1 files changed, 90 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/sys/line_input.c b/contrib/syslinux-4.02/com32/lib/sys/line_input.c
new file mode 100644
index 0000000..a8c9926
--- /dev/null
+++ b/contrib/syslinux-4.02/com32/lib/sys/line_input.c
@@ -0,0 +1,90 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * line_input.c
+ *
+ * Line-oriented input discupline
+ */
+
+#include "file.h"
+#include <errno.h>
+#include <syslinux/idle.h>
+
+ssize_t __line_input(struct file_info * fp, char *buf, size_t bufsize,
+		     ssize_t(*get_char) (struct file_info *, void *, size_t))
+{
+    size_t n = 0;
+    char ch;
+    int rv;
+    ssize_t(*const Write) (struct file_info *, const void *, size_t) =
+	fp->oop->write;
+
+    for (;;) {
+	rv = get_char(fp, &ch, 1);
+
+	if (rv != 1) {
+	    syslinux_idle();
+	    continue;
+	}
+
+	switch (ch) {
+	case '\n':		/* Ignore incoming linefeed */
+	    break;
+
+	case '\r':
+	    *buf = '\n';
+	    Write(fp, "\n", 1);
+	    return n + 1;
+
+	case '\b':
+	    if (n > 0) {
+		n--;
+		buf--;
+		Write(fp, "\b \b", 3);
+	    }
+	    break;
+
+	case '\x15':		/* Ctrl-U */
+	    while (n) {
+		n--;
+		buf--;
+		Write(fp, "\b \b", 3);
+	    }
+	    break;
+
+	default:
+	    if (n < bufsize - 1) {
+		*buf = ch;
+		Write(fp, buf, 1);
+		n++;
+		buf++;
+	    }
+	    break;
+	}
+    }
+}