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Allow name@domain.tld for OpenAlias lookups

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This commit is contained in:
Thomas Winget 2015-04-29 21:31:34 -04:00
parent 41f0a8fe4d
commit b18368b635
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GPG key ID: 58131A160789E630
2 changed files with 25 additions and 14 deletions
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34
src/common/dns_utils.cpp
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@ -205,13 +205,15 @@ std::vector<std::string> DNSResolver::get_ipv4(const std::string& url, bool& dns
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return addresses;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
// destructor takes care of cleanup
ub_result_ptr result;
@ -239,14 +241,15 @@ std::vector<std::string> DNSResolver::get_ipv6(const std::string& url, bool& dns
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return addresses;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
ub_result_ptr result;
// call DNS resolver, blocking. if return value not zero, something went wrong
@ -273,14 +276,15 @@ std::vector<std::string> DNSResolver::get_txt_record(const std::string& url, boo
dnssec_valid = false;
char urlC[1000]; // waaaay too big, but just in case...
strncpy(urlC, url.c_str(), 999);
urlC[999] = '\0';
if (!check_address_syntax(urlC))
std::string url_copy{url};
if (!check_address_syntax(url_copy))
{
return records;
}
strncpy(urlC, url_copy.c_str(), 999);
urlC[999] = '\0';
ub_result_ptr result;
// call DNS resolver, blocking. if return value not zero, something went wrong
@ -314,13 +318,17 @@ DNSResolver& DNSResolver::instance()
return *staticInstance;
}
bool DNSResolver::check_address_syntax(const std::string& addr)
bool DNSResolver::check_address_syntax(std::string& addr)
{
// if string doesn't contain a dot, we won't consider it a url for now.
if (addr.find(".") == std::string::npos)
auto first_dot = addr.find(".");
if (first_dot == std::string::npos)
{
return false;
}
// allow name@domain.tld to work
addr.replace(first_dot, 1, "@");
return true;
}