Fix potential memory overrun...

diff --git a/utility.c b/utility.c
index 719cd98..2ec44d9 100644 (file)
--- a/utility.c
+++ b/utility.c
@@ -1606,7 +1606,7 @@ extern char *get_line_from_file(FILE *file)
                if (ch == EOF)
                        break;
                /* grow the line buffer as necessary */
-               if (idx > linebufsz-2)
+               while (idx > linebufsz-2)
                        linebuf = xrealloc(linebuf, linebufsz += GROWBY);
                linebuf[idx++] = (char)ch;
                if ((char)ch == '\n')