usr/src/cmd/ipf/lib/common/getproto.c

   1 /*
   2  * Copyright (C) 1993-2005  by Darren Reed.
   3  * See the IPFILTER.LICENCE file for details on licencing.
   4  */
   5
   6 #include "ipf.h"
   7
   8 int getproto(name)
   9 char *name;
  10 {
  11         struct protoent *p;
  12         char *s;
  13
  14         for (s = name; *s != '\0'; s++)
  15                 if (!ISDIGIT(*s))
  16                         break;
  17         if (*s == '\0')
  18                 return atoi(name);
  19
  20 #ifdef _AIX51
  21         /*
  22          * For some bogus reason, "ip" is 252 in /etc/protocols on AIX 5
  23          */
  24         if (!strcasecmp(name, "ip"))
  25                 return 0;
  26 #endif
  27
  28         p = getprotobyname(name);
  29         if (p != NULL)
  30                 return p->p_proto;
  31         return -1;
  32 }