From: habu <habu@0568b783-4c39-0410-ac80-bf13821ea2a2>
Date: Tue, 26 Feb 2013 07:53:04 +0000 (+0000)
Subject: Use return value of write function
X-Git-Tag: v2.1.2~37
X-Git-Url: http://git.osdn.net/view?p=hengband%2Fhengband.git;a=commitdiff_plain;h=96d1569d8a15d2d976f3815342fe4a9e13defbd1

Use return value of write function

But fd_copy is unused currently
---

diff --git a/src/util.c b/src/util.c
index d6547b84c..0da8e9743 100644
--- a/src/util.c
+++ b/src/util.c
@@ -661,7 +661,19 @@ errr fd_copy(cptr file, cptr what)
 	/* Copy */
 	while ((read_num = read(src_fd, buf, 1024)) > 0)
 	{
-		write(dst_fd, buf, read_num);
+		int write_num = 0;
+		while (write_num < read_num)
+		{
+			int ret = write(dst_fd, buf + write_num, read_num - write_num);
+			if (ret < 0) {
+				/* Close files */
+				fd_close(src_fd);
+				fd_close(dst_fd);
+
+				return ret;
+			}
+			write_num += ret;
+		}
 	}
 
 	/* Close files */