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who: fix --lookup

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This closes #2181.

`who --lookup` is failing with a runtime panic (double free).
Since `crate::dns-lookup` already includes a safe wrapper for `getaddrinfo`
I used this crate instead of further debugging the existing code in
utmpx::canon_host().

* It was neccessary to remove the version constraint for libc in uucore.
This commit is contained in:
Jan Scheer 2021-05-13 10:17:57 +02:00
parent a5f8ca60b5
commit a4fc2b5106
7 changed files with 79 additions and 65 deletions
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29
Cargo.lock generated
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@ -576,6 +576,18 @@ dependencies = [
"generic-array",
]
[[package]]
name = "dns-lookup"
version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "093d88961fd18c4ecacb8c80cd0b356463ba941ba11e0e01f9cf5271380b79dc"
dependencies = [
"cfg-if 1.0.0",
"libc",
"socket2",
"winapi 0.3.9",
]
[[package]]
name = "dunce"
version = "1.0.1"
@ -1445,6 +1457,17 @@ dependencies = [
"maybe-uninit",
]
[[package]]
name = "socket2"
version = "0.3.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
dependencies = [
"cfg-if 1.0.0",
"libc",
"winapi 0.3.9",
]
[[package]]
name = "strsim"
version = "0.8.0"
@ -1820,11 +1843,9 @@ name = "uu_df"
version = "0.0.6"
dependencies = [
"clap",
"libc",
"number_prefix",
"uucore",
"uucore_procs",
"winapi 0.3.9",
]
[[package]]
@ -2407,8 +2428,6 @@ name = "uu_stat"
version = "0.0.6"
dependencies = [
"clap",
"libc",
"time",
"uucore",
"uucore_procs",
]
@ -2672,6 +2691,7 @@ name = "uucore"
version = "0.0.8"
dependencies = [
"data-encoding",
"dns-lookup",
"dunce",
"getopts",
"lazy_static",
@ -2682,6 +2702,7 @@ dependencies = [
"thiserror",
"time",
"wild",
"winapi 0.3.9",
]
[[package]]