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Fix IPv4 and IPv6 issue where OSSEC-HIDS only binds on first IPv6 #1880

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Fix IPv4 and IPv6 issue where OSSEC-HIDS only binds on first IPv6 #1880

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26 changes: 0 additions & 26 deletions src/os_net/os_net.c
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Original file line number Diff line number Diff line change
Expand Up @@ -64,32 +64,6 @@ OSNetInfo *OS_Bindport(char *_port, unsigned int _proto, const char *_ip)
/* init hints for getaddrinfo() */
memset(&hints, 0, sizeof(struct addrinfo));

/*
* If you cannot bind both IPv4 and IPv6, the problem is likely due to the
* AF_INET6 family with the AI_V4MAPPED flag. Alter your Makefile to use the
* NOV4MAP define and it should work like a breeze. All of the *BSDs fall
* into this category even though AI_V4MAPPED exists in netdb.h (true for
* all modern OS's). This should work with all Linux versions too, but the
* original code for AF_INET6 was left for Linux because it works.
*
* d. stoddard - 4/19/2018
*/

#if defined(__linux__) && !defined(NOV4MAP)
#if defined (AI_V4MAPPED)
hints.ai_family = AF_INET6; /* Allow IPv4 and IPv6 */
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG | AI_V4MAPPED;
#else
/* handle as normal IPv4 and IPv6 multi request */
hints.ai_family = AF_UNSPEC; /* Allow IPv4 or IPv6 */
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
#endif /* AI_V4MAPPED */
#else
/* FreeBSD, OpenBSD, NetBSD, and others */
hints.ai_family = AF_UNSPEC; /* Allow IPv4 or IPv6 */
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
#endif

hints.ai_protocol = _proto;
if (_proto == IPPROTO_UDP) {
hints.ai_socktype = SOCK_DGRAM;
Expand Down