dns_name4 man page on Alpinelinux

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dns_name4(3)							  dns_name4(3)

NAME
       dns_name4 - look up host name

SYNTAX
       #include <dns.h>

       int dns_name4(stralloc* out,const char* ip[4]);

DESCRIPTION
       dns_name4  looks up the domain name for the 4-byte IP address in ip. It
       puts the (first) domain name into out and returns 0.  If	 the  relevant
       in-addr.arpa  domain  does not exist in DNS, or has no PTR records, out
       will be empty.

       If dns_name4 has trouble with the DNS lookup or runs out of memory,  it
       returns -1, setting errno appropriately. It may or may not change out.

SEE ALSO
       dns_name_packet(3), dns_name4_domain(3), dns_name6(3), dns_ip4(3)

								  dns_name4(3)
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