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/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/uint16.h>
#include <s6-dns/s6dns-domain.h>
#include <s6-dns/s6dns-fmt.h>
size_t s6dns_fmt_srv (char *s, size_t max, s6dns_message_rr_srv_t const *srv)
{
size_t len = 0 ;
char fmt[UINT16_FMT] ;
size_t r = uint16_fmt(fmt, srv->priority) ;
if (len + r >= max) return (errno = ENAMETOOLONG, 0) ;
memcpy(s + len, fmt, r) ;
len += r ; s[len++] = ' ' ;
r = uint16_fmt(fmt, srv->weight) ;
if (len + r >= max) return (errno = ENAMETOOLONG, 0) ;
memcpy(s + len, fmt, r) ;
len += r ; s[len++] = ' ' ;
r = uint16_fmt(fmt, srv->port) ;
if (len + r >= max) return (errno = ENAMETOOLONG, 0) ;
memcpy(s + len, fmt, r) ;
len += r ; s[len++] = ' ' ;
r = s6dns_domain_tostring(s + len, max - len, &srv->target) ;
if (!r) return 0 ;
len += r ;
return len ;
}
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