citadel/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Citadel/UX message support routines
   5  * see copyright.txt for copyright information
   6  */
   7
   8 #include "sysdep.h"
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <sys/types.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <sys/wait.h>
  20 #include <sys/stat.h>
  21
  22 #if TIME_WITH_SYS_TIME
  23 # include <sys/time.h>
  24 # include <time.h>
  25 #else
  26 # if HAVE_SYS_TIME_H
  27 #  include <sys/time.h>
  28 # else
  29 #  include <time.h>
  30 # endif
  31 #endif
  32
  33 #include <stdarg.h>
  34 #include "citadel.h"
  35 #include "messages.h"
  36 #include "commands.h"
  37 #include "rooms.h"
  38 #include "tools.h"
  39 #ifndef HAVE_SNPRINTF
  40 #include "snprintf.h"
  41 #endif
  42
  43 #define MAXWORDBUF SIZ
  44 #define MAXMSGS 512
  45
  46 struct cittext {
  47         struct cittext *next;
  48         char text[MAXWORDBUF];
  49 };
  50
  51 void sttybbs(int cmd);
  52 int fmout(int width, FILE * fp, char pagin, int height, int starting_lp,
  53           char subst);
  54 int haschar(char *st, int ch);
  55 int checkpagin(int lp, int pagin, int height);
  56 void getline(char *string, int lim);
  57 void formout(char *name);
  58 int yesno(void);
  59 void newprompt(char *prompt, char *str, int len);
  60 int file_checksum(char *filename);
  61 void do_edit(char *desc, char *read_cmd, char *check_cmd, char *write_cmd);
  62
  63 char reply_to[512];
  64 long msg_arr[MAXMSGS];
  65 int num_msgs;
  66 extern char room_name[];
  67 extern unsigned room_flags;
  68 extern long highest_msg_read;
  69 extern struct CtdlServInfo serv_info;
  70 extern char temp[];
  71 extern char temp2[];
  72 extern int screenwidth;
  73 extern int screenheight;
  74 extern long maxmsgnum;
  75 extern char is_mail;
  76 extern char is_aide;
  77 extern char is_room_aide;
  78 extern char fullname[];
  79 extern char axlevel;
  80 extern unsigned userflags;
  81 extern char sigcaught;
  82 extern char editor_path[];
  83 extern char printcmd[];
  84 extern int rc_allow_attachments;
  85 extern int rc_display_message_numbers;
  86 extern int rc_force_mail_prompts;
  87
  88 extern int editor_pid;
  89
  90 void ka_sigcatch(int signum)
  91 {
  92         char buf[SIZ];
  93         alarm(S_KEEPALIVE);
  94         signal(SIGALRM, ka_sigcatch);
  95         serv_puts("NOOP");
  96         serv_gets(buf);
  97 }
  98
  99
 100 /*
 101  * server keep-alive version of wait() (needed for external editor)
 102  */
 103 pid_t ka_wait(int *kstatus)
 104 {
 105         pid_t p;
 106
 107         alarm(S_KEEPALIVE);
 108         signal(SIGALRM, ka_sigcatch);
 109         do {
 110                 errno = 0;
 111                 p = wait(kstatus);
 112         } while (errno == EINTR);
 113         signal(SIGALRM, SIG_IGN);
 114         alarm(0);
 115         return (p);
 116 }
 117
 118
 119 /*
 120  * version of system() that uses ka_wait()
 121  */
 122 int ka_system(char *shc)
 123 {
 124         pid_t childpid;
 125         pid_t waitpid;
 126         int retcode;
 127
 128         childpid = fork();
 129         if (childpid < 0) {
 130                 color(BRIGHT_RED);
 131                 perror("Cannot fork");
 132                 color(DIM_WHITE);
 133                 return ((pid_t) childpid);
 134         }
 135
 136         if (childpid == 0) {
 137                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 138                 exit(127);
 139         }
 140
 141         if (childpid > 0) {
 142                 do {
 143                         waitpid = ka_wait(&retcode);
 144                 } while (waitpid != childpid);
 145                 return (retcode);
 146         }
 147
 148         return (-1);
 149 }
 150
 151
 152
 153 /*
 154  * add a newline to the buffer...
 155  */
 156 void add_newline(struct cittext *textlist)
 157 {
 158         struct cittext *ptr;
 159
 160         ptr = textlist;
 161         while (ptr->next != NULL)
 162                 ptr = ptr->next;
 163
 164         while (ptr->text[strlen(ptr->text) - 1] == 32)
 165                 ptr->text[strlen(ptr->text) - 1] = 0;
 166         /* strcat(ptr->text,"\n"); */
 167
 168         ptr->next = (struct cittext *)
 169             malloc(sizeof(struct cittext));
 170         ptr = ptr->next;
 171         ptr->next = NULL;
 172         strcpy(ptr->text, "");
 173 }
 174
 175
 176 /*
 177  * add a word to the buffer...
 178  */
 179 void add_word(struct cittext *textlist, char *wordbuf)
 180 {
 181         struct cittext *ptr;
 182
 183         ptr = textlist;
 184         while (ptr->next != NULL)
 185                 ptr = ptr->next;
 186
 187         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 188                 ptr->next = (struct cittext *)
 189                     malloc(sizeof(struct cittext));
 190                 ptr = ptr->next;
 191                 ptr->next = NULL;
 192                 strcpy(ptr->text, "");
 193         }
 194
 195         strcat(ptr->text, wordbuf);
 196         strcat(ptr->text, " ");
 197 }
 198
 199
 200 /*
 201  * begin editing of an opened file pointed to by fp
 202  */
 203 void citedit(FILE * fp)
 204 {
 205         int a, prev, finished, b, last_space;
 206         int appending = 0;
 207         struct cittext *textlist = NULL;
 208         struct cittext *ptr;
 209         char wordbuf[MAXWORDBUF];
 210
 211         /* first, load the text into the buffer */
 212         fseek(fp, 0L, 0);
 213         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 214         textlist->next = NULL;
 215         strcpy(textlist->text, "");
 216
 217         strcpy(wordbuf, "");
 218         prev = (-1);
 219         while (a = getc(fp), a >= 0) {
 220                 appending = 1;
 221                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 222                         add_word(textlist, wordbuf);
 223                         strcpy(wordbuf, "");
 224                         if ((prev == 13) || (prev == 10)) {
 225                                 add_word(textlist, "\n");
 226                                 add_newline(textlist);
 227                                 add_word(textlist, "");
 228                         }
 229                 } else {
 230                         wordbuf[strlen(wordbuf) + 1] = 0;
 231                         wordbuf[strlen(wordbuf)] = a;
 232                 }
 233                 if (strlen(wordbuf) + 3 > screenwidth) {
 234                         add_word(textlist, wordbuf);
 235                         strcpy(wordbuf, "");
 236                 }
 237                 prev = a;
 238         }
 239
 240         /* get text */
 241         finished = 0;
 242         prev = (appending ? 13 : (-1));
 243         strcpy(wordbuf, "");
 244         async_ka_start();
 245         do {
 246                 a = inkey();
 247                 if (a == 10)
 248                         a = 13;
 249                 if (a == 9)
 250                         a = 32;
 251                 if (a == 127)
 252                         a = 8;
 253
 254         /******* new ***********/
 255                 if ((a > 32) && (a < 127) && (prev == 13)) {
 256                         add_word(textlist, "\n");
 257                         printf(" ");
 258                 }
 259         /***********************/
 260
 261                 if ((a == 32) && (prev == 13)) {
 262                         add_word(textlist, "\n");
 263                         add_newline(textlist);
 264                 }
 265
 266                 if (a == 8) {
 267                         if (strlen(wordbuf) > 0) {
 268                                 wordbuf[strlen(wordbuf) - 1] = 0;
 269                                 putc(8, stdout);
 270                                 putc(32, stdout);
 271                                 putc(8, stdout);
 272                         }
 273                 } else if (a == 13) {
 274                         printf("\n");
 275                         if (strlen(wordbuf) == 0)
 276                                 finished = 1;
 277                         else {
 278                                 for (b = 0; b < strlen(wordbuf); ++b)
 279                                         if (wordbuf[b] == 32) {
 280                                                 wordbuf[b] = 0;
 281                                                 add_word(textlist,
 282                                                          wordbuf);
 283                                                 strcpy(wordbuf,
 284                                                        &wordbuf[b + 1]);
 285                                                 b = 0;
 286                                         }
 287                                 add_word(textlist, wordbuf);
 288                                 strcpy(wordbuf, "");
 289                         }
 290                 } else {
 291                         putc(a, stdout);
 292                         wordbuf[strlen(wordbuf) + 1] = 0;
 293                         wordbuf[strlen(wordbuf)] = a;
 294                 }
 295                 if ((strlen(wordbuf) + 3) > screenwidth) {
 296                         last_space = (-1);
 297                         for (b = 0; b < strlen(wordbuf); ++b)
 298                                 if (wordbuf[b] == 32)
 299                                         last_space = b;
 300                         if (last_space >= 0) {
 301                                 for (b = 0; b < strlen(wordbuf); ++b)
 302                                         if (wordbuf[b] == 32) {
 303                                                 wordbuf[b] = 0;
 304                                                 add_word(textlist,
 305                                                          wordbuf);
 306                                                 strcpy(wordbuf,
 307                                                        &wordbuf[b + 1]);
 308                                                 b = 0;
 309                                         }
 310                                 for (b = 0; b < strlen(wordbuf); ++b) {
 311                                         putc(8, stdout);
 312                                         putc(32, stdout);
 313                                         putc(8, stdout);
 314                                 }
 315                                 printf("\n%s", wordbuf);
 316                         } else {
 317                                 add_word(textlist, wordbuf);
 318                                 strcpy(wordbuf, "");
 319                                 printf("\n");
 320                         }
 321                 }
 322                 prev = a;
 323         } while (finished == 0);
 324         async_ka_end();
 325
 326         /* write the buffer back to disk */
 327         fseek(fp, 0L, 0);
 328         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 329                 fprintf(fp, "%s", ptr->text);
 330         }
 331         putc(10, fp);
 332         fflush(fp);
 333         ftruncate(fileno(fp), ftell(fp));
 334
 335         /* and deallocate the memory we used */
 336         while (textlist != NULL) {
 337                 ptr = textlist->next;
 338                 free(textlist);
 339                 textlist = ptr;
 340         }
 341 }
 342
 343 /* Read a message from the server
 344  */
 345 int read_message(
 346         long num,   /* message number */
 347         char pagin) /* 0 = normal read, 1 = read with pagination, 2 = header */
 348 {
 349         char buf[SIZ];
 350         char m_subject[SIZ];
 351         char from[SIZ], node[SIZ], rfca[SIZ];
 352         char now[SIZ];
 353         int format_type = 0;
 354         int fr = 0;
 355         int nhdr = 0;
 356
 357         sigcaught = 0;
 358         sttybbs(1);
 359
 360         sprintf(buf, "MSG0 %ld|%d", num, (pagin == READ_HEADER ? 1 : 0));
 361         serv_puts(buf);
 362         serv_gets(buf);
 363         if (buf[0] != '1') {
 364                 printf("*** msg #%ld: %s\n", num, buf);
 365                 ++lines_printed;
 366                 lines_printed =
 367                     checkpagin(lines_printed, pagin, screenheight);
 368                 sttybbs(0);
 369                 return (0);
 370         }
 371
 372         strcpy(m_subject, "");
 373         strcpy(reply_to, "nobody ... xxxxx");
 374         strcpy(from, "");
 375         strcpy(node, "");
 376         strcpy(rfca, "");
 377
 378         printf("\n");
 379         ++lines_printed;
 380         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 381         printf(" ");
 382         if (pagin == 1) {
 383                 color(BRIGHT_CYAN);
 384         }
 385
 386         if (pagin == 2) {
 387                 while (serv_gets(buf), strcmp(buf, "000")) {
 388                         if (buf[4] == '=') {
 389                                 printf("%s\n", buf);
 390                                 ++lines_printed;
 391                                 lines_printed =
 392                                     checkpagin(lines_printed,
 393                                                pagin, screenheight);
 394                         }
 395                 }
 396                 sttybbs(0);
 397                 return (0);
 398         }
 399
 400         while (serv_gets(buf), strncasecmp(buf, "text", 4)) {
 401                 if (!strncasecmp(buf, "nhdr=yes", 8))
 402                         nhdr = 1;
 403                 if (!strncasecmp(buf, "from=", 5)) {
 404                         strcpy(from, &buf[5]);
 405                 }
 406                 if (nhdr == 1)
 407                         buf[0] = '_';
 408                 if (!strncasecmp(buf, "type=", 5))
 409                         format_type = atoi(&buf[5]);
 410                 if ((!strncasecmp(buf, "msgn=", 5))
 411                     && (rc_display_message_numbers)) {
 412                         color(DIM_WHITE);
 413                         printf("[");
 414                         color(BRIGHT_WHITE);
 415                         printf("#%s", &buf[5]);
 416                         color(DIM_WHITE);
 417                         printf("] ");
 418                 }
 419                 if (!strncasecmp(buf, "from=", 5)) {
 420                         color(DIM_WHITE);
 421                         printf("from ");
 422                         color(BRIGHT_CYAN);
 423                         printf("%s ", &buf[5]);
 424                 }
 425                 if (!strncasecmp(buf, "subj=", 5))
 426                         strcpy(m_subject, &buf[5]);
 427
 428                 if (!strncasecmp(buf, "rfca=", 5)) {
 429                         safestrncpy(rfca, &buf[5], sizeof(rfca) - 5);
 430                         color(DIM_WHITE);
 431                         printf("<");
 432                         color(BRIGHT_BLUE);
 433                         printf("%s", &buf[5]);
 434                         color(DIM_WHITE);
 435                         printf("> ");
 436                 }
 437                 if ((!strncasecmp(buf, "hnod=", 5))
 438                     && (strcasecmp(&buf[5], serv_info.serv_humannode))
 439                     && (strlen(rfca) == 0)) {
 440                         color(DIM_WHITE);
 441                         printf("(");
 442                         color(BRIGHT_WHITE);
 443                         printf("%s", &buf[5]);
 444                         color(DIM_WHITE);
 445                         printf(") ");
 446                 }
 447                 if ((!strncasecmp(buf, "room=", 5))
 448                     && (strcasecmp(&buf[5], room_name))
 449                     && (strlen(rfca) == 0)) {
 450                         color(DIM_WHITE);
 451                         printf("in ");
 452                         color(BRIGHT_MAGENTA);
 453                         printf("%s> ", &buf[5]);
 454                 }
 455
 456                 if (!strncasecmp(buf, "node=", 5)) {
 457                         safestrncpy(node, &buf[5], sizeof(buf) - 5);
 458                         if ((room_flags & QR_NETWORK)
 459                             ||
 460                             ((strcasecmp
 461                               (&buf[5], serv_info.serv_nodename)
 462                               &&
 463                               (strcasecmp(&buf[5], serv_info.serv_fqdn)))))
 464                         {
 465                                 if (strlen(rfca) == 0) {
 466                                         color(DIM_WHITE);
 467                                         printf("@");
 468                                         color(BRIGHT_YELLOW);
 469                                         printf("%s ", &buf[5]);
 470                                 }
 471                         }
 472                 }
 473
 474                 if (!strncasecmp(buf, "rcpt=", 5)) {
 475                         color(DIM_WHITE);
 476                         printf("to ");
 477                         color(BRIGHT_CYAN);
 478                         printf("%s ", &buf[5]);
 479                 }
 480                 if (!strncasecmp(buf, "time=", 5)) {
 481                         fmt_date(now, atol(&buf[5]));
 482                         printf("%s ", now);
 483                 }
 484         }
 485
 486         if (nhdr == 1) {
 487                 if (!is_room_aide) {
 488                         printf(" ****");
 489                 } else {
 490                         printf(" %s", from);
 491                 }
 492         }
 493         printf("\n");
 494
 495         if (strlen(rfca) > 0) {
 496                 strcpy(reply_to, rfca);
 497         } else {
 498                 snprintf(reply_to, sizeof(reply_to), "%s @ %s", from,
 499                          node);
 500         }
 501
 502         if (pagin == 1)
 503                 color(BRIGHT_WHITE);
 504         ++lines_printed;
 505         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 506
 507         if (strlen(m_subject) > 0) {
 508                 printf("Subject: %s\n", m_subject);
 509                 ++lines_printed;
 510                 lines_printed =
 511                     checkpagin(lines_printed, pagin, screenheight);
 512         }
 513
 514         if (format_type == 0) {
 515                 fr = fmout(screenwidth, NULL,
 516                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 517         } else {
 518                 while (serv_gets(buf), strcmp(buf, "000")) {
 519                         if (sigcaught == 0) {
 520                                 printf("%s\n", buf);
 521                                 lines_printed = lines_printed + 1 +
 522                                     (strlen(buf) / screenwidth);
 523                                 lines_printed =
 524                                     checkpagin(lines_printed, pagin,
 525                                                screenheight);
 526                         }
 527                 }
 528                 fr = sigcaught;
 529         }
 530         printf("\n");
 531         ++lines_printed;
 532         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 533
 534         if (pagin == 1)
 535                 color(DIM_WHITE);
 536         sttybbs(0);
 537         return (fr);
 538 }
 539
 540 /*
 541  * replace string function for the built-in editor
 542  */
 543 void replace_string(char *filename, long int startpos)
 544 {
 545         char buf[512];
 546         char srch_str[128];
 547         char rplc_str[128];
 548         FILE *fp;
 549         int a;
 550         long rpos, wpos;
 551         char *ptr;
 552         int substitutions = 0;
 553         long msglen = 0L;
 554
 555         printf("Enter text to be replaced:\n: ");
 556         getline(srch_str, 128);
 557         if (strlen(srch_str) == 0)
 558                 return;
 559
 560         printf("Enter text to replace it with:\n: ");
 561         getline(rplc_str, 128);
 562
 563         fp = fopen(filename, "r+");
 564         if (fp == NULL)
 565                 return;
 566
 567         wpos = startpos;
 568         fseek(fp, startpos, 0);
 569         strcpy(buf, "");
 570         while (a = getc(fp), a > 0) {
 571                 ++msglen;
 572                 buf[strlen(buf) + 1] = 0;
 573                 buf[strlen(buf)] = a;
 574                 if (strlen(buf) >= strlen(srch_str)) {
 575                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 576                         if (!strncasecmp(ptr, srch_str, strlen(srch_str))) {
 577                                 strcpy(ptr, rplc_str);
 578                                 ++substitutions;
 579                         }
 580                 }
 581                 if (strlen(buf) > 384) {
 582                         rpos = ftell(fp);
 583                         fseek(fp, wpos, 0);
 584                         fwrite((char *) buf, 128, 1, fp);
 585                         strcpy(buf, &buf[128]);
 586                         wpos = ftell(fp);
 587                         fseek(fp, rpos, 0);
 588                 }
 589         }
 590         fseek(fp, wpos, 0);
 591         if (strlen(buf) > 0)
 592                 fwrite((char *) buf, strlen(buf), 1, fp);
 593         wpos = ftell(fp);
 594         fclose(fp);
 595         truncate(filename, wpos);
 596         printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 597 }
 598
 599 /*
 600  * Function to begin composing a new message
 601  */
 602 int make_message(char *filename,        /* temporary file name */
 603                 char *recipient,        /* NULL if it's not mail */
 604                 int anon_type,          /* see MES_ types in header file */
 605                 int format_type,
 606                 int mode)
 607 {
 608         FILE *fp;
 609         int a, b, e_ex_code;
 610         long beg;
 611         char datestr[64];
 612         int cksum = 0;
 613
 614         if (mode == 2)
 615                 if (strlen(editor_path) == 0) {
 616                         printf
 617                             ("*** No editor available, using built-in editor\n");
 618                         mode = 0;
 619                 }
 620
 621         fmt_date(datestr, time(NULL));
 622
 623         if (room_flags & QR_ANONONLY) {
 624                 printf(" ****");
 625         }
 626         else {
 627                 printf(" %s from %s", datestr, fullname);
 628                 if (strlen(recipient) > 0) {
 629                         printf(" to %s", recipient);
 630                 }
 631         }
 632         printf("\n");
 633
 634         beg = 0L;
 635
 636         if (mode == 1) {
 637                 printf("(Press ctrl-d when finished)\n");
 638         }
 639         if (mode == 0) {
 640                 fp = fopen(filename, "r");
 641                 if (fp != NULL) {
 642                         fmout(screenwidth, fp, 0, screenheight, 0, 0);
 643                         beg = ftell(fp);
 644                         fclose(fp);
 645                 } else {
 646                         fp = fopen(filename, "w");
 647                         if (fp == NULL) {
 648                                 printf("*** Error opening temp file!\n"
 649                                         "    %s: %s\n",
 650                                         filename, strerror(errno));
 651                         return(1);
 652                         }
 653                         fclose(fp);
 654                 }
 655         }
 656
 657 ME1:    switch (mode) {
 658
 659         case 0:
 660                 fp = fopen(filename, "r+");
 661                 if (fp == NULL) {
 662                         printf("*** Error opening temp file!\n"
 663                                 "    %s: %s\n",
 664                                 filename, strerror(errno));
 665                         return(1);
 666                 }
 667                 citedit(fp);
 668                 fclose(fp);
 669                 goto MECR;
 670
 671         case 1:
 672                 fp = fopen(filename, "w");
 673                 if (fp == NULL) {
 674                         printf("*** Error opening temp file!\n"
 675                                 "    %s: %s\n",
 676                                 filename, strerror(errno));
 677                         return(1);
 678                 }
 679                 do {
 680                         a = inkey();
 681                         if (a == 255)
 682                                 a = 32;
 683                         if (a == 13)
 684                                 a = 10;
 685                         if (a != 4) {
 686                                 putc(a, fp);
 687                                 putc(a, stdout);
 688                         }
 689                         if (a == 10)
 690                                 putc(13, stdout);
 691                 } while (a != 4);
 692                 fclose(fp);
 693                 break;
 694
 695         case 2:
 696                 e_ex_code = 1;  /* start with a failed exit code */
 697                 editor_pid = fork();
 698                 cksum = file_checksum(filename);
 699                 if (editor_pid == 0) {
 700                         chmod(filename, 0600);
 701                         sttybbs(SB_RESTORE);
 702                         execlp(editor_path, editor_path, filename, NULL);
 703                         exit(1);
 704                 }
 705                 if (editor_pid > 0)
 706                         do {
 707                                 e_ex_code = 0;
 708                                 b = ka_wait(&e_ex_code);
 709                         } while ((b != editor_pid) && (b >= 0));
 710                 editor_pid = (-1);
 711                 sttybbs(0);
 712                 break;
 713         }
 714
 715 MECR:   if (mode == 2) {
 716                 if (file_checksum(filename) == cksum) {
 717                         printf("*** Aborted message.\n");
 718                         e_ex_code = 1;
 719                 }
 720                 if (e_ex_code == 0)
 721                         goto MEFIN;
 722                 goto MEABT2;
 723         }
 724
 725         b = keymenu("Entry command (? for options)",
 726                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 727                     "<R>eplace string|<H>old message");
 728
 729         if (b == 'a')
 730                 goto MEABT;
 731         if (b == 'c')
 732                 goto ME1;
 733         if (b == 's')
 734                 goto MEFIN;
 735         if (b == 'p') {
 736                 printf(" %s from %s", datestr, fullname);
 737                 if (strlen(recipient) > 0)
 738                         printf(" to %s", recipient);
 739                 printf("\n");
 740                 fp = fopen(filename, "r");
 741                 if (fp != NULL) {
 742                         fmout(screenwidth, fp,
 743                               ((userflags & US_PAGINATOR) ? 1 : 0),
 744                               screenheight, 0, 0);
 745                         beg = ftell(fp);
 746                         fclose(fp);
 747                 }
 748                 goto MECR;
 749         }
 750         if (b == 'r') {
 751                 replace_string(filename, 0L);
 752                 goto MECR;
 753         }
 754         if (b == 'h') {
 755                 return (2);
 756         }
 757
 758 MEFIN:  return (0);
 759
 760 MEABT:  printf("Are you sure? ");
 761         if (yesno() == 0) {
 762                 goto ME1;
 763         }
 764 MEABT2: unlink(filename);
 765         return (2);
 766 }
 767
 768 /*
 769  * Transmit message text to the server.
 770  *
 771  * This loop also implements a "tick" counter that displays the progress, if
 772  * we're sending something that will take a long time to transmit.
 773  */
 774 void transmit_message(FILE *fp)
 775 {
 776         char buf[SIZ];
 777         int ch, a;
 778         long msglen;
 779         time_t lasttick;
 780
 781         fseek(fp, 0L, SEEK_END);
 782         msglen = ftell(fp);
 783         rewind(fp);
 784         lasttick = time(NULL);
 785         strcpy(buf, "");
 786         while (ch = getc(fp), (ch >= 0)) {
 787                 if (ch == 10) {
 788                         if (!strcmp(buf, "000"))
 789                                 strcpy(buf, ">000");
 790                         serv_puts(buf);
 791                         strcpy(buf, "");
 792                 } else {
 793                         a = strlen(buf);
 794                         buf[a + 1] = 0;
 795                         buf[a] = ch;
 796                         if ((ch == 32) && (strlen(buf) > 200)) {
 797                                 buf[a] = 0;
 798                                 if (!strcmp(buf, "000"))
 799                                         strcpy(buf, ">000");
 800                                 serv_puts(buf);
 801                                 strcpy(buf, "");
 802                         }
 803                         if (strlen(buf) > 250) {
 804                                 if (!strcmp(buf, "000"))
 805                                         strcpy(buf, ">000");
 806                                 serv_puts(buf);
 807                                 strcpy(buf, "");
 808                         }
 809                 }
 810
 811                 if ((time(NULL) - lasttick) > 2L) {
 812                         printf(" %3ld%% completed\r",
 813                                ((ftell(fp) * 100L) / msglen));
 814                         fflush(stdout);
 815                         lasttick = time(NULL);
 816                 }
 817
 818         }
 819         serv_puts(buf);
 820         printf("                \r");
 821         fflush(stdout);
 822 }
 823
 824
 825
 826 /*
 827  * entmsg()  -  edit and create a message
 828  *              returns 0 if message was saved
 829  */
 830 int entmsg(int is_reply,        /* nonzero if this was a <R>eply command */
 831                 int c)          /* */
 832 {
 833         char buf[300];
 834         char cmd[SIZ];
 835         int a, b;
 836         int need_recp = 0;
 837         int mode;
 838         long highmsg;
 839         FILE *fp;
 840
 841         if (c > 0)
 842                 mode = 1;
 843         else
 844                 mode = 0;
 845
 846         /*
 847          * First, check to see if we have permission to enter a message in
 848          * this room.  The server will return an error code if we can't.
 849          */
 850         sprintf(cmd, "ENT0 0||0|%d", mode);
 851         serv_puts(cmd);
 852         serv_gets(cmd);
 853
 854         if ((strncmp(cmd, "570", 3)) && (strncmp(cmd, "200", 3))) {
 855                 printf("%s\n", &cmd[4]);
 856                 return (1);
 857         }
 858
 859         /* Error code 570 is special.  It means that we CAN enter a message
 860          * in this room, but a recipient needs to be specified.
 861          */
 862         need_recp = 0;
 863         if (!strncmp(cmd, "570", 3))
 864                 need_recp = 1;
 865
 866         /* If the user is a dumbass, tell them how to type. */
 867         if ((userflags & US_EXPERT) == 0)
 868                 formout("entermsg");
 869
 870         /* Handle the selection of a recipient, if necessary. */
 871         strcpy(buf, "");
 872         if (need_recp == 1) {
 873                 if (axlevel >= 2) {
 874                         if (is_reply) {
 875                                 strcpy(buf, reply_to);
 876                         } else {
 877                                 printf("Enter recipient: ");
 878                                 getline(buf, 60);
 879                                 if (strlen(buf) == 0)
 880                                         return (1);
 881                         }
 882                 } else
 883                         strcpy(buf, "sysop");
 884         }
 885
 886         b = 0;
 887         if (room_flags & QR_ANONOPT) {
 888                 printf("Anonymous (Y/N)? ");
 889                 if (yesno() == 1)
 890                         b = 1;
 891         }
 892
 893         /* If it's mail, we've got to check the validity of the recipient... */
 894         if (strlen(buf) > 0) {
 895                 sprintf(cmd, "ENT0 0|%s|%d|%d", buf, b, mode);
 896                 serv_puts(cmd);
 897                 serv_gets(cmd);
 898                 if (cmd[0] != '2') {
 899                         printf("%s\n", &cmd[4]);
 900                         return (1);
 901                 }
 902         }
 903
 904         /* Learn the number of the newest message in in the room, so we can
 905          * tell upon saving whether someone else has posted too.
 906          */
 907         num_msgs = 0;
 908         serv_puts("MSGS LAST|1");
 909         serv_gets(cmd);
 910         if (cmd[0] != '1') {
 911                 printf("%s\n", &cmd[5]);
 912         } else {
 913                 while (serv_gets(cmd), strcmp(cmd, "000")) {
 914                         msg_arr[num_msgs++] = atol(cmd);
 915                 }
 916         }
 917
 918         /* Now compose the message... */
 919         if (make_message(temp, buf, b, 0, c) != 0) {
 920                 return (2);
 921         }
 922
 923         /* Reopen the temp file that was created, so we can send it */
 924         fp = fopen(temp, "r");
 925
 926         /* Yes, unlink it now, so it doesn't stick around if we crash */
 927         unlink(temp);
 928
 929         if (fp == NULL) {
 930                 printf("*** Internal error while trying to save message!\n"
 931                         "    %s: %s\n",
 932                         temp, strerror(errno));
 933                 return(errno);
 934         }
 935
 936         /* Transmit message to the server */
 937         sprintf(cmd, "ENT0 1|%s|%d|%d||", buf, b, mode);
 938         serv_puts(cmd);
 939         serv_gets(cmd);
 940         if (cmd[0] != '4') {
 941                 printf("%s\n", &cmd[4]);
 942                 return (1);
 943         }
 944
 945         transmit_message(fp);
 946         serv_puts("000");
 947
 948         fclose(fp);
 949
 950         highmsg = msg_arr[num_msgs - 1];
 951         num_msgs = 0;
 952         serv_puts("MSGS NEW");
 953         serv_gets(cmd);
 954         if (cmd[0] != '1') {
 955                 printf("%s\n", &cmd[5]);
 956         } else {
 957                 while (serv_gets(cmd), strcmp(cmd, "000")) {
 958                         msg_arr[num_msgs++] = atol(cmd);
 959                 }
 960         }
 961
 962         /* get new highest message number in room to set lrp for goto... */
 963         maxmsgnum = msg_arr[num_msgs - 1];
 964
 965         /* now see if anyone else has posted in here */
 966         b = (-1);
 967         for (a = 0; a < num_msgs; ++a) {
 968                 if (msg_arr[a] > highmsg) {
 969                         ++b;
 970                 }
 971         }
 972
 973         /* In the Mail> room, this algorithm always counts one message
 974          * higher than in public rooms, so we decrement it by one.
 975          */
 976         if (need_recp) {
 977                 --b;
 978         }
 979
 980         if (b == 1) {
 981                 printf("*** 1 additional message has been entered "
 982                         "in this room by another user.\n");
 983         }
 984         else if (b > 1) {
 985                 printf("*** %d additional messages have been entered "
 986                         "in this room by other users.\n", b);
 987         }
 988
 989         return(0);
 990 }
 991
 992 /*
 993  * Do editing on a quoted file
 994  */
 995 void process_quote(void)
 996 {
 997         FILE *qfile, *tfile;
 998         char buf[128];
 999         int line, qstart, qend;
1000
1001         /* Unlink the second temp file as soon as it's opened, so it'll get
1002          * deleted even if the program dies
1003          */
1004         qfile = fopen(temp2, "r");
1005         unlink(temp2);
1006
1007         /* Display the quotable text with line numbers added */
1008         line = 0;
1009         fgets(buf, 128, qfile);
1010         while (fgets(buf, 128, qfile) != NULL) {
1011                 printf("%2d %s", ++line, buf);
1012         }
1013         printf("Begin quoting at [ 1] : ");
1014         getline(buf, 3);
1015         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1016         printf("  End quoting at [%d] : ", line);
1017         getline(buf, 3);
1018         qend = (buf[0] == 0) ? (line) : atoi(buf);
1019         rewind(qfile);
1020         line = 0;
1021         fgets(buf, 128, qfile);
1022         tfile = fopen(temp, "w");
1023         while (fgets(buf, 128, qfile) != NULL) {
1024                 if ((++line >= qstart) && (line <= qend))
1025                         fprintf(tfile, " >%s", buf);
1026         }
1027         fprintf(tfile, " \n");
1028         fclose(qfile);
1029         fclose(tfile);
1030         chmod(temp, 0666);
1031 }
1032
1033
1034
1035 /*
1036  * List the URL's which were embedded in the previous message
1037  */
1038 void list_urls()
1039 {
1040         int i;
1041         char cmd[SIZ];
1042
1043         if (num_urls == 0) {
1044                 printf("There were no URL's in the previous message.\n\n");
1045                 return;
1046         }
1047
1048         for (i = 0; i < num_urls; ++i) {
1049                 printf("%3d %s\n", i + 1, urls[i]);
1050         }
1051
1052         if ((i = num_urls) != 1)
1053                 i = intprompt("Display which one", 1, 1, num_urls);
1054
1055         sprintf(cmd, rc_url_cmd, urls[i - 1]);
1056         system(cmd);
1057         printf("\n");
1058 }
1059
1060 /*
1061  * Read the messages in the current room
1062  */
1063 void readmsgs(
1064         int c,          /* 0=Read all  1=Read new  2=Read old 3=Read last q */
1065         int rdir,       /* 1=Forward (-1)=Reverse */
1066         int q           /* Number of msgs to read (if c==3) */
1067 ) {
1068         int a, b, e, f, g, start;
1069         int savedpos;
1070         int hold_sw = 0;
1071         char arcflag = 0;
1072         char quotflag = 0;
1073         int hold_color = 0;
1074         char prtfile[PATH_MAX];
1075         char pagin;
1076         char cmd[SIZ];
1077         char targ[ROOMNAMELEN];
1078         char filename[SIZ];
1079
1080         if (c < 0)
1081                 b = (MAXMSGS - 1);
1082         else
1083                 b = 0;
1084
1085         strcpy(prtfile, tmpnam(NULL));
1086
1087         num_msgs = 0;
1088         strcpy(cmd, "MSGS ");
1089         switch (c) {
1090         case 0:
1091                 strcat(cmd, "ALL");
1092                 break;
1093         case 1:
1094                 strcat(cmd, "NEW");
1095                 break;
1096         case 2:
1097                 strcat(cmd, "OLD");
1098                 break;
1099         case 3:
1100                 sprintf(&cmd[strlen(cmd)], "LAST|%d", q);
1101                 break;
1102         }
1103         serv_puts(cmd);
1104         serv_gets(cmd);
1105         if (cmd[0] != '1') {
1106                 printf("%s\n", &cmd[5]);
1107         } else {
1108                 while (serv_gets(cmd), strcmp(cmd, "000")) {
1109                         if (num_msgs == MAXMSGS) {
1110                                 memcpy(&msg_arr[0], &msg_arr[1],
1111                                        (sizeof(long) * (MAXMSGS - 1)));
1112                                 --num_msgs;
1113                         }
1114                         msg_arr[num_msgs++] = atol(cmd);
1115                 }
1116         }
1117
1118         if (num_msgs == 0) {
1119                 printf("*** There are no ");
1120                 if (c == 1) printf("new ");
1121                 if (c == 2) printf("old ");
1122                 printf("messages in this room.\n");
1123                 return;
1124         }
1125
1126         lines_printed = 0;
1127
1128         /* this loop cycles through each message... */
1129         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1130         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1131                 while (msg_arr[a] == 0L) {
1132                         a = a + rdir;
1133                         if ((a == MAXMSGS) || (a == (-1)))
1134                                 return;
1135                 }
1136
1137 RAGAIN:         pagin = ((arcflag == 0)
1138                          && (quotflag == 0)
1139                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1140
1141                 /* If we're doing a quote, set the screenwidth to 72 */
1142                 if (quotflag) {
1143                         hold_sw = screenwidth;
1144                         screenwidth = 72;
1145                 }
1146
1147                 /* If printing or archiving, set the screenwidth to 80 */
1148                 if (arcflag) {
1149                         hold_sw = screenwidth;
1150                         screenwidth = 80;
1151                 }
1152
1153                 /* now read the message... */
1154                 e = read_message(msg_arr[a], pagin);
1155
1156                 /* ...and set the screenwidth back if we have to */
1157                 if ((quotflag) || (arcflag)) {
1158                         screenwidth = hold_sw;
1159                 }
1160 RMSGREAD:       fflush(stdout);
1161                 highest_msg_read = msg_arr[a];
1162                 if (quotflag) {
1163                         freopen("/dev/tty", "r+", stdout);
1164                         quotflag = 0;
1165                         enable_color = hold_color;
1166                         process_quote();
1167                 }
1168                 if (arcflag) {
1169                         freopen("/dev/tty", "r+", stdout);
1170                         arcflag = 0;
1171                         enable_color = hold_color;
1172                         f = fork();
1173                         if (f == 0) {
1174                                 freopen(prtfile, "r", stdin);
1175                                 sttybbs(SB_RESTORE);
1176                                 ka_system(printcmd);
1177                                 sttybbs(SB_NO_INTR);
1178                                 unlink(prtfile);
1179                                 exit(0);
1180                         }
1181                         if (f > 0)
1182                                 do {
1183                                         g = wait(NULL);
1184                                 } while ((g != f) && (g >= 0));
1185                         printf("Message printed.\n");
1186                 }
1187                 if (e == 3)
1188                         return;
1189                 if (((userflags & US_NOPROMPT) || (e == 2))
1190                     && (((room_flags & QR_MAILBOX) == 0)
1191                         || (rc_force_mail_prompts == 0))) {
1192                         e = 'n';
1193                 } else {
1194                         color(DIM_WHITE);
1195                         printf("(");
1196                         color(BRIGHT_WHITE);
1197                         printf("%d", num_msgs - a - 1);
1198                         color(DIM_WHITE);
1199                         printf(") ");
1200
1201                         keyopt
1202                             ("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top ");
1203                         if (rc_url_cmd[0] && num_urls)
1204                                 keyopt("<U>RL View ");
1205                         keyopt("<?>Help/others -> ");
1206
1207                         do {
1208                                 lines_printed = 2;
1209                                 e = (inkey() & 127);
1210                                 e = tolower(e);
1211 /* return key same as <N> */ if (e == 13)
1212                                         e = 'n';
1213 /* space key same as <N> */ if (e == 32)
1214                                         e = 'n';
1215 /* del/move for aides only */
1216                                     if ((!is_room_aide)
1217                                         && ((room_flags & QR_MAILBOX) ==
1218                                             0)) {
1219                                         if ((e == 'd') || (e == 'm')
1220                                             || (e == 'c'))
1221                                                 e = 0;
1222                                 }
1223 /* print only if available */
1224                                 if ((e == 'p') && (strlen(printcmd) == 0))
1225                                         e = 0;
1226 /* can't file if not allowed */
1227                                     if ((e == 'f')
1228                                         && (rc_allow_attachments == 0))
1229                                         e = 0;
1230 /* link only if browser avail*/
1231                                     if ((e == 'u')
1232                                         && (strlen(rc_url_cmd) == 0))
1233                                         e = 0;
1234                         } while ((e != 'a') && (e != 'n') && (e != 's')
1235                                  && (e != 'd') && (e != 'm') && (e != 'p')
1236                                  && (e != 'q') && (e != 'b') && (e != 'h')
1237                                  && (e != 'r') && (e != 'f') && (e != '?')
1238                                  && (e != 'u') && (e != 'c'));
1239                         switch (e) {
1240                         case 's':
1241                                 printf("Stop\r");
1242                                 break;
1243                         case 'a':
1244                                 printf("Again\r");
1245                                 break;
1246                         case 'd':
1247                                 printf("Delete\r");
1248                                 break;
1249                         case 'm':
1250                                 printf("Move\r");
1251                                 break;
1252                         case 'c':
1253                                 printf("Copy\r");
1254                                 break;
1255                         case 'n':
1256                                 printf("Next\r");
1257                                 break;
1258                         case 'p':
1259                                 printf("Print\r");
1260                                 break;
1261                         case 'q':
1262                                 printf("Quote\r");
1263                                 break;
1264                         case 'b':
1265                                 printf("Back\r");
1266                                 break;
1267                         case 'h':
1268                                 printf("Header\r");
1269                                 break;
1270                         case 'r':
1271                                 printf("Reply\r");
1272                                 break;
1273                         case 'f':
1274                                 printf("File\r");
1275                                 break;
1276                         case 'u':
1277                                 printf("URL's\r");
1278                                 break;
1279                         case '?':
1280                                 printf("? <help>\r");
1281                                 break;
1282                         }
1283                         if (userflags & US_DISAPPEAR)
1284                                 printf("\r%79s\r", "");
1285                         else
1286                                 printf("\n");
1287                         fflush(stdout);
1288                 }
1289                 switch (e) {
1290                 case '?':
1291                         printf("Options available here:\n");
1292                         printf(" ?  Help (prints this message)\n");
1293                         printf(" S  Stop reading immediately\n");
1294                         printf(" A  Again (repeats last message)\n");
1295                         printf(" N  Next (continue with next message)\n");
1296                         printf(" B  Back (go back to previous message)\n");
1297                         if ((is_room_aide)
1298                             || (room_flags & QR_MAILBOX)) {
1299                                 printf(" D  Delete this message\n");
1300                                 printf
1301                                     (" M  Move message to another room\n");
1302                                 printf
1303                                     (" C  Copy message to another room\n");
1304                         }
1305                         if (strlen(printcmd) > 0)
1306                                 printf(" P  Print this message\n");
1307                         printf
1308                             (" Q  Quote portions of this message for your next post\n");
1309                         printf
1310                             (" H  Headers (display message headers only)\n");
1311                         if (is_mail)
1312                                 printf(" R  Reply to this message\n");
1313                         if (rc_allow_attachments)
1314                                 printf
1315                                     (" F  (save attachments to a file)\n");
1316                         if (strlen(rc_url_cmd) > 0)
1317                                 printf(" U  (list URL's for display)\n");
1318                         printf("\n");
1319                         goto RMSGREAD;
1320                 case 'p':
1321                         fflush(stdout);
1322                         freopen(prtfile, "w", stdout);
1323                         arcflag = 1;
1324                         hold_color = enable_color;
1325                         enable_color = 0;
1326                         goto RAGAIN;
1327                 case 'q':
1328                         fflush(stdout);
1329                         freopen(temp2, "w", stdout);
1330                         quotflag = 1;
1331                         hold_color = enable_color;
1332                         enable_color = 0;
1333                         goto RAGAIN;
1334                 case 's':
1335                         return;
1336                 case 'a':
1337                         goto RAGAIN;
1338                 case 'b':
1339                         a = a - (rdir * 2);
1340                         break;
1341                 case 'm':
1342                 case 'c':
1343                         newprompt("Enter target room: ",
1344                                   targ, ROOMNAMELEN - 1);
1345                         if (strlen(targ) > 0) {
1346                                 sprintf(cmd, "MOVE %ld|%s|%d",
1347                                         msg_arr[a], targ,
1348                                         (e == 'c' ? 1 : 0));
1349                                 serv_puts(cmd);
1350                                 serv_gets(cmd);
1351                                 printf("%s\n", &cmd[4]);
1352                                 if (cmd[0] == '2')
1353                                         msg_arr[a] = 0L;
1354                         } else {
1355                                 goto RMSGREAD;
1356                         }
1357                         if (cmd[0] != '2')
1358                                 goto RMSGREAD;
1359                         break;
1360                 case 'f':
1361                         newprompt("Which section? ", filename,
1362                                   ((sizeof filename) - 1));
1363                         snprintf(cmd, sizeof cmd,
1364                                  "OPNA %ld|%s", msg_arr[a], filename);
1365                         serv_puts(cmd);
1366                         serv_gets(cmd);
1367                         if (cmd[0] == '2') {
1368                                 extract(filename, &cmd[4], 2);
1369                                 download_to_local_disk(filename,
1370                                                        extract_int(&cmd[4],
1371                                                                    0));
1372                         } else {
1373                                 printf("%s\n", &cmd[4]);
1374                         }
1375                         goto RMSGREAD;
1376                 case 'd':
1377                         printf("*** Delete this message? ");
1378                         if (yesno() == 1) {
1379                                 sprintf(cmd, "DELE %ld", msg_arr[a]);
1380                                 serv_puts(cmd);
1381                                 serv_gets(cmd);
1382                                 printf("%s\n", &cmd[4]);
1383                                 if (cmd[0] == '2')
1384                                         msg_arr[a] = 0L;
1385                         } else {
1386                                 goto RMSGREAD;
1387                         }
1388                         break;
1389                 case 'h':
1390                         read_message(msg_arr[a], READ_HEADER);
1391                         goto RMSGREAD;
1392                 case 'r':
1393                         savedpos = num_msgs;
1394                         entmsg(1, (DEFAULT_ENTRY == 46 ? 2 : 0));
1395                         num_msgs = savedpos;
1396                         goto RMSGREAD;
1397                 case 'u':
1398                         list_urls();
1399                         goto RMSGREAD;
1400                 }
1401         }                       /* end for loop */
1402 }                               /* end read routine */
1403
1404
1405
1406
1407 /*
1408  * View and edit a system message
1409  */
1410 void edit_system_message(char *which_message)
1411 {
1412         char desc[64];
1413         char read_cmd[64];
1414         char write_cmd[64];
1415
1416         sprintf(desc, "system message '%s'", which_message);
1417         sprintf(read_cmd, "MESG %s", which_message);
1418         sprintf(write_cmd, "EMSG %s", which_message);
1419         do_edit(desc, read_cmd, "NOOP", write_cmd);
1420 }
1421
1422
1423
1424
1425 /*
1426  * Verify the message base
1427  */
1428 void check_message_base(void)
1429 {
1430         char buf[SIZ];
1431
1432         printf
1433             ("Please read the documentation before running this command.\n"
1434             "Having done so, do you still want to check the message base? ");
1435         if (yesno() == 0)
1436                 return;
1437
1438         serv_puts("FSCK");
1439         serv_gets(buf);
1440         if (buf[0] != '1') {
1441                 printf("%s\n", &buf[4]);
1442                 return;
1443         }
1444
1445         while (serv_gets(buf), strcmp(buf, "000")) {
1446                 printf("%s\n", buf);
1447         }
1448 }