Make pg_dump and friends consistently report both the filename and the

errno string when complaining of fopen failures.  Per gripe from Bob
Pawley, it's not always instantly obvious to the user which name we
tried to open.

src/bin/pg_dump/pg_backup_archiver.c

@@ -15,7 +15,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.147 2007/10/13 20:18:41 tgl Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.148 2007/10/28 21:55:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -799,8 +799,8 @@ SortTocFromFile(Archive *AHX, RestoreOptions *ropt)
 	/* Setup the file */
 	fh = fopen(ropt->tocFile, PG_BINARY_R);
 	if (!fh)
-		die_horribly(AH, modulename, "could not open TOC file: %s\n",
-					 strerror(errno));
+		die_horribly(AH, modulename, "could not open TOC file \"%s\": %s\n",
+					 ropt->tocFile, strerror(errno));
 
 	while (fgets(buf, sizeof(buf), fh) != NULL)
 	{
@@ -957,7 +957,14 @@ SetOutput(ArchiveHandle *AH, char *filename, int compression)
 	}
 
 	if (!AH->OF)
-		die_horribly(AH, modulename, "could not open output file: %s\n", strerror(errno));
+	{
+		if (filename)
+			die_horribly(AH, modulename, "could not open output file \"%s\": %s\n",
+						 filename, strerror(errno));
+		else
+			die_horribly(AH, modulename, "could not open output file: %s\n",
+						 strerror(errno));
+	}
 
 	return sav;
 }
@@ -1512,12 +1519,17 @@ _discoverArchiveFormat(ArchiveHandle *AH)
 	{
 		wantClose = 1;
 		fh = fopen(AH->fSpec, PG_BINARY_R);
+		if (!fh)
+			die_horribly(AH, modulename, "could not open input file \"%s\": %s\n",
+						 AH->fSpec, strerror(errno));
 	}
 	else
+	{
 		fh = stdin;
-
-	if (!fh)
-		die_horribly(AH, modulename, "could not open input file: %s\n", strerror(errno));
+		if (!fh)
+			die_horribly(AH, modulename, "could not open input file: %s\n",
+						 strerror(errno));
+	}
 
 	cnt = fread(sig, 1, 5, fh);
 

src/bin/pg_dump/pg_backup_custom.c

@@ -19,7 +19,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_custom.c,v 1.39 2007/08/06 01:38:14 tgl Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_custom.c,v 1.40 2007/10/28 21:55:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -169,23 +169,38 @@ InitArchiveFmt_Custom(ArchiveHandle *AH)
 	if (AH->mode == archModeWrite)
 	{
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			AH->FH = fopen(AH->fSpec, PG_BINARY_W);
+			if (!AH->FH)
+				die_horribly(AH, modulename, "could not open output file \"%s\": %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			AH->FH = stdout;
-
-		if (!AH->FH)
-			die_horribly(AH, modulename, "could not open output file \"%s\": %s\n", AH->fSpec, strerror(errno));
+			if (!AH->FH)
+				die_horribly(AH, modulename, "could not open output file: %s\n",
+							 strerror(errno));
+		}
 
 		ctx->hasSeek = checkSeek(AH->FH);
 	}
 	else
 	{
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			AH->FH = fopen(AH->fSpec, PG_BINARY_R);
+			if (!AH->FH)
+				die_horribly(AH, modulename, "could not open input file \"%s\": %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			AH->FH = stdin;
-		if (!AH->FH)
-			die_horribly(AH, modulename, "could not open input file \"%s\": %s\n", AH->fSpec, strerror(errno));
+			if (!AH->FH)
+				die_horribly(AH, modulename, "could not open input file: %s\n",
+							 strerror(errno));
+		}
 
 		ctx->hasSeek = checkSeek(AH->FH);
 

src/bin/pg_dump/pg_backup_files.c

@@ -20,7 +20,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_files.c,v 1.33 2007/08/06 01:38:15 tgl Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_files.c,v 1.34 2007/10/28 21:55:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -121,12 +121,19 @@ InitArchiveFmt_Files(ArchiveHandle *AH)
 				  "  normal use. Files will be written in the current working directory.\n");
 
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			AH->FH = fopen(AH->fSpec, PG_BINARY_W);
+			if (AH->FH == NULL)
+				die_horribly(NULL, modulename, "could not open output file \"%s\": %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			AH->FH = stdout;
-
-		if (AH->FH == NULL)
-			die_horribly(NULL, modulename, "could not open output file: %s\n", strerror(errno));
+			if (AH->FH == NULL)
+				die_horribly(NULL, modulename, "could not open output file: %s\n",
+							 strerror(errno));
+		}
 
 		ctx->hasSeek = checkSeek(AH->FH);
 
@@ -139,12 +146,19 @@ InitArchiveFmt_Files(ArchiveHandle *AH)
 	{							/* Read Mode */
 
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			AH->FH = fopen(AH->fSpec, PG_BINARY_R);
+			if (AH->FH == NULL)
+				die_horribly(NULL, modulename, "could not open input file \"%s\": %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			AH->FH = stdin;
-
-		if (AH->FH == NULL)
-			die_horribly(NULL, modulename, "could not open input file: %s\n", strerror(errno));
+			if (AH->FH == NULL)
+				die_horribly(NULL, modulename, "could not open input file: %s\n",
+							 strerror(errno));
+		}
 
 		ctx->hasSeek = checkSeek(AH->FH);
 
@@ -242,7 +256,8 @@ _StartData(ArchiveHandle *AH, TocEntry *te)
 #endif
 
 	if (tctx->FH == NULL)
-		die_horribly(AH, modulename, "could not open output file: %s\n", strerror(errno));
+		die_horribly(AH, modulename, "could not open output file \"%s\": %s\n",
+					 tctx->filename, strerror(errno));
 }
 
 static size_t
@@ -286,7 +301,8 @@ _PrintFileData(ArchiveHandle *AH, char *filename, RestoreOptions *ropt)
 #endif
 
 	if (AH->FH == NULL)
-		die_horribly(AH, modulename, "could not open input file: %s\n", strerror(errno));
+		die_horribly(AH, modulename, "could not open input file \"%s\": %s\n",
+					 filename, strerror(errno));
 
 	while ((cnt = GZREAD(buf, 1, 4095, AH->FH)) > 0)
 	{
@@ -507,7 +523,8 @@ _StartBlob(ArchiveHandle *AH, TocEntry *te, Oid oid)
 #endif
 
 	if (tctx->FH == NULL)
-		die_horribly(AH, modulename, "could not open large object file for input: %s\n", strerror(errno));
+		die_horribly(AH, modulename, "could not open large object file \"%s\" for input: %s\n",
+					 fname, strerror(errno));
 }
 
 /*

src/bin/pg_dump/pg_backup_tar.c

@@ -16,7 +16,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.60 2007/08/29 16:31:36 tgl Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.61 2007/10/28 21:55:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -172,15 +172,22 @@ InitArchiveFmt_Tar(ArchiveHandle *AH)
 	 */
 	if (AH->mode == archModeWrite)
 	{
-
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			ctx->tarFH = fopen(AH->fSpec, PG_BINARY_W);
+			if (ctx->tarFH == NULL)
+				die_horribly(NULL, modulename,
+							 "could not open TOC file \"%s\" for output: %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			ctx->tarFH = stdout;
-
-		if (ctx->tarFH == NULL)
-			die_horribly(NULL, modulename,
-				"could not open TOC file for output: %s\n", strerror(errno));
+			if (ctx->tarFH == NULL)
+				die_horribly(NULL, modulename,
+							 "could not open TOC file for output: %s\n",
+							 strerror(errno));
+		}
 
 		ctx->tarFHpos = 0;
 
@@ -210,14 +217,20 @@ InitArchiveFmt_Tar(ArchiveHandle *AH)
 	}
 	else
 	{							/* Read Mode */
-
 		if (AH->fSpec && strcmp(AH->fSpec, "") != 0)
+		{
 			ctx->tarFH = fopen(AH->fSpec, PG_BINARY_R);
+			if (ctx->tarFH == NULL)
+				die_horribly(NULL, modulename, "could not open TOC file \"%s\" for input: %s\n",
+							 AH->fSpec, strerror(errno));
+		}
 		else
+		{
 			ctx->tarFH = stdin;
-
-		if (ctx->tarFH == NULL)
-			die_horribly(NULL, modulename, "could not open TOC file for input: %s\n", strerror(errno));
+			if (ctx->tarFH == NULL)
+				die_horribly(NULL, modulename, "could not open TOC file for input: %s\n",
+							 strerror(errno));
+		}
 
 		/*
 		 * Make unbuffered since we will dup() it, and the buffers screw each

src/bin/pg_dump/pg_dumpall.c

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.93 2007/10/13 20:18:41 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.94 2007/10/28 21:55:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -398,8 +398,8 @@ main(int argc, char *argv[])
 		OPF = fopen(filename, PG_BINARY_W);
 		if (!OPF)
 		{
-			fprintf(stderr, _("%s: could not open the output file \"%s\"\n"),
-					progname, filename);
+			fprintf(stderr, _("%s: could not open the output file \"%s\": %s\n"),
+					progname, filename, strerror(errno));
 			exit(1);
 		}
 	}
@@ -1210,8 +1210,8 @@ dumpDatabases(PGconn *conn)
 			OPF = fopen(filename, PG_BINARY_A);
 			if (!OPF)
 			{
-				fprintf(stderr, _("%s: could not re-open the output file \"%s\"\n"),
-						progname, filename);
+				fprintf(stderr, _("%s: could not re-open the output file \"%s\": %s\n"),
+						progname, filename, strerror(errno));
 				exit(1);
 			}
 		}