mirror of https://github.com/ethereum/go-ethereum
rpc: avoid use of cgo by hard-coding maxPathSize (#27447)
Package rpc uses cgo to find the maximum UNIX domain socket path length. If exceeded, a warning is printed. This is the only use of cgo in this package. It seems excessive to depend on cgo just for this warning, so we now hard-code the usual limit for Linux instead. --------- Co-authored-by: Felix Lange <fjl@twurst.com>pull/27515/head
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// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build darwin || dragonfly || freebsd || linux || nacl || netbsd || openbsd || solaris
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// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
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package rpc |
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/* |
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#include <sys/un.h> |
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int max_socket_path_size() { |
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struct sockaddr_un s; |
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return sizeof(s.sun_path); |
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} |
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*/ |
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import "C" |
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var ( |
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max_path_size = C.max_socket_path_size() |
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) |
@ -1,26 +0,0 @@ |
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// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//go:build !cgo && !windows
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// +build !cgo,!windows
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package rpc |
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var ( |
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// On Linux, sun_path is 108 bytes in size
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// see http://man7.org/linux/man-pages/man7/unix.7.html
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max_path_size = 108 |
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) |
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