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annotate libpam-sys/src/lib.rs @ 116:a12706e42c9d default tip

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Logging, macros, and building: - Changes logging API to accept the `Location` of the log statement. Fixes OpenPAM implementation. - Stops publicly exporting doc macros. - Uses dlopen to detect the PAM library rather than header jankery.
author Paul Fisher <paul@pfish.zone>
date Sun, 29 Jun 2025 18:27:51 -0400
parents 2346fd501b7a
children
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1 #![doc = include_str!("../README.md")]
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2 //!
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3 //! ## PAM implementation
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4 //!
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5 #![doc = concat!("This documentation was built for the **", __pam_impl_name__!(), "** implementation.")]
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6
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7 use libpam_sys_impls::{__pam_impl_enum__, __pam_impl_name__};
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8
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9 mod constants;
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10 pub mod helpers;
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11 mod structs;
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12
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13 /// A `cfg`-like attribute macro for code specific to one PAM implementation.
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14 ///
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15 /// Different versions of PAM export different functions and have some
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16 /// meaningful internal implementation differences, like the way `pam_conv`
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17 /// is handled (see [the Linux-PAM man page for details][man7]).
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18 ///
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19 /// This macro will let you figure out which PAM you're compiling
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20 /// (and eventually running) against so you can make those critical changes.
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21 ///
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22 /// The implementation names are the same as those in the [`PamImpl`] enum.
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23 ///
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24 /// ```
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25 /// use libpam_sys::cfg_pam_impl;
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26 ///
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27 /// #[cfg_pam_impl("Sun")]
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28 /// fn do_something() { /* Illumos/Solaris-only code */ }
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29 ///
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30 /// #[cfg_pam_impl(not("Sun"))]
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31 /// fn do_something() { /* non-Illumos code */ }
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32 ///
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33 /// #[cfg_pam_impl(any("LinuxPam", "MinimalOpenPam"))]
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34 /// fn do_something_else() { /* Linux-PAM or minimal OpenPAM */ }
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35 ///
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36 /// #[cfg_pam_impl(not(any("Sun", "OpenPam")))]
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37 /// fn do_a_third_thing() { /* Neither Sun nor OpenPAM */ }
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38 ///
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39 /// #[cfg_pam_impl(any())]
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40 /// fn this_will_never_build() { /* why would you do this? */ }
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41 ///
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42 /// #[cfg_pam_impl(not(any()))]
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43 /// fn this_will_always_build() { /* I, sure, whatever, you do you. */ }
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44 /// ```
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45 ///
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46 /// [man7]: https://man7.org/linux/man-pages/man3/pam_conv.3.html
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47 #[doc(inline)]
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48 pub use libpam_sys_impls::cfg_pam_impl;
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49
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50 // Looking for the actual code defining this enum?
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51 // It's in the build.rs file for libpam_sys_impls.
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52 __pam_impl_enum__!(#[non_exhaustive]);
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53
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54 #[doc(inline)]
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55 pub use crate::{constants::*, structs::*};