src/shared/ip-protocol-list.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <errno.h>
   4 #include <netinet/in.h>
   5 #include <string.h>
   6
   7 #include "ip-protocol-list.h"
   8 #include "macro.h"
   9
  10 static const struct ip_protocol_name* lookup_ip_protocol(register const char *str, register GPERF_LEN_TYPE len);
  11
  12 #include "ip-protocol-from-name.h"
  13 #include "ip-protocol-to-name.h"
  14
  15 const char *ip_protocol_to_name(int id) {
  16
  17         if (id < 0)
  18                 return NULL;
  19
  20         if (id >= (int) ELEMENTSOF(ip_protocol_names))
  21                 return NULL;
  22
  23         return ip_protocol_names[id];
  24 }
  25
  26 int ip_protocol_from_name(const char *name) {
  27         const struct ip_protocol_name *sc;
  28
  29         assert(name);
  30
  31         sc = lookup_ip_protocol(name, strlen(name));
  32         if (!sc)
  33                 return -EINVAL;
  34
  35         return sc->id;
  36 }