usr/src/cmd/mail/parse.c

   1 /*
   2  * CDDL HEADER START
   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 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"
  32
  33 #include "mail.h"
  34 /*
  35         Parse the command line.
  36         Return index of first non-option field (i.e. user)
  37 */
  38 int
  39 parse(int argc, char **argv)
  40 {
  41         int                     c;
  42         char                    *tmailsurr;
  43         static char             pn[] = "parse";
  44
  45         /*
  46                 "mail +" means to print in reverse order and is
  47                 equivalent to "mail -r"
  48         */
  49         if ((argc > 1) && (argv[1][0] == '+')) {
  50                 if (ismail) {
  51                         argv[1] = "-r";
  52                 } else {
  53                         goerr++;
  54                 }
  55         }
  56
  57         while ((c = getopt(argc, argv, "m:f:x:shrpPqeEdtT:w")) != EOF) {
  58                 switch(c) {
  59                 /*
  60                         Set debugging level...
  61                 */
  62                 case 'x':
  63                         debug = atoi(optarg);
  64                         orig_dbglvl = debug;
  65                         if (debug < 0) {
  66                                 /* Keep trace file even if successful */
  67                                 keepdbgfile = -1;
  68                                 debug = -debug;
  69                         }
  70                         break;
  71
  72                 /*
  73                         for backwards compatability with mailx...
  74                 */
  75                 case 's':
  76                         /* ignore this option */
  77                         break;
  78                 /*
  79                  * Deliver directly to a mailbox. Do Not go to sendmail
  80                  */
  81                 case 'd':
  82                         deliverflag = TRUE;
  83                         break;
  84
  85                 /*
  86                         do not print mail
  87                 */
  88                 case 'e':
  89                         if (ismail) {
  90                                 flge = 1;
  91                         } else {
  92                                 goerr++;
  93                         }
  94                         optcnt++;
  95                         break;
  96                 /*
  97                         do not print mail
  98                 */
  99                 case 'E':
 100                         if (ismail) {
 101                                 flgE = 1;
 102                         } else {
 103                                 goerr++;
 104                         }
 105                         optcnt++;
 106                         break;
 107                 /*
 108                  *      use alternate file as mailfile, when reading mail
 109                  *      use this from user when sending mail.
 110                  */
 111                 case 'f':
 112                         flgf = 1;
 113                         fromflag = TRUE;
 114                         mailfile = optarg;
 115                         strncpy(from_user, optarg, sizeof (from_user));
 116                         from_user[sizeof (from_user) - 1] = '\0';
 117                         optcnt++;
 118                         break;
 119
 120                 /*
 121                         Print headers first
 122                 */
 123                 case 'h':
 124                         if (ismail) {
 125                                 flgh = 1;
 126                         } else {
 127                                 goerr++;
 128                         }
 129                         optcnt++;
 130                         break;
 131
 132                 /*
 133                         print without prompting
 134                 */
 135                 case 'p':
 136                         if (ismail) {
 137                                 flgp++;
 138                         } else {
 139                                 goerr++;
 140                         }
 141                         optcnt++;
 142                         break;
 143
 144                 /*
 145                         override selective display default setting
 146                         when reading mail...
 147                 */
 148                 case 'P':
 149                         if (ismail) {
 150                                 flgP++;
 151                         }
 152                         optcnt++;
 153                         break;
 154
 155                 /*
 156                         terminate on deletes
 157                 */
 158                 case 'q':
 159                         if (ismail) {
 160                                 delflg = 0;
 161                         } else {
 162                                 goerr++;
 163                         }
 164                         optcnt++;
 165                         break;
 166
 167                 /*
 168                         print by first in, first out order
 169                 */
 170                 case 'r':
 171                         if (ismail) {
 172                                 flgr = 1;
 173                         } else {
 174                                 goerr++;
 175                         }
 176                         optcnt++;
 177                         break;
 178
 179                 /*
 180                         add To: line to letters
 181                 */
 182                 case 't':
 183                         flgt = 1;
 184                         optcnt++;
 185                         break;
 186
 187                 /*
 188                         don't wait on sends
 189                 */
 190                 case 'w':
 191                         flgw = 1;
 192                         break;
 193
 194                 /*
 195                         set message-type:
 196                 */
 197                 case 'm':
 198                         msgtype = optarg;
 199                         if (msgtype[0] == '\0' || msgtype[0] == '-') {
 200                                 goerr++;
 201                         } else {
 202                                 flgm = 1;
 203                         }
 204                         break;
 205
 206                 /*
 207                         bad option
 208                 */
 209                 case '?':
 210                         goerr++;
 211                         break;
 212                 }
 213         }
 214
 215
 216
 217         if (argc == optind) {
 218
 219             if (flgm) {
 220                 errmsg(E_SYNTAX,
 221                         "-m option used but no recipient(s) specified.");
 222                 goerr++;
 223             }
 224             if (flgt) {
 225                 errmsg(E_SYNTAX,
 226                         "-t option used but no recipient(s) specified.");
 227                 goerr++;
 228             }
 229             if (flgw) {
 230                 errmsg(E_SYNTAX,
 231                         "-w option used but no recipient(s) specified.");
 232                 goerr++;
 233             }
 234             if (flgf) {
 235                     if (mailfile[0] == '-') {
 236                             errmsg(E_SYNTAX,
 237                                    "Files names must not begin with '-'");
 238                             done(0);
 239                     }
 240                     if (!ismail)
 241                             goerr++;
 242             }
 243         }
 244
 245         if (ismail && (goerr > 0)) {
 246                 errmsg(E_SYNTAX,"Usage: [-ehpPqr] [-f file] [-x debuglevel]");
 247                 (void) fprintf (stderr, "or\t[-tw] [-m message_type] [-T file] [-x debuglevel] persons\n");
 248                 (void) fprintf (stderr, "or\t[-x debuglevel]\n");
 249                 done(0);
 250         }
 251
 252         return (optind);
 253 }