From 5ebf74d103034960dd8f1c4ad0cc15254317dce0 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Wed, 22 Aug 2012 18:36:44 +0000
Subject: [PATCH] Fix a bug in the PSFTP command parser which would cause it to
 hallucinate an extra empty argument word at the end of a line if the line
 ended in more than one whitespace character.

[originally from svn r9613]
---
 psftp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/psftp.c b/psftp.c
index 482d66ee..ef930bdd 100644
--- a/psftp.c
+++ b/psftp.c
@@ -2287,10 +2287,13 @@ struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags)
 	 *      >this has "quotes" in<
 	 *      >and"this"<
 	 */
-	while (*p) {
+	while (1) {
 	    /* skip whitespace */
 	    while (*p && (*p == ' ' || *p == '\t'))
 		p++;
+            /* terminate loop */
+            if (!*p)
+                break;
 	    /* mark start of word */
 	    q = r = p;		       /* q sits at start, r writes word */
 	    quoting = 0;
-- 
2.45.2