1 /* 2 * Copyright (C) 1993-2005 by Darren Reed. 3 * See the IPFILTER.LICENCE file for details on licencing. 4 */ 5 6 #include <ctype.h> 7 #include "ipf.h" 8 getportproto(name,proto)9int getportproto(name, proto) 10 char *name; 11 int proto; 12 { 13 struct servent *s; 14 struct protoent *p; 15 16 if (ISDIGIT(*name)) { 17 int number; 18 char *s; 19 20 for (s = name; *s != '\0'; s++) 21 if (!ISDIGIT(*s)) 22 return -1; 23 24 number = atoi(name); 25 if (number < 0 || number > 65535) 26 return -1; 27 return htons(number); 28 } 29 30 p = getprotobynumber(proto); 31 s = getservbyname(name, p ? p->p_name : NULL); 32 if (s != NULL) 33 return s->s_port; 34 return -1; 35 } 36