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