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8485 Remove set but unused variables in usr/src/cmd


   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*

  23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29 
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39 
  40 #pragma ident   "%Z%%M% %I%     %E% SMI"
  41 
  42 #include "talk.h"
  43 #include "ctl.h"
  44 #include <locale.h>
  45 #include <pwd.h>
  46 #include <sys/systeminfo.h>
  47 
  48 char *getlogin(), *ttyname(int);
  49 
  50 extern CTL_MSG msg;
  51 
  52 /*
  53  * Determine the local and remote user, tty, and machines
  54  */
  55 
  56 struct hostent *gethostbyname();
  57 
  58 void
  59 get_names(argc, argv)
  60 int argc;
  61 char *argv[];
  62 {
  63         char hostname[HOST_NAME_LENGTH + 1];
  64         char *rem_name;
  65         char *my_name;
  66         char *my_machine_name;
  67         char *rem_machine_name;
  68         char *my_tty;
  69         char *rem_tty;
  70         char *ptr;
  71         int name_length;
  72 
  73         if (argc < 2) {
  74                 fprintf(stderr,
  75                     "Usage: talk %s\n", gettext("address [terminal]"));
  76                 exit(1);
  77         }
  78         if (!isatty(0)) {
  79                 fprintf(stderr,
  80         gettext("Standard input must be a tty, not a pipe or a file\n"));
  81                 exit(1);
  82         }
  83 
  84         if (!isatty(1)) {
  85                 fprintf(stderr,
  86         gettext("Standard output must be a tty, not a pipe or a file\n"));
  87                 exit(1);
  88         }
  89 
  90         if ((my_name = getlogin()) == NULL) {
  91         struct passwd *pass = getpwuid(getuid());
  92         if (pass != NULL)
  93                 my_name = pass->pw_name;
  94         }
  95         if (my_name == NULL) {
  96                 fprintf(stderr,
  97         gettext("Who are you?  You have no entry in /etc/utmp!  Aborting..\n"));
  98                 exit(1);
  99         }
 100 
 101         name_length = HOST_NAME_LENGTH;
 102         (void) sysinfo(SI_HOSTNAME, hostname, name_length);
 103         my_machine_name = hostname;
 104 
 105         my_tty = strrchr(ttyname(0), '/') + 1;
 106 
 107         /*
 108          * check for, and strip out, the machine name of the target
 109          */
 110 
 111         for (ptr = argv[1]; *ptr != '\0' &&
 112                          *ptr != '@' &&
 113                          *ptr != ':' &&
 114                          *ptr != '!' &&
 115                          *ptr != '.'; ptr++) {
 116         }
 117 
 118         if (*ptr == '\0') {
 119 
 120                 /* this is a local to local talk */
 121 
 122         rem_name = argv[1];
 123         rem_machine_name = my_machine_name;
 124 
 125         } else {
 126 




   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2017 Gary Mills
  24  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27 
  28 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  29 /*        All Rights Reserved   */
  30 
  31 /*
  32  * University Copyright- Copyright (c) 1982, 1986, 1988
  33  * The Regents of the University of California
  34  * All Rights Reserved
  35  *
  36  * University Acknowledgment- Portions of this document are derived from
  37  * software developed by the University of California, Berkeley, and its
  38  * contributors.
  39  */
  40 


  41 #include "talk.h"
  42 #include "ctl.h"
  43 #include <locale.h>
  44 #include <pwd.h>
  45 #include <sys/systeminfo.h>
  46 
  47 char *getlogin(), *ttyname(int);
  48 
  49 extern CTL_MSG msg;
  50 
  51 /*
  52  * Determine the local and remote user, tty, and machines
  53  */
  54 
  55 struct hostent *gethostbyname();
  56 
  57 void
  58 get_names(argc, argv)
  59 int argc;
  60 char *argv[];
  61 {
  62         char hostname[HOST_NAME_LENGTH + 1];
  63         char *rem_name;
  64         char *my_name;
  65         char *my_machine_name;
  66         char *rem_machine_name;

  67         char *rem_tty;
  68         char *ptr;
  69         int name_length;
  70 
  71         if (argc < 2) {
  72                 fprintf(stderr,
  73                     "Usage: talk %s\n", gettext("address [terminal]"));
  74                 exit(1);
  75         }
  76         if (!isatty(0)) {
  77                 fprintf(stderr,
  78         gettext("Standard input must be a tty, not a pipe or a file\n"));
  79                 exit(1);
  80         }
  81 
  82         if (!isatty(1)) {
  83                 fprintf(stderr,
  84         gettext("Standard output must be a tty, not a pipe or a file\n"));
  85                 exit(1);
  86         }
  87 
  88         if ((my_name = getlogin()) == NULL) {
  89         struct passwd *pass = getpwuid(getuid());
  90         if (pass != NULL)
  91                 my_name = pass->pw_name;
  92         }
  93         if (my_name == NULL) {
  94                 fprintf(stderr,
  95         gettext("Who are you?  You have no entry in /etc/utmp!  Aborting..\n"));
  96                 exit(1);
  97         }
  98 
  99         name_length = HOST_NAME_LENGTH;
 100         (void) sysinfo(SI_HOSTNAME, hostname, name_length);
 101         my_machine_name = hostname;
 102 


 103         /*
 104          * check for, and strip out, the machine name of the target
 105          */
 106 
 107         for (ptr = argv[1]; *ptr != '\0' &&
 108                          *ptr != '@' &&
 109                          *ptr != ':' &&
 110                          *ptr != '!' &&
 111                          *ptr != '.'; ptr++) {
 112         }
 113 
 114         if (*ptr == '\0') {
 115 
 116                 /* this is a local to local talk */
 117 
 118         rem_name = argv[1];
 119         rem_machine_name = my_machine_name;
 120 
 121         } else {
 122