From 89f33482f56ca620e10f7cdbc015d62510cab7cf Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Wed, 29 Oct 2014 18:37:59 +0100 Subject: add log-login-btmp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/log-login-btmp.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 src/log-login-btmp.c (limited to 'src/log-login-btmp.c') diff --git a/src/log-login-btmp.c b/src/log-login-btmp.c new file mode 100644 index 0000000..35b2b31 --- /dev/null +++ b/src/log-login-btmp.c @@ -0,0 +1,84 @@ +/** + * cerberus-logging – Log-in logging extension for cerberus + * + * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) + * + * 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 3 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, see . + */ +#include "common.h" + +#include + + + +#define X(A) static const char* A = NULL; + LIST_ARGUMENTS +#undef X + + +static int log_action(void); + + +int main(int argc, char** argv) +{ + int i; + + for (i = 1; i < argc; i++) + { +#define X(A) if (strstr(argv[i], "--" #A "=")) A = strchr(argv[i], '=') + 1; + LIST_ARGUMENTS +#undef X + } + + if (!streq(action, "failed")) return 0; + if (NULL == username) return 1; + if (NULL == ttyname) return 1; + if (NULL == pid) return 1; + + return -log_action(); +} + + +static int log_action(void) +{ + struct utmp ut; + memset(&ut, 0, sizeof(struct utmp)); + + ut.ut_type = LOGIN_PROCESS; + ut.ut_pid = (pid_t)atoll(pid); + xstrcpy(ut.ut_user, username); + xstrcpy(ut.ut_host, hostname); + xstrcpy(ut.ut_line, ttyname); + xstrcpy(ut.ut_id, first_digit(ttyname)); + xmemcpy(ut.ut_addr_v6, get_hostaddress(hostname)); + +#ifdef _HAVE_UT_TV + { + struct timeval tv; + gettimeofday(&tv, NULL); + ut.ut_tv.tv_sec = tv.tv_sec; + ut.ut_tv.tv_usec = tv.tv_usec; + } +#else + { + time_t t; + time(&t); + ut.ut_time = t; + } +#endif + + updwtmp(LOGDIR "/btmp", &ut); + return 0; +} + -- cgit v1.2.3-70-g09d2