198 lines
6.4 KiB
C
198 lines
6.4 KiB
C
/* logwtmp.c: Put an entry in the wtmp file.
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%%% portions-copyright-cmetz-96
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Portions of this software are Copyright 1996-1999 by Craig Metz, All Rights
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Reserved. The Inner Net License Version 2 applies to these portions of
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the software.
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You should have received a copy of the license with this software. If
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you didn't get a copy, you may request one from <license@inner.net>.
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Portions of this software are Copyright 1995 by Randall Atkinson and Dan
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McDonald, All Rights Reserved. All Rights under this copyright are assigned
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to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
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License Agreement applies to this software.
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History:
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Modified by cmetz for OPIE 2.4. Set process to dead if name is null.
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Added support for ut_id and ut_syslen.
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Modified by cmetz for OPIE 2.32. Don't leave line=NULL, skip
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past /dev/ in line. Fill in ut_host on systems with UTMPX and
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ut_host.
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Modified by cmetz for OPIE 2.31. Move wtmp log functions here, to
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improve portability. Added DISABLE_WTMP.
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Modified by cmetz for OPIE 2.22. Call gettimeofday() properly.
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Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
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Ifdef around some headers. Added file close hook.
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Modified at NRL for OPIE 2.1. Set process type for HPUX.
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Modified at NRL for OPIE 2.0.
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Originally from BSD.
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*/
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/*
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* Copyright (c) 1988 The Regents of the University of California.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "opie_cfg.h"
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#include <sys/types.h>
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#if HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif /* HAVE_SYS_TIME_H */
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <utmp.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#if HAVE_STRING_H
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#include <string.h>
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#endif /* HAVE_STRING_H */
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#include "opie.h"
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static int fd = -1;
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#if DOUTMPX
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static int fdx = -1;
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#include <utmpx.h>
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#endif /* DOUTMPX */
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#ifndef _PATH_WTMP
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#ifdef WTMP_FILE
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#define _PATH_WTMP WTMP_FILE
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#else /* WTMP_FILE */
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#ifdef PATH_WTMP_AC
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#define _PATH_WTMP PATH_WTMP_AC
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#endif /* PATH_WTMP_AC */
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#endif /* WTMP_FILE */
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#endif /* _PATH_WTMP */
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#ifndef _PATH_WTMPX
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#ifdef WTMPX_FILE
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#define _PATH_WTMPX WTMPX_FILE
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#else /* WTMPX_FILE */
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#ifdef PATH_WTMPX_AC
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#define _PATH_WTMPX PATH_WTMPX_AC
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#endif /* PATH_WTMPX_AC */
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#endif /* WTMPX_FILE */
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#endif /* _PATH_WTMPX */
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/*
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* Modified version of logwtmp that holds wtmp file open
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* after first call, for use with ftp (which may chroot
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* after login, but before logout).
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*/
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VOIDRET opielogwtmp FUNCTION((line, name, host), char *line AND char *name AND char *host AND char *id)
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{
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#if !DISABLE_WTMP
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struct utmp ut;
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#if DOUTMPX && defined(_PATH_WTMPX)
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struct utmpx utx;
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#endif /* DOUTMPX && defined(_PATH_WTMPX) */
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struct stat buf;
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memset(&ut, 0, sizeof(struct utmp));
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if (!line) {
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close(fd);
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#if DOUTMPX && defined(_PATH_WTMPX)
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close(fdx);
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#endif /* DOUTMPX && defined(_PATH_WTMPX) */
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line = "";
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} else
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if (!strncmp(line, "/dev/", 5))
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line += 5;
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if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY | O_APPEND, 0)) < 0)
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return;
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if (fstat(fd, &buf) == 0) {
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#if HAVE_UT_TYPE && defined(USER_PROCESS)
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if (name && *name)
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ut.ut_type = USER_PROCESS;
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else
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ut.ut_type = DEAD_PROCESS;
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#endif /* HAVE_UT_TYPE && defined(USER_PROCESS) */
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#if HAVE_UT_ID
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if (id)
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strncpy(ut.ut_id, id, sizeof(ut.ut_id));
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#endif /* HAVE_UT_ID */
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#if HAVE_UT_PID
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ut.ut_pid = getpid();
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#endif /* HAVE_UT_PID */
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strncpy(ut.ut_line, line, sizeof(ut.ut_line));
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strncpy(ut.ut_name, name, sizeof(ut.ut_name));
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#if HAVE_UT_HOST
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strncpy(ut.ut_host, host, sizeof(ut.ut_host));
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#endif /* HAVE_UT_HOST */
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time(&ut.ut_time);
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if (write(fd, (char *) &ut, sizeof(struct utmp)) !=
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sizeof(struct utmp))
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ftruncate(fd, buf.st_size);
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}
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#if DOUTMPX && defined(_PATH_WTMPX)
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memset(&utx, 0, sizeof(struct utmpx));
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if (fdx < 0 && (fdx = open(_PATH_WTMPX, O_WRONLY | O_APPEND, 0)) < 0)
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return;
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if (fstat(fdx, &buf) == 0) {
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strncpy(utx.ut_line, line, sizeof(utx.ut_line));
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strncpy(utx.ut_name, name, sizeof(utx.ut_name));
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strncpy(utx.ut_host, host, sizeof(utx.ut_host));
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#ifdef USER_PROCESS
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if (name && *name)
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utx.ut_type = USER_PROCESS;
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else
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utx.ut_type = DEAD_PROCESS;
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#endif /* USER_PROCESS */
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if (id)
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strncpy(utx.ut_id, id, sizeof(utx.ut_id));
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utx.ut_pid = getpid();
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#if HAVE_UTX_SYSLEN
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utx.ut_syslen = strlen(utx.ut_host) + 1;
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#endif /* HAVE_UTX_SYSLEN */
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#if HAVE_GETTIMEOFDAY
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#if HAVE_ONE_ARG_GETTIMEOFDAY
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gettimeofday(&utx.ut_tv);
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#else /* HAVE_ONE_ARG_GETTIMEOFDAY */
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gettimeofday(&utx.ut_tv, NULL);
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#endif /* HAVE_ONE_ARG_GETTIMEOFDAY */
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#endif /* HAVE_GETTIMEOFDAY */
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if (write(fdx, (char *) &utx, sizeof(struct utmpx)) != sizeof(struct utmpx))
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ftruncate(fdx, buf.st_size);
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}
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#endif /* DOUTMPX && defined(_PATH_WTMPX) */
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#endif /* !DISABLE_WTMP */
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}
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