diff --git a/Cargo.lock b/Cargo.lock
index 38faefca..9859a8c2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,22 +11,22 @@ dependencies = [
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "libsodium-ffi 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libsodium-ffi 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "lru_time_cache 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "md-5 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "netdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.9.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "qrcode 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "subprocess 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-signal 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "typenum 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -57,7 +57,7 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -111,7 +111,7 @@ version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -181,8 +181,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -209,6 +209,22 @@ name = "foreign-types"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "fuchsia-zircon"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuchsia-zircon-sys"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "futures"
 version = "0.1.16"
@@ -240,10 +256,10 @@ dependencies = [
 
 [[package]]
 name = "iovec"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -273,15 +289,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.31"
+version = "0.2.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libsodium-ffi"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -333,7 +349,7 @@ name = "memchr"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -341,10 +357,10 @@ name = "mio"
 version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -359,7 +375,7 @@ name = "mio-uds"
 version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -381,7 +397,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -393,7 +409,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "domain 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -414,7 +430,7 @@ name = "num_cpus"
 version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -430,7 +446,7 @@ dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -440,7 +456,7 @@ version = "0.9.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -462,11 +478,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rand"
-version = "0.3.16"
+version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -485,9 +501,9 @@ dependencies = [
  "coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -527,7 +543,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -579,6 +595,11 @@ name = "slab"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "slab"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "strsim"
 version = "0.6.0"
@@ -591,7 +612,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -601,7 +622,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -610,7 +631,7 @@ name = "termion"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -639,23 +660,23 @@ version = "0.1.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-core"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -676,10 +697,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -794,17 +815,19 @@ dependencies = [
 "checksum either 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cbee135e9245416869bf52bd6ccc9b59e2482651510784e089b874272f02a252"
 "checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e4056b9bd47f8ac5ba12be771f77a0dae796d1bbaaf5fd0b9c2d38b69b8a29d"
+"checksum fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f6c0581a4e363262e52b87f59ee2afe3415361c6ec35e665924eb08afe8ff159"
+"checksum fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "43f3795b4bae048dc6123a6b972cadde2e676f9ded08aef6bb77f5f157684a82"
 "checksum futures 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "05a23db7bd162d4e8265968602930c476f688f0c180b44bdaf55e0cb2c687558"
 "checksum gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)" = "5e33ec290da0d127825013597dbdfc28bee4964690c7ce1166cbc2a7bd08b1bb"
 "checksum generic-array 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fceb69994e330afed50c93524be68c42fa898c2d9fd4ee8da03bd7363acd26f2"
 "checksum idna 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "014b298351066f1512874135335d62a789ffe78a9974f94b43ed5621951eaf7d"
-"checksum iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "29d062ee61fccdf25be172e70f34c9f6efc597e1fb8f6526e8437b2046ab26be"
+"checksum iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b6e8b9c2247fcf6c6a1151f1156932be5606c9fd6f55a2d7f9fc1cb29386b2f7"
 "checksum itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8324a32baf01e2ae060e9de58ed0bc2320c9a2833491ee36cd3b4c414de4db8c"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lazy_static 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c9e5e58fa1a4c3b915a561a78a22ee0cac6ab97dca2504428bc1cb074375f8d5"
 "checksum lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3b585b7a6811fb03aa10e74b278a0f00f8dd9b45dc681f148bb29fa5cb61859b"
-"checksum libc 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)" = "d1419b2939a0bc44b77feb34661583c7546b532b192feab36249ab584b86856c"
-"checksum libsodium-ffi 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "b63f26eed4f233ef87b83c844cbbee7cff023a1c3b02000a4e14b9e5586d9659"
+"checksum libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)" = "56cce3130fd040c28df6f495c8492e5ec5808fb4c9093c310df02b0c8f030148"
+"checksum libsodium-ffi 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "8f7f5c4969f731130a4f9aadcbb6073135f722618130cc6583ebcb4c23245daa"
 "checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
 "checksum lru_time_cache 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf17862cdf1a87c7cc0cccc498552f3e564d2ae61069f83d2279a932af4a00c"
 "checksum magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf0336886480e671965f794bc9b6fce88503563013d1bfb7a502c81fe3ac527"
@@ -826,7 +849,7 @@ dependencies = [
 "checksum percent-encoding 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de154f638187706bde41d9b4738748933d64e6b37bdbffc0b47a97d16a6ae356"
 "checksum pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "3a8b4c6b8165cd1a1cd4b9b120978131389f64bdaf456435caa41e630edba903"
 "checksum qrcode 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "27da0765ec67aa59c7ad13ac3c856ae2b2306e68eef4ddf3c19f80a5f4578465"
-"checksum rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "eb250fd207a4729c976794d03db689c9be1d634ab5a1c9da9492a13d8fecbcdf"
+"checksum rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "61efcbcd9fa8d8fbb07c84e34a8af18a1ff177b449689ad38a6e9457ecc7b2ae"
 "checksum rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a77c51c07654ddd93f6cb543c7a849863b03abc7e82591afda6dc8ad4ac3ac4a"
 "checksum rayon-core 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7febc28567082c345f10cddc3612c6ea020fc3297a1977d472cf9fdb73e6e493"
 "checksum redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "8dde11f18c108289bef24469638a04dce49da56084f2d50618b226e47eb04509"
@@ -841,6 +864,7 @@ dependencies = [
 "checksum serde_json 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d243424e06f9f9c39e3cd36147470fd340db785825e367625f79298a6ac6b7ac"
 "checksum serde_urlencoded 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ce0fd303af908732989354c6f02e05e2e6d597152870f2c6990efb0577137480"
 "checksum slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "17b4fcaed89ab08ef143da37bc52adbcc04d4a69014f4c1208d6b51f0c47bc23"
+"checksum slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fdeff4cd9ecff59ec7e3744cbca73dfe5ac35c2aedb2cfba8a1c715a18912e9d"
 "checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
 "checksum subprocess 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "78a77399f1ffa6f2ee3595ab8e329381bbeaf640d59073821519e6a0aa957f9d"
 "checksum term_size 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2b6b55df3198cc93372e85dd2ed817f0e38ce8cc0f22eb32391bfad9c4bf209"
@@ -848,7 +872,7 @@ dependencies = [
 "checksum textwrap 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df8e08afc40ae3459e4838f303e465aa50d823df8d7f83ca88108f6d3afe7edd"
 "checksum thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"
 "checksum time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)" = "d5d788d3aa77bc0ef3e9621256885555368b47bd495c13dd2e7413c89f845520"
-"checksum tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e85d419699ec4b71bfe35bbc25bb8771e52eff0471a7f75c853ad06e200b4f86"
+"checksum tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "c843a027f7c1df5f81e7734a0df3f67bf329411781ebf36393ce67beef6071e3"
 "checksum tokio-io 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b4ab83e7adb5677e42e405fa4ceff75659d93c4d7d7dd22f52fcec59ee9f02af"
 "checksum tokio-signal 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3d121715f6917878a0df69f39365d01dd66c4463e4ba19efdcddcdfeb1bcb2bc"
 "checksum typenum 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "13a99dc6780ef33c78780b826cf9d2a78840b72cae9474de4bcaf9051e60ebbd"
diff --git a/appveyor.yml b/appveyor.yml
index 0cc400a9..f8e7cc2d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,6 @@
 environment:
   SSL_CERT_FILE: "C:\\OpenSSL\\cacert.pem"
+  SODIUM_BUILD_STATIC: yes
 
   matrix:
       - TARGET: x86_64-pc-windows-msvc
diff --git a/src/monitor.rs b/src/monitor.rs
index b178d430..58147700 100644
--- a/src/monitor.rs
+++ b/src/monitor.rs
@@ -1,42 +1,121 @@
 #![allow(unused_imports)]
 
 use std::io;
+use std::process;
 
 use libc;
 use tokio_core::reactor::Handle;
 
-use futures::{Future, Stream};
+use futures::{self, Future, Stream};
+
+use plugin::Plugin;
 
 #[cfg(unix)]
-pub fn monitor_signal(handle: &Handle) {
+pub fn monitor_signal(handle: &Handle, plugins: Vec<Plugin>) {
     use tokio_signal::unix::Signal;
 
-    let fut = Signal::new(libc::SIGCHLD, handle)
+    // Monitor SIGCHLD, triggered if subprocess (plugin) is exited.
+    let fut1 = Signal::new(libc::SIGCHLD, handle)
         .and_then(|signal| {
-                      signal.for_each(|_| -> Result<(), io::Error> {
-                                          panic!("Plugin exited unexpectly (SIGCHLD)");
+                      signal.take(1)
+                            .for_each(|_| -> Result<(), io::Error> {
+                                          error!("Plugin exited unexpectly (SIGCHLD)");
+                                          Ok(())
                                       })
+                            .map(|_| libc::SIGCHLD)
                   })
         .map_err(|err| {
                      error!("Failed to monitor SIGCHLD, err: {:?}", err);
                  });
 
-    handle.spawn(fut);
-
-    let fut = Signal::new(libc::SIGTERM, handle)
+    // Monitor SIGTERM, triggered if shadowsocks is exited gracefully. (Kill by user).
+    let fut2 = Signal::new(libc::SIGTERM, handle)
         .and_then(|sigterm| {
-                      sigterm.for_each(|_| -> Result<(), io::Error> {
-                                           panic!("Received SIGTERM, aborting process");
+                      sigterm.take(1)
+                             .for_each(|_| -> Result<(), io::Error> {
+                                           error!("Received SIGTERM, aborting process");
+                                           Ok(())
                                        })
+                             .map(|_| libc::SIGTERM)
                   })
         .map_err(|err| {
-                     error!("Failed to monitor SIGTERM, SIGINT, err: {:?}", err);
+                     error!("Failed to monitor SIGTERM, err: {:?}", err);
                  });
 
+    // Monitor SIGINT, triggered by CTRL-C
+    let fut3 = Signal::new(libc::SIGINT, handle)
+        .and_then(|sigint| {
+                      sigint.take(1)
+                            .for_each(|_| -> Result<(), io::Error> {
+                                          error!("Received SIGINT, aborting process");
+                                          Ok(())
+                                      })
+                            .map(|_| libc::SIGINT)
+                  })
+        .map_err(|err| {
+                     error!("Failed to monitor SIGINT, err: {:?}", err);
+                 });
+
+    // Join them all, if any of them is triggered, kill all subprocesses and exit.
+    let fut = fut1.select(fut2)
+                  .map(|(sig, _)| sig)
+                  .map_err(|(e, _)| e)
+                  .select(fut3)
+                  .map(|(sig, _)| sig)
+                  .map_err(|(e, _)| e)
+                  .then(|r| {
+        // Something happened ... killing all subprocesses
+        info!("Killing {} plugins and then exit", plugins.len());
+        drop(plugins);
+
+        match r {
+            Ok(exit_code) => {
+                process::exit(128 + exit_code);
+            }
+            Err(..) => Err(()),
+        }
+    });
+
     handle.spawn(fut);
 }
 
-#[cfg(not(unix))]
-pub fn monitor_signal(_handle: &Handle) {
-    // FIXME: Do nothing ...
+#[cfg(windows)]
+pub fn monitor_signal(handle: &Handle, plugins: Vec<Plugin>) {
+    // FIXME: How to handle SIGTERM equavalent in Windows?
+
+    use tokio_signal::windows::Event;
+
+    let fut1 = Event::ctrl_c(handle)
+        .take(1)
+        .for_each(|_| {
+                      error!("Received Ctrl-C event");
+                      Ok(())
+                  })
+        .map_err(|err| {
+                     error!("Failed to monitor Ctrl-C event: {:?}", err);
+                 });
+
+    let fut2 = Event::ctrl_break(handle)
+        .take(1)
+        .for_each(|_| {
+                      error!("Received Ctrl-Break event");
+                      Ok(())
+                  })
+        .map_err(|err| {
+                     error!("Failed to monitor Ctrl-Break event: {:?}", err);
+                 });
+
+    let fut = fut1.select(fut2).then(|_| {
+                                         drop(plugins);
+                                         process::exit(libc::EXIT_FAILURE);
+                                     });
+    handle.spawn(fut);
+}
+
+#[cfg(not(any(windows, unix)))]
+pub fn monitor_signal(handle: &Handle, plugins: Vec<Plugin>) {
+    // FIXME: What can I do ...
+    // Blocks forever
+    let fut = futures::empty::<(), ()>().and_then(|_| { drop(plugins); });
+    handle.spawn(fut);
 }
diff --git a/src/relay/local.rs b/src/relay/local.rs
index 68230cd8..4e83ab19 100644
--- a/src/relay/local.rs
+++ b/src/relay/local.rs
@@ -34,8 +34,8 @@ pub fn run(mut config: Config) -> io::Result<()> {
     let enable_udp = config.enable_udp;
 
     // Hold it here, kill all plugins when Core is finished
-    let _plugins = launch_plugin(&mut config, PluginMode::Client)?;
-    ::monitor::monitor_signal(&handle);
+    let plugins = launch_plugin(&mut config, PluginMode::Client)?;
+    ::monitor::monitor_signal(&handle, plugins);
 
     let context = Context::new(handle, config);
     Context::set(&context, move || if enable_udp {
diff --git a/src/relay/server.rs b/src/relay/server.rs
index 97ccd59d..a3af4aa8 100644
--- a/src/relay/server.rs
+++ b/src/relay/server.rs
@@ -44,8 +44,8 @@ pub fn run(mut config: Config) -> io::Result<()> {
     let enable_udp = config.enable_udp;
 
     // Hold it here, kill all plugins when Core is finished
-    let _plugins = launch_plugin(&mut config, PluginMode::Server)?;
-    ::monitor::monitor_signal(&handle);
+    let plugins = launch_plugin(&mut config, PluginMode::Server)?;
+    ::monitor::monitor_signal(&handle, plugins);
 
     let context = Context::new(handle, config);
     Context::set(&context, move || if enable_udp {