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comparison src/libpam/answer.rs @ 80:5aa1a010f1e8

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Start using PAM headers; improve owned/borrowed distinction. - Uses bindgen to generate bindings (only if needed). - Gets the story together on owned vs. borrowed handles. - Reduces number of mutable borrows in handle operation (since `PamHandle` is neither `Send` nor `Sync`, we never have to worry about thread safety. - Improves a bunch of macros so we don't have our own special syntax for docs. - Implement question indirection for standard XSSO PAM implementations.
author Paul Fisher <paul@pfish.zone>
date Tue, 10 Jun 2025 01:09:30 -0400
parents 2128123b9406
children 05291b601f0a
comparison
equal deleted inserted replaced
79:2128123b9406 80:5aa1a010f1e8
1 //! Types used to communicate data from the application to the module. 1 //! Types used to communicate data from the application to the module.
2 2
3 use crate::libpam::conversation::OwnedMessage; 3 use crate::libpam::conversation::OwnedMessage;
4 use crate::libpam::memory; 4 use crate::libpam::memory;
5 use crate::libpam::memory::{CBinaryData, Immovable}; 5 use crate::libpam::memory::CBinaryData;
6 pub use crate::libpam::pam_ffi::Answer;
6 use crate::{ErrorCode, Result}; 7 use crate::{ErrorCode, Result};
7 use std::ffi::{c_int, c_void, CStr}; 8 use std::ffi::CStr;
8 use std::ops::{Deref, DerefMut}; 9 use std::ops::{Deref, DerefMut};
9 use std::{iter, mem, ptr, slice}; 10 use std::{iter, mem, ptr, slice};
10 11
11 /// The corridor via which the answer to Messages navigate through PAM. 12 /// The corridor via which the answer to Messages navigate through PAM.
12 #[derive(Debug)] 13 #[derive(Debug)]
191 } 192 }
192 memory::free(self.0.data); 193 memory::free(self.0.data);
193 self.0.data = ptr::null_mut() 194 self.0.data = ptr::null_mut()
194 } 195 }
195 } 196 }
196 }
197
198 /// Generic version of answer data.
199 ///
200 /// This has the same structure as [`BinaryAnswer`]
201 /// and [`TextAnswer`].
202 #[repr(C)]
203 #[derive(Debug)]
204 pub struct Answer {
205 /// Pointer to the data returned in an answer.
206 /// For most answers, this will be a [`CStr`], but for answers to
207 /// [`MessageStyle::BinaryPrompt`]s, this will be [`CBinaryData`]
208 /// (a Linux-PAM extension).
209 data: *mut c_void,
210 /// Unused.
211 return_code: c_int,
212 _marker: Immovable,
213 } 197 }
214 198
215 impl Answer { 199 impl Answer {
216 /// Frees the contents of this answer. 200 /// Frees the contents of this answer.
217 /// 201 ///