diff options
Diffstat (limited to 'login-utils/last.c')
| -rw-r--r-- | login-utils/last.c | 136 |
1 files changed, 73 insertions, 63 deletions
diff --git a/login-utils/last.c b/login-utils/last.c index bc8294978..fa9f8f837 100644 --- a/login-utils/last.c +++ b/login-utils/last.c @@ -201,72 +201,82 @@ wtmp() (void)signal(SIGQUIT, onintr); while (--bl >= 0) { - if (lseek(wfd, (long)(bl * sizeof(buf)), L_SET) == -1 || - (bytes = read(wfd, (char *)buf, sizeof(buf))) == -1) { - fprintf(stderr, "last: %s: ", file); - perror((char *)NULL); - exit(1); - } - for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) { - /* - * if the terminal line is '~', the machine stopped. - * see utmp(5) for more info. - */ - if (!strncmp(bp->ut_line, "~", LMAX)) { - /* everybody just logged out */ - for (T = ttylist; T; T = T->next) - T->logout = -bp->ut_time; - currentout = -bp->ut_time; - crmsg = strncmp(bp->ut_name, "shutdown", NMAX) ? "crash" : "down "; - if (!bp->ut_name[0]) - (void)strcpy(bp->ut_name, "reboot"); - if (want(bp, NO)) { - ct = ctime(&bp->ut_time); - if(bp->ut_type != LOGIN_PROCESS) { - print_partial_line(bp); - putchar('\n'); - } - if (maxrec && !--maxrec) - return; - } - continue; - } - /* find associated tty */ - for (T = ttylist;; T = T->next) { - if (!T) { - /* add new one */ - T = addtty(bp->ut_line); - break; - } - if (!strncmp(T->tty, bp->ut_line, LMAX)) - break; + if (lseek(wfd, (long)(bl * sizeof(buf)), L_SET) == -1 || + (bytes = read(wfd, (char *)buf, sizeof(buf))) == -1) { + fprintf(stderr, "last: %s: ", file); + perror((char *)NULL); + exit(1); + } + for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) { + /* + * if the terminal line is '~', the machine stopped. + * see utmp(5) for more info. + */ + if (!strncmp(bp->ut_line, "~", LMAX)) { + /* + * utmp(5) also mentions that the user + * name should be 'shutdown' or 'reboot'. + * Not checking the name causes i.e. runlevel + * changes to be displayed as 'crash'. -thaele + */ + if (!strncmp(bp->ut_user, "reboot", NMAX) || + !strncmp(bp->ut_user, "shutdown", NMAX)) { + /* everybody just logged out */ + for (T = ttylist; T; T = T->next) + T->logout = -bp->ut_time; + } + + currentout = -bp->ut_time; + crmsg = strncmp(bp->ut_name, "shutdown", NMAX) ? "crash" : "down "; + if (!bp->ut_name[0]) + (void)strcpy(bp->ut_name, "reboot"); + if (want(bp, NO)) { + ct = ctime(&bp->ut_time); + if(bp->ut_type != LOGIN_PROCESS) { + print_partial_line(bp); + putchar('\n'); } - if (bp->ut_name[0] && bp->ut_type != LOGIN_PROCESS - && bp->ut_type != DEAD_PROCESS - && want(bp, YES)) { - - print_partial_line(bp); - - if (!T->logout) - puts(" still logged in"); - else { - if (T->logout < 0) { - T->logout = -T->logout; - printf("- %s", crmsg); - } - else - printf("- %5.5s", ctime(&T->logout)+11); - delta = T->logout - bp->ut_time; - if (delta < SECDAY) - printf(" (%5.5s)\n", asctime(gmtime(&delta))+11); - else - printf(" (%ld+%5.5s)\n", delta / SECDAY, asctime(gmtime(&delta))+11); - } - if (maxrec != -1 && !--maxrec) - return; + if (maxrec && !--maxrec) + return; + } + continue; + } + /* find associated tty */ + for (T = ttylist;; T = T->next) { + if (!T) { + /* add new one */ + T = addtty(bp->ut_line); + break; + } + if (!strncmp(T->tty, bp->ut_line, LMAX)) + break; + } + if (bp->ut_name[0] && bp->ut_type != LOGIN_PROCESS + && bp->ut_type != DEAD_PROCESS + && want(bp, YES)) { + + print_partial_line(bp); + + if (!T->logout) + puts(" still logged in"); + else { + if (T->logout < 0) { + T->logout = -T->logout; + printf("- %s", crmsg); } - T->logout = bp->ut_time; + else + printf("- %5.5s", ctime(&T->logout)+11); + delta = T->logout - bp->ut_time; + if (delta < SECDAY) + printf(" (%5.5s)\n", asctime(gmtime(&delta))+11); + else + printf(" (%ld+%5.5s)\n", delta / SECDAY, asctime(gmtime(&delta))+11); + } + if (maxrec != -1 && !--maxrec) + return; } + T->logout = bp->ut_time; + } } ct = ctime(&buf[0].ut_time); printf("\nwtmp begins %10.10s %5.5s \n", ct, ct + 11); |