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6ca409e0e4
trylink: explain how to modify link and drastically decrease amount of padding (unfortunately, needs hand editing ATM). *: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts size saving: 0.5k
47 lines
1008 B
C
47 lines
1008 B
C
/* vi: set sw=4 ts=4: */
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/*
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* setconsole.c - redirect system console output
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*
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* Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include <getopt.h>
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#include "libbb.h"
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#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
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static const char setconsole_longopts[] ALIGN1 =
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"reset\0" No_argument "r"
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;
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#endif
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#define OPT_SETCONS_RESET 1
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int setconsole_main(int argc, char **argv);
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int setconsole_main(int argc, char **argv)
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{
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unsigned long flags;
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const char *device = CURRENT_TTY;
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#if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
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applet_long_options = setconsole_longopts;
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#endif
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flags = getopt32(argc, argv, "r");
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if (argc - optind > 1)
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bb_show_usage();
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if (argc - optind == 1) {
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if (flags & OPT_SETCONS_RESET)
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bb_show_usage();
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device = argv[optind];
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} else {
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if (flags & OPT_SETCONS_RESET)
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device = DEV_CONSOLE;
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}
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xioctl(xopen(device, O_RDONLY), TIOCCONS, NULL);
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return EXIT_SUCCESS;
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}
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