diff options
Diffstat (limited to 'contrib/lukemftpd/src/logwtmp.c')
| -rw-r--r-- | contrib/lukemftpd/src/logwtmp.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/contrib/lukemftpd/src/logwtmp.c b/contrib/lukemftpd/src/logwtmp.c new file mode 100644 index 0000000..b7f2925 --- /dev/null +++ b/contrib/lukemftpd/src/logwtmp.c @@ -0,0 +1,65 @@ +/* $NetBSD: logwtmp.c,v 1.16 2001/02/04 22:04:12 christos Exp $ */ + +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include "lukemftpd.h" + +#include "extern.h" + +static int fd = -1; + +/* + * Modified version of logwtmp that holds wtmp file open + * after first call, for use with ftp (which may chroot + * after login, but before logout). + */ +void +logwtmp(const char *line, const char *name, const char *host) +{ + struct utmp ut; + struct stat buf; + + if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) < 0) + return; + if (fstat(fd, &buf) == 0) { + (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); + (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); + (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); + (void)time(&ut.ut_time); + if (write(fd, (char *)&ut, sizeof(struct utmp)) != + sizeof(struct utmp)) + (void)ftruncate(fd, buf.st_size); + } +} |
