citadel/messages.c

   1 /*
   2  * Citadel/UX message support routines
   3  * see copyright.txt for copyright information
   4  * $Id$
   5  */
   6
   7 #include "sysdep.h"
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <sys/types.h>
  11 #include <fcntl.h>
  12 #include <stdio.h>
  13 #include <ctype.h>
  14 #include <string.h>
  15 #include <time.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <sys/wait.h>
  19 #include <sys/stat.h>
  20 #include <stdarg.h>
  21 #include "citadel.h"
  22 #include "messages.h"
  23 #include "commands.h"
  24 #include "rooms.h"
  25 #include "tools.h"
  26 #ifndef HAVE_SNPRINTF
  27 #include "snprintf.h"
  28 #endif
  29
  30 #define MAXWORDBUF 256
  31 #define MAXMSGS 512
  32
  33 struct cittext {
  34         struct cittext *next;
  35         char text[MAXWORDBUF];
  36         };
  37
  38 void sttybbs(int cmd);
  39 int struncmp(char *lstr, char *rstr, int len);
  40 int fmout(int width, FILE *fp, char pagin, int height, int starting_lp, char subst);
  41 int haschar(char *st, int ch);
  42 int checkpagin(int lp, int pagin, int height);
  43 void getline(char *string, int lim);
  44 void formout(char *name);
  45 int yesno(void);
  46 void newprompt(char *prompt, char *str, int len);
  47 int file_checksum(char *filename);
  48 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
  49
  50 char reply_to[512];
  51 long msg_arr[MAXMSGS];
  52 int num_msgs;
  53 extern char room_name[];
  54 extern unsigned room_flags;
  55 extern long highest_msg_read;
  56 extern struct CtdlServInfo serv_info;
  57 extern char temp[];
  58 extern char temp2[];
  59 extern int screenwidth;
  60 extern int screenheight;
  61 extern long maxmsgnum;
  62 extern char is_mail;
  63 extern char is_aide;
  64 extern char is_room_aide;
  65 extern char fullname[];
  66 extern char axlevel;
  67 extern unsigned userflags;
  68 extern char sigcaught;
  69 extern char editor_path[];
  70 extern char printcmd[];
  71 extern int rc_allow_attachments;
  72 extern int rc_display_message_numbers;
  73 extern int rc_force_mail_prompts;
  74
  75 extern int editor_pid;
  76
  77 int lines_printed;
  78
  79 void ka_sigcatch(int signum) {
  80         char buf[256];
  81         alarm(S_KEEPALIVE);
  82         signal(SIGALRM, ka_sigcatch);
  83         serv_puts("NOOP");
  84         serv_gets(buf);
  85         }
  86
  87
  88 /*
  89  * server keep-alive version of wait() (needed for external editor)
  90  */
  91 pid_t ka_wait(int *kstatus)
  92 {
  93         pid_t p;
  94
  95         alarm(S_KEEPALIVE);
  96         signal(SIGALRM, ka_sigcatch);
  97         do {
  98                 errno = 0;
  99                 p = wait(kstatus);
 100                 } while (errno==EINTR);
 101         signal(SIGALRM,SIG_IGN);
 102         alarm(0);
 103         return(p);
 104         }
 105
 106
 107 /*
 108  * version of system() that uses ka_wait()
 109  */
 110 int ka_system(char *shc)
 111 {
 112         pid_t childpid;
 113         pid_t waitpid;
 114         int retcode;
 115
 116         childpid = fork();
 117         if (childpid < 0) {
 118                 color(BRIGHT_RED);
 119                 perror("Cannot fork");
 120                 color(DIM_WHITE);
 121                 return((pid_t)childpid);
 122                 }
 123
 124         if (childpid == 0) {
 125                 execlp("/bin/sh","sh","-c",shc,NULL);
 126                 exit(127);
 127                 }
 128
 129         if (childpid > 0) {
 130                 do {
 131                         waitpid = ka_wait(&retcode);
 132                         } while (waitpid != childpid);
 133                 return(retcode);
 134                 }
 135
 136         return(-1);
 137         }
 138
 139
 140
 141 /*
 142  * add a newline to the buffer...
 143  */
 144 void add_newline(struct cittext *textlist)
 145 {
 146         struct cittext *ptr;
 147
 148         ptr=textlist;
 149         while (ptr->next != NULL) ptr = ptr->next;
 150
 151         while (ptr->text[strlen(ptr->text)-1]==32)
 152                 ptr->text[strlen(ptr->text)-1] = 0;
 153         /* strcat(ptr->text,"\n"); */
 154
 155         ptr->next = (struct cittext *)
 156                 malloc(sizeof(struct cittext));
 157         ptr = ptr->next;
 158         ptr->next = NULL;
 159         strcpy(ptr->text,"");
 160         }
 161
 162
 163 /*
 164  * add a word to the buffer...
 165  */
 166 void add_word(struct cittext *textlist, char *wordbuf)
 167 {
 168         struct cittext *ptr;
 169
 170
 171         ptr=textlist;
 172         while (ptr->next != NULL) ptr = ptr->next;
 173
 174         if (3+strlen(ptr->text)+strlen(wordbuf) > screenwidth) {
 175                 ptr->next = (struct cittext *)
 176                         malloc(sizeof(struct cittext));
 177                 ptr = ptr->next;
 178                 ptr->next = NULL;
 179                 strcpy(ptr->text,"");
 180                 }
 181
 182         strcat(ptr->text,wordbuf);
 183         strcat(ptr->text," ");
 184         }
 185
 186
 187 /*
 188  * begin editing of an opened file pointed to by fp, beginning at position pos.
 189  */
 190 void citedit(FILE *fp, long int base_pos)
 191 {
 192         int a,prev,finished,b,last_space;
 193         int appending = 0;
 194         struct cittext *textlist = NULL;
 195         struct cittext *ptr;
 196         char wordbuf[MAXWORDBUF];
 197         char buf[256];
 198         time_t last_server_msg,now;
 199
 200         /*
 201          * we're going to keep track of the last time we talked to
 202          * the server, so we can periodically send keep-alive messages
 203          * out so it doesn't time out.
 204          */
 205         time(&last_server_msg);
 206
 207         /* first, load the text into the buffer */
 208         fseek(fp,base_pos,0);
 209         textlist = (struct cittext *)malloc(sizeof(struct cittext));
 210         textlist->next = NULL;
 211         strcpy(textlist->text,"");
 212
 213         strcpy(wordbuf,"");
 214         prev = (-1);
 215         while (a=getc(fp), a>=0) {
 216                 appending = 1;
 217                 if ((a==32)||(a==9)||(a==13)||(a==10)) {
 218                         add_word(textlist,wordbuf);
 219                         strcpy(wordbuf,"");
 220                         if ((prev==13)||(prev==10)) {
 221                                 add_word(textlist,"\n");
 222                                 add_newline(textlist);
 223                                 add_word(textlist,"");
 224                                 }
 225                         }
 226                 else {
 227                         wordbuf[strlen(wordbuf)+1] = 0;
 228                         wordbuf[strlen(wordbuf)] = a;
 229                         }
 230                 if (strlen(wordbuf)+3 > screenwidth) {
 231                         add_word(textlist,wordbuf);
 232                         strcpy(wordbuf,"");
 233                         }
 234                 prev = a;
 235                 }
 236
 237         /* get text */
 238         finished = 0;
 239         prev = (appending ? 13 : (-1));
 240         strcpy(wordbuf,"");
 241         do {
 242                 a=inkey();
 243                 if (a==10) a=13;
 244                 if (a==9) a=32;
 245                 if (a==127) a=8;
 246                 if ((a==32)&&(prev==13)) {
 247                         add_word(textlist,"\n");
 248                         add_newline(textlist);
 249                         }
 250                 if (a==8) {
 251                         if (strlen(wordbuf)>0) {
 252                                 wordbuf[strlen(wordbuf)-1] = 0;
 253                                 putc(8,stdout);
 254                                 putc(32,stdout);
 255                                 putc(8,stdout);
 256                                 }
 257                         }
 258                 else if (a==13) {
 259                         printf("\n");
 260                         if (strlen(wordbuf)==0) finished = 1;
 261                         else {
 262                                 for (b=0; b<strlen(wordbuf); ++b)
 263                                    if (wordbuf[b]==32) {
 264                                         wordbuf[b]=0;
 265                                         add_word(textlist,wordbuf);
 266                                         strcpy(wordbuf,&wordbuf[b+1]);
 267                                         b=0;
 268                                         }
 269                                 add_word(textlist,wordbuf);
 270                                 strcpy(wordbuf,"");
 271                                 }
 272                         }
 273                 else {
 274                         putc(a,stdout);
 275                         wordbuf[strlen(wordbuf)+1] = 0;
 276                         wordbuf[strlen(wordbuf)] = a;
 277                         }
 278                 if ((strlen(wordbuf)+3) > screenwidth) {
 279                         last_space = (-1);
 280                         for (b=0; b<strlen(wordbuf); ++b)
 281                                 if (wordbuf[b]==32) last_space = b;
 282                         if (last_space>=0) {
 283                                 for (b=0; b<strlen(wordbuf); ++b)
 284                                    if (wordbuf[b]==32) {
 285                                         wordbuf[b]=0;
 286                                         add_word(textlist,wordbuf);
 287                                         strcpy(wordbuf,&wordbuf[b+1]);
 288                                         b=0;
 289                                         }
 290                                 for (b=0; b<strlen(wordbuf); ++b) {
 291                                         putc(8,stdout);
 292                                         putc(32,stdout);
 293                                         putc(8,stdout);
 294                                         }
 295                                 printf("\n%s",wordbuf);
 296                                 }
 297                         else {
 298                                 add_word(textlist,wordbuf);
 299                                 strcpy(wordbuf,"");
 300                                 printf("\n");
 301                                 }
 302                         }
 303                 prev = a;
 304
 305                 /* this check implements the server keep-alive */
 306                 time(&now);
 307                 if ( (now - last_server_msg) > S_KEEPALIVE ) {
 308                         serv_puts("NOOP");
 309                         serv_gets(buf);
 310                         last_server_msg = now;
 311                         }
 312
 313                 } while (finished==0);
 314
 315         /* write the buffer back to disk */
 316         fseek(fp,base_pos,0);
 317         for (ptr=textlist; ptr!=NULL; ptr=ptr->next) {
 318                 fprintf(fp,"%s",ptr->text);
 319                 }
 320         putc(10,fp);
 321         putc(0,fp);
 322
 323         /* and deallocate the memory we used */
 324         while (textlist!=NULL) {
 325                 ptr=textlist->next;
 326                 free(textlist);
 327                 textlist=ptr;
 328                 }
 329         }
 330
 331
 332 int read_message(long int num, char pagin) /* Read a message from the server */
 333                                            /* message number */
 334                 /* 0 = normal read, 1 = read with pagination, 2 = header */
 335 {
 336         char buf[256];
 337         char m_subject[256];
 338         char from[256];
 339         time_t now;
 340         struct tm *tm;
 341         int format_type = 0;
 342         int fr = 0;
 343         int nhdr = 0;
 344
 345         sigcaught = 0;
 346         sttybbs(1);
 347
 348         sprintf(buf,"MSG0 %ld|%d",num,(pagin==READ_HEADER ? 1 : 0));
 349         serv_puts(buf);
 350         serv_gets(buf);
 351         if (buf[0]!='1') {
 352                 printf("*** msg #%ld: %s\n",num,buf);
 353                 ++lines_printed;
 354                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 355                 sttybbs(0);
 356                 return(0);
 357                 }
 358
 359         strcpy(m_subject,"");
 360         printf("\n");
 361         ++lines_printed;
 362         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 363         printf(" ");
 364         if (pagin == 1) color(BRIGHT_CYAN);
 365
 366         if (pagin==2) {
 367                 while(serv_gets(buf), strcmp(buf,"000")) {
 368                         if (buf[4]=='=') {
 369                                 printf("%s\n",buf);
 370                                 ++lines_printed;
 371                                 lines_printed =
 372                                         checkpagin(lines_printed,
 373                                                 pagin,screenheight);
 374                                 }
 375                         }
 376                 sttybbs(0);
 377                 return(0);
 378                 }
 379
 380         strcpy(reply_to,"nobody...xxxxx");
 381         while(serv_gets(buf), struncmp(buf,"text",4)) {
 382                 if (!struncmp(buf,"nhdr=yes",8)) nhdr=1;
 383                 if (!struncmp(buf,"from=",5)) {
 384                         strcpy(from,&buf[5]);
 385                         }
 386                 if (nhdr==1) buf[0]='_';
 387                 if (!struncmp(buf,"type=",5))
 388                         format_type=atoi(&buf[5]);
 389                 if ((!struncmp(buf,"msgn=",5))&&(rc_display_message_numbers)) {
 390                         color(DIM_WHITE);
 391                         printf("[");
 392                         color(BRIGHT_WHITE);
 393                         printf("#%s",&buf[5]);
 394                         color(DIM_WHITE);
 395                         printf("] ");
 396                         }
 397                 if (!struncmp(buf,"from=",5)) {
 398                         color(DIM_WHITE);
 399                         printf("from ");
 400                         color(BRIGHT_CYAN);
 401                         printf("%s ",&buf[5]);
 402                         }
 403                 if (!struncmp(buf,"subj=",5))
 404                         strcpy(m_subject,&buf[5]);
 405                 if ((!struncmp(buf,"hnod=",5))
 406                    && (strucmp(&buf[5],serv_info.serv_humannode))) {
 407                         color(DIM_WHITE);
 408                         printf("(");
 409                         color(BRIGHT_WHITE);
 410                         printf("%s",&buf[5]);
 411                         color(DIM_WHITE);
 412                         printf(") ");
 413                         }
 414                 if ((!struncmp(buf,"room=",5))
 415                    && (strucmp(&buf[5],room_name))) {
 416                         color(DIM_WHITE);
 417                         printf("in ");
 418                         color(BRIGHT_MAGENTA);
 419                         printf("%s> ",&buf[5]);
 420                         }
 421
 422                 if (!struncmp(buf,"node=",5)) {
 423                         if ( (room_flags&QR_NETWORK)
 424                            || ((strucmp(&buf[5],serv_info.serv_nodename)
 425                            &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
 426                                 {
 427                                 color(DIM_WHITE);
 428                                 printf("@");
 429                                 color(BRIGHT_YELLOW);
 430                                 printf("%s ",&buf[5]);
 431                                 }
 432                         if ((!strucmp(&buf[5],serv_info.serv_nodename))
 433                            ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
 434                                 {
 435                                 strcpy(reply_to,from);
 436                                 }
 437                         else {
 438                                 sprintf(reply_to,"%s @ %s",from,&buf[5]);
 439                                 }
 440                         }
 441
 442                 if (!struncmp(buf,"rcpt=",5)) {
 443                         color(DIM_WHITE);
 444                         printf("to ");
 445                         color(BRIGHT_CYAN);
 446                         printf("%s ",&buf[5]);
 447                         }
 448                 if (!struncmp(buf,"time=",5)) {
 449                         now=atol(&buf[5]);
 450                         tm=(struct tm *)localtime(&now);
 451                         strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
 452                         strcpy(&buf[16],&buf[19]);
 453                         color(BRIGHT_MAGENTA);
 454                         printf("%s ",&buf[4]);
 455                         }
 456                 }
 457
 458         if (nhdr==1) {
 459                 if (!is_room_aide) {
 460                         printf(" ****");
 461                         }
 462                 else {
 463                         printf(" %s",from);
 464                         }
 465                 }
 466         printf("\n");
 467         if (pagin == 1) color(BRIGHT_WHITE);
 468         ++lines_printed;
 469         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 470
 471         if (strlen(m_subject)>0) {
 472                 printf("Subject: %s\n",m_subject);
 473                 ++lines_printed;
 474                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 475                 }
 476
 477         if (format_type == 0) {
 478                 fr=fmout(screenwidth,NULL,
 479                         ((pagin==1) ? 1 : 0),
 480                         screenheight,(-1),1);
 481                 }
 482         else {
 483                 while(serv_gets(buf), strcmp(buf,"000")) {
 484                         if (sigcaught==0) {
 485                                 printf("%s\n",buf);
 486                                 lines_printed = lines_printed + 1 +
 487                                         (strlen(buf)/screenwidth);
 488                                 lines_printed =
 489                                         checkpagin(lines_printed,pagin,screenheight);
 490                                 }
 491                         }
 492                 fr = sigcaught;
 493                 }
 494         printf("\n");
 495         ++lines_printed;
 496         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 497
 498         if (pagin == 1) color(DIM_WHITE);
 499         sttybbs(0);
 500         return(fr);
 501         }
 502
 503 /*
 504  * replace string function for the built-in editor
 505  */
 506 void replace_string(char *filename, long int startpos)
 507 {
 508         char buf[512];
 509         char srch_str[128];
 510         char rplc_str[128];
 511         FILE *fp;
 512         int a;
 513         long rpos,wpos;
 514         char *ptr;
 515         int substitutions = 0;
 516         long msglen = 0L;
 517
 518         printf("Enter text to be replaced:\n: ");
 519         getline(srch_str,128);
 520         if (strlen(srch_str)==0) return;
 521
 522         printf("Enter text to replace it with:\n: ");
 523         getline(rplc_str,128);
 524
 525         fp=fopen(filename,"r+");
 526         if (fp==NULL) return;
 527
 528         wpos=startpos;
 529         fseek(fp,startpos,0);
 530         strcpy(buf,"");
 531         while (a=getc(fp), a>0) {
 532                 ++msglen;
 533                 buf[strlen(buf)+1] = 0;
 534                 buf[strlen(buf)] = a;
 535                 if ( strlen(buf) >= strlen(srch_str) ) {
 536                         ptr=&buf[strlen(buf)-strlen(srch_str)];
 537                         if (!struncmp(ptr,srch_str,strlen(srch_str))) {
 538                                 strcpy(ptr,rplc_str);
 539                                 ++substitutions;
 540                                 }
 541                         }
 542                 if (strlen(buf)>384) {
 543                         rpos=ftell(fp);
 544                         fseek(fp,wpos,0);
 545                         fwrite((char *)buf,128,1,fp);
 546                         strcpy(buf,&buf[128]);
 547                         wpos = ftell(fp);
 548                         fseek(fp,rpos,0);
 549                         }
 550                 }
 551         fseek(fp,wpos,0);
 552         if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
 553         putc(0,fp);
 554         fclose(fp);
 555         printf("<R>eplace made %d substitution(s).\n\n",substitutions);
 556         }
 557
 558
 559 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode)
 560                         /* temporary file name */
 561                         /* NULL if it's not mail */
 562                         /* see MES_ types in header file */
 563
 564
 565 {
 566         FILE *fp;
 567         int a,b,e_ex_code;
 568         time_t now;
 569         long beg;
 570         char datestr[64];
 571         int cksum = 0;
 572
 573         if (mode==2) if (strlen(editor_path)==0) {
 574                 printf("*** No editor available, using built-in editor\n");
 575                 mode=0;
 576                 }
 577
 578         time(&now);
 579         strcpy(datestr,asctime(localtime(&now)));
 580         datestr[strlen(datestr)-1] = 0;
 581
 582         if (room_flags & QR_ANONONLY) {
 583                 printf(" ****");
 584                 }
 585         else {
 586                 printf(" %s from %s",datestr,fullname);
 587                 if (strlen(recipient)>0) printf(" to %s",recipient);
 588                 }
 589         printf("\n");
 590
 591         beg = 0L;
 592
 593         if (mode==1) printf("(Press ctrl-d when finished)\n");
 594         if (mode==0) {
 595                 fp=fopen(filename,"r");
 596                 if (fp!=NULL) {
 597                         fmout(screenwidth,fp,0,screenheight,0,0);
 598                         beg = ftell(fp);
 599                         fclose(fp);
 600                         }
 601                 else {
 602                         fp=fopen(filename,"w");
 603                         fclose(fp);
 604                         }
 605                 }
 606
 607 ME1:    switch(mode) {
 608
 609            case 0:
 610                 fp=fopen(filename,"r+");
 611                 citedit(fp,beg);
 612                 fclose(fp);
 613                 goto MECR;
 614
 615            case 1:
 616                 fp=fopen(filename,"w");
 617                 do {
 618                         a=inkey(); if (a==255) a=32;
 619                         if (a==13) a=10;
 620                         if (a!=4) {
 621                                 putc(a,fp);
 622                                 putc(a,stdout);
 623                                 }
 624                         if (a==10) putc(13,stdout);
 625                         } while(a!=4);
 626                 fclose(fp);
 627                 break;
 628
 629            case 2:
 630                 e_ex_code = 1;  /* start with a failed exit code */
 631                 editor_pid=fork();
 632                 cksum = file_checksum(filename);
 633                 if (editor_pid==0) {
 634                         chmod(filename,0600);
 635                         sttybbs(SB_RESTORE);
 636                         execlp(editor_path,editor_path,filename,NULL);
 637                         exit(1);
 638                         }
 639                 if (editor_pid>0) do {
 640                         e_ex_code = 0;
 641                         b=ka_wait(&e_ex_code);
 642                         } while((b!=editor_pid)&&(b>=0));
 643                 editor_pid = (-1);
 644                 sttybbs(0);
 645                 break;
 646                 }
 647
 648 MECR:   if (mode==2) {
 649                 if (file_checksum(filename) == cksum) {
 650                         printf("*** Aborted message.\n");
 651                         e_ex_code = 1;
 652                         }
 653                 if (e_ex_code==0) goto MEFIN;
 654                 goto MEABT2;
 655                 }
 656 MECR1:  printf("Entry cmd (? for options) -> ");
 657 MECR2:  b=inkey();
 658         if (b==NEXT_KEY) b='n';
 659         if (b==STOP_KEY) b='s';
 660         b=(b&127); b=tolower(b);
 661         if (b=='?') {
 662                 printf("Help\n");
 663                 formout("saveopt");
 664                 goto MECR1;
 665                 }
 666         if (b=='a') { printf("Abort\n");        goto MEABT;     }
 667         if (b=='c') { printf("Continue\n");     goto ME1;       }
 668         if (b=='s') { printf("Save message\n"); goto MEFIN;     }
 669         if (b=='p') {
 670                 printf("Print formatted\n");
 671                 printf(" %s from %s",datestr,fullname);
 672                 if (strlen(recipient)>0) printf(" to %s",recipient);
 673                 printf("\n");
 674                 fp=fopen(filename,"r");
 675                 if (fp!=NULL) {
 676                         fmout(screenwidth,fp,
 677                                 ((userflags & US_PAGINATOR) ? 1 : 0),
 678                                 screenheight,0,0);
 679                         beg = ftell(fp);
 680                         fclose(fp);
 681                         }
 682                 goto MECR;
 683                 }
 684         if (b=='r') {
 685                 printf("Replace string\n");
 686                 replace_string(filename,0L);
 687                 goto MECR;
 688                 }
 689         if (b=='h') {
 690                 printf("Hold message\n");
 691                 return(2);
 692                 }
 693         goto MECR2;
 694
 695 MEFIN:  return(0);
 696
 697 MEABT:  printf("Are you sure? ");
 698         if (yesno()==0) goto ME1;
 699 MEABT2: unlink(filename);
 700         return(2);
 701         }
 702
 703 /*
 704  * transmit message text to the server
 705  */
 706 void transmit_message(FILE *fp)
 707 {
 708         char buf[256];
 709         int ch,a;
 710
 711         strcpy(buf,"");
 712         while (ch=getc(fp), (ch>=0)) {
 713                 if (ch==10) {
 714                         if (!strcmp(buf,"000")) strcpy(buf,">000");
 715                         serv_puts(buf);
 716                         strcpy(buf,"");
 717                         }
 718                 else {
 719                         a = strlen(buf);
 720                         buf[a+1] = 0;
 721                         buf[a] = ch;
 722                         if ((ch==32)&&(strlen(buf)>200)) {
 723                                 buf[a]=0;
 724                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 725                                 serv_puts(buf);
 726                                 strcpy(buf,"");
 727                                 }
 728                         if (strlen(buf)>250) {
 729                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 730                                 serv_puts(buf);
 731                                 strcpy(buf,"");
 732                                 }
 733                         }
 734                 }
 735         serv_puts(buf);
 736         }
 737
 738
 739
 740 /*
 741  * entmsg()  -  edit and create a message
 742  *              returns 0 if message was saved
 743  */
 744 int entmsg(int is_reply, int c)
 745                         /* nonzero if this was a <R>eply command */
 746        {                /* */
 747         char buf[300];
 748         char cmd[256];
 749         int a,b;
 750         int need_recp = 0;
 751         int mode;
 752         long highmsg;
 753         FILE *fp;
 754
 755         if (c>0) mode=1;
 756         else mode=0;
 757
 758         sprintf(cmd,"ENT0 0||0|%d",mode);
 759         serv_puts(cmd);
 760         serv_gets(cmd);
 761
 762         if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
 763                 printf("%s\n",&cmd[4]);
 764                 return(1);
 765                 }
 766         need_recp = 0;
 767         if (!strncmp(cmd,"570",3)) need_recp = 1;
 768
 769         if ((userflags & US_EXPERT) == 0) formout("entermsg");
 770
 771         strcpy(buf,"");
 772         if (need_recp==1) {
 773                 if (axlevel>=2) {
 774                         if (is_reply) {
 775                                 strcpy(buf,reply_to);
 776                                 }
 777                         else {
 778                                 printf("Enter recipient: ");
 779                                 getline(buf, 60);
 780                                 if (strlen(buf)==0) return(1);
 781                                 }
 782                         }
 783                 else strcpy(buf,"sysop");
 784                 }
 785
 786         b=0;
 787         if (room_flags&QR_ANONOPT) {
 788                 printf("Anonymous (Y/N)? ");
 789                 if (yesno()==1) b=1;
 790                 }
 791
 792 /* if it's mail, we've got to check the validity of the recipient... */
 793         if (strlen(buf)>0) {
 794                 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
 795                 serv_puts(cmd);
 796                 serv_gets(cmd);
 797                 if (cmd[0]!='2') {
 798                         printf("%s\n",&cmd[4]);
 799                         return(1);
 800                         }
 801                 }
 802
 803 /* learn the number of the newest message in in the room, so we can tell
 804  * upon saving whether someone else has posted too
 805  */
 806         num_msgs = 0;
 807         serv_puts("MSGS LAST|1");
 808         serv_gets(cmd);
 809         if (cmd[0]!='1') {
 810                 printf("%s\n",&cmd[5]);
 811                 }
 812         else {
 813                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 814                         msg_arr[num_msgs++] = atol(cmd);
 815                         }
 816                 }
 817
 818 /* now put together the message */
 819         if ( make_message(temp,buf,b,0,c) != 0 ) return(2);
 820
 821 /* and send it to the server */
 822         sprintf(cmd,"ENT0 1|%s|%d|%d||",buf,b,mode);
 823         serv_puts(cmd);
 824         serv_gets(cmd);
 825         if (cmd[0]!='4') {
 826                 printf("%s\n",&cmd[4]);
 827                 return(1);
 828                 }
 829         fp=fopen(temp,"r");
 830         if (fp!=NULL) {
 831                 transmit_message(fp);
 832                 fclose(fp);
 833                 }
 834         serv_puts("000");
 835         unlink(temp);
 836
 837         highmsg = msg_arr[num_msgs - 1];
 838         num_msgs = 0;
 839         serv_puts("MSGS NEW");
 840         serv_gets(cmd);
 841         if (cmd[0]!='1') {
 842                 printf("%s\n",&cmd[5]);
 843                 }
 844         else {
 845                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 846                         msg_arr[num_msgs++] = atol(cmd);
 847                         }
 848                 }
 849
 850         /* get new highest message number in room to set lrp for goto... */
 851         maxmsgnum = msg_arr[num_msgs - 1];
 852
 853         /* now see if anyone else has posted in here */
 854         b=(-1);
 855         for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
 856
 857         /* in the Mail> room, this algorithm always counts one message
 858          * higher than in public rooms, so we decrement it by one */
 859         if (need_recp) --b;
 860
 861         if (b==1) printf(
 862 "*** 1 additional message has been entered in this room by another user.\n");
 863         if (b>1) printf(
 864 "*** %d additional messages have been entered in this room by other users.\n",b);
 865
 866         return(0);
 867         }
 868
 869 void process_quote(void) {      /* do editing on quoted file */
 870 FILE *qfile,*tfile;
 871 char buf[128];
 872 int line,qstart,qend;
 873
 874         /* Unlink the second temp file as soon as it's opened, so it'll get
 875          * deleted even if the program dies
 876          */
 877         qfile = fopen(temp2,"r");
 878         unlink(temp2);
 879
 880         /* Display the quotable text with line numbers added */
 881         line = 0;
 882         fgets(buf,128,qfile);
 883         while (fgets(buf,128,qfile)!=NULL) {
 884                 printf("%2d %s",++line,buf);
 885                 }
 886         printf("Begin quoting at [ 1] : ");
 887         getline(buf,3);
 888         qstart = (buf[0]==0) ? (1) : atoi(buf);
 889         printf("  End quoting at [%d] : ",line);
 890         getline(buf,3);
 891         qend = (buf[0]==0) ? (line) : atoi(buf);
 892         rewind(qfile);
 893         line=0;
 894         fgets(buf,128,qfile);
 895         tfile=fopen(temp,"w");
 896         while(fgets(buf,128,qfile)!=NULL) {
 897                 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
 898                 }
 899         fprintf(tfile," \n");
 900         fclose(qfile);
 901         fclose(tfile);
 902         chmod(temp,0666);
 903         }
 904
 905
 906 void readmsgs(int c, int rdir, int q)   /* read contents of a room */
 907                 /* 0=Read all  1=Read new  2=Read old 3=Read last q */
 908                 /* 1=Forward (-1)=Reverse */
 909                 /* Number of msgs to read (if c==3) */
 910         {
 911         int a,b,e,f,g,start;
 912         int hold_sw = 0;
 913         char arcflag = 0;
 914         char quotflag = 0;
 915         int hold_color = 0;
 916         char prtfile[16];
 917         char pagin;
 918         char cmd[256];
 919         char targ[ROOMNAMELEN];
 920         char filename[256];
 921
 922         signal(SIGINT,SIG_IGN);
 923         signal(SIGQUIT,SIG_IGN);
 924
 925         if (c<0) b=(MAXMSGS-1);
 926         else b=0;
 927
 928         sprintf(prtfile,"/tmp/CPrt%ld",(long)getpid());
 929
 930         num_msgs = 0;
 931         strcpy(cmd,"MSGS ");
 932         switch(c) {
 933                 case 0: strcat(cmd,"ALL");
 934                         break;
 935                 case 1: strcat(cmd,"NEW");
 936                         break;
 937                 case 2: strcat(cmd,"OLD");
 938                         break;
 939                 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
 940                         break;
 941                 }
 942         serv_puts(cmd);
 943         serv_gets(cmd);
 944         if (cmd[0]!='1') {
 945                 printf("%s\n",&cmd[5]);
 946                 }
 947         else {
 948                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 949                         if (num_msgs == MAXMSGS) {
 950                                 memcpy(&msg_arr[0], &msg_arr[1],
 951                                         (sizeof(long) * (MAXMSGS - 1)) );
 952                                 --num_msgs;
 953                                 }
 954                         msg_arr[num_msgs++] = atol(cmd);
 955                         }
 956                 }
 957
 958         lines_printed = 0;
 959
 960         /* this loop cycles through each message... */
 961         start = ( (rdir==1) ? 0 : (num_msgs-1) );
 962         for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
 963                 while (msg_arr[a]==0L) {
 964                         a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
 965                         }
 966
 967 RAGAIN:         pagin=((arcflag==0)&&(quotflag==0)&&
 968                         (userflags & US_PAGINATOR)) ? 1 : 0;
 969
 970         /* If we're doing a quote, set the screenwidth to 72 temporarily */
 971                 if (quotflag) {
 972                         hold_sw = screenwidth;
 973                         screenwidth = 72;
 974                         }
 975
 976         /* If printing or archiving, set the screenwidth to 80 temporarily */
 977                 if (arcflag) {
 978                         hold_sw = screenwidth;
 979                         screenwidth = 80;
 980                         }
 981
 982         /* now read the message... */
 983                 e=read_message(msg_arr[a],pagin);
 984
 985         /* ...and set the screenwidth back if we have to */
 986                 if ((quotflag)||(arcflag)) {
 987                         screenwidth = hold_sw;
 988                         }
 989 RMSGREAD:       fflush(stdout);
 990                 highest_msg_read = msg_arr[a];
 991                 if (quotflag) {
 992                         freopen("/dev/tty","r+",stdout);
 993                         quotflag=0;
 994                         enable_color = hold_color;
 995                         process_quote();
 996                         }
 997                 if (arcflag) {
 998                         freopen("/dev/tty","r+",stdout);
 999                         arcflag=0;
1000                         enable_color = hold_color;
1001                         f=fork();
1002                         if (f==0) {
1003                                 freopen(prtfile,"r",stdin);
1004                                 sttybbs(SB_RESTORE);
1005                                 ka_system(printcmd);
1006                                 sttybbs(SB_NO_INTR);
1007                                 unlink(prtfile);
1008                                 exit(0);
1009                                 }
1010                         if (f>0) do {
1011                                 g=wait(NULL);
1012                                 } while((g!=f)&&(g>=0));
1013                         printf("Message printed.\n");
1014                         }
1015                 if (e==3) return;
1016                 if ( ((userflags&US_NOPROMPT)||(e==2))
1017                    && (((room_flags&QR_MAILBOX)==0)
1018                      ||(rc_force_mail_prompts==0))  ) {
1019                         e='n';
1020                         }
1021                 else {
1022                         color(DIM_WHITE);
1023                         printf("(");
1024                         color(BRIGHT_WHITE);
1025                         printf("%d",num_msgs-a-1);
1026                         color(DIM_WHITE);
1027                         printf(") ");
1028
1029                         if (is_mail==1) keyopt("<R>eply ");
1030                         keyopt("<B>ack <A>gain <Q>uote <N>ext <S>top <?>Help/others -> ");
1031                         do {
1032                                 lines_printed = 2;
1033                                 e=(inkey()&127); e=tolower(e);
1034 /* return key same as <N> */    if (e==13) e='n';
1035 /* space key same as <N> */     if (e==32) e='n';
1036 /* del/move for aides only */   if ((!is_room_aide)
1037                                     &&((room_flags&QR_MAILBOX)==0)) {
1038                                         if ((e=='d')||(e=='m')) e=0;
1039                                         }
1040 /* print only if available */   if ((e=='p')&&(strlen(printcmd)==0)) e=0;
1041 /* can't move from Mail> */     if ((e=='m')&&(is_mail==1)) e=0;
1042 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
1043 /* can't file if not allowed */ if ((e=='f')&&(rc_allow_attachments==0)) e=0;
1044                                 } while((e!='a')&&(e!='n')&&(e!='s')
1045                                         &&(e!='d')&&(e!='m')&&(e!='p')
1046                                         &&(e!='q')&&(e!='b')&&(e!='h')
1047                                         &&(e!='r')&&(e!='f')&&(e!='?'));
1048                         switch(e) {
1049                                 case 's':       printf("Stop\r");       break;
1050                                 case 'a':       printf("Again\r");      break;
1051                                 case 'd':       printf("Delete\r");     break;
1052                                 case 'm':       printf("Move\r");       break;
1053                                 case 'n':       printf("Next\r");       break;
1054                                 case 'p':       printf("Print\r");      break;
1055                                 case 'q':       printf("Quote\r");      break;
1056                                 case 'b':       printf("Back\r");       break;
1057                                 case 'h':       printf("Header\r");     break;
1058                                 case 'r':       printf("Reply\r");      break;
1059                                 case 'f':       printf("File\r");       break;
1060                                 case '?':       printf("? <help>\r");   break;
1061                                 }
1062                         if (userflags & US_DISAPPEAR)
1063                                 printf("\r%79s\r","");
1064                         else
1065                                 printf("\n");
1066                         fflush(stdout);
1067                         }
1068                 switch(e) {
1069                    case '?':    printf("Options available here:\n");
1070                                 printf(" ?  Help (prints this message)\n");
1071                                 printf(" S  Stop reading immediately\n");
1072                                 printf(" A  Again (repeats last message)\n");
1073                                 printf(" N  Next (continue with next message)\n");
1074                                 printf(" B  Back (go back to previous message)\n");
1075                                 if ((is_room_aide)
1076                                     ||(room_flags&QR_MAILBOX)) {
1077                                         printf(" D  Delete this message\n");
1078                                         printf(" M  Move message to another room\n");
1079                                         }
1080                                 if (strlen(printcmd)>0)
1081                                         printf(" P  Print this message\n");
1082                                 printf(" Q  Quote portions of this message for your next post\n");
1083                                 printf(" H  Headers (display message headers only)\n");
1084                                 if (is_mail)
1085                                         printf(" R  Reply to this message\n");
1086                                 if (rc_allow_attachments)
1087                                         printf(" F  (save attachments to a file)\n");
1088                                 printf("\n");
1089                                 goto RMSGREAD;
1090                    case 'p':    fflush(stdout);
1091                                 freopen(prtfile,"w",stdout);
1092                                 arcflag = 1;
1093                                 hold_color = enable_color;
1094                                 enable_color = 0;
1095                                 goto RAGAIN;
1096                    case 'q':    fflush(stdout);
1097                                 freopen(temp2,"w",stdout);
1098                                 quotflag = 1;
1099                                 hold_color = enable_color;
1100                                 enable_color = 0;
1101                                 goto RAGAIN;
1102                    case 's':    return;
1103                    case 'a':    goto RAGAIN;
1104                    case 'b':    a=a-(rdir*2);
1105                                 break;
1106                    case 'm':    newprompt("Enter target room: ",
1107                                         targ,ROOMNAMELEN-1);
1108                                 if (strlen(targ)>0) {
1109                                         sprintf(cmd,"MOVE %ld|%s",
1110                                                 msg_arr[a],targ);
1111                                         serv_puts(cmd);
1112                                         serv_gets(cmd);
1113                                         printf("%s\n",&cmd[4]);
1114                                         if (cmd[0]=='2') msg_arr[a]=0L;
1115                                         }
1116                                 else {
1117                                         goto RMSGREAD;
1118                                         }
1119                                 if (cmd[0]!='2') goto RMSGREAD;
1120                                 break;
1121                    case 'f':    newprompt("Which section? ", filename,
1122                                         ((sizeof filename) -1));
1123                                 snprintf(cmd, sizeof cmd,
1124                                         "OPNA %ld|%s", msg_arr[a], filename);
1125                                 serv_puts(cmd);
1126                                 serv_gets(cmd);
1127                                 if (cmd[0]=='2') {
1128                                         extract(filename, &cmd[4], 2);
1129                                         download_to_local_disk(filename,
1130                                                 extract_int(&cmd[4], 0));
1131                                         }
1132                                 else {
1133                                         printf("%s\n",&cmd[4]);
1134                                         }
1135                                 goto RMSGREAD;
1136                    case 'd':    printf("*** Delete this message? ");
1137                                 if (yesno()==1) {
1138                                         sprintf(cmd,"DELE %ld",msg_arr[a]);
1139                                         serv_puts(cmd);
1140                                         serv_gets(cmd);
1141                                         printf("%s\n",&cmd[4]);
1142                                         if (cmd[0]=='2') msg_arr[a]=0L;
1143                                         }
1144                                 else {
1145                                         goto RMSGREAD;
1146                                         }
1147                                 break;
1148                    case 'h':    read_message(msg_arr[a],READ_HEADER);
1149                                 goto RMSGREAD;
1150                    case 'r':    entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1151                                 goto RMSGREAD;
1152                         }
1153                 } /* end for loop */
1154         } /* end read routine */
1155
1156
1157
1158
1159 /*
1160  * View and edit a system message
1161  */
1162 void edit_system_message(char *which_message)
1163 {
1164         char desc[64];
1165         char read_cmd[64];
1166         char write_cmd[64];
1167
1168         sprintf(desc, "system message '%s'", which_message);
1169         sprintf(read_cmd, "MESG %s", which_message);
1170         sprintf(write_cmd, "EMSG %s", which_message);
1171         do_edit(desc, read_cmd, "NOOP", write_cmd);
1172         }