[nginx] Win32: ngx_open_dir() and ngx_close_dir() fixes.

[Maxim Dounin]

details:   http://hg.nginx.org/nginx/rev/a680bf4dddd5
branches:  
changeset: 5749:a680bf4dddd5
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Sat Jul 05 23:29:47 2014 +0400
description:
Win32: ngx_open_dir() and ngx_close_dir() fixes.

The ngx_open_dir() function changed to restore name passed to it.  This
fixes removing destination directory in dav module, as caught by dav.t.
The ngx_close_dir() function introduced to properly convert errors, as
FindClose() returns 0 on error.

diffstat:

 src/os/win32/ngx_files.c |  13 +++++++++++++
 src/os/win32/ngx_files.h |   2 +-
 2 files changed, 14 insertions(+), 1 deletions(-)

diffs (42 lines):

diff --git a/src/os/win32/ngx_files.c b/src/os/win32/ngx_files.c
--- a/src/os/win32/ngx_files.c
+++ b/src/os/win32/ngx_files.c
@@ -430,6 +430,8 @@ ngx_open_dir(ngx_str_t *name, ngx_dir_t 
 
     dir->dir = FindFirstFile((const char *) name->data, &dir->finddata);
 
+    name->data[name->len] = '\0';
+
     if (dir->dir == INVALID_HANDLE_VALUE) {
         return NGX_ERROR;
     }
@@ -459,6 +461,17 @@ ngx_read_dir(ngx_dir_t *dir)
 
 
 ngx_int_t
+ngx_close_dir(ngx_dir_t *dir)
+{
+    if (FindClose(dir->dir) == 0) {
+        return NGX_ERROR;
+    }
+
+    return NGX_OK;
+}
+
+
+ngx_int_t
 ngx_open_glob(ngx_glob_t *gl)
 {
     u_char     *p;
diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -193,7 +193,7 @@ ngx_int_t ngx_read_dir(ngx_dir_t *dir);
 #define ngx_read_dir_n              "FindNextFile()"
 
 
-#define ngx_close_dir(d)            FindClose((d)->dir)
+ngx_int_t ngx_close_dir(ngx_dir_t *dir);
 #define ngx_close_dir_n             "FindClose()"