diff options
author | Paul Fox <pgf@brightstareng.com> | 2005-08-01 22:12:30 +0400 |
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committer | Paul Fox <pgf@brightstareng.com> | 2005-08-01 22:12:30 +0400 |
commit | fc2256a6ca7f943d671edaceac1ed1dfe3d1751c (patch) | |
tree | bd9d3d8d3ac6ad21dbf31c7a40387d1a13f084a8 /console-tools/setconsole.c | |
parent | 41a72ecd1936bc0b4ae75c723c88129bb01928ff (diff) |
applying patch for bug 72:
0000072: Add applet to redirect console output via ioctl(..., TIOCCONS)
applet name changed to setconsole, since suse has a very similar
utility. better to treat differences as bugs than invent a new command.
Diffstat (limited to 'console-tools/setconsole.c')
-rw-r--r-- | console-tools/setconsole.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/console-tools/setconsole.c b/console-tools/setconsole.c new file mode 100644 index 000000000..53ff1ad1e --- /dev/null +++ b/console-tools/setconsole.c @@ -0,0 +1,74 @@ +/* vi: set sw=4 ts=4: */ +/* + * setconsole.c - redirect system console output + * + * Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <sys/ioctl.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <fcntl.h> +#include <stdio.h> +#include <getopt.h> + +#include "busybox.h" + +static const struct option setconsole_long_options[] = { + { "reset", 0, NULL, 'r' }, + { 0, 0, 0, 0 } +}; + +#define OPT_SETCONS_RESET 1 + +int setconsole_main(int argc, char **argv) +{ + int con; + unsigned long flags; + const char *device = "/dev/tty"; + + bb_applet_long_options = setconsole_long_options; + flags = bb_getopt_ulflags(argc, argv, "r"); + + if (argc - optind > 1) + bb_show_usage(); + + if (argc - optind == 1) { + if (flags & OPT_SETCONS_RESET) + bb_show_usage(); + device = argv[optind]; + } else { + if (flags & OPT_SETCONS_RESET) + device = "/dev/console"; + } + + if (-1 == (con = open(device, O_RDONLY))) { + bb_perror_msg_and_die("open %s", device); + } + if (-1 == ioctl(con, TIOCCONS)) { + bb_perror_msg_and_die("ioctl TIOCCONS"); + } + return EXIT_SUCCESS; +} + +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ |