b20013e387
bash 4.3 changes the semantics of the read builtin. It will now silently ignore NUL characters in the input stream. This is problematic since the paludis pipe command protocol uses the NUL character as an indicator for end of message. Passing read an explicit delimiter of a NUL char ($'\0') ensures that it treats the NUL character as valid input. This avoids the hang during the process tests. The delimiter option has existed prior to 4.3 (and explicitly tested against 4.2p45) and should not break compatibility with older releases of bash.
61 lines
1.4 KiB
Bash
Executable File
61 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# vim: set ft=sh sw=4 sts=4 et :
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mkdir process_TEST_dir || exit 2
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cd process_TEST_dir || exit 3
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cat <<'END' > pipe_test.bash
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#!/usr/bin/env bash
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echo "$1" | tr "\n" "\0" 1>&$PALUDIS_PIPE_COMMAND_WRITE_FD
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response1=
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while true ; do
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read -d $'\0' -n 1 -u $PALUDIS_PIPE_COMMAND_READ_FD c
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[[ "$c" == $'\0' ]] && break
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response1="${response1}${c}"
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done
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echo "$2" | tr "\n" "\0" 1>&$PALUDIS_PIPE_COMMAND_WRITE_FD
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response2=
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while true ; do
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read -d $'\0' -n 1 -u $PALUDIS_PIPE_COMMAND_READ_FD c
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[[ "$c" == $'\0' ]] && break
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response2="${response2}${c}"
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done
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exit $response1$response2
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END
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cat <<'END' > captured_pipe_test.bash
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#!/usr/bin/env bash
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echo "$1" | tr "\n" "\0" 1>&$PALUDIS_PIPE_COMMAND_WRITE_FD
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response1=
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while true ; do
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read -d $'\0' -n 1 -u $PALUDIS_PIPE_COMMAND_READ_FD c
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[[ "$c" == $'\0' ]] && break
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response1="${response1}${c}"
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done
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echo "$2" | tr "\n" "\0" 1>&$PALUDIS_PIPE_COMMAND_WRITE_FD
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response2=
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while true ; do
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read -d $'\0' -n 1 -u $PALUDIS_PIPE_COMMAND_READ_FD c
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[[ "$c" == $'\0' ]] && break
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response2="${response2}${c}"
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done
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echo "$3" | tr "\n" "\0" 1>&$PALUDIS_PIPE_COMMAND_WRITE_FD
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response3=
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while true ; do
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read -d $'\0' -n 1 -u $PALUDIS_PIPE_COMMAND_READ_FD c
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[[ "$c" == $'\0' ]] && break
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response3="${response3}${c}"
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done
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echo $response2
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exit $response1$response3
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END
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