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clean up err, support E* style errs

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This commit is contained in:
David Majnemer 2010-07-01 13:06:44 -07:00
parent 635b742aee
commit ea78f108d8
1 changed files with 46 additions and 7 deletions
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53
commonsh/10_utility
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@ -10,16 +10,55 @@ unkey_host ()
err ()
{
if ( command -v ruby > /dev/null 2>&1 ); then
ruby -e "puts Errno.constants.find_all{|err| eval('Errno::' + err + '::Errno') == $@ }"
elif [ -e /usr/include/errno.h ] ; then
cpp -dM /usr/include/errno.h | grep -w "E.* $@"
fi
case $@ in
E*)
unset errno
if [ "${errno}" = "" ] && ( command -v python > /dev/null 2>&1 ); then
errno=`python -c "import errno;print(errno.$@)" 2>/dev/null`
fi
if [ "${errno}" = "" ] && ( command -v ruby > /dev/null 2>&1 ); then
errno=`ruby -e "puts Errno::$@::Errno if (Errno::$@)" 2>/dev/null`
fi
if [ "${errno}" = "" ] && [ -e /usr/include/errno.h ] ; then
errno=`cpp -dM /usr/include/errno.h | grep -w "$@" | grep -oE '[0-9]+' 2>/dev/null`
fi
if [ "${errno}" ] ; then
errstr="$@ = $errno"
fi
if [ "${errstr}" ] ; then
echo $errstr
else
return 1
fi
;;
*)
unset errconst
if [ "${errconst}" = "" ] && ( command -v python > /dev/null 2>&1 ); then
errconst=`python -c "import errno;print(errno.errorcode[$@])" 2>/dev/null`
fi
if [ "${errconst}" = "" ] && ( command -v ruby > /dev/null 2>&1 ); then
errconst=`ruby -e "puts Errno.constants.find_all{|err| eval('Errno::' + err + '::Errno') == $@ }"`
fi
if [ "${errconst}" = "" ] && [ -e /usr/include/errno.h ] ; then
errconst=`cpp -dM /usr/include/errno.h | grep -w "E.* $@"`
fi
if [ "${errconst}" ] ; then
echo $errconst
else
return 1
fi
errno=$@
;;
esac
if ( command -v perl > /dev/null 2>&1 ) ; then
perl -MPOSIX -e 'print strerror($ARGV[0])."\n";' $@
perl -MPOSIX -e 'print strerror($ARGV[0])."\n";' $errno
elif ( command -v python > /dev/null 2>&1 ) ; then
python -c "import os;print(os.strerror($@))"
python -c "import os;print(os.strerror($errno))"
fi
}