2 Copyright (C) 1992-1997, 1999-2003 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Created by hacking who.c by Kaveh Ghazi ghazi@caip.rutgers.edu */
25 #include <sys/types.h>
31 /* The official name of this program (e.g., no `g' prefix). */
32 #define PROGRAM_NAME "pinky"
34 #define WRITTEN_BY _("Written by Joseph Arceneaux, David MacKenzie, and Kaveh Ghazi.")
36 #ifndef MAXHOSTNAMELEN
37 # define MAXHOSTNAMELEN 64
47 /* The name this program was run with. */
48 const char *program_name;
50 /* If nonzero, display the hours:minutes since each user has touched
51 the keyboard, or blank if within the last minute, or days followed
52 by a 'd' if not within the last day. */
53 static int include_idle = 1;
55 /* If nonzero, display a line at the top describing each field. */
56 static int include_heading = 1;
58 /* if nonzero, display the user's full name from pw_gecos. */
59 static int include_fullname = 1;
61 /* if nonzero, display the user's ~/.project file when doing long format. */
62 static int include_project = 1;
64 /* if nonzero, display the user's ~/.plan file when doing long format. */
65 static int include_plan = 1;
67 /* if nonzero, display the user's home directory and shell
68 when doing long format. */
69 static int include_home_and_shell = 1;
71 /* if nonzero, use the "short" output format. */
72 static int do_short_format = 1;
74 /* if nonzero, display the ut_host field. */
76 static int include_where = 1;
79 static struct option const longopts[] =
81 {GETOPT_HELP_OPTION_DECL},
82 {GETOPT_VERSION_OPTION_DECL},
86 /* Count and return the number of ampersands in STR. */
89 count_ampersands (const char *str)
100 /* Create a string (via xmalloc) which contains a full name by substituting
101 for each ampersand in GECOS_NAME the USER_NAME string with its first
102 character capitalized. The caller must ensure that GECOS_NAME contains
103 no `,'s. The caller also is responsible for free'ing the return value of
107 create_fullname (const char *gecos_name, const char *user_name)
109 const int result_len = strlen (gecos_name)
110 + count_ampersands (gecos_name) * (strlen (user_name) - 1) + 1;
111 char *const result = xmalloc (result_len);
116 if (*gecos_name == '&')
118 const char *uname = user_name;
119 if (ISLOWER (*uname))
120 *r++ = TOUPPER (*uname++);
136 /* Return a string representing the time between WHEN and the time
137 that this function is first run. */
140 idle_string (time_t when)
142 static time_t now = 0;
143 static char idle_hhmm[10];
149 seconds_idle = now - when;
150 if (seconds_idle < 60) /* One minute. */
152 if (seconds_idle < (24 * 60 * 60)) /* One day. */
154 sprintf (idle_hhmm, "%02d:%02d",
155 (int) (seconds_idle / (60 * 60)),
156 (int) ((seconds_idle % (60 * 60)) / 60));
157 return (const char *) idle_hhmm;
159 sprintf (idle_hhmm, "%dd", (int) (seconds_idle / (24 * 60 * 60)));
160 return (const char *) idle_hhmm;
163 /* Display a line of information about UTMP_ENT. */
166 print_entry (const STRUCT_UTMP *utmp_ent)
172 #define DEV_DIR_WITH_TRAILING_SLASH "/dev/"
173 #define DEV_DIR_LEN (sizeof (DEV_DIR_WITH_TRAILING_SLASH) - 1)
175 char line[sizeof (utmp_ent->ut_line) + DEV_DIR_LEN + 1];
178 /* Copy ut_line into LINE, prepending `/dev/' if ut_line is not
179 already an absolute pathname. Some system may put the full,
180 absolute pathname in ut_line. */
181 if (utmp_ent->ut_line[0] == '/')
183 strncpy (line, utmp_ent->ut_line, sizeof (utmp_ent->ut_line));
184 line[sizeof (utmp_ent->ut_line)] = '\0';
188 strcpy (line, DEV_DIR_WITH_TRAILING_SLASH);
189 strncpy (line + DEV_DIR_LEN, utmp_ent->ut_line, sizeof (utmp_ent->ut_line));
190 line[DEV_DIR_LEN + sizeof (utmp_ent->ut_line)] = '\0';
193 if (stat (line, &stats) == 0)
195 mesg = (stats.st_mode & S_IWGRP) ? ' ' : '*';
196 last_change = stats.st_atime;
204 printf ("%-8.*s", (int) sizeof (UT_USER (utmp_ent)), UT_USER (utmp_ent));
206 if (include_fullname)
209 char name[sizeof (UT_USER (utmp_ent)) + 1];
211 strncpy (name, UT_USER (utmp_ent), sizeof (UT_USER (utmp_ent)));
212 name[sizeof (UT_USER (utmp_ent))] = '\0';
213 pw = getpwnam (name);
215 printf (" %19s", " ???");
218 char *const comma = strchr (pw->pw_gecos, ',');
224 result = create_fullname (pw->pw_gecos, pw->pw_name);
225 printf (" %-19.19s", result);
231 mesg, (int) sizeof (utmp_ent->ut_line), utmp_ent->ut_line);
236 printf (" %-6s", idle_string (last_change));
238 printf (" %-6s", "???");
241 /* Don't take the address of UT_TIME_MEMBER directly.
242 Ulrich Drepper wrote:
243 ``... GNU libc (and perhaps other libcs as well) have extended
244 utmp file formats which do not use a simple time_t ut_time field.
245 In glibc, ut_time is a macro which selects for backward compatibility
246 the tv_sec member of a struct timeval value.'' */
247 tm = UT_TIME_MEMBER (utmp_ent);
248 printf (" %-12.12s", ctime (&tm) + 4);
251 if (include_where && utmp_ent->ut_host[0])
253 extern char *canon_host ();
254 char ut_host[sizeof (utmp_ent->ut_host) + 1];
255 char *host = 0, *display = 0;
257 /* Copy the host name into UT_HOST, and ensure it's nul terminated. */
258 strncpy (ut_host, utmp_ent->ut_host, (int) sizeof (utmp_ent->ut_host));
259 ut_host[sizeof (utmp_ent->ut_host)] = '\0';
261 /* Look for an X display. */
262 display = strchr (ut_host, ':');
267 /* See if we can canonicalize it. */
268 host = canon_host (ut_host);
273 printf (" %s:%s", host, display);
275 printf (" %s", host);
282 /* Display a verbose line of information about UTMP_ENT. */
285 print_long_entry (const char name[])
289 pw = getpwnam (name);
291 printf (_("Login name: "));
292 printf ("%-28s", name);
294 printf (_("In real life: "));
297 printf (" %s", _("???\n"));
302 char *const comma = strchr (pw->pw_gecos, ',');
308 result = create_fullname (pw->pw_gecos, pw->pw_name);
309 printf (" %s", result);
315 if (include_home_and_shell)
317 printf (_("Directory: "));
318 printf ("%-29s", pw->pw_dir);
319 printf (_("Shell: "));
320 printf (" %s", pw->pw_shell);
328 const char *const baseproject = "/.project";
329 char *const project =
330 xmalloc (strlen (pw->pw_dir) + strlen (baseproject) + 1);
332 strcpy (project, pw->pw_dir);
333 strcat (project, baseproject);
335 stream = fopen (project, "r");
340 printf (_("Project: "));
342 while ((bytes = fread (buf, 1, sizeof (buf), stream)) > 0)
343 fwrite (buf, 1, bytes, stdout);
354 const char *const baseplan = "/.plan";
356 xmalloc (strlen (pw->pw_dir) + strlen (baseplan) + 1);
358 strcpy (plan, pw->pw_dir);
359 strcat (plan, baseplan);
361 stream = fopen (plan, "r");
366 printf (_("Plan:\n"));
368 while ((bytes = fread (buf, 1, sizeof (buf), stream)) > 0)
369 fwrite (buf, 1, bytes, stdout);
379 /* Print the username of each valid entry and the number of valid entries
380 in UTMP_BUF, which should have N elements. */
385 printf ("%-8s", _("Login"));
386 if (include_fullname)
387 printf (" %-19s", _("Name"));
388 printf (" %-9s", _(" TTY"));
390 printf (" %-6s", _("Idle"));
391 printf (" %-12s", _("When"));
394 printf (" %s", _("Where"));
399 /* Display UTMP_BUF, which should have N entries. */
402 scan_entries (int n, const STRUCT_UTMP *utmp_buf,
403 const int argc_names, char *const argv_names[])
410 if (UT_USER (utmp_buf)[0]
412 && utmp_buf->ut_type == USER_PROCESS
420 for (i = 0; i < argc_names; i++)
421 if (strncmp (UT_USER (utmp_buf), argv_names[i],
422 sizeof (UT_USER (utmp_buf))) == 0)
424 print_entry (utmp_buf);
429 print_entry (utmp_buf);
435 /* Display a list of who is on the system, according to utmp file FILENAME. */
438 short_pinky (const char *filename,
439 const int argc_names, char *const argv_names[])
442 STRUCT_UTMP *utmp_buf;
443 int fail = read_utmp (filename, &n_users, &utmp_buf);
446 error (EXIT_FAILURE, errno, "%s", filename);
448 scan_entries (n_users, utmp_buf, argc_names, argv_names);
452 long_pinky (const int argc_names, char *const argv_names[])
456 for (i = 0; i < argc_names; i++)
457 print_long_entry (argv_names[i]);
464 fprintf (stderr, _("Try `%s --help' for more information.\n"),
468 printf (_("Usage: %s [OPTION]... [USER]...\n"), program_name);
471 -l produce long format output for the specified USERs\n\
472 -b omit the user's home directory and shell in long format\n\
473 -h omit the user's project file in long format\n\
474 -p omit the user's plan file in long format\n\
475 -s do short format output, this is the default\n\
478 -f omit the line of column headings in short format\n\
479 -w omit the user's full name in short format\n\
480 -i omit the user's full name and remote host in short format\n\
481 -q omit the user's full name, remote host and idle time\n\
484 fputs (HELP_OPTION_DESCRIPTION, stdout);
485 fputs (VERSION_OPTION_DESCRIPTION, stdout);
488 A lightweight `finger' program; print user information.\n\
489 The utmp file will be %s.\n\
491 printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
497 main (int argc, char **argv)
502 initialize_main (&argc, &argv);
503 program_name = argv[0];
504 setlocale (LC_ALL, "");
505 bindtextdomain (PACKAGE, LOCALEDIR);
506 textdomain (PACKAGE);
508 atexit (close_stdout);
510 while ((optc = getopt_long (argc, argv, "sfwiqbhlp", longopts, &longind))
531 include_fullname = 0;
535 include_fullname = 0;
542 include_fullname = 0;
558 include_home_and_shell = 0;
561 case_GETOPT_HELP_CHAR;
563 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, WRITTEN_BY);
566 usage (EXIT_FAILURE);
570 n_users = argc - optind;
572 if (do_short_format == 0 && n_users == 0)
574 error (0, 0, _("no username specified; at least one must be\
575 specified when using -l"));
576 usage (EXIT_FAILURE);
580 short_pinky (UTMP_FILE, n_users, argv + optind);
582 long_pinky (n_users, argv + optind);