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-rw-r--r--lib/libc/gen/pututxline.c263
1 files changed, 0 insertions, 263 deletions
diff --git a/lib/libc/gen/pututxline.c b/lib/libc/gen/pututxline.c
deleted file mode 100644
index ce4dc28..0000000
--- a/lib/libc/gen/pututxline.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*-
- * Copyright (c) 2010 Ed Schouten <ed@FreeBSD.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "namespace.h"
-#include <sys/endian.h>
-#include <sys/stat.h>
-#include <sys/uio.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <utmpx.h>
-#include "utxdb.h"
-#include "un-namespace.h"
-
-static FILE *
-futx_open(const char *file)
-{
- int fd;
- FILE *fp;
- struct stat sb;
-
- fd = _open(file, O_CREAT|O_RDWR|O_EXLOCK, 0644);
- if (fd < 0)
- return (NULL);
-
- /* Safety check: never use broken files. */
- if (_fstat(fd, &sb) != -1 && sb.st_size % sizeof(struct futx) != 0) {
- _close(fd);
- return (NULL);
- }
-
- fp = fdopen(fd, "r+");
- if (fp == NULL) {
- _close(fd);
- return (NULL);
- }
-
- return (fp);
-}
-
-static void
-utx_active_add(const struct futx *fu)
-{
- FILE *fp;
- struct futx fe;
- off_t partial = -1;
-
- /*
- * Register user login sessions. Overwrite entries of sessions
- * that have already been terminated.
- */
- fp = futx_open(_PATH_UTX_ACTIVE);
- if (fp == NULL)
- return;
- while (fread(&fe, sizeof fe, 1, fp) == 1) {
- switch (fe.fu_type) {
- case USER_PROCESS:
- case INIT_PROCESS:
- case LOGIN_PROCESS:
- case DEAD_PROCESS:
- /* Overwrite when ut_id matches. */
- if (memcmp(fu->fu_id, fe.fu_id, sizeof fe.fu_id) == 0) {
- fseeko(fp, -(off_t)sizeof fe, SEEK_CUR);
- goto exact;
- }
- if (fe.fu_type != DEAD_PROCESS)
- break;
- /* FALLTHROUGH */
- default:
- /* Allow us to overwrite unused records. */
- if (partial == -1)
- partial = ftello(fp) - (off_t)sizeof fe;
- break;
- }
- }
-
- /*
- * No exact match found. Use the partial match. If no partial
- * match was found, just append a new record.
- */
- if (partial != -1)
- fseeko(fp, partial, SEEK_SET);
-exact:
- fwrite(fu, sizeof *fu, 1, fp);
- fclose(fp);
-}
-
-static int
-utx_active_remove(struct futx *fu)
-{
- FILE *fp;
- struct futx fe;
-
- /*
- * Remove user login sessions, having the same ut_id.
- */
- fp = futx_open(_PATH_UTX_ACTIVE);
- if (fp == NULL)
- return (0);
- while (fread(&fe, sizeof fe, 1, fp) == 1) {
- switch (fe.fu_type) {
- case USER_PROCESS:
- case INIT_PROCESS:
- case LOGIN_PROCESS:
- if (memcmp(fu->fu_id, fe.fu_id, sizeof fe.fu_id) != 0)
- continue;
-
- /* Terminate session. */
- fseeko(fp, -(off_t)sizeof fe, SEEK_CUR);
- fwrite(fu, sizeof *fu, 1, fp);
- fclose(fp);
- return (0);
- }
- }
-
- fclose(fp);
- return (1);
-}
-
-static void
-utx_active_purge(void)
-{
-
- truncate(_PATH_UTX_ACTIVE, 0);
-}
-
-static void
-utx_lastlogin_add(const struct futx *fu)
-{
- FILE *fp;
- struct futx fe;
-
- /*
- * Write an entry to lastlogin. Overwrite the entry if the
- * current user already has an entry. If not, append a new
- * entry.
- */
- fp = futx_open(_PATH_UTX_LASTLOGIN);
- if (fp == NULL)
- return;
- while (fread(&fe, sizeof fe, 1, fp) == 1) {
- if (strncmp(fu->fu_user, fe.fu_user, sizeof fe.fu_user) != 0)
- continue;
-
- /* Found a previous lastlogin entry for this user. */
- fseeko(fp, -(off_t)sizeof fe, SEEK_CUR);
- break;
- }
- fwrite(fu, sizeof *fu, 1, fp);
- fclose(fp);
-}
-
-static void
-utx_lastlogin_upgrade(void)
-{
- int fd;
- struct stat sb;
-
- fd = _open(_PATH_UTX_LASTLOGIN, O_RDWR, 0644);
- if (fd < 0)
- return;
-
- /*
- * Truncate broken lastlogin files. In the future we should
- * check for older versions of the file format here and try to
- * upgrade it.
- */
- if (_fstat(fd, &sb) != -1 && sb.st_size % sizeof(struct futx) != 0)
- ftruncate(fd, 0);
- _close(fd);
-}
-
-static void
-utx_log_add(const struct futx *fu)
-{
- int fd;
- uint16_t l;
- struct iovec vec[2];
-
- /*
- * Append an entry to the log file. We only need to append
- * records to this file, so to conserve space, trim any trailing
- * zero-bytes. Prepend a length field, indicating the length of
- * the record, excluding the length field itself.
- */
- for (l = sizeof *fu; l > 0 && ((const char *)fu)[l - 1] == '\0'; l--);
- vec[0].iov_base = &l;
- vec[0].iov_len = sizeof l;
- vec[1].iov_base = __DECONST(void *, fu);
- vec[1].iov_len = l;
- l = htobe16(l);
-
- fd = _open(_PATH_UTX_LOG, O_CREAT|O_WRONLY|O_APPEND, 0644);
- if (fd < 0)
- return;
- _writev(fd, vec, 2);
- _close(fd);
-}
-
-struct utmpx *
-pututxline(const struct utmpx *utmpx)
-{
- struct futx fu;
-
- utx_to_futx(utmpx, &fu);
-
- switch (fu.fu_type) {
- case BOOT_TIME:
- case SHUTDOWN_TIME:
- utx_active_purge();
- utx_lastlogin_upgrade();
- break;
- case OLD_TIME:
- case NEW_TIME:
- break;
- case USER_PROCESS:
- utx_active_add(&fu);
- utx_lastlogin_add(&fu);
- break;
-#if 0 /* XXX: Are these records of any use to us? */
- case INIT_PROCESS:
- case LOGIN_PROCESS:
- utx_active_add(&fu);
- break;
-#endif
- case DEAD_PROCESS:
- if (utx_active_remove(&fu) != 0)
- return (NULL);
- break;
- default:
- return (NULL);
- }
-
- utx_log_add(&fu);
- return (futx_to_utx(&fu));
-}
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