From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1L9gav-00069I-LS for qemu-devel@nongnu.org; Mon, 08 Dec 2008 08:56:17 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1L9gat-000694-Ng for qemu-devel@nongnu.org; Mon, 08 Dec 2008 08:56:17 -0500 Received: from [199.232.76.173] (port=50292 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1L9gat-000691-HA for qemu-devel@nongnu.org; Mon, 08 Dec 2008 08:56:15 -0500 Received: from alpha.arachsys.com ([91.203.57.7]:59592) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1L9gas-0007fv-So for qemu-devel@nongnu.org; Mon, 08 Dec 2008 08:56:15 -0500 Date: Mon, 8 Dec 2008 13:56:06 +0000 From: Chris Webb Message-ID: <20081208135606.GE19711@arachsys.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="iFRdW5/EC4oqxDHL" Content-Disposition: inline Subject: [Qemu-devel] Two VNC patches Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, kvm@vger.kernel.org --iFRdW5/EC4oqxDHL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I sent this pair of VNC-related patches to the qemu-devel list a couple of weeks back and I'm not sure whether they've got lost in the cracks or were in some way not acceptable and need fixing up. The first one is a straightforward bug-fix, and the second is a trivial convenience feature in the monitor which I imagine ought to be fairly uncontroversial? Cheers, Chris. --iFRdW5/EC4oqxDHL Content-Type: message/rfc822 Content-Disposition: inline Return-path: Envelope-to: chris+sent@arachsys.com Received: from arachsys.demon.co.uk ([83.104.159.199] helo=miranda.arachsys.com) by alpha.arachsys.com with esmtpa (Exim 4.52) id 1L4v6N-0001hc-Ug; Tue, 25 Nov 2008 10:25:04 +0000 Received: from chris by miranda.arachsys.com with local (Exim 4.52) id 1L4v6M-0002Dl-SC; Tue, 25 Nov 2008 10:25:02 +0000 Date: Tue, 25 Nov 2008 10:25:02 +0000 From: Chris Webb To: qemu-devel@nongnu.org, kvm@vger.kernel.org Cc: Thiemo Seufer Subject: [PATCH v2] Fix off-by-one bug limiting VNC passwords to 7 chars Message-ID: <20081125102502.GJ2380@arachsys.com> References: <20081123113147.GA12832@arachsys.com> <20081123123101.GC17042@networkno.de> <20081125100935.GI2380@arachsys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081125100935.GI2380@arachsys.com> User-Agent: Mutt/1.5.18 (2008-05-17) Fix off-by-one bug limiting VNC passwords to 7 characters instead of 8 monitor_readline expects buf_size to include the terminating \0, but do_change_vnc in monitor.c calls it as though it doesn't. The other site where monitor_readline reads a password (in vl.c) passes the buffer length correctly. Signed-off-by: Chris Webb --- monitor.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/monitor.c b/monitor.c index 22360fc..a252838 100644 --- a/monitor.c +++ b/monitor.c @@ -433,8 +433,7 @@ static void do_change_vnc(const char *target) if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) { char password[9]; - monitor_readline("Password: ", 1, password, sizeof(password)-1); - password[sizeof(password)-1] = '\0'; + monitor_readline("Password: ", 1, password, sizeof(password)); if (vnc_display_password(NULL, password) < 0) term_printf("could not set VNC server password\n"); } else { --iFRdW5/EC4oqxDHL Content-Type: message/rfc822 Content-Disposition: inline Return-path: Envelope-to: chris+sent@arachsys.com Received: from arachsys.demon.co.uk ([83.104.159.199] helo=miranda.arachsys.com) by alpha.arachsys.com with esmtpa (Exim 4.52) id 1L4v82-0001vY-9D; Tue, 25 Nov 2008 10:26:46 +0000 Received: from chris by miranda.arachsys.com with local (Exim 4.52) id 1L4v82-0002E2-2Y; Tue, 25 Nov 2008 10:26:46 +0000 Date: Tue, 25 Nov 2008 10:26:46 +0000 From: Chris Webb To: qemu-devel@nongnu.org, kvm@vger.kernel.org Cc: Thiemo Seufer Subject: [PATCH v2] Accept password as an argument to 'change vnc password' Message-ID: <20081125102646.GK2380@arachsys.com> References: <20081123113147.GA12832@arachsys.com> <20081123123101.GC17042@networkno.de> <20081125100935.GI2380@arachsys.com> <20081125102502.GJ2380@arachsys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081125102502.GJ2380@arachsys.com> User-Agent: Mutt/1.5.18 (2008-05-17) Accept password as an argument to 'change vnc password' monitor command This allows easier use of the change vnc password monitor command from management scripts, without having to implement expect(1)-like behaviour. Signed-off-by: Chris Webb --- monitor.c | 14 +++++++++----- qemu-doc.texi | 8 ++++---- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/monitor.c b/monitor.c index a252838..f6a2783 100644 --- a/monitor.c +++ b/monitor.c @@ -428,12 +428,16 @@ static void do_change_block(const char *device, const char *filename, const char qemu_key_check(bs, filename); } -static void do_change_vnc(const char *target) +static void do_change_vnc(const char *target, const char *arg) { if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) { char password[9]; - monitor_readline("Password: ", 1, password, sizeof(password)); + if (arg) { + strncpy(password, arg, sizeof(password)); + password[sizeof(password) - 1] = '\0'; + } else + monitor_readline("Password: ", 1, password, sizeof(password)); if (vnc_display_password(NULL, password) < 0) term_printf("could not set VNC server password\n"); } else { @@ -442,12 +446,12 @@ static void do_change_vnc(const char *target) } } -static void do_change(const char *device, const char *target, const char *fmt) +static void do_change(const char *device, const char *target, const char *arg) { if (strcmp(device, "vnc") == 0) { - do_change_vnc(target); + do_change_vnc(target, arg); } else { - do_change_block(device, target, fmt); + do_change_block(device, target, arg); } } diff --git a/qemu-doc.texi b/qemu-doc.texi index 1735d92..ca3b181 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -1233,11 +1233,11 @@ and @var{options} are described at @ref{sec_invocation}. eg (qemu) change vnc localhost:1 @end example -@item change vnc password +@item change vnc password [@var{password}] -Change the password associated with the VNC server. The monitor will prompt for -the new password to be entered. VNC passwords are only significant upto 8 letters. -eg. +Change the password associated with the VNC server. If the new password is not +supplied, the monitor will prompt for it to be entered. VNC passwords are only +significant up to 8 letters. eg @example (qemu) change vnc password --iFRdW5/EC4oqxDHL--