/usr/share/uim/socket.scm is in libuim-data 1:1.7.1-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | ;;; socket.scm: socket library for uim.
;;;
;;; Copyright (c) 2009-2011 uim Project http://code.google.com/p/uim/
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; 2. Redistributions in binary form must reproduce the above copyright
;;; notice, this list of conditions and the following disclaimer in the
;;; documentation and/or other materials provided with the distribution.
;;; 3. Neither the name of authors nor the names of its contributors
;;; may be used to endorse or promote products derived from this software
;;; without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
;;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
;;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
;;; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
;;; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
;;; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
;;; SUCH DAMAGE.
;;;;
(require-extension (srfi 1 2 9))
(use util)
(require "fileio.scm")
(require-dynlib "socket")
(define addrinfo-ai-flags-alist (addrinfo-ai-flags-alist?))
(define addrinfo-ai-family-alist (addrinfo-ai-family-alist?))
(define addrinfo-ai-socktype-alist (addrinfo-ai-socktype-alist?))
(define addrinfo-ai-protocol-alist (addrinfo-ai-protocol-alist?))
(define (addrinfo-ai-flags-number l)
(apply logior
(map (lambda (s)
(assq-cdr s addrinfo-ai-flags-alist))
l)))
(define (addrinfo-ai-family-number s)
(assq-cdr s addrinfo-ai-family-alist))
(define (addrinfo-ai-socktype-number s)
(assq-cdr s addrinfo-ai-socktype-alist))
(define (addrinfo-ai-protocol-number s)
(assq-cdr s addrinfo-ai-protocol-alist))
(define (call-with-getaddrinfo-hints flags family socktype protocol thunk)
(let* ((hints (make-addrinfo)))
(and flags (addrinfo-set-ai-flags! hints (addrinfo-ai-flags-number flags)))
(and family (addrinfo-set-ai-family! hints (addrinfo-ai-family-number family)))
(and socktype (addrinfo-set-ai-socktype! hints (addrinfo-ai-socktype-number socktype)))
(and protocol (addrinfo-set-ai-protocol! hints (addrinfo-ai-protocol-number protocol)))
(let ((ret (thunk hints)))
(delete-addrinfo hints)
ret)))
(define (call-with-getaddrinfo hostname servname hints thunk)
(let* ((res (getaddrinfo hostname servname hints))
(ret (if res (thunk res) '())))
(if res
(freeaddrinfo (car res)))
ret))
(define (call-with-sockaddr-un family path thunk)
(let* ((sun (make-sockaddr-un)))
(sockaddr-set-un-sun-family! sun family)
(sockaddr-set-un-sun-path! sun path)
(let ((ret (thunk sun)))
(delete-sockaddr-un sun)
ret)))
(define (call-with-sockaddr-storage thunk)
(let* ((ss (make-sockaddr-storage))
(ret (thunk ss)))
(delete-sockaddr-storage ss)
ret))
(define shutdown-how-alist (shutdown-how-alist?))
(define (tcp-connect hostname servname)
(call-with-getaddrinfo-hints
'($AI_PASSIVE) '$PF_UNSPEC '$SOCK_STREAM #f
(lambda (hints)
(call-with-getaddrinfo
hostname servname hints
(lambda (res)
(call/cc
(lambda (fd)
(not (map (lambda (res0)
(let ((s (socket (addrinfo-ai-family? res0)
(addrinfo-ai-socktype? res0)
(addrinfo-ai-protocol? res0))))
(if (< s 0)
#f
(if (< (connect s
(addrinfo-ai-addr? res0)
(addrinfo-ai-addrlen? res0))
0)
(begin
(file-close s)
#f)
(fd s)))))
res)))))))))
(define (unix-domain-socket-connect socket-path)
(let ((s (socket (addrinfo-ai-family-number '$PF_LOCAL)
(addrinfo-ai-socktype-number '$SOCK_STREAM)
0)))
(if (< s 0)
#f
(call-with-sockaddr-un
(addrinfo-ai-family-number '$PF_LOCAL)
socket-path
(lambda (sun)
(if (< (connect s sun (sun-len sun))
0)
(begin
(file-close s)
#f)
s))))))
(define *tcp-listen:backlog-length* 5)
(define (tcp-listen hostname servname)
(filter
integer?
(call-with-getaddrinfo-hints
'($AI_PASSIVE) '$PF_UNSPEC '$SOCK_STREAM #f
(lambda (hints)
(call-with-getaddrinfo
hostname servname hints
(lambda (res)
(map (lambda (res0)
(let ((s (socket (addrinfo-ai-family? res0)
(addrinfo-ai-socktype? res0)
(addrinfo-ai-protocol? res0))))
(if (< s 0)
#f
(if (< (bind s
(addrinfo-ai-addr? res0)
(addrinfo-ai-addrlen? res0))
0)
(begin
(file-close s)
#f)
(begin
(listen s *tcp-listen:backlog-length*)
s)))))
res)))))))
(define (tcp-accept sockets)
(let ((fds (file-ready? sockets -1)))
(map (lambda (pfd)
(call-with-sockaddr-storage
(lambda (ss)
(accept (car pfd) ss))))
fds)))
(define (make-tcp-server thunk)
(lambda (sockets)
(let loop ()
(let ((fds (file-ready? sockets -1)))
(for-each (lambda (pfd)
(call-with-sockaddr-storage
(lambda (ss)
(let ((socket (accept (car pfd) ss)))
(thunk socket)))))
fds)
(loop)))))
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