Imported Upstream version 93u+upstream

1 files changed, 72 insertions, 0 deletions

diff --git a/src/lib/libast/features/botch.c b/src/lib/libast/features/botch.c
new file mode 100644
index 0000000..d30547d
--- /dev/null
+++ b/src/lib/libast/features/botch.c
@@ -0,0 +1,72 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+/*
+ * Glenn Fowler
+ * AT&T Bell Laboratories
+ *
+ * generate ast traps for botched standard prototypes
+ */
+
+#include <sys/types.h>
+
+#include "FEATURE/lib"
+#include "FEATURE/sys"
+
+#if _lib_getgroups
+extern int		getgroups(int, gid_t*);
+#endif
+
+int
+main()
+{
+#if _lib_getgroups
+	if (sizeof(int) > sizeof(gid_t))
+	{
+		int	n;
+		int	i;
+		int	r;
+		gid_t	groups[32 * sizeof(int) / sizeof(gid_t)];
+
+		r = sizeof(int) / sizeof(gid_t);
+		if ((n = getgroups((sizeof(groups) / sizeof(groups[0])) / r, groups)) > 0)
+			for (i = 1; i <= n; i++)
+			{
+				groups[i] = ((gid_t)0);
+				if (getgroups(i, groups) != i)
+					goto botched;
+				if (groups[i] != ((gid_t)0))
+					goto botched;
+				groups[i] = ((gid_t)-1);
+				if (getgroups(i, groups) != i)
+					goto botched;
+				if (groups[i] != ((gid_t)-1))
+					goto botched;
+			}
+	}
+	return 0;
+ botched:
+	printf("#undef	getgroups\n");
+	printf("#define getgroups	_ast_getgroups /* implementation botches gid_t* arg */\n");
+#endif
+	return 0;
+}