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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/basic/af-list.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/basic/af-list.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/basic/af-list.c b/src/basic/af-list.c new file mode 100644 index 0000000..a9ab891 --- /dev/null +++ b/src/basic/af-list.c @@ -0,0 +1,52 @@ +/* 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; +} |