tgl Exp $
* $Id: getaddrinfo.h,v 1.3 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -40,23 +40,30 @@ struct addrinfo {
struct addrinfo *ai_next;
};
#define EAI_BADFLAGS -1
#define EAI_BADFLAGS -1
#define EAI_NONAME -2
#define EAI_AGAIN -3
#define EAI_FAIL -4
#define EAI_NODATA -5
#define EAI_FAMILY -6
#define EAI_SOCKTYPE -7
#define EAI_SOCKTYPE -7
#define EAI_SERVICE -8
#define EAI_ADDRFAMILY -9
#define EAI_MEMORY -10
#define EAI_SYSTEM -11
#define AI_PASSIVE 0x0001
#define AI_NUMERICHOST 0x0004
#define NI_NUMERICHOST 1
#define NI_NUMERICSERV 2
#endif /* HAVE_STRUCT_ADDRINFO */
#ifndef NI_MAXHOST
#define NI_MAXHOST 1025
#define NI_MAXSERV 32
#endif
#ifndef HAVE_GETADDRINFO
@ -76,10 +83,18 @@ struct addrinfo {
#endif
#define gai_strerror pg_gai_strerror
#ifdef getnameinfo
#undef getnameinfo
#endif
#define getnameinfo pg_getnameinfo
extern int getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
extern void freeaddrinfo(struct addrinfo *res);
extern const char *gai_strerror(int errcode);
extern int getnameinfo(const struct sockaddr *sa, int salen,
char *node, int nodelen,
char *service, int servicelen, int flags);
#endif /* HAVE_GETADDRINFO */

19
src/include/libpq/ip.h
View File

@ -5,7 +5,7 @@
*
* Copyright (c) 2003, PostgreSQL Global Development Group
*
* $Id: ip.h,v 1.7 2003/06/12 07:00:57 momjian Exp $
* $Id: ip.h,v 1.8 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -21,12 +21,17 @@ extern int getaddrinfo2(const char *hostname, const char *servname,
struct addrinfo **result);
extern void freeaddrinfo2(int hint_ai_family, struct addrinfo *ai);
extern char *SockAddr_ntop(const SockAddr *sa, char *dst, size_t cnt,
int v4conv);
extern int SockAddr_pton(SockAddr *sa, const char *src);
extern int rangeSockAddr(const struct sockaddr_storage *addr,
const struct sockaddr_storage *netaddr,
const struct sockaddr_storage *netmask);
extern int isAF_INETx(const int family);
extern int rangeSockAddr(const SockAddr *addr, const SockAddr *netaddr,
const SockAddr *netmask);
extern int SockAddr_cidr_mask(struct sockaddr_storage **mask,
char *numbits, int family);
#ifdef HAVE_UNIX_SOCKETS
#define IS_AF_UNIX(fam) (fam == AF_UNIX)
#else
#define IS_AF_UNIX(fam) (0)
#endif
#endif /* IP_H */

5
src/include/libpq/libpq.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: libpq.h,v 1.57 2003/04/19 00:02:29 tgl Exp $
* $Id: libpq.h,v 1.58 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -46,7 +46,8 @@ typedef struct
* prototypes for functions in pqcomm.c
*/
extern int StreamServerPort(int family, char *hostName,
unsigned short portNumber, char *unixSocketName, int *fdP);
unsigned short portNumber, char *unixSocketName, int ListenSocket[],
int MaxListen);
extern int StreamConnection(int server_fd, Port *port);
extern void StreamClose(int sock);
extern void TouchSocketFile(void);

78
src/include/libpq/pqcomm.h
View File

@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pqcomm.h,v 1.85 2003/05/08 18:33:32 tgl Exp $
* $Id: pqcomm.h,v 1.86 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -32,58 +32,60 @@
#include <netinet/in.h>
#endif /* not WIN32 */
#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
/* Define a struct sockaddr_storage if we don't have one. */
/*
* Desired design of maximum size and alignment
*/
#define _SS_MAXSIZE 128 /* Implementation specific max size */
#define _SS_ALIGNSIZE (sizeof (int64_t))
/* Implementation specific desired alignment */
/*
* Definitions used for sockaddr_storage structure paddings design.
*/
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof (sa_family_t))
#define _SS_PAD2SIZE (_SS_MAXSIZE - (sizeof (sa_family_t) + \
_SS_PAD1SIZE + _SS_ALIGNSIZE))
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16
struct sockaddr_storage {
#ifdef SALEN
uint8_t __ss_len; /* address length */
#endif
sa_family_t ss_family; /* address family */
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 46
#endif
#ifndef HAVE_STRUCT_SOCKADDR_UN
struct sockaddr_un
{
short int sun_family; /* AF_UNIX */
char sun_path[108]; /* path name (gag) */
char __ss_pad1[_SS_PAD1SIZE];
/* 6 byte pad, this is to make implementation
* specific pad up to alignment field that
* follows explicit in the data structure */
int64_t __ss_align;
/* field to force desired structure
* storage alignment */
char __ss_pad2[_SS_PAD2SIZE];
/* 112 byte pad to achieve desired size,
* _SS_MAXSIZE value minus size of ss_family
* __ss_pad1, __ss_align fields is 112 */
};
#endif
/* Define a generic socket address type. */
typedef union SockAddr
{
struct sockaddr sa;
struct sockaddr_in in;
#ifdef HAVE_IPV6
struct sockaddr_in6 in6;
#endif
struct sockaddr_un un;
typedef struct {
struct sockaddr_storage addr;
ACCEPT_TYPE_ARG3 salen;
} SockAddr;
/* Some systems don't have it, so default it to 0 so it doesn't
* have any effect on those systems. */
#ifndef AI_ADDRCONFIG
#define AI_ADDRCONFIG 0
#endif
/* Configure the UNIX socket location for the well known port. */
#define UNIXSOCK_PATH(sun,port,defpath) \
snprintf((sun).sun_path, sizeof((sun).sun_path), "%s/.s.PGSQL.%d", \
#define UNIXSOCK_PATH(path,port,defpath) \
snprintf(path, sizeof(path), "%s/.s.PGSQL.%d", \
((defpath) && *(defpath) != '\0') ? (defpath) : \
DEFAULT_PGSOCKET_DIR, \
(port))
/*
* We do this because sun_len is in BSD's struct, while others don't.
* We never actually set BSD's sun_len, and I can't think of a
* platform-safe way of doing it, but the code still works. bjm
*/
#if defined(SUN_LEN)
#define UNIXSOCK_LEN(sun) \
(SUN_LEN(&(sun)))
#else
#define UNIXSOCK_LEN(sun) \
(strlen((sun).sun_path) + offsetof(struct sockaddr_un, sun_path))
#endif
/*
* These manipulate the frontend/backend protocol version number.
*

6
src/include/pg_config.h.in
View File

@ -411,6 +411,9 @@
/* Define to 1 if the system has the type `struct fcred'. */
#undef HAVE_STRUCT_FCRED
/* Define to 1 if the system has the type `struct sockaddr_storage'. */
#undef HAVE_STRUCT_SOCKADDR_STORAGE
/* Define to 1 if the system has the type `struct sockaddr_un'. */
#undef HAVE_STRUCT_SOCKADDR_UN
@ -487,6 +490,9 @@
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have unix sockets. */
#undef HAVE_UNIX_SOCKETS
/* Define to 1 if you have the `utime' function. */
#undef HAVE_UTIME

9
src/include/pg_config_manual.h
View File

@ -6,7 +6,7 @@
* for developers. If you edit any of these, be sure to do a *full*
* rebuild (and an initdb if noted).
*
* $Id: pg_config_manual.h,v 1.3 2003/05/15 16:35:29 momjian Exp $
* $Id: pg_config_manual.h,v 1.4 2003/06/12 07:36:51 momjian Exp $
*------------------------------------------------------------------------
*/
@ -127,11 +127,10 @@
#define BITS_PER_BYTE 8
/*
* Define this if your operating system supports AF_UNIX family
* sockets.
* Disable UNIX sockets for those operating system.
*/
#if !defined(__QNX__) && !defined(__BEOS__) && !defined(WIN32)
# define HAVE_UNIX_SOCKETS 1
#if defined(__QNX__) || defined(__BEOS__) || defined(WIN32)
# undef HAVE_UNIX_SOCKETS
#endif
/*

4
src/include/port/bsdi.h
View File

@ -9,7 +9,3 @@
typedef unsigned char slock_t;
/* This is marked as obsoleted in BSD/OS 4.3. */
#ifndef EAI_ADDRFAMILY
#define EAI_ADDRFAMILY 1
#endif

73
src/interfaces/libpq/fe-connect.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.243 2003/06/09 17:59:19 tgl Exp $
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.244 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -727,6 +727,7 @@ connectMakeNonblocking(PGconn *conn)
static int
connectNoDelay(PGconn *conn)
{
#ifdef TCP_NODELAY
int on = 1;
if (setsockopt(conn->sock, IPPROTO_TCP, TCP_NODELAY,
@ -738,6 +739,7 @@ connectNoDelay(PGconn *conn)
SOCK_STRERROR(SOCK_ERRNO));
return 0;
}
#endif
return 1;
}
@ -751,15 +753,20 @@ connectNoDelay(PGconn *conn)
static void
connectFailureMessage(PGconn *conn, int errorno)
{
if (conn->raddr.sa.sa_family == AF_UNIX)
char hostname[NI_MAXHOST];
char service[NI_MAXHOST];
getnameinfo((struct sockaddr *)&conn->raddr.addr, conn->raddr.salen,
hostname, sizeof(hostname), service, sizeof(service),
NI_NUMERICHOST | NI_NUMERICSERV);
if (conn->raddr.addr.ss_family == AF_UNIX)
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext(
"could not connect to server: %s\n"
"\tIs the server running locally and accepting\n"
"\tconnections on Unix domain socket \"%s\"?\n"
),
SOCK_STRERROR(errorno),
conn->raddr.un.sun_path);
SOCK_STRERROR(errorno), service);
else
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext(
@ -788,10 +795,10 @@ static int
connectDBStart(PGconn *conn)
{
int portnum;
char portstr[64];
struct addrinfo *addrs = NULL;
struct addrinfo hint;
const char *node = NULL;
char portstr[64];
struct addrinfo *addrs = NULL;
struct addrinfo hint;
const char *node = NULL;
int ret;
if (!conn)
@ -808,6 +815,7 @@ connectDBStart(PGconn *conn)
/* Initialize hint structure */
MemSet(&hint, 0, sizeof(hint));
hint.ai_socktype = SOCK_STREAM;
hint.ai_family = AF_UNSPEC;
/* Set up port number as a string */
if (conn->pgport != NULL && conn->pgport[0] != '\0')
@ -829,17 +837,15 @@ connectDBStart(PGconn *conn)
node = conn->pghost;
hint.ai_family = AF_UNSPEC;
}
#ifdef HAVE_UNIX_SOCKETS
else
{
/* pghostaddr and pghost are NULL, so use Unix domain socket */
#ifdef HAVE_UNIX_SOCKETS
node = "unix";
node = NULL;
hint.ai_family = AF_UNIX;
UNIXSOCK_PATH(conn->raddr.un, portnum, conn->pgunixsocket);
conn->raddr_len = UNIXSOCK_LEN(conn->raddr.un);
StrNCpy(portstr, conn->raddr.un.sun_path, sizeof(portstr));
#endif /* HAVE_UNIX_SOCKETS */
UNIXSOCK_PATH(portstr, portnum, conn->pgunixsocket);
}
#endif /* HAVE_UNIX_SOCKETS */
/* Use getaddrinfo2() to resolve the address */
ret = getaddrinfo2(node, portstr, &hint, &addrs);
@ -1066,12 +1072,11 @@ keep_going: /* We will come back to here until there
/* Remember current address for possible error msg */
memcpy(&conn->raddr, addr_cur->ai_addr,
addr_cur->ai_addrlen);
conn->raddr_len = addr_cur->ai_addrlen;
/* Open a socket */
conn->sock = socket(addr_cur->ai_family,
SOCK_STREAM,
addr_cur->ai_protocol);
addr_cur->ai_socktype,
addr_cur->ai_protocol);
if (conn->sock < 0)
{
/*
@ -1093,13 +1098,23 @@ keep_going: /* We will come back to here until there
* Select socket options: no delay of outgoing data for
* TCP sockets, and nonblock mode. Fail if this fails.
*/
if (isAF_INETx(addr_cur->ai_family))
if (!IS_AF_UNIX(addr_cur->ai_family))
{
if (!connectNoDelay(conn))
break;
{
closesocket(conn->sock);
conn->sock = -1;
conn->addr_cur = addr_cur->ai_next;
continue;
}
}
if (connectMakeNonblocking(conn) == 0)
break;
{
closesocket(conn->sock);
conn->sock = -1;
conn->addr_cur = addr_cur->ai_next;
continue;
}
/*
* Start/make connection. This should not block, since
* we are in nonblock mode. If it does, well, too bad.
@ -1163,9 +1178,8 @@ retry_connect:
case CONNECTION_STARTED:
{
ACCEPT_TYPE_ARG3 laddrlen;
int optval;
ACCEPT_TYPE_ARG3 optlen = sizeof(optval);
ACCEPT_TYPE_ARG3 optlen = sizeof(optval);
/*
* Write ready, since we've made it here, so the
@ -1212,11 +1226,13 @@ retry_connect:
}
/* Fill in the client address */
laddrlen = sizeof(conn->laddr);
if (getsockname(conn->sock, &conn->laddr.sa, &laddrlen) < 0)
conn->laddr.salen = sizeof(conn->laddr.addr);
if (getsockname(conn->sock,
(struct sockaddr *)&conn->laddr.addr,
&conn->laddr.salen) < 0)
{
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext("could not get client address from socket: %s\n"),
libpq_gettext("could not get client address from socket: %s\n"),
SOCK_STRERROR(SOCK_ERRNO));
goto error_return;
}
@ -1240,7 +1256,7 @@ retry_connect:
*/
#ifdef HAVE_UNIX_SOCKETS
if (conn->raddr.sa.sa_family == AF_UNIX)
if (conn->raddr.addr.ss_family == AF_UNIX)
{
/* Don't bother requesting SSL over a Unix socket */
conn->allow_ssl_try = false;
@ -2044,14 +2060,15 @@ PQrequestCancel(PGconn *conn)
* We need to open a temporary connection to the postmaster. Use the
* information saved by connectDB to do this with only kernel calls.
*/
if ((tmpsock = socket(conn->raddr.sa.sa_family, SOCK_STREAM, 0)) < 0)
if ((tmpsock = socket(conn->raddr.addr.ss_family, SOCK_STREAM, 0)) < 0)
{
strcpy(conn->errorMessage.data,
"PQrequestCancel() -- socket() failed: ");
goto cancel_errReturn;
}
retry3:
if (connect(tmpsock, &conn->raddr.sa, conn->raddr_len) < 0)
if (connect(tmpsock, (struct sockaddr *)&conn->raddr.addr,
conn->raddr.salen) < 0)
{
if (SOCK_ERRNO == EINTR)
/* Interrupted system call - we'll just try again */

3
src/interfaces/libpq/libpq-int.h
View File

@ -12,7 +12,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: libpq-int.h,v 1.72 2003/06/09 17:59:19 tgl Exp $
* $Id: libpq-int.h,v 1.73 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -263,7 +263,6 @@ struct pg_conn
int sock; /* Unix FD for socket, -1 if not connected */
SockAddr laddr; /* Local address */
SockAddr raddr; /* Remote address */
int raddr_len; /* Length of remote address */
ProtocolVersion pversion; /* FE/BE protocol version in use */
char sversion[8]; /* The first few bytes of server version */

149
src/port/getaddrinfo.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/port/getaddrinfo.c,v 1.3 2003/04/27 23:56:53 tgl Exp $
* $Header: /cvsroot/pgsql/src/port/getaddrinfo.c,v 1.4 2003/06/12 07:36:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -16,28 +16,50 @@
/* This is intended to be used in both frontend and backend, so use c.h */
#include "c.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#ifdef HAVE_UNIX_SOCKETS
#include <sys/un.h>
#endif
#include "getaddrinfo.h"
/*
* get address info for ipv4 sockets.
*
* Bugs: - only one addrinfo is set even though hintp is NULL or
* ai_socktype is 0
* - AI_CANONNAME is not supported.
* - servname can only be a number, not text.
*/
int
getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints,
const struct addrinfo *hintp,
struct addrinfo **res)
{
struct addrinfo *ai;
struct sockaddr_in sin, *psin;
struct addrinfo *ai;
struct sockaddr_in sin, *psin;
struct addrinfo hints;
if (!hints ||
(hints->ai_family != AF_INET && hints->ai_family != AF_UNSPEC))
if (hintp == NULL)
{
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
}
else
{
memcpy(&hints, hintp, sizeof(hints));
}
if (hints.ai_family != AF_INET && hints.ai_family != AF_UNSPEC)
return EAI_FAMILY;
if (hints->ai_socktype != SOCK_STREAM)
return EAI_SOCKTYPE;
if (hints.ai_socktype == 0)
hints.ai_socktype = SOCK_STREAM;
if (!node && !service)
return EAI_NONAME;
@ -50,9 +72,12 @@ getaddrinfo(const char *node, const char *service,
{
if (node[0] == '\0')
sin.sin_addr.s_addr = htonl(INADDR_ANY);
else if (hints->ai_flags & AI_NUMERICHOST)
else if (hints.ai_flags & AI_NUMERICHOST)
{
inet_aton(node, &sin.sin_addr);
if (!inet_aton(node, &sin.sin_addr))
{
return EAI_FAIL;
}
}
else
{
@ -64,9 +89,8 @@ getaddrinfo(const char *node, const char *service,
switch (h_errno)
{
case HOST_NOT_FOUND:
return EAI_NONAME;
case NO_DATA:
return EAI_NODATA;
return EAI_NONAME;
case TRY_AGAIN:
return EAI_AGAIN;
case NO_RECOVERY:
@ -75,14 +99,14 @@ getaddrinfo(const char *node, const char *service,
}
}
if (hp->h_addrtype != AF_INET)
return EAI_ADDRFAMILY;
return EAI_FAIL;
memcpy(&(sin.sin_addr), hp->h_addr, hp->h_length);
}
}
else
{
if (hints->ai_flags & AI_PASSIVE)
if (hints.ai_flags & AI_PASSIVE)
sin.sin_addr.s_addr = htonl(INADDR_ANY);
else
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
@ -90,10 +114,16 @@ getaddrinfo(const char *node, const char *service,
if (service)
sin.sin_port = htons((unsigned short) atoi(service));
#if SALEN
sin.sin_len = sizeof(sin);
#endif
ai = malloc(sizeof(*ai));
if (!ai)
{
return EAI_MEMORY;
}
psin = malloc(sizeof(*psin));
if (!psin)
{
@ -103,9 +133,10 @@ getaddrinfo(const char *node, const char *service,
memcpy(psin, &sin, sizeof(*psin));
ai->ai_flags = 0;
ai->ai_family = AF_INET;
ai->ai_socktype = SOCK_STREAM;
ai->ai_protocol = IPPROTO_TCP;
ai->ai_socktype = hints.ai_socktype;
ai->ai_protocol = hints.ai_protocol;
ai->ai_addrlen = sizeof(*psin);
ai->ai_addr = (struct sockaddr *) psin;
ai->ai_canonname = NULL;
@ -140,9 +171,6 @@ gai_strerror(int errcode)
case EAI_NONAME:
hcode = HOST_NOT_FOUND;
break;
case EAI_NODATA:
hcode = NO_DATA;
break;
case EAI_AGAIN:
hcode = TRY_AGAIN;
break;
@ -160,8 +188,6 @@ gai_strerror(int errcode)
{
case EAI_NONAME:
return "Unknown host";
case EAI_NODATA:
return "No address associated with name";
case EAI_AGAIN:
return "Host name lookup failure";
case EAI_FAIL:
@ -171,3 +197,82 @@ gai_strerror(int errcode)
#endif /* HAVE_HSTRERROR */
}
/*
* Convert an address to a hostname.
*
* Bugs: - Only supports NI_NUMERICHOST and NI_NUMERICSERV
* It will never resolv a hostname.
* - No IPv6 support.
*/
int
getnameinfo(const struct sockaddr *sa, int salen,
char *node, int nodelen,
char *service, int servicelen, int flags)
{
sa_family_t family;
int ret = -1;
/* Invalid arguments. */
if (sa == NULL || (node == NULL && service == NULL))
{
return EAI_FAIL;
}
/* We don't support those. */
if ((node && !(flags & NI_NUMERICHOST))
|| (service && !(flags & NI_NUMERICSERV)))
{
return EAI_FAIL;
}
family = sa->sa_family;
#ifdef HAVE_IPV6
if (family == AF_INET6)
{
return EAI_FAMILY;
}
#endif
if (service)
{
if (family == AF_INET)
{
ret = snprintf(service, servicelen, "%d",
ntohs(((struct sockaddr_in *)sa)->sin_port));
}
#ifdef HAVE_UNIX_SOCKETS
else if (family == AF_UNIX)
{
ret = snprintf(service, servicelen, "%s",
((struct sockaddr_un *)sa)->sun_path);
}
#endif
if (ret == -1 || ret > servicelen)
{
return EAI_MEMORY;
}
}
if (node)
{
if (family == AF_INET)
{
char *p;
p = inet_ntoa(((struct sockaddr_in *)sa)->sin_addr);
ret = snprintf(node, nodelen, "%s", p);
}
#ifdef HAVE_UNIX_SOCKETS
else if (family == AF_UNIX)
{
ret = snprintf(node, nodelen, "%s", "localhost");
}
#endif
if (ret == -1 || ret > nodelen)
{
return EAI_MEMORY;
}
}
return 0;
}