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/*-
* 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 <sys/endian.h>
#include <sys/param.h>
#include <err.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <utmpx.h>
#include "../../lib/libc/gen/utxdb.h"
struct outmp {
char ut_line[8];
char ut_user[16];
char ut_host[16];
int32_t ut_time;
};
static void
usage(void)
{
fprintf(stderr, "usage: wtmpcvt input output\n");
exit(1);
}
static void
outmp_to_futx(const struct outmp *ui, struct futx *uo)
{
memset(uo, 0, sizeof *uo);
#define COPY_STRING(field) do { \
strncpy(uo->fu_ ## field, ui->ut_ ## field, \
MIN(sizeof uo->fu_ ## field, sizeof ui->ut_ ## field)); \
} while (0)
#define COPY_LINE_TO_ID() do { \
strncpy(uo->fu_id, ui->ut_line, \
MIN(sizeof uo->fu_id, sizeof ui->ut_line)); \
} while (0)
#define MATCH(field, value) (strncmp(ui->ut_ ## field, (value), \
sizeof(ui->ut_ ## field)) == 0)
if (MATCH(user, "reboot") && MATCH(line, "~"))
uo->fu_type = BOOT_TIME;
else if (MATCH(user, "date") && MATCH(line, "|"))
uo->fu_type = OLD_TIME;
else if (MATCH(user, "date") && MATCH(line, "{"))
uo->fu_type = NEW_TIME;
else if (MATCH(user, "shutdown") && MATCH(line, "~"))
uo->fu_type = SHUTDOWN_TIME;
else if (MATCH(user, "") && MATCH(host, "") && !MATCH(line, "")) {
uo->fu_type = DEAD_PROCESS;
COPY_LINE_TO_ID();
} else if (!MATCH(user, "") && !MATCH(line, "") && ui->ut_time != 0) {
uo->fu_type = USER_PROCESS;
COPY_STRING(user);
COPY_STRING(line);
COPY_STRING(host);
COPY_LINE_TO_ID();
} else {
uo->fu_type = EMPTY;
return;
}
#undef COPY_STRING
#undef COPY_LINE_TO_ID
#undef MATCH
/* Timestamp conversion. XXX: Assumes host byte order! */
uo->fu_tv = htobe64((uint64_t)ui->ut_time * 1000000);
}
int
main(int argc, char *argv[])
{
FILE *in, *out;
struct outmp ui;
struct futx uo;
size_t l;
uint16_t lo;
if (argc != 3)
usage();
/* Open files. */
in = fopen(argv[1], "r");
if (in == NULL)
err(1, argv[1]);
out = fopen(argv[2], "w");
if (out == NULL)
err(1, argv[2]);
/* Process entries. */
while (fread(&ui, sizeof ui, 1, in) == 1) {
outmp_to_futx(&ui, &uo);
if (uo.fu_type == EMPTY)
continue;
/* Write new entry to output file. */
for (l = sizeof uo; l > 0 &&
((const char *)&uo)[l - 1] == '\0'; l--);
lo = htobe16(l);
fwrite(&lo, sizeof lo, 1, out);
fwrite(&uo, l, 1, out);
}
fclose(in);
fclose(out);
return (0);
}
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