| 1 | #!/bin/ksh |
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| 2 | # IBM_PROLOG_BEGIN_TAG |
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| 3 | # This is an automatically generated prolog. |
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| 4 | # |
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| 5 | # |
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| 6 | # |
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| 7 | # Licensed Materials - Property of IBM |
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| 8 | # |
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| 9 | # (C) COPYRIGHT International Business Machines Corp. 2000,2006 |
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| 10 | # All Rights Reserved |
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| 11 | # |
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| 12 | # US Government Users Restricted Rights - Use, duplication or |
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| 13 | # disclosure restricted by GSA ADP Schedule Contract with IBM Corp. |
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| 14 | # |
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| 15 | # IBM_PROLOG_END_TAG |
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| 16 | # @(#)14 1.44.1.1 src/avs/fs/mmfs/ts/admin/mmglobfuncs.Linux.sh, mmfs, avs_rgpfs24, rgpfs24s007a 9/20/06 11:22:24 |
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| 17 | ############################################################# |
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| 18 | # |
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| 19 | # This file contains declarations and functions that are |
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| 20 | # unique to the Linux operating system environment. |
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| 21 | # |
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| 22 | ############################################################# |
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| 23 | |
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| 24 | sourceFile="mmglobfuncs.Linux.sh" |
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| 25 | [[ -n $DEBUGmmglobfuncsLinux ]] && set -x |
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| 26 | |
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| 27 | #----------------------------------------------------------- |
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| 28 | # Constants and global variables for internal mm command use. |
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| 29 | #----------------------------------------------------------- |
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| 30 | fsDeviceType='b' |
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| 31 | defaultMajorNumber=239 |
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| 32 | minMinorNumber=100 |
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| 33 | maxMinorNumber=255 |
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| 34 | currentMajorNumber=$defaultMajorNumber |
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| 35 | neededMajorNumber=$defaultMajorNumber |
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| 36 | |
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| 37 | # Find out if this is 2.4 or earlier version. |
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| 38 | [[ $(/bin/uname -r) = 2.[0-4].* ]] && version24=yes || version24="" |
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| 39 | |
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| 40 | |
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| 41 | #----------------------------------------------------------- |
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| 42 | # Return codes and constants for internal mm command use. |
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| 43 | #----------------------------------------------------------- |
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| 44 | MM_Remotefs2=66 # remote file system (EREMOTE) |
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| 45 | MM_UnknownCluster2=101 # unknown cluster (ENETUNREACH) |
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| 46 | MM_ConnAborted=103 # connection aborted (ECONNABORTED) |
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| 47 | MM_ConnectionReset2=104 # connection reset (ECONNRESET) |
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| 48 | MM_TimedOut2=110 # connection timed out (ETIMEDOUT) |
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| 49 | MM_HostDown2=112 # host is down (EHOSTDOWN) |
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| 50 | MM_DaemonDown2=127 # daemon not running (second value) |
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| 51 | |
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| 52 | |
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| 53 | #----------------------------------------------------------- |
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| 54 | # Full path names for Linux system commands |
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| 55 | #----------------------------------------------------------- |
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| 56 | automount=/usr/sbin/automount |
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| 57 | awk=/bin/awk |
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| 58 | cat=/bin/cat |
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| 59 | chmod=/bin/chmod |
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| 60 | chown=/bin/chown |
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| 61 | cp=/bin/cp |
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| 62 | cut=cut # /bin/cut or /usr/bin/cut depending on the RH release |
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| 63 | date=/bin/date |
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| 64 | dd=/bin/dd |
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| 65 | df=/bin/df |
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| 66 | diff=/usr/bin/diff |
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| 67 | egrep=/bin/egrep |
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| 68 | find=/usr/bin/find |
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| 69 | fgrep=/bin/fgrep |
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| 70 | grep=/bin/grep |
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| 71 | head=/usr/bin/head |
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| 72 | # host=/usr/bin/host |
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| 73 | host="host_aixformat" # internal function to convert the host output |
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| 74 | hostname=/bin/hostname |
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| 75 | id=/usr/bin/id |
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| 76 | ifconfig=/sbin/ifconfig |
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| 77 | insmod=/sbin/insmod |
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| 78 | join=/usr/bin/join |
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| 79 | kill=/bin/kill |
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| 80 | locale=/usr/bin/locale |
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| 81 | ln=/bin/ln |
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| 82 | ls=/bin/ls |
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| 83 | lsmod=/sbin/lsmod |
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| 84 | lssrc=/usr/bin/lssrc |
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| 85 | mkdir=/bin/mkdir |
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| 86 | mknod=/bin/mknod |
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| 87 | mount=/bin/mount |
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| 88 | mv=/bin/mv |
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| 89 | nm=/usr/bin/nm |
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| 90 | openssl=/usr/bin/openssl |
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| 91 | perl=/usr/bin/perl |
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| 92 | ping=/bin/ping |
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| 93 | ps=/bin/ps |
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| 94 | rcp=/usr/bin/rcp |
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| 95 | rm=/bin/rm |
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| 96 | rmdir=/bin/rmdir |
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| 97 | rmmod=/sbin/rmmod |
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| 98 | rpm=/bin/rpm |
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| 99 | rsh=/usr/bin/rsh |
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| 100 | sed=/bin/sed |
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| 101 | sleep=/bin/sleep |
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| 102 | sort=/bin/sort |
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| 103 | srcmstr=/sbin/srcmstr |
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| 104 | startsrc=/usr/bin/startsrc |
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| 105 | stopsrc=/usr/bin/stopsrc |
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| 106 | sum=/usr/bin/sum |
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| 107 | sync=/bin/sync |
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| 108 | tail=/usr/bin/tail |
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| 109 | tee=/usr/bin/tee |
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| 110 | touch=/bin/touch |
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| 111 | tr=/usr/bin/tr |
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| 112 | umount=/bin/umount |
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| 113 | uname=/bin/uname |
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| 114 | unmount=/bin/umount # synonym for umount |
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| 115 | wc=/usr/bin/wc |
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| 116 | |
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| 117 | |
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| 118 | #----------------------------------------------------------- |
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| 119 | # Well-known file names |
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| 120 | #----------------------------------------------------------- |
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| 121 | etcFilesystems="/etc/fstab" # Filesystem stanzas used by the mount command |
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| 122 | etcHosts="/etc/hosts" # Local host name resolution file |
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| 123 | etcHostConf="/etc/host.conf" # Resolver configuration file |
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| 124 | auto_master="/etc/auto_master" # master input for the automount daemon |
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| 125 | autoMaster="/etc/auto.master" # master input for the automount daemon |
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| 126 | |
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| 127 | |
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| 128 | #------------------------------- |
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| 129 | # Commands with common options |
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| 130 | #------------------------------- |
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| 131 | |
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| 132 | # Command to extract a specific field from a line. |
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| 133 | # Example: print -- $line | $GETVALUE $NODE_NAME_Field |
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| 134 | GETVALUE="$cut -d: -f " |
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| 135 | |
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| 136 | # Command to sort the mmsdrfs file prior to storing it. |
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| 137 | # Example: LC_ALL=C $SORT_MMSDRFS $sdrfs -o $sdrfs |
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| 138 | # The sorting is based on the following keys: |
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| 139 | # - the primary key is the nodeset id |
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| 140 | # - the secondary key is the stripe group id |
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| 141 | # - the next key is the line type |
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| 142 | # - the last key is the line number |
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| 143 | # The sorting is based on the ASCII collating sequence, |
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| 144 | # except for the fourth field, which is sorted in |
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| 145 | # arithmetic order. |
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| 146 | SORT_MMSDRFS="$sort -t: -k 1,1 -k 3,3 -k 2,2 -k 4,4n " |
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| 147 | |
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| 148 | |
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| 149 | #------------------------------- |
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| 150 | # Frequently used functions |
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| 151 | #------------------------------- |
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| 152 | |
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| 153 | |
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| 154 | #################################################################### |
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| 155 | # |
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| 156 | # Function: In the Linux environment, function host_aixformat |
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| 157 | # looks up a name using both /etc/hosts and the Linux |
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| 158 | # host command. This function determines the order |
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| 159 | # in which the name is resolved. |
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| 160 | # |
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| 161 | # Input: None. |
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| 162 | # |
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| 163 | # Output: "hosts" - check first the /etc/hosts file. |
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| 164 | # "bind" - start with the host command. |
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| 165 | # |
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| 166 | # Returns: Always zero. |
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| 167 | # |
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| 168 | #################################################################### |
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| 169 | function setHostResolveOrder |
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| 170 | { |
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| 171 | typeset sourceFile="mmglobfuncs.Linux.sh" |
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| 172 | [[ -n $DEBUG || -n $DEBUGsetHostResolveOrder ]] && set -x |
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| 173 | $mmTRACE_ENTER "$*" |
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| 174 | typeset order |
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| 175 | |
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| 176 | # Find out the host lookup order. Our rules are: |
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| 177 | # If 'hosts' is specified first on the order line in /etc/host.conf, |
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| 178 | # search for the name in /etc/hosts before issuing the host command. |
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| 179 | # Otherwise, start with the host command. |
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| 180 | if [[ -f $etcHostConf ]] |
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| 181 | then |
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| 182 | order=$($awk ' \ |
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| 183 | BEGIN { order = "bind" } \ |
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| 184 | $1 == "order" && $2 ~ /^hosts/ { order = "hosts" } \ |
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| 185 | END { print order } \ |
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| 186 | ' $etcHostConf 2>/dev/null) |
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| 187 | else |
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| 188 | order=bind |
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| 189 | fi |
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| 190 | |
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| 191 | print $order |
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| 192 | return 0 |
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| 193 | |
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| 194 | } #-------------- end of function setHostResolveOrder ------------------ |
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| 195 | |
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| 196 | |
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| 197 | #################################################################### |
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| 198 | # |
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| 199 | # Function: Issues the Linux host command and converts the output |
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| 200 | # to make it look as if it came from an AIX host command. |
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| 201 | # If the host command does not resolve the name, try |
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| 202 | # looking up the name in the local /etc/hosts file. |
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| 203 | # |
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| 204 | # Input: $1 - hostname or IP address |
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| 205 | # |
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| 206 | # Output: A line similar to the following: |
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| 207 | # esj.austin.ibm.com is 9.53.145.122 |
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| 208 | # |
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| 209 | # Returns: 0 - hostname resolved |
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| 210 | # non-zero - name not resolved |
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| 211 | # |
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| 212 | #################################################################### |
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| 213 | function host_aixformat # <hostname|ipa> |
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| 214 | { |
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| 215 | typeset sourceFile="mmglobfuncs.Linux.sh" |
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| 216 | [[ -n $DEBUG || -n $DEBUGhost_aixformat ]] && set -x |
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| 217 | $mmTRACE_ENTER "$*" |
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| 218 | typeset inValue=$1 |
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| 219 | |
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| 220 | typeset nameResolved=no |
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| 221 | typeset etcHostsChecked=no |
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| 222 | typeset hostOutput=${tmpDir}hostOutput.${mmcmd}.$$ |
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| 223 | typeset hostErrMsg=${tmpDir}hostErrMsg.${mmcmd}.$$ |
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| 224 | typeset rc awkRc hostResult |
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| 225 | |
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| 226 | [[ -z $inValue ]] && return 1 |
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| 227 | |
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| 228 | # If still not known, determine the lookup order. |
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| 229 | [[ -z $resolveOrder ]] && \ |
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| 230 | resolveOrder=$(setHostResolveOrder) |
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| 231 | |
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| 232 | # If it is OK to do so, see if the host name appears in /etc/hosts. |
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| 233 | if [[ $resolveOrder = hosts && -f $etcHosts ]] |
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| 234 | then |
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| 235 | $awk ' \ |
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| 236 | BEGIN { entriesFound = 0 } \ |
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| 237 | # Skip comment, empty and short lines. \ |
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| 238 | $1 ~ /^#/ || NF <= 1 { next } \ |
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| 239 | # Compare the inValue to each of the fields. \ |
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| 240 | { for ( i = 1; i <= NF; i++ ) { \ |
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| 241 | if ( $i == "'$inValue'" ) { \ |
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| 242 | { print $2 " is " $1 } \ |
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| 243 | { entriesFound += 1 } \ |
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| 244 | { next } \ |
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| 245 | } \ |
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| 246 | # Ignore in-line comments. \ |
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| 247 | if ( $i ~ /^#/ ) { \ |
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| 248 | { break } \ |
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| 249 | } \ |
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| 250 | } \ |
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| 251 | { next } \ |
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| 252 | } \ |
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| 253 | END { \ |
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| 254 | if ( entriesFound == 1 ) { exit 0 } \ |
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| 255 | if ( entriesFound == 0 ) { exit 1 } \ |
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| 256 | { exit 2 } \ |
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| 257 | } \ |
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| 258 | ' $etcHosts |
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| 259 | awkRc=$? |
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| 260 | |
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| 261 | if [[ $awkRc -eq 0 ]] |
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| 262 | then |
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| 263 | # Name successfully resolved using /etc/hosts. |
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| 264 | nameResolved=yes |
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| 265 | rc=0 |
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| 266 | elif [[ $awkRc -eq 2 ]] |
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| 267 | then |
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| 268 | # There is more than one matching entry in /etc/hosts. |
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| 269 | # Give up - multiple names are not allowed. |
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| 270 | printErrorMsg 498 $mmcmd "$inValue ($etcHosts)" |
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| 271 | return 1 |
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| 272 | else |
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| 273 | # Name not found in /etc/hosts but keep going. |
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| 274 | etcHostsChecked=yes |
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| 275 | rc=1 |
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| 276 | fi # end of if [[ $awkRc -eq 0 ]] |
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| 277 | fi # end of if [[ $resolveOrder = hosts ]] |
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| 278 | |
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| 279 | |
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| 280 | # If the name is not resolved yet (because it is not in /etc/hosts |
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| 281 | # or because we have to start with the host command), try to resolve |
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| 282 | # the name using the Linux host command. |
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| 283 | if [[ $nameResolved = no ]] |
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| 284 | then |
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| 285 | # The output of the host command, and as a result the way we parse it, |
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| 286 | # depends on whether the input parameter is a hostname or an IP address. |
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| 287 | if [[ $inValue = +([0-9]).+([0-9]).+([0-9]).+([0-9])?(.) ]] |
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| 288 | then |
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| 289 | # We start with an IP address. The host command output looks like this: |
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| 290 | # 122.145.53.9.IN-ADDR.ARPA domain name pointer esj.austin.ibm.com |
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| 291 | hostResult=$(LC_ALL=C /usr/bin/host -t a $inValue 2>$hostErrMsg) |
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| 292 | rc=$? |
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| 293 | if [[ $rc -eq 0 ]] |
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| 294 | then |
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| 295 | set -f ; set -- $hostResult ; set +f |
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| 296 | if [[ -z $5 || -n $6 || $3 = not && $4 = found* ]] |
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| 297 | then |
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| 298 | # Something is wrong. Collect error information to be later |
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| 299 | # displayed to the user if the name cannot be resolved. |
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| 300 | # Note: Linux sends the 'not found' message to stdout and returns 0. |
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| 301 | # This forces us to do the funny test for $3 and $4 above. |
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| 302 | |
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| 303 | # Unexpected output from the host command. |
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| 304 | printErrorMsg 499 $mmcmd $inValue 2> $hostErrMsg |
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| 305 | /usr/bin/host -t a $inValue >>$hostErrMsg 2>&1 |
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| 306 | rc=1 |
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| 307 | else |
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| 308 | # Things seem to have worked. |
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| 309 | print -- "${5%.} is $inValue" |
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| 310 | nameResolved=yes |
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| 311 | fi |
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| 312 | fi |
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| 313 | |
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| 314 | else |
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| 315 | # We start with a hostname. The host command output looks like this: |
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| 316 | # esj.austin.ibm.com has address 9.53.145.122 |
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| 317 | # It is possible to have nickname line and more than one address line. |
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| 318 | LC_ALL=C /usr/bin/host -t a $inValue >$hostOutput 2>$hostErrMsg |
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| 319 | rc=$? |
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| 320 | if [[ $rc -eq 0 ]] |
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| 321 | then |
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| 322 | # Strip any nickname lines and eliminate duplicates |
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| 323 | hostResult=$($cat $hostOutput | $grep ' has address ' | $sort -u) |
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| 324 | set -f ; set -- $hostResult ; set +f |
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| 325 | if [[ -z $4 || -n $5 || $3 = not && $4 = found* ]] |
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| 326 | then |
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| 327 | # Something is wrong. Collect error information to be later |
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| 328 | # displayed to the user if the name cannot be resolved. |
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| 329 | # Note: Linux sends the 'not found' message to stdout and returns 0. |
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| 330 | # This forces us to do the funny test for $3 and $4 above. |
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| 331 | |
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| 332 | # Unexpected output from the host command. |
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| 333 | printErrorMsg 499 $mmcmd $inValue 2> $hostErrMsg |
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| 334 | /usr/bin/host -t a $inValue >>$hostErrMsg 2>&1 |
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| 335 | |
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| 336 | # Cannot handle multiple interfaces for host $inValue |
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| 337 | [[ -n $5 ]] && printErrorMsg 498 $mmcmd "$inValue" |
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| 338 | rc=1 |
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| 339 | else |
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| 340 | # Things seem to have worked. |
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| 341 | print -- "${1%.} is $4" |
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| 342 | nameResolved=yes |
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| 343 | fi |
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| 344 | fi |
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| 345 | fi # end of if [[ $inValue = +([0-9]).+([0-9]).+([0-9]).+([0-9]) ]] |
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| 346 | fi # end of if [[ $nameResolved = no ]] |
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| 347 | |
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| 348 | |
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| 349 | # If the name is still not resolved, and we haven't tried it yet, |
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| 350 | # try resolving the name by looking up /etc/hosts. |
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| 351 | if [[ $nameResolved = no ]] |
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| 352 | then |
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| 353 | if [[ $etcHostsChecked = no ]] |
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| 354 | then |
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| 355 | $awk ' \ |
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| 356 | BEGIN { entriesFound = 0 } \ |
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| 357 | # Skip comment, empty and short lines. \ |
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| 358 | $1 ~ /^#/ || NF <= 1 { next } \ |
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| 359 | # Compare the inValue to each of the fields. \ |
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| 360 | { for ( i = 1; i <= NF; i++ ) { \ |
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| 361 | if ( $i == "'$inValue'" ) { \ |
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| 362 | { print $2 " is " $1 } \ |
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| 363 | { entriesFound += 1 } \ |
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| 364 | { next } \ |
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| 365 | } \ |
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| 366 | # Ignore in-line comments. \ |
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| 367 | if ( $i ~ /^#/ ) { \ |
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| 368 | { break } \ |
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| 369 | } \ |
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| 370 | } \ |
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| 371 | { next } \ |
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| 372 | } \ |
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| 373 | END { \ |
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| 374 | if ( entriesFound == 1 ) { exit 0 } \ |
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| 375 | if ( entriesFound == 0 ) { exit 1 } \ |
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| 376 | { exit 2 } \ |
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| 377 | } \ |
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| 378 | ' $etcHosts |
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| 379 | awkRc=$? |
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| 380 | fi # end of if [[ $etcHostsChecked = no ]] |
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| 381 | |
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| 382 | if [[ $awkRc -eq 0 ]] |
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| 383 | then |
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| 384 | # Name successfully resolved using /etc/hosts. |
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| 385 | rc=0 |
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| 386 | elif [[ $awkRc -eq 2 ]] |
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| 387 | then |
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| 388 | # There is more than one matching entry in /etc/hosts. |
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| 389 | printErrorMsg 498 $mmcmd "$inValue ($etcHosts)" |
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| 390 | elif [[ -s $hostErrMsg ]] |
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| 391 | then |
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| 392 | # Name not found in /etc/hosts. Show the error information |
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| 393 | # from the Linux host command above. |
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| 394 | $cat $hostErrMsg 1>&2 |
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| 395 | else |
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| 396 | # Name not found in /etc/hosts and there is no other error information. |
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| 397 | printErrorMsg 500 $mmcmd $inValue |
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| 398 | fi # end of if [[ $awkRc -eq 0 ]] |
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| 399 | fi # end of if [[ $nameResolved = no ]] |
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| 400 | |
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| 401 | $rm -f $hostOutput $hostErrMsg |
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| 402 | return $rc |
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| 403 | |
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| 404 | } #-------------- end of function host_aixformat ------------------ |
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| 405 | |
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| 406 | |
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| 407 | ################################################################## |
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| 408 | # |
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| 409 | # Function: Remap ts return codes to OS-independent values. |
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| 410 | # |
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| 411 | # Input: $1 - the return code to be mapped. |
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| 412 | # |
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| 413 | # Output: the remapped input return code |
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| 414 | # |
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| 415 | # Returns: always zero |
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| 416 | # |
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| 417 | # Example: |
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| 418 | # tstatus -m fsname |
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| 419 | # rc=$(remapRC $?) |
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| 420 | # |
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| 421 | ################################################################## |
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| 422 | function remapRC # <returnCode> |
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| 423 | { |
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| 424 | typeset sourceFile="mmglobfuncs.Linux.sh" |
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| 425 | [[ -n $DEBUG || -n $DEBUGremapRC ]] && set -x |
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| 426 | $mmTRACE_ENTER "$*" |
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| 427 | typeset rcIn=$1 |
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| 428 | typeset rcOut |
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| 429 | |
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| 430 | case $rcIn in |
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| 431 | |
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| 432 | $MM_DaemonDown2 ) rcOut=$MM_DaemonDown ;; |
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| 433 | $MM_HostDown2 ) rcOut=$MM_HostDown ;; |
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| 434 | $MM_TimedOut2 ) rcOut=$MM_TimedOut ;; |
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| 435 | $MM_Remotefs2 ) rcOut=$MM_Remotefs ;; |
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| 436 | $MM_UnknownCluster2 ) rcOut=$MM_UnknownCluster ;; |
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| 437 | $MM_ConnectionReset2 ) rcOut=$MM_ConnectionReset ;; |
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| 438 | $MM_ConnAborted ) rcOut=$MM_DaemonDown ;; |
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| 439 | |
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| 440 | * ) rcOut=$rcIn ;; |
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| 441 | |
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| 442 | esac # end of case $rcIn in |
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| 443 | |
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| 444 | # Return the new value. |
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| 445 | print -- "$rcOut" |
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| 446 | return 0 |
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| 447 | |
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| 448 | } #------- end of function remapRC -------------------- |
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| 449 | |
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