Accepting request 4681 from home:rawang:branches:home:decriptor:a11y
Copy from IBS home:gabrielburt:branches:SUSE:Factory:Head/kbd based on submit request 4681 from user gabrielburt OBS-URL: https://build.opensuse.org/request/show/4681 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/kbd?expand=0&rev=34
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kbd-1.12-chvt-userwait.patch
Normal file
141
kbd-1.12-chvt-userwait.patch
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@ -0,0 +1,141 @@
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chvt: add --userwait option
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From: Daniel Drake <d.drake@mmm.com>
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At http://bugs.gentoo.org/159729 we see chvt hanging in some scenario's. As
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the solution to this is not immediately obvious, add a --userwait option
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which repeatedly tries changing the terminal until the change has taken place.
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Index: kbd-1.14.1/man/man1/chvt.1
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===================================================================
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--- kbd-1.14.1.orig/man/man1/chvt.1
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+++ kbd-1.14.1/man/man1/chvt.1
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@@ -4,6 +4,9 @@
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chvt \- change foreground virtual terminal
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.SH SYNOPSIS
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.B chvt
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+[
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+.B --userwait
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+]
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.I N
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.SH DESCRIPTION
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The command
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@@ -21,3 +24,10 @@ The key combination
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(with
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.I N
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in the range 1-12) usually has a similar effect.
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+.LP
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+The
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+.B --userwait
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+option causes the system to loop in userspace waiting for the new terminal
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+to become active, as opposed to the kernel-side
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+.I VT_WAITACTIVE
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+ioctl.
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Index: kbd-1.14.1/src/chvt.c
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===================================================================
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--- kbd-1.14.1.orig/src/chvt.c
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+++ kbd-1.14.1/src/chvt.c
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@@ -7,13 +7,43 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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+#include <getopt.h>
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+#include <unistd.h>
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#include "getfd.h"
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#include "nls.h"
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#include "version.h"
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+#define USER_WAIT_SLEEP_US 100000
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+#define USER_WAIT_MAX_ITERATIONS 50
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+
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+static int fd;
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+
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+static void chvt(int num)
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+{
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+ if (ioctl(fd,VT_ACTIVATE,num)) {
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+ perror("VT_ACTIVATE");
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+ exit(1);
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+ }
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+}
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+
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+static int fgconsole(void)
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+{
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+ struct vt_stat vtstat;
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+ if (ioctl(fd, VT_GETSTATE, &vtstat)) {
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+ perror("VT_GETSTATE");
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+ exit(1);
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+ }
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+ return vtstat.v_active;
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+}
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+
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int
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main(int argc, char *argv[]) {
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- int fd, num;
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+ int c, num;
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+ int user_wait = 0;
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+ const struct option long_opts[] = {
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+ { "version", no_argument, NULL, 'V' },
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+ { "userwait", no_argument, NULL, 'u' },
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+ };
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set_progname(argv[0]);
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@@ -21,22 +51,46 @@ main(int argc, char *argv[]) {
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bindtextdomain(PACKAGE_NAME, LOCALEDIR);
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textdomain(PACKAGE_NAME);
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- if (argc == 2 && !strcmp(argv[1], "-V"))
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- print_version_and_exit();
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+ while ((c = getopt_long(argc, argv, "Vu", long_opts, NULL)) != -1) {
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+ switch (c) {
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+ case 'V':
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+ print_version_and_exit();
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+ case 'u':
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+ user_wait = 1;
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+ break;
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+ }
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+ }
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- if (argc != 2) {
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- fprintf(stderr, _("usage: chvt N\n"));
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+ if (optind >= argc) {
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+ fprintf(stderr, _("usage: chvt [--userwait] N\n"));
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exit(1);
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}
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+
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fd = getfd(NULL);
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- num = atoi(argv[1]);
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- if (ioctl(fd,VT_ACTIVATE,num)) {
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- perror("chvt: VT_ACTIVATE");
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- exit(1);
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- }
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- if (ioctl(fd,VT_WAITACTIVE,num)) {
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- perror("VT_WAITACTIVE");
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- exit(1);
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+ num = atoi(argv[optind++]);
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+ chvt(num);
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+
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+ if (user_wait) {
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+ int active = 0;
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+ int i;
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+ for (i = 0; i < USER_WAIT_MAX_ITERATIONS; i++) {
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+ if (fgconsole() == num) {
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+ active = 1;
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+ break;
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+ }
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+
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+ chvt(num);
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+ usleep(USER_WAIT_SLEEP_US);
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+ }
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+ if (!active) {
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+ fprintf(stderr, _("VT change timed out\n"));
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+ exit(1);
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+ }
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+ } else {
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+ if (ioctl(fd,VT_WAITACTIVE,num)) {
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+ perror("VT_WAITACTIVE");
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+ exit(1);
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+ }
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}
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exit(0);
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}
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@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Tue Feb 16 11:14:18 PST 2010 - vuntz@opensuse.org
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- Add kbd-1.12-chvt-userwait.patch, taken from Gentoo to add a
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--userwait option to chvt. This can be used to avoid situation
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where chvt can hang forever waiting for the vt switch: the wait
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is done in userspace, and has a timeout of 5 seconds. (bnc#575123)
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-------------------------------------------------------------------
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Thu Feb 4 12:22:49 UTC 2010 - jengelh@medozas.de
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4
kbd.spec
4
kbd.spec
@ -24,7 +24,7 @@ License: GPLv2+
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Group: System/Console
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AutoReqProv: on
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Version: 1.14.1
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Release: 22
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Release: 23
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Summary: Keyboard and Font Utilities
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Source: kbd-%{version}.tar.bz2
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Source1: kbd_fonts.tar.bz2
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@ -53,6 +53,7 @@ Patch9: kbd-1.14.1-setfont-no-cruft.patch
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Patch10: kbd-1.14.1-dumpkeys-C-opt.patch
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Patch11: kbd-1.14.1-defkeymap.patch
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Patch12: kbd-remove-kbio.diff
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Patch13: kbd-1.12-chvt-userwait.patch
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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PreReq: %fillup_prereq %insserv_prereq
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BuildRequires: bison flex
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@ -89,6 +90,7 @@ Authors:
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%patch10
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%patch11 -p1
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%patch -P 12 -p1
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%patch13 -p1
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%build
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for i in `find data/keymaps/mac -type f` ; do
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