From 180e0a9326a1383cf3a945e84700f99f5f9e4df1 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 9 Nov 2004 07:12:31 +0000
Subject: Make check_private_dir trimodal (check/create/ignore), not bimodal
 (create/ignore).

svn:r2733
---
 src/common/util.c | 33 +++++++++++++++++++--------------
 src/common/util.h |  3 ++-
 2 files changed, 21 insertions(+), 15 deletions(-)

(limited to 'src/common')

diff --git a/src/common/util.c b/src/common/util.c
index 292b7cfd5b..8311f95be5 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -701,9 +701,11 @@ file_status_t file_status(const char *fname)
 }
 
 /** Check whether dirname exists and is private.  If yes return 0.  If
- * it does not exist, and create is set, try to create it and return 0
- * on success.  Else return -1. */
-int check_private_dir(const char *dirname, int create)
+ * it does not exist, and check==CPD_CREATE is set, try to create it
+ * and return 0 on success. If it does not exist, and
+ * check==CPD_CHECK, and we think we can create it, return 0.  Else
+ * return -1. */
+int check_private_dir(const char *dirname, cpd_check_t check)
 {
   int r;
   struct stat st;
@@ -714,23 +716,26 @@ int check_private_dir(const char *dirname, int create)
           strerror(errno));
       return -1;
     }
-    if (!create) {
+    if (check == CPD_NONE) {
       log(LOG_WARN, "Directory %s does not exist.", dirname);
       return -1;
-    }
-    log(LOG_INFO, "Creating directory %s", dirname);
+    } else if (check == CPD_CREATE) {
+      log(LOG_INFO, "Creating directory %s", dirname);
 #ifdef MS_WINDOWS
-    r = mkdir(dirname);
+      r = mkdir(dirname);
 #else
-    r = mkdir(dirname, 0700);
+      r = mkdir(dirname, 0700);
 #endif
-    if (r) {
-      log(LOG_WARN, "Error creating directory %s: %s", dirname,
-          strerror(errno));
-      return -1;
-    } else {
-      return 0;
+      if (r) {
+        log(LOG_WARN, "Error creating directory %s: %s", dirname,
+            strerror(errno));
+        return -1;
+      }
     }
+
+    /* XXXX In the case where check==CPD_CHECK, we should look at the
+     * parent directory a little harder. */
+    return 0;
   }
   if (!(st.st_mode & S_IFDIR)) {
     log(LOG_WARN, "%s is not a directory", dirname);
diff --git a/src/common/util.h b/src/common/util.h
index c925834daf..9f116b5796 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -88,7 +88,8 @@ int read_all(int fd, char *buf, size_t count, int isSocket);
 typedef enum { FN_ERROR, FN_NOENT, FN_FILE, FN_DIR} file_status_t;
 file_status_t file_status(const char *filename);
 
-int check_private_dir(const char *dirname, int create);
+typedef enum { CPD_NONE, CPD_CREATE, CPD_CHECK } cpd_check_t;
+int check_private_dir(const char *dirname, cpd_check_t check);
 int write_str_to_file(const char *fname, const char *str, int bin);
 int write_bytes_to_file(const char *fname, const char *str, size_t len,
                         int bin);
-- 
cgit v1.2.3-54-g00ecf