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/*
* utmpdump Simple program to dump UTMP and WTMP files in
* raw format, so they can be examined.
*
* Version: @(#)utmpdump.c 13-Aug-1996 1.00 miquels@cistron.nl
*
* This file is part of the sysvinit suite,
* Copyright 1991-1996 Miquel van Smoorenburg.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <stdio.h>
#include <utmp.h>
#include <time.h>
void dump(fp)
FILE *fp;
{
struct utmp ut;
int f;
time_t tm;
while (fread(&ut, sizeof(struct utmp), 1, fp) == 1) {
for(f = 0; f < 12; f++) if (ut.ut_line[f] == ' ') ut.ut_line[f] = '_';
for(f = 0; f < 8; f++) if (ut.ut_name[f] == ' ') ut.ut_name[f] = '_';
tm = ut.ut_time;
printf("[%d] [%05d] [%-4.4s] [%-8.8s] [%-12.12s] [%-15.15s]\n",
ut.ut_type, ut.ut_pid, ut.ut_id, ut.ut_user,
ut.ut_line, 4 + ctime(&tm));
}
}
int main(argc, argv)
int argc;
char **argv;
{
int f;
FILE *fp;
if (argc < 2) {
argc = 2;
argv[1] = UTMP_FILE;
}
for(f = 1; f < argc; f++) {
if (strcmp(argv[f], "-") == 0) {
printf("Utmp dump of stdin\n");
dump(stdin);
} else if ((fp = fopen(argv[f], "r")) != NULL) {
printf("Utmp dump of %s\n", argv[f]);
dump(fp);
fclose(fp);
} else
perror(argv[f]);
}
return(0);
}