* dvblast.h: Annotate functions with printf stype params and use -Wformat-security.

Makefile

@@ -4,7 +4,7 @@
 VERSION = 2.0.0
 TOPDIR = `basename ${PWD}`
 
-CFLAGS += -Wall -O3 -fomit-frame-pointer
+CFLAGS += -Wall -Wformat-security -O3 -fomit-frame-pointer
 CFLAGS += -g
 LDLIBS += -lrt
 LDLIBS_DVBLAST += -lpthread

demux.c

@@ -1638,6 +1638,7 @@ char *demux_Iconv(void *_unused, const char *psz_encoding,
  * This code is from biTStream's examples and is under the WTFPL (see
  * LICENSE.WTFPL).
  *****************************************************************************/
+__attribute__ ((format(printf, 2, 3)))
 static void demux_Print(void *_unused, const char *psz_format, ...)
 {
     char psz_fmt[strlen(psz_format) + 2];

dvblast.h

@@ -192,11 +192,11 @@ void msg_Connect( const char *ident );
 void msg_Disconnect( void );
 
 /* */
-void msg_Info( void *_unused, const char *psz_format, ... );
-void msg_Err( void *_unused, const char *psz_format, ... );
-void msg_Warn( void *_unused, const char *psz_format, ... );
-void msg_Dbg( void *_unused, const char *psz_format, ... );
-void msg_Raw( void *_unused, const char *psz_format, ... );
+__attribute__ ((format(printf, 2, 3))) void msg_Info( void *_unused, const char *psz_format, ... );
+__attribute__ ((format(printf, 2, 3))) void msg_Err( void *_unused, const char *psz_format, ... );
+__attribute__ ((format(printf, 2, 3))) void msg_Warn( void *_unused, const char *psz_format, ... );
+__attribute__ ((format(printf, 2, 3))) void msg_Dbg( void *_unused, const char *psz_format, ... );
+__attribute__ ((format(printf, 2, 3))) void msg_Raw( void *_unused, const char *psz_format, ... );
 
 /* */
 mtime_t mdate( void );