crates/nonstick: src/pam_ffi/message.rs annotate

annotate src/pam_ffi/message.rs @ 73:ac6881304c78

Do conversations, along with way too much stuff. This implements conversations, along with all the memory management brouhaha that goes along with it. The conversation now lives directly on the handle rather than being a thing you have to get from it and then call manually. It Turns Out this makes things a lot easier! I guess we reorganized things again. For the last time. For real. I promise. This all passes ASAN, so it seems Pretty Good!

author	Paul Fisher <paul@pfish.zone>
date	Thu, 05 Jun 2025 03:41:38 -0400
parents	47eb242a4f88
children	c7c596e6388f

rev	line source
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	1 //! Data and types dealing with PAM messages.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	2
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	3 use crate::constants::InvalidEnum;
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	4 use crate::conv::Message;
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	5 use crate::pam_ffi::memory;
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	6 use crate::pam_ffi::memory::{CBinaryData, Immovable, NulError, TooBigError};
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	7 use num_derive::FromPrimitive;
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	8 use num_traits::FromPrimitive;
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	9 use std::ffi::{c_int, c_void, CStr};
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	10 use std::result::Result as StdResult;
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	11 use std::str::Utf8Error;
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	12 use std::{ptr, slice};
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	13
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	14 #[derive(Debug, thiserror::Error)]
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	15 #[error("error creating PAM message: {0}")]
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	16 pub enum ConversionError {
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	17 InvalidEnum(#[from] InvalidEnum<Style>),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	18 Utf8Error(#[from] Utf8Error),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	19 NulError(#[from] NulError),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	20 TooBigError(#[from] TooBigError),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	21 }
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	22
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	23 /// The C enum values for messages shown to the user.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	24 #[derive(Debug, PartialEq, FromPrimitive)]
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	25 pub enum Style {
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	26 /// Requests information from the user; will be masked when typing.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	27 PromptEchoOff = 1,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	28 /// Requests information from the user; will not be masked.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	29 PromptEchoOn = 2,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	30 /// An error message.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	31 ErrorMsg = 3,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	32 /// An informational message.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	33 TextInfo = 4,
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	34 /// Yes/No/Maybe conditionals. A Linux-PAM extension.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	35 RadioType = 5,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	36 /// For server–client non-human interaction.
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	37 ///
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	38 /// NOT part of the X/Open PAM specification.
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	39 /// A Linux-PAM extension.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	40 BinaryPrompt = 7,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	41 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	42
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	43 impl TryFrom<c_int> for Style {
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	44 type Error = InvalidEnum<Self>;
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	45 fn try_from(value: c_int) -> StdResult<Self, Self::Error> {
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	46 Self::from_i32(value).ok_or(value.into())
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	47 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	48 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	49
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	50 impl From<Style> for c_int {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	51 fn from(val: Style) -> Self {
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	52 val as Self
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	53 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	54 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	55
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	56 /// A message sent by PAM or a module to an application.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	57 /// This message, and its internal data, is owned by the creator
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	58 /// (either the module or PAM itself).
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	59 #[repr(C)]
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	60 pub struct RawMessage {
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	61 /// The style of message to request.
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	62 style: c_int,
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	63 /// A description of the data requested.
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	64 ///
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	65 /// For most requests, this will be an owned [`CStr`], but for requests
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	66 /// with [`Style::BinaryPrompt`], this will be [`CBinaryData`]
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	67 /// (a Linux-PAM extension).
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	68 data: *mut c_void,
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	69 _marker: Immovable,
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	70 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	71
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	72 impl RawMessage {
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	73 pub fn set(&mut self, msg: Message) -> StdResult<(), ConversionError> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	74 let (style, data) = copy_to_heap(msg)?;
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	75 self.clear();
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	76 // SAFETY: We allocated this ourselves or were given it by PAM.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	77 // Otherwise, it's null, but free(null) is fine.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	78 unsafe { libc::free(self.data) };
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	79 self.style = style as c_int;
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	80 self.data = data;
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	81 Ok(())
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	82 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	83
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	84 /// Gets this message's data pointer as a string.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	85 ///
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	86 /// # Safety
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	87 ///
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	88 /// It's up to you to pass this only on types with a string value.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	89 unsafe fn string_data(&self) -> StdResult<&str, Utf8Error> {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	90 if self.data.is_null() {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	91 Ok("")
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	92 } else {
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	93 CStr::from_ptr(self.data.cast()).to_str()
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	94 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	95 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	96
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	97 /// Zeroes out the data stored here.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	98 fn clear(&mut self) {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	99 // SAFETY: We either created this data or we got it from PAM.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	100 // After this function is done, it will be zeroed out.
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	101 unsafe {
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	102 if let Ok(style) = Style::try_from(self.style) {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	103 match style {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	104 Style::BinaryPrompt => {
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	105 if let Some(d) = self.data.cast::<CBinaryData>().as_mut() {
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	106 d.zero_contents()
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	107 }
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	108 }
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	109 Style::TextInfo
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	110 \| Style::RadioType
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	111 \| Style::ErrorMsg
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	112 \| Style::PromptEchoOff
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	113 \| Style::PromptEchoOn => memory::zero_c_string(self.data),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	114 }
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	115 };
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	116 libc::free(self.data);
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	117 self.data = ptr::null_mut();
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	118 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	119 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	120 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	121
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	122 /// Copies the contents of this message to the C heap.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	123 fn copy_to_heap(msg: Message) -> StdResult<(Style, *mut c_void), ConversionError> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	124 let alloc = \|style, text\| Ok((style, memory::malloc_str(text)?.cast()));
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	125 match msg {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	126 Message::MaskedPrompt(text) => alloc(Style::PromptEchoOff, text),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	127 Message::Prompt(text) => alloc(Style::PromptEchoOn, text),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	128 Message::RadioPrompt(text) => alloc(Style::RadioType, text),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	129 Message::Error(text) => alloc(Style::ErrorMsg, text),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	130 Message::Info(text) => alloc(Style::TextInfo, text),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	131 Message::BinaryPrompt { data, data_type } => Ok((
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	132 Style::BinaryPrompt,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	133 (CBinaryData::alloc(data, data_type)?).cast(),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	134 )),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	135 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	136 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	137
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	138 /// Abstraction of a list-of-messages to be sent in a PAM conversation.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	139 ///
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	140 /// On Linux-PAM and other compatible implementations, `messages`
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	141 /// is treated as a pointer-to-pointers, like `int argc, char **argv`.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	142 /// (In this situation, the value of `OwnedMessages.indirect` is
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	143 /// the pointer passed to `pam_conv`.)
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	144 ///
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	145 /// ```text
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	146 /// ╔═ OwnedMsgs ═╗ points to ┌─ Indirect ─┐ ╔═ Message ═╗
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	147 /// ║ indirect ┄┄┄╫┄┄┄┄┄┄┄┄┄┄┄> │ base[0] ┄┄┄┼┄┄┄┄┄> ║ style ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	148 /// ║ count ║ │ base[1] ┄┄┄┼┄┄┄╮ ║ data ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	149 /// ╚═════════════╝ │ ... │ ┆ ╚═══════════╝
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	150 /// ┆
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	151 /// ┆ ╔═ Message ═╗
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	152 /// ╰┄┄> ║ style ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	153 /// ║ data ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	154 /// ╚═══════════╝
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	155 /// ```
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	156 ///
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	157 /// On OpenPAM and other compatible implementations (like Solaris),
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	158 /// `messages` is a pointer-to-pointer-to-array. This appears to be
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	159 /// the correct implementation as required by the XSSO specification.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	160 ///
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	161 /// ```text
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	162 /// ╔═ OwnedMsgs ═╗ points to ┌─ Indirect ─┐ ╔═ Message[] ═╗
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	163 /// ║ indirect ┄┄┄╫┄┄┄┄┄┄┄┄┄┄┄> │ base ┄┄┄┄┄┄┼┄┄┄┄┄> ║ style ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	164 /// ║ count ║ └────────────┘ ║ data ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	165 /// ╚═════════════╝ ╟─────────────╢
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	166 /// ║ style ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	167 /// ║ data ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	168 /// ╟─────────────╢
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	169 /// ║ ... ║
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	170 /// ```
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	171 ///
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	172 /// *THIS LIBRARY CURRENTLY SUPPORTS ONLY LINUX-PAM.*
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	173 pub struct OwnedMessages {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	174 /// An indirection to the messages themselves, stored on the C heap.
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	175 indirect: *mut MessageIndirector,
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	176 /// The number of messages in the list.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	177 count: usize,
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	178 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	179
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	180 impl OwnedMessages {
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	181 /// Allocates data to store messages on the C heap.
58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	182 pub fn alloc(count: usize) -> Self {
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	183 Self {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	184 indirect: MessageIndirector::alloc(count),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	185 count,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	186 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	187 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	188
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	189 /// The pointer to the thing with the actual list.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	190 pub fn indirector(&self) -> *const MessageIndirector {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	191 self.indirect
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	192 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	193
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	194 pub fn iter(&self) -> impl Iterator<Item = &RawMessage> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	195 // SAFETY: we're iterating over an amount we know.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	196 unsafe { (*self.indirect).iter(self.count) }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	197 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	198
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	199 pub fn iter_mut(&mut self) -> impl Iterator<Item = &mut RawMessage> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	200 // SAFETY: we're iterating over an amount we know.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	201 unsafe { (*self.indirect).iter_mut(self.count) }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	202 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	203 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	204
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	205 impl Drop for OwnedMessages {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	206 fn drop(&mut self) {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	207 // SAFETY: We are valid and have a valid pointer.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	208 // Once we're done, everything will be safe.
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	209 unsafe {
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	210 if let Some(indirect) = self.indirect.as_mut() {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	211 indirect.free(self.count)
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	212 }
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	213 libc::free(self.indirect.cast());
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	214 self.indirect = ptr::null_mut();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	215 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	216 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	217 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	218
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	219 /// An indirect reference to messages.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	220 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	221 /// This is kept separate to provide a place where we can separate
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	222 /// the pointer-to-pointer-to-list from pointer-to-list-of-pointers.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	223 #[repr(transparent)]
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	224 pub struct MessageIndirector {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	225 base: [*mut RawMessage; 0],
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	226 _marker: Immovable,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	227 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	228
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	229 impl MessageIndirector {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	230 /// Allocates memory for this indirector and all its members.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	231 fn alloc(count: usize) -> *mut Self {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	232 // SAFETY: We're only allocating, and when we're done,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	233 // everything will be in a known-good state.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	234 unsafe {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	235 let me_ptr: *mut MessageIndirector =
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	236 libc::calloc(count, size_of::<*mut RawMessage>()).cast();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	237 let me = &mut *me_ptr;
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	238 let ptr_list = slice::from_raw_parts_mut(me.base.as_mut_ptr(), count);
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	239 for entry in ptr_list {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	240 *entry = libc::calloc(1, size_of::<RawMessage>()).cast();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	241 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	242 me
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	243 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	244 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	245
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	246 /// Returns an iterator yielding the given number of messages.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	247 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	248 /// # Safety
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	249 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	250 /// You have to provide the right count.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	251 pub unsafe fn iter(&self, count: usize) -> impl Iterator<Item = &RawMessage> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	252 (0..count).map(\|idx\| &**self.base.as_ptr().add(idx))
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	253 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	254
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	255 /// Returns a mutable iterator yielding the given number of messages.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	256 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	257 /// # Safety
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	258 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	259 /// You have to provide the right count.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	260 pub unsafe fn iter_mut(&mut self, count: usize) -> impl Iterator<Item = &mut RawMessage> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	261 (0..count).map(\|idx\| &mut **self.base.as_mut_ptr().add(idx))
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	262 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	263
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	264 /// Frees this and everything it points to.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	265 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	266 /// # Safety
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	267 ///
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	268 /// You have to pass the right size.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	269 unsafe fn free(&mut self, count: usize) {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	270 let msgs = slice::from_raw_parts_mut(self.base.as_mut_ptr(), count);
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	271 for msg in msgs {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	272 if let Some(msg) = msg.as_mut() {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	273 msg.clear();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	274 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	275 libc::free(msg.cast());
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	276 *msg = ptr::null_mut();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	277 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	278 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	279 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	280
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	281 impl<'a> TryFrom<&'a RawMessage> for Message<'a> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	282 type Error = ConversionError;
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	283
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	284 /// Retrieves the data stored in this message.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	285 fn try_from(input: &RawMessage) -> StdResult<Message, ConversionError> {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	286 let style: Style = input.style.try_into()?;
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	287 // SAFETY: We either allocated this message ourselves or were provided it by PAM.
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	288 let result = unsafe {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	289 match style {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	290 Style::PromptEchoOff => Message::MaskedPrompt(input.string_data()?),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	291 Style::PromptEchoOn => Message::Prompt(input.string_data()?),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	292 Style::TextInfo => Message::Info(input.string_data()?),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	293 Style::ErrorMsg => Message::Error(input.string_data()?),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	294 Style::RadioType => Message::Error(input.string_data()?),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	295 Style::BinaryPrompt => input.data.cast::<CBinaryData>().as_ref().map_or_else(
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	296 \|\| Message::BinaryPrompt {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	297 data_type: 0,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	298 data: &[],
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	299 },
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	300 \|data\| Message::BinaryPrompt {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	301 data_type: data.data_type(),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	302 data: data.contents(),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	303 },
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	304 ),
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	305 }
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	306 };
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	307 Ok(result)
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	308 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	309 }
8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	310
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	311 #[cfg(test)]
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	312 mod tests {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	313 use crate::conv::Message;
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	314 use crate::pam_ffi::message::OwnedMessages;
71 58f9d2a4df38 Reorganize everything again??? Paul Fisher <paul@pfish.zone> parents: 70 diff changeset	315
73 ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	316 #[test]
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	317 fn test_owned_messages() {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	318 let mut tons_of_messages = OwnedMessages::alloc(10);
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	319 let mut msgs: Vec<_> = tons_of_messages.iter_mut().collect();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	320 assert!(msgs.get(10).is_none());
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	321 let last_msg = &mut msgs[9];
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	322 last_msg.set(Message::MaskedPrompt("hocus pocus")).unwrap();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	323 let another_msg = &mut msgs[0];
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	324 another_msg
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	325 .set(Message::BinaryPrompt {
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	326 data: &[5, 4, 3, 2, 1],
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	327 data_type: 99,
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	328 })
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	329 .unwrap();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	330 let overwrite = &mut msgs[3];
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	331 overwrite.set(Message::Prompt("what")).unwrap();
ac6881304c78 Do conversations, along with way too much stuff. Paul Fisher <paul@pfish.zone> parents: 72 diff changeset	332 overwrite.set(Message::Prompt("who")).unwrap();
70 9f8381a1c09c Implement low-level conversation primitives. Paul Fisher <paul@pfish.zone> parents: 69 diff changeset	333 }
69 8f3ae0c7ab92 Rework conversation data types and make safe wrappers. Paul Fisher <paul@pfish.zone> parents: 66 diff changeset	334 }

Mercurial > crates > nonstick

annotate src/pam_ffi/message.rs @ 73:ac6881304c78