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3ef1494685
To remove bracketed strings containing "PATCH" from the subject line cleanup_subject() scans the subject for the opening bracket using an offset from the beginning of the line. It then searches for the closing bracket with strchr(). To calculate the length of the bracketed string it unfortunately adds rather than subtracts the offset from the result of strchr(). This leads to an out of bounds access in memmem() when looking to see if the brackets contain "PATCH". We have tests that trigger this bug that were added inae52d57f0b(t5100: add some more mailinfo tests, 2017-05-31). The commit message mentions that they are marked test_expect_failure as they trigger an assertion in strbuf_splice(). While it is reassuring that strbuf_splice() detects the problem and dies in retrospect that should perhaps have warranted a little more investigation. The bug was introduced by17635fc900(mailinfo: -b option keeps [bracketed] strings that is not a [PATCH] marker, 2009-07-15). I think the reason it has survived so long is that '-b' is not a popular option and without it the offset is always zero. This was found by the address sanitizer while I was cleaning up the test_todo idea in [1]. [1] https://lore.kernel.org/git/db558292-2783-3270-4824-43757822a389@gmail.com/ Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
271 lines
7.6 KiB
Bash
Executable file
271 lines
7.6 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano
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#
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test_description='git mailinfo and git mailsplit test'
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. ./test-lib.sh
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DATA="$TEST_DIRECTORY/t5100"
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test_expect_success 'split sample box' \
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'git mailsplit -o. "$DATA/sample.mbox" >last &&
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last=$(cat last) &&
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echo total is $last &&
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test $(cat last) = 18'
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check_mailinfo () {
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mail=$1 opt=$2
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mo="$mail$opt"
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git mailinfo -u $opt "msg$mo" "patch$mo" <"$mail" >"info$mo" &&
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test_cmp "$DATA/msg$mo" "msg$mo" &&
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test_cmp "$DATA/patch$mo" "patch$mo" &&
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test_cmp "$DATA/info$mo" "info$mo"
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}
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for mail in 00*
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do
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test_expect_success "mailinfo $mail" '
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check_mailinfo "$mail" "" &&
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if test -f "$DATA/msg$mail--scissors"
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then
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check_mailinfo "$mail" --scissors
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fi &&
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if test -f "$DATA/msg$mail--no-inbody-headers"
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then
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check_mailinfo "$mail" --no-inbody-headers
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fi &&
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if test -f "$DATA/msg$mail--message-id"
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then
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check_mailinfo "$mail" --message-id
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fi
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'
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done
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test_expect_success 'split box with rfc2047 samples' \
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'mkdir rfc2047 &&
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git mailsplit -orfc2047 "$DATA/rfc2047-samples.mbox" \
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>rfc2047/last &&
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last=$(cat rfc2047/last) &&
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echo total is $last &&
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test $(cat rfc2047/last) = 11'
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for mail in rfc2047/00*
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do
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test_expect_success "mailinfo $mail" '
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git mailinfo -u "$mail-msg" "$mail-patch" <"$mail" >"$mail-info" &&
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echo msg &&
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test_cmp "$DATA/empty" "$mail-msg" &&
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echo patch &&
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test_cmp "$DATA/empty" "$mail-patch" &&
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echo info &&
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test_cmp "$DATA/rfc2047-info-$(basename $mail)" "$mail-info"
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'
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done
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test_expect_success 'respect NULs' '
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git mailsplit -d3 -o. "$DATA/nul-plain" &&
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test_cmp "$DATA/nul-plain" 001 &&
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(cat 001 | git mailinfo msg patch) &&
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test_line_count = 4 patch
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'
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test_expect_success 'Preserve NULs out of MIME encoded message' '
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git mailsplit -d5 -o. "$DATA/nul-b64.in" &&
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test_cmp "$DATA/nul-b64.in" 00001 &&
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git mailinfo msg patch <00001 &&
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test_cmp "$DATA/nul-b64.expect" patch
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'
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test_expect_success 'mailinfo on from header without name works' '
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mkdir info-from &&
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git mailsplit -oinfo-from "$DATA/info-from.in" &&
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test_cmp "$DATA/info-from.in" info-from/0001 &&
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git mailinfo info-from/msg info-from/patch \
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<info-from/0001 >info-from/out &&
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test_cmp "$DATA/info-from.expect" info-from/out
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'
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test_expect_success 'mailinfo finds headers after embedded From line' '
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mkdir embed-from &&
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git mailsplit -oembed-from "$DATA/embed-from.in" &&
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test_cmp "$DATA/embed-from.in" embed-from/0001 &&
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git mailinfo embed-from/msg embed-from/patch \
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<embed-from/0001 >embed-from/out &&
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test_cmp "$DATA/embed-from.expect" embed-from/out
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'
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test_expect_success 'mailinfo on message with quoted >From' '
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mkdir quoted-from &&
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git mailsplit -oquoted-from "$DATA/quoted-from.in" &&
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test_cmp "$DATA/quoted-from.in" quoted-from/0001 &&
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git mailinfo quoted-from/msg quoted-from/patch \
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<quoted-from/0001 >quoted-from/out &&
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test_cmp "$DATA/quoted-from.expect" quoted-from/msg
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'
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test_expect_success 'mailinfo unescapes with --mboxrd' '
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mkdir mboxrd &&
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git mailsplit -omboxrd --mboxrd \
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"$DATA/sample.mboxrd" >last &&
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test x"$(cat last)" = x2 &&
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for i in 0001 0002
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do
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git mailinfo mboxrd/msg mboxrd/patch \
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<mboxrd/$i >mboxrd/out &&
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test_cmp "$DATA/${i}mboxrd" mboxrd/msg || return 1
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done &&
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sp=" " &&
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echo "From " >expect &&
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echo "From " >>expect &&
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echo >> expect &&
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cat >sp <<-INPUT_END &&
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From mboxrd Mon Sep 17 00:00:00 2001
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From: trailing spacer <sp@example.com>
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Subject: [PATCH] a commit with trailing space
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From$sp
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>From$sp
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INPUT_END
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git mailsplit -f2 -omboxrd --mboxrd <sp >last &&
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test x"$(cat last)" = x1 &&
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git mailinfo mboxrd/msg mboxrd/patch <mboxrd/0003 &&
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test_cmp expect mboxrd/msg
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'
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test_expect_success 'mailinfo handles rfc2822 quoted-string' '
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mkdir quoted-string &&
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git mailinfo /dev/null /dev/null <"$DATA/quoted-string.in" \
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>quoted-string/info &&
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test_cmp "$DATA/quoted-string.expect" quoted-string/info
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'
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test_expect_success 'mailinfo handles rfc2822 comment' '
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mkdir comment &&
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git mailinfo /dev/null /dev/null <"$DATA/comment.in" \
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>comment/info &&
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test_cmp "$DATA/comment.expect" comment/info
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'
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test_expect_success 'mailinfo with mailinfo.scissors config' '
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test_config mailinfo.scissors true &&
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(
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mkdir sub &&
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cd sub &&
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git mailinfo ../msg0014.sc ../patch0014.sc <../0014 >../info0014.sc
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) &&
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test_cmp "$DATA/msg0014--scissors" msg0014.sc &&
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test_cmp "$DATA/patch0014--scissors" patch0014.sc &&
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test_cmp "$DATA/info0014--scissors" info0014.sc
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'
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test_expect_success 'mailinfo no options' '
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subj="$(echo "Subject: [PATCH] [other] [PATCH] message" |
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git mailinfo /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: message"
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'
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test_expect_success 'mailinfo -k' '
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subj="$(echo "Subject: [PATCH] [other] [PATCH] message" |
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git mailinfo -k /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: [PATCH] [other] [PATCH] message"
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'
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test_expect_success 'mailinfo -b no [PATCH]' '
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subj="$(echo "Subject: [other] message" |
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git mailinfo -b /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: [other] message"
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'
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test_expect_success 'mailinfo -b leading [PATCH]' '
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subj="$(echo "Subject: [PATCH] [other] message" |
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git mailinfo -b /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: [other] message"
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'
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test_expect_success 'mailinfo -b double [PATCH]' '
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subj="$(echo "Subject: [PATCH] [PATCH] message" |
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git mailinfo -b /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: message"
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'
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test_expect_success 'mailinfo -b trailing [PATCH]' '
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subj="$(echo "Subject: [other] [PATCH] message" |
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git mailinfo -b /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: [other] message"
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'
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test_expect_success 'mailinfo -b separated double [PATCH]' '
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subj="$(echo "Subject: [PATCH] [other] [PATCH] message" |
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git mailinfo -b /dev/null /dev/null)" &&
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test z"$subj" = z"Subject: [other] message"
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'
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test_expect_success 'mailinfo handles unusual header whitespace' '
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git mailinfo /dev/null /dev/null >actual <<-\EOF &&
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From:Real Name <user@example.com>
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Subject: extra spaces
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EOF
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cat >expect <<-\EOF &&
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Author: Real Name
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Email: user@example.com
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Subject: extra spaces
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EOF
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test_cmp expect actual
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'
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check_quoted_cr_mail () {
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mail="$1" && shift &&
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git mailinfo -u "$@" "$mail.msg" "$mail.patch" \
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<"$mail" >"$mail.info" 2>"$mail.err" &&
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test_cmp "$mail-expected.msg" "$mail.msg" &&
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test_cmp "$mail-expected.patch" "$mail.patch" &&
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test_cmp "$DATA/quoted-cr-info" "$mail.info"
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}
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test_expect_success 'split base64 email with quoted-cr' '
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mkdir quoted-cr &&
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git mailsplit -oquoted-cr "$DATA/quoted-cr.mbox" >quoted-cr/last &&
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test $(cat quoted-cr/last) = 2
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'
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test_expect_success 'mailinfo warn CR in base64 encoded email' '
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sed -e "s/%%$//" -e "s/%%/$(printf \\015)/g" "$DATA/quoted-cr-msg" \
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>quoted-cr/0001-expected.msg &&
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sed "s/%%/$(printf \\015)/g" "$DATA/quoted-cr-msg" \
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>quoted-cr/0002-expected.msg &&
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sed -e "s/%%$//" -e "s/%%/$(printf \\015)/g" "$DATA/quoted-cr-patch" \
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>quoted-cr/0001-expected.patch &&
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sed "s/%%/$(printf \\015)/g" "$DATA/quoted-cr-patch" \
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>quoted-cr/0002-expected.patch &&
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check_quoted_cr_mail quoted-cr/0001 &&
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test_must_be_empty quoted-cr/0001.err &&
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check_quoted_cr_mail quoted-cr/0002 &&
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grep "quoted CRLF detected" quoted-cr/0002.err &&
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check_quoted_cr_mail quoted-cr/0001 --quoted-cr=nowarn &&
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test_must_be_empty quoted-cr/0001.err &&
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check_quoted_cr_mail quoted-cr/0002 --quoted-cr=nowarn &&
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test_must_be_empty quoted-cr/0002.err &&
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cp quoted-cr/0001-expected.msg quoted-cr/0002-expected.msg &&
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cp quoted-cr/0001-expected.patch quoted-cr/0002-expected.patch &&
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check_quoted_cr_mail quoted-cr/0001 --quoted-cr=strip &&
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test_must_be_empty quoted-cr/0001.err &&
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check_quoted_cr_mail quoted-cr/0002 --quoted-cr=strip &&
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test_must_be_empty quoted-cr/0002.err
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'
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test_done
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