.

1 files changed, 517 insertions, 0 deletions

diff --git a/src/pinky.c b/src/pinky.c
new file mode 100644
index 000000000..d307faefd
--- /dev/null
+++ b/src/pinky.c
@@ -0,0 +1,517 @@
+/* GNU's pinky.
+   Copyright (C) 92, 93, 94, 95, 96, 1997 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 2, 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, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Created by hacking who.c by Kaveh Ghazi ghazi@caip.rutgers.edu */
+
+#include <config.h>
+#include <getopt.h>
+#include <pwd.h>
+
+#include "system.h"
+#include "error.h"
+#include "readutmp.h"
+
+#ifndef MAXHOSTNAMELEN
+# define MAXHOSTNAMELEN 64
+#endif
+
+#ifndef S_IWGRP
+# define S_IWGRP 020
+#endif
+
+int gethostname ();
+char *ttyname ();
+char *xmalloc ();
+
+/* The name this program was run with. */
+const char *program_name;
+
+/* If nonzero, display usage information and exit.  */
+static int show_help;
+
+/* If nonzero, print the version on standard output and exit.  */
+static int show_version;
+
+/* If nonzero, 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 int include_idle = 1;
+
+/* If nonzero, display a line at the top describing each field. */
+static int include_heading = 1;
+
+/* if nonzero, display the user's full name from pw_gecos. */
+static int include_fullname = 1;
+
+/* if nonzero, display the user's ~/.project file when doing long format. */
+static int include_project = 1;
+
+/* if nonzero, display the user's ~/.plan file when doing long format. */
+static int include_plan = 1;
+
+/* if nonzero, display the user's home directory and shell
+   when doing long format. */
+static int include_home_and_shell = 1;
+
+/* if nonzero, use the "short" output format. */
+static int do_short_format = 1;
+
+/* if nonzero, display the ut_host field. */
+#ifdef HAVE_UT_HOST
+static int include_where = 1;
+#endif
+
+static struct option const longopts[] =
+{
+  {"help", no_argument, &show_help, 1},
+  {"version", no_argument, &show_version, 1},
+  {NULL, 0, NULL, 0}
+};
+
+/* 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 idle_hhmm[10];
+  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. */
+    {
+      sprintf (idle_hhmm, "%02d:%02d",
+	       (int) (seconds_idle / (60 * 60)),
+	       (int) ((seconds_idle % (60 * 60)) / 60));
+      return (const char *) idle_hhmm;
+    }
+  sprintf(idle_hhmm, "%dd", (int) (seconds_idle / (24 * 60 * 60)));
+  return (const char *) idle_hhmm;
+}
+
+/* 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];
+  time_t tm;
+
+  /* Copy ut_line into LINE, prepending `/dev/' if ut_line is not
+     already an absolute pathname.  Some system may put the full,
+     absolute pathname in ut_line.  */
+  if (utmp_ent->ut_line[0] == '/')
+    {
+      strncpy (line, utmp_ent->ut_line, sizeof (utmp_ent->ut_line));
+      line[sizeof (utmp_ent->ut_line)] = '\0';
+    }
+  else
+    {
+      strcpy (line, DEV_DIR_WITH_TRAILING_SLASH);
+      strncpy (line + DEV_DIR_LEN, utmp_ent->ut_line, sizeof (utmp_ent->ut_line));
+      line[DEV_DIR_LEN + sizeof (utmp_ent->ut_line)] = '\0';
+    }
+
+  if (stat (line, &stats) == 0)
+    {
+      mesg = (stats.st_mode & S_IWGRP) ? ' ' : '*';
+      last_change = stats.st_atime;
+    }
+  else
+    {
+      mesg = '?';
+      last_change = 0;
+    }
+
+  printf ("%-8.*s", (int) sizeof (utmp_ent->ut_name), utmp_ent->ut_name);
+
+  if (include_fullname)
+    {
+      struct passwd * pw;
+      char name[sizeof(utmp_ent->ut_name)+1];
+      
+      strncpy(name, utmp_ent->ut_name, sizeof(utmp_ent->ut_name));
+      name[sizeof(utmp_ent->ut_name)] = '\0';
+      pw = getpwnam(name);
+      if (pw == NULL)
+	printf(" %19s", "        ???");
+      else
+	{
+	  char * const comma = strchr(pw->pw_gecos, ',');
+	  if (comma)
+	    *comma = '\0';
+	  
+	  /* FIXME: we don't yet convert '&' to username capitalized. */
+	  printf(" %-19.19s", pw->pw_gecos);
+	}
+    }
+
+  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
+	printf (" %-6s", "???");
+    }
+
+  /* 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.''  */
+  tm = UT_TIME_MEMBER (utmp_ent);
+  printf (" %-12.12s", ctime (&tm) + 4);
+
+#ifdef HAVE_UT_HOST
+  if (include_where && utmp_ent->ut_host[0])
+    {
+      extern char *canon_host ();
+      char ut_host[sizeof (utmp_ent->ut_host) + 1];
+      char *host = 0, *display = 0;
+
+      /* Copy the host name into UT_HOST, and ensure it's nul terminated. */
+      strncpy (ut_host, utmp_ent->ut_host, (int) sizeof (utmp_ent->ut_host));
+      ut_host[sizeof (utmp_ent->ut_host)] = '\0';
+
+      /* Look for an X display.  */
+      display = strrchr (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);
+    }
+#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)
+    {
+      printf(" %s", _("???\n"));
+      return;
+    }
+  else
+    {
+      char * const comma = strchr(pw->pw_gecos, ',');
+      if (comma)
+	*comma = '\0';
+	  
+      /* FIXME: we don't yet convert '&' to username capitalized. */
+      printf(" %s", pw->pw_gecos);
+    }
+
+  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);
+      
+      strcpy (project, pw->pw_dir);
+      strcat (project, baseproject);
+      
+      stream = fopen(project, "r");
+      if (stream)
+	{
+	  int 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);
+      
+      strcpy (plan, pw->pw_dir);
+      strcat (plan, baseplan);
+      
+      stream = fopen(plan, "r");
+      if (stream)
+	{
+	  int 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)
+{
+  STRUCT_UTMP * utmp_buf; /* This is only to get sizes... */
+
+  printf ("%-8s", _("Login"));
+  if (include_fullname)
+    printf (" %-19s", _("   Name"));
+  printf (" %-9s", _("TTY"));
+  if (include_idle)
+    printf (" %-6s", _("Idle"));
+  printf (" %-12s", _("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 (int n, const STRUCT_UTMP *utmp_buf,
+	      const int argc_names, char * const argv_names[])
+{
+  if (include_heading)
+    print_heading ();
+
+  while (n--)
+    {
+      if (utmp_buf->ut_name[0]
+#ifdef USER_PROCESS
+	  && utmp_buf->ut_type == USER_PROCESS
+#endif
+	 )
+	{
+	  if (argc_names)
+	    {
+	      int i;
+	      
+	      for (i = 0; i < argc_names; i++)
+		if (strncmp(utmp_buf->ut_name, argv_names[i],
+			    sizeof(utmp_buf->ut_name)) == 0)
+		  {
+		    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[])
+{
+  int n_users;
+  STRUCT_UTMP *utmp_buf;
+  int fail = read_utmp (filename, &n_users, &utmp_buf);
+
+  if (fail)
+    error (1, errno, "%s", filename);
+
+  scan_entries (n_users, utmp_buf, argc_names, argv_names);
+}
+
+static void
+long_pinky (const int argc_names, char * const argv_names[])
+{
+  int i;
+  
+  for (i=0; i < argc_names; i++)
+    print_long_entry (argv_names[i]);
+}
+
+
+static void
+usage (int status)
+{
+  if (status != 0)
+    fprintf (stderr, _("Try `%s --help' for more information.\n"),
+	     program_name);
+  else
+    {
+      printf (_("Usage: %s [OPTION]... [USER]...\n"), program_name);
+      printf (_("\
+\n\
+  -l              do long format output\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\
+  -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\
+      --help      display this help and exit\n\
+      --version   output version information and exit\n\
+\n\
+The utmp file will be %s.\n\
+"), UTMP_FILE);
+      puts (_("\nReport bugs to <sh-utils-bugs@gnu.ai.mit.edu>."));
+    }
+  exit (status);
+}
+
+int
+main (int argc, char * const argv[])
+{
+  int optc, longind;
+
+  program_name = argv[0];
+  setlocale (LC_ALL, "");
+  bindtextdomain (PACKAGE, LOCALEDIR);
+  textdomain (PACKAGE);
+
+  while ((optc = getopt_long (argc, argv, "sfwiqbhlp", longopts, &longind)) != -1)
+    {
+      switch (optc)
+	{
+	case 0:
+	  break;
+
+	case 's':
+	  do_short_format = 1;
+	  break;
+
+	case 'l':
+	  do_short_format = 0;
+	  break;
+
+	case 'f':
+	  include_heading = 0;
+	  break;
+
+	case 'w':
+	  include_fullname = 0;
+	  break;
+
+	case 'i':
+	  include_fullname = 0;
+#ifdef HAVE_UT_HOST
+	  include_where = 0;
+#endif
+	  break;
+
+	case 'q':
+	  include_fullname = 0;
+#ifdef HAVE_UT_HOST
+	  include_where = 0;
+#endif
+	  include_idle = 0;
+	  break;
+
+	case 'h':
+	  include_project = 0;
+	  break;
+	  
+	case 'p':
+	  include_plan = 0;
+	  break;
+	  
+	case 'b':
+	  include_home_and_shell = 0;
+	  break;
+	  
+	default:
+	  usage (1);
+	}
+    }
+
+  if (show_version)
+    {
+      printf ("pinky (%s) %s\n", GNU_PACKAGE, VERSION);
+      exit (0);
+    }
+
+  if (show_help)
+    usage (0);
+
+  if (do_short_format)
+    short_pinky (UTMP_FILE, argc-optind, argv+optind);
+  else
+    long_pinky (argc-optind, argv+optind);
+
+  exit (0);
+}