]> granicus.if.org Git - postgresql/commitdiff
Add Unix domain socket support, from Goran Thyni, goran@bildbasen.se
authorBruce Momjian <bruce@momjian.us>
Fri, 7 Nov 1997 20:52:15 +0000 (20:52 +0000)
committerBruce Momjian <bruce@momjian.us>
Fri, 7 Nov 1997 20:52:15 +0000 (20:52 +0000)
src/backend/libpq/hba.c
src/backend/libpq/password.c
src/backend/libpq/pqcomm.c
src/backend/libpq/pqpacket.c
src/backend/postmaster/postmaster.c
src/backend/tcop/postgres.c
src/backend/utils/init/postinit.c
src/include/libpq/pqcomm.h
src/interfaces/libpq/fe-connect.c

index d0734d3ea5cb3f22d8076c82298c08a40041211f..e78569ae2ac0cf140db830364c0cbf889ef7cee0 100644 (file)
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.22 1997/09/08 21:43:45 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/libpq/hba.c,v 1.23 1997/11/07 20:51:27 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -855,8 +855,8 @@ authident(const char DataDir[],
 
        /* The username returned by ident */
 
-       ident(port.raddr.sin_addr, port.laddr.sin_addr,
-                 port.raddr.sin_port, port.laddr.sin_port,
+       ident(port.raddr.in.sin_addr, port.laddr.in.sin_addr,
+                 port.raddr.in.sin_port, port.laddr.in.sin_port,
                  &ident_failed, ident_username);
 
        if (ident_failed)
@@ -906,10 +906,13 @@ hba_recvauth(const Port *port, const char database[], const char user[],
         */
        int                     retvalue;
 
+       /* UNIX socket always OK, for now */
+       if(port->raddr.in.sin_family == AF_UNIX)
+         return STATUS_OK;
        /* Our eventual return value */
+       
 
-
-       find_hba_entry(DataDir, port->raddr.sin_addr, database,
+       find_hba_entry(DataDir, port->raddr.in.sin_addr, database,
                                   &host_ok, &userauth, usermap_name,
                                   false                /* don't find password entries of type
                                           'password' */ );
index aaa204b4db9ac79d0c6f3cfeeccad579dc78124c..de803905cb357205a8ffb3619bbcf175ead2b06b 100644 (file)
@@ -26,7 +26,7 @@ verify_password(char *user, char *password, Port *port,
                           *test_pw;
        char            salt[3];
 
-       find_hba_entry(DataDir, port->raddr.sin_addr, database,
+       find_hba_entry(DataDir, port->raddr.in.sin_addr, database,
                                   &host_ok, &userauth, pw_file_name, true);
 
        if (!host_ok)
index 40a9f32c232ccbc6ab49546277cc827948529370..a75631e5f056aed8038624b31004e658939088df 100644 (file)
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.23 1997/09/18 20:20:39 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.24 1997/11/07 20:51:34 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -571,20 +571,27 @@ pq_async_notify()
  *
  * RETURNS: STATUS_OK or STATUS_ERROR
  */
+
+static char sock_path[100] = "";
+
+static void do_unlink()
+{
+  if (sock_path[0]) unlink(sock_path);
+}
+
 int
 StreamServerPort(char *hostName, short portName, int *fdP)
 {
        struct sockaddr_in sin;
-       int                     fd;
+       struct sockaddr_un sun;
+       int                     fd, err, family;
        int                     one = 1;
 
-
-       if (!hostName)
-               hostName = "localhost";
+       family = hostName != NULL ? AF_INET : AF_UNIX;
 
        MemSet((char *) &sin, 0, sizeof sin);
 
-       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+       if ((fd = socket(family, SOCK_STREAM, 0)) < 0)
        {
                sprintf(PQerrormsg,
                                "FATAL: StreamServerPort: socket() failed: errno=%d\n",
@@ -593,7 +600,7 @@ StreamServerPort(char *hostName, short portName, int *fdP)
                pqdebug("%s", PQerrormsg);
                return (STATUS_ERROR);
        }
-
+       if (family == AF_UNIX) on_exitpg(do_unlink, (caddr_t) 0);
        if ((setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one,
                                        sizeof(one))) == -1)
        {
@@ -604,11 +611,24 @@ StreamServerPort(char *hostName, short portName, int *fdP)
                pqdebug("%s", PQerrormsg);
                return (STATUS_ERROR);
        }
-
-       sin.sin_family = AF_INET;
-       sin.sin_port = htons(portName);
-
-       if (bind(fd, (struct sockaddr *) & sin, sizeof sin) < 0)
+       if (family == AF_UNIX)
+         {
+           size_t len;
+           bzero(&sun, sizeof(sun));
+           sun.sun_family = family;
+           len = UNIXSOCK_PATH(sun,portName);
+           strcpy(sock_path, sun.sun_path);
+           err = bind(fd, (struct sockaddr *) &sun, len);
+         }
+       else
+         {
+           bzero(&sin, sizeof(sin));
+           sin.sin_family = family;
+           sin.sin_addr.s_addr = htonl(INADDR_ANY);
+           sin.sin_port = htons(portName);
+           err = bind(fd, (struct sockaddr *) &sin, sizeof sin);
+         }
+       if (err < 0)
        {
                sprintf(PQerrormsg,
                                "FATAL: StreamServerPort: bind() failed: errno=%d\n",
@@ -645,26 +665,30 @@ StreamServerPort(char *hostName, short portName, int *fdP)
 int
 StreamConnection(int server_fd, Port *port)
 {
-       int                     addrlen;
+       int len, addrlen;
+       int family = port->raddr.in.sin_family;
 
        /* accept connection (and fill in the client (remote) address) */
-       addrlen = sizeof(struct sockaddr_in);
+       len = family == AF_INET ?
+         sizeof(struct sockaddr_in) : sizeof(struct sockaddr_un);
+       addrlen = len;
        if ((port->sock = accept(server_fd,
-                                                        (struct sockaddr *) & port->raddr,
-                                                        &addrlen)) < 0)
+                                (struct sockaddr *) & port->raddr,
+                                &addrlen)) < 0)
        {
                elog(WARN, "postmaster: StreamConnection: accept: %m");
                return (STATUS_ERROR);
        }
-
+       
        /* fill in the server (local) address */
-       addrlen = sizeof(struct sockaddr_in);
+       addrlen = len;
        if (getsockname(port->sock, (struct sockaddr *) & port->laddr,
                                        &addrlen) < 0)
        {
                elog(WARN, "postmaster: StreamConnection: getsockname: %m");
                return (STATUS_ERROR);
        }
+       if (family == AF_INET)
        {
                struct protoent *pe;
                int                     on = 1;
@@ -714,45 +738,50 @@ StreamClose(int sock)
 int
 StreamOpen(char *hostName, short portName, Port *port)
 {
+        int len, err;
        struct hostent *hp;
-       int                     laddrlen = sizeof(struct sockaddr_in);
        extern int      errno;
-
-       if (!hostName)
-               hostName = "localhost";
-
+       
        /* set up the server (remote) address */
-       if (!(hp = gethostbyname(hostName)) || hp->h_addrtype != AF_INET)
-       {
+       MemSet((char *) &port->raddr, 0, sizeof(port->raddr));
+       if (hostName)
+         {
+           if (!(hp = gethostbyname(hostName)) || hp->h_addrtype != AF_INET)
+             {
                sprintf(PQerrormsg,
-                               "FATAL: StreamOpen: unknown hostname: %s\n",
-                               hostName);
+                       "FATAL: StreamOpen: unknown hostname: %s\n",
+                       hostName);
                fputs(PQerrormsg, stderr);
                pqdebug("%s", PQerrormsg);
                return (STATUS_ERROR);
-       }
-       MemSet((char *) &port->raddr, 0, sizeof(port->raddr));
-       memmove((char *) &(port->raddr.sin_addr),
-                       (char *) hp->h_addr,
-                       hp->h_length);
-       port->raddr.sin_family = AF_INET;
-       port->raddr.sin_port = htons(portName);
-
+             }
+           memmove((char *) &(port->raddr.in.sin_addr),
+                   (char *) hp->h_addr,
+                   hp->h_length);
+           port->raddr.in.sin_family = AF_INET;
+           port->raddr.in.sin_port = htons(portName);
+           len = sizeof(struct sockaddr_in);
+         }
+       else
+         {
+           port->raddr.un.sun_family = AF_UNIX;
+           len  = UNIXSOCK_PATH(port->raddr.un,portName);
+         }
        /* connect to the server */
-       if ((port->sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+       if ((port->sock=socket(port->raddr.in.sin_family, SOCK_STREAM, 0)) < 0)
        {
                sprintf(PQerrormsg,
-                               "FATAL: StreamOpen: socket() failed: errno=%d\n",
+                       "FATAL: StreamOpen: socket() failed: errno=%d\n",
                                errno);
                fputs(PQerrormsg, stderr);
                pqdebug("%s", PQerrormsg);
                return (STATUS_ERROR);
        }
-       if (connect(port->sock, (struct sockaddr *) & port->raddr,
-                               sizeof(port->raddr)) < 0)
+       err = connect(port->sock, (struct sockaddr*) &port->raddr, len);
+       if (err < 0)
        {
                sprintf(PQerrormsg,
-                               "FATAL: StreamOpen: connect() failed: errno=%d\n",
+                       "FATAL: StreamOpen: connect() failed: errno=%d\n",
                                errno);
                fputs(PQerrormsg, stderr);
                pqdebug("%s", PQerrormsg);
@@ -761,7 +790,7 @@ StreamOpen(char *hostName, short portName, Port *port)
 
        /* fill in the client address */
        if (getsockname(port->sock, (struct sockaddr *) & port->laddr,
-                                       &laddrlen) < 0)
+                       &len) < 0)
        {
                sprintf(PQerrormsg,
                                "FATAL: StreamOpen: getsockname() failed: errno=%d\n",
index 1e95794c8516b7b4b9a6d4badfc1517b4a52e995..d699f00d0f1170377cdb255ff412e2936f83978f 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/libpq/Attic/pqpacket.c,v 1.8 1997/09/08 21:43:52 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/libpq/Attic/pqpacket.c,v 1.9 1997/11/07 20:51:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -85,7 +85,7 @@ PacketReceive(Port *port,             /* receive port */
 
        /*
         * Assume port->nBytes is zero unless we were interrupted during
-        * non-blocking I/O.  This first recvfrom() is to get the hdr
+        * non-blocking I/O.  This first recv() is to get the hdr
         * information so we know how many bytes to read.  Life would be very
         * complicated if we read too much data (buffering).
         */
@@ -98,8 +98,7 @@ PacketReceive(Port *port,             /* receive port */
        else
        {
                /* peeking into the incoming message */
-               cc = recvfrom(port->sock, (char *) &(buf->len), hdrLen, flag,
-                                         (struct sockaddr *) & (port->raddr), &addrLen);
+               cc = recv(port->sock, (char *) &(buf->len), hdrLen, flag);
                if (cc < hdrLen)
                {
                        /* if cc is negative, the system call failed */
@@ -179,8 +178,7 @@ PacketReceive(Port *port,           /* receive port */
         */
        while (packetLen)
        {
-               cc = recvfrom(port->sock, tmp, packetLen, 0,
-                                         (struct sockaddr *) & (port->raddr), &addrLen);
+               cc = read(port->sock, tmp, packetLen);
                if (cc < 0)
                        return (STATUS_ERROR);
 
@@ -224,18 +222,13 @@ PacketSend(Port *port,
                   PacketLen len,
                   bool nonBlocking)
 {
-       PacketLen       totalLen;
-       int                     addrLen = sizeof(struct sockaddr_in);
+       PacketLen       doneLen;
 
        Assert(!nonBlocking);
        Assert(buf);
 
-       totalLen = len;
-
-       len = sendto(port->sock, (Addr) buf, totalLen, /* flags */ 0,
-                                (struct sockaddr *) & (port->raddr), addrLen);
-
-       if (len < totalLen)
+       doneLen = write(port->sock,  buf, len);
+       if (doneLen < len)
        {
                sprintf(PQerrormsg,
                  "FATAL: PacketSend: couldn't send complete packet: errno=%d\n",
index a936fff9eba3bb8d62fbe093524d1c7750d4a12a..2eef75ca5e969479b3b166a6c1d46d5d2cd8ee32 100644 (file)
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.59 1997/10/25 01:09:55 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.60 1997/11/07 20:51:47 momjian Exp $
  *
  * NOTES
  *
@@ -131,7 +131,8 @@ static char *progname = (char *) NULL;
  */
 static char Execfile[MAXPATHLEN] = "";
 
-static int     ServerSock = INVALID_SOCK;      /* stream socket server */
+static int ServerSock_INET = INVALID_SOCK;     /* stream socket server */
+static int ServerSock_UNIX = INVALID_SOCK;     /* stream socket server */
 
 /*
  * Set by the -o option
@@ -148,6 +149,8 @@ static char ExtraOptions[ARGV_SIZE] = "";
 static int     Reinit = 1;
 static int     SendStop = 0;
 
+static int      NetServer = 0; /* if not zero, postmaster listen for
+                                 non-local connections */
 static int     MultiplexedBackends = 0;
 static int     MultiplexedBackendPort;
 
@@ -244,8 +247,8 @@ PostmasterMain(int argc, char *argv[])
        char       *hostName;
        int                     status;
        int                     silentflag = 0;
-       char            hostbuf[MAXHOSTNAMELEN];
        bool            DataDirOK;              /* We have a usable PGDATA value */
+       char            hostbuf[MAXHOSTNAMELEN];
 
        progname = argv[0];
 
@@ -267,7 +270,7 @@ PostmasterMain(int argc, char *argv[])
        DataDir = getenv("PGDATA"); /* default value */
 
        opterr = 0;
-       while ((opt = getopt(argc, argv, "a:B:b:D:dm:Mno:p:Ss")) != EOF)
+       while ((opt = getopt(argc, argv, "a:B:b:D:dim:Mno:p:Ss")) != EOF)
        {
                switch (opt)
                {
@@ -315,6 +318,9 @@ PostmasterMain(int argc, char *argv[])
                                else
                                        DebugLvl = 1;
                                break;
+                       case 'i':
+                               NetServer = 1;
+                               break;
                        case 'm':
                                MultiplexedBackends = 1;
                                MultiplexedBackendPort = atoi(optarg);
@@ -387,11 +393,20 @@ PostmasterMain(int argc, char *argv[])
                exit(1);
        }
 
-
-       status = StreamServerPort(hostName, PostPortName, &ServerSock);
+       if (NetServer)
+         {
+           status = StreamServerPort(hostName, PostPortName, &ServerSock_INET);
+           if (status != STATUS_OK)
+             {
+               fprintf(stderr, "%s: cannot create INET stream port\n",
+                       progname);
+               exit(1);
+             }
+         }
+       status = StreamServerPort(NULL, PostPortName, &ServerSock_UNIX);
        if (status != STATUS_OK)
        {
-               fprintf(stderr, "%s: cannot create stream port\n",
+               fprintf(stderr, "%s: cannot create UNIX stream port\n",
                                progname);
                exit(1);
        }
@@ -459,6 +474,7 @@ usage(const char *progname)
        fprintf(stderr, "\t-b backend\tuse a specific backend server executable\n");
        fprintf(stderr, "\t-d [1|2|3]\tset debugging level\n");
        fprintf(stderr, "\t-D datadir\tset data directory\n");
+       fprintf(stderr, "\t-i \tlisten on TCP/IP sockets as well as Unix domain socket\n");
        fprintf(stderr, "\t-m \tstart up multiplexing backends\n");
        fprintf(stderr, "\t-n\t\tdon't reinitialize shared memory after abnormal exit\n");
        fprintf(stderr, "\t-o option\tpass 'option' to each backend servers\n");
@@ -471,13 +487,11 @@ usage(const char *progname)
 static int
 ServerLoop(void)
 {
-       int                     serverFd = ServerSock;
-       fd_set          rmask,
-                               basemask;
+       fd_set          rmask, basemask;
        int                     nSockets,
                                nSelected,
                                status,
-                               newFd;
+                               oldFd, newFd;
        Dlelem     *next,
                           *curr;
 
@@ -493,10 +507,16 @@ ServerLoop(void)
        int                     orgsigmask = sigblock(0);
 
 #endif
-
-       nSockets = ServerSock + 1;
        FD_ZERO(&basemask);
-       FD_SET(ServerSock, &basemask);
+       FD_SET(ServerSock_UNIX, &basemask);
+       nSockets = ServerSock_UNIX;
+       if (ServerSock_INET != INVALID_SOCK)
+         {
+           FD_SET(ServerSock_INET, &basemask);
+           if (ServerSock_INET > ServerSock_UNIX) 
+             nSockets = ServerSock_INET;
+         }
+       nSockets++;
 
 #ifdef HAVE_SIGPROCMASK
        sigprocmask(0, 0, &oldsigmask);
@@ -542,15 +562,21 @@ ServerLoop(void)
                }
 
                /* new connection pending on our well-known port's socket */
-               if (FD_ISSET(ServerSock, &rmask))
+               oldFd = -1;
+               if (FD_ISSET(ServerSock_UNIX, &rmask)) 
+                 oldFd = ServerSock_UNIX;
+               else if (ServerSock_INET != INVALID_SOCK && 
+                        FD_ISSET(ServerSock_INET, &rmask))
+                 oldFd = ServerSock_INET;
+               if (oldFd >= 0)
                {
-
+                 
                        /*
                         * connect and make an addition to PortList.  If the
                         * connection dies and we notice it, just forget about the
                         * whole thing.
                         */
-                       if (ConnCreate(serverFd, &newFd) == STATUS_OK)
+                       if (ConnCreate(oldFd, &newFd) == STATUS_OK)
                        {
                                if (newFd >= nSockets)
                                        nSockets = newFd + 1;
@@ -560,8 +586,12 @@ ServerLoop(void)
                                        fprintf(stderr, "%s: ServerLoop: connect on %d\n",
                                                        progname, newFd);
                        }
+                       else if (DebugLvl)
+                         fprintf(stderr, 
+                                 "%s: ServerLoop: connect failed: (%d) %s\n",
+                                 progname, errno, strerror(errno));
                        --nSelected;
-                       FD_CLR(ServerSock, &rmask);
+                       FD_CLR(oldFd, &rmask);
                }
 
                if (DebugLvl > 1)
@@ -793,7 +823,7 @@ ConnStartup(Port *port, int *status,
 static void
 send_error_reply(Port *port, const char *errormsg)
 {
-       int                     rc;                             /* return code from sendto */
+       int                     rc;     /* return code from write */
        char       *reply;
 
        /*
@@ -812,7 +842,7 @@ send_error_reply(Port *port, const char *errormsg)
 
        sprintf(reply, "E%s", errormsg);
 
-       rc = send(port->sock, (Addr) reply, strlen(reply) + 1, /* flags */ 0);
+       rc = write(port->sock, (Addr) reply, strlen(reply) + 1);
        if (rc < 0)
                fprintf(stderr,
                                "%s: ServerLoop:\t\t"
@@ -1269,8 +1299,8 @@ ExitPostmaster(int status)
         * Not sure of the semantics here.      When the Postmaster dies, should
         * the backends all be killed? probably not.
         */
-       if (ServerSock != INVALID_SOCK)
-               close(ServerSock);
+       if (ServerSock_INET != INVALID_SOCK) close(ServerSock_INET);
+       if (ServerSock_UNIX != INVALID_SOCK) close(ServerSock_UNIX);
        exitpg(status);
 }
 
@@ -1285,9 +1315,10 @@ dumpstatus(SIGNAL_ARGS)
 
                fprintf(stderr, "%s: dumpstatus:\n", progname);
                fprintf(stderr, "\tsock %d: nBytes=%d, laddr=0x%lx, raddr=0x%lx\n",
-                               port->sock, port->nBytes,
-                               (long int) port->laddr.sin_addr.s_addr,
-                               (long int) port->raddr.sin_addr.s_addr);
+                       port->sock, port->nBytes,
+                       (long int) port->laddr.in.sin_addr.s_addr,
+                       (long int) port->raddr.in.sin_addr.s_addr);
                curr = DLGetSucc(curr);
        }
 }
+
index 8654c11ad8bb14f2701bc14f2d1877810dd8fd8a..729f9a00039919f51082bce99b92a148a5635d62 100644 (file)
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.51 1997/11/02 15:25:45 vadim Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.52 1997/11/07 20:51:54 momjian Exp $
  *
  * NOTES
  *       this is the "main" module of the postgres backend and
@@ -832,7 +832,6 @@ PostgresMain(int argc, char *argv[])
 
        bool            multiplexedBackend;
        char       *hostName;           /* the host name of the backend server */
-       char            hostbuf[MAXHOSTNAMELEN];
        int                     serverSock;
        int                     serverPortnum = 0;
        int                     nSelected;              /* number of descriptors ready from
@@ -884,15 +883,10 @@ PostgresMain(int argc, char *argv[])
 #endif
 
        /*
-        * get hostname is either the environment variable PGHOST or
-        * 'localhost'
+        * get hostname is either the environment variable PGHOST or NULL
+        * NULL means Unix-socket only
         */
-       if (!(hostName = getenv("PGHOST")))
-       {
-               if (gethostname(hostbuf, MAXHOSTNAMELEN) < 0)
-                       strcpy(hostbuf, "localhost");
-               hostName = hostbuf;
-       }
+       hostName = getenv("PGHOST");
 
        DataDir = getenv("PGDATA"); /* default */
        multiplexedBackend = false; /* default */
@@ -1252,7 +1246,7 @@ PostgresMain(int argc, char *argv[])
        if (multiplexedBackend)
        {
                if (serverPortnum == 0 ||
-                       StreamServerPort(hostName, serverPortnum, &serverSock) != STATUS_OK)
+                   StreamServerPort(hostName, serverPortnum, &serverSock) != STATUS_OK)
                {
                        fprintf(stderr, "Postgres: cannot create stream port %d\n", serverPortnum);
                        exit(1);
@@ -1343,7 +1337,7 @@ PostgresMain(int argc, char *argv[])
        if (IsUnderPostmaster == false)
        {
                puts("\nPOSTGRES backend interactive interface");
-               puts("$Revision: 1.51 $ $Date: 1997/11/02 15:25:45 $");
+               puts("$Revision: 1.52 $ $Date: 1997/11/07 20:51:54 $");
        }
 
        /* ----------------
index a6e670e5f6a0244ce5c38229c2e30879db51f085..1589c83dcec72a4354e5fbe2ab761e2553f5282d 100644 (file)
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.15 1997/11/07 06:38:46 thomas Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.16 1997/11/07 20:51:58 momjian Exp $
  *
  * NOTES
  *             InitPostgres() is the function called from PostgresMain
@@ -310,9 +310,6 @@ InitCommunication()
        {
                SystemPortAddress address = atoi(postport);
 
-               if (address == 0)
-                       elog(FATAL, "InitCommunication: invalid POSTPORT");
-
                if (MyBackendTag == -1)
                        elog(FATAL, "InitCommunication: missing POSTID");
 
index 65892b8a81829661df122d19d476c04589ff1733..399e3231b65c928efb93a6bd107bfde156d0b661 100644 (file)
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pqcomm.h,v 1.15 1997/09/12 22:26:13 momjian Exp $
+ * $Id: pqcomm.h,v 1.16 1997/11/07 20:52:06 momjian Exp $
  *
  * NOTES
  *       Some of this should move to libpq.h
@@ -19,6 +19,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <netinet/in.h>
+#include <sys/un.h>
 
 
 /*
 #define PATH_SIZE              64
 #define ARGV_SIZE              64
 
+#define UNIXSOCK_PATH(sun,port) \
+  sprintf(sun.sun_path,"/tmp/.s.PGSQL.%d",port) + sizeof(sun.sun_family) + 1;
+
+
 /* The various kinds of startup messages are for the various kinds of
    user authentication systems.  In the beginning, there was only
    STARTUP_MSG and all connections were unauthenticated.  Now, there are
@@ -106,9 +111,10 @@ typedef struct Port
        int                     sock;                   /* file descriptor */
        int                     mask;                   /* select mask */
        int                     nBytes;                 /* nBytes read in so far */
-       struct sockaddr_in laddr;       /* local addr (us) */
-       struct sockaddr_in raddr;       /* remote addr (them) */
-
+       /* local addr (us) */
+        union {  struct sockaddr_in in; struct sockaddr_un un; } laddr;
+        /* remote addr (them) */
+        union {  struct sockaddr_in in; struct sockaddr_un un; }  raddr;
        /*
         * PacketBufId                          id;
 *//* id of packet buf currently in use */
index 942082b0d00ab42a66ae3d3b1ca963c1dc85d9a7..f5ace69dc07a032c612fbf5644e89db399dd522b 100644 (file)
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.42 1997/09/18 20:22:46 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-connect.c,v 1.43 1997/11/07 20:52:15 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -86,7 +86,7 @@ static PQconninfoOption PQconninfoOptions[] = {
        {"dbname", "PGDATABASE", NULL, NULL,
        "Database-Name", "", 20},
 
-       {"host", "PGHOST", DefaultHost, NULL,
+       {"host", "PGHOST", NULL, NULL,
        "Database-Host", "", 40},
 
        {"port", "PGPORT", DEF_PGPORT, NULL,
@@ -340,11 +340,8 @@ PQsetdb(const char *pghost, const char *pgport, const char *pgoptions, const cha
 
                if (!pghost || pghost[0] == '\0')
                {
-                       if (!(tmp = getenv("PGHOST")))
-                       {
-                               tmp = DefaultHost;
-                       }
-                       conn->pghost = strdup(tmp);
+                 conn->pghost = NULL;
+                 if (tmp = getenv("PGHOST")) conn->pghost = strdup(tmp);
                }
                else
                        conn->pghost = strdup(pghost);
@@ -473,7 +470,7 @@ connectDB(PGconn *conn)
        MsgType         msgtype;
        int                     laddrlen = sizeof(struct sockaddr);
        Port       *port = conn->port;
-       int                     portno;
+       int                     portno, family, len;
 
        /*
         * Initialize the startup packet.
@@ -501,7 +498,8 @@ connectDB(PGconn *conn)
        port = (Port *) malloc(sizeof(Port));
        MemSet((char *) port, 0, sizeof(Port));
 
-       if (!(hp = gethostbyname(conn->pghost)) || hp->h_addrtype != AF_INET)
+       if (conn->pghost && 
+           (!(hp = gethostbyname(conn->pghost)) || hp->h_addrtype != AF_INET))
        {
                (void) sprintf(conn->errorMessage,
                                           "connectDB() --  unknown hostname: %s\n",
@@ -509,29 +507,37 @@ connectDB(PGconn *conn)
                goto connect_errReturn;
        }
        MemSet((char *) &port->raddr, 0, sizeof(port->raddr));
-       memmove((char *) &(port->raddr.sin_addr),
-                       (char *) hp->h_addr,
-                       hp->h_length);
-       port->raddr.sin_family = AF_INET;
        portno = atoi(conn->pgport);
-       port->raddr.sin_port = htons((unsigned short) (portno));
-
+       port->raddr.in.sin_family = family = conn->pghost ? AF_INET : AF_UNIX;
+       if (family == AF_INET)
+         {
+           memmove((char *) &(port->raddr.in.sin_addr),
+                   (char *) hp->h_addr,
+                   hp->h_length);
+           port->raddr.in.sin_port = htons((unsigned short) (portno));
+           len = sizeof(struct sockaddr_in);
+         }
+       else
+         {
+           len = UNIXSOCK_PATH(port->raddr.un,portno);
+         }
        /* connect to the server  */
-       if ((port->sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+       if ((port->sock = socket(family, SOCK_STREAM, 0)) < 0)
        {
                (void) sprintf(conn->errorMessage,
                                           "connectDB() -- socket() failed: errno=%d\n%s\n",
                                           errno, strerror(errno));
                goto connect_errReturn;
        }
-       if (connect(port->sock, (struct sockaddr *) & port->raddr,
-                               sizeof(port->raddr)) < 0)
+       if (connect(port->sock, (struct sockaddr *) &port->raddr, len) < 0)
        {
                (void) sprintf(conn->errorMessage,
-                                          "connectDB() failed: Is the postmaster running at '%s' on port '%s'?\n",
-                                          conn->pghost, conn->pgport);
+                              "connectDB() failed: Is the postmaster running at '%s' on port '%s'?\n",
+                              conn->pghost ? conn->pghost : "UNIX Socket", 
+                              conn->pgport);
                goto connect_errReturn;
        }
+       if (family == AF_INET)
        {
                struct protoent *pe;
                int                     on = 1;
@@ -773,19 +779,11 @@ packetSend(Port *port,
                   PacketLen len,
                   bool nonBlocking)
 {
-       PacketLen       totalLen;
-       int                     addrLen = sizeof(struct sockaddr_in);
-
-       totalLen = len;
-
-       len = sendto(port->sock, (Addr) buf, totalLen, /* flags */ 0,
-                                (struct sockaddr *) & (port->raddr), addrLen);
-
-       if (len < totalLen)
+       PacketLen doneLen = write(port->sock,  buf, len);
+       if (doneLen < len)
        {
                return (STATUS_ERROR);
        }
-
        return (STATUS_OK);
 }