-#define ADNS_ADDR2TEXT_BUFLEN (INET6_ADDRSTRLEN +1/*%*/ +9/*uint32*/ +1/*nul*/)
+#define ADNS_ADDR2TEXT_BUFLEN \
+ (INET6_ADDRSTRLEN + 1/*%*/ \
+ + ((IF_NAMESIZE-1) > 9 ? (IF_NAMESIZE-1) : 9/*uint32*/) \
+ + 1/* nul; included in IF_NAMESIZE */)
int adns_text2addr(const char *addr, uint16_t port, struct sockaddr *sa,
socklen_t *salen /* set if OK or ENOSPC; otherwise undef */);
int adns_addr2text(const struct sockaddr *sa,
char *addr_buffer, int *addr_buflen /* set iff ENOSPC */,
int *port_r /* may be 0 */);
int adns_text2addr(const char *addr, uint16_t port, struct sockaddr *sa,
socklen_t *salen /* set if OK or ENOSPC; otherwise undef */);
int adns_addr2text(const struct sockaddr *sa,
char *addr_buffer, int *addr_buflen /* set iff ENOSPC */,
int *port_r /* may be 0 */);
* EAFNOSUPPORT addr2text only
* EINVAL text2addr only: addr has invalid syntax
* ENOSPC only if *buflen < _BUFLEN or *salen < sizeof(adns_sockaddr)
* Extra errors are possible from text2addr if addr specifies a scope
* EAFNOSUPPORT addr2text only
* EINVAL text2addr only: addr has invalid syntax
* ENOSPC only if *buflen < _BUFLEN or *salen < sizeof(adns_sockaddr)
* Extra errors are possible from text2addr if addr specifies a scope
* ENOSYS address is not link local
* ENXIO if_nametoindex said it wasn't a valid name
* EIO if_nametoindex went crazy (adns prints a message to stderr)
* ENOSYS address is not link local
* ENXIO if_nametoindex said it wasn't a valid name
* EIO if_nametoindex went crazy (adns prints a message to stderr)
* any other if_nametoindex failed
* port is always in host byte order and is simply copied to and
* from the appropriate sockaddr field (byteswapped as necessary).
* any other if_nametoindex failed
* port is always in host byte order and is simply copied to and
* from the appropriate sockaddr field (byteswapped as necessary).