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
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9 #include <stdio.h>
  10
  11 #if TIME_WITH_SYS_TIME
  12 # include <sys/time.h>
  13 # include <time.h>
  14 #else
  15 # if HAVE_SYS_TIME_H
  16 #  include <sys/time.h>
  17 # else
  18 #  include <time.h>
  19 # endif
  20 #endif
  21
  22 #include <limits.h>
  23 #include <errno.h>
  24 #include <string.h>
  25 #include "citadel.h"
  26 #include "citadel_dirs.h"
  27 #include "config.h"
  28
  29 #ifndef HAVE_SNPRINTF
  30 #include "snprintf.h"
  31 #endif
  32
  33
  34 /*
  35  * Simplified function to generate a message in our format
  36  */
  37 static void ap_make_message(FILE *fp, char *target_room, char *author, char *subject)
  38 {
  39         int a;
  40         long bb, cc;
  41         time_t now;
  42         time(&now);
  43         putc(255, fp);
  44         putc(MES_NORMAL, fp);
  45         putc(1, fp);
  46         fprintf(fp, "Proom_aide");
  47         putc(0, fp);
  48         fprintf(fp, "T%ld", (long)now);
  49         putc(0, fp);
  50         fprintf(fp, "A%s", author);
  51         putc(0, fp);
  52         fprintf(fp, "O%s", target_room);
  53         putc(0, fp);
  54         if (strlen(subject) > 0) {
  55                 fprintf(fp, "U%s%c", subject, 0);
  56         }
  57         fprintf(fp, "N%s", NODENAME);
  58         putc(0, fp);
  59         putc('M', fp);
  60         bb = ftell(fp);
  61         while (a = getc(stdin), a > 0) {
  62                 if (a != 8)
  63                         putc(a, fp);
  64                 else {
  65                         cc = ftell(fp);
  66                         if (cc != bb)
  67                                 fseek(fp, (-1L), 1);
  68                 }
  69         }
  70         putc(0, fp);
  71         putc(0, fp);
  72         putc(0, fp);
  73 }
  74
  75 int main(int argc, char **argv)
  76 {
  77         char tempspool[64];
  78         char target_room[ROOMNAMELEN];
  79         char author[64];
  80         char subject[256];
  81         FILE *tempfp, *spoolfp;
  82         int ch;
  83         int i;
  84
  85         int relh=0;
  86         int home=0;
  87         char relhome[PATH_MAX]="";
  88         char ctdldir[PATH_MAX]=CTDLDIR;
  89
  90         /* TODO: should we be able to calculate relative dirs? */
  91         calc_dirs_n_files(relh, home, relhome, ctdldir, 0);
  92
  93
  94         get_config();
  95
  96         strcpy(target_room, "Aide");
  97         strcpy(author, "Citadel");
  98         strcpy(subject, "");
  99         for (i=1; i<argc; ++i) {
 100                 if (!strncasecmp(argv[i], "-r", 2)) {
 101                         strncpy(target_room, &argv[i][2], sizeof(target_room));
 102                         target_room[sizeof(target_room)-1] = 0;
 103                 }
 104                 else if (!strncasecmp(argv[i], "-a", 2)) {
 105                         strncpy(author, &argv[i][2], sizeof(author));
 106                         author[sizeof(author)-1] = 0;
 107                 }
 108                 else if (!strncasecmp(argv[i], "-s", 2)) {
 109                         strncpy(subject, &argv[i][2], sizeof(subject));
 110                         subject[sizeof(subject)-1] = 0;
 111                 } else {
 112                         fprintf(stderr, "%s: usage: %s "
 113                                         "[-rTargetRoom] [-aAuthor] [-sSubject]\n",
 114                                 argv[0], argv[0]);
 115                         exit(1);
 116                 }
 117         }
 118
 119         snprintf(tempspool, sizeof tempspool,
 120                          "%s/ap.%04lx",
 121                          ctdl_netin_dir,
 122                 (long)getpid());
 123
 124         unlink(tempspool);
 125
 126         tempfp = fopen(tempspool, "w+b");
 127         unlink(tempspool);
 128         if (tempfp == NULL) {
 129                 perror("cannot open temp file");
 130                 exit(errno);
 131         }
 132
 133         /* Generate a message from stdin */
 134         ap_make_message(tempfp, target_room, author, subject);
 135
 136         /* Copy it to a new temp file in the spool directory */
 137         rewind(tempfp);
 138
 139         spoolfp = fopen(tempspool, "wb");
 140         if (spoolfp == NULL) {
 141                 perror("cannot open spool file");
 142                 exit(errno);
 143         }
 144         while (ch = getc(tempfp), (ch >= 0)) {
 145                 putc(ch, spoolfp);
 146         }
 147
 148         fclose(tempfp);
 149         fclose(spoolfp);
 150
 151         exit(0);
 152 }