Imported Upstream version 93u+upstream

1 files changed, 72 insertions, 0 deletions

diff --git a/src/lib/libast/comp/resolvepath.c b/src/lib/libast/comp/resolvepath.c
new file mode 100644
index 0000000..a5cc4c9
--- /dev/null
+++ b/src/lib/libast/comp/resolvepath.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
+/*
+ * resolvepath implementation
+ */
+
+#define resolvepath	______resolvepath
+
+#include <ast.h>
+#include <error.h>
+
+#undef	resolvepath
+
+#undef	_def_map_ast
+#include <ast_map.h>
+#undef	_AST_API_H
+#include <ast_api.h>
+
+#if defined(__EXPORT__)
+#define extern	__EXPORT__
+#endif
+
+extern int
+resolvepath(const char* file, char* path, size_t size)
+{
+	register char*	s;
+	register int	n;
+	register int	r;
+
+	r = *file != '/';
+	n = strlen(file) + r + 1;
+	if (n >= size)
+	{
+#ifdef ENAMETOOLONG
+		errno = ENAMETOOLONG;
+#else
+		errno = ENOMEM;
+#endif
+		return 0;
+	}
+	if (!r)
+		s = path;
+	else if (!getcwd(path, size - n))
+		return 0;
+	else
+	{
+		s = path + strlen(path);
+		*s++ = '/';
+	}
+	strlcpy(s, file, size - (s - path));
+	return (s = pathcanon(path, size, PATH_PHYSICAL|PATH_DOTDOT|PATH_EXISTS)) ? (s - path) : -1;
+}