Miscellaneous code cleaning

- add <stdarg.h> or <varargs.h> in snprintf.h
  and remove those inclusions in the other #ifdef NEED_SNPRINTF_H codes

- remove the check of multiple inclusions in source (.c)  code
  (there is a bit loss of _cpp_ performance, but I prefer the gain of
   code reading and maintenance; and nowadays, disk caches and VM are
   correctly optimized ;-).

- protect all (well almost) header files against multiple inclusions

- add header (i.e. GPL license) in some include files

- reorganize a bit the way header files are included:

  First:
  #include <system_include_files>
  #include <external_package_include_files (e.g. gtk, glib etc.)>
  Then
  #include "ethereal_include_files"

  with the correct HAVE_XXX or NEED_XXX protections.

- add some HAVE_XXX checks before including some system header files

- add the same HAVE_XXX in wiretap as in ethereal

Please forgive me, if I break something (I've only compiled and regression
tested on Linux).

svn path=/trunk/; revision=2254

1 files changed, 3 insertions, 6 deletions

diff --git a/inet_ntop.c b/inet_ntop.c
index 0fc9883970..04303a46c4 100644
--- a/inet_ntop.c
+++ b/inet_ntop.c
@@ -20,14 +20,16 @@
 #endif
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$Id: inet_ntop.c,v 1.3 2000/01/10 17:32:51 gram Exp $";
+static char rcsid[] = "$Id: inet_ntop.c,v 1.4 2000/08/11 13:34:52 deniel Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
 
+#ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
+#endif
 
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
@@ -55,11 +57,6 @@ static char rcsid[] = "$Id: inet_ntop.c,v 1.3 2000/01/10 17:32:51 gram Exp $";
 #include <string.h>
 
 #ifdef NEED_SNPRINTF_H
-# ifdef HAVE_STDARG_H
-#  include <stdarg.h>
-# else
-#  include <varargs.h>
-# endif
 # include "snprintf.h"
 #endif