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Ask openssl what version it is

This commit is contained in:
Steven Fackler 2015-02-13 21:13:27 -08:00
parent 9cb3b44e9a
commit 15ff737b8c
2 changed files with 7 additions and 17 deletions
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18
openssl-sys/build.rs
View File

@ -19,19 +19,13 @@ fn main() {
if target.contains("win32") || target.contains("win64") || target.contains("windows") {
println!("cargo:rustc-flags=-l crypto -l ssl -l gdi32 -l wsock32");
// going to assume the user has a new version of openssl
build_old_openssl_shim(false, vec![]);
return;
}
if let Ok(info) = pkg_config::Config::new().atleast_version("1.0.0").find("openssl") {
build_old_openssl_shim(false, info.include_paths);
build_old_openssl_shim(vec![]);
return;
}
let err = match pkg_config::find_library("openssl") {
Ok(info) => {
build_old_openssl_shim(true, info.include_paths);
build_old_openssl_shim(info.include_paths);
return;
}
Err(err) => err,
@ -40,23 +34,19 @@ fn main() {
// pkg-config doesn't know of OpenSSL on FreeBSD 10.1 and OpenBSD uses LibreSSL
if target.contains("bsd") {
println!("cargo:rustc-flags=-l crypto -l ssl");
// going to assume the base system includes a new version of openssl
build_old_openssl_shim(false, vec![]);
build_old_openssl_shim(vec![]);
return;
}
panic!("unable to find openssl: {}", err);
}
fn build_old_openssl_shim(is_old: bool, include_paths: Vec<Path>) {
fn build_old_openssl_shim(include_paths: Vec<Path>) {
let mut config = gcc::Config::new();
for path in include_paths {
config.include(path);
}
if is_old {
config.define("OLD_OPENSSL", None);
}
config.file("src/old_openssl_shim.c")
.compile("libold_openssl_shim.a");

6
openssl-sys/src/old_openssl_shim.c
View File

@ -1,6 +1,6 @@
#include <openssl/hmac.h>
#ifdef OLD_OPENSSL
#if OPENSSL_VERSION_NUMBER < 0x1000000L
// Copied from openssl crypto/hmac/hmac.c
int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
{
@ -33,7 +33,7 @@ int HMAC_Final_shim(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) {
return 1;
}
#else /* OLD_OPENSSL */
#else
int HMAC_Init_ex_shim(HMAC_CTX *ctx, const void *key, int key_len, const EVP_MD *md, ENGINE *impl) {
return HMAC_Init_ex(ctx, key, key_len, md, impl);
@ -46,4 +46,4 @@ int HMAC_Update_shim(HMAC_CTX *ctx, const unsigned char *data, int len) {
int HMAC_Final_shim(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) {
return HMAC_Final(ctx, md, len);
}
#endif /* OLD_OPENSSL */
#endif