Initial Commit
This commit is contained in:
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
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/target
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251
Cargo.lock
generated
Normal file
251
Cargo.lock
generated
Normal file
@ -0,0 +1,251 @@
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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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||||||
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version = 4
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||||||
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[[package]]
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||||||
|
name = "anstream"
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||||||
|
version = "0.6.18"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
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||||||
|
dependencies = [
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||||||
|
"anstyle",
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||||||
|
"anstyle-parse",
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||||||
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"anstyle-query",
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"anstyle-wincon",
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"colorchoice",
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"is_terminal_polyfill",
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"utf8parse",
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]
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[[package]]
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||||||
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name = "anstyle"
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||||||
|
version = "1.0.10"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
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||||||
|
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|
[[package]]
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||||||
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name = "anstyle-parse"
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||||||
|
version = "0.2.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
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|
dependencies = [
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"utf8parse",
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]
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|
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|
[[package]]
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|
name = "anstyle-query"
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||||||
|
version = "1.1.2"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
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|
dependencies = [
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|
"windows-sys",
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]
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[[package]]
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name = "anstyle-wincon"
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||||||
|
version = "3.0.7"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e"
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|
dependencies = [
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"anstyle",
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|
"once_cell",
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"windows-sys",
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|
]
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[[package]]
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||||||
|
name = "clap"
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||||||
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version = "4.5.38"
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "ed93b9805f8ba930df42c2590f05453d5ec36cbb85d018868a5b24d31f6ac000"
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|
dependencies = [
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|
"clap_builder",
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|
"clap_derive",
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]
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[[package]]
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|
name = "clap_builder"
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|
version = "4.5.38"
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "379026ff283facf611b0ea629334361c4211d1b12ee01024eec1591133b04120"
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|
dependencies = [
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"anstream",
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"anstyle",
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"clap_lex",
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"strsim",
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]
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[[package]]
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name = "clap_derive"
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|
version = "4.5.32"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "clap_lex"
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version = "0.7.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
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[[package]]
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name = "colorchoice"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
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|
[[package]]
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|
name = "getaddrinfo"
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version = "1.0.0"
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dependencies = [
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"clap",
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"libc",
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]
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[[package]]
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name = "heck"
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version = "0.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
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[[package]]
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name = "is_terminal_polyfill"
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version = "1.70.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
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[[package]]
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name = "libc"
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version = "0.2.172"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
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|
[[package]]
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name = "once_cell"
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version = "1.21.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
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|
[[package]]
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|
name = "proc-macro2"
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|
version = "1.0.95"
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
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|
dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.40"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
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|
dependencies = [
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"proc-macro2",
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]
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[[package]]
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|
name = "strsim"
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|
version = "0.11.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
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||||||
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[[package]]
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|
name = "syn"
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|
version = "2.0.101"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
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|
dependencies = [
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||||||
|
"proc-macro2",
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"quote",
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"unicode-ident",
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]
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|
[[package]]
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name = "unicode-ident"
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||||||
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version = "1.0.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
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||||||
|
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||||||
|
[[package]]
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||||||
|
name = "utf8parse"
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||||||
|
version = "0.2.2"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
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||||||
|
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||||||
|
[[package]]
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||||||
|
name = "windows-sys"
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||||||
|
version = "0.59.0"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
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||||||
|
dependencies = [
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||||||
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"windows-targets",
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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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name = "windows-targets"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
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||||||
|
dependencies = [
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||||||
|
"windows_aarch64_gnullvm",
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||||||
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"windows_aarch64_msvc",
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||||||
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"windows_i686_gnu",
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||||||
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"windows_i686_gnullvm",
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||||||
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"windows_i686_msvc",
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||||||
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"windows_x86_64_gnu",
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||||||
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"windows_x86_64_gnullvm",
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||||||
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"windows_x86_64_msvc",
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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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||||||
|
name = "windows_aarch64_gnullvm"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
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||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_aarch64_msvc"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_i686_gnu"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
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||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_i686_gnullvm"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_i686_msvc"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_x86_64_gnu"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
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||||||
|
version = "0.52.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
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||||||
|
|
||||||
|
[[package]]
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||||||
|
name = "windows_x86_64_msvc"
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||||||
|
version = "0.52.6"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||||
8
Cargo.toml
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8
Cargo.toml
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@ -0,0 +1,8 @@
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[package]
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name = "getaddrinfo"
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version = "1.0.0"
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edition = "2024"
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[dependencies]
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||||||
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clap = { version = "4.5.38", features = ["derive"] }
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libc = "0.2.172"
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73
src/main.rs
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73
src/main.rs
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@ -0,0 +1,73 @@
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use std::{
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ffi::{CStr, CString},
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mem::zeroed,
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ptr::{NonNull, null, null_mut},
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};
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use clap::Parser;
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use libc::{AF_INET, getaddrinfo};
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#[derive(Parser)]
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|
struct Opt {
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|
hostname: String,
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|
}
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||||||
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fn main() {
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let Opt { hostname } = Opt::parse();
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|
println!("{hostname}");
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|
let hostname = CString::new(hostname).unwrap();
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||||||
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||||||
|
let hints = libc::addrinfo {
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|
ai_family: AF_INET,
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|
..unsafe { zeroed() }
|
||||||
|
};
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||||||
|
|
||||||
|
let mut addrinfo_ptr: *mut libc::addrinfo = null_mut();
|
||||||
|
let result = unsafe { getaddrinfo(hostname.as_ptr(), null(), &hints, &mut addrinfo_ptr) };
|
||||||
|
|
||||||
|
if result != 0 {
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||||||
|
let error = std::io::Error::from_raw_os_error(result);
|
||||||
|
eprintln!("{error}");
|
||||||
|
}
|
||||||
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|
||||||
|
for i in 1.. {
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||||||
|
let Some(addrinfo) = NonNull::new(addrinfo_ptr) else {
|
||||||
|
break;
|
||||||
|
};
|
||||||
|
|
||||||
|
let addrinfo = unsafe { addrinfo.read() };
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||||||
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||||||
|
println!();
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||||||
|
println!("entry {i}");
|
||||||
|
let libc::addrinfo {
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||||||
|
ai_flags,
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|
ai_family,
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||||||
|
ai_socktype,
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||||||
|
ai_protocol,
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||||||
|
ai_addrlen,
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|
ai_addr,
|
||||||
|
ai_canonname,
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||||||
|
ai_next,
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||||||
|
} = addrinfo;
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||||||
|
|
||||||
|
println!(" flags: {ai_flags}");
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||||||
|
println!(" family: {ai_family}");
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||||||
|
println!(" socktype: {ai_socktype}");
|
||||||
|
println!(" protocol: {ai_protocol}");
|
||||||
|
println!(" addrlen: {ai_addrlen}");
|
||||||
|
|
||||||
|
if let Some(ai_addr) = NonNull::new(ai_addr) {
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||||||
|
let libc::sockaddr { sa_family, sa_data } = unsafe { ai_addr.read() };
|
||||||
|
let sa_data = sa_data.map(|i| i as u8);
|
||||||
|
println!(" addr: family={sa_family}, data={sa_data:?}");
|
||||||
|
}
|
||||||
|
|
||||||
|
if let Some(ai_canonname) = NonNull::new(ai_canonname) {
|
||||||
|
let ai_canonname = unsafe { CStr::from_ptr(ai_canonname.as_ptr()) };
|
||||||
|
println!(" canonname: {ai_canonname:?}");
|
||||||
|
}
|
||||||
|
|
||||||
|
addrinfo_ptr = ai_next;
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user