-/**
- Return true if a string could be a pure IP address.
-**/
-
-_PUBLIC_ bool is_ipaddress(const char *str)
-{
- bool pure_address = true;
- int i;
-
- if (str == NULL) return false;
-
- for (i=0; pure_address && str[i]; i++)
- if (!(isdigit((int)str[i]) || str[i] == '.'))
- pure_address = false;
-
- /* Check that a pure number is not misinterpreted as an IP */
- pure_address = pure_address && (strchr(str, '.') != NULL);
-
- return pure_address;
-}
-
-/**
- Interpret an internet address or name into an IP address in 4 byte form.
-**/
-_PUBLIC_ uint32_t interpret_addr(const char *str)
-{
- struct hostent *hp;
- uint32_t res;
-
- if (str == NULL || *str == 0 ||
- strcmp(str,"0.0.0.0") == 0) {
- return 0;
- }
- if (strcmp(str,"255.255.255.255") == 0) {
- return 0xFFFFFFFF;
- }
- /* recognise 'localhost' as a special name. This fixes problems with
- some hosts that don't have localhost in /etc/hosts */
- if (strcasecmp(str,"localhost") == 0) {
- str = "127.0.0.1";
- }
-
- /* if it's in the form of an IP address then get the lib to interpret it */
- if (is_ipaddress(str)) {
- res = inet_addr(str);
- } else {
- /* otherwise assume it's a network name of some sort and use
- sys_gethostbyname */
- if ((hp = sys_gethostbyname(str)) == 0) {
- DEBUG(3,("sys_gethostbyname: Unknown host. %s\n",str));
- return 0;
- }
-
- if(hp->h_addr == NULL) {
- DEBUG(3,("sys_gethostbyname: host address is invalid for host %s\n",str));
- return 0;
- }
- memcpy((char *)&res,(char *)hp->h_addr, 4);
- }
-
- if (res == (uint32_t)-1)
- return(0);
-
- return(res);
-}
-
-/**
- A convenient addition to interpret_addr().
-**/
-_PUBLIC_ struct in_addr interpret_addr2(const char *str)
-{
- struct in_addr ret;
- uint32_t a = interpret_addr(str);
- ret.s_addr = a;
- return ret;
-}
-
-/**
- Check if an IP is the 0.0.0.0.
-**/
-
-_PUBLIC_ bool is_zero_ip(struct in_addr ip)
-{
- return ip.s_addr == 0;
-}
-
-/**
- Are two IPs on the same subnet?
-**/
-
-_PUBLIC_ bool same_net(struct in_addr ip1, struct in_addr ip2, struct in_addr mask)
-{
- uint32_t net1,net2,nmask;
-
- nmask = ntohl(mask.s_addr);
- net1 = ntohl(ip1.s_addr);
- net2 = ntohl(ip2.s_addr);
-
- return((net1 & nmask) == (net2 & nmask));
-}
-
-