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LibC: Use IPv4Address::from_string() in gethostbyname().

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This commit is contained in:
Andreas Kling 2019-07-08 11:40:12 +02:00
parent dddcedfd11
commit b6dcb5e7ae
Notes: sideshowbarker 2024-07-19 13:22:25 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/b6dcb5e7ae2
1 changed files with 4 additions and 8 deletions
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12
Libraries/LibC/netdb.cpp
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@ -51,17 +51,13 @@ static int connect_to_lookup_server()
hostent* gethostbyname(const char* name)
{
unsigned a;
unsigned b;
unsigned c;
unsigned d;
int count = sscanf(name, "%u.%u.%u.%u", &a, &b, &c, &d);
if (count == 4 && a < 256 && b < 256 && c < 256 && d < 256) {
sprintf(__gethostbyname_name_buffer, "%u.%u.%u.%u", a, b, c, d);
auto ipv4_address = IPv4Address::from_string(name);
if (ipv4_address.has_value()) {
sprintf(__gethostbyname_name_buffer, "%s", ipv4_address.value().to_string().characters());
__gethostbyname_buffer.h_name = __gethostbyname_name_buffer;
__gethostbyname_buffer.h_aliases = nullptr;
__gethostbyname_buffer.h_addrtype = AF_INET;
new (&__gethostbyname_address) IPv4Address(a, b, c, d);
new (&__gethostbyname_address) IPv4Address(ipv4_address.value());
__gethostbyname_address_list_buffer[0] = &__gethostbyname_address;
__gethostbyname_address_list_buffer[1] = nullptr;
__gethostbyname_buffer.h_addr_list = (char**)__gethostbyname_address_list_buffer;