[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/timezone/tzselect.ksh b/ap/libc/glibc/glibc-2.23/timezone/tzselect.ksh
new file mode 100755
index 0000000..2c3b2f4
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/timezone/tzselect.ksh
@@ -0,0 +1,556 @@
+#!/bin/bash
+
+PKGVERSION='(tzcode) '
+TZVERSION=see_Makefile
+REPORT_BUGS_TO=tz@iana.org
+
+# Ask the user about the time zone, and output the resulting TZ value to stdout.
+# Interact with the user via stderr and stdin.
+
+# Contributed by Paul Eggert.
+
+# Porting notes:
+#
+# This script requires a Posix-like shell and prefers the extension of a
+# 'select' statement. The 'select' statement was introduced in the
+# Korn shell and is available in Bash and other shell implementations.
+# If your host lacks both Bash and the Korn shell, you can get their
+# source from one of these locations:
+#
+# Bash <http://www.gnu.org/software/bash/bash.html>
+# Korn Shell <http://www.kornshell.com/>
+# Public Domain Korn Shell <http://www.cs.mun.ca/~michael/pdksh/>
+#
+# For portability to Solaris 9 /bin/sh this script avoids some POSIX
+# features and common extensions, such as $(...) (which works sometimes
+# but not others), $((...)), and $10.
+#
+# This script also uses several features of modern awk programs.
+# If your host lacks awk, or has an old awk that does not conform to Posix,
+# you can use either of the following free programs instead:
+#
+# Gawk (GNU awk) <http://www.gnu.org/software/gawk/>
+# mawk <http://invisible-island.net/mawk/>
+
+
+# Specify default values for environment variables if they are unset.
+: ${AWK=awk}
+: ${TZDIR=`pwd`}
+
+# Output one argument as-is to standard output.
+# Safer than 'echo', which can mishandle '\' or leading '-'.
+say() {
+ printf '%s\n' "$1"
+}
+
+# Check for awk Posix compliance.
+($AWK -v x=y 'BEGIN { exit 123 }') </dev/null >/dev/null 2>&1
+[ $? = 123 ] || {
+ say >&2 "$0: Sorry, your '$AWK' program is not Posix compatible."
+ exit 1
+}
+
+coord=
+location_limit=10
+zonetabtype=zone1970
+
+usage="Usage: tzselect [--version] [--help] [-c COORD] [-n LIMIT]
+Select a time zone interactively.
+
+Options:
+
+ -c COORD
+ Instead of asking for continent and then country and then city,
+ ask for selection from time zones whose largest cities
+ are closest to the location with geographical coordinates COORD.
+ COORD should use ISO 6709 notation, for example, '-c +4852+00220'
+ for Paris (in degrees and minutes, North and East), or
+ '-c -35-058' for Buenos Aires (in degrees, South and West).
+
+ -n LIMIT
+ Display at most LIMIT locations when -c is used (default $location_limit).
+
+ --version
+ Output version information.
+
+ --help
+ Output this help.
+
+Report bugs to $REPORT_BUGS_TO."
+
+# Ask the user to select from the function's arguments,
+# and assign the selected argument to the variable 'select_result'.
+# Exit on EOF or I/O error. Use the shell's 'select' builtin if available,
+# falling back on a less-nice but portable substitute otherwise.
+if
+ case $BASH_VERSION in
+ ?*) : ;;
+ '')
+ # '; exit' should be redundant, but Dash doesn't properly fail without it.
+ (eval 'set --; select x; do break; done; exit') </dev/null 2>/dev/null
+ esac
+then
+ # Do this inside 'eval', as otherwise the shell might exit when parsing it
+ # even though it is never executed.
+ eval '
+ doselect() {
+ select select_result
+ do
+ case $select_result in
+ "") echo >&2 "Please enter a number in range." ;;
+ ?*) break
+ esac
+ done || exit
+ }
+
+ # Work around a bug in bash 1.14.7 and earlier, where $PS3 is sent to stdout.
+ case $BASH_VERSION in
+ [01].*)
+ case `echo 1 | (select x in x; do break; done) 2>/dev/null` in
+ ?*) PS3=
+ esac
+ esac
+ '
+else
+ doselect() {
+ # Field width of the prompt numbers.
+ select_width=`expr $# : '.*'`
+
+ select_i=
+
+ while :
+ do
+ case $select_i in
+ '')
+ select_i=0
+ for select_word
+ do
+ select_i=`expr $select_i + 1`
+ printf >&2 "%${select_width}d) %s\\n" $select_i "$select_word"
+ done ;;
+ *[!0-9]*)
+ echo >&2 'Please enter a number in range.' ;;
+ *)
+ if test 1 -le $select_i && test $select_i -le $#; then
+ shift `expr $select_i - 1`
+ select_result=$1
+ break
+ fi
+ echo >&2 'Please enter a number in range.'
+ esac
+
+ # Prompt and read input.
+ printf >&2 %s "${PS3-#? }"
+ read select_i || exit
+ done
+ }
+fi
+
+while getopts c:n:t:-: opt
+do
+ case $opt$OPTARG in
+ c*)
+ coord=$OPTARG ;;
+ n*)
+ location_limit=$OPTARG ;;
+ t*) # Undocumented option, used for developer testing.
+ zonetabtype=$OPTARG ;;
+ -help)
+ exec echo "$usage" ;;
+ -version)
+ exec echo "tzselect $PKGVERSION$TZVERSION" ;;
+ -*)
+ say >&2 "$0: -$opt$OPTARG: unknown option; try '$0 --help'"; exit 1 ;;
+ *)
+ say >&2 "$0: try '$0 --help'"; exit 1 ;;
+ esac
+done
+
+shift `expr $OPTIND - 1`
+case $# in
+0) ;;
+*) say >&2 "$0: $1: unknown argument"; exit 1 ;;
+esac
+
+# Make sure the tables are readable.
+TZ_COUNTRY_TABLE=$TZDIR/iso3166.tab
+TZ_ZONE_TABLE=$TZDIR/$zonetabtype.tab
+for f in $TZ_COUNTRY_TABLE $TZ_ZONE_TABLE
+do
+ <"$f" || {
+ say >&2 "$0: time zone files are not set up correctly"
+ exit 1
+ }
+done
+
+# If the current locale does not support UTF-8, convert data to current
+# locale's format if possible, as the shell aligns columns better that way.
+# Check the UTF-8 of U+12345 CUNEIFORM SIGN URU TIMES KI.
+! $AWK 'BEGIN { u12345 = "\360\222\215\205"; exit length(u12345) != 1 }' &&
+ { tmp=`(mktemp -d) 2>/dev/null` || {
+ tmp=${TMPDIR-/tmp}/tzselect.$$ &&
+ (umask 77 && mkdir -- "$tmp")
+ };} &&
+ trap 'status=$?; rm -fr -- "$tmp"; exit $status' 0 HUP INT PIPE TERM &&
+ (iconv -f UTF-8 -t //TRANSLIT <"$TZ_COUNTRY_TABLE" >$tmp/iso3166.tab) \
+ 2>/dev/null &&
+ TZ_COUNTRY_TABLE=$tmp/iso3166.tab &&
+ iconv -f UTF-8 -t //TRANSLIT <"$TZ_ZONE_TABLE" >$tmp/$zonetabtype.tab &&
+ TZ_ZONE_TABLE=$tmp/$zonetabtype.tab
+
+newline='
+'
+IFS=$newline
+
+
+# Awk script to read a time zone table and output the same table,
+# with each column preceded by its distance from 'here'.
+output_distances='
+ BEGIN {
+ FS = "\t"
+ while (getline <TZ_COUNTRY_TABLE)
+ if ($0 ~ /^[^#]/)
+ country[$1] = $2
+ country["US"] = "US" # Otherwise the strings get too long.
+ }
+ function abs(x) {
+ return x < 0 ? -x : x;
+ }
+ function min(x, y) {
+ return x < y ? x : y;
+ }
+ function convert_coord(coord, deg, minute, ilen, sign, sec) {
+ if (coord ~ /^[-+]?[0-9]?[0-9][0-9][0-9][0-9][0-9][0-9]([^0-9]|$)/) {
+ degminsec = coord
+ intdeg = degminsec < 0 ? -int(-degminsec / 10000) : int(degminsec / 10000)
+ minsec = degminsec - intdeg * 10000
+ intmin = minsec < 0 ? -int(-minsec / 100) : int(minsec / 100)
+ sec = minsec - intmin * 100
+ deg = (intdeg * 3600 + intmin * 60 + sec) / 3600
+ } else if (coord ~ /^[-+]?[0-9]?[0-9][0-9][0-9][0-9]([^0-9]|$)/) {
+ degmin = coord
+ intdeg = degmin < 0 ? -int(-degmin / 100) : int(degmin / 100)
+ minute = degmin - intdeg * 100
+ deg = (intdeg * 60 + minute) / 60
+ } else
+ deg = coord
+ return deg * 0.017453292519943296
+ }
+ function convert_latitude(coord) {
+ match(coord, /..*[-+]/)
+ return convert_coord(substr(coord, 1, RLENGTH - 1))
+ }
+ function convert_longitude(coord) {
+ match(coord, /..*[-+]/)
+ return convert_coord(substr(coord, RLENGTH))
+ }
+ # Great-circle distance between points with given latitude and longitude.
+ # Inputs and output are in radians. This uses the great-circle special
+ # case of the Vicenty formula for distances on ellipsoids.
+ function gcdist(lat1, long1, lat2, long2, dlong, x, y, num, denom) {
+ dlong = long2 - long1
+ x = cos(lat2) * sin(dlong)
+ y = cos(lat1) * sin(lat2) - sin(lat1) * cos(lat2) * cos(dlong)
+ num = sqrt(x * x + y * y)
+ denom = sin(lat1) * sin(lat2) + cos(lat1) * cos(lat2) * cos(dlong)
+ return atan2(num, denom)
+ }
+ # Parallel distance between points with given latitude and longitude.
+ # This is the product of the longitude difference and the cosine
+ # of the latitude of the point that is further from the equator.
+ # I.e., it considers longitudes to be further apart if they are
+ # nearer the equator.
+ function pardist(lat1, long1, lat2, long2) {
+ return abs(long1 - long2) * min(cos(lat1), cos(lat2))
+ }
+ # The distance function is the sum of the great-circle distance and
+ # the parallel distance. It could be weighted.
+ function dist(lat1, long1, lat2, long2) {
+ return gcdist(lat1, long1, lat2, long2) + pardist(lat1, long1, lat2, long2)
+ }
+ BEGIN {
+ coord_lat = convert_latitude(coord)
+ coord_long = convert_longitude(coord)
+ }
+ /^[^#]/ {
+ here_lat = convert_latitude($2)
+ here_long = convert_longitude($2)
+ line = $1 "\t" $2 "\t" $3
+ sep = "\t"
+ ncc = split($1, cc, /,/)
+ for (i = 1; i <= ncc; i++) {
+ line = line sep country[cc[i]]
+ sep = ", "
+ }
+ if (NF == 4)
+ line = line " - " $4
+ printf "%g\t%s\n", dist(coord_lat, coord_long, here_lat, here_long), line
+ }
+'
+
+# Begin the main loop. We come back here if the user wants to retry.
+while
+
+ echo >&2 'Please identify a location' \
+ 'so that time zone rules can be set correctly.'
+
+ continent=
+ country=
+ region=
+
+ case $coord in
+ ?*)
+ continent=coord;;
+ '')
+
+ # Ask the user for continent or ocean.
+
+ echo >&2 'Please select a continent, ocean, "coord", or "TZ".'
+
+ quoted_continents=`
+ $AWK '
+ BEGIN { FS = "\t" }
+ /^[^#]/ {
+ entry = substr($3, 1, index($3, "/") - 1)
+ if (entry == "America")
+ entry = entry "s"
+ if (entry ~ /^(Arctic|Atlantic|Indian|Pacific)$/)
+ entry = entry " Ocean"
+ printf "'\''%s'\''\n", entry
+ }
+ ' <"$TZ_ZONE_TABLE" |
+ sort -u |
+ tr '\n' ' '
+ echo ''
+ `
+
+ eval '
+ doselect '"$quoted_continents"' \
+ "coord - I want to use geographical coordinates." \
+ "TZ - I want to specify the time zone using the Posix TZ format."
+ continent=$select_result
+ case $continent in
+ Americas) continent=America;;
+ *" "*) continent=`expr "$continent" : '\''\([^ ]*\)'\''`
+ esac
+ '
+ esac
+
+ case $continent in
+ TZ)
+ # Ask the user for a Posix TZ string. Check that it conforms.
+ while
+ echo >&2 'Please enter the desired value' \
+ 'of the TZ environment variable.'
+ echo >&2 'For example, GST-10 is a zone named GST' \
+ 'that is 10 hours ahead (east) of UTC.'
+ read TZ
+ $AWK -v TZ="$TZ" 'BEGIN {
+ tzname = "[^-+,0-9][^-+,0-9][^-+,0-9]+"
+ time = "[0-2]?[0-9](:[0-5][0-9](:[0-5][0-9])?)?"
+ offset = "[-+]?" time
+ date = "(J?[0-9]+|M[0-9]+\\.[0-9]+\\.[0-9]+)"
+ datetime = "," date "(/" time ")?"
+ tzpattern = "^(:.*|" tzname offset "(" tzname \
+ "(" offset ")?(" datetime datetime ")?)?)$"
+ if (TZ ~ tzpattern) exit 1
+ exit 0
+ }'
+ do
+ say >&2 "'$TZ' is not a conforming Posix time zone string."
+ done
+ TZ_for_date=$TZ;;
+ *)
+ case $continent in
+ coord)
+ case $coord in
+ '')
+ echo >&2 'Please enter coordinates' \
+ 'in ISO 6709 notation.'
+ echo >&2 'For example, +4042-07403 stands for'
+ echo >&2 '40 degrees 42 minutes north,' \
+ '74 degrees 3 minutes west.'
+ read coord;;
+ esac
+ distance_table=`$AWK \
+ -v coord="$coord" \
+ -v TZ_COUNTRY_TABLE="$TZ_COUNTRY_TABLE" \
+ "$output_distances" <"$TZ_ZONE_TABLE" |
+ sort -n |
+ sed "${location_limit}q"
+ `
+ regions=`say "$distance_table" | $AWK '
+ BEGIN { FS = "\t" }
+ { print $NF }
+ '`
+ echo >&2 'Please select one of the following' \
+ 'time zone regions,'
+ echo >&2 'listed roughly in increasing order' \
+ "of distance from $coord".
+ doselect $regions
+ region=$select_result
+ TZ=`say "$distance_table" | $AWK -v region="$region" '
+ BEGIN { FS="\t" }
+ $NF == region { print $4 }
+ '`
+ ;;
+ *)
+ # Get list of names of countries in the continent or ocean.
+ countries=`$AWK \
+ -v continent="$continent" \
+ -v TZ_COUNTRY_TABLE="$TZ_COUNTRY_TABLE" \
+ '
+ BEGIN { FS = "\t" }
+ /^#/ { next }
+ $3 ~ ("^" continent "/") {
+ ncc = split($1, cc, /,/)
+ for (i = 1; i <= ncc; i++)
+ if (!cc_seen[cc[i]]++) cc_list[++ccs] = cc[i]
+ }
+ END {
+ while (getline <TZ_COUNTRY_TABLE) {
+ if ($0 !~ /^#/) cc_name[$1] = $2
+ }
+ for (i = 1; i <= ccs; i++) {
+ country = cc_list[i]
+ if (cc_name[country]) {
+ country = cc_name[country]
+ }
+ print country
+ }
+ }
+ ' <"$TZ_ZONE_TABLE" | sort -f`
+
+
+ # If there's more than one country, ask the user which one.
+ case $countries in
+ *"$newline"*)
+ echo >&2 'Please select a country' \
+ 'whose clocks agree with yours.'
+ doselect $countries
+ country=$select_result;;
+ *)
+ country=$countries
+ esac
+
+
+ # Get list of names of time zone rule regions in the country.
+ regions=`$AWK \
+ -v country="$country" \
+ -v TZ_COUNTRY_TABLE="$TZ_COUNTRY_TABLE" \
+ '
+ BEGIN {
+ FS = "\t"
+ cc = country
+ while (getline <TZ_COUNTRY_TABLE) {
+ if ($0 !~ /^#/ && country == $2) {
+ cc = $1
+ break
+ }
+ }
+ }
+ /^#/ { next }
+ $1 ~ cc { print $4 }
+ ' <"$TZ_ZONE_TABLE"`
+
+
+ # If there's more than one region, ask the user which one.
+ case $regions in
+ *"$newline"*)
+ echo >&2 'Please select one of the following' \
+ 'time zone regions.'
+ doselect $regions
+ region=$select_result;;
+ *)
+ region=$regions
+ esac
+
+ # Determine TZ from country and region.
+ TZ=`$AWK \
+ -v country="$country" \
+ -v region="$region" \
+ -v TZ_COUNTRY_TABLE="$TZ_COUNTRY_TABLE" \
+ '
+ BEGIN {
+ FS = "\t"
+ cc = country
+ while (getline <TZ_COUNTRY_TABLE) {
+ if ($0 !~ /^#/ && country == $2) {
+ cc = $1
+ break
+ }
+ }
+ }
+ /^#/ { next }
+ $1 ~ cc && $4 == region { print $3 }
+ ' <"$TZ_ZONE_TABLE"`
+ esac
+
+ # Make sure the corresponding zoneinfo file exists.
+ TZ_for_date=$TZDIR/$TZ
+ <"$TZ_for_date" || {
+ say >&2 "$0: time zone files are not set up correctly"
+ exit 1
+ }
+ esac
+
+
+ # Use the proposed TZ to output the current date relative to UTC.
+ # Loop until they agree in seconds.
+ # Give up after 8 unsuccessful tries.
+
+ extra_info=
+ for i in 1 2 3 4 5 6 7 8
+ do
+ TZdate=`LANG=C TZ="$TZ_for_date" date`
+ UTdate=`LANG=C TZ=UTC0 date`
+ TZsec=`expr "$TZdate" : '.*:\([0-5][0-9]\)'`
+ UTsec=`expr "$UTdate" : '.*:\([0-5][0-9]\)'`
+ case $TZsec in
+ $UTsec)
+ extra_info="
+Local time is now: $TZdate.
+Universal Time is now: $UTdate."
+ break
+ esac
+ done
+
+
+ # Output TZ info and ask the user to confirm.
+
+ echo >&2 ""
+ echo >&2 "The following information has been given:"
+ echo >&2 ""
+ case $country%$region%$coord in
+ ?*%?*%) say >&2 " $country$newline $region";;
+ ?*%%) say >&2 " $country";;
+ %?*%?*) say >&2 " coord $coord$newline $region";;
+ %%?*) say >&2 " coord $coord";;
+ *) say >&2 " TZ='$TZ'"
+ esac
+ say >&2 ""
+ say >&2 "Therefore TZ='$TZ' will be used.$extra_info"
+ say >&2 "Is the above information OK?"
+
+ doselect Yes No
+ ok=$select_result
+ case $ok in
+ Yes) break
+ esac
+do coord=
+done
+
+case $SHELL in
+*csh) file=.login line="setenv TZ '$TZ'";;
+*) file=.profile line="TZ='$TZ'; export TZ"
+esac
+
+say >&2 "
+You can make this change permanent for yourself by appending the line
+ $line
+to the file '$file' in your home directory; then log out and log in again.
+
+Here is that TZ value again, this time on standard output so that you
+can use the $0 command in shell scripts:"
+
+say "$TZ"