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128 lines
2.9 KiB
Fish
128 lines
2.9 KiB
Fish
# RUN: fish=%fish %fish -C "set helper %fish_test_helper" %s
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#REQUIRES: command -v %fish_test_helper
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# Check that we don't leave stray FDs.
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set -l fds ($helper print_fds)
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test "$fds" = "0 1 2"
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or begin
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echo This test needs to have all fds other than 0 1 and 2 closed before running >&2
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echo Please close the other fds and try again >&2
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exit 1
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end
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$helper print_fds
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# CHECK: 0 1 2
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$helper print_fds 0>&-
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# CHECK: 1 2
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$helper print_fds 0>&- 2>&-
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# CHECK: 1
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false | $helper print_fds 0>&-
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# CHECK: 0 1 2
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$helper print_fds </dev/null
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# CHECK: 0 1 2
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$helper print_fds </dev/null
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# CHECK: 0 1 2
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$helper print_fds 3</dev/null
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# CHECK: 0 1 2 3
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$helper print_fds 5>&2
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# CHECK: 0 1 2 5
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# This attempts to trip a case where the file opened in fish
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# has the same fd as the redirection. In this case, the dup2
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# does not clear the CLOEXEC bit.
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$helper print_fds 4</dev/null
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# CHECK: 0 1 2 4
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$helper print_fds 5</dev/null
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# CHECK: 0 1 2 5
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$helper print_fds 6</dev/null
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# CHECK: 0 1 2 6
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$helper print_fds 7</dev/null
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# CHECK: 0 1 2 7
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$helper print_fds 8</dev/null
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# CHECK: 0 1 2 8
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$helper print_fds 9</dev/null
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# CHECK: 0 1 2 9
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$helper print_fds 10</dev/null
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# CHECK: 0 1 2 10
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$helper print_fds 11</dev/null
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# CHECK: 0 1 2 11
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$helper print_fds 12</dev/null
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# CHECK: 0 1 2 12
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$helper print_fds 13</dev/null
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# CHECK: 0 1 2 13
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$helper print_fds 14</dev/null
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# CHECK: 0 1 2 14
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$helper print_fds 15</dev/null
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# CHECK: 0 1 2 15
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$helper print_fds 16</dev/null
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# CHECK: 0 1 2 16
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$helper print_fds 17</dev/null
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# CHECK: 0 1 2 17
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$helper print_fds 18</dev/null
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# CHECK: 0 1 2 18
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$helper print_fds 19</dev/null
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# CHECK: 0 1 2 19
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$helper print_fds 20</dev/null
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# CHECK: 0 1 2 20
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# Check heightenization of the redirection file descriptors
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#
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# If heightenization does NOT work, ">$tmpfile" creates a temporary fd on a fd n
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# (n being the first free descriptor) during parsing, then "n>&1" redirects fd n
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# to fd 1 (still stdout at this stage), lastly, ">$tmpfile" redirects fd 1 is
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# redirected to the "temporary" fd n (which is now stdout instead of $tmpfile).
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#
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# If heightenization does work, ">$tmpfile" creates a temporary fd on 10+,
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# then fd n is redirected to fd 1 (still stdout), the fd 1 is redirect to
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# the "temporary" fd 10+ (still $tmpfile)
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#
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# Since we don't know what `n` will be, we need to redirect all the descriptors
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# reserved for the user
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set -l tmpfile (mktemp)
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printf 'stdout: %s\n' "$($fish -c "$helper print_fds 3>&1 4>&1 5>&1 6>&1 7>&1 8>&1 9>&1 >$tmpfile")"
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printf "tmp file: %s\n" $(cat $tmpfile)
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# CHECK: stdout:
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# CHECK: tmp file: 0 1 2 3 4 5 6 7 8 9
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# Check heightenization of the file descriptors when sourcing
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echo '
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path filter /proc/$fish_pid/fd/{3,4,5,6,7,8,9}
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' >"$tmpfile"
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echo start source
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$fish -c "source '$tmpfile'"
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echo end source
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# CHECK: start source
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# CHECK: end source
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# Check heightenization of descriptors for script files passed to fish
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echo start fish
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$fish "$tmpfile"
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echo end fish
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# CHECK: start fish
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# CHECK: end fish
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