src/basic/arphrd-list.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <net/if_arp.h>
   4 #include <string.h>
   5
   6 #include "arphrd-list.h"
   7 #include "macro.h"
   8
   9 static const struct arphrd_name* lookup_arphrd(register const char *str, register GPERF_LEN_TYPE len);
  10
  11 #include "arphrd-from-name.h"
  12 #include "arphrd-to-name.h"
  13
  14 const char *arphrd_to_name(int id) {
  15
  16         if (id <= 0)
  17                 return NULL;
  18
  19         if (id >= (int) ELEMENTSOF(arphrd_names))
  20                 return NULL;
  21
  22         return arphrd_names[id];
  23 }
  24
  25 int arphrd_from_name(const char *name) {
  26         const struct arphrd_name *sc;
  27
  28         assert(name);
  29
  30         sc = lookup_arphrd(name, strlen(name));
  31         if (!sc)
  32                 return 0;
  33
  34         return sc->id;
  35 }
  36
  37 int arphrd_max(void) {
  38         return ELEMENTSOF(arphrd_names);
  39 }