diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2018-07-10 09:20:25 +0200 |
|---|---|---|
| committer | Karen Arutyunov <karen@codesynthesis.com> | 2018-07-10 14:58:50 +0300 |
| commit | 16b63f8cdf5b488ab2f4b0e029478b01a2d6b8a8 (patch) | |
| tree | 78509ede9ae2652e8c82f01ec91b35eba3c3c7e4 /libbutl/sha256.cxx | |
| parent | 681ca375fd5af01501a91a78214ab7a26ad67ac7 (diff) | |
Add support for hashing ifdstream
Diffstat (limited to 'libbutl/sha256.cxx')
| -rw-r--r-- | libbutl/sha256.cxx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libbutl/sha256.cxx b/libbutl/sha256.cxx index a688a15..c4556e7 100644 --- a/libbutl/sha256.cxx +++ b/libbutl/sha256.cxx @@ -27,6 +27,8 @@ extern "C" #include "sha256c.c" } +#include <cassert> + #ifndef __cpp_lib_modules #include <string> #include <cstddef> @@ -53,8 +55,10 @@ import std.core; #endif import butl.utility; // *case() +import butl.fdstream; #else #include <libbutl/utility.mxx> +#include <libbutl/fdstream.mxx> #endif using namespace std; @@ -74,6 +78,20 @@ namespace butl SHA256_Update (reinterpret_cast<SHA256_CTX*> (buf_), b, n); } + void sha256:: + append (ifdstream& is) + { + fdbuf* buf (dynamic_cast<fdbuf*> (is.rdbuf ())); + assert (buf != nullptr); + + while (is.peek () != ifdstream::traits_type::eof () && is.good ()) + { + size_t n (buf->egptr () - buf->gptr ()); + append (buf->gptr (), n); + buf->gbump (static_cast<int> (n)); + } + } + const sha256::digest_type& sha256:: binary () const { |