Adding upstream version 8.32.upstream/8.32upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 602 insertions, 0 deletions

diff --git a/src/pinky.c b/src/pinky.c
new file mode 100644
index 0000000..b86e3ce
--- /dev/null
+++ b/src/pinky.c
@@ -0,0 +1,602 @@
+/* GNU's pinky.
+   Copyright (C) 1992-2020 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Created by hacking who.c by Kaveh Ghazi ghazi@caip.rutgers.edu */
+
+#include <config.h>
+#include <getopt.h>
+#include <pwd.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include "system.h"
+
+#include "canon-host.h"
+#include "die.h"
+#include "error.h"
+#include "hard-locale.h"
+#include "readutmp.h"
+
+/* The official name of this program (e.g., no 'g' prefix).  */
+#define PROGRAM_NAME "pinky"
+
+#define AUTHORS \
+  proper_name ("Joseph Arceneaux"), \
+  proper_name ("David MacKenzie"), \
+  proper_name ("Kaveh Ghazi")
+
+/* If true, display the hours:minutes since each user has touched
+   the keyboard, or blank if within the last minute, or days followed
+   by a 'd' if not within the last day. */
+static bool include_idle = true;
+
+/* If true, display a line at the top describing each field. */
+static bool include_heading = true;
+
+/* if true, display the user's full name from pw_gecos. */
+static bool include_fullname = true;
+
+/* if true, display the user's ~/.project file when doing long format. */
+static bool include_project = true;
+
+/* if true, display the user's ~/.plan file when doing long format. */
+static bool include_plan = true;
+
+/* if true, display the user's home directory and shell
+   when doing long format. */
+static bool include_home_and_shell = true;
+
+/* if true, use the "short" output format. */
+static bool do_short_format = true;
+
+/* if true, display the ut_host field. */
+#ifdef HAVE_UT_HOST
+static bool include_where = true;
+#endif
+
+/* The strftime format to use for login times, and its expected
+   output width.  */
+static char const *time_format;
+static int time_format_width;
+
+static struct option const longopts[] =
+{
+  {GETOPT_HELP_OPTION_DECL},
+  {GETOPT_VERSION_OPTION_DECL},
+  {NULL, 0, NULL, 0}
+};
+
+/* Count and return the number of ampersands in STR.  */
+
+static size_t _GL_ATTRIBUTE_PURE
+count_ampersands (const char *str)
+{
+  size_t count = 0;
+  do
+    {
+      if (*str == '&')
+        count++;
+    } while (*str++);
+  return count;
+}
+
+/* Create a string (via xmalloc) which contains a full name by substituting
+   for each ampersand in GECOS_NAME the USER_NAME string with its first
+   character capitalized.  The caller must ensure that GECOS_NAME contains
+   no ','s.  The caller also is responsible for free'ing the return value of
+   this function.  */
+
+static char *
+create_fullname (const char *gecos_name, const char *user_name)
+{
+  size_t rsize = strlen (gecos_name) + 1;
+  char *result;
+  char *r;
+  size_t ampersands = count_ampersands (gecos_name);
+
+  if (ampersands != 0)
+    {
+      size_t ulen = strlen (user_name);
+      size_t product = ampersands * ulen;
+      rsize += product - ampersands;
+      if (xalloc_oversized (ulen, ampersands) || rsize < product)
+        xalloc_die ();
+    }
+
+  r = result = xmalloc (rsize);
+
+  while (*gecos_name)
+    {
+      if (*gecos_name == '&')
+        {
+          const char *uname = user_name;
+          if (islower (to_uchar (*uname)))
+            *r++ = toupper (to_uchar (*uname++));
+          while (*uname)
+            *r++ = *uname++;
+        }
+      else
+        {
+          *r++ = *gecos_name;
+        }
+
+      gecos_name++;
+    }
+  *r = 0;
+
+  return result;
+}
+
+/* Return a string representing the time between WHEN and the time
+   that this function is first run. */
+
+static const char *
+idle_string (time_t when)
+{
+  static time_t now = 0;
+  static char buf[INT_STRLEN_BOUND (long int) + 2];
+  time_t seconds_idle;
+
+  if (now == 0)
+    time (&now);
+
+  seconds_idle = now - when;
+  if (seconds_idle < 60)	/* One minute. */
+    return "     ";
+  if (seconds_idle < (24 * 60 * 60))	/* One day. */
+    {
+      int hours = seconds_idle / (60 * 60);
+      int minutes = (seconds_idle % (60 * 60)) / 60;
+      sprintf (buf, "%02d:%02d", hours, minutes);
+    }
+  else
+    {
+      unsigned long int days = seconds_idle / (24 * 60 * 60);
+      sprintf (buf, "%lud", days);
+    }
+  return buf;
+}
+
+/* Return a time string.  */
+static const char *
+time_string (const STRUCT_UTMP *utmp_ent)
+{
+  static char buf[INT_STRLEN_BOUND (intmax_t) + sizeof "-%m-%d %H:%M"];
+
+  /* Don't take the address of UT_TIME_MEMBER directly.
+     Ulrich Drepper wrote:
+     "... GNU libc (and perhaps other libcs as well) have extended
+     utmp file formats which do not use a simple time_t ut_time field.
+     In glibc, ut_time is a macro which selects for backward compatibility
+     the tv_sec member of a struct timeval value."  */
+  time_t t = UT_TIME_MEMBER (utmp_ent);
+  struct tm *tmp = localtime (&t);
+
+  if (tmp)
+    {
+      strftime (buf, sizeof buf, time_format, tmp);
+      return buf;
+    }
+  else
+    return timetostr (t, buf);
+}
+
+/* Display a line of information about UTMP_ENT. */
+
+static void
+print_entry (const STRUCT_UTMP *utmp_ent)
+{
+  struct stat stats;
+  time_t last_change;
+  char mesg;
+
+#define DEV_DIR_WITH_TRAILING_SLASH "/dev/"
+#define DEV_DIR_LEN (sizeof (DEV_DIR_WITH_TRAILING_SLASH) - 1)
+
+  char line[sizeof (utmp_ent->ut_line) + DEV_DIR_LEN + 1];
+  char *p = line;
+
+  /* Copy ut_line into LINE, prepending '/dev/' if ut_line is not
+     already an absolute file name.  Some system may put the full,
+     absolute file name in ut_line.  */
+  if ( ! IS_ABSOLUTE_FILE_NAME (utmp_ent->ut_line))
+    p = stpcpy (p, DEV_DIR_WITH_TRAILING_SLASH);
+  stzncpy (p, utmp_ent->ut_line, sizeof (utmp_ent->ut_line));
+
+  if (stat (line, &stats) == 0)
+    {
+      mesg = (stats.st_mode & S_IWGRP) ? ' ' : '*';
+      last_change = stats.st_atime;
+    }
+  else
+    {
+      mesg = '?';
+      last_change = 0;
+    }
+
+  printf ("%-8.*s", UT_USER_SIZE, UT_USER (utmp_ent));
+
+  if (include_fullname)
+    {
+      struct passwd *pw;
+      char name[UT_USER_SIZE + 1];
+
+      stzncpy (name, UT_USER (utmp_ent), UT_USER_SIZE);
+      pw = getpwnam (name);
+      if (pw == NULL)
+        /* TRANSLATORS: Real name is unknown; at most 19 characters. */
+        printf (" %19s", _("        ???"));
+      else
+        {
+          char *const comma = strchr (pw->pw_gecos, ',');
+          char *result;
+
+          if (comma)
+            *comma = '\0';
+
+          result = create_fullname (pw->pw_gecos, pw->pw_name);
+          printf (" %-19.19s", result);
+          free (result);
+        }
+    }
+
+  printf (" %c%-8.*s",
+          mesg, (int) sizeof (utmp_ent->ut_line), utmp_ent->ut_line);
+
+  if (include_idle)
+    {
+      if (last_change)
+        printf (" %-6s", idle_string (last_change));
+      else
+        /* TRANSLATORS: Idle time is unknown; at most 5 characters. */
+        printf (" %-6s", _("?????"));
+    }
+
+  printf (" %s", time_string (utmp_ent));
+
+#ifdef HAVE_UT_HOST
+  if (include_where && utmp_ent->ut_host[0])
+    {
+      char ut_host[sizeof (utmp_ent->ut_host) + 1];
+      char *host = NULL;
+      char *display = NULL;
+
+      /* Copy the host name into UT_HOST, and ensure it's nul terminated. */
+      stzncpy (ut_host, utmp_ent->ut_host, sizeof (utmp_ent->ut_host));
+
+      /* Look for an X display.  */
+      display = strchr (ut_host, ':');
+      if (display)
+        *display++ = '\0';
+
+      if (*ut_host)
+        /* See if we can canonicalize it.  */
+        host = canon_host (ut_host);
+      if ( ! host)
+        host = ut_host;
+
+      if (display)
+        printf (" %s:%s", host, display);
+      else
+        printf (" %s", host);
+
+      if (host != ut_host)
+        free (host);
+    }
+#endif
+
+  putchar ('\n');
+}
+
+/* Display a verbose line of information about UTMP_ENT. */
+
+static void
+print_long_entry (const char name[])
+{
+  struct passwd *pw;
+
+  pw = getpwnam (name);
+
+  printf (_("Login name: "));
+  printf ("%-28s", name);
+
+  printf (_("In real life: "));
+  if (pw == NULL)
+    {
+      /* TRANSLATORS: Real name is unknown; no hard limit. */
+      printf (" %s", _("???\n"));
+      return;
+    }
+  else
+    {
+      char *const comma = strchr (pw->pw_gecos, ',');
+      char *result;
+
+      if (comma)
+        *comma = '\0';
+
+      result = create_fullname (pw->pw_gecos, pw->pw_name);
+      printf (" %s", result);
+      free (result);
+    }
+
+  putchar ('\n');
+
+  if (include_home_and_shell)
+    {
+      printf (_("Directory: "));
+      printf ("%-29s", pw->pw_dir);
+      printf (_("Shell: "));
+      printf (" %s", pw->pw_shell);
+      putchar ('\n');
+    }
+
+  if (include_project)
+    {
+      FILE *stream;
+      char buf[1024];
+      const char *const baseproject = "/.project";
+      char *const project =
+        xmalloc (strlen (pw->pw_dir) + strlen (baseproject) + 1);
+      stpcpy (stpcpy (project, pw->pw_dir), baseproject);
+
+      stream = fopen (project, "r");
+      if (stream)
+        {
+          size_t bytes;
+
+          printf (_("Project: "));
+
+          while ((bytes = fread (buf, 1, sizeof (buf), stream)) > 0)
+            fwrite (buf, 1, bytes, stdout);
+          fclose (stream);
+        }
+
+      free (project);
+    }
+
+  if (include_plan)
+    {
+      FILE *stream;
+      char buf[1024];
+      const char *const baseplan = "/.plan";
+      char *const plan =
+        xmalloc (strlen (pw->pw_dir) + strlen (baseplan) + 1);
+      stpcpy (stpcpy (plan, pw->pw_dir), baseplan);
+
+      stream = fopen (plan, "r");
+      if (stream)
+        {
+          size_t bytes;
+
+          printf (_("Plan:\n"));
+
+          while ((bytes = fread (buf, 1, sizeof (buf), stream)) > 0)
+            fwrite (buf, 1, bytes, stdout);
+          fclose (stream);
+        }
+
+      free (plan);
+    }
+
+  putchar ('\n');
+}
+
+/* Print the username of each valid entry and the number of valid entries
+   in UTMP_BUF, which should have N elements. */
+
+static void
+print_heading (void)
+{
+  printf ("%-8s", _("Login"));
+  if (include_fullname)
+    printf (" %-19s", _("Name"));
+  printf (" %-9s", _(" TTY"));
+  if (include_idle)
+    printf (" %-6s", _("Idle"));
+  printf (" %-*s", time_format_width, _("When"));
+#ifdef HAVE_UT_HOST
+  if (include_where)
+    printf (" %s", _("Where"));
+#endif
+  putchar ('\n');
+}
+
+/* Display UTMP_BUF, which should have N entries. */
+
+static void
+scan_entries (size_t n, const STRUCT_UTMP *utmp_buf,
+              const int argc_names, char *const argv_names[])
+{
+  if (hard_locale (LC_TIME))
+    {
+      time_format = "%Y-%m-%d %H:%M";
+      time_format_width = 4 + 1 + 2 + 1 + 2 + 1 + 2 + 1 + 2;
+    }
+  else
+    {
+      time_format = "%b %e %H:%M";
+      time_format_width = 3 + 1 + 2 + 1 + 2 + 1 + 2;
+    }
+
+  if (include_heading)
+    print_heading ();
+
+  while (n--)
+    {
+      if (IS_USER_PROCESS (utmp_buf))
+        {
+          if (argc_names)
+            {
+              for (int i = 0; i < argc_names; i++)
+                if (STREQ_LEN (UT_USER (utmp_buf), argv_names[i], UT_USER_SIZE))
+                  {
+                    print_entry (utmp_buf);
+                    break;
+                  }
+            }
+          else
+            print_entry (utmp_buf);
+        }
+      utmp_buf++;
+    }
+}
+
+/* Display a list of who is on the system, according to utmp file FILENAME. */
+
+static void
+short_pinky (const char *filename,
+             const int argc_names, char *const argv_names[])
+{
+  size_t n_users;
+  STRUCT_UTMP *utmp_buf = NULL;
+
+  if (read_utmp (filename, &n_users, &utmp_buf, 0) != 0)
+    die (EXIT_FAILURE, errno, "%s", quotef (filename));
+
+  scan_entries (n_users, utmp_buf, argc_names, argv_names);
+
+  IF_LINT (free (utmp_buf));
+}
+
+static void
+long_pinky (const int argc_names, char *const argv_names[])
+{
+  for (int i = 0; i < argc_names; i++)
+    print_long_entry (argv_names[i]);
+}
+
+void
+usage (int status)
+{
+  if (status != EXIT_SUCCESS)
+    emit_try_help ();
+  else
+    {
+      printf (_("Usage: %s [OPTION]... [USER]...\n"), program_name);
+      fputs (_("\
+\n\
+  -l              produce long format output for the specified USERs\n\
+  -b              omit the user's home directory and shell in long format\n\
+  -h              omit the user's project file in long format\n\
+  -p              omit the user's plan file in long format\n\
+  -s              do short format output, this is the default\n\
+"), stdout);
+      fputs (_("\
+  -f              omit the line of column headings in short format\n\
+  -w              omit the user's full name in short format\n\
+  -i              omit the user's full name and remote host in short format\n\
+  -q              omit the user's full name, remote host and idle time\n\
+                  in short format\n\
+"), stdout);
+      fputs (HELP_OPTION_DESCRIPTION, stdout);
+      fputs (VERSION_OPTION_DESCRIPTION, stdout);
+      printf (_("\
+\n\
+A lightweight 'finger' program;  print user information.\n\
+The utmp file will be %s.\n\
+"), UTMP_FILE);
+      emit_ancillary_info (PROGRAM_NAME);
+    }
+  exit (status);
+}
+
+int
+main (int argc, char **argv)
+{
+  int optc;
+  int n_users;
+
+  initialize_main (&argc, &argv);
+  set_program_name (argv[0]);
+  setlocale (LC_ALL, "");
+  bindtextdomain (PACKAGE, LOCALEDIR);
+  textdomain (PACKAGE);
+
+  atexit (close_stdout);
+
+  while ((optc = getopt_long (argc, argv, "sfwiqbhlp", longopts, NULL)) != -1)
+    {
+      switch (optc)
+        {
+        case 's':
+          do_short_format = true;
+          break;
+
+        case 'l':
+          do_short_format = false;
+          break;
+
+        case 'f':
+          include_heading = false;
+          break;
+
+        case 'w':
+          include_fullname = false;
+          break;
+
+        case 'i':
+          include_fullname = false;
+#ifdef HAVE_UT_HOST
+          include_where = false;
+#endif
+          break;
+
+        case 'q':
+          include_fullname = false;
+#ifdef HAVE_UT_HOST
+          include_where = false;
+#endif
+          include_idle = false;
+          break;
+
+        case 'h':
+          include_project = false;
+          break;
+
+        case 'p':
+          include_plan = false;
+          break;
+
+        case 'b':
+          include_home_and_shell = false;
+          break;
+
+        case_GETOPT_HELP_CHAR;
+
+        case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
+
+        default:
+          usage (EXIT_FAILURE);
+        }
+    }
+
+  n_users = argc - optind;
+
+  if (!do_short_format && n_users == 0)
+    {
+      error (0, 0, _("no username specified; at least one must be\
+ specified when using -l"));
+      usage (EXIT_FAILURE);
+    }
+
+  if (do_short_format)
+    short_pinky (UTMP_FILE, n_users, argv + optind);
+  else
+    long_pinky (n_users, argv + optind);
+
+  return EXIT_SUCCESS;
+}