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68 lines
2.1 KiB
C
68 lines
2.1 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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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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