package/base-files: /lib/functions.sh: add {group,user}_{add,exists} functions

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28871 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
index 43ce60e..a89a3e9 100755 (executable)
--- a/package/base-files/files/lib/functions.sh
+++ b/package/base-files/files/lib/functions.sh
@@ -389,6 +389,43 @@ __END_OF_WARNING__
 }
 
 
+group_add() {
+       local name="$1"
+       local gid="$2"
+       local rc
+       [ -f "${IPKG_INSTROOT}/etc/group" ] || return 1
+       [ -n "$IPKG_INSTROOT" ] || lock /var/lock/group
+       echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group
+       rc=$?
+       [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group
+       return $rc
+}
+
+group_exists() {
+       grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group
+}
+
+user_add() {
+       local name="${1}"
+       local uid="${2}"
+       local gid="${3:-$2}"
+       local desc="${4:-$1}"
+       local home="${5:-/var/run/$1}"
+       local shell="${6:-/bin/false}"
+       local rc
+       [ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1
+       [ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
+       echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd
+       rc=$?
+       [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
+       return $rc
+}
+
+user_exists() {
+       grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd
+}
+
+
 pi_include() {
        if [ -f "/tmp/overlay/$1" ]; then
                . "/tmp/overlay/$1"