101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
/*
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* dmesg.c - barebox logbuffer handling
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*
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* Copyright (c) 2014 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <malloc.h>
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#include <command.h>
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#include <globalvar.h>
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#include <environment.h>
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#include <getopt.h>
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#include <clock.h>
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static int do_dmesg(int argc, char *argv[])
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{
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int opt, i;
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int delete_buf = 0, emit = 0;
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unsigned flags = 0;
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while ((opt = getopt(argc, argv, "ctde")) > 0) {
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switch (opt) {
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case 'c':
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delete_buf = 1;
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break;
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case 't':
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flags |= BAREBOX_LOG_PRINT_TIME;
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break;
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case 'd':
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flags |= BAREBOX_LOG_DIFF_TIME;
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break;
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case 'e':
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emit = 1;
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break;
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default:
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return COMMAND_ERROR_USAGE;
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}
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}
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if (emit) {
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char *buf;
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int len = 0;
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for (i = optind; i < argc; i++)
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len += strlen(argv[i]) + 1;
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buf = malloc(len + 2);
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if (!buf)
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return -ENOMEM;
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len = 0;
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for (i = optind; i < argc; i++)
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len += sprintf(buf + len, "%s ", argv[i]);
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*(buf + len) = '\n';
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*(buf + len + 1) = 0;
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pr_info("%s", buf);
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free(buf);
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return 0;
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}
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log_print(flags);
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if (delete_buf)
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log_clean(10);
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return 0;
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}
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BAREBOX_CMD_HELP_START(dmesg)
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BAREBOX_CMD_HELP_TEXT("Options:")
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BAREBOX_CMD_HELP_OPT ("-c", "Delete messages after printing them")
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BAREBOX_CMD_HELP_OPT ("-d", "Show a time delta to the last message")
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BAREBOX_CMD_HELP_OPT ("-e <msg>", "Emit a log message")
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BAREBOX_CMD_HELP_OPT ("-t", "Show timestamp informations")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(dmesg)
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.cmd = do_dmesg,
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BAREBOX_CMD_DESC("Print or control log messages")
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BAREBOX_CMD_OPTS("[-cdet]")
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BAREBOX_CMD_GROUP(CMD_GRP_INFO)
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BAREBOX_CMD_HELP(cmd_dmesg_help)
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BAREBOX_CMD_END
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