c7302b61ef
Files with no license use the default 3-clauses BSD license. The copyright were mostly not recorded; they were updated according to the Changelog. "Julianne Frances Haugh and contributors" changed to "copyright holders and contributors".
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*
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* Copyright (c) 1989 - 1992, Julianne Frances Haugh
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* Copyright (c) 1996 - 2000, Marek Michałkiewicz
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* Copyright (c) 2001 - 2005, Tomasz Kłoczko
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#ident "$Id$"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <time.h>
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#include "prototypes.h"
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#include "defines.h"
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#include "getdef.h"
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/*
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* sulog - log a SU command execution result
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*/
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void sulog (const char *tty, int success, const char *oldname, const char *name)
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{
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char *sulog_file;
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time_t now;
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struct tm *tm;
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FILE *fp;
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mode_t oldmask;
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gid_t oldgid = 0;
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if (success) {
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SYSLOG ((LOG_INFO,
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"Successful su for %s by %s",name,oldname));
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} else {
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SYSLOG ((LOG_NOTICE,
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"FAILED su for %s by %s",name,oldname));
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}
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if ((sulog_file = getdef_str ("SULOG_FILE")) == (char *) 0)
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return;
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oldgid = getgid ();
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oldmask = umask (077);
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/* Switch to group root to avoid creating the sulog file with
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* the wrong group ownership. */
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if ((oldgid != 0) && (setgid (0) != 0)) {
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SYSLOG ((LOG_INFO,
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"su session not logged to %s", sulog_file));
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/* Continue, but do not switch back to oldgid later */
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oldgid = 0;
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}
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fp = fopen (sulog_file, "a+");
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umask (oldmask);
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if ((oldgid != 0) && (setgid (oldgid) != 0)) {
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perror ("setgid");
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SYSLOG ((LOG_ERR,
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"can't switch back to group `%d' in sulog",
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oldgid));
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/* Do not return if the group permission were raised. */
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exit (1);
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}
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if (fp == (FILE *) 0)
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return; /* can't open or create logfile */
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time (&now);
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tm = localtime (&now);
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fprintf (fp, "SU %.02d/%.02d %.02d:%.02d %c %s %s-%s\n",
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tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min,
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success ? '+' : '-', tty, oldname, name);
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fflush (fp);
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fclose (fp);
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}
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