Imported Upstream version 93u+upstream

1 files changed, 128 insertions, 0 deletions

diff --git a/src/lib/libast/path/pathposix.c b/src/lib/libast/path/pathposix.c
new file mode 100644
index 0000000..d220591
--- /dev/null
+++ b/src/lib/libast/path/pathposix.c
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+/***********************************************************************
+*                                                                      *
+*               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 Research
+ *
+ * convert native path to posix fs representation in <buf,siz>
+ * length of converted path returned
+ * if return length >= siz then buf is indeterminate, but another call
+ * with siz=length+1 would work
+ * if buf==0 then required size is returned
+ */
+
+#include <ast.h>
+
+#if _UWIN
+
+#include <uwin.h>
+
+size_t
+pathposix(const char* path, char* buf, size_t siz)
+{
+	return uwin_unpath(path, buf, siz);
+}
+
+#else
+
+#if __CYGWIN__
+
+extern void	cygwin_conv_to_posix_path(const char*, char*);
+
+size_t
+pathposix(const char* path, char* buf, size_t siz)
+{
+	size_t		n;
+
+	if (!buf || siz < PATH_MAX)
+	{
+		char	tmp[PATH_MAX];
+
+		cygwin_conv_to_posix_path(path, tmp);
+		if ((n = strlen(tmp)) < siz && buf)
+			memcpy(buf, tmp, n + 1);
+		return n;
+	}
+	cygwin_conv_to_posix_path(path, buf);
+	return strlen(buf);
+}
+
+#else
+
+#if __EMX__ && 0 /* show me the docs */
+
+size_t
+pathposix(const char* path, char* buf, size_t siz)
+{
+	char*		s;
+	size_t		n;
+
+	if (!_posixpath(buf, path, siz))
+	{
+		for (s = buf; *s; s++)
+			if (*s == '/')
+				*s = '\\';
+	}
+	else if ((n = strlen(path)) < siz && buf)
+		memcpy(buf, path, n + 1);
+	return n;
+}
+
+#else
+
+#if __INTERIX
+
+#include <interix/interix.h>
+
+size_t
+pathposix(const char* path, char *buf, size_t siz)
+{
+	static const char	pfx[] = "/dev/fs";
+
+	*buf = 0;
+	if (!strncasecmp(path, pfx, sizeof(pfx) - 1))
+		strlcpy(buf, path, siz);
+	else
+		winpath2unix(path, PATH_NONSTRICT, buf, siz);
+	return strlen(buf);
+}
+
+#else
+
+size_t
+pathposix(const char* path, char* buf, size_t siz)
+{
+	size_t		n;
+
+	if ((n = strlen(path)) < siz && buf)
+		memcpy(buf, path, n + 1);
+	return n;
+}
+
+#endif
+
+#endif
+
+#endif
+
+#endif