[PATCH] Minor POSIX-fixes for udev

The attached patch contains a few patches against udev, to remove
use of various XSI:isms and bash:isms, and to change two scripts form
/bin/bash to /bin/sh.  None of the bash-scripts in test/ uses any
bash-specific functions as far as I know, but I didn't touch them since
they aren't used runtime.

Rationale:
* Both of the /bin/bash-scripts are totally free from bashisms, hence they
  don't need to be /bin/bash; using /bin/sh instead helps (mainly)
  embedded-people

* local and source are bash:isms (well, they exist in several other
  shells as well, but they aren't part of POSIX or any of its extensions)

* -a in tests is an XSI-extension, not part of strict POSIX, and is
  easily replaced by &&
  | http://www.opengroup.org/onlinepubs/009695399/utilities/test.html

* Use of fgrep is deprecated in POSIX in favour of grep -F (though fgrep
  will remain in use for a long time...)
  | http://www.opengroup.org/onlinepubs/009695399/utilities/grep.html

The fgrep-change isn't really necessary, since fgrep can always be
implemented as a shell-script, but the rest of the changes would really
be appreciated.

etc/dev.d/default/pam_console.dev

@@ -11,7 +11,7 @@ fi
 [ "$UDEV_CONSOLE" != "yes" ] && exit 0
 
 if [ -x /sbin/pam_console_setowner ]; then
-	if [ "$UDEV_LOG" = "yes" -a -x /usr/bin/logger ]; then 
+	if [ "$UDEV_LOG" = "yes" ] && [ -x /usr/bin/logger ]; then 
 		/usr/bin/logger -p auth.debug "Restoring console permissions for $DEVNAME"
 	fi
 	exec /sbin/pam_console_setowner $DEVNAME

etc/dev.d/default/selinux.dev

@@ -11,7 +11,7 @@ fi
 [ "$UDEV_SELINUX" != "yes" ] && exit 0
 
 if [ -x /sbin/restorecon ]; then
-	if [ "$UDEV_LOG" = "yes" -a -x /usr/bin/logger ]; then
+	if [ "$UDEV_LOG" = "yes" ] && [ -x /usr/bin/logger ]; then
 		/usr/bin/logger -p auth.debug "Restoring file security contexts for $DEVNAME"
 	fi
 	/sbin/restorecon $DEVNAME

etc/init.d/udev

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /bin/sh
 #
 # udev	init script to setup /udev
 #

etc/init.d/udev.debian

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /bin/sh
 #
 # random	init script to setup /udev
 #

etc/init.d/udev.init.lfs

@@ -5,9 +5,9 @@
 #  2003, 2004 by Michael Buesch <mbuesch@freenet.de>
 #
 
-source /etc/sysconfig/rc
-source $rc_functions
-source /etc/udev/udev.conf
+. /etc/sysconfig/rc
+. $rc_functions
+. /etc/udev/udev.conf
 
 sysfs_dir="/sys"
 bin="/sbin/udev"

extras/ide-devfs.sh

@@ -15,15 +15,13 @@ else
 fi
 
 get_dev_number() {
-	local x=
-	local num=0
-	local MEDIA=
-	local DRIVE="${1%%[0-9]*}"
+	num=0
+	DRIVE="${1%%[0-9]*}"
 
 	for x in /proc/ide/*/media; do
 		if [ -e "${x}" ]; then
-			MEDIA=`cat ${x}`
-			if [ "${MEDIA}" = "$2" ]; then
+			lMEDIA=`cat ${x}`
+			if [ "${lMEDIA}" = "$2" ]; then
 				num=$((${num} + 1))
 			fi
 			if [ "${x}" = "/proc/ide/${DRIVE}/media" ]; then
@@ -35,7 +33,7 @@ get_dev_number() {
 	echo $((${num} - 1))
 }
 
-if [ -z "$3" -a -f /proc/ide/${1}/media ]; then
+if [ -z "$3" ] && [ -f /proc/ide/${1}/media ]; then
 	MEDIA=`cat /proc/ide/${1}/media`
 	if [ "${MEDIA}" = "cdrom" ]; then
 		echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/cd cdroms/cdrom`get_dev_number $1 cdrom`

extras/scsi-devfs.sh

@@ -14,7 +14,7 @@
 # BUS="scsi", KERNEL="sg*", PROGRAM="/etc/udev/scsi-devfs.sh sg %b %n", NAME="%c{1}", SYMLINK="%c{2} %k %c{3} %c{4}"
 
 # Find out where sysfs is mounted. Exit if not available
-sysfs=`fgrep sysfs /proc/mounts | awk '{print $2}'`
+sysfs=`grep -F sysfs /proc/mounts | awk '{print $2}'`
 if [ "$sysfs" = "" ]; then
     echo "sysfs is required"
     exit 1
@@ -63,7 +63,7 @@ s_com="b${scsi_bus}t${scsi_target}u${scsi_lun}$spart"
 l_log="scsi/host$scsi_host/$l_com"
 s_log="$1/c${scsi_host}${s_com}"
 
-readlink $2 | fgrep -q pci
+readlink $2 | grep -F -q pci
 if [ "$?" != "0" ]; then
     # Not a PCI controller, show logical locations only
     echo $l_log $s_log

extras/start_udev

@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /bin/sh
 #
 # start_udev
 #