From a4ca9945a1f90b2c65d73ecc454d98028a4ea0d7 Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Fri, 16 Jun 2006 07:26:12 +0000
Subject: 1.remove str_checksum() (use StringHash() now) 2.prevent cross
 posting from mail

git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@3371 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 mbbsd/bbs.c   |  2 +-
 mbbsd/edit.c  |  2 +-
 mbbsd/mail.c  | 18 ++++++++++++++++++
 mbbsd/stuff.c | 11 -----------
 4 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/mbbsd/bbs.c b/mbbsd/bbs.c
index 9b0d736c..e31138a5 100644
--- a/mbbsd/bbs.c
+++ b/mbbsd/bbs.c
@@ -1323,7 +1323,7 @@ cross_post(int ent, fileheader_t * fhdr, const char *direct)
     }
 
     /* 借用變數 */
-    ent = str_checksum(fhdr->title);
+    ent = StringHash(fhdr->title);
     author = getbnum(xboard);
     assert(0<=author-1 && author-1<MAX_BOARD);
 
diff --git a/mbbsd/edit.c b/mbbsd/edit.c
index dc537f44..cf7ff8c1 100644
--- a/mbbsd/edit.c
+++ b/mbbsd/edit.c
@@ -1645,7 +1645,7 @@ write_file(char *fpath, int saveheader, int *islocal, char *mytitle)
 		line++;
 		/* check crosspost */
 		if (currstat == POSTING && po ) {
-		    int msgsum = str_checksum(msg);
+		    int msgsum = StringHash(msg);
 		    if (msgsum) {
 			if (postrecord.last_bid != currbid &&
 			    postrecord.checksum[po] == msgsum) {
diff --git a/mbbsd/mail.c b/mbbsd/mail.c
index b7011872..638dd393 100644
--- a/mbbsd/mail.c
+++ b/mbbsd/mail.c
@@ -1262,6 +1262,10 @@ mail_cross_post(int ent, fileheader_t * fhdr, const char *direct)
     char            genbuf[200];
     char            genbuf2[4];
 
+    if (!CheckPostPerm()) {
+	vmsg("對不起，您目前無法轉錄文章！");
+	return FULLUPDATE;
+    }
     move(2, 0);
     clrtoeol();
     move(1, 0);
@@ -1269,6 +1273,20 @@ mail_cross_post(int ent, fileheader_t * fhdr, const char *direct)
     if (*xboard == '\0' || !haspostperm(xboard))
 	return FULLUPDATE;
 
+    /* 借用變數 */
+    ent = StringHash(fhdr->title);
+    /* 同樣 title 不管對哪個板都算 cross post , 所以不用檢查 author */
+
+    if ((ent != 0 && ent == postrecord.checksum[0])) {
+	/* 檢查 cross post 次數 */
+	if (postrecord.times++ > MAX_CROSSNUM)
+	    anticrosspost();
+    } else {
+	postrecord.times = 0;
+	postrecord.last_bid = 0;
+	postrecord.checksum[0] = ent;
+    }
+
     ent = getbnum(xboard);
     assert(0<=ent-1 && ent-1<MAX_BOARD);
     if ( !(HasUserPerm(PERM_SYSOP)) &&
diff --git a/mbbsd/stuff.c b/mbbsd/stuff.c
index b4b479f2..6a37d816 100644
--- a/mbbsd/stuff.c
+++ b/mbbsd/stuff.c
@@ -131,17 +131,6 @@ subject(char *title)
 /* ----------------------------------------------------- */
 /* 字串轉換檢查函數                                      */
 /* ----------------------------------------------------- */
-int
-str_checksum(const char *str)
-{
-    int             n = 1;
-    if (strlen(str) < 6)
-	return 0;
-    while (*str)
-	n += *(str++) * (n);
-    return n;
-}
-
 /**
  * 將字串 s 轉為小寫存回 t
  * @param t allocated char array
-- 
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