version 1.0-971015v1_0_971015

https://cache.ruby-lang.org/pub/ruby/1.0/ruby-1.0-971015.tar.gz

Wed Oct 15 18:08:37 1997  Yukihiro Matsumoto  <matz@netlab.co.jp>

	* version 1.0-971015

1 files changed, 5 insertions, 4 deletions

diff --git a/io.c b/io.c
index 8d3fb7b879..b836469c47 100644
--- a/io.c
+++ b/io.c
@@ -1760,11 +1760,12 @@ io_ctl(io, req, arg, io_p)
 #endif
 	str_modify(arg);
 
-	if (arg->len < len) {
-	    str_resize(arg, len+1);
-	    arg->ptr[len] = 17;	/* a little sanity check here */
-	    narg = (long)arg->ptr;
+	if (len < arg->len) {
+	    len = arg->len;
 	}
+	str_resize(arg, len+1);
+	arg->ptr[len] = 17;	/* a little sanity check here */
+	narg = (long)arg->ptr;
     }
     fd = fileno(fptr->f);
 #ifdef HAVE_FCNTL