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Daniel P. Berrangé 627ebec208 ui: correctly advance output buffer when writing SASL data 
In this previous commit:

  commit 8f61f1c5a6
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Mon Dec 18 19:12:20 2017 +0000

    ui: track how much decoded data we consumed when doing SASL encoding

I attempted to fix a flaw with tracking how much data had actually been
processed when encoding with SASL. With that flaw, the VNC server could
mistakenly discard queued data that had not been sent.

The fix was not quite right though, because it merely decremented the
vs->output.offset value. This is effectively discarding data from the
end of the pending output buffer. We actually need to discard data from
the start of the pending output buffer. We also want to free memory that
is no longer required. The correct way to handle this is to use the
buffer_advance() helper method instead of directly manipulating the
offset value.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 20180201155841.27509-1-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-02-02 07:48:18 +01:00
..
keycodemapdb@10739aa260 ui: pull in latest keycodemapdb 2017-10-23 10:50:02 +02:00
shader opengl: add flipping vertex shader 2017-10-17 10:25:42 +02:00
cocoa.m cocoa.m: Fix scroll wheel support 2018-01-18 10:09:34 +00:00
console-gl.c ui: use QEMU_IS_ALIGNED macro 2017-11-10 14:27:29 +01:00
console.c ui: fix dcl unregister 2017-11-10 11:06:43 +01:00
curses_keys.h ui: add next and prior keysyms 2017-07-27 14:23:09 +02:00
curses.c console: purge curses bits from console.h 2017-09-29 10:36:33 +02:00
cursor_hidden.xpm ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
cursor_left_ptr.xpm ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
cursor.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
egl-context.c egl: explicitly ask for core context 2017-05-12 12:02:48 +02:00
egl-headless.c egl-headless: add dmabuf support 2017-10-17 10:25:42 +02:00
egl-helpers.c egl-helpers: add egl_texture_blit and egl_texture_blend 2017-10-17 10:25:42 +02:00
gtk-egl.c opengl: move shader init from console-gl.c to shader.c 2017-10-17 10:25:42 +02:00
gtk-gl-area.c ui: opengl updates for dma-buf support. 2017-10-19 12:09:53 +01:00
gtk.c ui: ignore hardware keycode 255 on win32 2018-01-25 15:02:00 +01:00
input-keymap.c ui: fix alphabetical ordering of keymaps 2018-01-29 09:35:43 +01:00
input-legacy.c ui: fix crash with sendkey and raw key numbers 2017-10-23 10:50:02 +02:00
input-linux.c ui: move qemu_input_linux_to_qcode() 2017-07-27 14:23:09 +02:00
input.c input: fix memory leak 2018-01-12 14:20:39 +01:00
keymaps.c General warn report fixups 2017-09-19 14:09:34 +02:00
keymaps.h ps2: fix sending of PAUSE/BREAK scancodes 2017-07-27 14:24:05 +02:00
Makefile.objs ui: convert GTK and SDL1 frontends to keycodemapdb 2018-01-25 15:02:00 +01:00
qemu-pixman.c pixman: drop submodule 2017-09-13 10:15:43 +02:00
qemu-x509.h ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
sdl2-2d.c SDL2: add bgrx pixel format 2016-06-03 08:23:26 +02:00
sdl2-gl.c opengl: move shader init from console-gl.c to shader.c 2017-10-17 10:25:42 +02:00
sdl2-input.c ui: convert the SDL2 frontend to keycodemapdb 2018-01-25 15:02:00 +01:00
sdl2.c sdl: reorganize -no-frame support 2018-01-25 15:22:28 +01:00
sdl_keysym.h ui/sdl2 : initial port to SDL 2.0 (v2.0) 2014-03-05 09:52:05 +01:00
sdl_zoom_template.h maint: Fix macros with broken 'do/while(0); ' usage 2018-01-16 14:54:52 +01:00
sdl_zoom.c all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
sdl_zoom.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
sdl.c ui: fix mixup between qnum and qcode in SDL1 key handling 2018-02-02 07:47:16 +01:00
shader.c opengl: add flipping vertex shader 2017-10-17 10:25:42 +02:00
spice-core.c spice: remove unused timer list 2018-01-12 14:35:58 +01:00
spice-display.c Replace all occurances of __FUNCTION__ with __func__ 2018-01-22 09:46:18 +01:00
spice-input.c ui: correctly detect spice PAUSE scancode sequence 2017-07-28 12:35:40 +02:00
trace-events ui: convert GTK and SDL1 frontends to keycodemapdb 2018-01-25 15:02:00 +01:00
vgafont.h ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
vnc_keysym.h ui: add next and prior keysyms 2017-07-27 14:23:09 +02:00
vnc-auth-sasl.c ui: correctly advance output buffer when writing SASL data 2018-02-02 07:48:18 +01:00
vnc-auth-sasl.h ui: mix misleading comments & return types of VNC I/O helper methods 2018-01-12 13:48:54 +01:00
vnc-auth-vencrypt.c ui: Always remove an old VNC channel watch before adding a new one 2017-10-04 13:21:53 +01:00
vnc-auth-vencrypt.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
vnc-enc-hextile-template.h pixman/vnc: use pixman images in vnc. 2012-11-01 14:00:04 +01:00
vnc-enc-hextile.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-tight.c vnc: use DIV_ROUND_UP 2017-08-31 12:29:07 +02:00
vnc-enc-tight.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-enc-zlib.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zrle-template.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zrle.c vnc: simple clean up 2017-05-12 12:34:31 +02:00
vnc-enc-zrle.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-enc-zywrle-template.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zywrle.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-jobs.c ui: fix VNC client throttling when forced update is requested 2018-01-12 13:48:54 +01:00
vnc-jobs.h ui/vnc: Drop unused vnc_has_job() and vnc_jobs_clear() 2017-02-08 14:59:36 +01:00
vnc-palette.c all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
vnc-palette.h all: Clean up includes 2016-02-23 12:43:05 +00:00
vnc-ws.c ui: Always remove an old VNC channel watch before adding a new one 2017-10-04 13:21:53 +01:00
vnc-ws.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
vnc.c ui: convert VNC server to QIONetListener 2018-02-02 07:47:39 +01:00
vnc.h ui: convert VNC server to QIONetListener 2018-02-02 07:47:39 +01:00
x_keymap.c ui: convert GTK and SDL1 frontends to keycodemapdb 2018-01-25 15:02:00 +01:00
x_keymap.h ui: convert GTK and SDL1 frontends to keycodemapdb 2018-01-25 15:02:00 +01:00