From: Guido van Rossum <guido@python.org>
Date: Fri, 6 Mar 1998 15:32:40 +0000 (+0000)
Subject: When we have no setvbuf(), make the file totally unbuffered using
X-Git-Tag: v1.5.1~482
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f8b4de02a4895391483836448852ca9e65f6b2ee;p=python

When we have no setvbuf(), make the file totally unbuffered using
setbuf() if a buffer size of 0 or 1 byte is requested.
---

diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index f8c58ba454..d07aa69e61 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -165,7 +165,10 @@ PyFile_SetBufSize(f, bufsize)
 		}
 		setvbuf(((PyFileObject *)f)->f_fp, (char *)NULL,
 			type, bufsize);
-#endif /* HAVE_SETVBUF */
+#else /* !HAVE_SETVBUF */
+		if (bufsize <= 1)
+			setbuf(((PyFileObject *)f)->f_fp, (char *)NULL);
+#endif /* !HAVE_SETVBUF */
 	}
 }