# 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
# 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>
])])# 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.
_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
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
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], [], [],
*
*
* 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 $
*
*-------------------------------------------------------------------------
*/
* 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",
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);
*
*
* 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 $
*
*-------------------------------------------------------------------------
*/
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);
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)
{
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)
+ 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;
+
+ /* 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;
- token = lfirst(line);
+ }
- if(SockAddr_pton(&mask, token) < 0)
- 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;
+ }
- if(file_ip_addr.sa.sa_family != mask.sa.sa_family)
- goto hba_syntax;
+ /* 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);
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;
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;
}
* 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
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");
}
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
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
{
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
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;
}
closesocket(sock_fd);
}
}
+ freeaddrinfo2(hints.ai_family, la);
+ freeaddrinfo2(hints.ai_family, ident_serv);
return ident_return;
}
{
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:
*
*
* 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
#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
MemSet(&hints, 0, sizeof(hints));
+ if (strlen(path) >= sizeof(unp->sun_path))
+ {
+ return EAI_FAIL;
+ }
+
if (hintsp == NULL)
{
hints.ai_family = AF_UNIX;
if (hints.ai_family != AF_UNIX)
{
/* shouldn't have been called */
- return EAI_ADDRFAMILY;
+ return EAI_FAIL;
}
aip = calloc(1, sizeof(struct addrinfo));
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
}
#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;
+ long bits;
+ char *endptr;
+static struct sockaddr_storage sock;
+ struct sockaddr_in mask4;
+#ifdef HAVE_IPV6
+ struct sockaddr_in6 mask6;
+#endif
+
+ bits = strtol(numbits, &endptr, 10);
+
+ if (*numbits == '\0' || *endptr != '\0')
+ {
+ return -1;
+ }
+ if ((bits < 0) || (family == AF_INET && bits > 32)
#ifdef HAVE_IPV6
- if (strchr(src, ':'))
- family = AF_INET6;
+ || (family == AF_INET6 && bits > 128)
#endif
+ )
+ {
+ return -1;
+ }
- sa->sa.sa_family = family;
+ *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;
}
-}
-
-/*
- * 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;
+ sock.ss_family = family;
+ 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;
#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 */
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
+
* 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 $
*
*-------------------------------------------------------------------------
*/
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;
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 (!IS_AF_UNIX(family) && IS_AF_UNIX(addr->ai_family))
+ {
+ /* Only set up a unix domain socket when
+ * they really asked for it. The service/port
+ * is different in that case. */
+ continue;
+ }
- if (isAF_INETx(family))
- {
- if ((setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one,
- sizeof(one))) == -1)
+ /* 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: setsockopt(SO_REUSEADDR): %s",
+ 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;
- }
+
+
+ if (!IS_AF_UNIX(addr->ai_family))
+ {
+ 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
+
+ /*
+ * 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;
+ }
#ifdef HAVE_UNIX_SOCKETS
- if (family == AF_UNIX)
- {
- if (Setup_AF_UNIX() != STATUS_OK)
+ if (addr->ai_family == AF_UNIX)
{
- freeaddrinfo2(hint.ai_family, addrs);
- return STATUS_ERROR;
+ 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;
+ /*
+ * 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++;
+ }
- err = listen(fd, maxconn);
- if (err < 0)
+ freeaddrinfo(addrs);
+
+ if (!added)
{
- elog(LOG, "server socket failure: listen(): %s",
- strerror(errno));
- freeaddrinfo2(hint.ai_family, addrs);
return STATUS_ERROR;
}
-
- *fdP = fd;
- freeaddrinfo2(hint.ai_family, addrs);
return STATUS_OK;
}
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.
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;
#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)
{
*
* 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"
#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>
#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"
*/
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;
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
/*
* 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;
* 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;
return;
startup_failed:
+ if (addr)
+ {
+ freeaddrinfo2(hints.ai_family, addr);
+ }
+
if (pgStatSock >= 0)
closesocket(pgStatSock);
pgStatSock = -1;
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;
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");
* 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;
/*
*
*
* 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
*
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
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';
/*
* 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)
{
}
#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");
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);
* 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);
-
- /*
- * 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);
+ 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);
+ }
}
}
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;
#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 */
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();
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
/*
* 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
+
+ if (Log_connections)
{
- /* not AF_INET */
- remote_host = "[local]";
+ elog(LOG, "connection received: host=%s port=%s",
+ remote_host, remote_port);
+ }
- if (Log_connections)
- elog(LOG, "connection received: host=%s",
- remote_host);
+ 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);
}
/*
*
* 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);
}
*
* 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 $
*
*-------------------------------------------------------------------------
*/
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
#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 */
*
* 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 $
*
*-------------------------------------------------------------------------
*/
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 */
* 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 $
*
*-------------------------------------------------------------------------
*/
* 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);
* 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 $
*
*-------------------------------------------------------------------------
*/
#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
-#endif
-
-#ifndef INET6_ADDRSTRLEN
-#define INET6_ADDRSTRLEN 46
+struct sockaddr_storage {
+#ifdef SALEN
+ uint8_t __ss_len; /* address length */
#endif
-
-
-#ifndef HAVE_STRUCT_SOCKADDR_UN
-struct sockaddr_un
-{
- short int sun_family; /* AF_UNIX */
- char sun_path[108]; /* path name (gag) */
+ sa_family_t ss_family; /* address family */
+
+ 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.
*
/* 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
/* 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
* 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 $
*------------------------------------------------------------------------
*/
#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
/*
typedef unsigned char slock_t;
-/* This is marked as obsoleted in BSD/OS 4.3. */
-#ifndef EAI_ADDRFAMILY
-#define EAI_ADDRFAMILY 1
-#endif
*
*
* 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 $
*
*-------------------------------------------------------------------------
*/
static int
connectNoDelay(PGconn *conn)
{
+#ifdef TCP_NODELAY
int on = 1;
if (setsockopt(conn->sock, IPPROTO_TCP, TCP_NODELAY,
SOCK_STRERROR(SOCK_ERRNO));
return 0;
}
+#endif
return 1;
}
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(
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)
/* 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')
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);
/* 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)
{
/*
* 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.
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
}
/* 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;
}
*/
#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;
* 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 */
* 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 $
*
*-------------------------------------------------------------------------
*/
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 */
*
*
* 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 $
*
*-------------------------------------------------------------------------
*/
/* 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 (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 ||
- (hints->ai_family != AF_INET && hints->ai_family != AF_UNSPEC))
+ 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;
{
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
{
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:
}
}
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);
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)
{
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;
case EAI_NONAME:
hcode = HOST_NOT_FOUND;
break;
- case EAI_NODATA:
- hcode = NO_DATA;
- break;
case EAI_AGAIN:
hcode = TRY_AGAIN;
break;
{
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:
#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;
+}
projects / postgresql.git / commitdiff