Imported Upstream version 1.1.11upstream/1.1.11upstream

1 files changed, 69 insertions, 0 deletions

diff --git a/librols/stdio/nixread.c b/librols/stdio/nixread.c
new file mode 100644
index 0000000..2d83987
--- /dev/null
+++ b/librols/stdio/nixread.c
@@ -0,0 +1,69 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)nixread.c	1.12 04/08/08 Copyright 1986, 1996-2003 J. Schilling */
+/*
+ *	Non interruptable extended read
+ *
+ *	Copyright (c) 1986, 1996-2003 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING.  If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "schilyio.h"
+#include <errno.h>
+
+EXPORT int
+_nixread(f, buf, count)
+	int	f;
+	void	*buf;
+	int	count;
+{
+	register char *p = (char *)buf;
+	register int ret;
+	register int total = 0;
+		int	oerrno = geterrno();
+
+	while (count > 0) {
+		while ((ret = read(f, p, count)) < 0) {
+			if (geterrno() == EINTR) {
+				/*
+				 * Set back old 'errno' so we don't change the
+				 * errno visible to the outside if we did
+				 * not fail.
+				 */
+				seterrno(oerrno);
+				continue;
+			}
+			return (ret);	/* Any other error */
+		}
+		if (ret == 0)		/* Something went wrong */
+			break;
+
+		total += ret;
+		count -= ret;
+		p += ret;
+	}
+	return (total);
+}