Bug#35480: BOM detection code crashes mysql CLI with zero-sized input

MySQL client crashed if no input was passed to it. client/mysql.cc: Check if there's any data before reading it!
18 years ago · 7887a52d5c
1 changed files with 1 additions and 1 deletions
--- a/client/mysql.cc
+++ b/client/mysql.cc
@ -1821,7 +1821,7 @@ static int read_and_execute(bool interactive)
        the very beginning of a text file when
        you save the file using "Unicode UTF-8" format.
      */
-      if (!line_number &&
+      if (line && !line_number &&
           (uchar) line[0] == 0xEF &&
           (uchar) line[1] == 0xBB &&
           (uchar) line[2] == 0xBF)