citadel/aidepost.c

   1 /*
   2  * $Id$
   3  *
   4  * This is just a little hack to copy standard input to a message in Aide>
   5  *
   6  * Copyright (c) 1987-2009 by the citadel.org team
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 3 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <stdio.h>
  26
  27 #if TIME_WITH_SYS_TIME
  28 # include <sys/time.h>
  29 # include <time.h>
  30 #else
  31 # if HAVE_SYS_TIME_H
  32 #  include <sys/time.h>
  33 # else
  34 #  include <time.h>
  35 # endif
  36 #endif
  37
  38 #include <limits.h>
  39 #include <errno.h>
  40 #include <string.h>
  41 #include "citadel.h"
  42 #include "citadel_dirs.h"
  43 #include "config.h"
  44
  45 #ifndef HAVE_SNPRINTF
  46 #include "snprintf.h"
  47 #endif
  48
  49
  50 /*
  51  * Simplified function to generate a message in our format
  52  */
  53 static void ap_make_message(FILE *fp, char *target_room, char *author, char *subject)
  54 {
  55         int a;
  56         long bb, cc;
  57         time_t now;
  58         time(&now);
  59         putc(255, fp);
  60         putc(MES_NORMAL, fp);
  61         putc(1, fp);
  62         fprintf(fp, "Proom_aide");
  63         putc(0, fp);
  64         fprintf(fp, "T%ld", (long)now);
  65         putc(0, fp);
  66         fprintf(fp, "A%s", author);
  67         putc(0, fp);
  68         fprintf(fp, "O%s", target_room);
  69         putc(0, fp);
  70         if (strlen(subject) > 0) {
  71                 fprintf(fp, "U%s%c", subject, 0);
  72         }
  73         fprintf(fp, "N%s", NODENAME);
  74         putc(0, fp);
  75         putc('M', fp);
  76         bb = ftell(fp);
  77         while (a = getc(stdin), a > 0) {
  78                 if (a != 8)
  79                         putc(a, fp);
  80                 else {
  81                         cc = ftell(fp);
  82                         if (cc != bb)
  83                                 fseek(fp, (-1L), 1);
  84                 }
  85         }
  86         putc(0, fp);
  87         putc(0, fp);
  88         putc(0, fp);
  89 }
  90
  91 int main(int argc, char **argv)
  92 {
  93         char tempspool[64];
  94         char target_room[ROOMNAMELEN];
  95         char author[64];
  96         char subject[256];
  97         FILE *tempfp, *spoolfp;
  98         int ch;
  99         int i;
 100
 101         int relh=0;
 102         int home=0;
 103         char relhome[PATH_MAX]="";
 104         char ctdldir[PATH_MAX]=CTDLDIR;
 105
 106         /* TODO: should we be able to calculate relative dirs? */
 107         calc_dirs_n_files(relh, home, relhome, ctdldir, 0);
 108
 109
 110         get_config();
 111
 112         strcpy(target_room, "Aide");
 113         strcpy(author, "Citadel");
 114         strcpy(subject, "");
 115         for (i=1; i<argc; ++i) {
 116                 if (!strncasecmp(argv[i], "-r", 2)) {
 117                         strncpy(target_room, &argv[i][2], sizeof(target_room));
 118                         target_room[sizeof(target_room)-1] = 0;
 119                 }
 120                 else if (!strncasecmp(argv[i], "-a", 2)) {
 121                         strncpy(author, &argv[i][2], sizeof(author));
 122                         author[sizeof(author)-1] = 0;
 123                 }
 124                 else if (!strncasecmp(argv[i], "-s", 2)) {
 125                         strncpy(subject, &argv[i][2], sizeof(subject));
 126                         subject[sizeof(subject)-1] = 0;
 127                 } else {
 128                         fprintf(stderr, "%s: usage: %s "
 129                                         "[-rTargetRoom] [-aAuthor] [-sSubject]\n",
 130                                 argv[0], argv[0]);
 131                         exit(1);
 132                 }
 133         }
 134
 135         snprintf(tempspool, sizeof tempspool,
 136                          "%s/ap.%04lx",
 137                          ctdl_netin_dir,
 138                 (long)getpid());
 139
 140         unlink(tempspool);
 141
 142         tempfp = fopen(tempspool, "w+b");
 143         unlink(tempspool);
 144         if (tempfp == NULL) {
 145                 perror("cannot open temp file");
 146                 exit(errno);
 147         }
 148
 149         /* Generate a message from stdin */
 150         ap_make_message(tempfp, target_room, author, subject);
 151
 152         /* Copy it to a new temp file in the spool directory */
 153         rewind(tempfp);
 154
 155         spoolfp = fopen(tempspool, "wb");
 156         if (spoolfp == NULL) {
 157                 perror("cannot open spool file");
 158                 exit(errno);
 159         }
 160         while (ch = getc(tempfp), (ch >= 0)) {
 161                 putc(ch, spoolfp);
 162         }
 163
 164         fclose(tempfp);
 165         fclose(spoolfp);
 166
 167         exit(0);
 168 }