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Ability to control hostname resolution for ncat proxy destinations

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Closes #1214, fixes #1230, closes #1439
This commit is contained in:
nnposter
2019-02-23 22:34:13 +00:00
parent 12f1894f97
commit dbed133fc5
7 changed files with 220 additions and 78 deletions
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13
ncat/ncat_main.c
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@@ -327,6 +327,7 @@ int main(int argc, char *argv[])
{"proxy", required_argument, NULL, 0},
{"proxy-type", required_argument, NULL, 0},
{"proxy-auth", required_argument, NULL, 0},
{"proxy-dns", required_argument, NULL, 0},
{"nsock-engine", required_argument, NULL, 0},
{"test", no_argument, NULL, 0},
{"ssl", no_argument, &o.ssl, 1},
@@ -490,6 +491,17 @@ int main(int argc, char *argv[])
if (o.proxy_auth)
bye("You can't specify more than one --proxy-auth.");
o.proxy_auth = optarg;
} else if (strcmp(long_options[option_index].name, "proxy-dns") == 0) {
if (strcmp(optarg, "none") == 0)
o.proxydns = 0;
else if (strcmp(optarg, "local") == 0)
o.proxydns = PROXYDNS_LOCAL;
else if (strcmp(optarg, "remote") == 0)
o.proxydns = PROXYDNS_REMOTE;
else if (strcmp(optarg, "both") == 0)
o.proxydns = PROXYDNS_LOCAL | PROXYDNS_REMOTE;
else
bye("Invalid proxy DNS type.");
} else if (strcmp(long_options[option_index].name, "nsock-engine") == 0) {
if (nsock_set_default_engine(optarg) < 0)
bye("Unknown or non-available engine: %s.", optarg);
@@ -647,6 +659,7 @@ int main(int argc, char *argv[])
" --proxy <addr[:port]> Specify address of host to proxy through\n"
" --proxy-type <type> Specify proxy type (\"http\", \"socks4\", \"socks5\")\n"
" --proxy-auth <auth> Authenticate with HTTP or SOCKS proxy server\n"
" --proxy-dns <type> Specify where to resolve proxy destination\n"
#ifdef HAVE_OPENSSL
" --ssl Connect or listen with SSL\n"