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PostgreSQL Data Base Management System
-Portions copyright (c) 1996-2000, PostgreSQL Global Development Group Portions
-Copyright (c) 1994-6 Regents of the University of California
+Portions Copyright (c) 1996-2000, PostgreSQL Global Development Group
+Portions Copyright (c) 1994-6 Regents of the University of California
Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose, without fee, and without a written agreement is
-hereby granted, provided that the above copyright notice and this paragraph and
-the following two paragraphs appear in all copies.
+documentation for any purpose, without fee, and without a written agreement
+is hereby granted, provided that the above copyright notice and this
+paragraph and the following two paragraphs appear in all copies.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
-DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST
-PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
-THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
-DAMAGE.
+DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
+LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
+EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
-THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
-THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
-SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN
+"AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
+PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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R-Tree ¤ÎÀ߷פθ¶Åµ¤È¤Ê¤ë¸¢°Ò¤¢¤ëÏÀʸ¤Ï:
-Guttman, A. "R-Trees: A Dynamic Index Structure for Spatial Searching." Proc of
-the 1984 ACM SIGMOD Int'l Conf on Mgmt of Data, 45-57.
+Guttman, A. "R-Trees: A Dynamic Index Structure for Spatial Searching." Proc
+of the 1984 ACM SIGMOD Int'l Conf on Mgmt of Data, 45-57.
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WHERE lower(textfield) LIKE lower(pattern)
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4.16.3) ¾¤Î¥æ¡¼¥¶¤È¤Î¶¥¹ç¾õÂÖ¤òÈò¤±¤ë¤¿¤á¤Ë¤Ï¡¢currval() ¤È nextval() ¤Ï»È¤ï¤Ê¤¤¤Û¤¦¤¬¤è¤¤¤Î¤Ç¤·¤ç¤¦¤«¡©
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4.17) OID ¤È¤Ï²¿¤Ç¤¹¤«¡© TID ¤È¤Ï²¿¤Ç¤¹¤«¡©
-
OID ¤È¤Ï°ì°Õ¤Î¹Ô ID ¤ËÂФ¹¤ë PostgreSQL ¤ÎÅú¤¨¤Ç¤¹¡£PostgreSQL ¤ÎÃæ¤Ç¤Ä¤¯¤é¤ì¤ë¤¹¤Ù¤Æ¤Î¹Ô¤Ï°ì°Õ¤Î OID ¤òÆÀ¤Þ¤¹¡£initdb ¤Ç(backend/access/transam.h ¤«¤é)ȯÀ¸¤µ¤ì¤ë OID ¤Ï¤¹¤Ù¤Æ 16384¤è¤ê¾®¤µ¤ÊÃͤǤ¹¡£initdb ¸å¤Î¤¹¤Ù¤Æ¤Î OID (¥æ¡¼¥¶ºîÀ®)¤Ï¤½¤ì°Ê¾å¤ÎÃͤˤʤê¤Þ¤¹¡£´ûÄê¤Ç¤Ï¡¢¤³¤ì¤é¤¹¤Ù¤Æ¤Î OID ¤Ï¥Æ¡¼¥Ö¥ëÆâ¤ä¥Ç¡¼¥¿¥Ù¡¼¥¹Æâ¤Ëα¤Þ¤é¤º¡¢PostgreSQL ¤Î¤½¤Î¥¤¥ó¥¹¥È¥ì¡¼¥·¥ç¥óÁ´ÂÎÆâ¤Ç°ì°Õ¤Ç¤¢¤ê¤Þ¤¹¡£
+
OID ¤È¤Ï°ì°Õ¤Î¹Ô ID ¤ËÂФ¹¤ë PostgreSQL ¤ÎÅú¤¨¤Ç¤¹¡£PostgreSQL ¤ÎÃæ¤Ç¤Ä¤¯¤é¤ì¤ë¤¹¤Ù¤Æ¤Î¹Ô¤Ï°ì°Õ¤Î OID ¤òÆÀ¤Þ¤¹¡£initdb ¤ÇȯÀ¸¤µ¤ì¤ë OID ¤Ï¤¹¤Ù¤Æ 16384 (backend/access/transam.h ¤«¤é)¤è¤ê¾®¤µ¤ÊÃͤǤ¹¡£initdb ¸å¤Î¤¹¤Ù¤Æ¤Î OID (¥æ¡¼¥¶ºîÀ®)¤Ï¤½¤ì°Ê¾å¤ÎÃͤˤʤê¤Þ¤¹¡£
+´ûÄê¤Ç¤Ï¡¢¤³¤ì¤é¤¹¤Ù¤Æ¤Î OID¤Ï°ì¤Ä¤Î¥Ç¡¼¥Ö¥ë¤ä¥Ç¡¼¥¿¥Ù¡¼¥¹Æâ¤Ëα¤Þ¤é¤º¡¢PostgreSQL ¥¤¥ó¥¹¥È¥ì¡¼¥·¥ç¥óÁ´ÂΤÎÃæ¤Ç°ì°Õ¤Ç¤¹¡£
PostgreSQL ¤Ï¥Æ¡¼¥Ö¥ë´Ö¤Î¹Ô¤ò·ë¤Ó¤Ä¤±¤ë¤¿¤á¤Ë¡¢¤½¤Î¥·¥¹¥Æ¥à¥Æ¡¼¥Ö¥ëÆâ¤Ë OID ¤ò»È¤¤¤Þ¤¹¡£¤³¤Î OID ¤ÏÆÃÄê¤Î¥æ¡¼¥¶¤Î¹Ô¤ò¼±Ê̤¹¤ë¤¿¤á¤ä·ë¹ç¤ÎÃæ¤Ç»È¤ï¤ì¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£OID ¤ÎÃͤòÊݸ¤¹¤ë¤¿¤á¤Ë¤Ï OID ·¿¤òÎó¤Ë»È¤¦¤³¤È¤ò¾©¤á¤Þ¤¹¡£¤è¤ê®¤¯¥¢¥¯¥»¥¹¤¹¤ë¤¿¤á¤Ë OID ¥Õ¥£¡¼¥ë¥É¤Ë¥¤¥ó¥Ç¥Ã¥¯¥¹¤òºî¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£
-
OID ¤Ï¡¢Á´¤Æ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤«¤é»È¤ï¤ì¤ëÃæ±ûÎΰ褫¤é¡¢Á´¤Æ¤Î¿·¤·¤¤¹Ô¤Ë³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹¡£OID ¤ò¾¤Î²¿¤«¤ËÊѤ¨¤¿¤¤¡¢¤â¤·¤¯¤Ï¸µ¤Î OID ¤Ç¥Æ¡¼¥Ö¥ë¤ò¥³¥Ô¡¼¤·¤¿¤¤¤Î¤Ê¤é¡¢¤½¤¦¤Ç¤¤Ê¤¤Íýͳ¤Ï¤¢¤ê¤Þ¤»¤ó¡£
+ OID ¤Ï¡¢Á´¤Æ¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ç»È¤ï¤ì¤ëÃæ±ûÎΰ褫¤é¡¢Á´¤Æ¤Î¿·¤·¤¤¹Ô¤Ë³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹¡£OID ¤ò¾¤Î²¿¤«¤ËÊѤ¨¤¿¤¤¡¢¤¢¤ë¤¤¤Ï¸µ¤Î OID ¤â¥Æ¡¼¥Ö¥ë¤È°ì½ï¤Ë¥³¥Ô¡¼¤·¤¿¤¤¤Î¤Ê¤é¡¢¤Ç¤¤Ê¤¯¤Ï¤¢¤ê¤Þ¤»¤ó¡£
+
- CREATE TABLE new_table(old_oid oid, mycol int);
+ CREATE TABLE new (old_oid oid, mycol int);
SELECT old_oid, mycol INTO new FROM old;
COPY new TO '/tmp/pgtable';
DELETE FROM new;
4.19) ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸ "ERROR: Memory exhausted in AllocSetAlloc()"¤¬½Ð¤ë¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©
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-postmaster ¤ò³«»Ï¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ²¼¤µ¤¤¡§
+¤â¤·¡¢7.1 ¤è¤ê¤â¸Å¤¤¥Ð¡¼¥¸¥ç¥ó¤ò¤ª»È¤¤¤Î¾ì¹ç¤Ï¡¢¥¢¥Ã¥×¥Ç¡¼¥È¤Ë¤è¤Ã¤Æ¤³¤ÎÌäÂê¤ò
+²ò·è¤Ç¤¤ë¤Ç¤·¤ç¤¦¡£¤½¤ì¤È¡¢¥·¥¹¥Æ¥à¤Î²¾ÁÛ¥á¥â¥ê¡¼¤òÁ´¤Æ»È¤¤²Ì¤¿¤·¤Æ¤·¤Þ¤Ã¤Æ¤¤¤ë²ÄǽÀ¤¬¤¢¤ë¤«¡¢¥«¡¼¥Í¥ë¤¬¤¢¤ë¥ê¥½¡¼¥¹¤Ë¤Ä¤¤¤Æ¤â¤ÄÀ©¸ÂÃͤ¬Ä㤹¤®¤ë²ÄǽÀ¤¬¤¢¤ê¤Þ¤¹¡£
+postmaster ¤ò»ÏÆ°¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ²¼¤µ¤¤¡§
ulimit -d 262144
5.1) ¼«Ê¬¤Ç½ñ¤¤¤¿¥æ¡¼¥¶ÄêµÁ´Ø¿ô¤ò psql ¤ÎÃæ¤Ç¼Â¹Ô¤¹¤ë¤È¥³¥¢¡¦¥À¥ó¥×¤·¤Æ¤·¤Þ¤¦¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©
-
ÌäÂê¤Ï¿§¡¹¤È¹Í¤¨¤é¤ì¤Þ¤¹¡£¤Þ¤ººÇ½é¤Ë¡¢ºîÀ®¤·¤¿¥æ¡¼¥¶ÄêµÁ´Ø¿ô¤òñÆȤΥƥ¹¥È¥×¥í¥°¥é¥à¤Ë¤·¤Æ»î¤·¤Æ¤ß¤Æ²¼¤µ¤¤¡£
+
ÌäÂê¤Ï¿§¡¹¤È¹Í¤¨¤é¤ì¤Þ¤¹¤¬¡¢¤Þ¤ººÇ½é¤Ë¡¢ºîÀ®¤·¤¿¥æ¡¼¥¶ÄêµÁ´Ø¿ô¤òñÆȤΥƥ¹¥È¥×¥í¥°¥é¥à¤Ë¤·¤Æ»î¤·¤Æ¤ß¤Æ²¼¤µ¤¤¡£
-
5.2) PostgreSQL ÍѤ˽ñ¤¤¤¿¿è¤Ê¿·¤·¤¤·¿¤ä´Ø¿ô¤Ï¡¢¤É¤¦¤¹¤ì¤Ð´ó£¤Ç¤¤Þ¤¹¤«¡©
+
5.2) PostgreSQL ÍѤ˽ñ¤¤¤¿¤Á¤ç¤Ã¤ÈÁÇŨ¤Ê¿·¤·¤¤·¿¤ä´Ø¿ô¤òÄ󶡤·¤Æ¥×¥í¥¸¥§¥¯¥È¤Ë¹×¸¥¤·¤¿¤¤¤Î¤Ç¤¹¤¬¡©
³§¤µ¤ó¤Î¹Ô¤Ê¤Ã¤¿³ÈÄ¥¤ò¡¢pgsql-hackers ¥á¡¼¥ê¥ó¥°¡¦¥ê¥¹¥È¤ËÁ÷¤Ã¤Æ¤¯¤À¤µ¤¤¡£¤½¤·¤Æ¡¢¤æ¤¯¤æ¤¯¤Ï¤½¤¦¤·¤¿³ÈÄ¥¤¬ contrib/ ¥µ¥Ö¥Ç¥£¥ì¥¯¥È¥ê¤ÎÃæ¤ËÆþ¤ë¤³¤È¤Ë¤Ê¤ë¤Ç¤·¤ç¤¦¡£
[ÌõÃí¡§
+ ÆüËܸìÈǤÎÀ½ºî¤Ë¤Ä¤¤¤Æ¤Ï°Ê²¼¤ÎÄ̤ê¤Ç¤¹¡£
+
+ ºÇ½ª¹¹¿·Æü: 2001ǯ07·î05Æü
+
+ ¤³¤ÎFAQ¤ÎÏÂÌõ¤ÎºîÀ®¤Ë¤¢¤¿¤ê¶¨ÎϤò¤·¤Æ¤¯¤À¤µ¤Ã¤¿Êý¡¹(·É¾Î¤Ïά¤µ¤»¤Æ¤¤¤¿¤À¤¤Þ¤¹):
+
+
+ ¤ò¤Ï¤¸¤á¡¢¥Ý¥¹¥È¥°¥ì¥¹¤Ë´Ø¤¹¤ëÏÃÂêËÉÙ¤Ê
ÆüËܸì¥Ý¥¹¥È¥°¥ì¥¹¡¦¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¡¢+ ÏÂÌõ¤Î¤¤Ã¤«¤±¤òºî¤Ã¤Æ¤¯¤ì¤¿
JF(Linux Japanese FAQ Mailing List)¥×¥í¥¸¥§¥¯¥È¡¢¤½¤Î¾¡¢+ ľÀܤ¢¤ë¤¤¤Ï´ÖÀÜŪ¤Ë¤«¤«¤ï¤Ã¤Æ¤¤¤ë¤¹¤Ù¤Æ¤Î¥ª¡¼¥×¥ó¥½¡¼¥¹¥³¥ß¥å¥Ë¥Æ¥£¡¼¤Î
+ ³§¤µ¤ó¤Ë´¶¼Õ¤·¤Þ¤¹¡£
+
+
+ ÆüËܸìÈǤΤ³¤Îʸ½ñ¤Ï¡¢°Ê²¼¤«¤é¤â¤¿¤É¤ì¤Þ¤¹¡£
+
http://www.rccm.co.jp/~juk/pgsql/(FAQÏÂÌõ PostgreSQL ¤Ë¤Ä¤¤¤Æ¤è¤¯¤¢¤ë¼ÁÌä)+
http://www.linux.or.jp/JF/(PostgreSQL-FAQ.j)+
http://www.sra.co.jp/people/t-ishii/PostgreSQL/doc-jp/+
]
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.62 2001/08/17 15:44:17 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/libpq/auth.c,v 1.63 2001/08/21 00:33:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
-#include /* needed by in.h on Ultrix */
+#include
+#include /* for SCM_CREDS */
+#ifdef SCM_CREDS
+#include /* for struct iovec */
+#include
+#include
+#endif
#include
-
#include "libpq/auth.h"
#include "libpq/crypt.h"
#include "libpq/hba.h"
#include "miscadmin.h"
static void sendAuthRequest(Port *port, AuthRequest areq);
-
static int checkPassword(Port *port, char *user, char *password);
static int old_be_recvauth(Port *port);
static int map_old_to_new(Port *port, UserAuth old, int status);
static void auth_failed(Port *port);
-
static int recv_and_check_password_packet(Port *port);
static int recv_and_check_passwordv0(Port *port);
break;
case uaIdent:
+#if !defined(SO_PEERCRED) && defined(SCM_CREDS)
+ /*
+ * If we are doing ident on unix-domain sockets,
+ * use SCM_CREDS only if it is defined and SO_PEERCRED isn't.
+ */
+#ifdef fc_uid
+ /* Receive credentials on next message receipt, BSD/OS */
+ {
+ int on = 1;
+ if (setsockopt(port->sock, 0, LOCAL_CREDS, &on, sizeof(on)) < 0)
+ {
+ elog(FATAL,
+ "pg_local_sendauth: can't do setsockopt: %s\n", strerror(errno));
+ return;
+ }
+ }
+#endif
+ if (port->raddr.sa.sa_family == AF_UNIX)
+ sendAuthRequest(port, AUTH_REQ_SCM_CREDS);
+#endif
status = authident(port);
break;
return status;
}
+
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.64 2001/08/16 16:24:15 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.65 2001/08/21 00:33:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include
-#include
#include
-#include
+#include
+#include /* for SCM_CREDS */
+#ifdef SCM_CREDS
+#include /* for struct iovec */
+#include
+#endif
#include
#include
{
/* We didn't get a valid credentials struct. */
snprintf(PQerrormsg, PQERRORMSG_LENGTH,
- "Could not get valid credentials from the UNIX socket: %s\n",
+ "ident_unix: error receiving credentials: %s\n",
strerror(errno));
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
return false;
}
- /* Convert UID to user login name */
pass = getpwuid(peercred.uid);
if (pass == NULL)
{
- /* Error - no username with the given uid */
snprintf(PQerrormsg, PQERRORMSG_LENGTH,
- "There is no entry in /etc/passwd with the socket's uid\n");
+ "ident_unix: unknown local user with uid %d\n",
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
return false;
}
- StrNCpy(ident_user, pass->pw_name, IDENT_USERNAME_MAX);
+ StrNCpy(ident_user, pass->pw_name, IDENT_USERNAME_MAX+1);
return true;
-#else /* not SO_PEERCRED */
+#elif defined(SCM_CREDS)
+ struct msghdr msg;
+
+/* Credentials structure */
+#ifndef fc_uid
+ typedef struct cmsgcred Cred;
+#define cruid cmcred_uid
+#else
+ typedef struct fcred Cred;
+#define cruid fc_uid
+#endif
+ Cred *cred;
+
+ /* Compute size without padding */
+ char cmsgmem[sizeof(struct cmsghdr) + sizeof(Cred)];
+ /* Point to start of first structure */
+ struct cmsghdr *cmsg = (struct cmsghdr *)cmsgmem;
+
+ struct iovec iov;
+ char buf;
+ struct passwd *pw;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+ msg.msg_control = (char *)cmsg;
+ msg.msg_controllen = sizeof(cmsgmem);
+ memset(cmsg, 0, sizeof(cmsgmem));
+
+ /*
+ * The one character which is received here is not meaningful;
+ * its purposes is only to make sure that recvmsg() blocks
+ * long enough for the other side to send its credentials.
+ */
+ iov.iov_base = &buf;
+ iov.iov_len = 1;
+
+ if (recvmsg(sock, &msg, 0) < 0 ||
+ cmsg->cmsg_len < sizeof(cmsgmem) ||
+ cmsg->cmsg_type != SCM_CREDS)
+ {
+ snprintf(PQerrormsg, PQERRORMSG_LENGTH,
+ "ident_unix: error receiving credentials: %s\n",
+ strerror(errno));
+ fputs(PQerrormsg, stderr);
+ pqdebug("%s", PQerrormsg);
+ return false;
+ }
+
+ cred = (Cred *)CMSG_DATA(cmsg);
+ pw = getpwuid(cred->fc_uid);
+ if (pw == NULL)
+ {
+ snprintf(PQerrormsg, PQERRORMSG_LENGTH,
+ "ident_unix: unknown local user with uid %d\n",
+ cred->fc_uid);
+ fputs(PQerrormsg, stderr);
+ pqdebug("%s", PQerrormsg);
+ return false;
+ }
+
+ StrNCpy(ident_user, pw->pw_name, IDENT_USERNAME_MAX+1);
+
+ return true;
+
+#else
snprintf(PQerrormsg, PQERRORMSG_LENGTH,
- "IDENT auth is not supported on local connections on this platform\n");
+ "'ident' auth is not supported on local connections on this platform\n");
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
+
return false;
-#endif /* SO_PEERCRED */
+#endif
}
/*
# ident: For TCP/IP connections, authentication is done by contacting
# the ident server on the client host. (CAUTION: this is only
# as secure as the client machine!) On machines that support
-# SO_PEERCRED socket requests, this method also works for
-# local Unix-domain connections. AUTH_ARGUMENT is required:
-# it determines how to map remote user names to Postgres user
-# names. The AUTH_ARGUMENT is a map name found in the
-# $PGDATA/pg_ident.conf file. The connection is accepted if
-# that file contains an entry for this map name with the
+# SO_PEERCRED or SCM_CREDS socket requests, this method also
+# works for local Unix-domain connections. AUTH_ARGUMENT is
+# required: it determines how to map remote user names to
+# Postgres user names. The AUTH_ARGUMENT is a map name found
+# in the $PGDATA/pg_ident.conf file. The connection is accepted
+# if that file contains an entry for this map name with the
# ident-supplied username and the requested Postgres username.
# The special map name "sameuser" indicates an implied map
# (not in pg_ident.conf) that maps each ident username to the
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pqcomm.h,v 1.57 2001/08/16 04:27:18 momjian Exp $
+ * $Id: pqcomm.h,v 1.58 2001/08/21 00:33:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#define AUTH_REQ_PASSWORD 3 /* Password */
#define AUTH_REQ_CRYPT 4 /* crypt password */
#define AUTH_REQ_MD5 5 /* md5 password */
+#define AUTH_REQ_SCM_CREDS 6 /* transfer SCM credentials */
typedef uint32 AuthRequest;
* exceed INITIAL_EXPBUFFER_SIZE (currently 256 bytes).
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-auth.c,v 1.55 2001/08/17 15:40:07 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-auth.c,v 1.56 2001/08/21 00:33:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres_fe.h"
+/* XXX is there a reason these appear before the system defines? */
#include "libpq-fe.h"
#include "libpq-int.h"
#include "fe-auth.h"
#else
#include
#include
+#include
+#include
+#include /* for SCM_CREDS */
+#ifdef SCM_CREDS
+#include /* for struct iovec */
+#include
+#endif
#include /* for MAXHOSTNAMELEN on most */
#ifndef MAXHOSTNAMELEN
#include /* for MAXHOSTNAMELEN on some */
#endif /* KRB5 */
+#ifdef SCM_CREDS
+static int
+pg_local_sendauth(char *PQerrormsg, PGconn *conn)
+{
+ char buf;
+ struct iovec iov;
+ struct msghdr msg;
+#ifndef fc_uid
+ /* Prevent padding */
+ char cmsgmem[sizeof(struct cmsghdr) + sizeof(struct cmsgcred)];
+ /* Point to start of first structure */
+ struct cmsghdr *cmsg = (struct cmsghdr *)cmsgmem;
+#endif
+
+ /*
+ * The backend doesn't care what we send here, but it wants
+ * exactly one character to force recvmsg() to block and wait
+ * for us.
+ */
+ buf = '\0';
+ iov.iov_base = &buf;
+ iov.iov_len = 1;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+#ifndef fc_uid
+ /* Create control header, FreeBSD */
+ msg.msg_control = cmsg;
+ msg.msg_controllen = sizeof(cmsgmem);
+ memset(cmsg, 0, sizeof(cmsgmem));
+ cmsg.hdr.cmsg_len = sizeof(cmsgmem);
+ cmsg.hdr.cmsg_level = SOL_SOCKET;
+ cmsg.hdr.cmsg_type = SCM_CREDS;
+#endif
+
+ if (sendmsg(conn->sock, &msg, 0) == -1)
+ {
+ snprintf(PQerrormsg, PQERRORMSG_LENGTH,
+ "pg_local_sendauth: sendmsg: %s\n", strerror(errno));
+ return STATUS_ERROR;
+ }
+ return STATUS_OK;
+}
+#endif
+
static int
pg_password_sendauth(PGconn *conn, const char *password, AuthRequest areq)
{
crypt_pwd = crypt(password, salt);
break;
}
- default:
+ case AUTH_REQ_PASSWORD:
/* discard const so we can assign it */
crypt_pwd = (char *)password;
break;
+ default:
+ return STATUS_ERROR;
}
-
ret = pqPacketSend(conn, crypt_pwd, strlen(crypt_pwd) + 1);
if (areq == AUTH_REQ_MD5)
free(crypt_pwd);
return STATUS_ERROR;
}
break;
+
+ case AUTH_REQ_SCM_CREDS:
+#ifdef SCM_CREDS
+ if (pg_local_sendauth(PQerrormsg, conn) != STATUS_OK)
+ return STATUS_ERROR;
+#else
+ snprintf(PQerrormsg, PQERRORMSG_LENGTH,
+ libpq_gettext("SCM_CRED authentication method not supported\n"));
+ return STATUS_ERROR;
+#endif
+ break;
+
default:
snprintf(PQerrormsg, PQERRORMSG_LENGTH,
libpq_gettext("authentication method %u not supported\n"), areq);
self->errornumber = CONN_AUTH_TYPE_UNSUPPORTED;
return 0;
+ case AUTH_REQ_SCM_CREDS:
+ self->errormsg = "Unix socket credential authentication not supported";
+ self->errornumber = CONN_AUTH_TYPE_UNSUPPORTED;
+ return 0;
+
default:
self->errormsg = "Unknown authentication type";
self->errornumber = CONN_AUTH_TYPE_UNSUPPORTED;
#define AUTH_REQ_PASSWORD 3
#define AUTH_REQ_CRYPT 4
#define AUTH_REQ_MD5 5
+#define AUTH_REQ_SCM_CREDS 6
/* Startup Packet sizes */
#define SM_DATABASE 64
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