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Added port range check, based on patch from Maxim Bourmistrov

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This commit is contained in:
Erik Ekman 2008-01-07 22:18:27 +00:00
parent ac46718c16
commit b121f638d0
1 changed files with 10 additions and 4 deletions
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14
src/iodined.c
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@ -495,10 +495,6 @@ main(int argc, char **argv)
break;
case 'p':
port = atoi(optarg);
if (port) {
printf("ALERT! Other dns servers expect you to run on port 53.\n");
printf("You must manually forward port 53 to port %d for things to work.\n", port);
}
break;
case 'P':
strncpy(password, optarg, sizeof(password));
@ -548,6 +544,16 @@ main(int argc, char **argv)
usage();
}
if(port < 1 || port > 65535) {
warnx("Bad port number given.\n");
usage();
}
if (port != 53) {
printf("ALERT! Other dns servers expect you to run on port 53.\n");
printf("You must manually forward port 53 to port %d for things to work.\n", port);
}
if (listen_ip == INADDR_NONE) {
warnx("Bad IP address to listen on.\n");
usage();