-/*-
- * Copyright (c) 2002 Tim J. Robbins.
- * All rights reserved.
+/* $NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $ */
+
+/*
+ * Copyright (c) 1989, 1993
+ * 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
* 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. 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * 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 AUTHOR OR CONTRIBUTORS BE LIABLE
+ * 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)
*/
#include <sys/cdefs.h>
-/* commented as FBSDID not needed for Tiger ......
-__FBSDID("$FreeBSD: src/usr.bin/who/who.c,v 1.20 2003/10/26 05:05:48 peter Exp $");
-*/
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1989, 1993\
+ The Regents of the University of California. All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)who.c 8.1 (Berkeley) 6/6/93";
+#endif
+__RCSID("$NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $");
+#endif /* not lint */
#include <sys/types.h>
-#include <sys/ioctl.h>
#include <sys/stat.h>
#include <err.h>
-#include <errno.h>
-#include <langinfo.h>
-#include <limits.h>
#include <locale.h>
-#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
-#include <timeconv.h>
#include <unistd.h>
+#ifdef SUPPORT_UTMP
+#include <utmp.h>
+#endif
+#ifdef SUPPORT_UTMPX
#include <utmpx.h>
+#endif
+#ifdef __APPLE__
+#include <limits.h>
+#include <paths.h>
+#include <stdint.h>
+#endif /* __APPLE__ */
+
+#include "utmpentry.h"
-/* from utmp.h; used only for print formatting */
-#define UT_NAMESIZE 8
-#define UT_LINESIZE 8
-#define UT_HOSTSIZE 16
-
-static void heading(void);
-static void process_utmp(void);
-static void process_wtmp();
-static void quick(void);
-static void row(const struct utmpx *);
-static int ttywidth(void);
-static void usage(void);
-static void whoami(void);
-
-static int bflag; /* date & time of last reboot */
-static int dflag; /* dead processes */
-static int Hflag; /* Write column headings */
-static int lflag; /* waiting to login */
-static int mflag; /* Show info about current terminal */
-static int pflag; /* Processes active & spawned by init */
-static int qflag; /* "Quick" mode */
-static int rflag; /* run-level of the init process */
-static int sflag; /* Show name, line, time */
-static int tflag; /* time of change to system clock */
-static int Tflag; /* Show terminal state */
-static int uflag; /* Show idle time */
#ifdef __APPLE__
-#include <get_compat.h>
-#else /* !__APPLE__ */
-#define COMPAT_MODE(a,b) (1)
+#define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
#endif /* __APPLE__ */
-static int unix2003_std;
+
+static void output_labels(void);
+static void who_am_i(const char *, int);
+static void usage(void) __dead;
+static void process(const char *, int);
+static void eprint(const struct utmpentry *);
+static void print(const char *, const char *, time_t, const char *, pid_t pid,
+ uint16_t term, uint16_t xit, uint16_t sess, uint16_t type);
+static void quick(const char *);
+
+static int show_term; /* show term state */
+static int show_idle; /* show idle time */
+#ifndef __APPLE__
+static int show_details; /* show exit status etc. */
+#endif /* !__APPLE__ */
+
+struct ut_type_names {
+ int type;
+ const char *name;
+} ut_type_names[] = {
+#ifdef SUPPORT_UTMPX
+ { EMPTY, "empty" },
+ { RUN_LVL, "run level" },
+ { BOOT_TIME, "boot time" },
+ { OLD_TIME, "old time" },
+ { NEW_TIME, "new time" },
+ { INIT_PROCESS, "init process" },
+ { LOGIN_PROCESS, "login process" },
+ { USER_PROCESS, "user process" },
+ { DEAD_PROCESS, "dead process" },
+#if defined(_NETBSD_SOURCE)
+ { ACCOUNTING, "accounting" },
+ { SIGNATURE, "signature" },
+ { DOWN_TIME, "down time" },
+#endif /* _NETBSD_SOURCE */
+#endif /* SUPPORT_UTMPX */
+ { -1, "unknown" }
+};
int
main(int argc, char *argv[])
{
- int ch;
+ int c, only_current_term, show_labels, quick_mode, default_mode;
+ int et = 0;
- setlocale(LC_TIME, "");
+ setlocale(LC_ALL, "");
- unix2003_std = COMPAT_MODE("bin/who", "unix2003");
+ only_current_term = show_term = show_idle = show_labels = 0;
+ quick_mode = default_mode = 0;
- while ((ch = getopt(argc, argv, "abdHlmpqrstTu")) != -1) {
- switch (ch) {
-
- case 'a': /* -b, -d, -l, -p, -r, -t, -T and -u */
- bflag = dflag = lflag = pflag = 1;
- rflag = tflag = Tflag = uflag = 1;
+ while ((c = getopt(argc, argv, "abdHlmpqrsTtuv")) != -1) {
+ switch (c) {
+ case 'a':
+ et = -1;
+#ifdef __APPLE__
+ show_idle = 1;
+#else /* !__APPLE__ */
+ show_idle = show_details = 1;
+#endif /* __APPLE__ */
break;
- case 'b': /* date & time of last reboot */
- bflag = 1;
+ case 'b':
+ et |= (1 << BOOT_TIME);
break;
- case 'd': /* dead processes */
- dflag = 1;
+ case 'd':
+ et |= (1 << DEAD_PROCESS);
break;
- case 'H': /* Write column headings */
- Hflag = 1;
+ case 'H':
+ show_labels = 1;
break;
- case 'l': /* waiting to login */
- lflag = 1;
+ case 'l':
+ et |= (1 << LOGIN_PROCESS);
break;
- case 'm': /* Show info about current terminal */
- mflag = 1;
+ case 'm':
+ only_current_term = 1;
break;
- case 'p': /* Processes active & spawned by init */
- pflag = 1;
+ case 'p':
+ et |= (1 << INIT_PROCESS);
break;
- case 'q': /* "Quick" mode */
- qflag = 1;
+ case 'q':
+ quick_mode = 1;
break;
- case 'r': /* run-level of the init process */
- rflag = 1;
+ case 'r':
+ et |= (1 << RUN_LVL);
break;
- case 's': /* Show name, line, time */
- sflag = 1;
+ case 's':
+ default_mode = 1;
break;
- case 't': /* time of change to system clock */
- tflag = 1;
+ case 'T':
+ show_term = 1;
break;
- case 'T': /* Show terminal state */
- Tflag = 1;
+ case 't':
+ et |= (1 << NEW_TIME);
break;
- case 'u': /* Show idle time */
- uflag = 1;
+ case 'u':
+ show_idle = 1;
break;
+#ifndef __APPLE__
+ case 'v':
+ show_details = 1;
+ break;
+#endif /* !__APPLE__ */
default:
usage();
- /*NOTREACHED*/
+ /* NOTREACHED */
}
}
argc -= optind;
argv += optind;
- if (argc >= 2 && strcmp(argv[0], "am") == 0 &&
- (strcmp(argv[1], "i") == 0 || strcmp(argv[1], "I") == 0)) {
- /* "who am i" or "who am I", equivalent to -m */
- mflag = 1;
- argc -= 2;
- argv += 2;
+ if (et != 0)
+ etype = et;
+
+#ifndef __APPLE__
+ if (chdir("/dev")) {
+ err(EXIT_FAILURE, "cannot change directory to /dev");
+ /* NOTREACHED */
}
- if (argc > 1)
+#endif /* !__APPLE__ */
+
+ if (default_mode)
+ only_current_term = show_term = show_idle = 0;
+
+ switch (argc) {
+ case 0: /* who */
+ if (quick_mode) {
+ quick(NULL);
+ } else if (only_current_term) {
+ who_am_i(NULL, show_labels);
+ } else {
+ process(NULL, show_labels);
+ }
+ break;
+ case 1: /* who utmp_file */
+ if (quick_mode) {
+ quick(*argv);
+ } else if (only_current_term) {
+ who_am_i(*argv, show_labels);
+ } else {
+ process(*argv, show_labels);
+ }
+ break;
+ case 2: /* who am i */
+ who_am_i(NULL, show_labels);
+ break;
+ default:
usage();
-
- if (*argv != NULL) {
- if (!utmpxname(*argv) || !wtmpxname(*argv))
- usage();
+ /* NOTREACHED */
}
- if (qflag)
- quick();
- else {
- if (sflag)
- Tflag = uflag = 0;
- if (Hflag)
- heading();
- if (mflag)
- whoami();
- else
- /* read and process utmpx file for relevant options */
- if( Tflag || uflag || !(bflag || dflag || lflag || pflag || rflag) )
- process_utmp();
- }
+ return 0;
+}
- /* read and process wtmp file for relevant options */
- if (bflag || dflag || lflag || pflag || rflag ) {
+static char *
+strrstr(const char *str, const char *pat)
+{
+ const char *estr;
+ size_t len;
+ if (*pat == '\0')
+ return __UNCONST(str);
- process_wtmp();
- }
+ len = strlen(pat);
- endutxent();
- exit(0);
+ for (estr = str + strlen(str); str < estr; estr--)
+ if (strncmp(estr, pat, len) == 0)
+ return __UNCONST(estr);
+ return NULL;
}
static void
-usage(void)
+who_am_i(const char *fname, int show_labels)
{
-
- fprintf(stderr, "usage: who [-abdHlmpqrstTu] [am I] [file]\n");
- exit(1);
+ struct passwd *pw;
+ const char *p;
+ char *t;
+ time_t now;
+ struct utmpentry *ehead, *ep;
+
+ /* search through the utmp and find an entry for this tty */
+ if ((p = ttyname(STDIN_FILENO)) != NULL) {
+
+ /* strip directory prefixes for ttys */
+ if ((t = strrstr(p, "/pts/")) != NULL ||
+ (t = strrchr(p, '/')) != NULL)
+ p = t + 1;
+
+ (void)getutentries(fname, &ehead);
+ for (ep = ehead; ep; ep = ep->next)
+ if (strcmp(ep->line, p) == 0) {
+ if (show_labels)
+ output_labels();
+ eprint(ep);
+ return;
+ }
+ } else
+ p = "tty??";
+
+ (void)time(&now);
+ pw = getpwuid(getuid());
+ if (show_labels)
+ output_labels();
+ print(pw ? pw->pw_name : "?", p, now, "", getpid(), 0, 0, 0, 0);
}
static void
-heading(void)
+process(const char *fname, int show_labels)
{
+ struct utmpentry *ehead, *ep;
+ (void)getutentries(fname, &ehead);
+ if (show_labels)
+ output_labels();
+ for (ep = ehead; ep != NULL; ep = ep->next)
+ eprint(ep);
+#ifdef __APPLE__
+ if ((etype & (1 << RUN_LVL)) != 0) {
+ printf(" . run-level 3\n");
+ }
+#endif /* __APPLE__ */
+}
- printf("%-*s ", UT_NAMESIZE, "NAME");
- if (Tflag)
- printf("S ");
- printf("%-*s ", UT_LINESIZE, "LINE");
- printf("%-*s ", 12, "TIME");
- if (uflag)
- printf("IDLE ");
- if (unix2003_std && uflag && !Tflag)
- printf(" PID ");
- printf("%-*s", UT_HOSTSIZE, "FROM");
- putchar('\n');
+static void
+eprint(const struct utmpentry *ep)
+{
+ print(ep->name, ep->line, (time_t)ep->tv.tv_sec, ep->host, ep->pid,
+#ifdef __APPLE__
+ 0, 0, 0, ep->type);
+#else /* !__APPLE__ */
+ ep->term, ep->exit, ep->sess, ep->type);
+#endif /* __APPLE__ */
}
static void
-row(const struct utmpx *ut)
+print(const char *name, const char *line, time_t t, const char *host,
+ pid_t pid, uint16_t term, uint16_t xit, uint16_t sess, uint16_t type)
{
- char buf[80], tty[sizeof(_PATH_DEV) + _UTX_LINESIZE];
struct stat sb;
- time_t idle, t;
- static int d_first = -1;
- struct tm *tm;
char state;
- char login_pidstr[20];
+ static time_t now = 0;
+ time_t idle;
+ const char *types = NULL;
+ size_t i;
- if (d_first < 0)
- d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
+ state = '?';
+ idle = 0;
- if (Tflag || uflag) {
- snprintf(tty, sizeof(tty), "%s%.*s", _PATH_DEV,
- _UTX_LINESIZE, ut->ut_line);
- state = '?';
- idle = 0;
+ for (i = 0; ut_type_names[i].type >= 0; i++) {
+ types = ut_type_names[i].name;
+ if (ut_type_names[i].type == type)
+ break;
+ }
+
+ if (show_term || show_idle) {
+ if (now == 0)
+ time(&now);
+
+#ifdef __APPLE__
+ char tty[PATH_MAX + 1];
+ snprintf(tty, sizeof(tty), "%s%s", _PATH_DEV, line);
if (stat(tty, &sb) == 0) {
- state = sb.st_mode & (S_IWOTH|S_IWGRP) ?
- '+' : '-';
- idle = time(NULL) - sb.st_mtime;
- }
- if (unix2003_std && !Tflag) {
- /* uflag without Tflag */
- if (ut->ut_pid) {
- snprintf(login_pidstr,sizeof(login_pidstr),
- "%8d",ut->ut_pid);
- } else {
- strcpy(login_pidstr," ?");
- }
+#else /* !__APPLE__ */
+ if (stat(line, &sb) == 0) {
+#endif /* __APPLE__ */
+ state = (sb.st_mode & 020) ? '+' : '-';
+ idle = now - sb.st_atime;
}
+
}
- printf("%-*.*s ", UT_NAMESIZE, _UTX_USERSIZE, ut->ut_user);
- if (Tflag)
- printf("%c ", state);
- printf("%-*.*s ", UT_LINESIZE, _UTX_LINESIZE, ut->ut_line);
- t = _time32_to_time(ut->ut_tv.tv_sec);
- tm = localtime(&t);
- strftime(buf, sizeof(buf), d_first ? "%e %b %R" : "%b %e %R", tm);
- printf("%-*s ", 12, buf);
- if (uflag) {
- if (idle < 60)
- printf(" . ");
- else if (idle < 24 * 60 * 60)
- printf("%02d:%02d ", (int)(idle / 60 / 60),
- (int)(idle / 60 % 60));
- else
- printf(" old ");
- if (unix2003_std && !Tflag) {
- printf("%s ", login_pidstr);
- }
+#ifdef __APPLE__
+ switch (type) {
+ case LOGIN_PROCESS:
+ (void)printf("%-*.*s ", maxname, maxname, "LOGIN");
+ break;
+ case BOOT_TIME:
+ (void)printf("%-*.*s ", maxname, maxname, "reboot");
+ break;
+ default:
+ (void)printf("%-*.*s ", maxname, maxname, name);
+ break;
}
- if (*ut->ut_host != '\0')
- printf("(%.*s)", _UTX_HOSTSIZE, ut->ut_host);
- putchar('\n');
-
-}
+#else /* !__APPLE__ */
+ (void)printf("%-*.*s ", maxname, maxname, name);
+#endif /* __APPLE__ */
-static void
-process_utmp(void)
-{
- struct utmpx *ut;
+ if (show_term)
+ (void)printf("%c ", state);
- while ((ut = getutxent()) != NULL)
- if (*ut->ut_user != '\0' && ut->ut_type == USER_PROCESS) {
- row(ut);
- }
-}
-
-/* For some options, process the wtmp file to generate output */
-static void
-process_wtmp(void)
-{
- struct utmpx *ut;
- struct utmpx lboot_ut;
- int num = 0; /* count of user entries */
-
- setutxent_wtmp(0); /* zero means reverse chronological */
- lboot_ut.ut_type = 0;
- while (!lboot_ut.ut_type && (ut = getutxent_wtmp()) != NULL) {
- switch(ut->ut_type) {
- case BOOT_TIME:
- lboot_ut = *ut;
- strcpy(lboot_ut.ut_user, "reboot");
- strcpy(lboot_ut.ut_line, "~");
- break;
- case INIT_PROCESS:
- case LOGIN_PROCESS:
- case USER_PROCESS:
- case DEAD_PROCESS:
- num++;
- break;
+#ifdef __APPLE__
+ (void)printf("%-*.*s ", maxline, maxline, type == BOOT_TIME ? "~" : line);
+#else /* !__APPLE__ */
+ (void)printf("%-*.*s ", maxline, maxline, line);
+#endif /* __APPLE__ */
+ (void)printf("%.12s ", ctime(&t) + 4);
+
+ if (show_idle) {
+ if (idle < 60)
+ (void)printf(" . ");
+ else if (idle < (24 * 60 * 60))
+ (void)printf("%02ld:%02ld ",
+ (long)(idle / (60 * 60)),
+ (long)(idle % (60 * 60)) / 60);
+ else
+ (void)printf(" old ");
+
+ (void)printf("\t%6d", pid);
+
+#ifndef __APPLE__
+ if (show_details) {
+ if (type == RUN_LVL)
+ (void)printf("\tnew=%c old=%c", term, xit);
+ else
+ (void)printf("\tterm=%d exit=%d", term, xit);
+ (void)printf(" sess=%d", sess);
+ (void)printf(" type=%s ", types);
}
+#endif /* !__APPLE__ */
}
- endutxent_wtmp();
-
- if (bflag && lboot_ut.ut_type)
- row(&lboot_ut);
+
+#ifdef __APPLE__
+ /* 6179576 */
+ if (type == DEAD_PROCESS)
+ (void)printf("\tterm=%d exit=%d", 0, 0);
+#endif /* __APPLE__ */
- /* run level of the init process is unknown in BSD system. If multi
- user, then display the highest run level. Else, no-op.
- */
- if (rflag && (num > 1))
- printf(" . run-level 3\n");
+ if (*host)
+ (void)printf("\t(%.*s)", maxhost, host);
+ (void)putchar('\n');
}
static void
-quick(void)
+output_labels(void)
{
- struct utmpx *ut;
- int col, ncols, num;
-
- ncols = ttywidth();
- col = num = 0;
- while ((ut = getutxent()) != NULL) {
- if (*ut->ut_user == '\0' || ut->ut_type != USER_PROCESS)
- continue;
- printf("%-*.*s", UT_NAMESIZE, _UTX_USERSIZE, ut->ut_user);
- if (++col < ncols / (UT_NAMESIZE + 1))
- putchar(' ');
- else {
- col = 0;
- putchar('\n');
- }
- num++;
- }
- if (col != 0)
- putchar('\n');
-
- printf("# users = %d\n", num);
+ (void)printf("%-*.*s ", maxname, maxname, "USER");
+
+ if (show_term)
+ (void)printf("S ");
+
+ (void)printf("%-*.*s ", maxline, maxline, "LINE");
+ (void)printf("WHEN ");
+
+ if (show_idle) {
+ (void)printf("IDLE ");
+ (void)printf("\t PID");
+
+ (void)printf("\tCOMMENT");
+ }
+
+ (void)putchar('\n');
}
static void
-whoami(void)
+quick(const char *fname)
{
- struct utmpx ut;
- struct utmpx *u;
- struct passwd *pwd;
- const char *name, *p, *tty;
-
- if ((tty = ttyname(STDIN_FILENO)) == NULL)
- tty = "tty??";
- else if ((p = strrchr(tty, '/')) != NULL)
- tty = p + 1;
-
- memset(&ut, 0, sizeof(ut));
- strncpy(ut.ut_line, tty, sizeof(ut.ut_line));
- memcpy(ut.ut_id, tty + (strlen(tty) - sizeof(ut.ut_id)), sizeof(ut.ut_id));
- ut.ut_type = USER_PROCESS;
- /* Search utmp for our tty, dump first matching record. */
- u = getutxid(&ut);
- if (u) {
- row(u);
- return;
+ struct utmpentry *ehead, *ep;
+ int num = 0;
+
+ (void)getutentries(fname, &ehead);
+ for (ep = ehead; ep != NULL; ep = ep->next) {
+ (void)printf("%-*s ", maxname, ep->name);
+ if ((++num % 8) == 0)
+ (void)putchar('\n');
}
+ if (num % 8)
+ (void)putchar('\n');
- /* Not found; fill the utmpx structure with the information we have. */
- if ((pwd = getpwuid(getuid())) != NULL)
- name = pwd->pw_name;
- else
- name = "?";
- strncpy(ut.ut_user, name, _UTX_USERSIZE);
- ut.ut_tv.tv_sec = _time_to_time32(time(NULL));
- row(&ut);
+ (void)printf("# users = %d\n", num);
}
-static int
-ttywidth(void)
+static void
+usage(void)
{
- struct winsize ws;
- long width;
- char *cols, *ep;
-
- if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') {
- errno = 0;
- width = strtol(cols, &ep, 10);
- if (errno || width <= 0 || width > INT_MAX || ep == cols ||
- *ep != '\0')
- warnx("invalid COLUMNS environment variable ignored");
- else
- return (width);
- }
- if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1)
- return (ws.ws_col);
-
- return (80);
+#ifdef __APPLE__
+ (void)fprintf(stderr, "Usage: %s [-abdHlmpqrsTtu] [file]\n\t%s am i\n",
+#else /* !__APPLE__ */
+ (void)fprintf(stderr, "Usage: %s [-abdHlmqrsTtuv] [file]\n\t%s am i\n",
+#endif /* __APPLE__ */
+ getprogname(), getprogname());
+ exit(EXIT_FAILURE);
}
projects / apple / shell_cmds.git / blobdiff