diff options
Diffstat (limited to 'src/tun_helper.h')
| -rw-r--r-- | src/tun_helper.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/tun_helper.h b/src/tun_helper.h index 47c8033..db5fd6a 100644 --- a/src/tun_helper.h +++ b/src/tun_helper.h @@ -36,6 +36,9 @@ #define _TUN_HELPER_H_ #include <string.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> void tun_conf(tun_device_t* dev, const char* dev_name, const char* dev_type, const char* ifcfg_addr, u_int16_t ifcfg_prefix, u_int16_t mtu) { @@ -57,10 +60,21 @@ void tun_conf(tun_device_t* dev, const char* dev_name, const char* dev_type, con } dev->net_addr_ = NULL; + dev->net_mask_ = NULL; dev->prefix_length_ = 0; if(ifcfg_addr) { dev->net_addr_ = strdup(ifcfg_addr); dev->prefix_length_ = ifcfg_prefix; + + u_int32_t mask = 0; + u_int16_t i = 0; + for(i = 0; i < ifcfg_prefix; ++i) { + mask = mask >> 1; + mask |= 0x80000000L; + } + struct in_addr addr; + addr.s_addr = ntohl(mask); + dev->net_mask_ = strdup(inet_ntoa(addr)); } } |