1 /* vi: set sw=4 ts=4: */
3 * public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
6 * Takes utmp formated file on stdin and dumps it's contents
7 * out in colon delimited fields. Easy to 'cut' for shell based
8 * versions of 'who', 'last', etc. IP Addr is output in hex,
9 * little endian on x86.
11 * Modified to support all sorts of libcs by
12 * Erik Andersen <andersen@lineo.com>
15 #include <sys/types.h>
23 #define BB_DECLARE_EXTERN
24 #define bb_need_io_error
27 extern int dutmp_main(int argc, char **argv)
35 } else if (*argv[1] == '-' ) {
38 file = open(argv[1], O_RDONLY);
40 perror_msg_and_die(io_error, argv[1]);
44 /* Kludge around the fact that the binary format for utmp has changed. */
45 #if __GNU_LIBRARY__ < 5
47 while (read(file, (void*)&ut, sizeof(struct utmp))) {
48 printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
49 ut.ut_type, ut.ut_pid, ut.ut_line,
50 ut.ut_id, ut.ut_user, ut.ut_host,
55 /* Glibc, uClibc, etc */
56 while (read(file, (void*)&ut, sizeof(struct utmp))) {
57 printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
58 ut.ut_type, ut.ut_pid, ut.ut_line,
59 ut.ut_id, ut.ut_user, ut.ut_host,
60 ut.ut_exit.e_termination, ut.ut_exit.e_exit,
62 ut.ut_tv.tv_sec, ut.ut_tv.tv_usec,