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 "citadel_ipc.h"
  36 #include "citadel_decls.h"
  37 #include "messages.h"
  38 #include "commands.h"
  39 #include "rooms.h"
  40 #include "tools.h"
  41 #include "html.h"
  42 #ifndef HAVE_SNPRINTF
  43 #include "snprintf.h"
  44 #endif
  45 #include "screen.h"
  46
  47 #define MAXWORDBUF SIZ
  48 #define NO_REPLY_TO     "nobody ... xxxxxx"
  49
  50 char reply_to[SIZ];
  51 char reply_subject[SIZ];
  52
  53 struct cittext {
  54         struct cittext *next;
  55         char text[MAXWORDBUF];
  56 };
  57
  58 void sttybbs(int cmd);
  59 int haschar(const char *st, int ch);
  60 void getline(char *string, int lim);
  61 int file_checksum(char *filename);
  62 void progress(unsigned long curr, unsigned long cmax);
  63
  64 unsigned long *msg_arr = NULL;
  65 int msg_arr_size = 0;
  66 int num_msgs;
  67 char rc_alt_semantics;
  68 char rc_reply_extedit;
  69 extern char room_name[];
  70 extern unsigned room_flags;
  71 extern long highest_msg_read;
  72 extern struct CtdlServInfo serv_info;
  73 extern char temp[];
  74 extern char temp2[];
  75 extern int screenwidth;
  76 extern int screenheight;
  77 extern long maxmsgnum;
  78 extern char is_mail;
  79 extern char is_aide;
  80 extern char is_room_aide;
  81 extern char fullname[];
  82 extern char axlevel;
  83 extern unsigned userflags;
  84 extern char sigcaught;
  85 extern char printcmd[];
  86 extern int rc_allow_attachments;
  87 extern int rc_display_message_numbers;
  88 extern int rc_force_mail_prompts;
  89 extern int editor_pid;
  90 extern CtdlIPC *ipc_for_signal_handlers;        /* KLUDGE cover your eyes */
  91 int num_urls = 0;
  92 char urls[MAXURLS][SIZ];
  93
  94 void ka_sigcatch(int signum)
  95 {
  96         alarm(S_KEEPALIVE);
  97         signal(SIGALRM, ka_sigcatch);
  98         CtdlIPCNoop(ipc_for_signal_handlers);
  99 }
 100
 101
 102 /*
 103  * server keep-alive version of wait() (needed for external editor)
 104  */
 105 pid_t ka_wait(int *kstatus)
 106 {
 107         pid_t p;
 108
 109         alarm(S_KEEPALIVE);
 110         signal(SIGALRM, ka_sigcatch);
 111         do {
 112                 errno = 0;
 113                 p = wait(kstatus);
 114         } while (errno == EINTR);
 115         signal(SIGALRM, SIG_IGN);
 116         alarm(0);
 117         return (p);
 118 }
 119
 120
 121 /*
 122  * version of system() that uses ka_wait()
 123  */
 124 int ka_system(char *shc)
 125 {
 126         pid_t childpid;
 127         pid_t waitpid;
 128         int retcode;
 129
 130         childpid = fork();
 131         if (childpid < 0) {
 132                 color(BRIGHT_RED);
 133                 perror("Cannot fork");
 134                 color(DIM_WHITE);
 135                 return ((pid_t) childpid);
 136         }
 137
 138         if (childpid == 0) {
 139                 execlp("/bin/sh", "sh", "-c", shc, NULL);
 140                 exit(127);
 141         }
 142
 143         if (childpid > 0) {
 144                 do {
 145                         waitpid = ka_wait(&retcode);
 146                 } while (waitpid != childpid);
 147                 return (retcode);
 148         }
 149
 150         return (-1);
 151 }
 152
 153
 154
 155 /*
 156  * add a newline to the buffer...
 157  */
 158 void add_newline(struct cittext *textlist)
 159 {
 160         struct cittext *ptr;
 161
 162         ptr = textlist;
 163         while (ptr->next != NULL)
 164                 ptr = ptr->next;
 165
 166         while (ptr->text[strlen(ptr->text) - 1] == 32)
 167                 ptr->text[strlen(ptr->text) - 1] = 0;
 168         /* strcat(ptr->text,"\n"); */
 169
 170         ptr->next = (struct cittext *)
 171             malloc(sizeof(struct cittext));
 172         ptr = ptr->next;
 173         ptr->next = NULL;
 174         strcpy(ptr->text, "");
 175 }
 176
 177
 178 /*
 179  * add a word to the buffer...
 180  */
 181 void add_word(struct cittext *textlist, char *wordbuf)
 182 {
 183         struct cittext *ptr;
 184
 185         ptr = textlist;
 186         while (ptr->next != NULL)
 187                 ptr = ptr->next;
 188
 189         if (3 + strlen(ptr->text) + strlen(wordbuf) > screenwidth) {
 190                 ptr->next = (struct cittext *)
 191                     malloc(sizeof(struct cittext));
 192                 ptr = ptr->next;
 193                 ptr->next = NULL;
 194                 strcpy(ptr->text, "");
 195         }
 196
 197         strcat(ptr->text, wordbuf);
 198         strcat(ptr->text, " ");
 199 }
 200
 201
 202 /*
 203  * begin editing of an opened file pointed to by fp
 204  */
 205 void citedit(CtdlIPC *ipc, FILE * fp)
 206 {
 207         int a, prev, finished, b, last_space;
 208         int appending = 0;
 209         struct cittext *textlist = NULL;
 210         struct cittext *ptr;
 211         char wordbuf[MAXWORDBUF];
 212
 213         /* first, load the text into the buffer */
 214         fseek(fp, 0L, 0);
 215         textlist = (struct cittext *) malloc(sizeof(struct cittext));
 216         textlist->next = NULL;
 217         strcpy(textlist->text, "");
 218
 219         strcpy(wordbuf, "");
 220         prev = (-1);
 221         while (a = getc(fp), a >= 0) {
 222                 appending = 1;
 223                 if ((a == 32) || (a == 9) || (a == 13) || (a == 10)) {
 224                         add_word(textlist, wordbuf);
 225                         strcpy(wordbuf, "");
 226                         if ((prev == 13) || (prev == 10)) {
 227                                 add_word(textlist, "\n");
 228                                 add_newline(textlist);
 229                                 add_word(textlist, "");
 230                         }
 231                 } else {
 232                         wordbuf[strlen(wordbuf) + 1] = 0;
 233                         wordbuf[strlen(wordbuf)] = a;
 234                 }
 235                 if (strlen(wordbuf) + 3 > screenwidth) {
 236                         add_word(textlist, wordbuf);
 237                         strcpy(wordbuf, "");
 238                 }
 239                 prev = a;
 240         }
 241
 242         /* get text */
 243         finished = 0;
 244         prev = (appending ? 13 : (-1));
 245         strcpy(wordbuf, "");
 246         async_ka_start();
 247         do {
 248                 a = inkey();
 249                 if (a == 10)
 250                         a = 13;
 251                 if (a == 9)
 252                         a = 32;
 253                 if (a == 127)
 254                         a = 8;
 255
 256         /******* new ***********/
 257                 if ((a > 32) && (a < 127) && (prev == 13)) {
 258                         add_word(textlist, "\n");
 259                         scr_printf(" ");
 260                 }
 261         /***********************/
 262
 263                 if ((a == 32) && (prev == 13)) {
 264                         add_word(textlist, "\n");
 265                         add_newline(textlist);
 266                 }
 267
 268                 if (a == 8) {
 269                         if (strlen(wordbuf) > 0) {
 270                                 wordbuf[strlen(wordbuf) - 1] = 0;
 271                                 scr_putc(8);
 272                                 scr_putc(32);
 273                                 scr_putc(8);
 274                         }
 275                 } else if (a == 23) {
 276                         do {
 277                                 wordbuf[strlen(wordbuf) - 1] = 0;
 278                                 scr_putc(8);
 279                                 scr_putc(32);
 280                                 scr_putc(8);
 281                         } while (strlen(wordbuf) && wordbuf[strlen(wordbuf) - 1] != ' ');
 282                 } else if (a == 13) {
 283                         scr_printf("\n");
 284                         if (strlen(wordbuf) == 0)
 285                                 finished = 1;
 286                         else {
 287                                 for (b = 0; b < strlen(wordbuf); ++b)
 288                                         if (wordbuf[b] == 32) {
 289                                                 wordbuf[b] = 0;
 290                                                 add_word(textlist,
 291                                                          wordbuf);
 292                                                 strcpy(wordbuf,
 293                                                        &wordbuf[b + 1]);
 294                                                 b = 0;
 295                                         }
 296                                 add_word(textlist, wordbuf);
 297                                 strcpy(wordbuf, "");
 298                         }
 299                 } else {
 300                         scr_putc(a);
 301                         wordbuf[strlen(wordbuf) + 1] = 0;
 302                         wordbuf[strlen(wordbuf)] = a;
 303                 }
 304                 if ((strlen(wordbuf) + 3) > screenwidth) {
 305                         last_space = (-1);
 306                         for (b = 0; b < strlen(wordbuf); ++b)
 307                                 if (wordbuf[b] == 32)
 308                                         last_space = b;
 309                         if (last_space >= 0) {
 310                                 for (b = 0; b < strlen(wordbuf); ++b)
 311                                         if (wordbuf[b] == 32) {
 312                                                 wordbuf[b] = 0;
 313                                                 add_word(textlist,
 314                                                          wordbuf);
 315                                                 strcpy(wordbuf,
 316                                                        &wordbuf[b + 1]);
 317                                                 b = 0;
 318                                         }
 319                                 for (b = 0; b < strlen(wordbuf); ++b) {
 320                                         scr_putc(8);
 321                                         scr_putc(32);
 322                                         scr_putc(8);
 323                                 }
 324                                 scr_printf("\n%s", wordbuf);
 325                         } else {
 326                                 add_word(textlist, wordbuf);
 327                                 strcpy(wordbuf, "");
 328                                 scr_printf("\n");
 329                         }
 330                 }
 331                 prev = a;
 332         } while (finished == 0);
 333         async_ka_end();
 334
 335         /* write the buffer back to disk */
 336         fseek(fp, 0L, 0);
 337         for (ptr = textlist; ptr != NULL; ptr = ptr->next) {
 338                 fprintf(fp, "%s", ptr->text);
 339         }
 340         putc(10, fp);
 341         fflush(fp);
 342         ftruncate(fileno(fp), ftell(fp));
 343
 344         /* and deallocate the memory we used */
 345         while (textlist != NULL) {
 346                 ptr = textlist->next;
 347                 free(textlist);
 348                 textlist = ptr;
 349         }
 350 }
 351
 352 /* Read a message from the server
 353  */
 354 int read_message(CtdlIPC *ipc,
 355         long num,   /* message number */
 356         int pagin, /* 0 = normal read, 1 = read with pagination, 2 = header */
 357         FILE *dest) /* Destination file, NULL for screen */
 358 {
 359         char buf[SIZ];
 360         char now[SIZ];
 361         int format_type = 0;
 362         int fr = 0;
 363         int nhdr = 0;
 364         struct ctdlipcmessage *message = NULL;
 365         int r;                          /* IPC response code */
 366         char *converted_text = NULL;
 367         char *lineptr;
 368         char *nextline;
 369         char *searchptr;
 370         int i;
 371         char ch;
 372         int linelen;
 373         int final_line_is_blank = 0;
 374
 375         sigcaught = 0;
 376         sttybbs(1);
 377
 378         strcpy(reply_to, NO_REPLY_TO);
 379         strcpy(reply_subject, "");
 380
 381         r = CtdlIPCGetSingleMessage(ipc, num, (pagin == READ_HEADER ? 1 : 0),
 382                                 (can_do_msg4 ? 4 : 0),
 383                                 &message, buf);
 384         if (r / 100 != 1) {
 385                 err_printf("*** msg #%ld: %d %s\n", num, r, buf);
 386                 ++lines_printed;
 387                 lines_printed =
 388                     checkpagin(lines_printed, pagin, screenheight);
 389                 sttybbs(0);
 390                 return (0);
 391         }
 392
 393         if (dest) {
 394                 fprintf(dest, "\n ");
 395         } else {
 396                 scr_printf("\n");
 397                 ++lines_printed;
 398                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 399                 if (pagin != 2)
 400                         scr_printf(" ");
 401         }
 402         if (pagin == 1 && !dest) {
 403                 color(BRIGHT_CYAN);
 404         }
 405
 406         /* View headers only */
 407         if (pagin == 2) {
 408                 pprintf("nhdr=%s\nfrom=%s\ntype=%d\nmsgn=%s\n",
 409                                 message->nhdr ? "yes" : "no",
 410                                 message->author, message->type,
 411                                 message->msgid);
 412                 if (strlen(message->subject)) {
 413                         pprintf("subj=%s\n", message->subject);
 414                 }
 415                 if (strlen(message->email)) {
 416                         pprintf("rfca=%s\n", message->email);
 417                 }
 418                 pprintf("hnod=%s\nroom=%s\nnode=%s\ntime=%s",
 419                                 message->hnod, message->room,
 420                                 message->node,
 421                                 asctime(localtime(&message->time)));
 422                 if (strlen(message->recipient)) {
 423                         pprintf("rcpt=%s\n", message->recipient);
 424                 }
 425                 if (message->attachments) {
 426                         struct parts *ptr;
 427
 428                         for (ptr = message->attachments; ptr; ptr = ptr->next) {
 429                                 pprintf("part=%s|%s|%s|%s|%s|%ld\n",
 430                                         ptr->name, ptr->filename, ptr->number,
 431                                         ptr->disposition, ptr->mimetype,
 432                                         ptr->length);
 433                         }
 434                 }
 435                 pprintf("\n");
 436                 sttybbs(0);
 437                 return (0);
 438         }
 439
 440         if (rc_display_message_numbers) {
 441                 if (dest) {
 442                         fprintf(dest, "[#%s] ", message->msgid);
 443                 } else {
 444                         color(DIM_WHITE);
 445                         scr_printf("[");
 446                         color(BRIGHT_WHITE);
 447                         scr_printf("#%s", message->msgid);
 448                         color(DIM_WHITE);
 449                         scr_printf("] ");
 450                 }
 451         }
 452         if (nhdr == 1 && !is_room_aide) {
 453                 if (dest) {
 454                         fprintf(dest, " ****");
 455                 } else {
 456                         scr_printf(" ****");
 457                 }
 458         } else {
 459                 fmt_date(now, sizeof now, message->time, 0);
 460                 if (dest) {
 461                         fprintf(dest, "%s from %s ", now, message->author);
 462                         if (strlen(message->email)) {
 463                                 fprintf(dest, "<%s> ", message->email);
 464                         }
 465                 } else {
 466                         color(BRIGHT_CYAN);
 467                         scr_printf("%s ", now);
 468                         color(DIM_WHITE);
 469                         scr_printf("from ");
 470                         color(BRIGHT_CYAN);
 471                         scr_printf("%s ", message->author);
 472                         if (strlen(message->email)) {
 473                                 color(DIM_WHITE);
 474                                 scr_printf("<");
 475                                 color(BRIGHT_BLUE);
 476                                 scr_printf("%s", message->email);
 477                                         color(DIM_WHITE);
 478                                 scr_printf("> ");
 479                         }
 480                 }
 481                 if (strlen(message->node)) {
 482                         if ((room_flags & QR_NETWORK)
 483                             || ((strcasecmp(message->node, serv_info.serv_nodename)
 484                              && (strcasecmp(message->node, serv_info.serv_fqdn))))) {
 485                                 if (strlen(message->email) == 0) {
 486                                         if (dest) {
 487                                                 fprintf(dest, "@%s ", message->node);
 488                                         } else {
 489                                                 color(DIM_WHITE);
 490                                                 scr_printf("@");
 491                                                 color(BRIGHT_YELLOW);
 492                                                 scr_printf("%s ", message->node);
 493                                         }
 494                                 }
 495                         }
 496                 }
 497                 if (strcasecmp(message->hnod, serv_info.serv_humannode)
 498                     && (strlen(message->hnod)) && (!strlen(message->email))) {
 499                         if (dest) {
 500                                 fprintf(dest, "(%s) ", message->hnod);
 501                         } else {
 502                                 color(DIM_WHITE);
 503                                 scr_printf("(");
 504                                 color(BRIGHT_WHITE);
 505                                 scr_printf("%s", message->hnod);
 506                                 color(DIM_WHITE);
 507                                 scr_printf(") ");
 508                         }
 509                 }
 510                 if (strcasecmp(message->room, room_name) && (strlen(message->email) == 0)) {
 511                         if (dest) {
 512                                 fprintf(dest, "in %s> ", message->room);
 513                         } else {
 514                                 color(DIM_WHITE);
 515                                 scr_printf("in ");
 516                                 color(BRIGHT_MAGENTA);
 517                                 scr_printf("%s> ", message->room);
 518                         }
 519                 }
 520                 if (strlen(message->recipient)) {
 521                         if (dest) {
 522                                 fprintf(dest, "to %s ", message->recipient);
 523                         } else {
 524                                 color(DIM_WHITE);
 525                                 scr_printf("to ");
 526                                 color(BRIGHT_CYAN);
 527                                 scr_printf("%s ", message->recipient);
 528                         }
 529                 }
 530         }
 531
 532         if (dest) {
 533                 fprintf(dest, "\n");
 534         } else {
 535                 scr_printf("\n");
 536         }
 537
 538         /* Set the reply-to address to an Internet e-mail address if possible
 539          */
 540         if (message->email != NULL) if (strlen(message->email) > 0) {
 541                 safestrncpy(reply_to, message->email, sizeof reply_to);
 542         }
 543
 544         /* But if we can't do that, set it to a Citadel address.
 545          */
 546         if (!strcmp(reply_to, NO_REPLY_TO)) {
 547                 snprintf(reply_to, sizeof(reply_to), "%s @ %s",
 548                          message->author, message->node);
 549         }
 550
 551         if (!dest) {
 552                 ++lines_printed;
 553                 lines_printed = checkpagin(lines_printed, pagin, screenheight);
 554         }
 555
 556         if (message->subject != NULL) {
 557                 safestrncpy(reply_subject, message->subject,
 558                                                 sizeof reply_subject);
 559                 if (strlen(message->subject) > 0) {
 560                         if (dest) {
 561                                 fprintf(dest, "Subject: %s\n",
 562                                                         message->subject);
 563                         } else {
 564                                 color(DIM_WHITE);
 565                                 scr_printf("Subject: ");
 566                                 color(BRIGHT_CYAN);
 567                                 scr_printf("%s\n", message->subject);
 568                                 ++lines_printed;
 569                                 lines_printed = checkpagin(lines_printed,
 570                                                 pagin, screenheight);
 571                         }
 572                 }
 573         }
 574
 575         if (pagin == 1 && !dest) {
 576                 color(BRIGHT_WHITE);
 577         }
 578
 579         /******* end of header output, start of message text output *******/
 580
 581         /*
 582          * Convert HTML to plain text, formatting for the actual width
 583          * of the client screen.
 584          */
 585         if (!strcasecmp(message->content_type, "text/html")) {
 586                 converted_text = html_to_ascii(message->text, screenwidth, 0);
 587                 if (converted_text != NULL) {
 588                         free(message->text);
 589                         message->text = converted_text;
 590                         format_type = 1;
 591                 }
 592         }
 593
 594         /* Text/plain is a different type */
 595         if (!strcasecmp(message->content_type, "text/plain")) {
 596                 format_type = 1;
 597         }
 598
 599         /* Extract URL's */
 600         num_urls = 0;   /* Start with a clean slate */
 601         searchptr = message->text;
 602         while ( (searchptr != NULL) && (num_urls < MAXURLS) ) {
 603                 searchptr = strstr(searchptr, "http://");
 604                 if (searchptr != NULL) {
 605                         safestrncpy(urls[num_urls], searchptr, sizeof(urls[num_urls]));
 606                         for (i = 0; i < strlen(urls[num_urls]); i++) {
 607                                 ch = urls[num_urls][i];
 608                                 if (ch == '>' || ch == '\"' || ch == ')' ||
 609                                     ch == ' ' || ch == '\n') {
 610                                         urls[num_urls][i] = 0;
 611                                         break;
 612                                 }
 613                         }
 614                         num_urls++;
 615                         ++searchptr;
 616                 }
 617         }
 618
 619         /*
 620          * Here we go
 621          */
 622         if (format_type == 0) {
 623                 fr = fmout(screenwidth, NULL, message->text, dest,
 624                            ((pagin == 1) ? 1 : 0), screenheight, (-1), 1);
 625         } else {
 626                 /* renderer for text/plain */
 627
 628                 lineptr = message->text;
 629
 630                 do {
 631                         nextline = strchr(lineptr, '\n');
 632                         if (nextline != NULL) {
 633                                 *nextline = 0;
 634                                 ++nextline;
 635                                 if (*nextline == 0) nextline = NULL;
 636                         }
 637
 638                         if (sigcaught == 0) {
 639                                 linelen = strlen(lineptr);
 640                                 if (lineptr[linelen-1] == '\r') {
 641                                         lineptr[--linelen] = 0;
 642                                 }
 643                                 if (dest) {
 644                                         fprintf(dest, "%s\n", lineptr);
 645                                 } else {
 646                                         scr_printf("%s\n", lineptr);
 647                                         lines_printed = lines_printed + 1 +
 648                                             (linelen / screenwidth);
 649                                         lines_printed =
 650                                             checkpagin(lines_printed, pagin,
 651                                                        screenheight);
 652                                 }
 653                         }
 654                         if (lineptr[0] == 0) final_line_is_blank = 1;
 655                         else final_line_is_blank = 0;
 656                         lineptr = nextline;
 657                 } while (nextline);
 658                 fr = sigcaught;
 659         }
 660         if (!final_line_is_blank) {
 661                 if (dest) {
 662                         fprintf(dest, "\n");
 663                 }
 664                 else {
 665                         scr_printf("\n");
 666                         ++lines_printed;
 667                         lines_printed = checkpagin(lines_printed, pagin, screenheight);
 668                 }
 669         }
 670
 671         /* Enumerate any attachments */
 672         if ( (pagin == 1) && (can_do_msg4) && (message->attachments) ) {
 673                 struct parts *ptr;
 674
 675                 for (ptr = message->attachments; ptr; ptr = ptr->next) {
 676                         if ( (!strcasecmp(ptr->disposition, "attachment"))
 677                            || (!strcasecmp(ptr->disposition, "inline"))) {
 678                                 color(DIM_WHITE);
 679                                 scr_printf("Part ");
 680                                 color(BRIGHT_MAGENTA);
 681                                 scr_printf("%s", ptr->number);
 682                                 color(DIM_WHITE);
 683                                 scr_printf(": ");
 684                                 color(BRIGHT_CYAN);
 685                                 scr_printf("%s", ptr->filename);
 686                                 color(DIM_WHITE);
 687                                 scr_printf(" (%s, %ld bytes)\n", ptr->mimetype, ptr->length);
 688                         }
 689                 }
 690         }
 691
 692         /* Now we're done */
 693         free(message->text);
 694         free(message);
 695
 696         if (pagin == 1 && !dest)
 697                 color(DIM_WHITE);
 698         sttybbs(0);
 699         return (fr);
 700 }
 701
 702 /*
 703  * replace string function for the built-in editor
 704  */
 705 void replace_string(char *filename, long int startpos)
 706 {
 707         char buf[512];
 708         char srch_str[128];
 709         char rplc_str[128];
 710         FILE *fp;
 711         int a;
 712         long rpos, wpos;
 713         char *ptr;
 714         int substitutions = 0;
 715         long msglen = 0L;
 716
 717         scr_printf("Enter text to be replaced:\n: ");
 718         getline(srch_str, (sizeof(srch_str)-1) );
 719         if (strlen(srch_str) == 0)
 720                 return;
 721
 722         scr_printf("Enter text to replace it with:\n: ");
 723         getline(rplc_str, (sizeof(rplc_str)-1) );
 724
 725         fp = fopen(filename, "r+");
 726         if (fp == NULL)
 727                 return;
 728
 729         wpos = startpos;
 730         fseek(fp, startpos, 0);
 731         strcpy(buf, "");
 732         while (a = getc(fp), a > 0) {
 733                 ++msglen;
 734                 buf[strlen(buf) + 1] = 0;
 735                 buf[strlen(buf)] = a;
 736                 if (strlen(buf) >= strlen(srch_str)) {
 737                         ptr = (&buf[strlen(buf) - strlen(srch_str)]);
 738                         if (!strncmp(ptr, srch_str, strlen(srch_str))) {
 739                                 strcpy(ptr, rplc_str);
 740                                 ++substitutions;
 741                         }
 742                 }
 743                 if (strlen(buf) > 384) {
 744                         rpos = ftell(fp);
 745                         fseek(fp, wpos, 0);
 746                         fwrite((char *) buf, 128, 1, fp);
 747                         strcpy(buf, &buf[128]);
 748                         wpos = ftell(fp);
 749                         fseek(fp, rpos, 0);
 750                 }
 751         }
 752         fseek(fp, wpos, 0);
 753         if (strlen(buf) > 0)
 754                 fwrite((char *) buf, strlen(buf), 1, fp);
 755         wpos = ftell(fp);
 756         fclose(fp);
 757         truncate(filename, wpos);
 758         scr_printf("<R>eplace made %d substitution(s).\n\n", substitutions);
 759 }
 760
 761 /*
 762  * Function to begin composing a new message
 763  */
 764 int client_make_message(CtdlIPC *ipc,
 765                 char *filename,         /* temporary file name */
 766                 char *recipient,        /* NULL if it's not mail */
 767                 int is_anonymous,
 768                 int format_type,
 769                 int mode,
 770                 char *subject)          /* buffer to store subject line */
 771 {
 772         FILE *fp;
 773         int a, b, e_ex_code;
 774         long beg;
 775         char datestr[SIZ];
 776         char header[SIZ];
 777         char *editor_path = NULL;
 778         int cksum = 0;
 779
 780         if (mode >= 2)
 781         {
 782                 if((mode-2) < MAX_EDITORS && strlen(editor_paths[mode-2]) > 0) {
 783                         editor_path = editor_paths[mode-2];
 784                 } else if (strlen(editor_paths[0]) > 0) {
 785                         editor_path = editor_paths[0];
 786                 } else {
 787                         err_printf
 788                             ("*** No editor available, using built-in editor\n");
 789                         mode = 0;
 790                 }
 791         }
 792
 793         fmt_date(datestr, sizeof datestr, time(NULL), 0);
 794         header[0] = 0;
 795
 796         if (room_flags & QR_ANONONLY && !recipient) {
 797                 snprintf(header, sizeof header, " ****");
 798         }
 799         else {
 800                 snprintf(header, sizeof header,
 801                         " %s from %s",
 802                         datestr,
 803                         (is_anonymous ? "[anonymous]" : fullname)
 804                         );
 805                 if (strlen(recipient) > 0) {
 806                         size_t tmp = strlen(header);
 807                         snprintf(&header[tmp], sizeof header - tmp,
 808                                 " to %s", recipient);
 809                 }
 810         }
 811         scr_printf("%s\n", header);
 812         if (subject != NULL) if (strlen(subject) > 0) {
 813                 scr_printf("Subject: %s\n", subject);
 814         }
 815
 816         beg = 0L;
 817
 818         if (mode == 1) {
 819                 scr_printf("(Press ctrl-d when finished)\n");
 820         }
 821
 822         if (mode == 0) {
 823                 fp = fopen(filename, "r");
 824                 if (fp != NULL) {
 825                         fmout(screenwidth, fp, NULL, NULL, 0, screenheight, 0, 0);
 826                         beg = ftell(fp);
 827                         fclose(fp);
 828                 } else {
 829                         fp = fopen(filename, "w");
 830                         if (fp == NULL) {
 831                                 err_printf("*** Error opening temp file!\n"
 832                                         "    %s: %s\n",
 833                                         filename, strerror(errno));
 834                         return(1);
 835                         }
 836                         fclose(fp);
 837                 }
 838         }
 839
 840 ME1:    switch (mode) {
 841
 842         case 0:
 843                 fp = fopen(filename, "r+");
 844                 if (fp == NULL) {
 845                         err_printf("*** Error opening temp file!\n"
 846                                 "    %s: %s\n",
 847                                 filename, strerror(errno));
 848                         return(1);
 849                 }
 850                 citedit(ipc, fp);
 851                 fclose(fp);
 852                 goto MECR;
 853
 854         case 1:
 855                 fp = fopen(filename, "a");
 856                 if (fp == NULL) {
 857                         err_printf("*** Error opening temp file!\n"
 858                                 "    %s: %s\n",
 859                                 filename, strerror(errno));
 860                         return(1);
 861                 }
 862                 do {
 863                         a = inkey();
 864                         if (a == 255)
 865                                 a = 32;
 866                         if (a == 13)
 867                                 a = 10;
 868                         if (a != 4) {
 869                                 putc(a, fp);
 870                                 scr_putc(a);
 871                         }
 872                         if (a == 10)
 873                                 scr_putc(10);
 874                 } while (a != 4);
 875                 fclose(fp);
 876                 break;
 877
 878         case 2:
 879         default:        /* allow 2+ modes */
 880                 e_ex_code = 1;  /* start with a failed exit code */
 881                 editor_pid = fork();
 882                 cksum = file_checksum(filename);
 883                 screen_reset();
 884                 sttybbs(SB_RESTORE);
 885                 if (editor_pid == 0) {
 886                         char tmp[SIZ];
 887
 888                         chmod(filename, 0600);
 889                         snprintf(tmp, sizeof tmp, "WINDOW_TITLE=%s", header);
 890                         putenv(tmp);
 891                         execlp(editor_path, editor_path, filename, NULL);
 892                         exit(1);
 893                 }
 894                 if (editor_pid > 0)
 895                         do {
 896                                 e_ex_code = 0;
 897                                 b = ka_wait(&e_ex_code);
 898                         } while ((b != editor_pid) && (b >= 0));
 899                 editor_pid = (-1);
 900                 sttybbs(0);
 901                 screen_set();
 902                 break;
 903         }
 904
 905 MECR:   if (mode >= 2) {
 906                 if (file_checksum(filename) == cksum) {
 907                         err_printf("*** Aborted message.\n");
 908                         e_ex_code = 1;
 909                 }
 910                 if (e_ex_code == 0)
 911                         goto MEFIN;
 912                 goto MEABT2;
 913         }
 914
 915         b = keymenu("Entry command (? for options)",
 916                     "<A>bort|<C>ontinue|<S>ave message|<P>rint formatted|"
 917                     "add s<U>bject|"
 918                     "<R>eplace string|<H>old message");
 919
 920         if (b == 'a')
 921                 goto MEABT;
 922         if (b == 'c')
 923                 goto ME1;
 924         if (b == 's')
 925                 goto MEFIN;
 926         if (b == 'p') {
 927                 scr_printf(" %s from %s", datestr, fullname);
 928                 if (strlen(recipient) > 0)
 929                         scr_printf(" to %s", recipient);
 930                 scr_printf("\n");
 931                 if (subject != NULL) if (strlen(subject) > 0) {
 932                         scr_printf("Subject: %s\n", subject);
 933                 }
 934                 fp = fopen(filename, "r");
 935                 if (fp != NULL) {
 936                         fmout(screenwidth, fp, NULL, NULL,
 937                               ((userflags & US_PAGINATOR) ? 1 : 0),
 938                               screenheight, 0, 0);
 939                         beg = ftell(fp);
 940                         fclose(fp);
 941                 }
 942                 goto MECR;
 943         }
 944         if (b == 'r') {
 945                 replace_string(filename, 0L);
 946                 goto MECR;
 947         }
 948         if (b == 'h') {
 949                 return (2);
 950         }
 951         if (b == 'u') {
 952                 if (subject != NULL) {
 953                         newprompt("Subject: ", subject, 70);
 954                 }
 955                 goto MECR;
 956         }
 957
 958 MEFIN:  return (0);
 959
 960 MEABT:  scr_printf("Are you sure? ");
 961         if (yesno() == 0) {
 962                 goto ME1;
 963         }
 964 MEABT2: unlink(filename);
 965         return (2);
 966 }
 967
 968
 969 #if 0
 970 /*
 971  * Transmit message text to the server.
 972  *
 973  * This loop also implements a "tick" counter that displays the progress, if
 974  * we're sending something that will take a long time to transmit.
 975  */
 976 void transmit_message(CtdlIPC *ipc, FILE *fp)
 977 {
 978         char buf[SIZ];
 979         int ch, a;
 980         long msglen;
 981         time_t lasttick;
 982
 983         fseek(fp, 0L, SEEK_END);
 984         msglen = ftell(fp);
 985         rewind(fp);
 986         lasttick = time(NULL);
 987         strcpy(buf, "");
 988         while (ch = getc(fp), (ch >= 0)) {
 989                 if (ch == 10) {
 990                         if (!strcmp(buf, "000"))
 991                                 strcpy(buf, ">000");
 992                         CtdlIPC_putline(ipc, buf);
 993                         strcpy(buf, "");
 994                 } else {
 995                         a = strlen(buf);
 996                         buf[a + 1] = 0;
 997                         buf[a] = ch;
 998                         if ((ch == 32) && (strlen(buf) > 200)) {
 999                                 buf[a] = 0;
1000                                 if (!strcmp(buf, "000"))
1001                                         strcpy(buf, ">000");
1002                                 CtdlIPC_putline(ipc, buf);
1003                                 strcpy(buf, "");
1004                         }
1005                         if (strlen(buf) > 250) {
1006                                 if (!strcmp(buf, "000"))
1007                                         strcpy(buf, ">000");
1008                                 CtdlIPC_putline(ipc, buf);
1009                                 strcpy(buf, "");
1010                         }
1011                 }
1012
1013                 if ((time(NULL) - lasttick) > 2L) {
1014                         scr_printf(" %3ld%% completed\r",
1015                                ((ftell(fp) * 100L) / msglen));
1016                         scr_flush();
1017                         lasttick = time(NULL);
1018                 }
1019
1020         }
1021         CtdlIPC_putline(ipc, buf);
1022         scr_printf("                \r");
1023         scr_flush();
1024 }
1025 #endif
1026
1027
1028 /*
1029  * Make sure there's room in msg_arr[] for at least one more.
1030  */
1031 void check_msg_arr_size(void) {
1032         if ((num_msgs + 1) > msg_arr_size) {
1033                 msg_arr_size += 512;
1034                 msg_arr = realloc(msg_arr,
1035                         ((sizeof(long)) * msg_arr_size) );
1036         }
1037 }
1038
1039
1040
1041 /*
1042  * entmsg()  -  edit and create a message
1043  *              returns 0 if message was saved
1044  */
1045 int entmsg(CtdlIPC *ipc,
1046                 int is_reply,   /* nonzero if this was a <R>eply command */
1047                 int c)          /* mode */
1048 {
1049         char buf[SIZ];
1050         int a, b;
1051         int need_recp = 0;
1052         int mode;
1053         long highmsg = 0L;
1054         FILE *fp;
1055         char subject[SIZ];
1056         struct ctdlipcmessage message;
1057         unsigned long *msgarr = NULL;
1058         int r;                  /* IPC response code */
1059
1060         if (c > 0)
1061                 mode = 1;
1062         else
1063                 mode = 0;
1064
1065         strcpy(subject, "");
1066
1067         /*
1068          * First, check to see if we have permission to enter a message in
1069          * this room.  The server will return an error code if we can't.
1070          */
1071         strcpy(message.recipient, "");
1072         strcpy(message.author, "");
1073         strcpy(message.subject, "");
1074         message.text = message.author;  /* point to "", changes later */
1075         message.anonymous = 0;
1076         message.type = mode;
1077         r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1078
1079         if (r / 100 != 2 && r / 10 != 57) {
1080                 scr_printf("%s\n", buf);
1081                 return (1);
1082         }
1083
1084         /* Error code 570 is special.  It means that we CAN enter a message
1085          * in this room, but a recipient needs to be specified.
1086          */
1087         need_recp = 0;
1088         if (r / 10 == 57)
1089                 need_recp = 1;
1090
1091         /* If the user is a dumbass, tell them how to type. */
1092         if ((userflags & US_EXPERT) == 0) {
1093                 formout(ipc, "entermsg");
1094         }
1095
1096         /* Handle the selection of a recipient, if necessary. */
1097         strcpy(buf, "");
1098         if (need_recp == 1) {
1099                 if (axlevel >= 2) {
1100                         if (is_reply) {
1101                                 strcpy(buf, reply_to);
1102                         } else {
1103                                 scr_printf("Enter recipient: ");
1104                                 getline(buf, (SIZ-100) );
1105                                 if (strlen(buf) == 0)
1106                                         return (1);
1107                         }
1108                 } else
1109                         strcpy(buf, "sysop");
1110         }
1111         strcpy(message.recipient, buf);
1112
1113         if (is_reply) {
1114                 if (strlen(reply_subject) > 0) {
1115                         if (!strncasecmp(reply_subject,
1116                            "Re: ", 3)) {
1117                                 strcpy(message.subject, reply_subject);
1118                         }
1119                         else {
1120                                 snprintf(message.subject,
1121                                         sizeof message.subject,
1122                                         "Re: %s",
1123                                         reply_subject);
1124                         }
1125                 }
1126         }
1127
1128         if (room_flags & QR_ANONOPT) {
1129                 scr_printf("Anonymous (Y/N)? ");
1130                 if (yesno() == 1)
1131                         message.anonymous = 1;
1132         }
1133
1134         /* If it's mail, we've got to check the validity of the recipient... */
1135         if (strlen(message.recipient) > 0) {
1136                 r = CtdlIPCPostMessage(ipc, 0, &message, buf);
1137                 if (r / 100 != 2) {
1138                         scr_printf("%s\n", buf);
1139                         return (1);
1140                 }
1141         }
1142
1143         /* Learn the number of the newest message in in the room, so we can
1144          * tell upon saving whether someone else has posted too.
1145          */
1146         num_msgs = 0;
1147         r = CtdlIPCGetMessages(ipc, LastMessages, 1, NULL, &msgarr, buf);
1148         if (r / 100 != 1) {
1149                 scr_printf("%s\n", buf);
1150         } else {
1151                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1152                         ;
1153         }
1154
1155         /* Now compose the message... */
1156         if (client_make_message(ipc, temp, message.recipient, message.anonymous, 0, c, message.subject) != 0) {
1157                 return (2);
1158         }
1159
1160         /* Reopen the temp file that was created, so we can send it */
1161         fp = fopen(temp, "r");
1162
1163         /* Yes, unlink it now, so it doesn't stick around if we crash */
1164         unlink(temp);
1165
1166         if (!fp || !(message.text = load_message_from_file(fp))) {
1167                 err_printf("*** Internal error while trying to save message!\n"
1168                         "%s: %s\n",
1169                         temp, strerror(errno));
1170                 return(errno);
1171         }
1172
1173         if (fp) fclose(fp);
1174
1175         /* Transmit message to the server */
1176         r = CtdlIPCPostMessage(ipc, 1, &message, buf);
1177         if (r / 100 != 4) {
1178                 scr_printf("%s\n", buf);
1179                 return (1);
1180         }
1181
1182         if (num_msgs >= 1) highmsg = msgarr[num_msgs - 1];
1183
1184         if (msgarr) free(msgarr);
1185         msgarr = NULL;
1186         r = CtdlIPCGetMessages(ipc, NewMessages, 0, NULL, &msgarr, buf);
1187         if (r / 100 != 1) {
1188                 scr_printf("%s\n", buf);
1189         } else {
1190                 for (num_msgs = 0; msgarr[num_msgs]; num_msgs++)
1191                         ;
1192         }
1193
1194         /* get new highest message number in room to set lrp for goto... */
1195         maxmsgnum = msgarr[num_msgs - 1];
1196
1197         /* now see if anyone else has posted in here */
1198         b = (-1);
1199         for (a = 0; a < num_msgs; ++a) {
1200                 if (msgarr[a] > highmsg) {
1201                         ++b;
1202                 }
1203         }
1204         if (msgarr) free(msgarr);
1205         msgarr = NULL;
1206
1207         /* In the Mail> room, this algorithm always counts one message
1208          * higher than in public rooms, so we decrement it by one.
1209          */
1210         if (need_recp) {
1211                 --b;
1212         }
1213
1214         if (b == 1) {
1215                 scr_printf("*** 1 additional message has been entered "
1216                         "in this room by another user.\n");
1217         }
1218         else if (b > 1) {
1219                 scr_printf("*** %d additional messages have been entered "
1220                         "in this room by other users.\n", b);
1221         }
1222
1223         return(0);
1224 }
1225
1226 /*
1227  * Do editing on a quoted file
1228  */
1229 void process_quote(void)
1230 {
1231         FILE *qfile, *tfile;
1232         char buf[128];
1233         int line, qstart, qend;
1234
1235         /* Unlink the second temp file as soon as it's opened, so it'll get
1236          * deleted even if the program dies
1237          */
1238         qfile = fopen(temp2, "r");
1239         unlink(temp2);
1240
1241         /* Display the quotable text with line numbers added */
1242         line = 0;
1243         fgets(buf, 128, qfile);
1244         while (fgets(buf, 128, qfile) != NULL) {
1245                 scr_printf("%2d %s", ++line, buf);
1246         }
1247         scr_printf("Begin quoting at [ 1] : ");
1248         getline(buf, 3);
1249         qstart = (buf[0] == 0) ? (1) : atoi(buf);
1250         scr_printf("  End quoting at [%d] : ", line);
1251         getline(buf, 3);
1252         qend = (buf[0] == 0) ? (line) : atoi(buf);
1253         rewind(qfile);
1254         line = 0;
1255         fgets(buf, 128, qfile);
1256         tfile = fopen(temp, "w");
1257         while (fgets(buf, 128, qfile) != NULL) {
1258                 if ((++line >= qstart) && (line <= qend))
1259                         fprintf(tfile, " >%s", buf);
1260         }
1261         fprintf(tfile, " \n");
1262         fclose(qfile);
1263         fclose(tfile);
1264         chmod(temp, 0666);
1265 }
1266
1267
1268
1269 /*
1270  * List the URL's which were embedded in the previous message
1271  */
1272 void list_urls(CtdlIPC *ipc)
1273 {
1274         int i;
1275         char cmd[SIZ];
1276
1277         if (num_urls == 0) {
1278                 scr_printf("There were no URL's in the previous message.\n\n");
1279                 return;
1280         }
1281
1282         for (i = 0; i < num_urls; ++i) {
1283                 scr_printf("%3d %s\n", i + 1, urls[i]);
1284         }
1285
1286         if ((i = num_urls) != 1)
1287                 i = intprompt("Display which one", 1, 1, num_urls);
1288
1289         snprintf(cmd, sizeof cmd, rc_url_cmd, urls[i - 1]);
1290         system(cmd);
1291         scr_printf("\n");
1292 }
1293
1294 /*
1295  * Read the messages in the current room
1296  */
1297 void readmsgs(CtdlIPC *ipc,
1298         enum MessageList c,             /* see listing in citadel_ipc.h */
1299         enum MessageDirection rdir,     /* 1=Forward (-1)=Reverse */
1300         int q           /* Number of msgs to read (if c==3) */
1301 ) {
1302         int a, b, e, f, g, start;
1303         int savedpos;
1304         int hold_sw = 0;
1305         char arcflag = 0;
1306         char quotflag = 0;
1307         int hold_color = 0;
1308         char prtfile[PATH_MAX];
1309         char pagin;
1310         char cmd[SIZ];
1311         char targ[ROOMNAMELEN];
1312         char filename[PATH_MAX];
1313         char save_to[PATH_MAX];
1314         void *attachment = NULL;        /* Downloaded attachment */
1315         FILE *dest = NULL;      /* Alternate destination other than screen */
1316         int r;                          /* IPC response code */
1317
1318         if (c < 0)
1319                 b = (num_msgs - 1);
1320         else
1321                 b = 0;
1322
1323         strcpy(prtfile, tmpnam(NULL));
1324
1325         if (msg_arr) {
1326                 free(msg_arr);
1327                 msg_arr = NULL;
1328         }
1329         r = CtdlIPCGetMessages(ipc, c, q, NULL, &msg_arr, cmd);
1330         if (r / 100 != 1) {
1331                 scr_printf("%s\n", cmd);
1332         } else {
1333                 for (num_msgs = 0; msg_arr[num_msgs]; num_msgs++)
1334                         ;
1335         }
1336
1337         if (num_msgs == 0) {    /* TODO look at this later */
1338                 if (c == LastMessages) return;
1339                 scr_printf("*** There are no ");
1340                 if (c == NewMessages) scr_printf("new ");
1341                 if (c == OldMessages) scr_printf("old ");
1342                 scr_printf("messages in this room.\n");
1343                 return;
1344         }
1345
1346         lines_printed = 0;
1347
1348         /* this loop cycles through each message... */
1349         start = ((rdir == 1) ? 0 : (num_msgs - 1));
1350         for (a = start; ((a < num_msgs) && (a >= 0)); a = a + rdir) {
1351                 while (msg_arr[a] == 0L) {
1352                         a = a + rdir;
1353                         if ((a == num_msgs) || (a == (-1)))
1354                                 return;
1355                 }
1356
1357 RAGAIN:         pagin = ((arcflag == 0)
1358                          && (quotflag == 0)
1359                          && (userflags & US_PAGINATOR)) ? 1 : 0;
1360
1361                 /* If we're doing a quote, set the screenwidth to 72 */
1362                 if (quotflag) {
1363                         hold_sw = screenwidth;
1364                         screenwidth = 72;
1365                 }
1366
1367                 /* If printing or archiving, set the screenwidth to 80 */
1368                 if (arcflag) {
1369                         hold_sw = screenwidth;
1370                         screenwidth = 80;
1371                 }
1372
1373                 /* now read the message... */
1374                 e = read_message(ipc, msg_arr[a], pagin, dest);
1375
1376                 /* ...and set the screenwidth back if we have to */
1377                 if ((quotflag) || (arcflag)) {
1378                         screenwidth = hold_sw;
1379                 }
1380 RMSGREAD:       scr_flush();
1381                 highest_msg_read = msg_arr[a];
1382                 if (quotflag) {
1383                         fclose(dest);
1384                         dest = NULL;
1385                         quotflag = 0;
1386                         enable_color = hold_color;
1387                         process_quote();
1388                 }
1389                 if (arcflag) {
1390                         fclose(dest);
1391                         dest = NULL;
1392                         arcflag = 0;
1393                         enable_color = hold_color;
1394                         f = fork();
1395                         if (f == 0) {
1396                                 freopen(prtfile, "r", stdin);
1397                                 screen_reset();
1398                                 sttybbs(SB_RESTORE);
1399                                 ka_system(printcmd);
1400                                 sttybbs(SB_NO_INTR);
1401                                 screen_set();
1402                                 unlink(prtfile);
1403                                 exit(0);
1404                         }
1405                         if (f > 0)
1406                                 do {
1407                                         g = wait(NULL);
1408                                 } while ((g != f) && (g >= 0));
1409                         scr_printf("Message printed.\n");
1410                 }
1411                 if (rc_alt_semantics && c == 1) {
1412                         char buf[SIZ];
1413
1414                         r = CtdlIPCSetMessageSeen(ipc, msg_arr[a], 1, buf);
1415                 }
1416                 if (e == 3)
1417                         return;
1418                 if (((userflags & US_NOPROMPT) || (e == 2))
1419                     && (((room_flags & QR_MAILBOX) == 0)
1420                         || (rc_force_mail_prompts == 0))) {
1421                         e = 'n';
1422                 } else {
1423                         color(DIM_WHITE);
1424                         scr_printf("(");
1425                         color(BRIGHT_WHITE);
1426                         scr_printf("%d", num_msgs - a - 1);
1427                         color(DIM_WHITE);
1428                         scr_printf(") ");
1429
1430                         keyopt("<B>ack <A>gain <Q>uote <R>eply <N>ext <S>top m<Y> next ");
1431                         if (rc_url_cmd[0] && num_urls)
1432                                 keyopt("<U>RLview ");
1433                         keyopt("<?>help -> ");
1434
1435                         do {
1436                                 lines_printed = 2;
1437                                 e = (inkey() & 127);
1438                                 e = tolower(e);
1439 /* return key same as <N> */ if (e == 10)
1440                                         e = 'n';
1441 /* space key same as <N> */ if (e == 32)
1442                                         e = 'n';
1443 /* del/move for aides only */
1444                                     if ((!is_room_aide)
1445                                         && ((room_flags & QR_MAILBOX) ==
1446                                             0)) {
1447                                         if ((e == 'd') || (e == 'm'))
1448                                                 e = 0;
1449                                 }
1450 /* print only if available */
1451                                 if ((e == 'p') && (strlen(printcmd) == 0))
1452                                         e = 0;
1453 /* can't file if not allowed */
1454                                     if ((e == 'f')
1455                                         && (rc_allow_attachments == 0))
1456                                         e = 0;
1457 /* link only if browser avail*/
1458                                     if ((e == 'u')
1459                                         && (strlen(rc_url_cmd) == 0))
1460                                         e = 0;
1461                         } while ((e != 'a') && (e != 'n') && (e != 's')
1462                                  && (e != 'd') && (e != 'm') && (e != 'p')
1463                                  && (e != 'q') && (e != 'b') && (e != 'h')
1464                                  && (e != 'r') && (e != 'f') && (e != '?')
1465                                  && (e != 'u') && (e != 'c') && (e != 'y'));
1466                         switch (e) {
1467                         case 's':
1468                                 scr_printf("Stop");
1469                                 break;
1470                         case 'a':
1471                                 scr_printf("Again");
1472                                 break;
1473                         case 'd':
1474                                 scr_printf("Delete");
1475                                 break;
1476                         case 'm':
1477                                 scr_printf("Move");
1478                                 break;
1479                         case 'c':
1480                                 scr_printf("Copy");
1481                                 break;
1482                         case 'n':
1483                                 scr_printf("Next");
1484                                 break;
1485                         case 'p':
1486                                 scr_printf("Print");
1487                                 break;
1488                         case 'q':
1489                                 scr_printf("Quote");
1490                                 break;
1491                         case 'b':
1492                                 scr_printf("Back");
1493                                 break;
1494                         case 'h':
1495                                 scr_printf("Header");
1496                                 break;
1497                         case 'r':
1498                                 scr_printf("Reply");
1499                                 break;
1500                         case 'f':
1501                                 scr_printf("File");
1502                                 break;
1503                         case 'u':
1504                                 scr_printf("URL's");
1505                                 break;
1506                         case 'y':
1507                                 scr_printf("mY next");
1508                                 break;
1509                         case '?':
1510                                 scr_printf("? <help>");
1511                                 break;
1512                         }
1513                         if (userflags & US_DISAPPEAR)
1514                                 scr_printf("\r%79s\r", "");
1515                         else
1516                                 scr_printf("\n");
1517                         scr_flush();
1518                 }
1519                 switch (e) {
1520                 case '?':
1521                         scr_printf("Options available here:\n"
1522                                 " ?  Help (prints this message)\n"
1523                                 " S  Stop reading immediately\n"
1524                                 " A  Again (repeats last message)\n"
1525                                 " N  Next (continue with next message)\n"
1526                                 " Y  My Next (continue with next message you authored)\n"
1527                                 " B  Back (go back to previous message)\n");
1528                         if ((is_room_aide)
1529                             || (room_flags & QR_MAILBOX)) {
1530                                 scr_printf(" D  Delete this message\n"
1531                                         " M  Move message to another room\n");
1532                         }
1533                         scr_printf(" C  Copy message to another room\n");
1534                         if (strlen(printcmd) > 0)
1535                                 scr_printf(" P  Print this message\n");
1536                         scr_printf(
1537                                 " Q  Quote portions of this message for your next post\n"
1538                                 " H  Headers (display message headers only)\n");
1539                         if (is_mail)
1540                                 scr_printf(" R  Reply to this message\n");
1541                         if (rc_allow_attachments)
1542                                 scr_printf
1543                                     (" F  (save attachments to a file)\n");
1544                         if (strlen(rc_url_cmd) > 0)
1545                                 scr_printf(" U  (list URL's for display)\n");
1546                         scr_printf("\n");
1547                         goto RMSGREAD;
1548                 case 'p':
1549                         scr_flush();
1550                         dest = fopen(prtfile, "w");
1551                         arcflag = 1;
1552                         hold_color = enable_color;
1553                         enable_color = 0;
1554                         goto RAGAIN;
1555                 case 'q':
1556                         scr_flush();
1557                         dest = fopen(temp2, "w");
1558                         quotflag = 1;
1559                         hold_color = enable_color;
1560                         enable_color = 0;
1561                         goto RAGAIN;
1562                 case 's':
1563                         return;
1564                 case 'a':
1565                         goto RAGAIN;
1566                 case 'b':
1567                         a = a - (rdir * 2);
1568                         break;
1569                 case 'm':
1570                 case 'c':
1571                         newprompt("Enter target room: ",
1572                                   targ, ROOMNAMELEN - 1);
1573                         if (strlen(targ) > 0) {
1574                                 r = CtdlIPCMoveMessage(ipc, (e == 'c' ? 1 : 0),
1575                                                        msg_arr[a], targ, cmd);
1576                                 scr_printf("%s\n", cmd);
1577                                 if (r / 100 == 2)
1578                                         msg_arr[a] = 0L;
1579                         } else {
1580                                 goto RMSGREAD;
1581                         }
1582                         if (r / 100 != 2)       /* r will be init'ed, FIXME */
1583                                 goto RMSGREAD;  /* the logic here sucks */
1584                         break;
1585                 case 'f':
1586                         newprompt("Which section? ", filename,
1587                                   ((sizeof filename) - 1));
1588                         r = CtdlIPCAttachmentDownload(ipc, msg_arr[a],
1589                                         filename, &attachment, progress, cmd);
1590                         if (r / 100 != 2) {
1591                                 scr_printf("%s\n", cmd);
1592                         } else {
1593                                 extract(filename, cmd, 2);
1594                                 /*
1595                                  * Part 1 won't have a filename; use the
1596                                  * subject of the message instead. IO
1597                                  */
1598                                 if (!strlen(filename))
1599                                         strcpy(filename, reply_subject);
1600                                 destination_directory(save_to, filename);
1601                                 save_buffer(attachment,
1602                                                 extract_unsigned_long(cmd, 0),
1603                                                 save_to);
1604                         }
1605                         if (attachment) free(attachment);
1606                         goto RMSGREAD;
1607                 case 'd':
1608                         scr_printf("*** Delete this message? ");
1609                         if (yesno() == 1) {
1610                                 r = CtdlIPCDeleteMessage(ipc, msg_arr[a], cmd);
1611                                 scr_printf("%s\n", cmd);
1612                                 if (r / 100 == 2)
1613                                         msg_arr[a] = 0L;
1614                         } else {
1615                                 goto RMSGREAD;
1616                         }
1617                         break;
1618                 case 'h':
1619                         read_message(ipc, msg_arr[a], READ_HEADER, NULL);
1620                         goto RMSGREAD;
1621                 case 'r':
1622                         savedpos = num_msgs;
1623                         entmsg(ipc, 1, (rc_reply_extedit ? 2 : 0));
1624                         num_msgs = savedpos;
1625                         goto RMSGREAD;
1626                 case 'u':
1627                         list_urls(ipc);
1628                         goto RMSGREAD;
1629             case 'y':
1630           { /* hack hack hack */
1631             /* find the next message by me, stay here if we find nothing */
1632             int finda;
1633             int lasta = a;
1634             for (finda = a; ((finda < num_msgs) && (finda >= 0)); finda += rdir)
1635               {
1636                 /* This is repetitively dumb, but that's what computers are for.
1637                    We have to load up messages until we find one by us */
1638                 char buf[SIZ];
1639                 int founda = 0;
1640
1641                 /* read the header so we can get 'from=' */
1642                 snprintf(buf, sizeof buf, "MSG0 %ld|1", msg_arr[finda]);
1643                 CtdlIPC_putline(ipc, buf);
1644                 CtdlIPC_getline(ipc, buf);
1645                 while (CtdlIPC_getline(ipc, buf), strcmp(buf, "000"))
1646                   {
1647                         if ((!strncasecmp(buf, "from=", 5)) && (finda != a)) /* Skip current message. */
1648                       {
1649                         if (strcasecmp(buf+5, fullname) == 0)
1650                           {
1651                             a = lasta; /* meesa current */
1652                             founda = 1;
1653                           }
1654                           }
1655                   }
1656                     // we are now in synch with the server
1657                 if (founda)
1658                   break; /* for */
1659                 lasta = finda; /* keep one behind or we skip on the reentrance to the for */
1660               } /* for */
1661           } /* case 'y' */
1662       } /* switch */
1663         }                       /* end for loop */
1664 }                               /* end read routine */
1665
1666
1667
1668
1669 /*
1670  * View and edit a system message
1671  */
1672 void edit_system_message(CtdlIPC *ipc, char *which_message)
1673 {
1674         char desc[SIZ];
1675         char read_cmd[SIZ];
1676         char write_cmd[SIZ];
1677
1678         snprintf(desc, sizeof desc, "system message '%s'", which_message);
1679         snprintf(read_cmd, sizeof read_cmd, "MESG %s", which_message);
1680         snprintf(write_cmd, sizeof write_cmd, "EMSG %s", which_message);
1681         do_edit(ipc, desc, read_cmd, "NOOP", write_cmd);
1682 }
1683
1684
1685
1686
1687 /*
1688  * Verify the message base
1689  */
1690 void check_message_base(CtdlIPC *ipc)
1691 {
1692         char buf[SIZ];
1693         char *transcript = NULL;
1694         int r;          /* IPC response code */
1695
1696         scr_printf
1697             ("Please read the documentation before running this command.\n"
1698             "Having done so, do you still want to check the message base? ");
1699         if (yesno() == 0)
1700                 return;
1701
1702         r = CtdlIPCMessageBaseCheck(ipc, &transcript, buf);
1703         if (r / 100 != 1) {
1704                 scr_printf("%s\n", buf);
1705                 return;
1706         }
1707
1708         while (transcript && strlen(transcript)) {
1709                 lines_printed = 1;
1710                 extract_token(buf, transcript, 0, '\n');
1711                 remove_token(transcript, 0, '\n');
1712                 pprintf("%s\n", buf);
1713         }
1714         if (transcript) free(transcript);
1715         return;
1716 }
1717
1718
1719 /*
1720  * Loads the contents of a file into memory.  Caller must free the allocated
1721  * memory.
1722  */
1723 char *load_message_from_file(FILE *src)
1724 {
1725         size_t i;
1726         size_t got = 0;
1727         char *dest = NULL;
1728
1729         fseek(src, 0, SEEK_END);
1730         i = ftell(src);
1731         rewind(src);
1732
1733         dest = (char *)calloc(1, i + 1);
1734         if (!dest)
1735                 return NULL;
1736
1737         while (got < i) {
1738                 size_t g;
1739
1740                 g = fread(dest + got, 1, i - got, src);
1741                 got += g;
1742                 if (g < i - got) {
1743                         /* Interrupted system call, keep going */
1744                         if (errno == EINTR)
1745                                 continue;
1746                         /* At this point we have either EOF or error */
1747                         i = got;
1748                         break;
1749                 }
1750                 dest[i] = 0;
1751         }
1752
1753         return dest;
1754 }