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1 #ident "@(#)slow.filter 1.3 05/06/08 SMI" /* SVr4.0 1.7 */
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2 #
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3 # CDDL HEADER START
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4 #
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5 # The contents of this file are subject to the terms of the
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6 # Common Development and Distribution License, Version 1.0 only
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7 # (the "License"). You may not use this file except in compliance
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8 # with the License.
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9 #
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10 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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11 # or http://www.opensolaris.org/os/licensing.
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12 # See the License for the specific language governing permissions
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13 # and limitations under the License.
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14 #
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15 # When distributing Covered Code, include this CDDL HEADER in each
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16 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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17 # If applicable, add the following below this CDDL HEADER, with the
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18 # fields enclosed by brackets "[]" replaced with your own identifying
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19 # information: Portions Copyright [yyyy] [name of copyright owner]
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20 #
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21 # CDDL HEADER END
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22 #
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23
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24 ###########
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25 ##
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26 ## Simple shell script that saves the Spooler alot of headaches.
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27 ## This routine invokes a slow filter on each of the files in a
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28 ## user's print request, sending the output to separate files.
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29 ## The Spooler will take ANYTHING that goes to standard error
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30 ## and give it to the user. Non-empty standard error or non-zero
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31 ## exit code cause cancellation of the print request.
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32 ##
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33 ## Calling sequence:
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34 ##
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35 ## slow.filter prefix file1 file2 ... fileN
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36 ##
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37 ## "prefix" is prefix of full path name for output files. All we
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38 ## do is append a ``-k'' for k = 1, 2, ..., N.
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39 ##########
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40
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41 #####
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42 #
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43 # Most of the time we don't want the standard error to be captured
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44 # by the Spooler, mainly to avoid "Terminated" messages that the
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45 # shell puts out when we get a SIGTERM. We'll save the standard
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46 # error channel under another number, so we can use it when it
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47 # should be captured.
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48 #####
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49 exec 5>&2 2>/dev/null
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50
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51 #####
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52 # Error message formatter:
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53 #
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54 # Invoke as
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55 #
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56 # errmsg severity message-number problem help
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57 #
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58 # where severity is "ERROR" or "WARNING", message-number is
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59 # a unique identifier, problem is a short description of the
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60 # problem, and help is a short suggestion for fixing the problem.
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61 #####
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62
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63 LP_ERR_LABEL="UX:lp"
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64
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65 E_IP_ARGS=1
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66 E_IP_OPTS=2
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67 E_IP_FILTER=3
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68 E_IP_STTY=4
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69 E_IP_UNKNOWN=5
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70 E_IP_BADFILE=6
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71 E_IP_BADCHARSET=7
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72 E_IP_BADCPI=8
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73 E_IP_BADLPI=9
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74 E_IP_BADWIDTH=10
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75 E_IP_BADLENGTH=11
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76 E_IP_ERRORS=12
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77
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78 errmsg () {
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79 case $1 in
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80 ERROR )
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81 sev=" ERROR";
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82 ;;
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83 WARNING )
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84 sev="WARNING";
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85 ;;
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86 esac
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87 # tag=`expr "${LP_ERR_LABEL}" : "\(.*\):"``expr "${LP_ERR_LABEL}" : ".*:\(.*\)"`
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88 echo "${LP_ERR_LABEL}: ${sev}: $3
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89 TO FIX: $4" >&5
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90 }
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91
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92 prefix=$1
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93 shift
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94
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95 k=1
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96 for file in "$@"
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97 do
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98 if [ ! -r "${file}" ]
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99 then
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100 errmsg ERROR ${E_IP_BADFILE} \
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101 "Cannot read the file \"${file}\"." \
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102 "See if it still exists and is readable, or
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103 consult your system administrator."
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104 else
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105 0<${file} 1>${prefix}-${k} eval "2>&5 ${FILTER}" || {
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106 exit_code=$?
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107 while [ 127 -lt "${exit_code}" ]
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108 do
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109 exit_code=`expr "${exit_code}" - 128`
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110 done
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111 exit ${exit_code}
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112 }
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113 fi
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114 k=`expr "${k}" + 1`
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115 done
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