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/* ISC license. */
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <skalibs/uint16.h>
#include <s6-dns/s6dns-fmt.h>
size_t s6dns_fmt_caa (char *s, size_t max, s6dns_message_rr_caa_t const *caa)
{
size_t len = 0, taglen = strlen(caa->tag), valuelen = strlen(caa->value) ;
char fmt[UINT16_FMT] ;
size_t r = uint16_fmt(fmt, (uint16_t)caa->flags) ;
if (r + taglen + valuelen + 2 > max) return (errno = ENAMETOOLONG, 0) ;
memcpy(s + len, fmt, r) ;
len += r ; s[len++] = ' ' ;
memcpy(s + len, caa->tag, taglen) ;
len += taglen ; s[len++] = ' ' ;
memcpy(s + len, caa->value, valuelen) ;
len += valuelen ;
return len ;
}
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