citadel/utils/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 "ctdl_module.h"
  24
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include <stdio.h>
  28
  29 #if TIME_WITH_SYS_TIME
  30 # include <sys/time.h>
  31 # include <time.h>
  32 #else
  33 # if HAVE_SYS_TIME_H
  34 #  include <sys/time.h>
  35 # else
  36 #  include <time.h>
  37 # endif
  38 #endif
  39
  40 #include <limits.h>
  41 #include <errno.h>
  42 #include <string.h>
  43 #include "citadel.h"
  44 #include "citadel_dirs.h"
  45 #include "config.h"
  46
  47 #ifndef HAVE_SNPRINTF
  48 #include "snprintf.h"
  49 #endif
  50
  51
  52 /*
  53  * Simplified function to generate a message in our format
  54  */
  55 static void ap_make_message(FILE *fp, char *target_room, char *author, char *subject)
  56 {
  57         int a;
  58         long bb, cc;
  59         time_t now;
  60         time(&now);
  61         putc(255, fp);
  62         putc(MES_NORMAL, fp);
  63         putc(1, fp);
  64         fprintf(fp, "Proom_aide");
  65         putc(0, fp);
  66         fprintf(fp, "T%ld", (long)now);
  67         putc(0, fp);
  68         fprintf(fp, "A%s", author);
  69         putc(0, fp);
  70         fprintf(fp, "O%s", target_room);
  71         putc(0, fp);
  72         if (strlen(subject) > 0) {
  73                 fprintf(fp, "U%s%c", subject, 0);
  74         }
  75         fprintf(fp, "N%s", NODENAME);
  76         putc(0, fp);
  77         putc('M', fp);
  78         bb = ftell(fp);
  79         while (a = getc(stdin), a > 0) {
  80                 if (a != 8)
  81                         putc(a, fp);
  82                 else {
  83                         cc = ftell(fp);
  84                         if (cc != bb)
  85                                 fseek(fp, (-1L), 1);
  86                 }
  87         }
  88         putc(0, fp);
  89         putc(0, fp);
  90         putc(0, fp);
  91 }
  92
  93 int main(int argc, char **argv)
  94 {
  95         char tempspool[64];
  96         char target_room[ROOMNAMELEN];
  97         char author[64];
  98         char subject[256];
  99         FILE *tempfp, *spoolfp;
 100         int ch;
 101         int i;
 102
 103         int relh=0;
 104         int home=0;
 105         char relhome[PATH_MAX]="";
 106         char ctdldir[PATH_MAX]=CTDLDIR;
 107
 108         /* TODO: should we be able to calculate relative dirs? */
 109         calc_dirs_n_files(relh, home, relhome, ctdldir, 0);
 110
 111
 112         get_config();
 113
 114         strcpy(target_room, "Aide");
 115         strcpy(author, "Citadel");
 116         strcpy(subject, "");
 117         for (i=1; i<argc; ++i) {
 118                 if (!strncasecmp(argv[i], "-r", 2)) {
 119                         strncpy(target_room, &argv[i][2], sizeof(target_room));
 120                         target_room[sizeof(target_room)-1] = 0;
 121                 }
 122                 else if (!strncasecmp(argv[i], "-a", 2)) {
 123                         strncpy(author, &argv[i][2], sizeof(author));
 124                         author[sizeof(author)-1] = 0;
 125                 }
 126                 else if (!strncasecmp(argv[i], "-s", 2)) {
 127                         strncpy(subject, &argv[i][2], sizeof(subject));
 128                         subject[sizeof(subject)-1] = 0;
 129                 } else {
 130                         fprintf(stderr, "%s: usage: %s "
 131                                         "[-rTargetRoom] [-aAuthor] [-sSubject]\n",
 132                                 argv[0], argv[0]);
 133                         exit(1);
 134                 }
 135         }
 136
 137         snprintf(tempspool, sizeof tempspool,
 138                          "%s/ap.%04lx",
 139                          ctdl_netin_dir,
 140                 (long)getpid());
 141
 142         unlink(tempspool);
 143
 144         tempfp = fopen(tempspool, "w+b");
 145         unlink(tempspool);
 146         if (tempfp == NULL) {
 147                 perror("cannot open temp file");
 148                 exit(errno);
 149         }
 150
 151         /* Generate a message from stdin */
 152         ap_make_message(tempfp, target_room, author, subject);
 153
 154         /* Copy it to a new temp file in the spool directory */
 155         rewind(tempfp);
 156
 157         spoolfp = fopen(tempspool, "wb");
 158         if (spoolfp == NULL) {
 159                 perror("cannot open spool file");
 160                 exit(errno);
 161         }
 162         while (ch = getc(tempfp), (ch >= 0)) {
 163                 putc(ch, spoolfp);
 164         }
 165
 166         fclose(tempfp);
 167         fclose(spoolfp);
 168
 169         exit(0);
 170 }