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      1 # $NetBSD: t_dd.sh,v 1.3 2022/05/24 21:42:37 rillig Exp $
      2 #
      3 # Copyright (c) 2007 The NetBSD Foundation, Inc.
      4 # All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 # 1. Redistributions of source code must retain the above copyright
     10 #    notice, this list of conditions and the following disclaimer.
     11 # 2. Redistributions in binary form must reproduce the above copyright
     12 #    notice, this list of conditions and the following disclaimer in the
     13 #    documentation and/or other materials provided with the distribution.
     14 #
     15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25 # POSSIBILITY OF SUCH DAMAGE.
     26 #
     27 
     28 test_dd_length() {
     29 	result=$1
     30 	cmd=$2
     31 	set -- x `eval $cmd | wc -c`
     32 	res=$2
     33 	if [ x"$res" != x"$result" ]; then
     34 		atf_fail "Expected $result bytes of output, got $res: $cmd"
     35 	fi
     36 }
     37 
     38 atf_test_case length
     39 length_head() {
     40 	# XXX The PR should be stored in a tag.
     41 	atf_set "descr" "Test for result messages accidentally pumped into" \
     42 	                "the output file if the standard IO descriptors are" \
     43 	                "closed.  The last of the three following tests is" \
     44 	                "the one expected to fail.  (NetBSD PR bin/8521)"
     45 }
     46 length_body() {
     47 	test_dd_length 512 \
     48 	    "dd if=/dev/zero of=/dev/fd/5 count=1 5>&1 >/dev/null 2>/dev/null"
     49 	test_dd_length 512 \
     50 	    "dd if=/dev/zero of=/dev/fd/5 count=1 5>&1 >&- 2>/dev/null"
     51 	test_dd_length 512 \
     52 	    "dd if=/dev/zero of=/dev/fd/5 count=1 5>&1 >&- 2>&-"
     53 }
     54 
     55 test_dd_io() {
     56 	res="`echo -n "$2" | eval $1`"
     57         if [ x"$res" != x"$3" ]; then
     58 		atf_fail "Expected \"$3\", got \"$res\": $1"
     59 	fi
     60 }
     61 
     62 allbits1="\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377"
     63 
     64 ebcdicbits1="\000\001\002\003\067\055\056\057\026\005\045\013\014\015\016\017\020\021\022\023\074\075\062\046\030\031\077\047\034\035\036\037\100\132\177\173\133\154\120\175\115\135\134\116\153\140\113\141\360\361\362\363\364\365\366\367\370\371\172\136\114\176\156\157\174\301\302\303\304\305\306\307\310\311\321\322\323\324\325\326\327\330\331\342\343\344\345\346\347\350\351\255\340\275\232\155\171\201\202\203\204\205\206\207\210\211\221\222\223\224\225\226\227\230\231\242\243\244\245\246\247\250\251\300\117\320\137\007\040\041\042\043\044\025\006\027\050\051\052\053\054\011\012\033\060\061\032\063\064\065\066\010\070\071\072\073\004\024\076\341\101\102\103\104\105\106\107\110\111\121\122\123\124\125\126\127\130\131\142\143\144\145\146\147\150\151\160\161\162\163\164\165\166\167\170\200\212\213\214\215\216\217\220\152\233\234\235\236\237\240\252\253\254\112\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\241\276\277\312\313\314\315\316\317\332\333\334\335\336\337\352\353\354\355\356\357\372\373\374\375\376\377"
     65 
     66 allvisbits=`echo -n "$allbits1" | unvis | vis`
     67 ebcdicvisbits=`echo -n "$ebcdicbits1" | unvis | vis`
     68 
     69 atf_test_case io
     70 io_head() {
     71 	atf_set "descr" "This checks the combination of bs= with" \
     72 	                "conv=ebcdic.  Prior to revision 1.24 of dd's" \
     73 	                "args.c, the conv option would be ignored."
     74 }
     75 io_body() {
     76 	test_dd_io "unvis | dd 2>/dev/null | vis" \
     77 	           "$allvisbits" "$allvisbits"
     78 	test_dd_io "unvis | dd ibs=1 2>/dev/null | vis" \
     79 	           "$allvisbits" "$allvisbits"
     80 	test_dd_io "unvis | dd obs=1 2>/dev/null | vis" \
     81 	           "$allvisbits" "$allvisbits"
     82 	test_dd_io "unvis | dd bs=1 2>/dev/null | vis" \
     83 	           "$allvisbits" "$allvisbits"
     84 
     85 	test_dd_io "unvis | dd conv=ebcdic 2>/dev/null | vis" \
     86 	           "$allvisbits" "$ebcdicvisbits"
     87 	test_dd_io "unvis | dd conv=ebcdic ibs=512 2>/dev/null | vis" \
     88 	           "$allvisbits" "$ebcdicvisbits"
     89 	test_dd_io "unvis | dd conv=ebcdic obs=512 2>/dev/null | vis" \
     90 	           "$allvisbits" "$ebcdicvisbits"
     91 	test_dd_io "unvis | dd conv=ebcdic bs=512 2>/dev/null | vis" \
     92 	           "$allvisbits" "$ebcdicvisbits"
     93 
     94 	test_dd_io "unvis | dd conv=ebcdic 2>/dev/null | vis" \
     95 	           "$allvisbits" "$ebcdicvisbits"
     96 	test_dd_io "unvis | dd conv=ebcdic ibs=1 2>/dev/null | vis" \
     97 	           "$allvisbits" "$ebcdicvisbits"
     98 	test_dd_io "unvis | dd conv=ebcdic obs=1 2>/dev/null | vis" \
     99 	           "$allvisbits" "$ebcdicvisbits"
    100 	test_dd_io "unvis | dd conv=ebcdic bs=1 2>/dev/null | vis" \
    101 	           "$allvisbits" "$ebcdicvisbits"
    102 }
    103 
    104 atf_test_case seek
    105 seek_head() {
    106 	atf_set "descr" "Tests output file seeking"
    107 }
    108 
    109 seek_body() {
    110 	echo TEST1234 > testfile
    111 	atf_check -s exit:0 -e ignore \
    112 	    dd if=/dev/zero of=testfile seek=1 bs=8k count=1
    113 	atf_check -s exit:0 -e ignore -o match:'^TEST1234$' dd if=testfile
    114 	eval $(stat -s testfile)
    115 	atf_check_equal $st_size $((2*8192))
    116 
    117 	echo -n TEST1234 > tf2
    118 	atf_check -s exit:0 -e ignore -x \
    119 	    'dd bs=4 if=/dev/zero count=1 | tr \\0 \\n | dd of=tf2 bs=4 seek=1'
    120 	atf_check -s exit:0 -e ignore -o match:'^TEST$' dd if=tf2
    121 	eval $(stat -s tf2)
    122 	atf_check_equal $st_size 8
    123 }
    124 
    125 atf_test_case swab
    126 swab_head() {
    127 	atf_set "descr" "Tests conv=swab"
    128 }
    129 
    130 swab_body() {
    131 	echo -n abcdefgh > testfile
    132 
    133 	test_swab() {
    134 		atf_check -o inline:"$1" \
    135 		    dd if=testfile conv=swab msgfmt=quiet $2
    136 	}
    137 
    138 	atf_check -o inline:badcfehg \
    139 	    dd if=testfile conv=swab msgfmt=quiet
    140 
    141 	test_swap badcfehg # default block size
    142 	test_swab abcdefgh bs=1
    143 	test_swab badcfehg bs=2
    144 	test_swab bacedfhg bs=3
    145 	test_swab badcfehg bs=4
    146 	test_swab badcegfh bs=5
    147 	test_swab badcfehg bs=6
    148 	test_swab badcfegh bs=7
    149 	test_swab badcfehg bs=8
    150 }
    151 
    152 atf_init_test_cases()
    153 {
    154 	atf_add_test_case length
    155 	atf_add_test_case io
    156 	atf_add_test_case seek
    157 	atf_add_test_case swab
    158 }
    159