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 color(int colornum);
  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(1);
 120                 perror("Cannot fork");
 121                 color(7);
 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(3);
 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(1);
 392                         printf("[#%s] ",&buf[5]);
 393                         }
 394                 if (!struncmp(buf,"from=",5)) {
 395                         color(3);
 396                         printf("from %s ",&buf[5]);
 397                         }
 398                 if (!struncmp(buf,"subj=",5))
 399                         strcpy(m_subject,&buf[5]);
 400                 if ((!struncmp(buf,"hnod=",5))
 401                    && (strucmp(&buf[5],serv_info.serv_humannode))) {
 402                         color(6);
 403                         printf("(%s) ",&buf[5]);
 404                         }
 405                 if ((!struncmp(buf,"room=",5))
 406                    && (strucmp(&buf[5],room_name))) {
 407                         color(4);
 408                         printf("in %s> ",&buf[5]);
 409                         }
 410
 411                 if (!struncmp(buf,"node=",5)) {
 412                         if ( (room_flags&QR_NETWORK)
 413                            || ((strucmp(&buf[5],serv_info.serv_nodename)
 414                            &&(strucmp(&buf[5],serv_info.serv_fqdn)))))
 415                                 {
 416                                 color(5);
 417                                 printf("@%s ",&buf[5]);
 418                                 }
 419                         if ((!strucmp(&buf[5],serv_info.serv_nodename))
 420                            ||(!strucmp(&buf[5],serv_info.serv_fqdn)))
 421                                 {
 422                                 strcpy(reply_to,from);
 423                                 }
 424                         else {
 425                                 sprintf(reply_to,"%s @ %s",from,&buf[5]);
 426                                 }
 427                         }
 428
 429                 if (!struncmp(buf,"rcpt=",5)) {
 430                         color(3);
 431                         printf("to %s ",&buf[5]);
 432                         }
 433                 if (!struncmp(buf,"time=",5)) {
 434                         now=atol(&buf[5]);
 435                         tm=(struct tm *)localtime(&now);
 436                         strcpy(buf,asctime(tm)); buf[strlen(buf)-1]=0;
 437                         strcpy(&buf[16],&buf[19]);
 438                         color(6);
 439                         printf("%s ",&buf[4]);
 440                         }
 441                 }
 442
 443         if (nhdr==1) {
 444                 if (!is_room_aide) {
 445                         printf(" ****");
 446                         }
 447                 else {
 448                         printf(" %s",from);
 449                         }
 450                 }
 451         printf("\n");
 452         if (pagin == 1 ) color(2);
 453         ++lines_printed;
 454         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 455
 456         if (strlen(m_subject)>0) {
 457                 printf("Subject: %s\n",m_subject);
 458                 ++lines_printed;
 459                 lines_printed = checkpagin(lines_printed,pagin,screenheight);
 460                 }
 461
 462         if (format_type == 0) {
 463                 fr=fmout(screenwidth,NULL,
 464                         ((pagin==1) ? 1 : 0),
 465                         screenheight,(-1),1);
 466                 }
 467         else {
 468                 while(serv_gets(buf), strcmp(buf,"000")) {
 469                         if (sigcaught==0) {
 470                                 printf("%s\n",buf);
 471                                 lines_printed = lines_printed + 1 +
 472                                         (strlen(buf)/screenwidth);
 473                                 lines_printed =
 474                                         checkpagin(lines_printed,pagin,screenheight);
 475                                 }
 476                         }
 477                 fr = sigcaught;
 478                 }
 479         printf("\n");
 480         ++lines_printed;
 481         lines_printed = checkpagin(lines_printed,pagin,screenheight);
 482
 483         if (pagin == 1) color(7);
 484         sttybbs(0);
 485         return(fr);
 486         }
 487
 488 /*
 489  * replace string function for the built-in editor
 490  */
 491 void replace_string(char *filename, long int startpos)
 492 {
 493         char buf[512];
 494         char srch_str[128];
 495         char rplc_str[128];
 496         FILE *fp;
 497         int a;
 498         long rpos,wpos;
 499         char *ptr;
 500         int substitutions = 0;
 501         long msglen = 0L;
 502
 503         printf("Enter text to be replaced:\n: ");
 504         getline(srch_str,128);
 505         if (strlen(srch_str)==0) return;
 506
 507         printf("Enter text to replace it with:\n: ");
 508         getline(rplc_str,128);
 509
 510         fp=fopen(filename,"r+");
 511         if (fp==NULL) return;
 512
 513         wpos=startpos;
 514         fseek(fp,startpos,0);
 515         strcpy(buf,"");
 516         while (a=getc(fp), a>0) {
 517                 ++msglen;
 518                 buf[strlen(buf)+1] = 0;
 519                 buf[strlen(buf)] = a;
 520                 if ( strlen(buf) >= strlen(srch_str) ) {
 521                         ptr=&buf[strlen(buf)-strlen(srch_str)];
 522                         if (!struncmp(ptr,srch_str,strlen(srch_str))) {
 523                                 strcpy(ptr,rplc_str);
 524                                 ++substitutions;
 525                                 }
 526                         }
 527                 if (strlen(buf)>384) {
 528                         rpos=ftell(fp);
 529                         fseek(fp,wpos,0);
 530                         fwrite((char *)buf,128,1,fp);
 531                         strcpy(buf,&buf[128]);
 532                         wpos = ftell(fp);
 533                         fseek(fp,rpos,0);
 534                         }
 535                 }
 536         fseek(fp,wpos,0);
 537         if (strlen(buf)>0) fwrite((char *)buf,strlen(buf),1,fp);
 538         putc(0,fp);
 539         fclose(fp);
 540         printf("<R>eplace made %d substitution(s).\n\n",substitutions);
 541         }
 542
 543
 544 int make_message(char *filename, char *recipient, int anon_type, int format_type, int mode)
 545                         /* temporary file name */
 546                         /* NULL if it's not mail */
 547                         /* see MES_ types in header file */
 548
 549
 550 {
 551         FILE *fp;
 552         int a,b,e_ex_code;
 553         time_t now;
 554         long beg;
 555         char datestr[64];
 556         int cksum = 0;
 557
 558         if (mode==2) if (strlen(editor_path)==0) {
 559                 printf("*** No editor available, using built-in editor\n");
 560                 mode=0;
 561                 }
 562
 563         time(&now);
 564         strcpy(datestr,asctime(localtime(&now)));
 565         datestr[strlen(datestr)-1] = 0;
 566
 567         if (room_flags & QR_ANONONLY) {
 568                 printf(" ****");
 569                 }
 570         else {
 571                 printf(" %s from %s",datestr,fullname);
 572                 if (strlen(recipient)>0) printf(" to %s",recipient);
 573                 }
 574         printf("\n");
 575
 576         beg = 0L;
 577
 578         if (mode==1) printf("(Press ctrl-d when finished)\n");
 579         if (mode==0) {
 580                 fp=fopen(filename,"r");
 581                 if (fp!=NULL) {
 582                         fmout(screenwidth,fp,0,screenheight,0,0);
 583                         beg = ftell(fp);
 584                         fclose(fp);
 585                         }
 586                 else {
 587                         fp=fopen(filename,"w");
 588                         fclose(fp);
 589                         }
 590                 }
 591
 592 ME1:    switch(mode) {
 593
 594            case 0:
 595                 fp=fopen(filename,"r+");
 596                 citedit(fp,beg);
 597                 fclose(fp);
 598                 goto MECR;
 599
 600            case 1:
 601                 fp=fopen(filename,"w");
 602                 do {
 603                         a=inkey(); if (a==255) a=32;
 604                         if (a==13) a=10;
 605                         if (a!=4) {
 606                                 putc(a,fp);
 607                                 putc(a,stdout);
 608                                 }
 609                         if (a==10) putc(13,stdout);
 610                         } while(a!=4);
 611                 fclose(fp);
 612                 break;
 613
 614            case 2:
 615                 e_ex_code = 1;  /* start with a failed exit code */
 616                 editor_pid=fork();
 617                 cksum = file_checksum(filename);
 618                 if (editor_pid==0) {
 619                         chmod(filename,0600);
 620                         sttybbs(SB_RESTORE);
 621                         execlp(editor_path,editor_path,filename,NULL);
 622                         exit(1);
 623                         }
 624                 if (editor_pid>0) do {
 625                         e_ex_code = 0;
 626                         b=ka_wait(&e_ex_code);
 627                         } while((b!=editor_pid)&&(b>=0));
 628                 editor_pid = (-1);
 629                 sttybbs(0);
 630                 break;
 631                 }
 632
 633 MECR:   if (mode==2) {
 634                 if (file_checksum(filename) == cksum) {
 635                         printf("*** Aborted message.\n");
 636                         e_ex_code = 1;
 637                         }
 638                 if (e_ex_code==0) goto MEFIN;
 639                 goto MEABT2;
 640                 }
 641 MECR1:  printf("Entry cmd (? for options) -> ");
 642 MECR2:  b=inkey();
 643         if (b==NEXT_KEY) b='n';
 644         if (b==STOP_KEY) b='s';
 645         b=(b&127); b=tolower(b);
 646         if (b=='?') {
 647                 printf("Help\n");
 648                 formout("saveopt");
 649                 goto MECR1;
 650                 }
 651         if (b=='a') { printf("Abort\n");        goto MEABT;     }
 652         if (b=='c') { printf("Continue\n");     goto ME1;       }
 653         if (b=='s') { printf("Save message\n"); goto MEFIN;     }
 654         if (b=='p') {
 655                 printf("Print formatted\n");
 656                 printf(" %s from %s",datestr,fullname);
 657                 if (strlen(recipient)>0) printf(" to %s",recipient);
 658                 printf("\n");
 659                 fp=fopen(filename,"r");
 660                 if (fp!=NULL) {
 661                         fmout(screenwidth,fp,
 662                                 ((userflags & US_PAGINATOR) ? 1 : 0),
 663                                 screenheight,0,0);
 664                         beg = ftell(fp);
 665                         fclose(fp);
 666                         }
 667                 goto MECR;
 668                 }
 669         if (b=='r') {
 670                 printf("Replace string\n");
 671                 replace_string(filename,0L);
 672                 goto MECR;
 673                 }
 674         if (b=='h') {
 675                 printf("Hold message\n");
 676                 return(2);
 677                 }
 678         goto MECR2;
 679
 680 MEFIN:  return(0);
 681
 682 MEABT:  printf("Are you sure? ");
 683         if (yesno()==0) goto ME1;
 684 MEABT2: unlink(filename);
 685         return(2);
 686         }
 687
 688 /*
 689  * transmit message text to the server
 690  */
 691 void transmit_message(FILE *fp)
 692 {
 693         char buf[256];
 694         int ch,a;
 695
 696         strcpy(buf,"");
 697         while (ch=getc(fp), (ch>=0)) {
 698                 if (ch==10) {
 699                         if (!strcmp(buf,"000")) strcpy(buf,">000");
 700                         serv_puts(buf);
 701                         strcpy(buf,"");
 702                         }
 703                 else {
 704                         a = strlen(buf);
 705                         buf[a+1] = 0;
 706                         buf[a] = ch;
 707                         if ((ch==32)&&(strlen(buf)>200)) {
 708                                 buf[a]=0;
 709                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 710                                 serv_puts(buf);
 711                                 strcpy(buf,"");
 712                                 }
 713                         if (strlen(buf)>250) {
 714                                 if (!strcmp(buf,"000")) strcpy(buf,">000");
 715                                 serv_puts(buf);
 716                                 strcpy(buf,"");
 717                                 }
 718                         }
 719                 }
 720         serv_puts(buf);
 721         }
 722
 723
 724
 725 /*
 726  * entmsg()  -  edit and create a message
 727  *              returns 0 if message was saved
 728  */
 729 int entmsg(int is_reply, int c)
 730                         /* nonzero if this was a <R>eply command */
 731        {                /* */
 732         char buf[300];
 733         char cmd[256];
 734         int a,b;
 735         int need_recp = 0;
 736         int mode;
 737         long highmsg;
 738         FILE *fp;
 739
 740         if (c>0) mode=1;
 741         else mode=0;
 742
 743         sprintf(cmd,"ENT0 0||0|%d",mode);
 744         serv_puts(cmd);
 745         serv_gets(cmd);
 746
 747         if ((strncmp(cmd,"570",3)) && (strncmp(cmd,"200",3))) {
 748                 printf("%s\n",&cmd[4]);
 749                 return(1);
 750                 }
 751         need_recp = 0;
 752         if (!strncmp(cmd,"570",3)) need_recp = 1;
 753
 754         if ((userflags & US_EXPERT) == 0) formout("entermsg");
 755
 756         strcpy(buf,"");
 757         if (need_recp==1) {
 758                 if (axlevel>=2) {
 759                         if (is_reply) {
 760                                 strcpy(buf,reply_to);
 761                                 }
 762                         else {
 763                                 printf("Enter recipient: ");
 764                                 getline(buf, 60);
 765                                 if (strlen(buf)==0) return(1);
 766                                 }
 767                         }
 768                 else strcpy(buf,"sysop");
 769                 }
 770
 771         b=0;
 772         if (room_flags&QR_ANONOPT) {
 773                 printf("Anonymous (Y/N)? ");
 774                 if (yesno()==1) b=1;
 775                 }
 776
 777 /* if it's mail, we've got to check the validity of the recipient... */
 778         if (strlen(buf)>0) {
 779                 sprintf(cmd,"ENT0 0|%s|%d|%d",buf,b,mode);
 780                 serv_puts(cmd);
 781                 serv_gets(cmd);
 782                 if (cmd[0]!='2') {
 783                         printf("%s\n",&cmd[4]);
 784                         return(1);
 785                         }
 786                 }
 787
 788 /* learn the number of the newest message in in the room, so we can tell
 789  * upon saving whether someone else has posted too
 790  */
 791         num_msgs = 0;
 792         serv_puts("MSGS LAST|1");
 793         serv_gets(cmd);
 794         if (cmd[0]!='1') {
 795                 printf("%s\n",&cmd[5]);
 796                 }
 797         else {
 798                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 799                         msg_arr[num_msgs++] = atol(cmd);
 800                         }
 801                 }
 802
 803 /* now put together the message */
 804         if ( make_message(temp,buf,b,0,c) != 0 ) return(2);
 805
 806 /* and send it to the server */
 807         sprintf(cmd,"ENT0 1|%s|%d|%d||",buf,b,mode);
 808         serv_puts(cmd);
 809         serv_gets(cmd);
 810         if (cmd[0]!='4') {
 811                 printf("%s\n",&cmd[4]);
 812                 return(1);
 813                 }
 814         fp=fopen(temp,"r");
 815         if (fp!=NULL) {
 816                 transmit_message(fp);
 817                 fclose(fp);
 818                 }
 819         serv_puts("000");
 820         unlink(temp);
 821
 822         highmsg = msg_arr[num_msgs - 1];
 823         num_msgs = 0;
 824         serv_puts("MSGS NEW");
 825         serv_gets(cmd);
 826         if (cmd[0]!='1') {
 827                 printf("%s\n",&cmd[5]);
 828                 }
 829         else {
 830                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 831                         msg_arr[num_msgs++] = atol(cmd);
 832                         }
 833                 }
 834
 835         /* get new highest message number in room to set lrp for goto... */
 836         maxmsgnum = msg_arr[num_msgs - 1];
 837
 838         /* now see if anyone else has posted in here */
 839         b=(-1);
 840         for (a=0; a<num_msgs; ++a) if (msg_arr[a]>highmsg) ++b;
 841
 842         /* in the Mail> room, this algorithm always counts one message
 843          * higher than in public rooms, so we decrement it by one */
 844         if (need_recp) --b;
 845
 846         if (b==1) printf(
 847 "*** 1 additional message has been entered in this room by another user.\n");
 848         if (b>1) printf(
 849 "*** %d additional messages have been entered in this room by other users.\n",b);
 850
 851         return(0);
 852         }
 853
 854 void process_quote(void) {      /* do editing on quoted file */
 855 FILE *qfile,*tfile;
 856 char buf[128];
 857 int line,qstart,qend;
 858
 859         /* Unlink the second temp file as soon as it's opened, so it'll get
 860          * deleted even if the program dies
 861          */
 862         qfile = fopen(temp2,"r");
 863         unlink(temp2);
 864
 865         /* Display the quotable text with line numbers added */
 866         line = 0;
 867         fgets(buf,128,qfile);
 868         while (fgets(buf,128,qfile)!=NULL) {
 869                 printf("%2d %s",++line,buf);
 870                 }
 871         printf("Begin quoting at [ 1] : ");
 872         getline(buf,3);
 873         qstart = (buf[0]==0) ? (1) : atoi(buf);
 874         printf("  End quoting at [%d] : ",line);
 875         getline(buf,3);
 876         qend = (buf[0]==0) ? (line) : atoi(buf);
 877         rewind(qfile);
 878         line=0;
 879         fgets(buf,128,qfile);
 880         tfile=fopen(temp,"w");
 881         while(fgets(buf,128,qfile)!=NULL) {
 882                 if ((++line>=qstart)&&(line<=qend)) fprintf(tfile," >%s",buf);
 883                 }
 884         fprintf(tfile," \n");
 885         fclose(qfile);
 886         fclose(tfile);
 887         chmod(temp,0666);
 888         }
 889
 890
 891 void readmsgs(int c, int rdir, int q)   /* read contents of a room */
 892                 /* 0=Read all  1=Read new  2=Read old 3=Read last q */
 893                 /* 1=Forward (-1)=Reverse */
 894                 /* Number of msgs to read (if c==3) */
 895         {
 896         int a,b,e,f,g,start;
 897         int hold_sw = 0;
 898         char arcflag = 0;
 899         char quotflag = 0;
 900         int hold_color = 0;
 901         char prtfile[16];
 902         char pagin;
 903         char cmd[256];
 904         char targ[ROOMNAMELEN];
 905         char filename[256];
 906
 907         signal(SIGINT,SIG_IGN);
 908         signal(SIGQUIT,SIG_IGN);
 909
 910         if (c<0) b=(MAXMSGS-1);
 911         else b=0;
 912
 913         sprintf(prtfile,"/tmp/CPrt%ld",(long)getpid());
 914
 915         num_msgs = 0;
 916         strcpy(cmd,"MSGS ");
 917         switch(c) {
 918                 case 0: strcat(cmd,"ALL");
 919                         break;
 920                 case 1: strcat(cmd,"NEW");
 921                         break;
 922                 case 2: strcat(cmd,"OLD");
 923                         break;
 924                 case 3: sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
 925                         break;
 926                 }
 927         serv_puts(cmd);
 928         serv_gets(cmd);
 929         if (cmd[0]!='1') {
 930                 printf("%s\n",&cmd[5]);
 931                 }
 932         else {
 933                 while (serv_gets(cmd), strcmp(cmd,"000")) {
 934                         msg_arr[num_msgs++] = atol(cmd);
 935                         }
 936                 }
 937
 938         lines_printed = 0;
 939
 940         /* this loop cycles through each message... */
 941         start = ( (rdir==1) ? 0 : (num_msgs-1) );
 942         for (a=start; ((a<num_msgs)&&(a>=0)); a=a+rdir) {
 943                 while (msg_arr[a]==0L) {
 944                         a=a+rdir; if ((a==MAXMSGS)||(a==(-1))) return;
 945                         }
 946
 947 RAGAIN:         pagin=((arcflag==0)&&(quotflag==0)&&
 948                         (userflags & US_PAGINATOR)) ? 1 : 0;
 949
 950         /* If we're doing a quote, set the screenwidth to 72 temporarily */
 951                 if (quotflag) {
 952                         hold_sw = screenwidth;
 953                         screenwidth = 72;
 954                         }
 955
 956         /* If printing or archiving, set the screenwidth to 80 temporarily */
 957                 if (arcflag) {
 958                         hold_sw = screenwidth;
 959                         screenwidth = 80;
 960                         }
 961
 962         /* now read the message... */
 963                 e=read_message(msg_arr[a],pagin);
 964
 965         /* ...and set the screenwidth back if we have to */
 966                 if ((quotflag)||(arcflag)) {
 967                         screenwidth = hold_sw;
 968                         }
 969 RMSGREAD:       fflush(stdout);
 970                 highest_msg_read = msg_arr[a];
 971                 if (quotflag) {
 972                         freopen("/dev/tty","r+",stdout);
 973                         quotflag=0;
 974                         enable_color = hold_color;
 975                         process_quote();
 976                         }
 977                 if (arcflag) {
 978                         freopen("/dev/tty","r+",stdout);
 979                         arcflag=0;
 980                         enable_color = hold_color;
 981                         f=fork();
 982                         if (f==0) {
 983                                 freopen(prtfile,"r",stdin);
 984                                 sttybbs(SB_RESTORE);
 985                                 ka_system(printcmd);
 986                                 sttybbs(SB_NO_INTR);
 987                                 unlink(prtfile);
 988                                 exit(0);
 989                                 }
 990                         if (f>0) do {
 991                                 g=wait(NULL);
 992                                 } while((g!=f)&&(g>=0));
 993                         printf("Message printed.\n");
 994                         }
 995                 if (e==3) return;
 996                 if ( ((userflags&US_NOPROMPT)||(e==2))
 997                    && (((room_flags&QR_MAILBOX)==0)
 998                      ||(rc_force_mail_prompts==0))  ) {
 999                         e='n';
1000                         }
1001                 else {
1002                         printf("(%d) ",num_msgs-a-1);
1003                         if (is_mail==1) printf("<R>eply ");
1004                         if (strlen(printcmd)>0) printf("<P>rint ");
1005                         if (rc_allow_attachments) printf("<F>ile ");
1006                 printf("<B>ack <A>gain <Q>uote <H>eader <N>ext <S>top -> ");
1007                         do {
1008                                 lines_printed = 2;
1009                                 e=(inkey()&127); e=tolower(e);
1010 /* return key same as <N> */    if (e==13) e='n';
1011 /* space key same as <N> */     if (e==32) e='n';
1012 /* del/move for aides only */   if ((!is_room_aide)
1013                                     &&((room_flags&QR_MAILBOX)==0)) {
1014                                         if ((e=='d')||(e=='m')) e=0;
1015                                         }
1016 /* print only if available */   if ((e=='p')&&(strlen(printcmd)==0)) e=0;
1017 /* can't move from Mail> */     if ((e=='m')&&(is_mail==1)) e=0;
1018 /* can't reply in public rms */ if ((e=='r')&&(is_mail!=1)) e=0;
1019 /* can't file if not allowed */ if ((e=='f')&&(rc_allow_attachments==0)) e=0;
1020                                 } while((e!='a')&&(e!='n')&&(e!='s')
1021                                         &&(e!='d')&&(e!='m')&&(e!='p')
1022                                         &&(e!='q')&&(e!='b')&&(e!='h')
1023                                         &&(e!='r')&&(e!='f'));
1024                         switch(e) {
1025                                 case 's':       printf("Stop\r");       break;
1026                                 case 'a':       printf("Again\r");      break;
1027                                 case 'd':       printf("Delete\r");     break;
1028                                 case 'm':       printf("Move\r");       break;
1029                                 case 'n':       printf("Next\r");       break;
1030                                 case 'p':       printf("Print\r");      break;
1031                                 case 'q':       printf("Quote\r");      break;
1032                                 case 'b':       printf("Back\r");       break;
1033                                 case 'h':       printf("Header\r");     break;
1034                                 case 'r':       printf("Reply\r");      break;
1035                                 case 'f':       printf("File attachment\r");
1036                                                                         break;
1037                                 }
1038                         if (userflags & US_DISAPPEAR)
1039                                 printf("%75s\r","");
1040                         else
1041                                 printf("\n");
1042                         fflush(stdout);
1043                         }
1044                 switch(e) {
1045                    case 'p':    fflush(stdout);
1046                                 freopen(prtfile,"w",stdout);
1047                                 arcflag = 1;
1048                                 hold_color = enable_color;
1049                                 enable_color = 0;
1050                                 goto RAGAIN;
1051                    case 'q':    fflush(stdout);
1052                                 freopen(temp2,"w",stdout);
1053                                 quotflag = 1;
1054                                 hold_color = enable_color;
1055                                 enable_color = 0;
1056                                 goto RAGAIN;
1057                    case 's':    return;
1058                    case 'a':    goto RAGAIN;
1059                    case 'b':    a=a-(rdir*2);
1060                                 break;
1061                    case 'm':    newprompt("Enter target room: ",
1062                                         targ,ROOMNAMELEN-1);
1063                                 if (strlen(targ)>0) {
1064                                         sprintf(cmd,"MOVE %ld|%s",
1065                                                 msg_arr[a],targ);
1066                                         serv_puts(cmd);
1067                                         serv_gets(cmd);
1068                                         printf("%s\n",&cmd[4]);
1069                                         if (cmd[0]=='2') msg_arr[a]=0L;
1070                                         }
1071                                 else {
1072                                         goto RMSGREAD;
1073                                         }
1074                                 if (cmd[0]!='2') goto RMSGREAD;
1075                                 break;
1076                    case 'f':    newprompt("Which section? ", filename,
1077                                         ((sizeof filename) -1));
1078                                 snprintf(cmd, sizeof cmd,
1079                                         "OPNA %ld|%s", msg_arr[a], filename);
1080                                 serv_puts(cmd);
1081                                 serv_gets(cmd);
1082                                 if (cmd[0]=='2') {
1083                                         extract(filename, &cmd[4], 2);
1084                                         download_to_local_disk(filename,
1085                                                 extract_int(&cmd[4], 0));
1086                                         }
1087                                 else {
1088                                         printf("%s\n",&cmd[4]);
1089                                         }
1090                                 goto RMSGREAD;
1091                    case 'd':    printf("*** Delete this message? ");
1092                                 if (yesno()==1) {
1093                                         sprintf(cmd,"DELE %ld",msg_arr[a]);
1094                                         serv_puts(cmd);
1095                                         serv_gets(cmd);
1096                                         printf("%s\n",&cmd[4]);
1097                                         if (cmd[0]=='2') msg_arr[a]=0L;
1098                                         }
1099                                 else {
1100                                         goto RMSGREAD;
1101                                         }
1102                                 break;
1103                    case 'h':    read_message(msg_arr[a],READ_HEADER);
1104                                 goto RMSGREAD;
1105                    case 'r':    entmsg(1,(DEFAULT_ENTRY==46 ? 2 : 0));
1106                                 goto RMSGREAD;
1107                         }
1108                 } /* end for loop */
1109         } /* end read routine */
1110
1111
1112
1113
1114 /*
1115  * View and edit a system message
1116  */
1117 void edit_system_message(char *which_message)
1118 {
1119         char desc[64];
1120         char read_cmd[64];
1121         char write_cmd[64];
1122
1123         sprintf(desc, "system message '%s'", which_message);
1124         sprintf(read_cmd, "MESG %s", which_message);
1125         sprintf(write_cmd, "EMSG %s", which_message);
1126         do_edit(desc, read_cmd, "NOOP", write_cmd);
1127         }