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 "config.h"
  27
  28 #ifndef HAVE_SNPRINTF
  29 #include "snprintf.h"
  30 #endif
  31
  32
  33 /*
  34  * Simplified function to generate a message in our format
  35  */
  36 static void ap_make_message(FILE *fp, char *target_room, char *author)
  37 {
  38         int a;
  39         long bb, cc;
  40         time_t now;
  41         time(&now);
  42         putc(255, fp);
  43         putc(MES_NORMAL, fp);
  44         putc(1, fp);
  45         fprintf(fp, "Proom_aide");
  46         putc(0, fp);
  47         fprintf(fp, "T%ld", (long)now);
  48         putc(0, fp);
  49         fprintf(fp, "A%s", author);
  50         putc(0, fp);
  51         fprintf(fp, "O%s", target_room);
  52         putc(0, fp);
  53         fprintf(fp, "N%s", NODENAME);
  54         putc(0, fp);
  55         putc('M', fp);
  56         bb = ftell(fp);
  57         while (a = getc(stdin), a > 0) {
  58                 if (a != 8)
  59                         putc(a, fp);
  60                 else {
  61                         cc = ftell(fp);
  62                         if (cc != bb)
  63                                 fseek(fp, (-1L), 1);
  64                 }
  65         }
  66         putc(0, fp);
  67         putc(0, fp);
  68         putc(0, fp);
  69 }
  70
  71 int main(int argc, char **argv)
  72 {
  73         char tempspool[64];
  74         char target_room[ROOMNAMELEN];
  75         char author[64];
  76         FILE *tempfp, *spoolfp;
  77         int ch;
  78         int i;
  79
  80         get_config();
  81
  82         strcpy(target_room, "Aide");
  83         strcpy(author, "Citadel");
  84         for (i=1; i<argc; ++i) {
  85                 if (!strncasecmp(argv[i], "-r", 2)) {
  86                         strncpy(target_room, &argv[i][2], sizeof(target_room));
  87                         target_room[sizeof(target_room)-1] = 0;
  88                 }
  89                 else if (!strncasecmp(argv[i], "-a", 2)) {
  90                         strncpy(author, &argv[i][2], sizeof(author));
  91                         author[sizeof(author)-1] = 0;
  92                 } else {
  93                         fprintf(stderr, "%s: usage: %s "
  94                                         "[-rTargetRoom] [-aAuthor]\n",
  95                                 argv[0], argv[0]);
  96                         exit(1);
  97                 }
  98         }
  99
 100         snprintf(tempspool, sizeof tempspool,
 101                          "%s/ap.%04lx",
 102                          ctdl_netin_dir,
 103                 (long)getpid());
 104
 105         unlink(tempspool);
 106
 107         tempfp = fopen(tempspool, "w+b");
 108         unlink(tempspool);
 109         if (tempfp == NULL) {
 110                 perror("cannot open temp file");
 111                 exit(errno);
 112         }
 113
 114         /* Generate a message from stdin */
 115         ap_make_message(tempfp, target_room, author);
 116
 117         /* Copy it to a new temp file in the spool directory */
 118         rewind(tempfp);
 119
 120         spoolfp = fopen(tempspool, "wb");
 121         if (spoolfp == NULL) {
 122                 perror("cannot open spool file");
 123                 exit(errno);
 124         }
 125         while (ch = getc(tempfp), (ch >= 0)) {
 126                 putc(ch, spoolfp);
 127         }
 128
 129         fclose(tempfp);
 130         fclose(spoolfp);
 131
 132         exit(0);
 133 }