From b7a2761780c28cd0167ce4e51623e42298096708 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 17 Apr 2012 11:08:11 -0400
Subject: [PATCH] also ensure that write buffer is bounded when __stdio_write
 returns

assuming other code is correct, this should be a no-op, but better to
be safe...
---
 src/stdio/__stdio_write.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/stdio/__stdio_write.c b/src/stdio/__stdio_write.c
index dd97cf68..da45673f 100644
--- a/src/stdio/__stdio_write.c
+++ b/src/stdio/__stdio_write.c
@@ -22,6 +22,7 @@ size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
 		cnt = syscall_cp(SYS_writev, f->fd, iov, iovcnt);
 		pthread_cleanup_pop(0);
 		if (cnt == rem) {
+			f->wend = f->buf + f->buf_size;
 			f->wpos = f->wbase = f->buf;
 			return len;
 		}
-- 
2.20.1