From e8f43854acfe2f5891743f5a2dbba2b52e5d23de Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 26 Dec 1996 22:08:34 +0000
Subject: [PATCH] pq/signal() portability patch.  Also psql copy prompt fix.

---
 src/backend/bootstrap/bootstrap.c   | 11 ++++++-----
 src/backend/libpq/pqcomm.c          |  9 +++++----
 src/backend/libpq/pqsignal.c        | 11 ++++++-----
 src/backend/postmaster/postmaster.c | 19 ++++++++++---------
 src/backend/storage/lmgr/proc.c     |  8 ++++----
 src/backend/tcop/postgres.c         | 23 ++++++++++++-----------
 src/bin/psql/psql.c                 | 23 +++++++++--------------
 src/include/config.h                |  3 +--
 src/include/libpq/pqsignal.h        |  8 +-------
 src/interfaces/libpq/fe-exec.c      | 10 ++++++----
 src/interfaces/libpq/pqsignal.c     | 11 ++++++-----
 src/interfaces/libpq/pqsignal.h     |  8 +-------
 12 files changed, 67 insertions(+), 77 deletions(-)

diff --git a/src/backend/bootstrap/bootstrap.c b/src/backend/bootstrap/bootstrap.c
index 5fbb8637f06..b7c25f6633e 100644
--- a/src/backend/bootstrap/bootstrap.c
+++ b/src/backend/bootstrap/bootstrap.c
@@ -7,7 +7,7 @@
  * Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.12 1996/11/22 04:32:41 bryanh Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/bootstrap/bootstrap.c,v 1.13 1996/12/26 22:06:59 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -33,6 +33,7 @@
 #include "access/skey.h"
 #include "access/strat.h"
 #include "utils/rel.h"
+#include "libpq/pqsignal.h"
 
 #include "storage/block.h"
 #include "storage/off.h"
@@ -291,10 +292,10 @@ BootstrapMain(int argc, char *argv[])
      *  initialize signal handlers
      * ----------------
      */
-    signal(SIGINT, (sig_func) die);
+    pqsignal(SIGINT, (sig_func) die);
 #ifndef win32
-    signal(SIGHUP, (sig_func) die); 
-    signal(SIGTERM, (sig_func) die);
+    pqsignal(SIGHUP, (sig_func) die); 
+    pqsignal(SIGTERM, (sig_func) die);
 #endif /* win32 */    
 
     /* --------------------
@@ -406,7 +407,7 @@ BootstrapMain(int argc, char *argv[])
      * ----------------
      */
 #ifndef win32    
-    signal(SIGHUP, handle_warn);
+    pqsignal(SIGHUP, handle_warn);
 
     if (sigsetjmp(Warn_restart, 1) != 0) {
 #else
diff --git a/src/backend/libpq/pqcomm.c b/src/backend/libpq/pqcomm.c
index 1e0ace6f170..cb654723861 100644
--- a/src/backend/libpq/pqcomm.c
+++ b/src/backend/libpq/pqcomm.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.9 1996/11/24 04:05:20 bryanh Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/libpq/pqcomm.c,v 1.10 1996/12/26 22:07:03 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -36,6 +36,7 @@
  */
 #include <stdio.h>
 #include <string.h>
+#include <signal.h>
 #include <errno.h>
 #include <fcntl.h>
 #ifndef WIN32
@@ -57,7 +58,7 @@
 
 #include <postgres.h>
 
-#include <libpq/pqsignal.h>	/* substitute for <signal.h> */
+#include <libpq/pqsignal.h>
 #include <libpq/auth.h>
 #include <libpq/libpq.h>	/* where the declarations go */
 
@@ -496,7 +497,7 @@ pq_regoob(void (*fptr)())
 #else /* hpux */
     fcntl(fd, F_SETOWN, getpid());
 #endif /* hpux */
-    (void) signal(SIGURG,fptr);
+    (void) pqsignal(SIGURG,fptr);
 #endif /* WIN32 */    
 }
 
@@ -504,7 +505,7 @@ void
 pq_unregoob()
 {
 #ifndef WIN32
-    signal(SIGURG,SIG_DFL);
+    pqsignal(SIGURG,SIG_DFL);
 #endif /* WIN32 */    
 }
 
diff --git a/src/backend/libpq/pqsignal.c b/src/backend/libpq/pqsignal.c
index 2892d702b32..0c91f50df03 100644
--- a/src/backend/libpq/pqsignal.c
+++ b/src/backend/libpq/pqsignal.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/libpq/pqsignal.c,v 1.4 1996/11/18 02:25:09 bryanh Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/libpq/pqsignal.c,v 1.5 1996/12/26 22:07:08 momjian Exp $
  *
  * NOTES
  *	This shouldn't be in libpq, but the monitor and some other
@@ -39,12 +39,16 @@
  * ------------------------------------------------------------------------*/
 #include <postgres.h>
 
+#include <signal.h>
+
 #include <libpq/pqsignal.h>
 
 pqsigfunc
 pqsignal(int signo, pqsigfunc func)
 {
-#if defined(USE_POSIX_SIGNALS)
+#if !defined(USE_POSIX_SIGNALS)
+    return signal(signo, func);
+#else
     struct sigaction act, oact;
     
     act.sa_handler = func;
@@ -56,8 +60,5 @@ pqsignal(int signo, pqsigfunc func)
     if (sigaction(signo, &act, &oact) < 0)
 	return(SIG_ERR);
     return(oact.sa_handler);
-#else /* !USE_POSIX_SIGNALS */
-    Assert(0);
-    return 0;
 #endif /* !USE_POSIX_SIGNALS */
 }
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index ec48d582b0d..6146a52d373 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.29 1996/12/26 17:49:05 momjian Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.30 1996/12/26 22:07:17 momjian Exp $
  *
  * NOTES
  *
@@ -40,7 +40,7 @@
 
 #include "postgres.h"
 
-#include "libpq/pqsignal.h"     /* substitute for <signal.h> */
+#include <signal.h>
 #include <string.h>
 #include <stdlib.h>
 
@@ -73,6 +73,7 @@
 #include "libpq/libpq.h"
 #include "libpq/auth.h"
 #include "libpq/pqcomm.h"
+#include "libpq/pqsignal.h"
 #include "miscadmin.h"
 #include "version.h"
 #include "lib/dllist.h"
@@ -394,14 +395,14 @@ PostmasterMain(int argc, char *argv[])
     if (silentflag)
         pmdaemonize();
     
-    signal(SIGINT, pmdie);
+    pqsignal(SIGINT, pmdie);
 #ifndef WIN32
-    signal(SIGCHLD, reaper);
-    signal(SIGTTIN, SIG_IGN);
-    signal(SIGTTOU, SIG_IGN);
-    signal(SIGHUP, pmdie);
-    signal(SIGTERM, pmdie);
-    signal(SIGCONT, dumpstatus);
+    pqsignal(SIGCHLD, reaper);
+    pqsignal(SIGTTIN, SIG_IGN);
+    pqsignal(SIGTTOU, SIG_IGN);
+    pqsignal(SIGHUP, pmdie);
+    pqsignal(SIGTERM, pmdie);
+    pqsignal(SIGCONT, dumpstatus);
 #endif /* WIN32 */
     
 
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index cb1eda44d8a..3888fdcd9e5 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.11 1996/11/27 07:17:48 vadim Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.12 1996/12/26 22:07:28 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -46,7 +46,7 @@
  *      This is so that we can support more backends. (system-wide semaphore
  *      sets run out pretty fast.)                -ay 4/95
  *
- * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.11 1996/11/27 07:17:48 vadim Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.12 1996/12/26 22:07:28 momjian Exp $
  */
 #include <sys/time.h>
 #ifndef WIN32
@@ -65,7 +65,7 @@
 
 #include "postgres.h"
 #include "miscadmin.h"
-#include "libpq/pqsignal.h"	/* substitute for <signal.h> */
+#include "libpq/pqsignal.h"
 
 #include "access/xact.h"
 #include "utils/hsearch.h"
@@ -157,7 +157,7 @@ InitProcess(IPCKey key)
      * ------------------
      */
 #ifndef WIN32
-    signal(SIGALRM, HandleDeadLock);
+    pqsignal(SIGALRM, HandleDeadLock);
 #endif /* WIN32 we'll have to figure out how to handle this later */
 
     SpinAcquire(ProcStructLock);
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index be3aeb96f37..5dea9ede2a7 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.23 1996/12/07 04:39:06 momjian Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.24 1996/12/26 22:07:40 momjian Exp $
  *
  * NOTES
  *    this is the "main" module of the postgres backend and
@@ -15,11 +15,11 @@
  *
  *-------------------------------------------------------------------------
  */
-#include "libpq/pqsignal.h"     /* substitute for <signal.h> */
 
 #include <unistd.h>
 #include <stdio.h>
 #include <string.h>
+#include <signal.h>
 #include <time.h>
 #include <setjmp.h>
 #include <sys/time.h>
@@ -77,6 +77,7 @@
 #include "tcop/fastpath.h"
 
 #include "libpq/libpq.h"
+#include "libpq/pqsignal.h"
 #include "rewrite/rewriteHandler.h" /* for QueryRewrite() */
 
 /* ----------------
@@ -820,15 +821,15 @@ PostgresMain(int argc, char *argv[])
      *  register signal handlers.
      * ----------------
      */
-    signal(SIGINT, die);
+    pqsignal(SIGINT, die);
 
 #ifndef WIN32
-    signal(SIGHUP, die);
-    signal(SIGTERM, die);
-    signal(SIGPIPE, die);
-    signal(SIGUSR1, quickdie);
-    signal(SIGUSR2, Async_NotifyHandler);
-    signal(SIGFPE, FloatExceptionHandler);
+    pqsignal(SIGHUP, die);
+    pqsignal(SIGTERM, die);
+    pqsignal(SIGPIPE, die);
+    pqsignal(SIGUSR1, quickdie);
+    pqsignal(SIGUSR2, Async_NotifyHandler);
+    pqsignal(SIGFPE, FloatExceptionHandler);
 #endif /* WIN32 */
     
     /* --------------------
@@ -1246,7 +1247,7 @@ PostgresMain(int argc, char *argv[])
      */
 
 #ifndef WIN32    
-    signal(SIGHUP, handle_warn);
+    pqsignal(SIGHUP, handle_warn);
 
     if (sigsetjmp(Warn_restart, 1) != 0) {
 #else
@@ -1271,7 +1272,7 @@ PostgresMain(int argc, char *argv[])
      */
     if (IsUnderPostmaster == false) {
         puts("\nPOSTGRES backend interactive interface");
-        puts("$Revision: 1.23 $ $Date: 1996/12/07 04:39:06 $");
+        puts("$Revision: 1.24 $ $Date: 1996/12/26 22:07:40 $");
     }
     
     /* ----------------
diff --git a/src/bin/psql/psql.c b/src/bin/psql/psql.c
index 1fceedc249a..4b8583d7031 100644
--- a/src/bin/psql/psql.c
+++ b/src/bin/psql/psql.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.41 1996/12/26 20:56:40 bryanh Exp $
+ *    $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.42 1996/12/26 22:07:57 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -22,6 +22,7 @@
 #include <ctype.h>
 #include "postgres.h"
 #include "libpq-fe.h"
+#include "pqsignal.h"
 #include "stringutils.h"
 #include "psqlHelp.h"
 #ifdef NEED_STRDUP
@@ -513,19 +514,10 @@ SendQuery(bool * success_p, PsqlSettings * settings, const char *query,
 	    break;
 	case PGRES_COPY_IN:
 	    *success_p = true;
-	    if (copy_in) {
+	    if (copy_in)
 		handleCopyIn(results, false, copystream);
-	    } else {
-		char            c;
-		/*
-		 * eat extra newline still in input buffer
-		 * 
-		 */
-		fflush(stdin);
-		if ((c = getc(stdin)) != '\n' && c != EOF)
-		    (void) ungetc(c, stdin);
+	    else
 		handleCopyIn(results, !settings->quiet, stdin);
-	    }
 	    break;
 	case PGRES_NONFATAL_ERROR:
 	case PGRES_FATAL_ERROR:
@@ -1676,15 +1668,18 @@ setFout(PsqlSettings * ps, char *fname)
 	else
 	    fclose(ps->queryFout);
     }
-    if (!fname)
+    if (!fname) {
 	ps->queryFout = stdout;
+	pqsignal(SIGPIPE, SIG_DFL);
+    }
     else {
 	if (*fname == '|') {
-	    signal(SIGPIPE, SIG_IGN);
+	    pqsignal(SIGPIPE, SIG_IGN);
 	    ps->queryFout = popen(fname + 1, "w");
 	    ps->pipe = 1;
 	} else {
 	    ps->queryFout = fopen(fname, "w");
+	    pqsignal(SIGPIPE, SIG_DFL);
 	    ps->pipe = 0;
 	}
 	if (!ps->queryFout) {
diff --git a/src/include/config.h b/src/include/config.h
index bdb36d8aacc..8e4d841c1ac 100644
--- a/src/include/config.h
+++ b/src/include/config.h
@@ -85,8 +85,7 @@
 #if defined(dgux)
 #  define LINUX_ELF
 #  define NEED_UNION_SEMUN 
-#  define __USE_POSIX_SIGNALS
-#  define -DUSE_POSIX_SIGNALS
+#  define USE_POSIX_SIGNALS
 #endif
 
 #if defined(hpux)
diff --git a/src/include/libpq/pqsignal.h b/src/include/libpq/pqsignal.h
index c85b3443cea..389667c859d 100644
--- a/src/include/libpq/pqsignal.h
+++ b/src/include/libpq/pqsignal.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pqsignal.h,v 1.4 1996/11/24 04:07:17 bryanh Exp $
+ * $Id: pqsignal.h,v 1.5 1996/12/26 22:08:13 momjian Exp $
  *
  * NOTES
  *    This shouldn't be in libpq, but the monitor and some other
@@ -17,14 +17,8 @@
 #ifndef PQSIGNAL_H
 #define PQSIGNAL_H
 
-#include <signal.h>
-
 typedef void (*pqsigfunc)(int);
 
 extern pqsigfunc pqsignal(int signo, pqsigfunc func);
 
-#if defined(USE_POSIX_SIGNALS)
-#define	signal(signo, handler)	pqsignal(signo, (pqsigfunc)(handler))
-#endif /* USE_POSIX_SIGNALS */
-
 #endif	/* PQSIGNAL_H */
diff --git a/src/interfaces/libpq/fe-exec.c b/src/interfaces/libpq/fe-exec.c
index 1b3f9438ba2..c43dbbb0cb8 100644
--- a/src/interfaces/libpq/fe-exec.c
+++ b/src/interfaces/libpq/fe-exec.c
@@ -7,22 +7,24 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.23 1996/12/24 09:03:16 bryanh Exp $
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.24 1996/12/26 22:08:21 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 #include <stdlib.h>
 #include <unistd.h>
 #include <stdio.h>
+#include <signal.h>
 #include <string.h>
 #include <errno.h>
 #include "postgres.h"
 #include "libpq/pqcomm.h"
+#include "libpq/pqsignal.h"
 #include "libpq-fe.h"
-#include <signal.h>
 #include <sys/ioctl.h>
 #include TERMIOS_H_LOCATION
 
+
 #ifdef TIOCGWINSZ
 struct winsize screen_size;
 #else
@@ -1125,7 +1127,7 @@ PQprint(FILE *fout,
                 fout = popen(pagerenv, "w");
                 if (fout) {
                     usePipe = 1;
-                    signal(SIGPIPE, SIG_IGN);
+                    pqsignal(SIGPIPE, SIG_IGN);
                 } else
                   fout = stdout;
             }
@@ -1217,7 +1219,7 @@ PQprint(FILE *fout,
         free(fieldNames);
         if (usePipe) {
             pclose(fout);
-            signal(SIGPIPE, SIG_DFL);
+            pqsignal(SIGPIPE, SIG_DFL);
         }
         if (border)
           free(border);
diff --git a/src/interfaces/libpq/pqsignal.c b/src/interfaces/libpq/pqsignal.c
index 48868ef06a3..a177012051a 100644
--- a/src/interfaces/libpq/pqsignal.c
+++ b/src/interfaces/libpq/pqsignal.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/interfaces/libpq/pqsignal.c,v 1.2 1996/11/08 06:02:30 momjian Exp $
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpq/pqsignal.c,v 1.3 1996/12/26 22:08:30 momjian Exp $
  *
  * NOTES
  *	This shouldn't be in libpq, but the monitor and some other
@@ -18,12 +18,16 @@
  */
 #include <stdlib.h>
 
+#include <signal.h>
+
 #include "libpq/pqsignal.h"
 
 pqsigfunc
 pqsignal(int signo, pqsigfunc func)
 {
-#if defined(USE_POSIX_SIGNALS)
+#if !defined(USE_POSIX_SIGNALS)
+    return signal(signo, func);
+#else
     struct sigaction act, oact;
     
     act.sa_handler = func;
@@ -35,8 +39,5 @@ pqsignal(int signo, pqsigfunc func)
     if (sigaction(signo, &act, &oact) < 0)
 	return(SIG_ERR);
     return(oact.sa_handler);
-#else /* !USE_POSIX_SIGNALS */
-    exit(1); /* this should never be reached, pqsignal should only
-	      be called if USE_POSIX_SIGNALS is true*/
 #endif /* !USE_POSIX_SIGNALS */
 }
diff --git a/src/interfaces/libpq/pqsignal.h b/src/interfaces/libpq/pqsignal.h
index 77d01b0a8eb..4d57549443f 100644
--- a/src/interfaces/libpq/pqsignal.h
+++ b/src/interfaces/libpq/pqsignal.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pqsignal.h,v 1.1.1.1 1996/07/09 06:22:17 scrappy Exp $
+ * $Id: pqsignal.h,v 1.2 1996/12/26 22:08:34 momjian Exp $
  *
  * NOTES
  *    This shouldn't be in libpq, but the monitor and some other
@@ -17,16 +17,10 @@
 #ifndef PQSIGNAL_H
 #define PQSIGNAL_H
 
-#include <signal.h>
-
 #include "c.h"
 
 typedef void (*pqsigfunc)(int);
 
 extern pqsigfunc pqsignal(int signo, pqsigfunc func);
 
-#if defined(USE_POSIX_SIGNALS)
-#define	signal(signo, handler)	pqsignal(signo, (pqsigfunc)(handler))
-#endif /* USE_POSIX_SIGNALS */
-
 #endif	/* PQSIGNAL_H */
-- 
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