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Use DHCP server as gateway when it is absent

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Some routers can return 0.0.0.0 as gateway address,
use DHCP server as gateway in such instances

Change-Id: I7e8db8e619475efce53ce391f77f2c13c3b7268c
This commit is contained in:
Irfan Sheriff 2011-04-15 16:04:24 -07:00
parent 112445b8a7
commit bdaaec1ba0
1 changed files with 9 additions and 3 deletions
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12
libnetutils/dhcp_utils.c
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@ -79,6 +79,15 @@ static int fill_ip_info(const char *interface,
snprintf(prop_name, sizeof(prop_name), "%s.%s.gateway", DHCP_PROP_NAME_PREFIX, interface);
property_get(prop_name, gateway, NULL);
snprintf(prop_name, sizeof(prop_name), "%s.%s.server", DHCP_PROP_NAME_PREFIX, interface);
property_get(prop_name, server, NULL);
//TODO: Handle IPv6 when we change system property usage
if (strcmp(gateway, "0.0.0.0") == 0) {
//DHCP server is our best bet as gateway
strncpy(gateway, server, PROPERTY_VALUE_MAX);
}
snprintf(prop_name, sizeof(prop_name), "%s.%s.mask", DHCP_PROP_NAME_PREFIX, interface);
if (property_get(prop_name, prop_value, NULL)) {
int p;
@ -107,9 +116,6 @@ static int fill_ip_info(const char *interface,
snprintf(prop_name, sizeof(prop_name), "%s.%s.dns2", DHCP_PROP_NAME_PREFIX, interface);
property_get(prop_name, dns2, NULL);
snprintf(prop_name, sizeof(prop_name), "%s.%s.server", DHCP_PROP_NAME_PREFIX, interface);
property_get(prop_name, server, NULL);
snprintf(prop_name, sizeof(prop_name), "%s.%s.leasetime", DHCP_PROP_NAME_PREFIX, interface);
if (property_get(prop_name, prop_value, NULL)) {
*lease = atol(prop_value);