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