*) reset cached dirent.d_type after stat()

   this fixes slash after link to a directory in ngx_http_autoindex_module;
*) use cached dirent.d_type as hint on all systems

the issues has been introduced in r2235

4 files changed, 16 insertions, 18 deletions

diff --git a/src/os/unix/ngx_files.c b/src/os/unix/ngx_files.c
index 2154bed49..618d4e214 100644
--- a/src/os/unix/ngx_files.c
+++ b/src/os/unix/ngx_files.c
@@ -274,9 +274,8 @@ ngx_read_dir(ngx_dir_t *dir)
     if (dir->de) {
 #if (NGX_HAVE_D_TYPE)
         dir->type = dir->de->d_type;
-        dir->valid_type = dir->type ? 1 : 0;
 #else
-        dir->valid_type = 0;
+        dir->type = 0;
 #endif
         return NGX_OK;
     }
diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 832dbbe0f..9cdfeabfe 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -24,7 +24,6 @@ typedef struct {
 
     unsigned                     type:8;
     unsigned                     valid_info:1;
-    unsigned                     valid_type:1;
 } ngx_dir_t;
 
 
@@ -200,31 +199,31 @@ ngx_int_t ngx_read_dir(ngx_dir_t *dir);
 #else
 #define ngx_de_namelen(dir)      ngx_strlen((dir)->de->d_name)
 #endif
-#define ngx_de_info(name, dir)   stat((const char *) name, &(dir)->info)
+
+static ngx_inline ngx_int_t
+ngx_de_info(u_char *name, ngx_dir_t *dir)
+{
+    dir->type = 0;
+    return stat((const char *) name, &dir->info);
+}
+
 #define ngx_de_info_n            "stat()"
 #define ngx_de_link_info(name, dir)  lstat((const char *) name, &(dir)->info)
 #define ngx_de_link_info_n       "lstat()"
 
 #if (NGX_HAVE_D_TYPE)
 
-#if (NGX_LINUX)
-
-/* XFS on Linux does not set dirent.d_type */
+/*
+ * some file systems (e.g. XFS on Linux and CD9660 on FreeBSD)
+ * do not set dirent.d_type
+ */
 
 #define ngx_de_is_dir(dir)                                                   \
     (((dir)->type) ? ((dir)->type == DT_DIR) : (S_ISDIR((dir)->info.st_mode)))
 #define ngx_de_is_file(dir)                                                  \
     (((dir)->type) ? ((dir)->type == DT_REG) : (S_ISREG((dir)->info.st_mode)))
 #define ngx_de_is_link(dir)                                                  \
-    (((dir)->type) ? ((dir)->type == DT_LINK) : (S_ISLNK((dir)->info.st_mode)))
-
-#else
-
-#define ngx_de_is_dir(dir)       ((dir)->type == DT_DIR)
-#define ngx_de_is_file(dir)      ((dir)->type == DT_REG)
-#define ngx_de_is_link(dir)      ((dir)->type == DT_LINK)
-
-#endif /* NGX_LINUX */
+    (((dir)->type) ? ((dir)->type == DT_LNK) : (S_ISLNK((dir)->info.st_mode)))
 
 #else
 
diff --git a/src/os/win32/ngx_files.c b/src/os/win32/ngx_files.c
index 3bb79b89e..fab74ae4d 100644
--- a/src/os/win32/ngx_files.c
+++ b/src/os/win32/ngx_files.c
@@ -322,7 +322,6 @@ ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir)
     }
 
     dir->valid_info = 1;
-    dir->valid_type = 1;
     dir->ready = 1;
 
     return NGX_OK;
@@ -338,6 +337,7 @@ ngx_read_dir(ngx_dir_t *dir)
     }
 
     if (FindNextFile(dir->dir, &dir->finddata) != 0) {
+        dir->type = 1;
         return NGX_OK;
     }
 
diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
index 605eee85e..cc9fa8f1e 100644
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -21,7 +21,7 @@ typedef struct {
     WIN32_FIND_DATA                 finddata;
 
     unsigned                        valid_info:1;
-    unsigned                        valid_type:1;
+    unsigned                        type:1;
     unsigned                        ready:1;
 } ngx_dir_t;