1 files changed, 70 insertions, 0 deletions
diff --git a/openssl-sys/src/sha.rs b/openssl-sys/src/sha.rs
new file mode 100644
index 00000000..a9e7b15c
--- /dev/null
+++ b/openssl-sys/src/sha.rs
@@ -0,0 +1,70 @@
+use libc::*;
+
+pub type SHA_LONG = c_uint;
+
+pub const SHA_LBLOCK: c_int = 16;
+
+#[repr(C)]
+pub struct SHA_CTX {
+    pub h0: SHA_LONG,
+    pub h1: SHA_LONG,
+    pub h2: SHA_LONG,
+    pub h3: SHA_LONG,
+    pub h4: SHA_LONG,
+    pub Nl: SHA_LONG,
+    pub Nh: SHA_LONG,
+    pub data: [SHA_LONG; SHA_LBLOCK as usize],
+    pub num: c_uint,
+}
+
+extern "C" {
+    pub fn SHA1_Init(c: *mut SHA_CTX) -> c_int;
+    pub fn SHA1_Update(c: *mut SHA_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn SHA1_Final(md: *mut c_uchar, c: *mut SHA_CTX) -> c_int;
+    pub fn SHA1(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+}
+
+#[repr(C)]
+pub struct SHA256_CTX {
+    pub h: [SHA_LONG; 8],
+    pub Nl: SHA_LONG,
+    pub Nh: SHA_LONG,
+    pub data: [SHA_LONG; SHA_LBLOCK as usize],
+    pub num: c_uint,
+    pub md_len: c_uint,
+}
+
+extern "C" {
+    pub fn SHA224_Init(c: *mut SHA256_CTX) -> c_int;
+    pub fn SHA224_Update(c: *mut SHA256_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn SHA224_Final(md: *mut c_uchar, c: *mut SHA256_CTX) -> c_int;
+    pub fn SHA224(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+    pub fn SHA256_Init(c: *mut SHA256_CTX) -> c_int;
+    pub fn SHA256_Update(c: *mut SHA256_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn SHA256_Final(md: *mut c_uchar, c: *mut SHA256_CTX) -> c_int;
+    pub fn SHA256(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+}
+
+pub type SHA_LONG64 = u64;
+
+#[repr(C)]
+pub struct SHA512_CTX {
+    pub h: [SHA_LONG64; 8],
+    pub Nl: SHA_LONG64,
+    pub Nh: SHA_LONG64,
+    // this is a union but we don't want to require 1.19
+    u: [SHA_LONG64; SHA_LBLOCK as usize],
+    pub num: c_uint,
+    pub md_len: c_uint,
+}
+
+extern "C" {
+    pub fn SHA384_Init(c: *mut SHA512_CTX) -> c_int;
+    pub fn SHA384_Update(c: *mut SHA512_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn SHA384_Final(md: *mut c_uchar, c: *mut SHA512_CTX) -> c_int;
+    pub fn SHA384(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+    pub fn SHA512_Init(c: *mut SHA512_CTX) -> c_int;
+    pub fn SHA512_Update(c: *mut SHA512_CTX, data: *const c_void, len: size_t) -> c_int;
+    pub fn SHA512_Final(md: *mut c_uchar, c: *mut SHA512_CTX) -> c_int;
+    pub fn SHA512(d: *const c_uchar, n: size_t, md: *mut c_uchar) -> *mut c_uchar;
+}