diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2017-02-03 02:44:33 -0500 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2017-02-03 03:19:23 -0500 |
commit | 374311b891c587bbeb554057e04b55f69073d1af (patch) | |
tree | 9903718c323bfe42bba8e3a6a48d5629029b286e /go/src/nshd/util/util.go | |
parent | 56689b495618d3e8326b0a6c79f15aaf2b029d9c (diff) |
Less magic in the build system; don't hide the go workspace.
Diffstat (limited to 'go/src/nshd/util/util.go')
-rw-r--r-- | go/src/nshd/util/util.go | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/go/src/nshd/util/util.go b/go/src/nshd/util/util.go new file mode 100644 index 0000000..4d3fd57 --- /dev/null +++ b/go/src/nshd/util/util.go @@ -0,0 +1,47 @@ +// Copyright 2015-2016 Luke Shumaker <lukeshu@sbcglobal.net>. +// +// This is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation; either version 2 of +// the License, or (at your option) any later version. +// +// This software is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public +// License along with this manual; if not, see +// <http://www.gnu.org/licenses/>. + +package util + +import ( + "crypto/rand" + "math/big" +) + +func RandomString(alphabet string, n uint) (str string, err error) { + var alphabet_len = big.NewInt(int64(len(alphabet))) + var bigint *big.Int + _str := make([]byte, n) + for i := 0; i < len(_str); i++ { + bigint, err = rand.Int(rand.Reader, alphabet_len) + if err != nil { + return + } + _str[i] = alphabet[bigint.Int64()] + } + str = string(_str[:]) + return +} + +func Set2list(set map[string]bool) []string { + list := make([]string, len(set)) + i := uint(0) + for item, _ := range set { + list[i] = item + i++ + } + return list +} |