Enumerate all of the listening processes and their ports
This commit is contained in:
John Doty
commit
bfa55d1492
4 changed files with 493 additions and 0 deletions
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.gitignore
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.gitignore
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/target
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Cargo.lock
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Cargo.lock
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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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version = 3
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[[package]]
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name = "adler"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
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[[package]]
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name = "android_system_properties"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
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[[package]]
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name = "bitflags"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "bumpalo"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
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[[package]]
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name = "byteorder"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
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[[package]]
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name = "cc"
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version = "1.0.73"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "chrono"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bfd4d1b31faaa3a89d7934dbded3111da0d2ef28e3ebccdb4f0179f5929d1ef1"
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dependencies = [
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"iana-time-zone",
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"js-sys",
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"num-integer",
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"num-traits",
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"time",
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"wasm-bindgen",
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"winapi",
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]
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[[package]]
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name = "core-foundation-sys"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
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[[package]]
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name = "crc32fast"
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version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "errno"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
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dependencies = [
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"errno-dragonfly",
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"libc",
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"winapi",
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]
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[[package]]
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name = "errno-dragonfly"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
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dependencies = [
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"cc",
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"libc",
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]
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[[package]]
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name = "flate2"
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version = "1.0.24"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f82b0f4c27ad9f8bfd1f3208d882da2b09c301bc1c828fd3a00d0216d2fbbff6"
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dependencies = [
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"crc32fast",
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"miniz_oxide",
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]
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[[package]]
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name = "fwd"
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version = "0.1.0"
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dependencies = [
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"procfs",
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]
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[[package]]
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name = "hex"
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version = "0.4.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
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[[package]]
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name = "iana-time-zone"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fd911b35d940d2bd0bea0f9100068e5b97b51a1cbe13d13382f132e0365257a0"
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dependencies = [
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"android_system_properties",
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"core-foundation-sys",
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"js-sys",
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"wasm-bindgen",
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"winapi",
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]
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[[package]]
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name = "io-lifetimes"
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version = "0.7.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "js-sys"
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version = "0.3.60"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
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dependencies = [
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"wasm-bindgen",
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]
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[[package]]
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name = "lazy_static"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]]
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name = "libc"
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version = "0.2.134"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "329c933548736bc49fd575ee68c89e8be4d260064184389a5b77517cddd99ffb"
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[[package]]
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name = "linux-raw-sys"
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version = "0.0.46"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d4d2456c373231a208ad294c33dc5bff30051eafd954cd4caae83a712b12854d"
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[[package]]
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name = "log"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "miniz_oxide"
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version = "0.5.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"adler",
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]
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[[package]]
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name = "num-integer"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"autocfg",
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"num-traits",
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]
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[[package]]
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name = "num-traits"
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dependencies = [
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"autocfg",
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]
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[[package]]
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name = "once_cell"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "proc-macro2"
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|
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"unicode-ident",
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]
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[[package]]
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name = "procfs"
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dependencies = [
|
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"bitflags",
|
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"byteorder",
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"chrono",
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"flate2",
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"hex",
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"lazy_static",
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"rustix",
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]
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[[package]]
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name = "quote"
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|
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"proc-macro2",
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]
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[[package]]
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|
||||||
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|
||||||
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"bitflags",
|
||||||
|
"errno",
|
||||||
|
"io-lifetimes",
|
||||||
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"libc",
|
||||||
|
"linux-raw-sys",
|
||||||
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"windows-sys",
|
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]
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[[package]]
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name = "syn"
|
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|
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|
||||||
|
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|
||||||
|
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|
||||||
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|
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]
|
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|
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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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|
||||||
|
"libc",
|
||||||
|
"wasi",
|
||||||
|
"winapi",
|
||||||
|
]
|
||||||
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|
||||||
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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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[[package]]
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||||||
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||||||
|
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||||||
|
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|
||||||
|
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|
||||||
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|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen"
|
||||||
|
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||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
"cfg-if",
|
||||||
|
"wasm-bindgen-macro",
|
||||||
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]
|
||||||
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|
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[[package]]
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||||||
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name = "wasm-bindgen-backend"
|
||||||
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||||||
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|
||||||
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|
||||||
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dependencies = [
|
||||||
|
"bumpalo",
|
||||||
|
"log",
|
||||||
|
"once_cell",
|
||||||
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"proc-macro2",
|
||||||
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"quote",
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"syn",
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"wasm-bindgen-shared",
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]
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[[package]]
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name = "wasm-bindgen-macro"
|
||||||
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version = "0.2.83"
|
||||||
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|
||||||
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|
||||||
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dependencies = [
|
||||||
|
"quote",
|
||||||
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"wasm-bindgen-macro-support",
|
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]
|
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|
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[[package]]
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||||||
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name = "wasm-bindgen-macro-support"
|
||||||
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|
||||||
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|
||||||
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|
||||||
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dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
"wasm-bindgen-backend",
|
||||||
|
"wasm-bindgen-shared",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasm-bindgen-shared"
|
||||||
|
version = "0.2.83"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
|
||||||
|
|
||||||
|
[[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-x86_64-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-sys"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
|
||||||
|
dependencies = [
|
||||||
|
"windows_aarch64_msvc",
|
||||||
|
"windows_i686_gnu",
|
||||||
|
"windows_i686_msvc",
|
||||||
|
"windows_x86_64_gnu",
|
||||||
|
"windows_x86_64_msvc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_msvc"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.36.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
|
||||||
9
Cargo.toml
Normal file
9
Cargo.toml
Normal file
|
|
@ -0,0 +1,9 @@
|
||||||
|
[package]
|
||||||
|
name = "fwd"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
procfs = "0.14.1"
|
||||||
66
src/main.rs
Normal file
66
src/main.rs
Normal file
|
|
@ -0,0 +1,66 @@
|
||||||
|
use procfs::process::FDTarget;
|
||||||
|
use std::collections::HashMap;
|
||||||
|
|
||||||
|
struct Entry {
|
||||||
|
port: u16,
|
||||||
|
desc: String,
|
||||||
|
}
|
||||||
|
|
||||||
|
fn get_entries() -> procfs::ProcResult<Vec<Entry>> {
|
||||||
|
let all_procs = procfs::process::all_processes()?;
|
||||||
|
|
||||||
|
// build up a map between socket inodes and process stat info. Ignore any
|
||||||
|
// error we encounter as it probably means we have no access to that
|
||||||
|
// process or something.
|
||||||
|
let mut map: HashMap<u64, String> = HashMap::new();
|
||||||
|
for p in all_procs {
|
||||||
|
if let Ok(process) = p {
|
||||||
|
if !process.is_alive() {
|
||||||
|
continue; // Ignore zombies.
|
||||||
|
}
|
||||||
|
|
||||||
|
if let (Ok(fds), Ok(cmd)) = (process.fd(), process.cmdline()) {
|
||||||
|
for fd in fds {
|
||||||
|
if let Ok(fd) = fd {
|
||||||
|
if let FDTarget::Socket(inode) = fd.target {
|
||||||
|
map.insert(inode, cmd.join(" "));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut h: HashMap<u16, Entry> = HashMap::new();
|
||||||
|
|
||||||
|
// Go through all the listening IPv4 and IPv6 sockets and take the first
|
||||||
|
// instance of listening on each port *if* the address is loopback or
|
||||||
|
// unspecified. (TODO: Do we want this restriction really?)
|
||||||
|
let tcp = procfs::net::tcp()?;
|
||||||
|
let tcp6 = procfs::net::tcp6()?;
|
||||||
|
for tcp_entry in tcp.into_iter().chain(tcp6) {
|
||||||
|
if tcp_entry.state == procfs::net::TcpState::Listen
|
||||||
|
&& (tcp_entry.local_address.ip().is_loopback()
|
||||||
|
|| tcp_entry.local_address.ip().is_unspecified())
|
||||||
|
&& !h.contains_key(&tcp_entry.local_address.port())
|
||||||
|
{
|
||||||
|
if let Some(cmd) = map.get(&tcp_entry.inode) {
|
||||||
|
h.insert(
|
||||||
|
tcp_entry.local_address.port(),
|
||||||
|
Entry {
|
||||||
|
port: tcp_entry.local_address.port(),
|
||||||
|
desc: cmd.clone(),
|
||||||
|
},
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(h.into_values().collect())
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
for e in get_entries().unwrap() {
|
||||||
|
println!("{}: {}", e.port, e.desc);
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Add table
Add a link
Reference in a new issue