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comparison src/constants.rs @ 71:58f9d2a4df38

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Reorganize everything again??? - Splits ffi/memory stuff into a bunch of stuff in the pam_ffi module. - Builds infrastructure for passing Messages and Responses. - Adds tests for some things at least.
author Paul Fisher <paul@pfish.zone>
date Tue, 03 Jun 2025 21:54:58 -0400
parents 9f8381a1c09c
children 351bdc13005e
comparison
equal deleted inserted replaced
70:9f8381a1c09c 71:58f9d2a4df38
4 use libc::{c_int, c_uint}; 4 use libc::{c_int, c_uint};
5 use num_derive::FromPrimitive; 5 use num_derive::FromPrimitive;
6 use num_traits::FromPrimitive; 6 use num_traits::FromPrimitive;
7 use std::any; 7 use std::any;
8 use std::marker::PhantomData; 8 use std::marker::PhantomData;
9 use std::result::Result as StdResult;
9 10
10 bitflags! { 11 bitflags! {
11 /// The available PAM flags. 12 /// The available PAM flags.
12 /// 13 ///
13 /// See `/usr/include/security/_pam_types.h` and 14 /// See `/usr/include/security/_pam_types.h` and
135 #[error("call this function again to complete authentication stack")] 136 #[error("call this function again to complete authentication stack")]
136 Incomplete = 31, 137 Incomplete = 31,
137 } 138 }
138 139
139 /// A PAM-specific Result type with an [ErrorCode] error. 140 /// A PAM-specific Result type with an [ErrorCode] error.
140 pub type Result<T> = std::result::Result<T, ErrorCode>; 141 pub type Result<T> = StdResult<T, ErrorCode>;
141 142
142 impl ErrorCode { 143 impl ErrorCode {
143 /// Converts this [Result] into a C-compatible result code. 144 /// Converts this [Result] into a C-compatible result code.
144 pub fn result_to_c<T>(value: Result<T>) -> c_int { 145 pub fn result_to_c<T>(value: Result<T>) -> c_int {
145 match value { 146 match value {
159 } 160 }
160 161
161 impl TryFrom<c_int> for ErrorCode { 162 impl TryFrom<c_int> for ErrorCode {
162 type Error = InvalidEnum<Self>; 163 type Error = InvalidEnum<Self>;
163 164
164 fn try_from(value: c_int) -> std::result::Result<Self, Self::Error> { 165 fn try_from(value: c_int) -> StdResult<Self, Self::Error> {
165 Self::from_i32(value).ok_or(value.into()) 166 Self::from_i32(value).ok_or(value.into())
166 } 167 }
167 } 168 }
168 169
169 impl From<ErrorCode> for c_int { 170 impl From<ErrorCode> for c_int {
191 } 192 }
192 193
193 /// Returned when text that should not have any `\0` bytes in it does. 194 /// Returned when text that should not have any `\0` bytes in it does.
194 /// Analogous to [`std::ffi::NulError`], but the data it was created from 195 /// Analogous to [`std::ffi::NulError`], but the data it was created from
195 /// is borrowed. 196 /// is borrowed.
196 #[derive(Debug, thiserror::Error)]
197 #[error("null byte within input at byte {0}")]
198 pub struct NulError(pub usize);
199
200 /// Returned when trying to fit too much data into a binary message.
201 #[derive(Debug, thiserror::Error)]
202 #[error("cannot create a message of {actual} bytes; maximum is {max}")]
203 pub struct TooBigError {
204 pub actual: usize,
205 pub max: usize,
206 }
207
208 #[cfg(test)] 197 #[cfg(test)]
209 mod tests { 198 mod tests {
210 use super::*; 199 use super::*;
211 200
212 #[test] 201 #[test]