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https://github.com/troglobit/finit.git
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Joachim Nilsson
f8def336d4
This patch fixes the ordering of UTMP events. The first event that is expected in /var/run/utmp is reboot, next is the runlevel change to the configured runlevel, e.g. from S --> 2. Let the bootmisc plugin handle this, it knows when /var/run/utmp has been created and is writable. It is not the eact boot time, but close enough for most usees. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* UTMP API
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*
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* Copyright (c) 2016 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <time.h>
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#include <utmp.h>
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#include <sys/utsname.h>
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#include <lite/lite.h>
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int utmp_set(int type, int pid, char *user, char *line, char *id)
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{
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int result;
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struct utmp ut;
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struct utsname uts;
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switch (type) {
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case RUN_LVL:
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case BOOT_TIME:
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line = "~";
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id = "~~";
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break;
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default:
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break;
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}
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memset(&ut, 0, sizeof(ut));
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ut.ut_type = type;
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ut.ut_pid = pid;
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strlcpy(ut.ut_user, user, sizeof(ut.ut_user));
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strlcpy(ut.ut_line, line, sizeof(ut.ut_line));
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strlcpy(ut.ut_id, id, sizeof(ut.ut_id));
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if (!uname(&uts))
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strncpy(ut.ut_host, uts.release, sizeof(ut.ut_host));
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ut.ut_tv.tv_sec = time(NULL);
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setutent();
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while (getutent())
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;
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result = pututline(&ut) ? 0 : 1;;
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endutent();
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return result;
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}
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static int encode(int lvl)
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{
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if (!lvl) return 0;
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return lvl + '0';
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}
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int utmp_set_runlevel(int pre, int now)
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{
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return utmp_set(RUN_LVL, (encode(pre) << 8) | (encode(now) & 0xFF), "runlevel", NULL, NULL);
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}
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int utmp_set_boot(void)
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{
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return utmp_set(BOOT_TIME, 0, "reboot", NULL, NULL);
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}
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int utmp_set_halt(void)
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{
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return utmp_set(RUN_LVL, 0, "shutdown", NULL, NULL);
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}
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int utmp_show(char *file)
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{
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time_t sec;
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struct utmp *ut;
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struct tm *sectm;
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int pid;
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char id[sizeof(ut->ut_id)], user[sizeof(ut->ut_user)], when[80];
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printf("%s =============================================================================================\n", file);
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utmpname(file);
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setutent();
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while ((ut = getutent())) {
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memset(id, 0, sizeof(id));
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strncpy(id, ut->ut_id, sizeof(ut->ut_id));
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memset(user, 0, sizeof(user));
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strncpy(user, ut->ut_user, sizeof(ut->ut_user));
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sec = ut->ut_tv.tv_sec;
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sectm = localtime(&sec);
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strftime(when, sizeof(when), "%F %T", sectm);
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pid = ut->ut_pid;
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printf("[%d] [%05d] [%-4.4s] [%-8.8s] [%-12.12s] [%-20.20s] [%-15.15s] [%-19.19s]\n",
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ut->ut_type, pid, id, user, ut->ut_line, ut->ut_host, "0.0.0.0", when);
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}
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endutent();
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return 0;
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}
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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