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 <limits.h>
  19 #include <sys/wait.h>
  20 #include <sys/stat.h>
  21 #include <stdarg.h>
  22 #include "citadel.h"
  23 #include "messages.h"
  24 #include "commands.h"
  25 #include "rooms.h"
  26 #include "tools.h"
  27 #ifndef HAVE_SNPRINTF
  28 #include "snprintf.h"
  29 #endif
  30
  31 #define MAXWORDBUF 256
  32 #define MAXMSGS 512
  33
  34 struct cittext {
  35         struct cittext *next;
  36         char text[MAXWORDBUF];
  37         };
  38
  39 void sttybbs(int cmd);
  40 int struncmp(char *lstr, char *rstr, int len);
  41 int fmout(int width, FILE *fp, char pagin, int height, int starting_lp, char subst);
  42 int haschar(char *st, int ch);
  43 int checkpagin(int lp, int pagin, int height);
  44 void getline(char *string, int lim);
  45 void formout(char *name);
  46 int yesno(void);
  47 void newprompt(char *prompt, char *str, int len);
  48 int file_checksum(char *filename);
  49 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
  50
  51 char reply_to[512];
  52 long msg_arr[MAXMSGS];
  53 int num_msgs;
  54 extern char room_name[];
  55 extern unsigned room_flags;
  56 extern long highest_msg_read;
  57 extern struct CtdlServInfo serv_info;
  58 extern char temp[];
  59 extern char temp2[];
  60 extern int screenwidth;
  61 extern int screenheight;
  62 extern long maxmsgnum;
  63 extern char is_mail;
  64 extern char is_aide;
  65 extern char is_room_aide;
  66 extern char fullname[];
  67 extern char axlevel;
  68 extern unsigned userflags;
  69 extern char sigcaught;
  70 extern char editor_path[];
  71 extern char printcmd[];
  72 extern int rc_allow_attachments;
  73 extern int rc_display_message_numbers;
  74 extern int rc_force_mail_prompts;
  75
  76 extern int editor_pid;
  77
  78 int lines_printed;
  79
  80 void ka_sigcatch(int signum) {
  81         char buf[256];
  82         alarm(S_KEEPALIVE);
  83         signal(SIGALRM, ka_sigcatch);
  84         serv_puts("NOOP");
  85         serv_gets(buf);
  86         }
  87
  88
  89 /*
  90  * server keep-alive version of wait() (needed for external editor)
  91  */
  92 pid_t ka_wait(int *kstatus)
  93 {
  94         pid_t p;
  95
  96         alarm(S_KEEPALIVE);
  97         signal(SIGALRM, ka_sigcatch);
  98         do {
  99                 errno = 0;
 100                 p = wait(kstatus);
 101                 } while (errno==EINTR);
 102         signal(SIGALRM,SIG_IGN);
 103         alarm(0);
 104         return(p);
 105         }
 106
 107
 108 /*
 109  * version of system() that uses ka_wait()
 110  */
 111 int ka_system(char *shc)
 112 {
 113         pid_t childpid;
 114         pid_t waitpid;
 115         int retcode;
 116
 117         childpid = fork();
 118         if (childpid < 0) {
 119                 color(BRIGHT_RED);
 120                 perror("Cannot fork");
 121                 color(DIM_WHITE);
 122                 return((pid_t)childpid);
 123                 }
 124
 125         if (childpid == 0) {
 126                 execlp("/bin/sh","sh","-c",shc,NULL);
 127                 exit(127);
 128                 }
 129
 130         if (childpid > 0) {
 131                 do {
 132                         waitpid = ka_wait(&retcode);
 133                         } while (waitpid != childpid);
 134                 return(retcode);
 135                 }
 136
 137         return(-1);
 138         }
 139
 140
 141
 142 /*
 143  * add a newline to the buffer...
 144  */
 145 void add_newline(struct cittext *textlist)
 146 {
 147         struct cittext *ptr;
 148
 149         ptr=textlist;
 150         while (ptr->next != NULL) ptr = ptr->next;
 151
 152         while (ptr->text[strlen(ptr->text)-1]==32)
 153                 ptr->text[strlen(ptr->text)-1] = 0;
 154         /* strcat(ptr->text,"\n"); */
 155
 156         ptr->next = (struct cittext *)
 157                 malloc(sizeof(struct cittext));
 158         ptr = ptr->next;
 159         ptr->next = NULL;
 160         strcpy(ptr->text,"");
 161         }
 162
 163
 164 /*
 165  * add a word to the buffer...
 166  */
 167 void add_word(struct cittext *textlist, char *wordbuf)
 168 {
 169         struct cittext *ptr;
 170
 171
 172         ptr=textlist;
 173         while (ptr->next != NULL) ptr = ptr->next;
 174
 175         if (3+strlen(ptr->text)+strlen(wordbuf) > screenwidth) {
 176                 ptr->next = (struct cittext *)
 177                         malloc(sizeof(struct cittext));
 178                 ptr = ptr->next;
 179                 ptr->next = NULL;
 180                 strcpy(ptr->text,"");
 181                 }
 182
 183         strcat(ptr->text,wordbuf);
 184         strcat(ptr->text," ");
 185         }
 186
 187
 188 /*
 189  * begin editing of an opened file pointed to by fp, beginning at position pos.
 190  */
 191 void citedit(FILE *fp, long int base_pos)
 192 {
 193         int a,prev,finished,b,last_space;
 194         int appending = 0;
 195         struct cittext *textlist = NULL;
 196         struct cittext *ptr;
 197         char wordbuf[MAXWORDBUF];
 198         char buf[256];
 199         time_t last_server_msg,now;
 200
 201         /*
 202          * we're going to keep track of the last time we talked to
 203          * the server, so we can periodically send keep-alive messages
 204          * out so it doesn't time out.
 205          */
 206         time(&last_server_msg);
 207
 208         /* first, load the text into the buffer */
 209         fseek(fp,base_pos,0);
 210         textlist = (struct cittext *)malloc(sizeof(struct cittext));
 211         textlist->next = NULL;
 212         strcpy(textlist->text,"");
 213
 214         strcpy(wordbuf,"");
 215         prev = (-1);
 216         while (a=getc(fp), a>=0) {
 217                 appending = 1;
 218                 if ((a==32)||(a==9)||(a==13)||(a==10)) {
 219                         add_word(textlist,wordbuf);
 220                         strcpy(wordbuf,"");
 221                         if ((prev==13)||(prev==10)) {
 222                                 add_word(textlist,"\n");
 223                                 add_newline(textlist);
 224                                 add_word(textlist,"");
 225                                 }
 226                         }
 227                 else {
 228                         wordbuf[strlen(wordbuf)+1] = 0;
 229                         wordbuf[strlen(wordbuf)] = a;
 230                         }
 231                 if (strlen(wordbuf)+3 > screenwidth) {
 232                         add_word(textlist,wordbuf);
 233                         strcpy(wordbuf,"");
 234                         }
 235                 prev = a;
 236                 }
 237
 238         /* get text */
 239         finished = 0;
 240         prev = (appending ? 13 : (-1));
 241         strcpy(wordbuf,"");
 242         do {
 243                 a=inkey();
 244                 if (a==10) a=13;
 245                 if (a==9) a=32;
 246                 if (a==127) a=8;
 247                 if ((a==32)&&(prev==13)) {
 248                         add_word(textlist,"\n");
 249                         add_newline(textlist);
 250                         }
 251                 if (a==8) {
 252                         if (strlen(wordbuf)>0) {
 253                                 wordbuf[strlen(wordbuf)-1] = 0;
 254                                 putc(8,stdout);
 255                                 putc(32,stdout);
 256                                 putc(8,stdout);
 257                                 }
 258                         }
 259                 else if (a==13) {
 260                         printf("\n");
 261                         if (strlen(wordbuf)==0) finished = 1;
 262                         else {
 263                                 for (b=0; b<strlen(wordbuf); ++b)
 264                                    if (wordbuf[b]==32) {
 265                                         wordbuf[b]=0;
 266                                         add_word(textlist,wordbuf);
 267                                         strcpy(wordbuf,&wordbuf[b+1]);
 268                                         b=0;
 269                                         }
 270                                 add_word(textlist,wordbuf);
 271                                 strcpy(wordbuf,"");
 272                                 }
 273                         }
 274                 else {
 275                         putc(a,stdout);
 276                         wordbuf[strlen(wordbuf)+1] = 0;
 277                         wordbuf[strlen(wordbuf)] = a;
 278                         }
 279                 if ((strlen(wordbuf)+3) > screenwidth) {
 280                         last_space = (-1);
 281                         for (b=0; b<strlen(wordbuf); ++b)
 282                                 if (wordbuf[b]==32) last_space = b;
 283                         if (last_space>=0) {
 284                                 for (b=0; b<strlen(wordbuf); ++b)
 285                                    if (wordbuf[b]==32) {
 286                                         wordbuf[b]=0;
 287                                         add_word(textlist,wordbuf);
 288                                         strcpy(wordbuf,&wordbuf[b+1]);
 289                                         b=0;
 290                                         }
 291                                 for (b=0; b<strlen(wordbuf); ++b) {
 292                                         putc(8,stdout);
 293                                         putc(32,stdout);
 294                                         putc(8,stdout);
 295                                         }
 296                                 printf("\n%s",wordbuf);
 297                                 }
 298                         else {
 299                                 add_word(textlist,wordbuf);
 300                                 strcpy(wordbuf,"");
 301                                 printf("\n");
 302                                 }
 303                         }
 304                 prev = a;
 305
 306                 /* this check implements the server keep-alive */
 307                 time(&now);
 308                 if ( (now - last_server_msg) > S_KEEPALIVE ) {
 309                         serv_puts("NOOP");
 310                         serv_gets(buf);
 311                         last_server_msg = now;
 312                         }
 313
 314                 } while (finished==0);
 315
 316         /* write the buffer back to disk */
 317         fseek(fp,base_pos,0);
 318         for (ptr=textlist; ptr!=NULL; ptr=ptr->next) {
 319                 fprintf(fp,"%s",ptr->text);
 320                 }
 321         putc(10,fp);
 322         putc(0,fp);
 323
 324         /* and deallocate the memory we used */
 325         while (textlist!=NULL) {
 326                 ptr=textlist->next;
 327                 free(textlist);
 328                 textlist=ptr;
 329                 }
 330         }
 331
 332
 333 int read_message(long int num, char pagin) /* Read a message from the server */
 334                                            /* message number */
 335                 /* 0 = normal read, 1 = read with pagination, 2 = header */
 336 {
 337         char buf[256];
 338         char m_subject[256];
 339         char from[256];
 340         time_t now;
 341         struct tm *tm;
 342         int format_type = 0;
 343         int fr = 0;
 344         int nhdr = 0;
 345
 346         sigcaught = 0;
 347         sttybbs(1);
 348
 349         sprintf(buf,"MSG0 %ld|%d",num,(pagin==READ_HEADER ? 1 : 0));
 350         serv_puts(buf);
 351         serv_gets(buf);
 352         if (buf[0]!='1') {
 353                 printf("*** msg #%ld: %s\n",num,buf);
 354                 ++lines_printed;
 355                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 356                 sttybbs(0);
 357                 return(0);
 358                 }
 359
 360         strcpy(m_subject,"");
 361         printf("\n");
 362         ++lines_printed;
 363         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 364         printf(" ");
 365         if (pagin == 1) color(BRIGHT_CYAN);
 366
 367         if (pagin==2) {
 368                 while(serv_gets(buf), strcmp(buf,"000")) {
 369                         if (buf[4]=='=') {
 370                                 printf("%s\n",buf);
 371                                 ++lines_printed;
 372                                 lines_printed =
 373                                         checkpagin(lines_printed,
 374                                                 pagin,screenheight);
 375                                 }
 376                         }
 377                 sttybbs(0);
 378                 return(0);
 379                 }
 380
 381         strcpy(reply_to,"nobody...xxxxx");
 382         while(serv_gets(buf), struncmp(buf,"text",4)) {
 383                 if (!struncmp(buf,"nhdr=yes",8)) nhdr=1;
 384                 if (!struncmp(buf,"from=",5)) {
 385                         strcpy(from,&buf[5]);
 386                         }
 387                 if (nhdr==1) buf[0]='_';
 388                 if (!struncmp(buf,"type=",5))
 389                         format_type=atoi(&buf[5]);
 390                 if ((!struncmp(buf,"msgn=",5))&&(rc_display_message_numbers)) {
 391                         color(DIM_WHITE);
 392                         printf("[");
 393                         color(BRIGHT_WHITE);
 394                         printf("#%s",&buf[5]);
 395                         color(DIM_WHITE);
 396                         printf("] ");
 397                         }
 398                 if (!struncmp(buf,"from=",5)) {
 399                         color(DIM_WHITE);
 400                         printf("from ");
 401                         color(BRIGHT_CYAN);
 402                         printf("%s ",&buf[5]);
 403                         }
 404                 if (!struncmp(buf,"subj=",5))
 405                         strcpy(m_subject,&buf[5]);
 406                 if ((!struncmp(buf,"hnod=",5))
 407                    && (strucmp(&buf[5],serv_info.serv_humannode))) {
 408                         color(DIM_WHITE);
 409                         printf("(");
 410                         color(BRIGHT_WHITE);
 411                         printf("%s",&buf[5]);
 412                         color(DIM_WHITE);
 413                         printf(") ");
 414                         }
 415                 if ((!struncmp(buf,"room=",5))
 416                    && (strucmp(&buf[5],room_name))) {
 417                         color(DIM_WHITE);
 418                         printf("in ");
 419                         color(BRIGHT_MAGENTA);
 420                         printf("%s> ",&buf[5]);
 421                         }
 422
 423                 if (!struncmp(buf,"node=",5)) {
 424                         if ( (room_flags&QR_NETWORK)
 425                            || ((strucmp(&buf[5],serv_info.serv_nodename)
 426                            &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
 427                                 {
 428                                 color(DIM_WHITE);
 429                                 printf("@");
 430                                 color(BRIGHT_YELLOW);
 431                                 printf("%s ",&buf[5]);
 432                                 }
 433                         if ((!strucmp(&buf[5],serv_info.serv_nodename))
 434                            ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
 435                                 {
 436                                 strcpy(reply_to,from);
 437                                 }
 438                         else {
 439                                 sprintf(reply_to,"%s @ %s",from,&buf[5]);
 440                                 }
 441                         }
 442
 443                 if (!struncmp(buf,"rcpt=",5)) {
 444                         color(DIM_WHITE);
 445                         printf("to ");
 446                         color(BRIGHT_CYAN);
 447                         printf("%s ",&buf[5]);
 448                         }
 449                 if (!struncmp(buf,"time=",5)) {
 450                         now=atol(&buf[5]);
 451                         tm=(struct tm *)localtime(&now);
 452                         strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
 453                         strcpy(&buf[16],&buf[19]);
 454                         color(BRIGHT_MAGENTA);
 455                         printf("%s ",&buf[4]);
 456                         }
 457                 }
 458
 459         if (nhdr==1) {
 460                 if (!is_room_aide) {
 461                         printf(" ****");
 462                         }
 463                 else {
 464                         printf(" %s",from);
 465                         }
 466                 }
 467         printf("\n");
 468         if (pagin == 1) color(BRIGHT_WHITE);
 469         ++lines_printed;
 470         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 471
 472         if (strlen(m_subject)>0) {
 473                 printf("Subject: %s\n",m_subject);
 474                 ++lines_printed;
 475                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 476                 }
 477
 478         if (format_type == 0) {
 479                 fr=fmout(screenwidth,NULL,
 480                         ((pagin==1) ? 1 : 0),
 481                         screenheight,(-1),1);
 482                 }
 483         else {
 484                 while(serv_gets(buf), strcmp(buf,"000")) {
 485                         if (sigcaught==0) {
 486                                 printf("%s\n",buf);
 487                                 lines_printed = lines_printed + 1 +
 488                                         (strlen(buf)/screenwidth);
 489                                 lines_printed =
 490                                         checkpagin(lines_printed,pagin,screenheight);
 491                                 }
 492                         }
 493                 fr = sigcaught;
 494                 }
 495         printf("\n");
 496         ++lines_printed;
 497         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 498
 499         if (pagin == 1) color(DIM_WHITE);
 500         sttybbs(0);
 501         return(fr);
 502         }
 503
 504 /*
 505  * replace string function for the built-in editor
 506  */
 507 void replace_string(char *filename, long int startpos)
 508 {
 509         char buf[512];
 510         char srch_str[128];
 511         char rplc_str[128];
 512         FILE *fp;
 513         int a;
 514         long rpos,wpos;
 515         char *ptr;
 516         int substitutions = 0;
 517         long msglen = 0L;
 518
 519         printf("Enter text to be replaced:\n: ");
 520         getline(srch_str,128);
 521         if (strlen(srch_str)==0) return;
 522
 523         printf("Enter text to replace it with:\n: ");
 524         getline(rplc_str,128);
 525
 526         fp=fopen(filename,"r+");
 527         if (fp==NULL) return;
 528
 529         wpos=startpos;
 530         fseek(fp,startpos,0);
 531         strcpy(buf,"");
 532         while (a=getc(fp), a>0) {
 533                 ++msglen;
 534                 buf[strlen(buf)+1] = 0;
 535                 buf[strlen(buf)] = a;
 536                 if ( strlen(buf) >= strlen(srch_str) ) {
 537                         ptr=&buf[strlen(buf)-strlen(srch_str)];
 538                         if (!struncmp(ptr,srch_str,strlen(srch_str))) {
 539                                 strcpy(ptr,rplc_str);
 540                                 ++substitutions;
 541                                 }
 542                         }
 543                 if (strlen(buf)>384) {
 544                         rpos=ftell(fp);
 545                         fseek(fp,wpos,0);
 546                         fwrite((char *)buf,128,1,fp);
 547                         strcpy(buf,&buf[128]);
 548                         wpos = ftell(fp);
 549                         fseek(fp,rpos,0);
 550                         }
 551                 }
 552         fseek(fp,wpos,0);
 553         if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
 554         putc(0,fp);
 555         fclose(fp);
 556         printf("<R>eplace made %d substitution(s).\n\n",substitutions);
 557         }
 558
 559
 560 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode)
 561                         /* temporary file name */
 562                         /* NULL if it's not mail */
 563                         /* see MES_ types in header file */
 564
 565
 566 {
 567         FILE *fp;
 568         int a,b,e_ex_code;
 569         time_t now;
 570         long beg;
 571         char datestr[64];
 572         int cksum = 0;
 573
 574         if (mode==2) if (strlen(editor_path)==0) {
 575                 printf("*** No editor available, using built-in editor\n");
 576                 mode=0;
 577                 }
 578
 579         time(&now);
 580         strcpy(datestr,asctime(localtime(&now)));
 581         datestr[strlen(datestr)-1] = 0;
 582
 583         if (room_flags & QR_ANONONLY) {
 584                 printf(" ****");
 585                 }
 586         else {
 587                 printf(" %s from %s",datestr,fullname);
 588                 if (strlen(recipient)>0) printf(" to %s",recipient);
 589                 }
 590         printf("\n");
 591
 592         beg = 0L;
 593
 594         if (mode==1) printf("(Press ctrl-d when finished)\n");
 595         if (mode==0) {
 596                 fp=fopen(filename,"r");
 597                 if (fp!=NULL) {
 598                         fmout(screenwidth,fp,0,screenheight,0,0);
 599                         beg = ftell(fp);
 600                         fclose(fp);
 601                         }
 602                 else {
 603                         fp=fopen(filename,"w");
 604                         fclose(fp);
 605                         }
 606                 }
 607
 608 ME1:    switch(mode) {
 609
 610            case 0:
 611                 fp=fopen(filename,"r+");
 612                 citedit(fp,beg);
 613                 fclose(fp);
 614                 goto MECR;
 615
 616            case 1:
 617                 fp=fopen(filename,"w");
 618                 do {
 619                         a=inkey(); if (a==255) a=32;
 620                         if (a==13) a=10;
 621                         if (a!=4) {
 622                                 putc(a,fp);
 623                                 putc(a,stdout);
 624                                 }
 625                         if (a==10) putc(13,stdout);
 626                         } while(a!=4);
 627                 fclose(fp);
 628                 break;
 629
 630            case 2:
 631                 e_ex_code = 1;  /* start with a failed exit code */
 632                 editor_pid=fork();
 633                 cksum = file_checksum(filename);
 634                 if (editor_pid==0) {
 635                         chmod(filename,0600);
 636                         sttybbs(SB_RESTORE);
 637                         execlp(editor_path,editor_path,filename,NULL);
 638                         exit(1);
 639                         }
 640                 if (editor_pid>0) do {
 641                         e_ex_code = 0;
 642                         b=ka_wait(&e_ex_code);
 643                         } while((b!=editor_pid)&&(b>=0));
 644                 editor_pid = (-1);
 645                 sttybbs(0);
 646                 break;
 647                 }
 648
 649 MECR:   if (mode==2) {
 650                 if (file_checksum(filename) == cksum) {
 651                         printf("*** Aborted message.\n");
 652                         e_ex_code = 1;
 653                         }
 654                 if (e_ex_code==0) goto MEFIN;
 655                 goto MEABT2;
 656                 }
 657 MECR1:  printf("Entry cmd (? for options) -> ");
 658 MECR2:  b=inkey();
 659         if (b==NEXT_KEY) b='n';
 660         if (b==STOP_KEY) b='s';
 661         b=(b&127); b=tolower(b);
 662         if (b=='?') {
 663                 printf("Help\n");
 664                 formout("saveopt");
 665                 goto MECR1;
 666                 }
 667         if (b=='a') { printf("Abort\n");        goto MEABT;     }
 668         if (b=='c') { printf("Continue\n");     goto ME1;       }
 669         if (b=='s') { printf("Save message\n"); goto MEFIN;     }
 670         if (b=='p') {
 671                 printf("Print formatted\n");
 672                 printf(" %s from %s",datestr,fullname);
 673                 if (strlen(recipient)>0) printf(" to %s",recipient);
 674                 printf("\n");
 675                 fp=fopen(filename,"r");
 676                 if (fp!=NULL) {
 677                         fmout(screenwidth,fp,
 678                                 ((userflags & US_PAGINATOR) ? 1 : 0),
 679                                 screenheight,0,0);
 680                         beg = ftell(fp);
 681                         fclose(fp);
 682                         }
 683                 goto MECR;
 684                 }
 685         if (b=='r') {
 686                 printf("Replace string\n");
 687                 replace_string(filename,0L);
 688                 goto MECR;
 689                 }
 690         if (b=='h') {
 691                 printf("Hold message\n");
 692                 return(2);
 693                 }
 694         goto MECR2;
 695
 696 MEFIN:  return(0);
 697
 698 MEABT:  printf("Are you sure? ");
 699         if (yesno()==0) goto ME1;
 700 MEABT2: unlink(filename);
 701         return(2);
 702         }
 703
 704 /*
 705  * transmit message text to the server
 706  */
 707 void transmit_message(FILE *fp)
 708 {
 709         char buf[256];
 710         int ch,a;
 711
 712         strcpy(buf,"");
 713         while (ch=getc(fp), (ch>=0)) {
 714                 if (ch==10) {
 715                         if (!strcmp(buf,"000")) strcpy(buf,">000");
 716                         serv_puts(buf);
 717                         strcpy(buf,"");
 718                         }
 719                 else {
 720                         a = strlen(buf);
 721                         buf[a+1] = 0;
 722                         buf[a] = ch;
 723                         if ((ch==32)&&(strlen(buf)>200)) {
 724                                 buf[a]=0;
 725                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 726                                 serv_puts(buf);
 727                                 strcpy(buf,"");
 728                                 }
 729                         if (strlen(buf)>250) {
 730                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 731                                 serv_puts(buf);
 732                                 strcpy(buf,"");
 733                                 }
 734                         }
 735                 }
 736         serv_puts(buf);
 737         }
 738
 739
 740
 741 /*
 742  * entmsg()  -  edit and create a message
 743  *              returns 0 if message was saved
 744  */
 745 int entmsg(int is_reply, int c)
 746                         /* nonzero if this was a <R>eply command */
 747        {                /* */
 748         char buf[300];
 749         char cmd[256];
 750         int a,b;
 751         int need_recp = 0;
 752         int mode;
 753         long highmsg;
 754         FILE *fp;
 755
 756         if (c>0) mode=1;
 757         else mode=0;
 758
 759         sprintf(cmd,"ENT0 0||0|%d",mode);
 760         serv_puts(cmd);
 761         serv_gets(cmd);
 762
 763         if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
 764                 printf("%s\n",&cmd[4]);
 765                 return(1);
 766                 }
 767         need_recp = 0;
 768         if (!strncmp(cmd,"570",3)) need_recp = 1;
 769
 770         if ((userflags & US_EXPERT) == 0) formout("entermsg");
 771
 772         strcpy(buf,"");
 773         if (need_recp==1) {
 774                 if (axlevel>=2) {
 775                         if (is_reply) {
 776                                 strcpy(buf,reply_to);
 777                                 }
 778                         else {
 779                                 printf("Enter recipient: ");
 780                                 getline(buf, 60);
 781                                 if (strlen(buf)==0) return(1);
 782                                 }
 783                         }
 784                 else strcpy(buf,"sysop");
 785                 }
 786
 787         b=0;
 788         if (room_flags&QR_ANONOPT) {
 789                 printf("Anonymous (Y/N)? ");
 790                 if (yesno()==1) b=1;
 791                 }
 792
 793 /* if it's mail, we've got to check the validity of the recipient... */
 794         if (strlen(buf)>0) {
 795                 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
 796                 serv_puts(cmd);
 797                 serv_gets(cmd);
 798                 if (cmd[0]!='2') {
 799                         printf("%s\n",&cmd[4]);
 800                         return(1);
 801                         }
 802                 }
 803
 804 /* learn the number of the newest message in in the room, so we can tell
 805  * upon saving whether someone else has posted too
 806  */
 807         num_msgs = 0;
 808         serv_puts("MSGS LAST|1");
 809         serv_gets(cmd);
 810         if (cmd[0]!='1') {
 811                 printf("%s\n",&cmd[5]);
 812                 }
 813         else {
 814                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 815                         msg_arr[num_msgs++] = atol(cmd);
 816                         }
 817                 }
 818
 819 /* now put together the message */
 820         if ( make_message(temp,buf,b,0,c) != 0 ) return(2);
 821
 822 /* and send it to the server */
 823         sprintf(cmd,"ENT0 1|%s|%d|%d||",buf,b,mode);
 824         serv_puts(cmd);
 825         serv_gets(cmd);
 826         if (cmd[0]!='4') {
 827                 printf("%s\n",&cmd[4]);
 828                 return(1);
 829                 }
 830         fp=fopen(temp,"r");
 831         if (fp!=NULL) {
 832                 transmit_message(fp);
 833                 fclose(fp);
 834                 }
 835         serv_puts("000");
 836         unlink(temp);
 837
 838         highmsg = msg_arr[num_msgs - 1];
 839         num_msgs = 0;
 840         serv_puts("MSGS NEW");
 841         serv_gets(cmd);
 842         if (cmd[0]!='1') {
 843                 printf("%s\n",&cmd[5]);
 844                 }
 845         else {
 846                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 847                         msg_arr[num_msgs++] = atol(cmd);
 848                         }
 849                 }
 850
 851         /* get new highest message number in room to set lrp for goto... */
 852         maxmsgnum = msg_arr[num_msgs - 1];
 853
 854         /* now see if anyone else has posted in here */
 855         b=(-1);
 856         for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
 857
 858         /* in the Mail> room, this algorithm always counts one message
 859          * higher than in public rooms, so we decrement it by one */
 860         if (need_recp) --b;
 861
 862         if (b==1) printf(
 863 "*** 1 additional message has been entered in this room by another user.\n");
 864         if (b>1) printf(
 865 "*** %d additional messages have been entered in this room by other users.\n",b);
 866
 867         return(0);
 868         }
 869
 870 void process_quote(void) {      /* do editing on quoted file */
 871 FILE *qfile,*tfile;
 872 char buf[128];
 873 int line,qstart,qend;
 874
 875         /* Unlink the second temp file as soon as it's opened, so it'll get
 876          * deleted even if the program dies
 877          */
 878         qfile = fopen(temp2,"r");
 879         unlink(temp2);
 880
 881         /* Display the quotable text with line numbers added */
 882         line = 0;
 883         fgets(buf,128,qfile);
 884         while (fgets(buf,128,qfile)!=NULL) {
 885                 printf("%2d %s",++line,buf);
 886                 }
 887         printf("Begin quoting at [ 1] : ");
 888         getline(buf,3);
 889         qstart = (buf[0]==0) ? (1) : atoi(buf);
 890         printf("  End quoting at [%d] : ",line);
 891         getline(buf,3);
 892         qend = (buf[0]==0) ? (line) : atoi(buf);
 893         rewind(qfile);
 894         line=0;
 895         fgets(buf,128,qfile);
 896         tfile=fopen(temp,"w");
 897         while(fgets(buf,128,qfile)!=NULL) {
 898                 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
 899                 }
 900         fprintf(tfile," \n");
 901         fclose(qfile);
 902         fclose(tfile);
 903         chmod(temp,0666);
 904         }
 905
 906
 907
 908 /*
 909  * List the URL's which were embedded in the previous message
 910  */
 911 void list_urls() {
 912         int i;
 913         char cmd[256];
 914
 915         if (num_urls == 0) {
 916                 printf("There were no URL's in the previous message.\n\n");
 917                 return;
 918         }
 919
 920         for (i=0; i<num_urls; ++i) {
 921                 printf("%3d %s\n", i+1, urls[i]);
 922         }
 923
 924         if((i = num_urls) != 1)
 925                 i = intprompt("Display which one", 1, 1, num_urls);
 926
 927         sprintf(cmd, rc_url_cmd, urls[i-1]);
 928         system(cmd);
 929         printf("\n");
 930 }
 931
 932
 933 void readmsgs(int c, int rdir, int q)   /* read contents of a room */
 934                 /* 0=Read all  1=Read new  2=Read old 3=Read last q */
 935                 /* 1=Forward (-1)=Reverse */
 936                 /* Number of msgs to read (if c==3) */
 937         {
 938         int a,b,e,f,g,start;
 939         int hold_sw = 0;
 940         char arcflag = 0;
 941         char quotflag = 0;
 942         int hold_color = 0;
 943         char prtfile[PATH_MAX];
 944         char pagin;
 945         char cmd[256];
 946         char targ[ROOMNAMELEN];
 947         char filename[256];
 948
 949         signal(SIGINT,SIG_IGN);
 950         signal(SIGQUIT,SIG_IGN);
 951
 952         if (c<0) b=(MAXMSGS-1);
 953         else b=0;
 954
 955         sprintf(prtfile, tmpnam(NULL));
 956
 957         num_msgs = 0;
 958         strcpy(cmd,"MSGS ");
 959         switch(c) {
 960                 case 0: strcat(cmd,"ALL");
 961                         break;
 962                 case 1: strcat(cmd,"NEW");
 963                         break;
 964                 case 2: strcat(cmd,"OLD");
 965                         break;
 966                 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
 967                         break;
 968                 }
 969         serv_puts(cmd);
 970         serv_gets(cmd);
 971         if (cmd[0]!='1') {
 972                 printf("%s\n",&cmd[5]);
 973                 }
 974         else {
 975                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 976                         if (num_msgs == MAXMSGS) {
 977                                 memcpy(&msg_arr[0], &msg_arr[1],
 978                                         (sizeof(long) * (MAXMSGS - 1)) );
 979                                 --num_msgs;
 980                                 }
 981                         msg_arr[num_msgs++] = atol(cmd);
 982                         }
 983                 }
 984
 985         lines_printed = 0;
 986
 987         /* this loop cycles through each message... */
 988         start = ( (rdir==1) ? 0 : (num_msgs-1) );
 989         for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
 990                 while (msg_arr[a]==0L) {
 991                         a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
 992                         }
 993
 994 RAGAIN:         pagin=((arcflag==0)&&(quotflag==0)&&
 995                         (userflags & US_PAGINATOR)) ? 1 : 0;
 996
 997         /* If we're doing a quote, set the screenwidth to 72 temporarily */
 998                 if (quotflag) {
 999                         hold_sw = screenwidth;
1000                         screenwidth = 72;
1001                         }
1002
1003         /* If printing or archiving, set the screenwidth to 80 temporarily */
1004                 if (arcflag) {
1005                         hold_sw = screenwidth;
1006                         screenwidth = 80;
1007                         }
1008
1009         /* now read the message... */
1010                 e=read_message(msg_arr[a],pagin);
1011
1012         /* ...and set the screenwidth back if we have to */
1013                 if ((quotflag)||(arcflag)) {
1014                         screenwidth = hold_sw;
1015                         }
1016 RMSGREAD:       fflush(stdout);
1017                 highest_msg_read = msg_arr[a];
1018                 if (quotflag) {
1019                         freopen("/dev/tty","r+",stdout);
1020                         quotflag=0;
1021                         enable_color = hold_color;
1022                         process_quote();
1023                         }
1024                 if (arcflag) {
1025                         freopen("/dev/tty","r+",stdout);
1026                         arcflag=0;
1027                         enable_color = hold_color;
1028                         f=fork();
1029                         if (f==0) {
1030                                 freopen(prtfile, "r", stdin);
1031                                 sttybbs(SB_RESTORE);
1032                                 ka_system(printcmd);
1033                                 sttybbs(SB_NO_INTR);
1034                                 unlink(prtfile);
1035                                 exit(0);
1036                                 }
1037                         if (f>0) do {
1038                                 g=wait(NULL);
1039                                 } while((g!=f)&&(g>=0));
1040                         printf("Message printed.\n");
1041                         }
1042                 if (e==3) return;
1043                 if ( ((userflags&US_NOPROMPT)||(e==2))
1044                    && (((room_flags&QR_MAILBOX)==0)
1045                      ||(rc_force_mail_prompts==0))  ) {
1046                         e='n';
1047                         }
1048                 else {
1049                         color(DIM_WHITE);
1050                         printf("(");
1051                         color(BRIGHT_WHITE);
1052                         printf("%d",num_msgs-a-1);
1053                         color(DIM_WHITE);
1054                         printf(") ");
1055
1056                         if (is_mail==1) keyopt("<R>eply ");
1057                         keyopt("<B>ack <A>gain <Q>uote <N>ext <S>top ");
1058                         if (rc_url_cmd[0] && num_urls) keyopt("<U>RL View ");
1059                         keyopt("<?>Help/others -> ");
1060
1061                         do {
1062                                 lines_printed = 2;
1063                                 e=(inkey()&127); e=tolower(e);
1064 /* return key same as <N> */    if (e==13) e='n';
1065 /* space key same as <N> */     if (e==32) e='n';
1066 /* del/move for aides only */   if ((!is_room_aide)
1067                                     &&((room_flags&QR_MAILBOX)==0)) {
1068                                         if ((e=='d')||(e=='m')) e=0;
1069                                         }
1070 /* print only if available */   if ((e=='p')&&(strlen(printcmd)==0)) e=0;
1071 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
1072 /* can't file if not allowed */ if ((e=='f')&&(rc_allow_attachments==0)) e=0;
1073 /* link only if browser avail*/ if ((e=='u')&&(strlen(rc_url_cmd)==0)) e=0;
1074                                 } while((e!='a')&&(e!='n')&&(e!='s')
1075                                         &&(e!='d')&&(e!='m')&&(e!='p')
1076                                         &&(e!='q')&&(e!='b')&&(e!='h')
1077                                         &&(e!='r')&&(e!='f')&&(e!='?')
1078                                         &&(e!='u'));
1079                         switch(e) {
1080                                 case 's':       printf("Stop\r");       break;
1081                                 case 'a':       printf("Again\r");      break;
1082                                 case 'd':       printf("Delete\r");     break;
1083                                 case 'm':       printf("Move\r");       break;
1084                                 case 'n':       printf("Next\r");       break;
1085                                 case 'p':       printf("Print\r");      break;
1086                                 case 'q':       printf("Quote\r");      break;
1087                                 case 'b':       printf("Back\r");       break;
1088                                 case 'h':       printf("Header\r");     break;
1089                                 case 'r':       printf("Reply\r");      break;
1090                                 case 'f':       printf("File\r");       break;
1091                                 case 'u':       printf("URL's\r");      break;
1092                                 case '?':       printf("? <help>\r");   break;
1093                                 }
1094                         if (userflags & US_DISAPPEAR)
1095                                 printf("\r%79s\r","");
1096                         else
1097                                 printf("\n");
1098                         fflush(stdout);
1099                         }
1100                 switch(e) {
1101                    case '?':    printf("Options available here:\n");
1102                                 printf(" ?  Help (prints this message)\n");
1103                                 printf(" S  Stop reading immediately\n");
1104                                 printf(" A  Again (repeats last message)\n");
1105                                 printf(" N  Next (continue with next message)\n");
1106                                 printf(" B  Back (go back to previous message)\n");
1107                                 if ((is_room_aide)
1108                                     ||(room_flags&QR_MAILBOX)) {
1109                                         printf(" D  Delete this message\n");
1110                                         printf(" M  Move message to another room\n");
1111                                         }
1112                                 if (strlen(printcmd)>0)
1113                                         printf(" P  Print this message\n");
1114                                 printf(" Q  Quote portions of this message for your next post\n");
1115                                 printf(" H  Headers (display message headers only)\n");
1116                                 if (is_mail)
1117                                         printf(" R  Reply to this message\n");
1118                                 if (rc_allow_attachments)
1119                                         printf(" F  (save attachments to a file)\n");
1120                                 if (strlen(rc_url_cmd)>0)
1121                                         printf(" U  (list URL's for display)\n");
1122                                 printf("\n");
1123                                 goto RMSGREAD;
1124                    case 'p':    fflush(stdout);
1125                                 freopen(prtfile,"w",stdout);
1126                                 arcflag = 1;
1127                                 hold_color = enable_color;
1128                                 enable_color = 0;
1129                                 goto RAGAIN;
1130                    case 'q':    fflush(stdout);
1131                                 freopen(temp2,"w",stdout);
1132                                 quotflag = 1;
1133                                 hold_color = enable_color;
1134                                 enable_color = 0;
1135                                 goto RAGAIN;
1136                    case 's':    return;
1137                    case 'a':    goto RAGAIN;
1138                    case 'b':    a=a-(rdir*2);
1139                                 break;
1140                    case 'm':    newprompt("Enter target room: ",
1141                                         targ,ROOMNAMELEN-1);
1142                                 if (strlen(targ)>0) {
1143                                         sprintf(cmd,"MOVE %ld|%s",
1144                                                 msg_arr[a],targ);
1145                                         serv_puts(cmd);
1146                                         serv_gets(cmd);
1147                                         printf("%s\n",&cmd[4]);
1148                                         if (cmd[0]=='2') msg_arr[a]=0L;
1149                                         }
1150                                 else {
1151                                         goto RMSGREAD;
1152                                         }
1153                                 if (cmd[0]!='2') goto RMSGREAD;
1154                                 break;
1155                    case 'f':    newprompt("Which section? ", filename,
1156                                         ((sizeof filename) -1));
1157                                 snprintf(cmd, sizeof cmd,
1158                                         "OPNA %ld|%s", msg_arr[a], filename);
1159                                 serv_puts(cmd);
1160                                 serv_gets(cmd);
1161                                 if (cmd[0]=='2') {
1162                                         extract(filename, &cmd[4], 2);
1163                                         download_to_local_disk(filename,
1164                                                 extract_int(&cmd[4], 0));
1165                                         }
1166                                 else {
1167                                         printf("%s\n",&cmd[4]);
1168                                         }
1169                                 goto RMSGREAD;
1170                    case 'd':    printf("*** Delete this message? ");
1171                                 if (yesno()==1) {
1172                                         sprintf(cmd,"DELE %ld",msg_arr[a]);
1173                                         serv_puts(cmd);
1174                                         serv_gets(cmd);
1175                                         printf("%s\n",&cmd[4]);
1176                                         if (cmd[0]=='2') msg_arr[a]=0L;
1177                                         }
1178                                 else {
1179                                         goto RMSGREAD;
1180                                         }
1181                                 break;
1182                    case 'h':    read_message(msg_arr[a],READ_HEADER);
1183                                 goto RMSGREAD;
1184                    case 'r':    entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1185                                 goto RMSGREAD;
1186                    case 'u':    list_urls();
1187                                 goto RMSGREAD;
1188                         }
1189                 } /* end for loop */
1190         } /* end read routine */
1191
1192
1193
1194
1195 /*
1196  * View and edit a system message
1197  */
1198 void edit_system_message(char *which_message)
1199 {
1200         char desc[64];
1201         char read_cmd[64];
1202         char write_cmd[64];
1203
1204         sprintf(desc, "system message '%s'", which_message);
1205         sprintf(read_cmd, "MESG %s", which_message);
1206         sprintf(write_cmd, "EMSG %s", which_message);
1207         do_edit(desc, read_cmd, "NOOP", write_cmd);
1208         }