base-files: fix zoneinfo support

The system init script currently sets /tmp/localinfo when zoneinfo is
populated. However, zoneinfo has spaces in it whereas the actual files
have _ instead of spaces. This made the if condition never return true.

Example failure when removing the if condition:

/tmp/localtime -> /usr/share/zoneinfo/America/Los Angeles

This file does not exist. America/Los_Angeles does.

Ran through shfmt -w -ci -bn -sr -s

Signed-off-by: Rosen Penev <rosenp@gmail.com>
(cherry picked from commit 8af62ede189aa504135db05474d34c9f8a1ed35d)

diff --git a/package/base-files/files/etc/init.d/system b/package/base-files/files/etc/init.d/system
index 08cf86b97f986d7cd99b5f2f7dc88b8b8b4aaf97..2290964d7eff6bb501d3f2b5481cb62c5b605d2f 100755 (executable)
--- a/package/base-files/files/etc/init.d/system
+++ b/package/base-files/files/etc/init.d/system
@@ -4,8 +4,7 @@
 START=10
 USE_PROCD=1
 
-validate_system_section()
-{
+validate_system_section() {
        uci_load_validate system system "$1" "$2" \
                'hostname:string:OpenWrt' \
                'conloglevel:uinteger' \
@@ -22,9 +21,13 @@ system_config() {
 
        echo "$hostname" > /proc/sys/kernel/hostname
        [ -z "$conloglevel" -a -z "$buffersize" ] || dmesg ${conloglevel:+-n $conloglevel} ${buffersize:+-s $buffersize}
-       echo "$timezone" > /tmp/TZ
-       [ -n "$zonename" ] && [ -f "/usr/share/zoneinfo/$zonename" ] && \
-               ln -sf "/usr/share/zoneinfo/$zonename" /tmp/localtime && rm -f /tmp/TZ
+       rm -f /tmp/TZ
+       if [ -n "$zonename" ]; then
+               local zname=$(echo "$zonename" | tr ' ' _)
+               [ -f "/usr/share/zoneinfo/$zname" ] && ln -sf "/usr/share/zoneinfo/$zname" /tmp/localtime
+       else
+               echo "$timezone" > /tmp/TZ
+       fi
 
        # apply timezone to kernel
        hwclock -u --systz
@@ -35,8 +38,7 @@ reload_service() {
        config_foreach validate_system_section system system_config
 }
 
-service_triggers()
-{
+service_triggers() {
        procd_add_reload_trigger "system"
        procd_add_validation validate_system_section
 }