citadel/messages.c

   1 /*
   2  * Citadel/UX message support routines
   3  * see copyright.doc for copyright information
   4  */
   5
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <sys/types.h>
   9 #include <fcntl.h>
  10 #include <stdio.h>
  11 #include <ctype.h>
  12 #include <string.h>
  13 #include <time.h>
  14 #include <signal.h>
  15 #include <errno.h>
  16 #include <sys/wait.h>
  17 #include <sys/stat.h>
  18 #include "citadel.h"
  19
  20 #define MAXWORDBUF 256
  21 #define MAXMSGS 512
  22
  23 struct cittext {
  24         struct cittext *next;
  25         char text[MAXWORDBUF];
  26         };
  27
  28 long finduser();
  29 char inkey();
  30 void sttybbs();
  31 int struncmp();
  32 int fmout();
  33 int haschar();
  34 int checkpagin();
  35 void getline();
  36 void formout();
  37 int yesno();
  38 void newprompt();
  39 int file_checksum();
  40 void color();
  41 void do_edit();
  42
  43 char reply_to[512];
  44 long msg_arr[MAXMSGS];
  45 int num_msgs;
  46 extern char room_name[];
  47 extern unsigned room_flags;
  48 extern long highest_msg_read;
  49 extern struct CtdlServInfo serv_info;
  50 extern char temp[];
  51 extern char temp2[];
  52 extern int screenwidth;
  53 extern int screenheight;
  54 extern long maxmsgnum;
  55 extern char is_mail;
  56 extern char is_aide;
  57 extern char is_room_aide;
  58 extern char fullname[];
  59 extern char axlevel;
  60 extern unsigned userflags;
  61 extern char sigcaught;
  62 extern char editor_path[];
  63 extern char printcmd[];
  64
  65 extern int editor_pid;
  66
  67 int lines_printed;
  68
  69 void ka_sigcatch(void) {
  70         char buf[256];
  71         alarm(S_KEEPALIVE);
  72         signal(SIGALRM, (void *)ka_sigcatch);
  73         serv_puts("NOOP");
  74         serv_gets(buf);
  75         }
  76
  77
  78 /*
  79  * server keep-alive version of wait() (needed for external editor)
  80  */
  81 pid_t ka_wait(pid_t *kstatus)
  82 {
  83         pid_t p;
  84
  85         alarm(S_KEEPALIVE);
  86         signal(SIGALRM, (void *)ka_sigcatch);
  87         do {
  88                 errno = 0;
  89                 p = wait(kstatus);
  90                 } while (errno==EINTR);
  91         signal(SIGALRM,SIG_IGN);
  92         alarm(0);
  93         return(p);
  94         }
  95
  96
  97 /*
  98  * version of system() that uses ka_wait()
  99  */
 100 int ka_system(char *shc)
 101 {
 102         pid_t childpid;
 103         pid_t waitpid;
 104         int retcode;
 105
 106         childpid = fork();
 107         if (childpid < 0) {
 108                 color(1);
 109                 perror("Cannot fork");
 110                 color(7);
 111                 return((pid_t)childpid);
 112                 }
 113
 114         if (childpid == 0) {
 115                 execlp("/bin/sh","sh","-c",shc,NULL);
 116                 exit(127);
 117                 }
 118
 119         if (childpid > 0) {
 120                 do {
 121                         waitpid = ka_wait(&retcode);
 122                         } while (waitpid != childpid);
 123                 return(retcode);
 124                 }
 125
 126         return(-1);
 127         }
 128
 129
 130
 131 /*
 132  * add a newline to the buffer...
 133  */
 134 void add_newline(struct cittext *textlist)
 135 {
 136         struct cittext *ptr;
 137
 138         ptr=textlist;
 139         while (ptr->next != NULL) ptr = ptr->next;
 140
 141         while (ptr->text[strlen(ptr->text)-1]==32)
 142                 ptr->text[strlen(ptr->text)-1] = 0;
 143         /* strcat(ptr->text,"\n"); */
 144
 145         ptr->next = (struct cittext *)
 146                 malloc(sizeof(struct cittext));
 147         ptr = ptr->next;
 148         ptr->next = NULL;
 149         strcpy(ptr->text,"");
 150         }
 151
 152
 153 /*
 154  * add a word to the buffer...
 155  */
 156 void add_word(struct cittext *textlist, char *wordbuf)
 157 {
 158         struct cittext *ptr;
 159
 160
 161         ptr=textlist;
 162         while (ptr->next != NULL) ptr = ptr->next;
 163
 164         if (3+strlen(ptr->text)+strlen(wordbuf) > screenwidth) {
 165                 ptr->next = (struct cittext *)
 166                         malloc(sizeof(struct cittext));
 167                 ptr = ptr->next;
 168                 ptr->next = NULL;
 169                 strcpy(ptr->text,"");
 170                 }
 171
 172         strcat(ptr->text,wordbuf);
 173         strcat(ptr->text," ");
 174         }
 175
 176
 177 /*
 178  * begin editing of an opened file pointed to by fp, beginning at position pos.
 179  */
 180 void citedit(FILE *fp, long int base_pos)
 181 {
 182         int a,prev,finished,b,last_space;
 183         int appending = 0;
 184         struct cittext *textlist = NULL;
 185         struct cittext *ptr;
 186         char wordbuf[MAXWORDBUF];
 187         char buf[256];
 188         long last_server_msg,now;
 189
 190         /*
 191          * we're going to keep track of the last time we talked to
 192          * the server, so we can periodically send keep-alive messages
 193          * out so it doesn't time out.
 194          */
 195         time(&last_server_msg);
 196
 197         /* first, load the text into the buffer */
 198         fseek(fp,base_pos,0);
 199         textlist = (struct cittext *)malloc(sizeof(struct cittext));
 200         textlist->next = NULL;
 201         strcpy(textlist->text,"");
 202
 203         strcpy(wordbuf,"");
 204         prev = (-1);
 205         while (a=getc(fp), a>=0) {
 206                 appending = 1;
 207                 if ((a==32)||(a==9)||(a==13)||(a==10)) {
 208                         add_word(textlist,wordbuf);
 209                         strcpy(wordbuf,"");
 210                         if ((prev==13)||(prev==10)) {
 211                                 add_word(textlist,"\n");
 212                                 add_newline(textlist);
 213                                 add_word(textlist,"");
 214                                 }
 215                         }
 216                 else {
 217                         wordbuf[strlen(wordbuf)+1] = 0;
 218                         wordbuf[strlen(wordbuf)] = a;
 219                         }
 220                 if (strlen(wordbuf)+3 > screenwidth) {
 221                         add_word(textlist,wordbuf);
 222                         strcpy(wordbuf,"");
 223                         }
 224                 prev = a;
 225                 }
 226
 227         /* get text */
 228         finished = 0;
 229         prev = (appending ? 13 : (-1));
 230         strcpy(wordbuf,"");
 231         do {
 232                 a=inkey();
 233                 if (a==10) a=13;
 234                 if (a==9) a=32;
 235                 if (a==127) a=8;
 236                 if ((a==32)&&(prev==13)) {
 237                         add_word(textlist,"\n");
 238                         add_newline(textlist);
 239                         }
 240                 if (a==8) {
 241                         if (strlen(wordbuf)>0) {
 242                                 wordbuf[strlen(wordbuf)-1] = 0;
 243                                 putc(8,stdout);
 244                                 putc(32,stdout);
 245                                 putc(8,stdout);
 246                                 }
 247                         }
 248                 else if (a==13) {
 249                         printf("\n");
 250                         if (strlen(wordbuf)==0) finished = 1;
 251                         else {
 252                                 for (b=0; b<strlen(wordbuf); ++b)
 253                                    if (wordbuf[b]==32) {
 254                                         wordbuf[b]=0;
 255                                         add_word(textlist,wordbuf);
 256                                         strcpy(wordbuf,&wordbuf[b+1]);
 257                                         b=0;
 258                                         }
 259                                 add_word(textlist,wordbuf);
 260                                 strcpy(wordbuf,"");
 261                                 }
 262                         }
 263                 else {
 264                         putc(a,stdout);
 265                         wordbuf[strlen(wordbuf)+1] = 0;
 266                         wordbuf[strlen(wordbuf)] = a;
 267                         }
 268                 if ((strlen(wordbuf)+3) > screenwidth) {
 269                         last_space = (-1);
 270                         for (b=0; b<strlen(wordbuf); ++b)
 271                                 if (wordbuf[b]==32) last_space = b;
 272                         if (last_space>=0) {
 273                                 for (b=0; b<strlen(wordbuf); ++b)
 274                                    if (wordbuf[b]==32) {
 275                                         wordbuf[b]=0;
 276                                         add_word(textlist,wordbuf);
 277                                         strcpy(wordbuf,&wordbuf[b+1]);
 278                                         b=0;
 279                                         }
 280                                 for (b=0; b<strlen(wordbuf); ++b) {
 281                                         putc(8,stdout);
 282                                         putc(32,stdout);
 283                                         putc(8,stdout);
 284                                         }
 285                                 printf("\n%s",wordbuf);
 286                                 }
 287                         else {
 288                                 add_word(textlist,wordbuf);
 289                                 strcpy(wordbuf,"");
 290                                 printf("\n");
 291                                 }
 292                         }
 293                 prev = a;
 294
 295                 /* this check implements the server keep-alive */
 296                 time(&now);
 297                 if ( (now - last_server_msg) > S_KEEPALIVE ) {
 298                         serv_puts("NOOP");
 299                         serv_gets(buf);
 300                         last_server_msg = now;
 301                         }
 302
 303                 } while (finished==0);
 304
 305         /* write the buffer back to disk */
 306         fseek(fp,base_pos,0);
 307         for (ptr=textlist; ptr!=NULL; ptr=ptr->next) {
 308                 fprintf(fp,"%s",ptr->text);
 309                 }
 310         putc(10,fp);
 311         putc(0,fp);
 312
 313         /* and deallocate the memory we used */
 314         while (textlist!=NULL) {
 315                 ptr=textlist->next;
 316                 free(textlist);
 317                 textlist=ptr;
 318                 }
 319         }
 320
 321
 322 int read_message(long int num, char pagin)      /* Read a message from the server */
 323                                 /* message number */
 324                 /* 0 = normal read, 1 = read with pagination, 2 = header */
 325 {
 326         char buf[256];
 327         char m_subject[256];
 328         char from[256];
 329         long now;
 330         struct tm *tm;
 331         int format_type = 0;
 332         int fr = 0;
 333         int nhdr = 0;
 334
 335         sigcaught = 0;
 336         sttybbs(1);
 337
 338         sprintf(buf,"MSG0 %ld|%d",num,(pagin==READ_HEADER ? 1 : 0));
 339         serv_puts(buf);
 340         serv_gets(buf);
 341         if (buf[0]!='1') {
 342                 printf("*** msg #%ld: %s\n",num,buf);
 343                 ++lines_printed;
 344                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 345                 sttybbs(0);
 346                 return(0);
 347                 }
 348
 349         strcpy(m_subject,"");
 350         printf("\n");
 351         ++lines_printed;
 352         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 353         printf(" ");
 354         if (pagin == 1) color(3);
 355
 356         if (pagin==2) {
 357                 while(serv_gets(buf), strcmp(buf,"000")) {
 358                         if (buf[4]=='=') {
 359                                 printf("%s\n",buf);
 360                                 ++lines_printed;
 361                                 lines_printed =
 362                                         checkpagin(lines_printed,
 363                                                 pagin,screenheight);
 364                                 }
 365                         }
 366                 sttybbs(0);
 367                 return(0);
 368                 }
 369
 370         strcpy(reply_to,"nobody...xxxxx");
 371         while(serv_gets(buf), struncmp(buf,"text",4)) {
 372                 if (!struncmp(buf,"nhdr=yes",8)) nhdr=1;
 373                 if (!struncmp(buf,"from=",5)) {
 374                         strcpy(from,&buf[5]);
 375                         }
 376                 if (nhdr==1) buf[0]='_';
 377                 if (!struncmp(buf,"type=",5))
 378                         format_type=atoi(&buf[5]);
 379                 if (!struncmp(buf,"from=",5)) {
 380                         printf("from %s ",&buf[5]);
 381                         }
 382                 if (!struncmp(buf,"subj=",5))
 383                         strcpy(m_subject,&buf[5]);
 384                 if ((!struncmp(buf,"hnod=",5))
 385                    && (strucmp(&buf[5],serv_info.serv_humannode)))
 386                         printf("(%s) ",&buf[5]);
 387                 if ((!struncmp(buf,"room=",5))
 388                    && (strucmp(&buf[5],room_name)))
 389                         printf("in %s> ",&buf[5]);
 390
 391                 if (!struncmp(buf,"node=",5)) {
 392                         if ( (room_flags&QR_NETWORK)
 393                            || ((strucmp(&buf[5],serv_info.serv_nodename)
 394                            &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
 395                                 {
 396                                 printf("@%s ",&buf[5]);
 397                                 }
 398                         if ((!strucmp(&buf[5],serv_info.serv_nodename))
 399                            ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
 400                                 {
 401                                 strcpy(reply_to,from);
 402                                 }
 403                         else {
 404                                 sprintf(reply_to,"%s @ %s",from,&buf[5]);
 405                                 }
 406                         }
 407
 408                 if (!struncmp(buf,"rcpt=",5))
 409                         printf("to %s ",&buf[5]);
 410                 if (!struncmp(buf,"time=",5)) {
 411                         now=atol(&buf[5]);
 412                         tm=(struct tm *)localtime(&now);
 413                         strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
 414                         strcpy(&buf[16],&buf[19]);
 415                         printf("%s ",&buf[4]);
 416                         }
 417                 }
 418
 419         if (nhdr==1) {
 420                 if (!is_room_aide) {
 421                         printf(" ****");
 422                         }
 423                 else {
 424                         printf(" %s",from);
 425                         }
 426                 }
 427         printf("\n");
 428         if (pagin == 1 ) color(2);
 429         ++lines_printed;
 430         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 431
 432         if (strlen(m_subject)>0) {
 433                 printf("Subject: %s\n",m_subject);
 434                 ++lines_printed;
 435                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 436                 }
 437
 438         if (format_type == 0) {
 439                 fr=fmout(screenwidth,NULL,
 440                         ((pagin==1) ? 1 : 0),
 441                         screenheight,(-1),1);
 442                 }
 443         else {
 444                 while(serv_gets(buf), strcmp(buf,"000")) {
 445                         if (sigcaught==0) {
 446                                 printf("%s\n",buf);
 447                                 lines_printed = lines_printed + 1 +
 448                                         (strlen(buf)/screenwidth);
 449                                 lines_printed =
 450                                         checkpagin(lines_printed,pagin,screenheight);
 451                                 }
 452                         }
 453                 fr = sigcaught;
 454                 }
 455         printf("\n");
 456         ++lines_printed;
 457         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 458
 459         if (pagin == 1) color(7);
 460         sttybbs(0);
 461         return(fr);
 462         }
 463
 464 /*
 465  * replace string function for the built-in editor
 466  */
 467 void replace_string(char *filename, long int startpos)
 468 {
 469         char buf[512];
 470         char srch_str[128];
 471         char rplc_str[128];
 472         FILE *fp;
 473         int a;
 474         long rpos,wpos;
 475         char *ptr;
 476         int substitutions = 0;
 477         long msglen = 0L;
 478
 479         printf("Enter text to be replaced:\n: ");
 480         getline(srch_str,128);
 481         if (strlen(srch_str)==0) return;
 482
 483         printf("Enter text to replace it with:\n: ");
 484         getline(rplc_str,128);
 485
 486         fp=fopen(filename,"r+");
 487         if (fp==NULL) return;
 488
 489         wpos=startpos;
 490         fseek(fp,startpos,0);
 491         strcpy(buf,"");
 492         while (a=getc(fp), a>0) {
 493                 ++msglen;
 494                 buf[strlen(buf)+1] = 0;
 495                 buf[strlen(buf)] = a;
 496                 if ( strlen(buf) >= strlen(srch_str) ) {
 497                         ptr=&buf[strlen(buf)-strlen(srch_str)];
 498                         if (!struncmp(ptr,srch_str,strlen(srch_str))) {
 499                                 strcpy(ptr,rplc_str);
 500                                 ++substitutions;
 501                                 }
 502                         }
 503                 if (strlen(buf)>384) {
 504                         rpos=ftell(fp);
 505                         fseek(fp,wpos,0);
 506                         fwrite((char *)buf,128,1,fp);
 507                         strcpy(buf,&buf[128]);
 508                         wpos = ftell(fp);
 509                         fseek(fp,rpos,0);
 510                         }
 511                 }
 512         fseek(fp,wpos,0);
 513         if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
 514         putc(0,fp);
 515         fclose(fp);
 516         printf("<R>eplace made %d substitution(s).\n\n",substitutions);
 517         }
 518
 519
 520 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode)
 521                         /* temporary file name */
 522                         /* NULL if it's not mail */
 523                         /* see MES_ types in header file */
 524
 525
 526 {
 527         FILE *fp;
 528         int a,b,e_ex_code;
 529         long now,beg;
 530         char datestr[64];
 531         int cksum = 0;
 532
 533         if (mode==2) if (strlen(editor_path)==0) {
 534                 printf("*** No editor available, using built-in editor\n");
 535                 mode=0;
 536                 }
 537
 538         time(&now);
 539         strcpy(datestr,asctime(localtime(&now)));
 540         datestr[strlen(datestr)-1] = 0;
 541
 542         if (room_flags & QR_ANONONLY) {
 543                 printf(" ****");
 544                 }
 545         else {
 546                 printf(" %s from %s",datestr,fullname);
 547                 if (strlen(recipient)>0) printf(" to %s",recipient);
 548                 }
 549         printf("\n");
 550
 551         beg = 0L;
 552
 553         if (mode==1) printf("(Press ctrl-d when finished)\n");
 554         if (mode==0) {
 555                 fp=fopen(filename,"r");
 556                 if (fp!=NULL) {
 557                         fmout(screenwidth,fp,0,screenheight,0,0);
 558                         beg = ftell(fp);
 559                         fclose(fp);
 560                         }
 561                 else {
 562                         fp=fopen(filename,"w");
 563                         fclose(fp);
 564                         }
 565                 }
 566
 567 ME1:    switch(mode) {
 568
 569            case 0:
 570                 fp=fopen(filename,"r+");
 571                 citedit(fp,beg);
 572                 fclose(fp);
 573                 goto MECR;
 574                 break;
 575
 576            case 1:
 577                 fp=fopen(filename,"w");
 578                 do {
 579                         a=inkey(); if (a==255) a=32;
 580                         if (a==13) a=10;
 581                         if (a!=4) {
 582                                 putc(a,fp);
 583                                 putc(a,stdout);
 584                                 }
 585                         if (a==10) putc(13,stdout);
 586                         } while(a!=4);
 587                 fclose(fp);
 588                 break;
 589
 590            case 2:
 591                 e_ex_code = 1;  /* start with a failed exit code */
 592                 editor_pid=fork();
 593                 cksum = file_checksum(filename);
 594                 if (editor_pid==0) {
 595                         chmod(filename,0600);
 596                         sttybbs(SB_RESTORE);
 597                         execlp(editor_path,editor_path,filename,NULL);
 598                         exit(1);
 599                         }
 600                 if (editor_pid>0) do {
 601                         e_ex_code = 0;
 602                         b=ka_wait(&e_ex_code);
 603                         } while((b!=editor_pid)&&(b>=0));
 604                 editor_pid = (-1);
 605                 sttybbs(0);
 606                 break;
 607                 }
 608
 609 MECR:   if (mode==2) {
 610                 if (file_checksum(filename) == cksum) {
 611                         printf("*** Aborted message.\n");
 612                         e_ex_code = 1;
 613                         }
 614                 if (e_ex_code==0) goto MEFIN;
 615                 goto MEABT2;
 616                 }
 617 MECR1:  printf("Entry cmd (? for options) -> ");
 618 MECR2:  b=inkey();
 619         if (b==NEXT_KEY) b='n';
 620         if (b==STOP_KEY) b='s';
 621         b=(b&127); b=tolower(b);
 622         if (b=='?') {
 623                 printf("Help\n");
 624                 formout("saveopt");
 625                 goto MECR1;
 626                 }
 627         if (b=='a') { printf("Abort\n");        goto MEABT;     }
 628         if (b=='c') { printf("Continue\n");     goto ME1;       }
 629         if (b=='s') { printf("Save message\n"); goto MEFIN;     }
 630         if (b=='p') {
 631                 printf("Print formatted\n");
 632                 printf(" %s from %s",datestr,fullname);
 633                 if (strlen(recipient)>0) printf(" to %s",recipient);
 634                 printf("\n");
 635                 fp=fopen(filename,"r");
 636                 if (fp!=NULL) {
 637                         fmout(screenwidth,fp,
 638                                 ((userflags & US_PAGINATOR) ? 1 : 0),
 639                                 screenheight,0,0);
 640                         beg = ftell(fp);
 641                         fclose(fp);
 642                         }
 643                 goto MECR;
 644                 }
 645         if (b=='r') {
 646                 printf("Replace string\n");
 647                 replace_string(filename,0L);
 648                 goto MECR;
 649                 }
 650         if (b=='h') {
 651                 printf("Hold message\n");
 652                 return(2);
 653                 }
 654         goto MECR2;
 655
 656 MEFIN:  return(0);
 657
 658 MEABT:  printf("Are you sure? ");
 659         if (yesno()==0) goto ME1;
 660 MEABT2: unlink(filename);
 661         return(2);
 662         }
 663
 664 /*
 665  * transmit message text to the server
 666  */
 667 void transmit_message(FILE *fp)
 668 {
 669         char buf[256];
 670         int ch,a;
 671
 672         strcpy(buf,"");
 673         while (ch=getc(fp), (ch>=0)) {
 674                 if (ch==10) {
 675                         if (!strcmp(buf,"000")) strcpy(buf,">000");
 676                         serv_puts(buf);
 677                         strcpy(buf,"");
 678                         }
 679                 else {
 680                         a = strlen(buf);
 681                         buf[a+1] = 0;
 682                         buf[a] = ch;
 683                         if ((ch==32)&&(strlen(buf)>200)) {
 684                                 buf[a]=0;
 685                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 686                                 serv_puts(buf);
 687                                 strcpy(buf,"");
 688                                 }
 689                         if (strlen(buf)>250) {
 690                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 691                                 serv_puts(buf);
 692                                 strcpy(buf,"");
 693                                 }
 694                         }
 695                 }
 696         serv_puts(buf);
 697         }
 698
 699
 700
 701 /*
 702  * entmsg()  -  edit and create a message
 703  *              returns 0 if message was saved
 704  */
 705 int entmsg(int is_reply, int c)
 706                         /* nonzero if this was a <R>eply command */
 707        {                /* */
 708         char buf[300];
 709         char cmd[256];
 710         int a,b;
 711         int need_recp = 0;
 712         int mode;
 713         long highmsg;
 714         FILE *fp;
 715
 716         if (c>0) mode=1;
 717         else mode=0;
 718
 719         sprintf(cmd,"ENT0 0||0|%d",mode);
 720         serv_puts(cmd);
 721         serv_gets(cmd);
 722
 723         if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
 724                 printf("%s\n",&cmd[4]);
 725                 return(1);
 726                 }
 727         need_recp = 0;
 728         if (!strncmp(cmd,"570",3)) need_recp = 1;
 729
 730         if ((userflags & US_EXPERT) == 0) formout("entermsg");
 731
 732         strcpy(buf,"");
 733         if (need_recp==1) {
 734                 if (axlevel>=2) {
 735                         if (is_reply) {
 736                                 strcpy(buf,reply_to);
 737                                 }
 738                         else {
 739                                 printf("Enter recipient: ");
 740                                 getline(buf,299);
 741                                 if (strlen(buf)==0) return(1);
 742                                 }
 743                         }
 744                 else strcpy(buf,"sysop");
 745                 }
 746
 747         b=0;
 748         if (room_flags&QR_ANON2) {
 749                 printf("Anonymous (Y/N)? ");
 750                 if (yesno()==1) b=1;
 751                 }
 752
 753 /* if it's mail, we've got to check the validity of the recipient... */
 754         if (strlen(buf)>0) {
 755                 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
 756                 serv_puts(cmd);
 757                 serv_gets(cmd);
 758                 if (cmd[0]!='2') {
 759                         printf("%s\n",&cmd[4]);
 760                         return(1);
 761                         }
 762                 }
 763
 764 /* learn the number of the newest message in in the room, so we can tell
 765  * upon saving whether someone else has posted too
 766  */
 767         num_msgs = 0;
 768         serv_puts("MSGS LAST|1");
 769         serv_gets(cmd);
 770         if (cmd[0]!='1') {
 771                 printf("%s\n",&cmd[5]);
 772                 }
 773         else {
 774                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 775                         msg_arr[num_msgs++] = atol(cmd);
 776                         }
 777                 }
 778
 779 /* now put together the message */
 780         a=make_message(temp,buf,b,0,c);
 781         if (a!=0)
 782         {
 783            return(2);
 784         }
 785
 786 /* and send it to the server */
 787         sprintf(cmd,"ENT0 1|%s|%d|%d",buf,b,mode);
 788         serv_puts(cmd);
 789         serv_gets(cmd);
 790         if (cmd[0]!='4') {
 791                 printf("%s\n",&cmd[4]);
 792                 return(1);
 793                 }
 794         fp=fopen(temp,"r");
 795         if (fp!=NULL) {
 796                 transmit_message(fp);
 797                 fclose(fp);
 798                 }
 799         serv_puts("000");
 800         unlink(temp);
 801
 802         highmsg = msg_arr[num_msgs - 1];
 803         num_msgs = 0;
 804         serv_puts("MSGS NEW");
 805         serv_gets(cmd);
 806         if (cmd[0]!='1') {
 807                 printf("%s\n",&cmd[5]);
 808                 }
 809         else {
 810                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 811                         msg_arr[num_msgs++] = atol(cmd);
 812                         }
 813                 }
 814
 815         /* get new highest message number in room to set lrp for goto... */
 816         maxmsgnum = msg_arr[num_msgs - 1];
 817
 818         /* now see if anyone else has posted in here */
 819         b=(-1);
 820         for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
 821
 822         /* in the Mail> room, this algorithm always counts one message
 823          * higher than in public rooms, so we decrement it by one */
 824         if (need_recp) --b;
 825
 826         if (b==1) printf(
 827 "*** 1 additional message has been entered in this room by another user.\n");
 828         if (b>1) printf(
 829 "*** %d additional messages have been entered in this room by other users.\n",b);
 830
 831         return(0);
 832         }
 833
 834 void process_quote(void) {      /* do editing on quoted file */
 835 FILE *qfile,*tfile;
 836 char buf[128];
 837 int line,qstart,qend;
 838
 839         qfile = fopen(temp2,"r");
 840         line = 0;
 841         fgets(buf,128,qfile);
 842         while (fgets(buf,128,qfile)!=NULL) {
 843                 printf("%2d %s",++line,buf);
 844                 }
 845         printf("Begin quoting at [ 1] : ");
 846         getline(buf,3);
 847         qstart = (buf[0]==0) ? (1) : atoi(buf);
 848         printf("  End quoting at [%d] : ",line);
 849         getline(buf,3);
 850         qend = (buf[0]==0) ? (line) : atoi(buf);
 851         rewind(qfile);
 852         line=0;
 853         fgets(buf,128,qfile);
 854         tfile=fopen(temp,"w");
 855         while(fgets(buf,128,qfile)!=NULL) {
 856                 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
 857                 }
 858         fprintf(tfile," \n");
 859         fclose(qfile);
 860         fclose(tfile);
 861         unlink(temp2);
 862         chmod(temp,0666);
 863         }
 864
 865
 866 void readmsgs(int c, int rdir, int q)   /* read contents of a room */
 867                 /* 0=Read all  1=Read new  2=Read old 3=Read last q */
 868                 /* 1=Forward (-1)=Reverse */
 869                 /* Number of msgs to read (if c==3) */
 870         {
 871         int a,b,e,f,g,start;
 872         int hold_sw = 0;
 873         char arcflag = 0;
 874         char quotflag = 0;
 875         char prtfile[16];
 876         char pagin;
 877         char cmd[256];
 878         char targ[20];
 879
 880         signal(SIGINT,SIG_IGN);
 881         signal(SIGQUIT,SIG_IGN);
 882
 883         if (c<0) b=(MAXMSGS-1);
 884         else b=0;
 885
 886         sprintf(prtfile,"/tmp/CPrt%d",getpid());
 887
 888         num_msgs = 0;
 889         strcpy(cmd,"MSGS ");
 890         switch(c) {
 891                 case 0: strcat(cmd,"ALL");
 892                         break;
 893                 case 1: strcat(cmd,"NEW");
 894                         break;
 895                 case 2: strcat(cmd,"OLD");
 896                         break;
 897                 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
 898                         break;
 899                 }
 900         serv_puts(cmd);
 901         serv_gets(cmd);
 902         if (cmd[0]!='1') {
 903                 printf("%s\n",&cmd[5]);
 904                 }
 905         else {
 906                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 907                         msg_arr[num_msgs++] = atol(cmd);
 908                         }
 909                 }
 910
 911         lines_printed = 0;
 912
 913         /* this loop cycles through each message... */
 914         start = ( (rdir==1) ? 0 : (num_msgs-1) );
 915         for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
 916                 while (msg_arr[a]==0L) {
 917                         a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
 918                         }
 919
 920 RAGAIN:         pagin=((arcflag==0)&&(quotflag==0)&&
 921                         (userflags & US_PAGINATOR)) ? 1 : 0;
 922
 923         /* if we're doing a quote, set the screenwidth to 72 temporarily */
 924                 if (quotflag) {
 925                         hold_sw = screenwidth;
 926                         screenwidth = 72;
 927                         }
 928
 929         /* now read the message... */
 930                 e=read_message(msg_arr[a],pagin);
 931
 932         /* ...and set the screenwidth back if we have to */
 933                 if (quotflag) {
 934                         screenwidth = hold_sw;
 935                         }
 936 RMSGREAD:       fflush(stdout);
 937                 highest_msg_read = msg_arr[a];
 938                 if (quotflag) {
 939                         freopen("/dev/tty","r+",stdout);
 940                         quotflag=0;
 941                         process_quote();
 942                         }
 943                 if (arcflag) {
 944                         freopen("/dev/tty","r+",stdout);
 945                         arcflag=0;
 946                         f=fork();
 947                         if (f==0) {
 948                                 freopen(prtfile,"r",stdin);
 949                                 sttybbs(SB_RESTORE);
 950                                 ka_system(printcmd);
 951                                 sttybbs(SB_NO_INTR);
 952                                 unlink(prtfile);
 953                                 exit(0);
 954                                 }
 955                         if (f>0) do {
 956                                 g=wait(NULL);
 957                                 } while((g!=f)&&(g>=0));
 958                         printf("Message printed.\n");
 959                         }
 960                 if (e==3) return;
 961                 if ((userflags&US_NOPROMPT)||(e==2)) e='n';
 962                 else {
 963                         printf("(%d) ",num_msgs-a-1);
 964                         if (is_mail==1) printf("<R>eply ");
 965                         if (strlen(printcmd)>0) printf("<P>rint ");
 966                 printf("<B>ack <A>gain <Q>uote <H>eader <N>ext <S>top -> ");
 967                         do {
 968                                 lines_printed = 2;
 969                                 e=(inkey()&127); e=tolower(e);
 970 /* return key same as <N> */    if (e==13) e='n';
 971 /* del/move for aides only */   if (!is_room_aide) if ((e=='d')||(e=='m')) e=0;
 972 /* print only if available */   if ((e=='p')&&(strlen(printcmd)==0)) e=0;
 973 /* can't move from Mail> */     if ((e=='m')&&(is_mail==1)) e=0;
 974 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
 975                                 } while((e!='a')&&(e!='n')&&(e!='s')
 976                                         &&(e!='d')&&(e!='m')&&(e!='p')
 977                                         &&(e!='q')&&(e!='b')&&(e!='h')
 978                                         &&(e!='r'));
 979                         switch(e) {
 980                                 case 's':       printf("Stop\r");       break;
 981                                 case 'a':       printf("Again\r");      break;
 982                                 case 'd':       printf("Delete\r");     break;
 983                                 case 'm':       printf("Move\r");       break;
 984                                 case 'n':       printf("Next\r");       break;
 985                                 case 'p':       printf("Print\r");      break;
 986                                 case 'q':       printf("Quote\r");      break;
 987                                 case 'b':       printf("Back\r");       break;
 988                                 case 'h':       printf("Header\r");     break;
 989                                 case 'r':       printf("Reply\r");      break;
 990                                 }
 991                         if (userflags & US_DISAPPEAR)
 992                                 printf("%75s\r","");
 993                         else
 994                                 printf("\n");
 995                         fflush(stdout);
 996                         }
 997                 switch(e) {
 998                    case 'p':    fflush(stdout);
 999                                 freopen(prtfile,"w",stdout);
1000                                 arcflag = 1;
1001                                 goto RAGAIN;
1002                    case 'q':    fflush(stdout);
1003                                 freopen(temp2,"w",stdout);
1004                                 quotflag = 1;
1005                                 goto RAGAIN;
1006                    case 's':    return;
1007                    case 'a':    goto RAGAIN;
1008                    case 'b':    a=a-(rdir*2);
1009                                 break;
1010                    case 'm':    newprompt("Enter target room: ",targ,19);
1011                                 if (strlen(targ)>0) {
1012                                         sprintf(cmd,"MOVE %ld|%s",
1013                                                 msg_arr[a],targ);
1014                                         serv_puts(cmd);
1015                                         serv_gets(cmd);
1016                                         printf("%s\n",&cmd[4]);
1017                                         if (cmd[0]=='2') msg_arr[a]=0L;
1018                                         }
1019                                 else {
1020                                         goto RMSGREAD;
1021                                         }
1022                                 if (cmd[0]!='2') goto RMSGREAD;
1023                                 break;
1024                    case 'd':    printf("*** Delete this message? ");
1025                                 if (yesno()==1) {
1026                                         sprintf(cmd,"DELE %ld",msg_arr[a]);
1027                                         serv_puts(cmd);
1028                                         serv_gets(cmd);
1029                                         printf("%s\n",&cmd[4]);
1030                                         if (cmd[0]=='2') msg_arr[a]=0L;
1031                                         }
1032                                 else {
1033                                         goto RMSGREAD;
1034                                         }
1035                                 break;
1036                    case 'h':    read_message(msg_arr[a],READ_HEADER);
1037                                 goto RMSGREAD;
1038                    case 'r':    entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1039                                 goto RMSGREAD;
1040                         }
1041                 } /* end for loop */
1042         } /* end read routine */
1043
1044
1045
1046
1047 /*
1048  * View and edit a system message
1049  */
1050 void edit_system_message(char *which_message)
1051 {
1052         char desc[64];
1053         char read_cmd[64];
1054         char write_cmd[64];
1055
1056         sprintf(desc, "system message '%s'", which_message);
1057         sprintf(read_cmd, "MESG %s", which_message);
1058         sprintf(write_cmd, "EMSG %s", which_message);
1059         do_edit(desc, read_cmd, "NOOP", write_cmd);
1060         }