diff options
Diffstat (limited to 'vendor/src/github.com/spacemonkeygo/openssl/digest.go')
-rw-r--r-- | vendor/src/github.com/spacemonkeygo/openssl/digest.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/src/github.com/spacemonkeygo/openssl/digest.go b/vendor/src/github.com/spacemonkeygo/openssl/digest.go new file mode 100644 index 00000000000..44d4d001b13 --- /dev/null +++ b/vendor/src/github.com/spacemonkeygo/openssl/digest.go @@ -0,0 +1,53 @@ +// Copyright (C) 2015 Space Monkey, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build cgo + +package openssl + +// #include <openssl/evp.h> +import "C" + +import ( + "fmt" + "unsafe" +) + +// Digest represents and openssl message digest. +type Digest struct { + ptr *C.EVP_MD +} + +// GetDigestByName returns the Digest with the name or nil and an error if the +// digest was not found. +func GetDigestByName(name string) (*Digest, error) { + cname := C.CString(name) + defer C.free(unsafe.Pointer(cname)) + p := C.EVP_get_digestbyname(cname) + if p == nil { + return nil, fmt.Errorf("Digest %v not found", name) + } + // we can consider digests to use static mem; don't need to free + return &Digest{ptr: p}, nil +} + +// GetDigestByName returns the Digest with the NID or nil and an error if the +// digest was not found. +func GetDigestByNid(nid NID) (*Digest, error) { + sn, err := Nid2ShortName(nid) + if err != nil { + return nil, err + } + return GetDigestByName(sn) +} |