diff options
Diffstat (limited to 'src/basic/arphrd-list.c')
-rw-r--r-- | src/basic/arphrd-list.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/basic/arphrd-list.c b/src/basic/arphrd-list.c new file mode 100644 index 0000000..b6e2486 --- /dev/null +++ b/src/basic/arphrd-list.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ + +#include <errno.h> +#include <net/if_arp.h> +#include <string.h> + +#include "arphrd-list.h" +#include "macro.h" +#include "missing_network.h" + +static const struct arphrd_name* lookup_arphrd(register const char *str, register GPERF_LEN_TYPE len); + +#include "arphrd-from-name.h" +#include "arphrd-to-name.h" + +const char *arphrd_to_name(int id) { + + if (id <= 0) + return NULL; + + if ((size_t) id >= ELEMENTSOF(arphrd_names)) + return NULL; + + return arphrd_names[id]; +} + +int arphrd_from_name(const char *name) { + const struct arphrd_name *sc; + + assert(name); + + sc = lookup_arphrd(name, strlen(name)); + if (!sc) + return -EINVAL; + + return sc->id; +} + +int arphrd_max(void) { + return ELEMENTSOF(arphrd_names); +} |