From 552d3a5bcc9a78b460f75e190915331238fa1ef2 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 3 Jun 2008 07:06:23 +0000
Subject: [PATCH] * file.c (file_expand_path): fix for non-existent files and
 SFN of   symlinks.  [ruby-talk:303736]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog |  5 +++++
 file.c    | 35 ++++++++++++++++-------------------
 2 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 1c237683ba..c535b529ca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jun  3 16:06:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (file_expand_path): fix for non-existent files and SFN of
+	  symlinks.  [ruby-talk:303736]
+
 Tue Jun  3 15:12:01 2008  Akinori MUSHA  <knu@iDaemons.org>
 
 	* lib/set.rb (Set#classify): Back out the `group_by' alias.
diff --git a/file.c b/file.c
index 501762a5ea..447be55e0c 100644
--- a/file.c
+++ b/file.c
@@ -2830,57 +2830,54 @@ file_expand_path(VALUE fname, VALUE dname, VALUE result)
 
 #if USE_NTFS
     *p = '\0';
-    if (1 &&
-#ifdef __CYGWIN__
-	!(buf[0] == '/' && !buf[1]) &&
-#endif
-	!strpbrk(b = buf, "*?")) {
+    if (*(s = skipprefix(b = buf)) && !strpbrk(s, "*?")) {
 	size_t len;
 	WIN32_FIND_DATA wfd;
 #ifdef __CYGWIN__
 	int lnk_added = 0, is_symlink = 0;
 	struct stat st;
-	char w32buf[MAXPATHLEN], sep = 0;
-	p = 0;
+	char w32buf[MAXPATHLEN];
+	p = strrdirsep(s);
 	if (lstat(buf, &st) == 0 && S_ISLNK(st.st_mode)) {
 	    is_symlink = 1;
-	    p = strrdirsep(buf);
-	    if (!p) p = skipprefix(buf);
-	    if (p) {
-		sep = *p;
-		*p = '\0';
-	    }
+	    *p = '\0';
 	}
-	if (cygwin_conv_to_win32_path(buf, w32buf) == 0) {
+	if (cygwin_conv_to_win32_path((*buf ? buf : "/"), w32buf) == 0) {
 	    b = w32buf;
 	}
-	if (p) *p = sep;
-	else p = buf;
 	if (is_symlink && b == w32buf) {
+	    *p = '\\';
+	    strlcat(w32buf, p, sizeof(w32buf));
 	    len = strlen(p);
 	    if (len > 4 && STRCASECMP(p + len - 4, ".lnk") != 0) {
 		lnk_added = 1;
 		strlcat(w32buf, ".lnk", sizeof(w32buf));
 	    }
 	}
+	*p = '/';
 #endif
 	HANDLE h = FindFirstFile(b, &wfd);
 	if (h != INVALID_HANDLE_VALUE) {
 	    FindClose(h);
-	    p = strrdirsep(buf);
 	    len = strlen(wfd.cFileName);
 #ifdef __CYGWIN__
 	    if (lnk_added && len > 4 &&
 		STRCASECMP(wfd.cFileName + len - 4, ".lnk") == 0) {
 		wfd.cFileName[len -= 4] = '\0';
 	    }
+#else
+	    p = strrdirsep(s);
 #endif
-	    if (!p) p = buf;
-	    else ++p;
+	    ++p;
 	    BUFCHECK(bdiff + len >= buflen);
 	    memcpy(p, wfd.cFileName, len + 1);
 	    p += len;
 	}
+#ifdef __CYGWIN__
+	else {
+	    p += strlen(p);
+	}
+#endif
     }
 #endif