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authorhabu <habu@0568b783-4c39-0410-ac80-bf13821ea2a2>
Fri, 25 Jan 2002 17:48:22 +0000 (17:48 +0000)
committerhabu <habu@0568b783-4c39-0410-ac80-bf13821ea2a2>
Fri, 25 Jan 2002 17:48:22 +0000 (17:48 +0000)
src/cmd4.c patch | blob | history

diff --git a/src/cmd4.c b/src/cmd4.c
index 5545a05..60a38c2 100644 (file)
--- a/src/cmd4.c
+++ b/src/cmd4.c
@@ -5027,6 +5027,7 @@ static void do_cmd_knowledge_inven(void)
 /*
  * Make screen dump to buffer
  */
+#define SCREEN_BUF_SIZE 65536
 cptr make_screen_dump(void)
 {
        int y, x, i;
@@ -5037,7 +5038,7 @@ cptr make_screen_dump(void)
        FILE *fff;
        char file_name[1024];
        char buf[4096];
-       char screen_buf[65536];
+       char screen_buf[SCREEN_BUF_SIZE];
 
        char *html_head[] = {
                "<html>\n<body text=\"#ffffff\" bgcolor=\"#000000\">\n",
@@ -5124,6 +5125,11 @@ cptr make_screen_dump(void)
 
        while (fgets(buf, 4096, fff))
        {
+               if (strlen(screen_buf) + strlen(buf) + 1 > SCREEN_BUF_SIZE)
+               {
+                       /* Too big screen dump size */
+                       return (NULL);
+               }
                strcat(screen_buf, buf);
        }
 
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