void CheckRejectList() {
FILE *in;
char *remoteAddress;
remoteAddress = getenv("REMOTE_ADDR");
if (!remoteAddress) {
return;
}
in = fopen("/home/boutell/forbidden.txt", "r");
if (!in) {
/* Bad news -- can't access the list */
return;
}
while (!feof(in)) {
char s[80];
char address[80];
if (!fgets(s, 80, in)) {
break;
}
/* Call the RemoveSpaces function, introduced
in chapter 4. You will need to include
that function from wbw1.c if you use
this code. */
RemoveSpaces(address, s);
/* Check for a match. */
if (!strcmp(remoteAddress, address)) {
printf("Content-type: text/html\n\n");
printf("\n");
printf("Access Forbidden\n");
printf("\n");
printf("\n");
printf("Access Forbidden
\n");
printf("Access to this program from your IP address\n");
printf("is forbidden due to abusive actions on the\n");
printf("part of a user at that address.\n");
printf("\n");
/* Make sure the message gets sent by
flushing standard output */
fflush(stdout);
/* Force an early exit from the program */
fclose(in);
exit(0);
}
}
fclose(in);
/* All is well; return normally */
}