citadel/messages.c

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