48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
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// SPDX-FileCopyrightText: 2022 Matteo Settenvini <matteo.settenvini@montecristosoftware.eu>
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// SPDX-License-Identifier: GPL-3.0-or-later
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use {
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anyhow::{ensure, Result},
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std::ffi::CString,
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std::os::raw::c_int,
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std::os::unix::fs::symlink,
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std::path::PathBuf,
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std::sync::Once,
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};
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include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
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static SETUP: Once = Once::new();
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pub fn setup() -> Result<()> {
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unsafe {
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static mut NSS_CONFIG_STATUS: c_int = 0;
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SETUP.call_once(|| {
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let out_dir = PathBuf::from(env!("OUT_DIR"));
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let library_path = test_cdylib::build_current_project();
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let mut library_filename = library_path.file_name().unwrap().to_owned();
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library_filename.push(".2"); // required for NSS 2 modules
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let dest = out_dir.join(library_filename);
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symlink(&library_path, &dest).expect(&format!(
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"Unable to create symlink to library ({} -> {})",
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library_path.to_string_lossy(),
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dest.to_string_lossy()
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));
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std::env::set_var("LD_LIBRARY_PATH", out_dir);
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let db = CString::new("hosts").unwrap();
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let resolvers = CString::new("files malcontent [UNAVAIL=return] dns").unwrap();
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NSS_CONFIG_STATUS = __nss_configure_lookup(db.as_ptr(), resolvers.as_ptr());
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});
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ensure!(
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NSS_CONFIG_STATUS == 0,
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"Unable to configure NSS to load module: __nss_configure_lookup() returned {}",
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NSS_CONFIG_STATUS
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);
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Ok(())
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}
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}
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