1# mkerrnos.awk 2# Copyright (C) 2003, 2004 g10 Code GmbH 3# 4# This program is free software; you can redistribute it and/or 5# modify it under the terms of the GNU General Public License as 6# published by the Free Software Foundation; either version 2 of 7# the License, or (at your option) any later version. 8# 9# This program is distributed in the hope that it will be useful, 10# but WITHOUT ANY WARRANTY; without even the implied warranty of 11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12# General Public License for more details. 13# 14# You should have received a copy of the GNU General Public License 15# along with this program; if not, write to the Free Software 16# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 17# 18# As a special exception, g10 Code GmbH gives unlimited permission to 19# copy, distribute and modify the C source files that are the output 20# of mkerrnos.awk. You need not follow the terms of the GNU General 21# Public License when using or distributing such scripts, even though 22# portions of the text of mkerrnos.awk appear in them. The GNU 23# General Public License (GPL) does govern all other use of the material 24# that constitutes the mkerrnos.awk program. 25# 26# Certain portions of the mkerrnos.awk source text are designed to be 27# copied (in certain cases, depending on the input) into the output of 28# mkerrnos.awk. We call these the "data" portions. The rest of the 29# mkerrnos.awk source text consists of comments plus executable code 30# that decides which of the data portions to output in any given case. 31# We call these comments and executable code the "non-data" portions. 32# mkerrnos.h never copies any of the non-data portions into its output. 33# 34# This special exception to the GPL applies to versions of mkerrnos.awk 35# released by g10 Code GmbH. When you make and distribute a modified version 36# of mkerrnos.awk, you may extend this special exception to the GPL to 37# apply to your modified version as well, *unless* your modified version 38# has the potential to copy into its output some of the text that was the 39# non-data portion of the version that you started with. (In other words, 40# unless your change moves or copies text from the non-data portions to the 41# data portions.) If your modification has such potential, you must delete 42# any notice of this special exception to the GPL from your modified version. 43 44# This script outputs a source file that does define the following 45# symbols: 46# 47# static const int err_code_to_errno[]; 48# A mapping of gpg_err_code_t numbers to system errno. The index of an 49# error code in the table can be obtained after removing the system error 50# code indication bit. 51# 52# The input file is a list of possible system errors in the column errnoidx 53# (defaults to 2). 54# 55# Comments (starting with # and ending at the end of the line) are removed, 56# as is trailing whitespace. 57 58BEGIN { 59 FS="[\t]+"; 60 header = 1; 61 if (errnoidx == 0) 62 errnoidx = 2; 63 64 print "/* Output of mkerrnos.awk. DO NOT EDIT. */"; 65 print ""; 66} 67 68/^#/ { next; } 69 70header { 71 if ($1 ~ /^[0-9]/) 72 { 73 print "#include <errno.h>"; 74 print "#ifdef _WIN32"; 75 print "#include <winsock2.h>"; 76 print "#endif"; 77 print ""; 78 print "static const int err_code_to_errno [] = {"; 79 header = 0; 80 } 81 else 82 print; 83} 84 85!header { 86 sub (/\#.+/, ""); 87 sub (/[ ]+$/, ""); # Strip trailing space and tab characters. 88 89 if (/^$/) 90 next; 91 92 print "#ifdef " $errnoidx; 93 print " " $errnoidx ","; 94 print "#else"; 95 print "#ifdef WSA" $errnoidx; 96 print " WSA" $errnoidx ","; 97 print "#else"; 98 print " 0,"; 99 print "#endif"; 100 print "#endif"; 101} 102END { 103 print "};"; 104} 105