--- /dev/null
+/*
+ * Copyright (c) 1980, 1987 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1980, 1987 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)wc.c 5.7 (Berkeley) 3/2/91";
+#endif /* not lint */
+
+/* wc line, word and char count */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include <stdio.h>
+
+#define DEL 0177 /* del char */
+#define NL 012 /* newline char */
+#define SPACE 040 /* space char */
+#define TAB 011 /* tab char */
+
+static long tlinect, twordct, tcharct;
+static int doline, doword, dochar;
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern int optind;
+ register int ch;
+ int total;
+
+ /*
+ * wc is unusual in that its flags are on by default, so,
+ * if you don't get any arguments, you have to turn them
+ * all on.
+ */
+ if (argc > 1 && argv[1][0] == '-' && argv[1][1]) {
+ while ((ch = getopt(argc, argv, "lwc")) != EOF)
+ switch((char)ch) {
+ case 'l':
+ doline = 1;
+ break;
+ case 'w':
+ doword = 1;
+ break;
+ case 'c':
+ dochar = 1;
+ break;
+ case '?':
+ default:
+ fputs("usage: wc [-lwc] [files]\n", stderr);
+ exit(1);
+ }
+ argv += optind;
+ argc -= optind;
+ }
+ else {
+ ++argv;
+ --argc;
+ doline = doword = dochar = 1;
+ }
+
+ total = 0;
+ if (!*argv) {
+ cnt((char *)NULL);
+ putchar('\n');
+ }
+ else do {
+ cnt(*argv);
+ printf(" %s\n", *argv);
+ ++total;
+ } while(*++argv);
+
+ if (total > 1) {
+ if (doline)
+ printf(" %7ld", tlinect);
+ if (doword)
+ printf(" %7ld", twordct);
+ if (dochar)
+ printf(" %7ld", tcharct);
+ puts(" total");
+ }
+ exit(0);
+}
+
+cnt(file)
+ char *file;
+{
+ register u_char *C;
+ register short gotsp;
+ register int len;
+ register long linect, wordct, charct;
+ struct stat sbuf;
+ int fd;
+ u_char buf[MAXBSIZE];
+
+ linect = wordct = charct = 0;
+ if (file) {
+ if ((fd = open(file, O_RDONLY, 0)) < 0) {
+ perror(file);
+ exit(1);
+ }
+ if (!doword) {
+ /*
+ * line counting is split out because it's a lot
+ * faster to get lines than to get words, since
+ * the word count requires some logic.
+ */
+ if (doline) {
+ while(len = read(fd, buf, MAXBSIZE)) {
+ if (len == -1) {
+ perror(file);
+ exit(1);
+ }
+ charct += len;
+ for (C = buf; len--; ++C)
+ if (*C == '\n')
+ ++linect;
+ }
+ tlinect += linect;
+ printf(" %7ld", linect);
+ if (dochar) {
+ tcharct += charct;
+ printf(" %7ld", charct);
+ }
+ close(fd);
+ return;
+ }
+ /*
+ * if all we need is the number of characters and
+ * it's a directory or a regular or linked file, just
+ * stat the puppy. We avoid testing for it not being
+ * a special device in case someone adds a new type
+ * of inode.
+ */
+ if (dochar) {
+ if (fstat(fd, &sbuf)) {
+ perror(file);
+ exit(1);
+ }
+ if (sbuf.st_mode & (S_IFREG | S_IFLNK | S_IFDIR)) {
+ printf(" %7ld", sbuf.st_size);
+ tcharct += sbuf.st_size;
+ close(fd);
+ return;
+ }
+ }
+ }
+ }
+ else
+ fd = 0;
+ /* do it the hard way... */
+ for (gotsp = 1; len = read(fd, buf, MAXBSIZE);) {
+ if (len == -1) {
+ perror(file);
+ exit(1);
+ }
+ charct += len;
+ for (C = buf; len--; ++C)
+ switch(*C) {
+ case NL:
+ ++linect;
+ case TAB:
+ case SPACE:
+ gotsp = 1;
+ continue;
+ default:
+#ifdef notdef
+ /*
+ * This line of code implements the
+ * original V7 wc algorithm, i.e.
+ * a non-printing character doesn't
+ * toggle the "word" count, so that
+ * " ^D^F " counts as 6 spaces,
+ * while "foo^D^Fbar" counts as 8
+ * characters.
+ *
+ * test order is important -- gotsp
+ * will normally be NO, so test it
+ * first
+ */
+ if (gotsp && *C > SPACE && *C < DEL) {
+#endif
+ /*
+ * This line implements the manual
+ * page, i.e. a word is a "maximal
+ * string of characters delimited by
+ * spaces, tabs or newlines." Notice
+ * nothing was said about a character
+ * being printing or non-printing.
+ */
+ if (gotsp) {
+ gotsp = 0;
+ ++wordct;
+ }
+ }
+ }
+ if (doline) {
+ tlinect += linect;
+ printf(" %7ld", linect);
+ }
+ if (doword) {
+ twordct += wordct;
+ printf(" %7ld", wordct);
+ }
+ if (dochar) {
+ tcharct += charct;
+ printf(" %7ld", charct);
+ }
+ close(fd);
+}
--- /dev/null
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)what.1 6.4 (Berkeley) 4/23/91
+.\"
+.Dd April 23, 1991
+.Dt WHAT 1
+.Os BSD 4
+.Sh NAME
+.Nm what
+.Nd "show what versions of object modules were used to construct a file"
+.Sh SYNOPSIS
+.Nm what
+.Ar name Ar ...
+.Sh DESCRIPTION
+.Nm What
+reads each file
+.Ar name
+and searches for sequences of the form
+.Dq \&@(#)
+as inserted by the source code control system. It prints the remainder
+of the string following this marker, up to a null character, newline, double
+quote, or
+.Dq \&> character.
+.Sh BUGS
+As
+.Bx
+is not licensed to distribute
+.Tn SCCS
+this is a rewrite of the
+.Nm what
+command which is part of
+.Tn SCCS ,
+and may not behave exactly the same as that
+command does.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.0 .
--- /dev/null
+/*
+ * Copyright (c) 1980, 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1980, 1988 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)what.c 5.5 (Berkeley) 3/2/91";
+#endif /* not lint */
+
+#include <stdio.h>
+
+/*
+ * what
+ */
+/* ARGSUSED */
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ if (!*++argv)
+ search();
+ else do {
+ if (!freopen(*argv, "r", stdin)) {
+ perror(*argv);
+ exit(1);
+ }
+ printf("%s\n", *argv);
+ search();
+ } while(*++argv);
+ exit(0);
+}
+
+search()
+{
+ register int c;
+
+ while ((c = getchar()) != EOF) {
+loop: if (c != '@')
+ continue;
+ if ((c = getchar()) != '(')
+ goto loop;
+ if ((c = getchar()) != '#')
+ goto loop;
+ if ((c = getchar()) != ')')
+ goto loop;
+ putchar('\t');
+ while ((c = getchar()) != EOF && c && c != '"' &&
+ c != '>' && c != '\n')
+ putchar(c);
+ putchar('\n');
+ }
+}
--- /dev/null
+.\" Copyright (c) 1986, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)who.1 6.5 (Berkeley) 4/23/91
+.\"
+.Dd April 23, 1991
+.Dt WHO 1
+.Os
+.Sh NAME
+.Nm who
+.Nd display who is logged in
+.Sh SYNOPSIS
+.Nm who
+.Op Ar am I
+.Op Ar file
+.Sh DESCRIPTION
+The utility
+.Nm who
+displays
+a list of all users currently logged on, showing for each user
+the login name,
+tty name, the date and time of login, and hostname if not local.
+.Pp
+Available options:
+.Pp
+.Bl -tag -width file
+.It Ar \&am I
+Returns the invoker's real user name.
+.It Ar file
+By default,
+.Nm who
+gathers information from the file
+.Pa /var/run/utmp .
+An alternate
+.Ar file
+may be specified which is usually
+.Pa /var/run/wtmp
+(or
+.Pa /var/run/wtmp.[0-6]
+depending on site policy as
+.Pa wtmp
+can grow quite large and daily versions may or may not
+kept around after compression by
+.Xr ac 8 ) .
+The
+.Pa wtmp
+file contains a record of every login, logout,
+crash, shutdown and date change
+since
+.Pa wtmp
+was last truncated or
+created.
+.El
+.Pp
+If
+.Pa /var/log/wtmp
+is being used as the file, the user name may be empty
+or one of the special characters '|', '}' and '~'. Logouts produce
+an output line without any user name. For more information on the
+special characters, see
+.Xr utmp 5 .
+.Sh FILES
+.Bl -tag -width /var/log/wtmp.[0-6] -compact
+.It Pa /var/run/utmp
+.It Pa /var/log/wtmp
+.It Pa /var/log/wtmp.[0-6]
+.El
+.Sh SEE ALSO
+.Xr last 1 ,
+.Xr users 1 ,
+.Xr getuid 2 ,
+.Xr utmp 5
+.Sh HISTORY
+A
+.Nm
+command appeared in
+.At v6 .
--- /dev/null
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Michael Fischbein.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)who.c 5.11 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/file.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <utmp.h>
+#include <stdio.h>
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ register char *p;
+ struct utmp usr;
+ struct passwd *pw;
+ FILE *ufp, *file();
+ char *t, *rindex(), *strcpy(), *strncpy(), *ttyname();
+ time_t time();
+
+ switch (argc) {
+ case 1: /* who */
+ ufp = file(_PATH_UTMP);
+ /* only entries with both name and line fields */
+ while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
+ if (*usr.ut_name && *usr.ut_line)
+ output(&usr);
+ break;
+ case 2: /* who utmp_file */
+ ufp = file(argv[1]);
+ /* all entries */
+ while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
+ output(&usr);
+ break;
+ case 3: /* who am i */
+ ufp = file(_PATH_UTMP);
+
+ /* search through the utmp and find an entry for this tty */
+ if (p = ttyname(0)) {
+ /* strip any directory component */
+ if (t = rindex(p, '/'))
+ p = t + 1;
+ while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
+ if (usr.ut_name && !strcmp(usr.ut_line, p)) {
+ output(&usr);
+ exit(0);
+ }
+ /* well, at least we know what the tty is */
+ (void)strncpy(usr.ut_line, p, UT_LINESIZE);
+ } else
+ (void)strcpy(usr.ut_line, "tty??");
+ pw = getpwuid(getuid());
+ (void)strncpy(usr.ut_name, pw ? pw->pw_name : "?", UT_NAMESIZE);
+ (void)time(&usr.ut_time);
+ *usr.ut_host = '\0';
+ output(&usr);
+ break;
+ default:
+ (void)fprintf(stderr, "usage: who [ file ]\n who am i\n");
+ exit(1);
+ }
+ exit(0);
+}
+
+output(up)
+ struct utmp *up;
+{
+ char *ctime();
+
+ (void)printf("%-*.*s %-*.*s", UT_NAMESIZE, UT_NAMESIZE, up->ut_name,
+ UT_LINESIZE, UT_LINESIZE, up->ut_line);
+ (void)printf("%.12s", ctime(&up->ut_time) + 4);
+ if (*up->ut_host)
+ printf("\t(%.*s)", UT_HOSTSIZE, up->ut_host);
+ (void)putchar('\n');
+}
+
+FILE *
+file(name)
+ char *name;
+{
+ extern int errno;
+ FILE *ufp;
+ char *strerror();
+
+ if (!(ufp = fopen(name, "r"))) {
+ (void)fprintf(stderr, "who: %s: %s.\n", name, strerror(errno));
+ exit(1);
+ }
+ return(ufp);
+}