Imported Upstream version 93u+upstream

1 files changed, 61 insertions, 0 deletions

diff --git a/src/lib/libast/comp/nftw.c b/src/lib/libast/comp/nftw.c
new file mode 100644
index 0000000..6c8c97a
--- /dev/null
+++ b/src/lib/libast/comp/nftw.c
@@ -0,0 +1,61 @@
+/***********************************************************************
+*                                                                      *
+*               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
+/*
+ * nftw implementation
+ */
+
+#include <ast.h>
+#include <ftw.h>
+
+static int	nftw_flags;
+static int	(*nftw_userf)(const char*, const struct stat*, int, struct FTW*);
+
+static int
+nftw_user(Ftw_t* ftw)
+{
+	register int	n = ftw->info;
+	struct FTW	nftw;
+	struct stat	st;
+
+	if (n & (FTW_C|FTW_NX))
+		n = FTW_DNR;
+	else if ((n & FTW_SL) && (!(nftw_flags & FTW_PHYSICAL) || stat(ftw->path, &st)))
+		n = FTW_SLN;
+	nftw.base = ftw->pathlen - ftw->namelen;
+	nftw.level = ftw->level;
+	nftw.quit = 0;
+	n = (*nftw_userf)(ftw->path, &ftw->statb, n, &nftw);
+	ftw->status = nftw.quit;
+	return n;
+}
+
+int
+nftw(const char* path, int(*userf)(const char*, const struct stat*, int, struct FTW*), int depth, int flags)
+{
+	NoP(depth);
+	nftw_userf = userf;
+	if (flags & FTW_CHDIR) flags &= ~FTW_DOT;
+	else flags |= FTW_DOT;
+	nftw_flags = flags;
+	return ftwalk(path, nftw_user, flags, NiL);
+}