fix: retry getpwuid_r/getpwnam_r on ERANGE instead of erroring

[oiqgj]

Fixes #1666

Retries getpwuid_r/getpwnam_r on ERANGE using dynamic_fill, same pattern as Group::from_name/Group::from_gid_unchecked.

[oiqgj]

Could someone re-run the failed job?

Details

❯ SUDO_UNDER_TEST=ours cargo test -p sudo-compliance-tests insufficient_permissions_to_execute_shell -- --nocapture Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s Running unittests src/lib.rs (target/debug/deps/sudo_compliance_tests-8ca9b5cc431fc264)

running 1 test
[+] Building 24.5s (15/15) FINISHED docker:default
=> [internal] load build definition from ours.linux.Dockerfile 0.0s
=> => transferring dockerfile: 1.58kB 0.0s
=> [internal] load metadata for docker.io/library/rust:1-slim-trixie 1.5s
=> [stage-0 1/11] FROM docker.io/library/rust:1-slim-trixie@sha256:8e8cf8f7fd54a2d23d5a743b3a03f56e26b6c77427 12.4s
=> => resolve docker.io/library/rust:1-slim-trixie@sha256:8e8cf8f7fd54a2d23d5a743b3a03f56e26b6c774276c33fa05951 0.0s
=> => sha256:8e8cf8f7fd54a2d23d5a743b3a03f56e26b6c774276c33fa0595111704ebb15c 9.04kB / 9.04kB 0.0s
=> => sha256:fc0648ac2962539be80bd424729a20fd80f7b64bfba7e90bbd642aed6c697c5a 1.36kB / 1.36kB 0.0s
=> => sha256:34dde0b9e0d755792749c0bc6ffecb4cbe2ef342ca2697093a3199a442c37b8c 3.46kB / 3.46kB 0.0s
=> => sha256:26c307b5e35a59ce911f5fde5b9458120ec8734e831ea2da5649a9ad14abfd3d 29.78MB / 29.78MB 1.4s
=> => sha256:0b4d68e10fda543a1894d2b04e57db30c31aa57b422ae0ab719fcd6e35c70f79 293.29MB / 293.29MB 6.1s
=> => extracting sha256:26c307b5e35a59ce911f5fde5b9458120ec8734e831ea2da5649a9ad14abfd3d 1.0s
=> => extracting sha256:0b4d68e10fda543a1894d2b04e57db30c31aa57b422ae0ab719fcd6e35c70f79 5.4s
=> [internal] load build context 0.1s
=> => transferring context: 778.96kB 0.0s
=> [stage-0 2/11] RUN apt-get update && apt-get install -y --no-install-recommends apparmor libpam0g-dev l 4.3s
=> [stage-0 3/11] RUN cargo search sudo 0.8s
=> [stage-0 4/11] WORKDIR /usr/src/sudo 0.1s
=> [stage-0 5/11] COPY . . 0.1s
=> [stage-0 6/11] RUN --mount=type=cache,target=/usr/src/sudo/target cargo build --locked --features="gettext, 3.6s
=> [stage-0 7/11] RUN install -m 4755 build/sudo /usr/bin/sudo && install -m 4755 build/su /usr/bin/su && 0.2s
=> [stage-0 8/11] RUN mkdir -p /etc/sudoers.d 0.2s
=> [stage-0 9/11] RUN chsh -s /bin/sh 0.2s
=> [stage-0 10/11] RUN userdel ubuntu || true 0.2s
=> [stage-0 11/11] WORKDIR /tmp 0.1s
=> exporting to image 0.7s
=> => exporting layers 0.7s
=> => writing image sha256:873cf543bff9c00933d96f15b80acc6191cad407c09789ec7f8ee7488c4626b0 0.0s
=> => naming to docker.io/library/sudo-test-rs 0.0s
test sudo::flag_login::insufficient_permissions_to_execute_shell ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 855 filtered out; finished in 24.92s