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Don't use getifaddrs as it crashes android

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This commit is contained in:
Benau 2018-03-02 20:03:04 +08:00
parent 43cf29af86
commit 4f9af9d438
1 changed files with 44 additions and 12 deletions
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56
src/network/transport_address.cpp
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@ -21,7 +21,9 @@
#ifdef WIN32
# include <iphlpapi.h>
#else
#include <ifaddrs.h>
# include <sys/ioctl.h>
# include <net/if.h>
# include <string.h>
#endif
// ----------------------------------------------------------------------------
@ -48,20 +50,50 @@ bool TransportAddress::isLAN() const
bool TransportAddress::isPublicAddressLAN() const
{
#ifndef WIN32
struct ifaddrs *ifap, *ifa;
struct sockaddr_in *sa;
getifaddrs(&ifap); // get the info
for (ifa = ifap; ifa; ifa = ifa->ifa_next)
char buffer[2048] = {};
struct ifconf ifc;
ifc.ifc_len = sizeof(buffer);
ifc.ifc_buf = (caddr_t)buffer;
int fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0)
{
if (ifa->ifa_addr->sa_family == AF_INET)
Log::error("TransportAddress","create socket failed, errno "
"= %s (%d)\n", strerror(errno), errno);
return false;
}
if (ioctl(fd, SIOCGIFCONF, &ifc) < 0)
{
if (fd >= 0)
close(fd);
Log::error("TransportAddress", "ioctl SIOCGIFCONF failed, "
"errno = %s (%d)\n", strerror(errno), errno);
return false;
}
bool is_local_host = false;
for (int i = 0; i < ifc.ifc_len; i += sizeof(struct ifreq))
{
struct ifreq *ifr = (struct ifreq*)(buffer + i);
if (ifr->ifr_addr.sa_family != AF_INET)
{
sa = (struct sockaddr_in *) ifa->ifa_addr;
// This interface is ours
if (ntohl(sa->sin_addr.s_addr) == getIP())
return true;
// only support IPv4
continue;
}
struct sockaddr_in *addr = (struct sockaddr_in*)&ifr->ifr_addr;
if (ntohl(addr->sin_addr.s_addr) == getIP())
{
is_local_host = true;
break;
}
}
freeifaddrs(ifap);
if (fd >= 0 && close(fd) != 0)
{
Log::error("TransportAddress", "close fd %d failed, errno "
"= %s (%d)\n", strerror(errno), errno);
}
return is_local_host;
#else
// Query the list of all IP addresses on the local host. First call to
// GetIpAddrTable with 0 bytes buffer will return insufficient buffer
@ -92,8 +124,8 @@ bool TransportAddress::isPublicAddressLAN() const
}
}
delete[] table;
#endif
return false;
#endif
} // isLAN
// ----------------------------------------------------------------------------