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/* Copyright (C) 2007-2010 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Jan Jezek <jjezek@kerio.com>
*
* Misc Windows utility functions
*/
#ifdef OS_WIN32
#include "suricata-common.h"
#include "win32-misc.h"
#include "direct.h"
#include "util-ip.h"
void setenv(const char *name, const char *value, int overwrite)
{
if (overwrite || NULL == getenv(name)) {
char *str = SCMalloc(strlen(name) + strlen(value) + 2);
if (unlikely(str == NULL))
return;
snprintf(str, strlen(name) + strlen(value) + 1, "%s=%s", name, value);
putenv(str);
SCFree(str);
}
}
void unsetenv(const char *name)
{
char *str = SCMalloc(strlen(name) + 2);
if (unlikely(str == NULL))
return;
snprintf(str, strlen(name) + 1, "%s=", name);
putenv(str);
SCFree(str);
}
/* these functions have been defined on Vista and later */
#if NTDDI_VERSION < NTDDI_VISTA
const char* inet_ntop(int af, const void *src, char *dst, uint32_t cnt)
{
if (af == AF_INET)
{
struct sockaddr_in in;
memset(&in, 0, sizeof(in));
in.sin_family = AF_INET;
memcpy(&in.sin_addr, src, sizeof(struct in_addr));
if (0 == getnameinfo((struct sockaddr *)&in, sizeof(struct sockaddr_in), dst, cnt, NULL, 0, NI_NUMERICHOST))
return dst;
}
else if (af == AF_INET6)
{
struct sockaddr_in6 in6;
memset(&in6, 0, sizeof(in6));
in6.sin6_family = AF_INET6;
memcpy(&in6.sin6_addr, src, sizeof(struct in_addr6));
if (0 == getnameinfo((struct sockaddr *)&in6, sizeof(struct sockaddr_in6), dst, cnt, NULL, 0, NI_NUMERICHOST))
return dst;
}
return NULL;
}
int inet_pton(int af, const char *src, void *dst)
{
struct addrinfo hints;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = af;
/* as getaddrinfo below seems more liberal that inet_pton on Linux,
* add this check here that does a guess at the validity of the
* input address. */
if (af == AF_INET) {
if (!IPv4AddressStringIsValid(src))
return -1;
} else if (af == AF_INET6) {
if (!IPv6AddressStringIsValid(src))
return -1;
}
struct addrinfo* result = NULL;
if (0 != getaddrinfo(src, NULL, &hints, &result))
return -1;
if (result) {
if (result->ai_family == AF_INET) {
struct sockaddr_in* in = (struct sockaddr_in*)result->ai_addr;
memcpy(dst, &in->sin_addr, 4);
}
else if (result->ai_family == AF_INET6) {
struct sockaddr_in6* in6 = (struct sockaddr_in6*)result->ai_addr;
memcpy(dst, &in6->sin6_addr, 16);
}
else {
freeaddrinfo(result);
return -1;
}
freeaddrinfo(result);
return 1;
}
return -1;
}
#endif
#endif /* OS_WIN32 */
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