| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "nacl_io/ossocket.h" |
| |
| #ifdef PROVIDES_SOCKET_API |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <iostream> |
| #include <sstream> |
| #include <string> |
| |
| static inline uint8_t get_byte(const void* addr, int byte) { |
| const char* buf = static_cast<const char*>(addr); |
| return static_cast<uint8_t>(buf[byte]); |
| } |
| |
| char* inet_ntoa(struct in_addr in) { |
| static char addr[INET_ADDRSTRLEN]; |
| snprintf(addr, INET_ADDRSTRLEN, "%u.%u.%u.%u", |
| get_byte(&in, 0), get_byte(&in, 1), |
| get_byte(&in, 2), get_byte(&in, 3)); |
| return addr; |
| } |
| |
| const char* inet_ntop(int af, const void* src, char* dst, socklen_t size) { |
| if (AF_INET == af) { |
| if (size < INET_ADDRSTRLEN) { |
| errno = ENOSPC; |
| return NULL; |
| } |
| struct in_addr in; |
| memcpy(&in, src, sizeof(in)); |
| char* result = inet_ntoa(in); |
| memcpy(dst, result, strlen(result) + 1); |
| return dst; |
| } |
| |
| if (AF_INET6 == af) { |
| if (size < INET6_ADDRSTRLEN) { |
| errno = ENOSPC; |
| return NULL; |
| } |
| const uint8_t* tuples = static_cast<const uint8_t*>(src); |
| std::stringstream output; |
| for (int i = 0; i < 8; i++) { |
| uint16_t tuple = (tuples[2*i] << 8) + tuples[2*i+1]; |
| output << std::hex << tuple; |
| if (i < 7) { |
| output << ":"; |
| } |
| } |
| memcpy(dst, output.str().c_str(), output.str().size() + 1); |
| return dst; |
| } |
| |
| errno = EAFNOSUPPORT; |
| return NULL; |
| } |
| |
| #endif // PROVIDES_SOCKET_API |