From 14365ec9bee8fd3ae7afc7a6e28350196c081b95 Mon Sep 17 00:00:00 2001
From: Magnus Ulimoen <magnus@ulimoen.dev>
Date: Thu, 23 Jul 2020 22:28:15 +0200
Subject: [PATCH] Start of the project

---
 .gitignore             |  2 ++
 Cargo.toml             | 12 ++++++++++++
 sane-sys/Cargo.toml    | 13 +++++++++++++
 sane-sys/README.md     |  7 +++++++
 sane-sys/build.rs      | 20 ++++++++++++++++++++
 sane-sys/src/lib.rs    | 31 +++++++++++++++++++++++++++++++
 sane-sys/src/wrapper.h |  1 +
 src/main.rs            |  3 +++
 8 files changed, 89 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 sane-sys/Cargo.toml
 create mode 100644 sane-sys/README.md
 create mode 100644 sane-sys/build.rs
 create mode 100644 sane-sys/src/lib.rs
 create mode 100644 sane-sys/src/wrapper.h
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..96ef6c0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..c0f4002
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "skanny"
+version = "0.1.0"
+authors = ["Magnus Ulimoen <magnus@ulimoen.dev>"]
+edition = "2018"
+
+[dependencies]
+
+[workspace]
+members = [
+    "sane-sys"
+]
diff --git a/sane-sys/Cargo.toml b/sane-sys/Cargo.toml
new file mode 100644
index 0000000..9999ae9
--- /dev/null
+++ b/sane-sys/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "sane-sys"
+version = "0.1.0"
+authors = ["Magnus Ulimoen <magnus@ulimoen.dev>"]
+edition = "2018"
+links = "sane"
+build = "build.rs"
+readme = "README.md"
+
+[dependencies]
+
+[build-dependencies]
+bindgen = "0.54.1"
diff --git a/sane-sys/README.md b/sane-sys/README.md
new file mode 100644
index 0000000..031daaf
--- /dev/null
+++ b/sane-sys/README.md
@@ -0,0 +1,7 @@
+# sane-sys
+
+FFI wrapper for the [SANE API](http://www.sane-project.org) for consumption by rustaceans.
+
+## Prerequisites
+
+Requires the SANE library to be installed, including the headers when building this library.
diff --git a/sane-sys/build.rs b/sane-sys/build.rs
new file mode 100644
index 0000000..586417d
--- /dev/null
+++ b/sane-sys/build.rs
@@ -0,0 +1,20 @@
+use std::env;
+use std::path::PathBuf;
+
+fn main() {
+    println!("cargo:rerun-if-changed=src/wrapper.h");
+    println!("cargo:rerun-if-changed=build.rs");
+
+    println!("cargo:rustc-link-lib=sane");
+
+    let bindings = bindgen::Builder::default()
+        .header("src/wrapper.h")
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
+        .generate()
+        .expect("Unable to generate bindings to SANE");
+
+    let out_path = PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    bindings
+        .write_to_file(out_path.join("bindings.rs"))
+        .expect("Couldn't write SANE bindings");
+}
diff --git a/sane-sys/src/lib.rs b/sane-sys/src/lib.rs
new file mode 100644
index 0000000..cf6af3c
--- /dev/null
+++ b/sane-sys/src/lib.rs
@@ -0,0 +1,31 @@
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+
+pub const fn SANE_VERSION_MAJOR(code: SANE_Int) -> SANE_Word {
+    (code >> 24) as SANE_Word & 0xff
+}
+
+pub const fn SANE_VERSION_MINOR(code: SANE_Int) -> SANE_Word {
+    (code >> 16) as SANE_Word & 0xff
+}
+
+pub const fn SANE_VERSION_BUILD(code: SANE_Int) -> SANE_Word {
+    (code >> 0) as SANE_Word & 0xffff
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn smokescreen() {
+        use std::ptr::null_mut;
+        let status = unsafe { sane_init(null_mut(), None) };
+        assert_eq!(status, SANE_Status_SANE_STATUS_GOOD);
+
+        unsafe { sane_exit() }
+    }
+}
diff --git a/sane-sys/src/wrapper.h b/sane-sys/src/wrapper.h
new file mode 100644
index 0000000..4ae7d4b
--- /dev/null
+++ b/sane-sys/src/wrapper.h
@@ -0,0 +1 @@
+#include <sane/sane.h>
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}