citadel/messages.c

   1 /*
   2  * Citadel/UX message support routines
   3  * see copyright.txt 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 #include "messages.h"
  20
  21 #define MAXWORDBUF 256
  22 #define MAXMSGS 512
  23
  24 struct cittext {
  25         struct cittext *next;
  26         char text[MAXWORDBUF];
  27         };
  28
  29 char inkey(void);
  30 void sttybbs(int cmd);
  31 int struncmp(char *lstr, char *rstr, int len);
  32 int fmout(int width, FILE *fp, char pagin, int height, int starting_lp, char subst);
  33 int haschar(char *st, int ch);
  34 int checkpagin(int lp, int pagin, int height);
  35 void getline(char *string, int lim);
  36 void formout(char *name);
  37 int yesno(void);
  38 void newprompt(char *prompt, char *str, int len);
  39 int file_checksum(char *filename);
  40 void color(int colornum);
  41 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
  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 extern int rc_allow_attachments;
  65
  66 extern int editor_pid;
  67
  68 int lines_printed;
  69
  70 void ka_sigcatch(void) {
  71         char buf[256];
  72         alarm(S_KEEPALIVE);
  73         signal(SIGALRM, (void *)ka_sigcatch);
  74         serv_puts("NOOP");
  75         serv_gets(buf);
  76         }
  77
  78
  79 /*
  80  * server keep-alive version of wait() (needed for external editor)
  81  */
  82 pid_t ka_wait(pid_t *kstatus)
  83 {
  84         pid_t p;
  85
  86         alarm(S_KEEPALIVE);
  87         signal(SIGALRM, (void *)ka_sigcatch);
  88         do {
  89                 errno = 0;
  90                 p = wait(kstatus);
  91                 } while (errno==EINTR);
  92         signal(SIGALRM,SIG_IGN);
  93         alarm(0);
  94         return(p);
  95         }
  96
  97
  98 /*
  99  * version of system() that uses ka_wait()
 100  */
 101 int ka_system(char *shc)
 102 {
 103         pid_t childpid;
 104         pid_t waitpid;
 105         int retcode;
 106
 107         childpid = fork();
 108         if (childpid < 0) {
 109                 color(1);
 110                 perror("Cannot fork");
 111                 color(7);
 112                 return((pid_t)childpid);
 113                 }
 114
 115         if (childpid == 0) {
 116                 execlp("/bin/sh","sh","-c",shc,NULL);
 117                 exit(127);
 118                 }
 119
 120         if (childpid > 0) {
 121                 do {
 122                         waitpid = ka_wait(&retcode);
 123                         } while (waitpid != childpid);
 124                 return(retcode);
 125                 }
 126
 127         return(-1);
 128         }
 129
 130
 131
 132 /*
 133  * add a newline to the buffer...
 134  */
 135 void add_newline(struct cittext *textlist)
 136 {
 137         struct cittext *ptr;
 138
 139         ptr=textlist;
 140         while (ptr->next != NULL) ptr = ptr->next;
 141
 142         while (ptr->text[strlen(ptr->text)-1]==32)
 143                 ptr->text[strlen(ptr->text)-1] = 0;
 144         /* strcat(ptr->text,"\n"); */
 145
 146         ptr->next = (struct cittext *)
 147                 malloc(sizeof(struct cittext));
 148         ptr = ptr->next;
 149         ptr->next = NULL;
 150         strcpy(ptr->text,"");
 151         }
 152
 153
 154 /*
 155  * add a word to the buffer...
 156  */
 157 void add_word(struct cittext *textlist, char *wordbuf)
 158 {
 159         struct cittext *ptr;
 160
 161
 162         ptr=textlist;
 163         while (ptr->next != NULL) ptr = ptr->next;
 164
 165         if (3+strlen(ptr->text)+strlen(wordbuf) > screenwidth) {
 166                 ptr->next = (struct cittext *)
 167                         malloc(sizeof(struct cittext));
 168                 ptr = ptr->next;
 169                 ptr->next = NULL;
 170                 strcpy(ptr->text,"");
 171                 }
 172
 173         strcat(ptr->text,wordbuf);
 174         strcat(ptr->text," ");
 175         }
 176
 177
 178 /*
 179  * begin editing of an opened file pointed to by fp, beginning at position pos.
 180  */
 181 void citedit(FILE *fp, long int base_pos)
 182 {
 183         int a,prev,finished,b,last_space;
 184         int appending = 0;
 185         struct cittext *textlist = NULL;
 186         struct cittext *ptr;
 187         char wordbuf[MAXWORDBUF];
 188         char buf[256];
 189         long last_server_msg,now;
 190
 191         /*
 192          * we're going to keep track of the last time we talked to
 193          * the server, so we can periodically send keep-alive messages
 194          * out so it doesn't time out.
 195          */
 196         time(&last_server_msg);
 197
 198         /* first, load the text into the buffer */
 199         fseek(fp,base_pos,0);
 200         textlist = (struct cittext *)malloc(sizeof(struct cittext));
 201         textlist->next = NULL;
 202         strcpy(textlist->text,"");
 203
 204         strcpy(wordbuf,"");
 205         prev = (-1);
 206         while (a=getc(fp), a>=0) {
 207                 appending = 1;
 208                 if ((a==32)||(a==9)||(a==13)||(a==10)) {
 209                         add_word(textlist,wordbuf);
 210                         strcpy(wordbuf,"");
 211                         if ((prev==13)||(prev==10)) {
 212                                 add_word(textlist,"\n");
 213                                 add_newline(textlist);
 214                                 add_word(textlist,"");
 215                                 }
 216                         }
 217                 else {
 218                         wordbuf[strlen(wordbuf)+1] = 0;
 219                         wordbuf[strlen(wordbuf)] = a;
 220                         }
 221                 if (strlen(wordbuf)+3 > screenwidth) {
 222                         add_word(textlist,wordbuf);
 223                         strcpy(wordbuf,"");
 224                         }
 225                 prev = a;
 226                 }
 227
 228         /* get text */
 229         finished = 0;
 230         prev = (appending ? 13 : (-1));
 231         strcpy(wordbuf,"");
 232         do {
 233                 a=inkey();
 234                 if (a==10) a=13;
 235                 if (a==9) a=32;
 236                 if (a==127) a=8;
 237                 if ((a==32)&&(prev==13)) {
 238                         add_word(textlist,"\n");
 239                         add_newline(textlist);
 240                         }
 241                 if (a==8) {
 242                         if (strlen(wordbuf)>0) {
 243                                 wordbuf[strlen(wordbuf)-1] = 0;
 244                                 putc(8,stdout);
 245                                 putc(32,stdout);
 246                                 putc(8,stdout);
 247                                 }
 248                         }
 249                 else if (a==13) {
 250                         printf("\n");
 251                         if (strlen(wordbuf)==0) finished = 1;
 252                         else {
 253                                 for (b=0; b<strlen(wordbuf); ++b)
 254                                    if (wordbuf[b]==32) {
 255                                         wordbuf[b]=0;
 256                                         add_word(textlist,wordbuf);
 257                                         strcpy(wordbuf,&wordbuf[b+1]);
 258                                         b=0;
 259                                         }
 260                                 add_word(textlist,wordbuf);
 261                                 strcpy(wordbuf,"");
 262                                 }
 263                         }
 264                 else {
 265                         putc(a,stdout);
 266                         wordbuf[strlen(wordbuf)+1] = 0;
 267                         wordbuf[strlen(wordbuf)] = a;
 268                         }
 269                 if ((strlen(wordbuf)+3) > screenwidth) {
 270                         last_space = (-1);
 271                         for (b=0; b<strlen(wordbuf); ++b)
 272                                 if (wordbuf[b]==32) last_space = b;
 273                         if (last_space>=0) {
 274                                 for (b=0; b<strlen(wordbuf); ++b)
 275                                    if (wordbuf[b]==32) {
 276                                         wordbuf[b]=0;
 277                                         add_word(textlist,wordbuf);
 278                                         strcpy(wordbuf,&wordbuf[b+1]);
 279                                         b=0;
 280                                         }
 281                                 for (b=0; b<strlen(wordbuf); ++b) {
 282                                         putc(8,stdout);
 283                                         putc(32,stdout);
 284                                         putc(8,stdout);
 285                                         }
 286                                 printf("\n%s",wordbuf);
 287                                 }
 288                         else {
 289                                 add_word(textlist,wordbuf);
 290                                 strcpy(wordbuf,"");
 291                                 printf("\n");
 292                                 }
 293                         }
 294                 prev = a;
 295
 296                 /* this check implements the server keep-alive */
 297                 time(&now);
 298                 if ( (now - last_server_msg) > S_KEEPALIVE ) {
 299                         serv_puts("NOOP");
 300                         serv_gets(buf);
 301                         last_server_msg = now;
 302                         }
 303
 304                 } while (finished==0);
 305
 306         /* write the buffer back to disk */
 307         fseek(fp,base_pos,0);
 308         for (ptr=textlist; ptr!=NULL; ptr=ptr->next) {
 309                 fprintf(fp,"%s",ptr->text);
 310                 }
 311         putc(10,fp);
 312         putc(0,fp);
 313
 314         /* and deallocate the memory we used */
 315         while (textlist!=NULL) {
 316                 ptr=textlist->next;
 317                 free(textlist);
 318                 textlist=ptr;
 319                 }
 320         }
 321
 322
 323 int read_message(long int num, char pagin) /* Read a message from the server */
 324                                            /* message number */
 325                 /* 0 = normal read, 1 = read with pagination, 2 = header */
 326 {
 327         char buf[256];
 328         char m_subject[256];
 329         char from[256];
 330         long now;
 331         struct tm *tm;
 332         int format_type = 0;
 333         int fr = 0;
 334         int nhdr = 0;
 335
 336         sigcaught = 0;
 337         sttybbs(1);
 338
 339         sprintf(buf,"MSG0 %ld|%d",num,(pagin==READ_HEADER ? 1 : 0));
 340         serv_puts(buf);
 341         serv_gets(buf);
 342         if (buf[0]!='1') {
 343                 printf("*** msg #%ld: %s\n",num,buf);
 344                 ++lines_printed;
 345                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 346                 sttybbs(0);
 347                 return(0);
 348                 }
 349
 350         strcpy(m_subject,"");
 351         printf("\n");
 352         ++lines_printed;
 353         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 354         printf(" ");
 355         if (pagin == 1) color(3);
 356
 357         if (pagin==2) {
 358                 while(serv_gets(buf), strcmp(buf,"000")) {
 359                         if (buf[4]=='=') {
 360                                 printf("%s\n",buf);
 361                                 ++lines_printed;
 362                                 lines_printed =
 363                                         checkpagin(lines_printed,
 364                                                 pagin,screenheight);
 365                                 }
 366                         }
 367                 sttybbs(0);
 368                 return(0);
 369                 }
 370
 371         strcpy(reply_to,"nobody...xxxxx");
 372         while(serv_gets(buf), struncmp(buf,"text",4)) {
 373                 if (!struncmp(buf,"nhdr=yes",8)) nhdr=1;
 374                 if (!struncmp(buf,"from=",5)) {
 375                         strcpy(from,&buf[5]);
 376                         }
 377                 if (nhdr==1) buf[0]='_';
 378                 if (!struncmp(buf,"type=",5))
 379                         format_type=atoi(&buf[5]);
 380                 if (!struncmp(buf,"from=",5)) {
 381                         printf("from %s ",&buf[5]);
 382                         }
 383                 if (!struncmp(buf,"subj=",5))
 384                         strcpy(m_subject,&buf[5]);
 385                 if ((!struncmp(buf,"hnod=",5))
 386                    && (strucmp(&buf[5],serv_info.serv_humannode)))
 387                         printf("(%s) ",&buf[5]);
 388                 if ((!struncmp(buf,"room=",5))
 389                    && (strucmp(&buf[5],room_name)))
 390                         printf("in %s> ",&buf[5]);
 391
 392                 if (!struncmp(buf,"node=",5)) {
 393                         if ( (room_flags&QR_NETWORK)
 394                            || ((strucmp(&buf[5],serv_info.serv_nodename)
 395                            &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
 396                                 {
 397                                 printf("@%s ",&buf[5]);
 398                                 }
 399                         if ((!strucmp(&buf[5],serv_info.serv_nodename))
 400                            ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
 401                                 {
 402                                 strcpy(reply_to,from);
 403                                 }
 404                         else {
 405                                 sprintf(reply_to,"%s @ %s",from,&buf[5]);
 406                                 }
 407                         }
 408
 409                 if (!struncmp(buf,"rcpt=",5))
 410                         printf("to %s ",&buf[5]);
 411                 if (!struncmp(buf,"time=",5)) {
 412                         now=atol(&buf[5]);
 413                         tm=(struct tm *)localtime(&now);
 414                         strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
 415                         strcpy(&buf[16],&buf[19]);
 416                         printf("%s ",&buf[4]);
 417                         }
 418                 }
 419
 420         if (nhdr==1) {
 421                 if (!is_room_aide) {
 422                         printf(" ****");
 423                         }
 424                 else {
 425                         printf(" %s",from);
 426                         }
 427                 }
 428         printf("\n");
 429         if (pagin == 1 ) color(2);
 430         ++lines_printed;
 431         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 432
 433         if (strlen(m_subject)>0) {
 434                 printf("Subject: %s\n",m_subject);
 435                 ++lines_printed;
 436                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 437                 }
 438
 439         if (format_type == 0) {
 440                 fr=fmout(screenwidth,NULL,
 441                         ((pagin==1) ? 1 : 0),
 442                         screenheight,(-1),1);
 443                 }
 444         else {
 445                 while(serv_gets(buf), strcmp(buf,"000")) {
 446                         if (sigcaught==0) {
 447                                 printf("%s\n",buf);
 448                                 lines_printed = lines_printed + 1 +
 449                                         (strlen(buf)/screenwidth);
 450                                 lines_printed =
 451                                         checkpagin(lines_printed,pagin,screenheight);
 452                                 }
 453                         }
 454                 fr = sigcaught;
 455                 }
 456         printf("\n");
 457         ++lines_printed;
 458         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 459
 460         if (pagin == 1) color(7);
 461         sttybbs(0);
 462         return(fr);
 463         }
 464
 465 /*
 466  * replace string function for the built-in editor
 467  */
 468 void replace_string(char *filename, long int startpos)
 469 {
 470         char buf[512];
 471         char srch_str[128];
 472         char rplc_str[128];
 473         FILE *fp;
 474         int a;
 475         long rpos,wpos;
 476         char *ptr;
 477         int substitutions = 0;
 478         long msglen = 0L;
 479
 480         printf("Enter text to be replaced:\n: ");
 481         getline(srch_str,128);
 482         if (strlen(srch_str)==0) return;
 483
 484         printf("Enter text to replace it with:\n: ");
 485         getline(rplc_str,128);
 486
 487         fp=fopen(filename,"r+");
 488         if (fp==NULL) return;
 489
 490         wpos=startpos;
 491         fseek(fp,startpos,0);
 492         strcpy(buf,"");
 493         while (a=getc(fp), a>0) {
 494                 ++msglen;
 495                 buf[strlen(buf)+1] = 0;
 496                 buf[strlen(buf)] = a;
 497                 if ( strlen(buf) >= strlen(srch_str) ) {
 498                         ptr=&buf[strlen(buf)-strlen(srch_str)];
 499                         if (!struncmp(ptr,srch_str,strlen(srch_str))) {
 500                                 strcpy(ptr,rplc_str);
 501                                 ++substitutions;
 502                                 }
 503                         }
 504                 if (strlen(buf)>384) {
 505                         rpos=ftell(fp);
 506                         fseek(fp,wpos,0);
 507                         fwrite((char *)buf,128,1,fp);
 508                         strcpy(buf,&buf[128]);
 509                         wpos = ftell(fp);
 510                         fseek(fp,rpos,0);
 511                         }
 512                 }
 513         fseek(fp,wpos,0);
 514         if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
 515         putc(0,fp);
 516         fclose(fp);
 517         printf("<R>eplace made %d substitution(s).\n\n",substitutions);
 518         }
 519
 520
 521 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode, char *boundary)
 522                         /* temporary file name */
 523                         /* NULL if it's not mail */
 524                         /* see MES_ types in header file */
 525
 526
 527 {
 528         FILE *fp;
 529         int a,b,e_ex_code;
 530         long now,beg;
 531         char datestr[64];
 532         int cksum = 0;
 533
 534         if (mode==2) if (strlen(editor_path)==0) {
 535                 printf("*** No editor available, using built-in editor\n");
 536                 mode=0;
 537                 }
 538
 539         time(&now);
 540         strcpy(datestr,asctime(localtime(&now)));
 541         datestr[strlen(datestr)-1] = 0;
 542
 543         if (room_flags & QR_ANONONLY) {
 544                 printf(" ****");
 545                 }
 546         else {
 547                 printf(" %s from %s",datestr,fullname);
 548                 if (strlen(recipient)>0) printf(" to %s",recipient);
 549                 }
 550         printf("\n");
 551
 552         beg = 0L;
 553
 554         if (mode==1) printf("(Press ctrl-d when finished)\n");
 555         if (mode==0) {
 556                 fp=fopen(filename,"r");
 557                 if (fp!=NULL) {
 558                         fmout(screenwidth,fp,0,screenheight,0,0);
 559                         beg = ftell(fp);
 560                         fclose(fp);
 561                         }
 562                 else {
 563                         fp=fopen(filename,"w");
 564                         fclose(fp);
 565                         }
 566                 }
 567
 568 ME1:    switch(mode) {
 569
 570            case 0:
 571                 fp=fopen(filename,"r+");
 572                 citedit(fp,beg);
 573                 fclose(fp);
 574                 goto MECR;
 575                 break;
 576
 577            case 1:
 578                 fp=fopen(filename,"w");
 579                 do {
 580                         a=inkey(); if (a==255) a=32;
 581                         if (a==13) a=10;
 582                         if (a!=4) {
 583                                 putc(a,fp);
 584                                 putc(a,stdout);
 585                                 }
 586                         if (a==10) putc(13,stdout);
 587                         } while(a!=4);
 588                 fclose(fp);
 589                 break;
 590
 591            case 2:
 592                 e_ex_code = 1;  /* start with a failed exit code */
 593                 editor_pid=fork();
 594                 cksum = file_checksum(filename);
 595                 if (editor_pid==0) {
 596                         chmod(filename,0600);
 597                         sttybbs(SB_RESTORE);
 598                         execlp(editor_path,editor_path,filename,NULL);
 599                         exit(1);
 600                         }
 601                 if (editor_pid>0) do {
 602                         e_ex_code = 0;
 603                         b=ka_wait(&e_ex_code);
 604                         } while((b!=editor_pid)&&(b>=0));
 605                 editor_pid = (-1);
 606                 sttybbs(0);
 607                 break;
 608                 }
 609
 610 MECR:   if (mode==2) {
 611                 if (file_checksum(filename) == cksum) {
 612                         printf("*** Aborted message.\n");
 613                         e_ex_code = 1;
 614                         }
 615                 if (e_ex_code==0) goto MEFIN;
 616                 goto MEABT2;
 617                 }
 618 MECR1:  printf("Entry cmd (? for options) -> ");
 619 MECR2:  b=inkey();
 620         if (b==NEXT_KEY) b='n';
 621         if (b==STOP_KEY) b='s';
 622         b=(b&127); b=tolower(b);
 623         if (b=='?') {
 624                 printf("Help\n");
 625                 formout("saveopt");
 626                 goto MECR1;
 627                 }
 628         if (b=='a') { printf("Abort\n");        goto MEABT;     }
 629         if (b=='c') { printf("Continue\n");     goto ME1;       }
 630         if (b=='s') { printf("Save message\n"); goto MEFIN;     }
 631         if (b=='p') {
 632                 printf("Print formatted\n");
 633                 printf(" %s from %s",datestr,fullname);
 634                 if (strlen(recipient)>0) printf(" to %s",recipient);
 635                 printf("\n");
 636                 fp=fopen(filename,"r");
 637                 if (fp!=NULL) {
 638                         fmout(screenwidth,fp,
 639                                 ((userflags & US_PAGINATOR) ? 1 : 0),
 640                                 screenheight,0,0);
 641                         beg = ftell(fp);
 642                         fclose(fp);
 643                         }
 644                 goto MECR;
 645                 }
 646         if (b=='r') {
 647                 printf("Replace string\n");
 648                 replace_string(filename,0L);
 649                 goto MECR;
 650                 }
 651         if (b=='h') {
 652                 printf("Hold message\n");
 653                 return(2);
 654                 }
 655         if ((b=='f')&&(rc_allow_attachments==1)) {
 656                 printf("attach File\n");
 657                 if (strlen(boundary)==0) {
 658                         sprintf(boundary, "Citadel-Attachment-%ld.%d",
 659                                 time(NULL), getpid() );
 660                         }
 661                 /* FIX FIX now you have to attach the file, stupid */
 662                 }
 663         goto MECR2;
 664
 665 MEFIN:  return(0);
 666
 667 MEABT:  printf("Are you sure? ");
 668         if (yesno()==0) goto ME1;
 669 MEABT2: unlink(filename);
 670         return(2);
 671         }
 672
 673 /*
 674  * transmit message text to the server
 675  */
 676 void transmit_message(FILE *fp)
 677 {
 678         char buf[256];
 679         int ch,a;
 680
 681         strcpy(buf,"");
 682         while (ch=getc(fp), (ch>=0)) {
 683                 if (ch==10) {
 684                         if (!strcmp(buf,"000")) strcpy(buf,">000");
 685                         serv_puts(buf);
 686                         strcpy(buf,"");
 687                         }
 688                 else {
 689                         a = strlen(buf);
 690                         buf[a+1] = 0;
 691                         buf[a] = ch;
 692                         if ((ch==32)&&(strlen(buf)>200)) {
 693                                 buf[a]=0;
 694                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 695                                 serv_puts(buf);
 696                                 strcpy(buf,"");
 697                                 }
 698                         if (strlen(buf)>250) {
 699                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 700                                 serv_puts(buf);
 701                                 strcpy(buf,"");
 702                                 }
 703                         }
 704                 }
 705         serv_puts(buf);
 706         }
 707
 708
 709
 710 /*
 711  * entmsg()  -  edit and create a message
 712  *              returns 0 if message was saved
 713  */
 714 int entmsg(int is_reply, int c)
 715                         /* nonzero if this was a <R>eply command */
 716        {                /* */
 717         char buf[300];
 718         char cmd[256];
 719         char boundary[256];
 720         int a,b;
 721         int need_recp = 0;
 722         int mode;
 723         long highmsg;
 724         FILE *fp;
 725
 726         if (c>0) mode=1;
 727         else mode=0;
 728
 729         sprintf(cmd,"ENT0 0||0|%d",mode);
 730         serv_puts(cmd);
 731         serv_gets(cmd);
 732
 733         if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
 734                 printf("%s\n",&cmd[4]);
 735                 return(1);
 736                 }
 737         need_recp = 0;
 738         if (!strncmp(cmd,"570",3)) need_recp = 1;
 739
 740         if ((userflags & US_EXPERT) == 0) formout("entermsg");
 741
 742         strcpy(buf,"");
 743         if (need_recp==1) {
 744                 if (axlevel>=2) {
 745                         if (is_reply) {
 746                                 strcpy(buf,reply_to);
 747                                 }
 748                         else {
 749                                 printf("Enter recipient: ");
 750                                 getline(buf,299);
 751                                 if (strlen(buf)==0) return(1);
 752                                 }
 753                         }
 754                 else strcpy(buf,"sysop");
 755                 }
 756
 757         b=0;
 758         if (room_flags&QR_ANON2) {
 759                 printf("Anonymous (Y/N)? ");
 760                 if (yesno()==1) b=1;
 761                 }
 762
 763 /* if it's mail, we've got to check the validity of the recipient... */
 764         if (strlen(buf)>0) {
 765                 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
 766                 serv_puts(cmd);
 767                 serv_gets(cmd);
 768                 if (cmd[0]!='2') {
 769                         printf("%s\n",&cmd[4]);
 770                         return(1);
 771                         }
 772                 }
 773
 774 /* learn the number of the newest message in in the room, so we can tell
 775  * upon saving whether someone else has posted too
 776  */
 777         num_msgs = 0;
 778         serv_puts("MSGS LAST|1");
 779         serv_gets(cmd);
 780         if (cmd[0]!='1') {
 781                 printf("%s\n",&cmd[5]);
 782                 }
 783         else {
 784                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 785                         msg_arr[num_msgs++] = atol(cmd);
 786                         }
 787                 }
 788
 789 /* now put together the message */
 790         strcpy(boundary, "");
 791         if ( make_message(temp,buf,b,0,c,boundary) != 0 ) return(2);
 792
 793 /* and send it to the server */
 794         sprintf(cmd,"ENT0 1|%s|%d|%d||%s|",buf,b,mode,boundary);
 795         serv_puts(cmd);
 796         serv_gets(cmd);
 797         if (cmd[0]!='4') {
 798                 printf("%s\n",&cmd[4]);
 799                 return(1);
 800                 }
 801         fp=fopen(temp,"r");
 802         if (fp!=NULL) {
 803                 transmit_message(fp);
 804                 fclose(fp);
 805                 }
 806         serv_puts("000");
 807         unlink(temp);
 808
 809         highmsg = msg_arr[num_msgs - 1];
 810         num_msgs = 0;
 811         serv_puts("MSGS NEW");
 812         serv_gets(cmd);
 813         if (cmd[0]!='1') {
 814                 printf("%s\n",&cmd[5]);
 815                 }
 816         else {
 817                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 818                         msg_arr[num_msgs++] = atol(cmd);
 819                         }
 820                 }
 821
 822         /* get new highest message number in room to set lrp for goto... */
 823         maxmsgnum = msg_arr[num_msgs - 1];
 824
 825         /* now see if anyone else has posted in here */
 826         b=(-1);
 827         for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
 828
 829         /* in the Mail> room, this algorithm always counts one message
 830          * higher than in public rooms, so we decrement it by one */
 831         if (need_recp) --b;
 832
 833         if (b==1) printf(
 834 "*** 1 additional message has been entered in this room by another user.\n");
 835         if (b>1) printf(
 836 "*** %d additional messages have been entered in this room by other users.\n",b);
 837
 838         return(0);
 839         }
 840
 841 void process_quote(void) {      /* do editing on quoted file */
 842 FILE *qfile,*tfile;
 843 char buf[128];
 844 int line,qstart,qend;
 845
 846         /* Unlink the second temp file as soon as it's opened, so it'll get
 847          * deleted even if the program dies
 848          */
 849         qfile = fopen(temp2,"r");
 850         unlink(temp2);
 851
 852         /* Display the quotable text with line numbers added */
 853         line = 0;
 854         fgets(buf,128,qfile);
 855         while (fgets(buf,128,qfile)!=NULL) {
 856                 printf("%2d %s",++line,buf);
 857                 }
 858         printf("Begin quoting at [ 1] : ");
 859         getline(buf,3);
 860         qstart = (buf[0]==0) ? (1) : atoi(buf);
 861         printf("  End quoting at [%d] : ",line);
 862         getline(buf,3);
 863         qend = (buf[0]==0) ? (line) : atoi(buf);
 864         rewind(qfile);
 865         line=0;
 866         fgets(buf,128,qfile);
 867         tfile=fopen(temp,"w");
 868         while(fgets(buf,128,qfile)!=NULL) {
 869                 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
 870                 }
 871         fprintf(tfile," \n");
 872         fclose(qfile);
 873         fclose(tfile);
 874         chmod(temp,0666);
 875         }
 876
 877
 878 void readmsgs(int c, int rdir, int q)   /* read contents of a room */
 879                 /* 0=Read all  1=Read new  2=Read old 3=Read last q */
 880                 /* 1=Forward (-1)=Reverse */
 881                 /* Number of msgs to read (if c==3) */
 882         {
 883         int a,b,e,f,g,start;
 884         int hold_sw = 0;
 885         char arcflag = 0;
 886         char quotflag = 0;
 887         char prtfile[16];
 888         char pagin;
 889         char cmd[256];
 890         char targ[20];
 891
 892         signal(SIGINT,SIG_IGN);
 893         signal(SIGQUIT,SIG_IGN);
 894
 895         if (c<0) b=(MAXMSGS-1);
 896         else b=0;
 897
 898         sprintf(prtfile,"/tmp/CPrt%d",getpid());
 899
 900         num_msgs = 0;
 901         strcpy(cmd,"MSGS ");
 902         switch(c) {
 903                 case 0: strcat(cmd,"ALL");
 904                         break;
 905                 case 1: strcat(cmd,"NEW");
 906                         break;
 907                 case 2: strcat(cmd,"OLD");
 908                         break;
 909                 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
 910                         break;
 911                 }
 912         serv_puts(cmd);
 913         serv_gets(cmd);
 914         if (cmd[0]!='1') {
 915                 printf("%s\n",&cmd[5]);
 916                 }
 917         else {
 918                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 919                         msg_arr[num_msgs++] = atol(cmd);
 920                         }
 921                 }
 922
 923         lines_printed = 0;
 924
 925         /* this loop cycles through each message... */
 926         start = ( (rdir==1) ? 0 : (num_msgs-1) );
 927         for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
 928                 while (msg_arr[a]==0L) {
 929                         a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
 930                         }
 931
 932 RAGAIN:         pagin=((arcflag==0)&&(quotflag==0)&&
 933                         (userflags & US_PAGINATOR)) ? 1 : 0;
 934
 935         /* if we're doing a quote, set the screenwidth to 72 temporarily */
 936                 if (quotflag) {
 937                         hold_sw = screenwidth;
 938                         screenwidth = 72;
 939                         }
 940
 941         /* now read the message... */
 942                 e=read_message(msg_arr[a],pagin);
 943
 944         /* ...and set the screenwidth back if we have to */
 945                 if (quotflag) {
 946                         screenwidth = hold_sw;
 947                         }
 948 RMSGREAD:       fflush(stdout);
 949                 highest_msg_read = msg_arr[a];
 950                 if (quotflag) {
 951                         freopen("/dev/tty","r+",stdout);
 952                         quotflag=0;
 953                         process_quote();
 954                         }
 955                 if (arcflag) {
 956                         freopen("/dev/tty","r+",stdout);
 957                         arcflag=0;
 958                         f=fork();
 959                         if (f==0) {
 960                                 freopen(prtfile,"r",stdin);
 961                                 sttybbs(SB_RESTORE);
 962                                 ka_system(printcmd);
 963                                 sttybbs(SB_NO_INTR);
 964                                 unlink(prtfile);
 965                                 exit(0);
 966                                 }
 967                         if (f>0) do {
 968                                 g=wait(NULL);
 969                                 } while((g!=f)&&(g>=0));
 970                         printf("Message printed.\n");
 971                         }
 972                 if (e==3) return;
 973                 if ((userflags&US_NOPROMPT)||(e==2)) e='n';
 974                 else {
 975                         printf("(%d) ",num_msgs-a-1);
 976                         if (is_mail==1) printf("<R>eply ");
 977                         if (strlen(printcmd)>0) printf("<P>rint ");
 978                 printf("<B>ack <A>gain <Q>uote <H>eader <N>ext <S>top -> ");
 979                         do {
 980                                 lines_printed = 2;
 981                                 e=(inkey()&127); e=tolower(e);
 982 /* return key same as <N> */    if (e==13) e='n';
 983 /* del/move for aides only */   if (!is_room_aide) if ((e=='d')||(e=='m')) e=0;
 984 /* print only if available */   if ((e=='p')&&(strlen(printcmd)==0)) e=0;
 985 /* can't move from Mail> */     if ((e=='m')&&(is_mail==1)) e=0;
 986 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
 987                                 } while((e!='a')&&(e!='n')&&(e!='s')
 988                                         &&(e!='d')&&(e!='m')&&(e!='p')
 989                                         &&(e!='q')&&(e!='b')&&(e!='h')
 990                                         &&(e!='r'));
 991                         switch(e) {
 992                                 case 's':       printf("Stop\r");       break;
 993                                 case 'a':       printf("Again\r");      break;
 994                                 case 'd':       printf("Delete\r");     break;
 995                                 case 'm':       printf("Move\r");       break;
 996                                 case 'n':       printf("Next\r");       break;
 997                                 case 'p':       printf("Print\r");      break;
 998                                 case 'q':       printf("Quote\r");      break;
 999                                 case 'b':       printf("Back\r");       break;
1000                                 case 'h':       printf("Header\r");     break;
1001                                 case 'r':       printf("Reply\r");      break;
1002                                 }
1003                         if (userflags & US_DISAPPEAR)
1004                                 printf("%75s\r","");
1005                         else
1006                                 printf("\n");
1007                         fflush(stdout);
1008                         }
1009                 switch(e) {
1010                    case 'p':    fflush(stdout);
1011                                 freopen(prtfile,"w",stdout);
1012                                 arcflag = 1;
1013                                 goto RAGAIN;
1014                    case 'q':    fflush(stdout);
1015                                 freopen(temp2,"w",stdout);
1016                                 quotflag = 1;
1017                                 goto RAGAIN;
1018                    case 's':    return;
1019                    case 'a':    goto RAGAIN;
1020                    case 'b':    a=a-(rdir*2);
1021                                 break;
1022                    case 'm':    newprompt("Enter target room: ",targ,19);
1023                                 if (strlen(targ)>0) {
1024                                         sprintf(cmd,"MOVE %ld|%s",
1025                                                 msg_arr[a],targ);
1026                                         serv_puts(cmd);
1027                                         serv_gets(cmd);
1028                                         printf("%s\n",&cmd[4]);
1029                                         if (cmd[0]=='2') msg_arr[a]=0L;
1030                                         }
1031                                 else {
1032                                         goto RMSGREAD;
1033                                         }
1034                                 if (cmd[0]!='2') goto RMSGREAD;
1035                                 break;
1036                    case 'd':    printf("*** Delete this message? ");
1037                                 if (yesno()==1) {
1038                                         sprintf(cmd,"DELE %ld",msg_arr[a]);
1039                                         serv_puts(cmd);
1040                                         serv_gets(cmd);
1041                                         printf("%s\n",&cmd[4]);
1042                                         if (cmd[0]=='2') msg_arr[a]=0L;
1043                                         }
1044                                 else {
1045                                         goto RMSGREAD;
1046                                         }
1047                                 break;
1048                    case 'h':    read_message(msg_arr[a],READ_HEADER);
1049                                 goto RMSGREAD;
1050                    case 'r':    entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1051                                 goto RMSGREAD;
1052                         }
1053                 } /* end for loop */
1054         } /* end read routine */
1055
1056
1057
1058
1059 /*
1060  * View and edit a system message
1061  */
1062 void edit_system_message(char *which_message)
1063 {
1064         char desc[64];
1065         char read_cmd[64];
1066         char write_cmd[64];
1067
1068         sprintf(desc, "system message '%s'", which_message);
1069         sprintf(read_cmd, "MESG %s", which_message);
1070         sprintf(write_cmd, "EMSG %s", which_message);
1071         do_edit(desc, read_cmd, "NOOP", write_cmd);
1072         }