X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/f15db44997a25eaa5c7c6a3f8fdf294e67dc5557..d63f25b0b4d175907e36ddc4bba30491bea130d4:/usr/src/usr.bin/last/last.c diff --git a/usr/src/usr.bin/last/last.c b/usr/src/usr.bin/last/last.c index fe7702b0af..0798080c6d 100644 --- a/usr/src/usr.bin/last/last.c +++ b/usr/src/usr.bin/last/last.c @@ -1,33 +1,35 @@ /* - * Copyright (c) 1987 Regents of the University of California. - * All rights reserved. + * Copyright (c) 1987, 1993, 1994 + * The Regents of the University of California. All rights reserved. * * %sccs.include.redist.c% */ #ifndef lint -char copyright[] = -"@(#) Copyright (c) 1987 Regents of the University of California.\n\ - All rights reserved.\n"; +static char copyright[] = +"@(#) Copyright (c) 1987, 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint -static char sccsid[] = "@(#)last.c 5.17 (Berkeley) %G%"; +static char sccsid[] = "@(#)last.c 8.2 (Berkeley) %G%"; #endif /* not lint */ -/* - * last - */ #include #include -#include + +#include +#include +#include #include +#include +#include +#include #include +#include +#include #include -#include -#include -#define SECDAY (24*60*60) /* seconds in a day */ #define NO 0 /* false/no */ #define YES 1 /* true/yes */ @@ -54,19 +56,27 @@ static long currentout, /* current logout value */ maxrec; /* records to display */ static char *file = _PATH_WTMP; /* wtmp file */ +void addarg __P((int, char *)); +TTY *addtty __P((char *)); +void hostconv __P((char *)); +void onintr __P((int)); +char *ttyconv __P((char *)); +int want __P((struct utmp *, int)); +void wtmp __P((void)); + +int main(argc, argv) int argc; - char **argv; + char *argv[]; { extern int optind; extern char *optarg; int ch; - long atol(); - char *p, *ttyconv(); + char *p; maxrec = -1; while ((ch = getopt(argc, argv, "0123456789f:h:t:")) != EOF) - switch((char)ch) { + switch (ch) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': /* @@ -95,7 +105,8 @@ main(argc, argv) break; case '?': default: - fputs("usage: last [-#] [-f file] [-t tty] [-h hostname] [user ...]\n", stderr); + (void)fprintf(stderr, + "usage: last [-#] [-f file] [-t tty] [-h hostname] [user ...]\n"); exit(1); } @@ -118,24 +129,18 @@ main(argc, argv) * wtmp -- * read through the wtmp file */ -static +void wtmp() { - register struct utmp *bp; /* current structure */ - register TTY *T; /* tty list entry */ + struct utmp *bp; /* current structure */ + TTY *T; /* tty list entry */ struct stat stb; /* stat of file for size */ - long bl, delta, /* time difference */ - lseek(), time(); - int bytes, wfd, - onintr(); - char *ct, *crmsg, - *asctime(), *ctime(), *strcpy(); - TTY *addtty(); + long bl, delta; /* time difference */ + int bytes, wfd; + char *ct, *crmsg; - if ((wfd = open(file, O_RDONLY, 0)) < 0 || fstat(wfd, &stb) == -1) { - perror(file); - exit(1); - } + if ((wfd = open(file, O_RDONLY, 0)) < 0 || fstat(wfd, &stb) == -1) + err(1, "%s", file); bl = (stb.st_size + sizeof(buf) - 1) / sizeof(buf); (void)time(&buf[0].ut_time); @@ -143,12 +148,9 @@ 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); - } + if (lseek(wfd, (off_t)(bl * sizeof(buf)), L_SET) == -1 || + (bytes = read(wfd, buf, sizeof(buf))) == -1) + err(1, "%s", file); for (bp = &buf[bytes / sizeof(buf[0]) - 1]; bp >= buf; --bp) { /* * if the terminal line is '~', the machine stopped. @@ -163,7 +165,12 @@ wtmp() UT_NAMESIZE) ? "crash" : "shutdown"; if (want(bp, NO)) { ct = ctime(&bp->ut_time); - printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s \n", UT_NAMESIZE, UT_NAMESIZE, bp->ut_name, UT_LINESIZE, UT_LINESIZE, bp->ut_line, UT_HOSTSIZE, UT_HOSTSIZE, bp->ut_host, ct, ct + 11); + printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s \n", + UT_NAMESIZE, UT_NAMESIZE, + bp->ut_name, UT_LINESIZE, + UT_LINESIZE, bp->ut_line, + UT_HOSTSIZE, UT_HOSTSIZE, + bp->ut_host, ct, ct + 11); if (maxrec != -1 && !--maxrec) return; } @@ -177,7 +184,11 @@ wtmp() && !bp->ut_line[1]) { if (want(bp, NO)) { ct = ctime(&bp->ut_time); - printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s \n", UT_NAMESIZE, UT_NAMESIZE, bp->ut_name, UT_LINESIZE, UT_LINESIZE, bp->ut_line, UT_HOSTSIZE, UT_HOSTSIZE, bp->ut_host, ct, ct + 11); + printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s \n", + UT_NAMESIZE, UT_NAMESIZE, bp->ut_name, + UT_LINESIZE, UT_LINESIZE, bp->ut_line, + UT_HOSTSIZE, UT_HOSTSIZE, bp->ut_host, + ct, ct + 11); if (maxrec && !--maxrec) return; } @@ -195,7 +206,11 @@ wtmp() } if (bp->ut_name[0] && want(bp, YES)) { ct = ctime(&bp->ut_time); - printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s ", UT_NAMESIZE, UT_NAMESIZE, bp->ut_name, UT_LINESIZE, UT_LINESIZE, bp->ut_line, UT_HOSTSIZE, UT_HOSTSIZE, bp->ut_host, ct, ct + 11); + printf("%-*.*s %-*.*s %-*.*s %10.10s %5.5s ", + UT_NAMESIZE, UT_NAMESIZE, bp->ut_name, + UT_LINESIZE, UT_LINESIZE, bp->ut_line, + UT_HOSTSIZE, UT_HOSTSIZE, bp->ut_host, + ct, ct + 11); if (!T->logout) puts(" still logged in"); else { @@ -204,12 +219,16 @@ wtmp() printf("- %s", crmsg); } else - printf("- %5.5s", ctime(&T->logout)+11); + printf("- %5.5s", + ctime(&T->logout)+11); delta = T->logout - bp->ut_time; - if (delta < SECDAY) - printf(" (%5.5s)\n", asctime(gmtime(&delta))+11); + if (delta < SECSPERDAY) + printf(" (%5.5s)\n", + asctime(gmtime(&delta))+11); else - printf(" (%ld+%5.5s)\n", delta / SECDAY, asctime(gmtime(&delta))+11); + printf(" (%ld+%5.5s)\n", + delta / SECSPERDAY, + asctime(gmtime(&delta))+11); } if (maxrec != -1 && !--maxrec) return; @@ -225,12 +244,12 @@ wtmp() * want -- * see if want this entry */ -static +int want(bp, check) - register struct utmp *bp; + struct utmp *bp; int check; { - register ARG *step; + ARG *step; if (check) /* @@ -243,42 +262,39 @@ want(bp, check) else if (!strncmp(bp->ut_line, "uucp", sizeof("uucp") - 1)) bp->ut_line[4] = '\0'; if (!arglist) - return(YES); + return (YES); for (step = arglist; step; step = step->next) switch(step->type) { case HOST_TYPE: if (!strncasecmp(step->name, bp->ut_host, UT_HOSTSIZE)) - return(YES); + return (YES); break; case TTY_TYPE: if (!strncmp(step->name, bp->ut_line, UT_LINESIZE)) - return(YES); + return (YES); break; case USER_TYPE: if (!strncmp(step->name, bp->ut_name, UT_NAMESIZE)) - return(YES); + return (YES); break; } - return(NO); + return (NO); } /* * addarg -- * add an entry to a linked list of arguments */ -static +void addarg(type, arg) int type; char *arg; { - register ARG *cur; - char *malloc(); + ARG *cur; - if (!(cur = (ARG *)malloc((u_int)sizeof(ARG)))) { - fputs("last: malloc failure.\n", stderr); - exit(1); - } + if (!(cur = (ARG *)malloc((u_int)sizeof(ARG)))) + err(1, "malloc failure"); cur->next = arglist; cur->type = type; cur->name = arg; @@ -289,21 +305,18 @@ addarg(type, arg) * addtty -- * add an entry to a linked list of ttys */ -static TTY * +TTY * addtty(ttyname) char *ttyname; { - register TTY *cur; - char *malloc(); + TTY *cur; - if (!(cur = (TTY *)malloc((u_int)sizeof(TTY)))) { - fputs("last: malloc failure.\n", stderr); - exit(1); - } + if (!(cur = (TTY *)malloc((u_int)sizeof(TTY)))) + err(1, "malloc failure"); cur->next = ttylist; cur->logout = currentout; - bcopy(ttyname, cur->tty, UT_LINESIZE); - return(ttylist = cur); + memmove(cur->tty, ttyname, UT_LINESIZE); + return (ttylist = cur); } /* @@ -312,23 +325,21 @@ addtty(ttyname) * has a domain attached that is the same as the current domain, rip * off the domain suffix since that's what login(1) does. */ -static +void hostconv(arg) char *arg; { static int first = 1; static char *hostdot, name[MAXHOSTNAMELEN]; - char *argdot, *index(); + char *argdot; - if (!(argdot = index(arg, '.'))) + if (!(argdot = strchr(arg, '.'))) return; if (first) { first = 0; - if (gethostname(name, sizeof(name))) { - perror("last: gethostname"); - exit(1); - } - hostdot = index(name, '.'); + if (gethostname(name, sizeof(name))) + err(1, "gethostname"); + hostdot = strchr(name, '.'); } if (hostdot && !strcasecmp(hostdot, argdot)) *argdot = '\0'; @@ -338,11 +349,11 @@ hostconv(arg) * ttyconv -- * convert tty to correct name. */ -static char * +char * ttyconv(arg) char *arg; { - char *mval, *malloc(), *strcpy(); + char *mval; /* * kludge -- we assume that all tty's end with @@ -350,32 +361,30 @@ ttyconv(arg) */ if (strlen(arg) == 2) { /* either 6 for "ttyxx" or 8 for "console" */ - if (!(mval = malloc((u_int)8))) { - fputs("last: malloc failure.\n", stderr); - exit(1); - } + if (!(mval = malloc((u_int)8))) + err(1, "malloc failure"); if (!strcmp(arg, "co")) (void)strcpy(mval, "console"); else { (void)strcpy(mval, "tty"); (void)strcpy(mval + 3, arg); } - return(mval); + return (mval); } if (!strncmp(arg, _PATH_DEV, sizeof(_PATH_DEV) - 1)) - return(arg + 5); - return(arg); + return (arg + 5); + return (arg); } /* * onintr -- * on interrupt, we inform the user how far we've gotten */ -static +void onintr(signo) int signo; { - char *ct, *ctime(); + char *ct; ct = ctime(&buf[0].ut_time); printf("\ninterrupted %10.10s %5.5s \n", ct, ct + 11);