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/* vi: set sw=4 ts=4: */
/*
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
*
* dutmp
* Takes utmp formated file on stdin and dumps it's contents
* out in colon delimited fields. Easy to 'cut' for shell based
* versions of 'who', 'last', etc. IP Addr is output in hex,
* little endian on x86.
*
* Modified to support all sort of libcs by
* Erik Andersen <andersen@lineo.com>
*/
#include "internal.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#define BB_DECLARE_EXTERN
#define bb_need_io_error
#include "messages.c"
#include <utmp.h>
static const char dutmp_usage[] = "dutmp [FILE]\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nDump utmp file format (pipe delimited) from FILE\n"
"or stdin to stdout. (i.e. 'dutmp /var/run/utmp')\n"
#endif
;
extern int dutmp_main(int argc, char **argv)
{
int file;
struct utmp ut;
if (argc<2) {
file = fileno(stdin);
} else if (*argv[1] == '-' ) {
usage(dutmp_usage);
} else {
file = open(argv[1], O_RDONLY);
if (file < 0) {
fatalError(io_error, argv[1], strerror(errno));
}
}
while (read(file, (void*)&ut, sizeof(struct utmp))) {
printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
ut.ut_type, ut.ut_pid, ut.ut_line,
ut.ut_id, ut.ut_user, ut.ut_host,
ctime(&(ut.ut_time)),
(long)ut.ut_addr);
}
exit(TRUE);
}
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