-/* $NetBSD: who.c,v 1.6 1997/10/20 03:20:29 lukem Exp $ */
+/* $NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $ */
/*
* Copyright (c) 1989, 1993
* 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
+ * 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.
*
#include <sys/cdefs.h>
#ifndef lint
-__COPYRIGHT(
-"@(#) Copyright (c) 1989, 1993\n\
- The Regents of the University of California. All rights reserved.\n");
+__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 1.6 1997/10/20 03:20:29 lukem Exp $");
+__RCSID("$NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
+
#include <err.h>
#include <locale.h>
#include <pwd.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
+#ifdef SUPPORT_UTMP
#include <utmp.h>
-
-void output __P((struct utmp *));
-void output_labels __P((void));
-void who_am_i __P((FILE *));
-FILE *file __P((char *));
-void usage __P((void));
-
-int show_term; /* show term state */
-int show_idle; /* show idle time */
-
-int main __P((int, char **));
+#endif
+#ifdef SUPPORT_UTMPX
+#include <utmpx.h>
+#endif
+#ifdef __APPLE__
+#include <limits.h>
+#include <paths.h>
+#include <stdint.h>
+#endif /* __APPLE__ */
+
+#include "utmpentry.h"
+
+#ifdef __APPLE__
+#define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
+#endif /* __APPLE__ */
+
+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(argc, argv)
- int argc;
- char **argv;
+main(int argc, char *argv[])
{
- struct utmp usr;
- FILE *ufp;
- int c, only_current_term, show_labels;
+ int c, only_current_term, show_labels, quick_mode, default_mode;
+ int et = 0;
setlocale(LC_ALL, "");
only_current_term = show_term = show_idle = show_labels = 0;
- while ((c = getopt(argc, argv, "mTuH")) != -1) {
+ quick_mode = default_mode = 0;
+
+ 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':
+ et |= (1 << BOOT_TIME);
+ break;
+ case 'd':
+ et |= (1 << DEAD_PROCESS);
+ break;
+ case 'H':
+ show_labels = 1;
+ break;
+ case 'l':
+ et |= (1 << LOGIN_PROCESS);
+ break;
case 'm':
only_current_term = 1;
break;
+ case 'p':
+ et |= (1 << INIT_PROCESS);
+ break;
+ case 'q':
+ quick_mode = 1;
+ break;
+ case 'r':
+ et |= (1 << RUN_LVL);
+ break;
+ case 's':
+ default_mode = 1;
+ break;
case 'T':
show_term = 1;
break;
+ case 't':
+ et |= (1 << NEW_TIME);
+ break;
case 'u':
show_idle = 1;
break;
- case 'H':
- show_labels = 1;
+#ifndef __APPLE__
+ case 'v':
+ show_details = 1;
break;
+#endif /* !__APPLE__ */
default:
usage();
/* NOTREACHED */
argc -= optind;
argv += optind;
+ if (et != 0)
+ etype = et;
+
+#ifndef __APPLE__
if (chdir("/dev")) {
- err(1, "cannot change directory to /dev");
+ err(EXIT_FAILURE, "cannot change directory to /dev");
/* NOTREACHED */
}
+#endif /* !__APPLE__ */
- if (show_labels)
- output_labels();
+ if (default_mode)
+ only_current_term = show_term = show_idle = 0;
switch (argc) {
case 0: /* who */
- ufp = file(_PATH_UTMP);
-
- if (only_current_term) {
- who_am_i(ufp);
+ if (quick_mode) {
+ quick(NULL);
+ } else if (only_current_term) {
+ who_am_i(NULL, show_labels);
} else {
- /* 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);
+ process(NULL, show_labels);
}
break;
case 1: /* who utmp_file */
- ufp = file(*argv);
-
- if (only_current_term) {
- who_am_i(ufp);
+ if (quick_mode) {
+ quick(*argv);
+ } else if (only_current_term) {
+ who_am_i(*argv, show_labels);
} else {
- /* all entries */
- while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
- output(&usr);
+ process(*argv, show_labels);
}
break;
case 2: /* who am i */
- ufp = file(_PATH_UTMP);
- who_am_i(ufp);
+ who_am_i(NULL, show_labels);
break;
default:
usage();
/* NOTREACHED */
}
- exit(0);
+
+ return 0;
+}
+
+static char *
+strrstr(const char *str, const char *pat)
+{
+ const char *estr;
+ size_t len;
+ if (*pat == '\0')
+ return __UNCONST(str);
+
+ len = strlen(pat);
+
+ for (estr = str + strlen(str); str < estr; estr--)
+ if (strncmp(estr, pat, len) == 0)
+ return __UNCONST(estr);
+ return NULL;
}
-void
-who_am_i(ufp)
- FILE *ufp;
+static void
+who_am_i(const char *fname, int show_labels)
{
- struct utmp usr;
struct passwd *pw;
- char *p;
+ 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(0)) != NULL) {
- /* strip any directory component */
- if ((t = strrchr(p, '/')) != NULL)
+ if ((p = ttyname(STDIN_FILENO)) != NULL) {
+
+ /* strip directory prefixes for ttys */
+ if ((t = strrstr(p, "/pts/")) != NULL ||
+ (t = strrchr(p, '/')) != NULL)
p = t + 1;
- while (fread((char *)&usr, sizeof(usr), 1, ufp) == 1)
- if (usr.ut_name && !strcmp(usr.ut_line, p)) {
- output(&usr);
+
+ (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;
}
- /* well, at least we know what the tty is */
- (void)strncpy(usr.ut_line, p, UT_LINESIZE);
} else
- (void)strcpy(usr.ut_line, "tty??");
+ p = "tty??";
+ (void)time(&now);
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);
+ if (show_labels)
+ output_labels();
+ print(pw ? pw->pw_name : "?", p, now, "", getpid(), 0, 0, 0, 0);
+}
+
+static 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__ */
+}
+
+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__ */
}
-void
-output(up)
- struct utmp *up;
+static void
+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)
{
struct stat sb;
- char line[sizeof (up->ut_line) + 1];
char state;
static time_t now = 0;
time_t idle;
+ const char *types = NULL;
+ size_t i;
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);
- strncpy(line, up->ut_line, sizeof (up->ut_line));
- line[sizeof (up->ut_line)] = '\0';
-
+#ifdef __APPLE__
+ char tty[PATH_MAX + 1];
+ snprintf(tty, sizeof(tty), "%s%s", _PATH_DEV, line);
+ if (stat(tty, &sb) == 0) {
+#else /* !__APPLE__ */
if (stat(line, &sb) == 0) {
+#endif /* __APPLE__ */
state = (sb.st_mode & 020) ? '+' : '-';
idle = now - sb.st_atime;
}
}
- (void)printf("%-*.*s ", UT_NAMESIZE, UT_NAMESIZE, up->ut_name);
+#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;
+ }
+#else /* !__APPLE__ */
+ (void)printf("%-*.*s ", maxname, maxname, name);
+#endif /* __APPLE__ */
- if (show_term) {
+ if (show_term)
(void)printf("%c ", state);
- }
- (void)printf("%-*.*s ", UT_LINESIZE, UT_LINESIZE, up->ut_line);
- (void)printf("%.12s ", ctime(&up->ut_time) + 4);
+#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)
(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__ */
}
- if (*up->ut_host)
- printf("\t(%.*s)", UT_HOSTSIZE, up->ut_host);
+#ifdef __APPLE__
+ /* 6179576 */
+ if (type == DEAD_PROCESS)
+ (void)printf("\tterm=%d exit=%d", 0, 0);
+#endif /* __APPLE__ */
+
+ if (*host)
+ (void)printf("\t(%.*s)", maxhost, host);
(void)putchar('\n');
}
-void
-output_labels()
+static void
+output_labels(void)
{
- (void)printf("%-*.*s ", UT_NAMESIZE, UT_NAMESIZE, "USER");
+ (void)printf("%-*.*s ", maxname, maxname, "USER");
if (show_term)
(void)printf("S ");
- (void)printf("%-*.*s ", UT_LINESIZE, UT_LINESIZE, "LINE");
+ (void)printf("%-*.*s ", maxline, maxline, "LINE");
(void)printf("WHEN ");
- if (show_idle)
+ if (show_idle) {
(void)printf("IDLE ");
+ (void)printf("\t PID");
- (void)printf("\t%.*s", UT_HOSTSIZE, "FROM");
+ (void)printf("\tCOMMENT");
+ }
(void)putchar('\n');
}
-FILE *
-file(name)
- char *name;
+static void
+quick(const char *fname)
{
- FILE *ufp;
-
- if (!(ufp = fopen(name, "r"))) {
- err(1, "%s", name);
- /* NOTREACHED */
+ 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');
}
- return (ufp);
+ if (num % 8)
+ (void)putchar('\n');
+
+ (void)printf("# users = %d\n", num);
}
-void
-usage()
+static void
+usage(void)
{
- (void)fprintf(stderr, "usage: who [-mTuH] [ file ]\n who am i\n");
- exit(1);
+#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