| /* 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; |
| } |