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main
...
initial-pr
42
.gitignore
vendored
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42
.gitignore
vendored
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@ -0,0 +1,42 @@
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||||
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||||
# Created by https://www.toptal.com/developers/gitignore/api/visualstudiocode,rust
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||||
# Edit at https://www.toptal.com/developers/gitignore?templates=visualstudiocode,rust
|
||||
|
||||
### Rust ###
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||||
# Generated by Cargo
|
||||
# will have compiled files and executables
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debug/
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||||
target/
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||||
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||||
# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
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# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
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Cargo.lock
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||||
|
||||
# These are backup files generated by rustfmt
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**/*.rs.bk
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# MSVC Windows builds of rustc generate these, which store debugging information
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*.pdb
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### VisualStudioCode ###
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.vscode/*
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!.vscode/settings.json
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!.vscode/tasks.json
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!.vscode/launch.json
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!.vscode/extensions.json
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!.vscode/*.code-snippets
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# Local History for Visual Studio Code
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.history/
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|
||||
# Built Visual Studio Code Extensions
|
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*.vsix
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||||
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### VisualStudioCode Patch ###
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# Ignore all local history of files
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.history
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.ionide
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||||
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# Support for Project snippet scope
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# End of https://www.toptal.com/developers/gitignore/api/visualstudiocode,rust
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4
.vscode/settings.json
vendored
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4
.vscode/settings.json
vendored
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@ -0,0 +1,4 @@
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{
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"editor.defaultFormatter": "rust-lang.rust",
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"editor.formatOnSave": true
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}
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749
Cargo.lock
generated
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749
Cargo.lock
generated
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@ -0,0 +1,749 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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||||
|
||||
[[package]]
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||||
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||||
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||||
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||||
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|
||||
"cfg-if",
|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
dependencies = [
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "kv-log-macro"
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||||
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||||
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||||
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||||
dependencies = [
|
||||
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|
||||
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|
||||
|
||||
[[package]]
|
||||
name = "lazy_static"
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||||
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|
||||
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|
||||
checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
|
||||
[[package]]
|
||||
name = "log"
|
||||
version = "0.4.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"value-bag",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "memchr"
|
||||
version = "2.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
|
||||
|
||||
[[package]]
|
||||
name = "memoffset"
|
||||
version = "0.6.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
|
||||
dependencies = [
|
||||
"autocfg",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "nix"
|
||||
version = "0.23.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
"cc",
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"memoffset",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num_cpus"
|
||||
version = "1.13.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
|
||||
dependencies = [
|
||||
"hermit-abi",
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "once_cell"
|
||||
version = "1.9.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
|
||||
|
||||
[[package]]
|
||||
name = "parking"
|
||||
version = "2.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
|
||||
|
||||
[[package]]
|
||||
name = "pin-project-lite"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
|
||||
|
||||
[[package]]
|
||||
name = "pin-utils"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
|
||||
|
||||
[[package]]
|
||||
name = "polling"
|
||||
version = "2.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "685404d509889fade3e86fe3a5803bca2ec09b0c0778d5ada6ec8bf7a8de5259"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"log",
|
||||
"wepoll-ffi",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
|
||||
version = "1.0.36"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
|
||||
dependencies = [
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.15"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex"
|
||||
version = "1.5.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-syntax"
|
||||
version = "0.6.25"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
|
||||
|
||||
[[package]]
|
||||
name = "slab"
|
||||
version = "0.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9def91fd1e018fe007022791f865d0ccc9b3a0d5001e01aabb8b40e46000afb5"
|
||||
|
||||
[[package]]
|
||||
name = "socket2"
|
||||
version = "0.4.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.86"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8a65b3f4ffa0092e9887669db0eae07941f023991ab58ea44da8fe8e2d511c6b"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "termcolor"
|
||||
version = "1.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thiserror"
|
||||
version = "1.0.30"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
|
||||
dependencies = [
|
||||
"thiserror-impl",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thiserror-impl"
|
||||
version = "1.0.30"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
||||
|
||||
[[package]]
|
||||
name = "value-bag"
|
||||
version = "1.0.0-alpha.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "79923f7731dc61ebfba3633098bf3ac533bbd35ccd8c57e7088d9a5eebe0263f"
|
||||
dependencies = [
|
||||
"ctor",
|
||||
"version_check",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||
|
||||
[[package]]
|
||||
name = "waker-fn"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "25f1af7423d8588a3d840681122e72e6a24ddbcb3f0ec385cac0d12d24256c06"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8b21c0df030f5a177f3cba22e9bc4322695ec43e7257d865302900290bcdedca"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"lazy_static",
|
||||
"log",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-futures"
|
||||
version = "0.4.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2eb6ec270a31b1d3c7e266b999739109abce8b6c87e4b31fcfcd788b65267395"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
"web-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2f4203d69e40a52ee523b2529a773d5ffc1dc0071801c87b3d270b471b80ed01"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bfa8a30d46208db204854cadbb5d4baf5fcf8071ba5bf48190c3e59937962ebc"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3d958d035c4438e28c70e4321a2911302f10135ce78a9c7834c0cab4123d06a2"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.56"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c060b319f29dd25724f09a2ba1418f142f539b2be99fbf4d2d5a8f7330afb8eb"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wepoll-ffi"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
|
||||
dependencies = [
|
||||
"cc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
15
Cargo.toml
Normal file
15
Cargo.toml
Normal file
@ -0,0 +1,15 @@
|
||||
[package]
|
||||
name = "forktop"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
log = "0.4"
|
||||
env_logger = "0.9"
|
||||
thiserror = "1"
|
||||
async-std = "1"
|
||||
futures = "0.3.17"
|
||||
|
||||
nix = "0.23.1"
|
||||
12
src/error.rs
Normal file
12
src/error.rs
Normal file
@ -0,0 +1,12 @@
|
||||
use async_std::io;
|
||||
|
||||
use thiserror::Error;
|
||||
|
||||
#[derive(Error, Debug)]
|
||||
pub enum Error {
|
||||
#[error("{msg}: {src}")]
|
||||
Nix { msg: &'static str, src: nix::Error },
|
||||
|
||||
#[error("io: {0}")]
|
||||
Io(#[from] io::Error),
|
||||
}
|
||||
250
src/main.rs
Normal file
250
src/main.rs
Normal file
@ -0,0 +1,250 @@
|
||||
use log::{debug, error, info, warn};
|
||||
|
||||
mod error;
|
||||
|
||||
use error::Error;
|
||||
|
||||
use std::collections::HashMap;
|
||||
use std::ffi::{CStr, CString};
|
||||
use std::os::unix::io::{FromRawFd, RawFd};
|
||||
use std::sync::Arc;
|
||||
|
||||
use async_std::fs::File;
|
||||
use async_std::io::{self, ReadExt, WriteExt};
|
||||
use async_std::sync::Mutex;
|
||||
use async_std::task;
|
||||
use futures::try_join;
|
||||
|
||||
use nix::sys::ptrace::{self, Event, Options};
|
||||
use nix::sys::signal::Signal;
|
||||
use nix::sys::wait::{wait, WaitStatus};
|
||||
use nix::unistd::Pid;
|
||||
use nix::unistd::{self, ForkResult};
|
||||
|
||||
struct Child {
|
||||
pid: Pid,
|
||||
|
||||
stdin: File,
|
||||
stdout: File,
|
||||
stderr: File,
|
||||
}
|
||||
|
||||
struct ProcessDescription {
|
||||
state: ProcessState,
|
||||
parent: Option<Pid>,
|
||||
|
||||
name: Option<String>,
|
||||
}
|
||||
|
||||
enum ProcessState {
|
||||
Traced,
|
||||
Completed(u8),
|
||||
}
|
||||
|
||||
fn main() -> Result<(), Error> {
|
||||
let env = env_logger::Env::new().filter_or("LOG", "info");
|
||||
env_logger::init_from_env(env);
|
||||
|
||||
info!("forking child process...");
|
||||
|
||||
let child = spawn_child()?;
|
||||
task::block_on(async_main(child))
|
||||
}
|
||||
|
||||
fn spawn_child() -> Result<Child, Error> {
|
||||
let child_stdin = unistd::pipe().map_err(|e| Error::Nix {
|
||||
msg: "pipe",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
let child_stdout = unistd::pipe().map_err(|e| Error::Nix {
|
||||
msg: "pipe",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
let child_stderr = unistd::pipe().map_err(|e| Error::Nix {
|
||||
msg: "pipe",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
let pid = unsafe {
|
||||
match nix::unistd::fork().map_err(|e| Error::Nix {
|
||||
msg: "fork",
|
||||
src: e,
|
||||
})? {
|
||||
ForkResult::Parent { child } => child,
|
||||
ForkResult::Child => {
|
||||
let err = run_child(
|
||||
vec!["/bin/sh", "-c", "/bin/true"],
|
||||
child_stdin.0,
|
||||
child_stdout.1,
|
||||
child_stderr.1,
|
||||
);
|
||||
error!("error spawning child: {}", err);
|
||||
std::process::exit(1);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
Ok(Child {
|
||||
pid,
|
||||
stdin: unsafe { File::from_raw_fd(child_stdin.1) },
|
||||
stdout: unsafe { File::from_raw_fd(child_stdout.0) },
|
||||
stderr: unsafe { File::from_raw_fd(child_stderr.0) },
|
||||
})
|
||||
}
|
||||
|
||||
fn run_child(args: Vec<&str>, stdin: RawFd, stdout: RawFd, stderr: RawFd) -> Error {
|
||||
enum Never {}
|
||||
|
||||
fn int(args: Vec<&str>, stdin: RawFd, stdout: RawFd, stderr: RawFd) -> Result<Never, Error> {
|
||||
// swap 3 main fds
|
||||
unistd::dup2(stdin, 0).map_err(|e| Error::Nix {
|
||||
msg: "dup2",
|
||||
src: e,
|
||||
})?;
|
||||
unistd::dup2(stdout, 1).map_err(|e| Error::Nix {
|
||||
msg: "dup2",
|
||||
src: e,
|
||||
})?;
|
||||
unistd::dup2(stderr, 2).map_err(|e| Error::Nix {
|
||||
msg: "dup2",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
// ask to be traced (stops process)
|
||||
ptrace::traceme().map_err(|e| Error::Nix {
|
||||
msg: "PTRACE_TRACEME",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
unistd::execve::<_, &CStr>(
|
||||
&CString::new(args[0]).unwrap(),
|
||||
args.into_iter()
|
||||
.map(CString::new)
|
||||
.map(Result::unwrap)
|
||||
.collect::<Vec<_>>()
|
||||
.as_slice(),
|
||||
&[],
|
||||
)
|
||||
.map_err(|e| Error::Nix {
|
||||
msg: "execve",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
unreachable!("execve doesn't return on success")
|
||||
}
|
||||
|
||||
match int(args, stdin, stdout, stderr) {
|
||||
Ok(s) => match s {},
|
||||
Err(e) => e,
|
||||
}
|
||||
}
|
||||
|
||||
async fn async_main(child: Child) -> Result<(), Error> {
|
||||
let child_stdin = child.stdin;
|
||||
let child_stdout = child.stdout;
|
||||
let child_stderr = child.stderr;
|
||||
let child = child.pid;
|
||||
|
||||
let children = Arc::new(Mutex::new({
|
||||
let mut m = HashMap::new();
|
||||
m.insert(
|
||||
child,
|
||||
ProcessDescription {
|
||||
state: ProcessState::Traced,
|
||||
parent: None,
|
||||
name: Some("main".to_string()),
|
||||
},
|
||||
);
|
||||
m
|
||||
}));
|
||||
|
||||
let wait_loop = task::spawn(wait_loop(children.clone()));
|
||||
|
||||
ptrace::setoptions(
|
||||
child,
|
||||
Options::PTRACE_O_TRACECLONE
|
||||
| Options::PTRACE_O_TRACEFORK
|
||||
| Options::PTRACE_O_TRACEEXIT
|
||||
| Options::PTRACE_O_TRACEVFORK,
|
||||
)
|
||||
.map_err(|e| Error::Nix {
|
||||
msg: "PTRACE_SETOPTIONS",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
ptrace::cont(child, None).map_err(|e| Error::Nix {
|
||||
msg: "PTRACE_CONT",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
try_join!(wait_loop, task::spawn(handle_input(child_stdin)))?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn handle_input(mut stdin_pipe: File) -> Result<(), Error> {
|
||||
let mut stdin = io::stdin();
|
||||
|
||||
let mut bytes_in = vec![0 as u8; 128];
|
||||
let mut bytes_out = vec![0 as u8; 128];
|
||||
loop {
|
||||
let num_read = stdin.read(&mut bytes_in).await?;
|
||||
|
||||
for i in 0..num_read {
|
||||
debug!("forwarded byte: {}", i);
|
||||
bytes_out[i] = bytes_in[i];
|
||||
}
|
||||
|
||||
stdin_pipe.write_all(&bytes_out[0..num_read]).await?;
|
||||
}
|
||||
}
|
||||
|
||||
async fn wait_loop(children: Arc<Mutex<HashMap<Pid, ProcessDescription>>>) -> Result<(), Error> {
|
||||
while !children.lock().await.is_empty() {
|
||||
let wait_result = wait().map_err(|e| Error::Nix {
|
||||
msg: "wait",
|
||||
src: e,
|
||||
})?;
|
||||
|
||||
match &wait_result {
|
||||
WaitStatus::PtraceEvent(pid, _, event) => match match_event(*event) {
|
||||
Some(Event::PTRACE_EVENT_FORK) => info!("process {} forked", pid),
|
||||
Some(Event::PTRACE_EVENT_VFORK) => info!("process {} vforked", pid),
|
||||
Some(Event::PTRACE_EVENT_CLONE) => info!("process {} cloned", pid),
|
||||
Some(Event::PTRACE_EVENT_EXEC) => info!("process {} execed", pid),
|
||||
Some(Event::PTRACE_EVENT_VFORK_DONE) => {
|
||||
info!("process {} returned from vfork", pid)
|
||||
}
|
||||
Some(Event::PTRACE_EVENT_EXIT) => info!("process {} exited", pid),
|
||||
Some(Event::PTRACE_EVENT_SECCOMP) => {
|
||||
info!("process {} triggered a seccomp rule", pid)
|
||||
}
|
||||
Some(Event::PTRACE_EVENT_STOP) => info!("process {} stopped", pid),
|
||||
|
||||
Some(e) => warn!("new ptrace event added: {:?}", e),
|
||||
None => warn!("unrecognised ptrace event: {}", event),
|
||||
},
|
||||
WaitStatus::Stopped(pid, signal) => {
|
||||
info!("process {} stopped with signal {}", pid, signal)
|
||||
}
|
||||
s => warn!("unhandled signal: {:?}", s),
|
||||
};
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn match_event(v: i32) -> Option<Event> {
|
||||
match v {
|
||||
1 => Some(Event::PTRACE_EVENT_FORK),
|
||||
2 => Some(Event::PTRACE_EVENT_VFORK),
|
||||
3 => Some(Event::PTRACE_EVENT_CLONE),
|
||||
4 => Some(Event::PTRACE_EVENT_EXEC),
|
||||
5 => Some(Event::PTRACE_EVENT_VFORK_DONE),
|
||||
6 => Some(Event::PTRACE_EVENT_EXIT),
|
||||
7 => Some(Event::PTRACE_EVENT_SECCOMP),
|
||||
128 => Some(Event::PTRACE_EVENT_STOP),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user