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util: move and improve sockaddr-specific functions

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Move the functions to socket.c and improve them to require and check the
sockaddr length.
This commit is contained in:
Miroslav Lichvar
2019-07-18 09:42:11 +02:00
parent 91da65a782
commit 47e4cb31b2
6 changed files with 113 additions and 103 deletions
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7
nameserv.c
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@@ -34,6 +34,7 @@
#include <resolv.h>
#include "nameserv.h"
#include "socket.h"
#include "util.h"
/* ================================================== */
@@ -156,10 +157,14 @@ DNS_IPAddress2Name(IPAddr *ip_addr, char *name, int len)
#ifdef FEAT_IPV6
struct sockaddr_in6 in6;
IPSockAddr ip_saddr;
socklen_t slen;
char hbuf[NI_MAXHOST];
slen = UTI_IPAndPortToSockaddr(ip_addr, 0, (struct sockaddr *)&in6);
ip_saddr.ip_addr = *ip_addr;
ip_saddr.port = 0;
slen = SCK_IPSockAddrToSockaddr(&ip_saddr, (struct sockaddr *)&in6, sizeof (in6));
if (!getnameinfo((struct sockaddr *)&in6, slen, hbuf, sizeof (hbuf), NULL, 0, 0))
result = hbuf;
#else