diff options
Diffstat (limited to 'src/libstrongswan/networking/host.c')
| -rw-r--r-- | src/libstrongswan/networking/host.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/libstrongswan/networking/host.c b/src/libstrongswan/networking/host.c index d275a835e..a3622ebe1 100644 --- a/src/libstrongswan/networking/host.c +++ b/src/libstrongswan/networking/host.c @@ -597,13 +597,15 @@ host_t *host_create_netmask(int family, int netbits) this->address.sa_family = family; update_sa_len(this); - bytes = (netbits + 7) / 8; - bits = (bytes * 8) - netbits; + bytes = netbits / 8; + bits = 8 - (netbits & 0x07); memset(target, 0xff, bytes); - memset(target + bytes, 0x00, len - bytes); - target[bytes - 1] = bits ? (u_int8_t)(0xff << bits) : 0xff; - + if (bytes < len) + { + memset(target + bytes, 0x00, len - bytes); + target[bytes] = (u_int8_t)(0xff << bits); + } return &this->public; } |