* add hashed filename utility API (good idea from kcwu)

git-svn-id: http://opensvn.csie.org/pttbbs/trunk@5064 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

2 files changed, 18 insertions, 1 deletions

diff --git a/pttbbs/common/bbs/path.c b/pttbbs/common/bbs/path.c
index 560ac793..cfe88ad6 100644
--- a/pttbbs/common/bbs/path.c
+++ b/pttbbs/common/bbs/path.c
@@ -40,7 +40,6 @@ sethomeman(char *buf, const char *userid)
     snprintf(buf, PATHLEN, str_home_file, userid[0], userid, "man");
 }
 
-
 void
 sethomefile(char *buf, const char *userid, const char *fname)
 {
@@ -49,6 +48,23 @@ sethomefile(char *buf, const char *userid, const char *fname)
     snprintf(buf, PATHLEN, str_home_file, userid[0], userid, fname);
 }
 
+void 
+setuserhashedfile(char *buf, const char *filename)
+{
+#ifdef USERHASHSTORE_ROOTPATH
+    // hash designed by kcwu
+    unsigned hash = StringHash(cuser.userid) & 0xffff;
+    assert(is_validuserid(cuser.userid));
+    snprintf(buf, PATHLEN, 
+            USERHASHSTORE_ROOTPATH "/%02x/%02x/%s.%s.%x",
+            (hash >> 8) & 0xff, hash & 0xff, 
+            filename, cuser.userid, cuser.firstlogin);
+#else
+    assert(!"you must define and initialize USERHASHSTORE_ROOTPATH");
+#endif
+}
+
+
 void
 setapath(char *buf, const char *boardname)
 {
diff --git a/pttbbs/include/cmbbs.h b/pttbbs/include/cmbbs.h
index 7cd6309c..393d849c 100644
--- a/pttbbs/include/cmbbs.h
+++ b/pttbbs/include/cmbbs.h
@@ -18,6 +18,7 @@ extern void sethomepath(char *buf, const char *userid);
 extern void sethomedir (char *buf, const char *userid);
 extern void sethomeman (char *buf, const char *userid);
 extern void sethomefile(char *buf, const char *userid, const char *fname);
+extern void setuserhashedfile(char *buf, const char *filename);
 // setbdir
 // setuserfile