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Mayaqua/DNS.c: Fix memory leaks

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52 bytes in 2 blocks are definitely lost in loss record 5 of 13
   at 0x483877F: malloc (vg_replace_malloc.c:307)
   by 0x4ABB1BB: UnixMemoryAlloc (Unix.c:2033)
   by 0x4A7FABF: InternalMalloc (Memory.c:3819)
   by 0x4A7B769: MallocEx (Memory.c:3650)
   by 0x4A7B769: Malloc (Memory.c:3641)
   by 0x4AA71A9: CopyStr (Str.c:1884)
   by 0x4A61A9C: DnsCacheReverseUpdate (DNS.c:257)
   by 0x4A62123: DnsResolveReverse (DNS.c:506)
   by 0x4A93EB3: GetHostName (Network.c:15023)
   by 0x4A93EB3: AcceptInitEx (Network.c:12589)
   by 0x4934659: TCPAcceptedThread (Listener.c:172)
   by 0x4A76469: ThreadPoolProc (Kernel.c:872)
   by 0x4ABD159: UnixDefaultThreadProc (Unix.c:1589)
   by 0x51C2EA6: start_thread (pthread_create.c:477)

2,280 (684 direct, 1,596 indirect) bytes in 9 blocks are definitely lost in loss record 11 of 13
   at 0x483877F: malloc (vg_replace_malloc.c:307)
   by 0x4C65AC5: gaih_inet.constprop.0 (getaddrinfo.c:1058)
   by 0x4C67224: getaddrinfo (getaddrinfo.c:2256)
   by 0x4A61E06: DnsResolver (DNS.c:404)
   by 0x4A76469: ThreadPoolProc (Kernel.c:872)
   by 0x4ABD159: UnixDefaultThreadProc (Unix.c:1589)
   by 0x51C2EA6: start_thread (pthread_create.c:477)
   by 0x4C7CDEE: clone (clone.S:95)
This commit is contained in:
Davide Beatrici 2021-04-21 22:34:10 +02:00
parent 76395d8f8d
commit 3a595b4a46
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/Mayaqua/DNS.c
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@ -79,7 +79,7 @@ void DnsFree()
{ {
for (UINT i = 0; i < LIST_NUM(cache_reverse); ++i) for (UINT i = 0; i < LIST_NUM(cache_reverse); ++i)
{ {
DNS_CACHE_REVERSE *entry = LIST_DATA(cache, i); DNS_CACHE_REVERSE *entry = LIST_DATA(cache_reverse, i);
Free(entry->Hostname); Free(entry->Hostname);
Free(entry); Free(entry);
} }
@ -234,7 +234,7 @@ DNS_CACHE_REVERSE *DnsCacheReverseUpdate(const IP *ip, const char *hostname)
{ {
if (entry != NULL) if (entry != NULL)
{ {
Delete(cache, entry); Delete(cache_reverse, entry);
Free(entry); Free(entry);
entry = NULL; entry = NULL;
} }
@ -246,7 +246,7 @@ DNS_CACHE_REVERSE *DnsCacheReverseUpdate(const IP *ip, const char *hostname)
entry = ZeroMalloc(sizeof(DNS_CACHE_REVERSE)); entry = ZeroMalloc(sizeof(DNS_CACHE_REVERSE));
Copy(&entry->IP, ip, sizeof(entry->IP)); Copy(&entry->IP, ip, sizeof(entry->IP));
Add(cache, entry); Add(cache_reverse, entry);
} }
entry->Expiration = Tick64(); entry->Expiration = Tick64();
@ -400,13 +400,13 @@ void DnsResolver(THREAD *t, void *param)
hints.ai_family = AF_INET6; hints.ai_family = AF_INET6;
hints.ai_flags = AI_ALL | AI_ADDRCONFIG | AI_V4MAPPED; hints.ai_flags = AI_ALL | AI_ADDRCONFIG | AI_V4MAPPED;
struct addrinfo *result; struct addrinfo *results;
const int ret = getaddrinfo(resolver->Hostname, NULL, &hints, &result); const int ret = getaddrinfo(resolver->Hostname, NULL, &hints, &results);
if (ret == 0) if (ret == 0)
{ {
bool ipv6_ok = false; bool ipv6_ok = false;
bool ipv4_ok = false; bool ipv4_ok = false;
do for (struct addrinfo *result = results; result != NULL; result = result->ai_next)
{ {
IP ip; IP ip;
const struct sockaddr_in6 *in = (struct sockaddr_in6 *)result->ai_addr; const struct sockaddr_in6 *in = (struct sockaddr_in6 *)result->ai_addr;
@ -422,11 +422,11 @@ void DnsResolver(THREAD *t, void *param)
Copy(&resolver->IPv4, &ip, sizeof(resolver->IPv4)); Copy(&resolver->IPv4, &ip, sizeof(resolver->IPv4));
ipv4_ok = true; ipv4_ok = true;
} }
}
result = result->ai_next;
} while (result != NULL && (ipv6_ok == false || ipv4_ok == false));
resolver->OK = true; resolver->OK = true;
freeaddrinfo(results);
} }
else if (ret != EAI_NONAME) else if (ret != EAI_NONAME)
{ {