git.pond.sub.org Git - empserver/blob - src/lib/commands/rea.c

   1 /*
   2  *  Empire - A multi-player, client/server Internet based war game.
   3  *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                           Ken Stevens, Steve McClure
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  *  ---
  21  *
  22  *  See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
  23  *  related information and legal notices. It is expected that any future
  24  *  projects/authors will amend these files as needed.
  25  *
  26  *  ---
  27  *
  28  *  rea.c: Read telegrams
  29  *
  30  *  Known contributors to this file:
  31  *     Dave Pare
  32  *     Doug Hay, 1998
  33  *     Steve McClure, 1998-2000
  34  */
  35
  36
  37 #ifdef aix
  38 #define L_SET 0
  39 #endif /* aix */
  40
  41 #include "misc.h"
  42 #include "player.h"
  43 #include "nat.h"
  44 #include "file.h"
  45 #include "tel.h"
  46 #include "deity.h"
  47 #include "commands.h"
  48
  49 #include <stdio.h>
  50 #include <fcntl.h>
  51 #if !defined(_WIN32)
  52 #include <sys/file.h>
  53 #endif
  54
  55 int
  56 rea(void)
  57 {
  58         extern  s_char *telnames[];
  59         register s_char *p;
  60         register s_char *mbox;
  61         s_char mbox_buf[256]; /* Maximum path length */
  62         struct  telstr tgm;
  63         FILE   *telfp;
  64         int     teles;
  65         int     size;
  66         unsigned int     nbytes;
  67         s_char    buf[4096];
  68         int     lasttype;
  69         int     lastcnum;
  70         time_t  lastdate;
  71         int     header;
  72         int     filelen;
  73         s_char  kind[80];
  74         int     n;
  75         int     num = player->cnum;
  76         struct natstr *np = getnatp(player->cnum);
  77         time_t  now;
  78         time_t  then;
  79         time_t  delta;
  80         int     first = 1;
  81         int     readit;
  82
  83         bzero(kind,80);
  84         (void) time(&now);
  85
  86         if (*player->argp[0] == 'w') {
  87                 sprintf(kind,"announcement");
  88                 if (player->argp[1] && isdigit(*player->argp[1])) {
  89                         delta = days(atoi(player->argp[1]));
  90                         then = now - delta;
  91                 } else
  92                         then = np->nat_annotim;
  93                 mbox = annfil;
  94         } else {
  95                 sprintf(kind,"telegram");
  96                 if (player->god && player->argp[1] != 0) {
  97                         if ((n = natarg(player->argp[1], "")) < 0)
  98                                 return RET_SYN;
  99                         num = n;
 100                 }
 101                 mbox = mailbox(mbox_buf, num);
 102                 clear_telegram_is_new(player->cnum);
 103         }
 104
 105 #if !defined(_WIN32)
 106         if ((telfp = fopen(mbox, "r+")) == 0) {
 107 #else
 108         if ((telfp = fopen(mbox, "r+b")) == 0) {
 109 #endif
 110                 logerror("telegram file %s", mbox);
 111                 return RET_FAIL;
 112         }
 113         teles = 0;
 114         fseek(telfp, 0L, 0);
 115         size = fsize(fileno(telfp));
 116 more:
 117         lastdate = 0;
 118         lastcnum = -1;
 119         lasttype = -1;
 120         while (fread((s_char *) &tgm, sizeof(tgm), 1, telfp) == 1) {
 121                 readit = 1;
 122                 if (tgm.tel_length < 0) {
 123                         logerror("bad telegram file header in %s", mbox);
 124                         break;
 125                 }
 126                 if (tgm.tel_type < 0 || tgm.tel_type > TEL_LAST) {
 127                         pr("Bad telegram header.  Skipping telegram...\n");
 128                         readit = 0;
 129                         goto skip;
 130                 }
 131                 if (*kind == 'a') {
 132                         if (!player->god &&
 133                             (getrejects(tgm.tel_from, np) & REJ_ANNO)) {
 134                                 readit = 0;
 135                                 goto skip;
 136                         }
 137                         if (tgm.tel_date < then) {
 138                                 readit = 0;
 139                                 goto skip;
 140                         }
 141                 }
 142                 if (first && *kind == 'a') {
 143                         pr("\nAnnouncements since %s", ctime(&then));
 144                         first = 0;
 145                 }
 146                 header = 0;
 147                 if (tgm.tel_type != lasttype || tgm.tel_from != lastcnum)
 148                         header++;
 149                 if (abs((int)(tgm.tel_date - (long)lastdate)) > TEL_SECONDS)
 150                         header++;
 151                 if (header) {
 152                         pr("\n> ");
 153                         lastcnum = tgm.tel_from;
 154                         lasttype = tgm.tel_type;
 155                         pr("%s ", telnames[(int)tgm.tel_type]);
 156                         if ((tgm.tel_type == TEL_NORM) ||
 157                             (tgm.tel_type == TEL_ANNOUNCE)) {
 158                                 pr("from %s, (#%d)",
 159                                        cname(tgm.tel_from),
 160                                        tgm.tel_from);
 161                         }
 162                         if (tgm.tel_type == TEL_BULLETIN){
 163                                 pr("from %s, (#%d)", cname(tgm.tel_from), tgm.tel_from);
 164                         }
 165                         pr("  dated %s", ctime(&tgm.tel_date));
 166                         lastdate = tgm.tel_date;
 167                 }
 168                 teles++;
 169         skip:
 170                 while (tgm.tel_length > 0) {
 171                         nbytes = tgm.tel_length;
 172                         if (nbytes > sizeof(buf)-1)
 173                                 nbytes = sizeof(buf)-1;
 174                         (void) fread(buf, sizeof(s_char), nbytes, telfp);
 175                         buf[nbytes] = 0;
 176                         if (readit)
 177                                 prnf(buf);
 178                         tgm.tel_length -= nbytes;
 179                 }
 180         }
 181         p=NULL;
 182         if (teles > 0 && player->cnum == num) { /* } */
 183                 pr("\n");
 184                 if (teles == 1) {
 185                         if (chance(0.25))
 186                                 p = "Forget this one? ";
 187                         else
 188                                 p = "Shall I burn it? ";
 189                 } else {
 190                         if (chance(0.25))
 191                                 p = "Into the shredder, boss? ";
 192                         else
 193                                 p = "Can I throw away these old love letters? ";
 194                 }
 195                 if (player->god && *kind == 't')
 196                         p = getstarg(player->argp[2], p, buf);
 197                 else
 198                         p = getstarg(player->argp[1], p, buf);
 199                 if (p && *p == 'y') {
 200                         if ((filelen = fsize(fileno(telfp))) > size) {
 201                                 pr("Wait a sec!  A new %s has arrived...\n", kind);
 202                                 /* force stdio to re-read tel file */
 203                                 (void) fflush(telfp);
 204 #if !defined(_WIN32)
 205                                 (void) fseek(telfp, (long)size, L_SET);
 206 #else
 207                                 (void) fseek(telfp, (long)size, SEEK_SET);
 208 #endif
 209                                 size = filelen;
 210                                 (void) time(&now);
 211                                 goto more;
 212                         }
 213                         if (*kind == 'a') {
 214                                 np->nat_annotim = now;
 215                                 putnat(np);
 216                         } else {
 217                           /* Here, we just re-open the file for "w" only,
 218                              and that will wipe the file clean automatically */
 219                           (void)fclose(telfp);
 220 #if !defined(_WIN32)
 221                           telfp = fopen((char *)mbox, "w");
 222 #else
 223                           telfp = fopen((char *)mbox, "wb");
 224 #endif
 225                         }
 226                 }
 227         }
 228         if (teles <= 0) {
 229                 if(player->cnum == num)
 230                         pr("No %ss for you at the moment...\n",kind);
 231                 else
 232                         pr("No %ss for %s at the moment...\n", kind,
 233                                cname(num));
 234         }
 235         (void) fclose(telfp);
 236         if (np->nat_flags & NF_INFORM) {
 237                 pr_inform(player, "\n");
 238                 np->nat_tgms = 0;
 239                 putnat(np);
 240         }
 241         return RET_OK;
 242 }
 243