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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include "af-list.h"
#include "macro.h"
static const struct af_name* lookup_af(register const char *str, register GPERF_LEN_TYPE len);
#include "af-from-name.h"
#include "af-to-name.h"
const char* af_to_name(int id) {
if (id <= 0)
return NULL;
if ((size_t) id >= ELEMENTSOF(af_names))
return NULL;
return af_names[id];
}
int af_from_name(const char *name) {
const struct af_name *sc;
assert(name);
sc = lookup_af(name, strlen(name));
if (!sc)
return -EINVAL;
return sc->id;
}
int af_max(void) {
return ELEMENTSOF(af_names);
}
const char* af_to_ipv4_ipv6(int id) {
/* Pretty often we want to map the address family to the typically used protocol name for IPv4 +
* IPv6. Let's add special helpers for that. */
return id == AF_INET ? "ipv4" :
id == AF_INET6 ? "ipv6" : NULL;
}
int af_from_ipv4_ipv6(const char *af) {
return streq_ptr(af, "ipv4") ? AF_INET :
streq_ptr(af, "ipv6") ? AF_INET6 : AF_UNSPEC;
}
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