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Merge "libnetutils: Clean all IPs assigned to the interface on cleaning"

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Dmitry Shmidt 2011-01-27 15:59:52 -08:00 committed by Android (Google) Code Review
commit b42db825e1
2 changed files with 27 additions and 0 deletions
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1
include/netutils/ifc.h
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@ -36,6 +36,7 @@ extern int ifc_disable(const char *ifname);
extern int ifc_reset_connections(const char *ifname);
extern int ifc_get_addr(const char *name, in_addr_t *addr);
extern int ifc_set_addr(const char *name, in_addr_t addr);
extern int ifc_set_mask(const char *name, in_addr_t mask);
extern int ifc_set_hwaddr(const char *name, const void *ptr);

26
libnetutils/ifc_utils.c
View file

@ -189,6 +189,23 @@ int ifc_set_mask(const char *name, in_addr_t mask)
return ioctl(ifc_ctl_sock, SIOCSIFNETMASK, &ifr);
}
int ifc_get_addr(const char *name, in_addr_t *addr)
{
struct ifreq ifr;
int ret = 0;
ifc_init_ifr(name, &ifr);
if (addr != NULL) {
ret = ioctl(ifc_ctl_sock, SIOCGIFADDR, &ifr);
if (ret < 0) {
*addr = 0;
} else {
*addr = ((struct sockaddr_in*) &ifr.ifr_addr)->sin_addr.s_addr;
}
}
return ret;
}
int ifc_get_info(const char *name, in_addr_t *addr, in_addr_t *mask, unsigned *flags)
{
struct ifreq ifr;
@ -312,11 +329,20 @@ int ifc_enable(const char *ifname)
int ifc_disable(const char *ifname)
{
unsigned addr, count;
int result;
ifc_init();
result = ifc_down(ifname);
ifc_set_addr(ifname, 0);
for (count=0, addr=1;((addr != 0) && (count < 255)); count++) {
if (ifc_get_addr(ifname, &addr) < 0)
break;
if (addr)
ifc_set_addr(ifname, 0);
}
ifc_close();
return result;
}