Add missing format attributes

Add __attribute__ decorations for printf format checking to the places that
were missing them.  Fix the resulting warnings.  Add
-Wmissing-format-attribute to the standard set of warnings for GCC, so these
don't happen again.

The warning fixes here are relatively harmless.  The one serious problem
discovered by this was already committed earlier in
cf15fb5cabfbc71e07be23cfbc813daee6c5014f.

7 files changed, 10 insertions, 9 deletions

diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index 62206ecda4d..1611551638b 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -119,8 +119,8 @@ static int	_discoverArchiveFormat(ArchiveHandle *AH);
 
 static int	RestoringToDB(ArchiveHandle *AH);
 static void dump_lo_buf(ArchiveHandle *AH);
-static void _write_msg(const char *modulename, const char *fmt, va_list ap);
-static void _die_horribly(ArchiveHandle *AH, const char *modulename, const char *fmt, va_list ap);
+static void _write_msg(const char *modulename, const char *fmt, va_list ap) __attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 0)));
+static void _die_horribly(ArchiveHandle *AH, const char *modulename, const char *fmt, va_list ap) __attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 0)));
 
 static void dumpTimestamp(ArchiveHandle *AH, const char *msg, time_t tim);
 static void SetOutput(ArchiveHandle *AH, char *filename, int compression);
diff --git a/src/bin/pg_dump/pg_backup_tar.c b/src/bin/pg_dump/pg_backup_tar.c
index 041f9f9cbbb..45aab1e2364 100644
--- a/src/bin/pg_dump/pg_backup_tar.c
+++ b/src/bin/pg_dump/pg_backup_tar.c
@@ -112,7 +112,7 @@ static void tarClose(ArchiveHandle *AH, TAR_MEMBER *TH);
 #ifdef __NOT_USED__
 static char *tarGets(char *buf, size_t len, TAR_MEMBER *th);
 #endif
-static int	tarPrintf(ArchiveHandle *AH, TAR_MEMBER *th, const char *fmt,...);
+static int	tarPrintf(ArchiveHandle *AH, TAR_MEMBER *th, const char *fmt, ...) __attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 4)));
 
 static void _tarAddFile(ArchiveHandle *AH, TAR_MEMBER *th);
 static int	_tarChecksum(char *th);
diff --git a/src/include/lib/stringinfo.h b/src/include/lib/stringinfo.h
index 3657a685395..79b09d23b43 100644
--- a/src/include/lib/stringinfo.h
+++ b/src/include/lib/stringinfo.h
@@ -105,7 +105,8 @@ __attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));
  * without modifying str.  Typically the caller would enlarge str and retry
  * on false return --- see appendStringInfo for standard usage pattern.
  */
-extern bool appendStringInfoVA(StringInfo str, const char *fmt, va_list args);
+extern bool appendStringInfoVA(StringInfo str, const char *fmt, va_list args)
+__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 0)));
 
 /*------------------------
  * appendStringInfoString
diff --git a/src/interfaces/ecpg/ecpglib/descriptor.c b/src/interfaces/ecpg/ecpglib/descriptor.c
index 5f56de03120..fb5aa9a185d 100644
--- a/src/interfaces/ecpg/ecpglib/descriptor.c
+++ b/src/interfaces/ecpg/ecpglib/descriptor.c
@@ -388,7 +388,7 @@ ECPGget_desc(int lineno, const char *desc_name, int index,...)
 				 */
 				if (arrsize > 0 && ntuples > arrsize)
 				{
-					ecpg_log("ECPGget_desc on line %d: incorrect number of matches; %d don't fit into array of %d\n",
+					ecpg_log("ECPGget_desc on line %d: incorrect number of matches; %d don't fit into array of %ld\n",
 							 lineno, ntuples, arrsize);
 					ecpg_raise(lineno, ECPG_TOO_MANY_MATCHES, ECPG_SQLSTATE_CARDINALITY_VIOLATION, NULL);
 					return false;
@@ -457,7 +457,7 @@ ECPGget_desc(int lineno, const char *desc_name, int index,...)
 		 */
 		if (data_var.ind_arrsize > 0 && ntuples > data_var.ind_arrsize)
 		{
-			ecpg_log("ECPGget_desc on line %d: incorrect number of matches (indicator); %d don't fit into array of %d\n",
+			ecpg_log("ECPGget_desc on line %d: incorrect number of matches (indicator); %d don't fit into array of %ld\n",
 					 lineno, ntuples, data_var.ind_arrsize);
 			ecpg_raise(lineno, ECPG_TOO_MANY_MATCHES, ECPG_SQLSTATE_CARDINALITY_VIOLATION, NULL);
 			return false;
diff --git a/src/interfaces/ecpg/ecpglib/error.c b/src/interfaces/ecpg/ecpglib/error.c
index 58024f47b0c..54fb6f94508 100644
--- a/src/interfaces/ecpg/ecpglib/error.c
+++ b/src/interfaces/ecpg/ecpglib/error.c
@@ -335,7 +335,7 @@ ecpg_raise_backend(int line, PGresult *result, PGconn *conn, int compat)
 		sqlca->sqlcode = ECPG_PGSQL;
 
 	/* %.*s is safe here as long as sqlstate is all-ASCII */
-	ecpg_log("raising sqlstate %.*s (sqlcode %d): %s\n",
+	ecpg_log("raising sqlstate %.*s (sqlcode %ld): %s\n",
 			 sizeof(sqlca->sqlstate), sqlca->sqlstate, sqlca->sqlcode, sqlca->sqlerrm.sqlerrmc);
 
 	/* free all memory we have allocated for the user */
diff --git a/src/interfaces/ecpg/ecpglib/execute.c b/src/interfaces/ecpg/ecpglib/execute.c
index 2fb54392c9e..a288b3ff125 100644
--- a/src/interfaces/ecpg/ecpglib/execute.c
+++ b/src/interfaces/ecpg/ecpglib/execute.c
@@ -332,7 +332,7 @@ ecpg_store_result(const PGresult *results, int act_field,
 		 */
 		if ((var->arrsize > 0 && ntuples > var->arrsize) || (var->ind_arrsize > 0 && ntuples > var->ind_arrsize))
 		{
-			ecpg_log("ecpg_store_result on line %d: incorrect number of matches; %d don't fit into array of %d\n",
+			ecpg_log("ecpg_store_result on line %d: incorrect number of matches; %d don't fit into array of %ld\n",
 					 stmt->lineno, ntuples, var->arrsize);
 			ecpg_raise(stmt->lineno, INFORMIX_MODE(stmt->compat) ? ECPG_INFORMIX_SUBSELECT_NOT_ONE : ECPG_TOO_MANY_MATCHES, ECPG_SQLSTATE_CARDINALITY_VIOLATION, NULL);
 			return false;
diff --git a/src/interfaces/ecpg/ecpglib/extern.h b/src/interfaces/ecpg/ecpglib/extern.h
index 0d55102d0da..96d49a4a6b7 100644
--- a/src/interfaces/ecpg/ecpglib/extern.h
+++ b/src/interfaces/ecpg/ecpglib/extern.h
@@ -161,7 +161,7 @@ void		ecpg_raise(int line, int code, const char *sqlstate, const char *str);
 void		ecpg_raise_backend(int line, PGresult *result, PGconn *conn, int compat);
 char	   *ecpg_prepared(const char *, struct connection *);
 bool		ecpg_deallocate_all_conn(int lineno, enum COMPAT_MODE c, struct connection * conn);
-void		ecpg_log(const char *format,...);
+void		ecpg_log(const char *format, ...) __attribute__((format(PG_PRINTF_ATTRIBUTE, 1, 2)));
 bool		ecpg_auto_prepare(int, const char *, const int, char **, const char *);
 void		ecpg_init_sqlca(struct sqlca_t * sqlca);