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libs/netdb: add sanity check to avoid null pointer reference

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Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an
2023-01-30 16:26:32 +08:00
committed by Xiang Xiao
parent 6f2f62f4ce
commit fa63da22ae
1 changed files with 4 additions and 1 deletions
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libs/libc/netdb/lib_gethostentbynamer.c
+4 -1
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@@ -737,7 +737,10 @@ int gethostentbyname_r(FAR const char *name,
} }
else if ((flags & AI_NUMERICHOST) != 0) else if ((flags & AI_NUMERICHOST) != 0)
{ {
*h_errnop = EAI_NONAME; if (h_errnop)
{
*h_errnop = EAI_NONAME;
}
return ERROR; return ERROR;
} }