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add a 'paste' command to write a local file to the terminal #27

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add a 'paste' command to write a local file to the terminal #27

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Commits on Feb 6, 2021

  1. mux: move BUFSIZE definition into header file 

    This definition can be useful in other parts of the code too.

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
    @rohieb
    rohieb committed Feb 6, 2021
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  2. commands: improve 'execute' help text 

    Make clear that this is meant as batch processing for CLI commands
instead of executing e.g. an external shell script.

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
    @rohieb
    rohieb committed Feb 6, 2021
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  3. commands: add 'paste' command to write a local file to the terminal 

    This command can be useful as replacement for the clipboard, e.g. when working
remotely over SSH, and when file transfer to the target is not available
otherwise.

Usage example (glados is my host machine, RPi3 is the target, non-printable key
presses in angle brackets):

    rohieb@glados:~ $ cat apparmor-profile
    #include <tunables/global>
    profile /usr/bin/rauc {
      #include <abstractions/base>

      capability sys_rawio,

      /usr/bin/rauc mr,
      /usr/bin/barebox-state cx,
      /usr/sbin/unsquashfs cx,
      /usr/bin/busybox.nosuid cx,
      /run/rauc/bundle/hook.sh Ux,
      /tmp/** rw,
      /mnt/updatebundle.rauc rk,
      /etc/rauc/* r,
      /proc/cmdline r,
      /proc/*/fd/ r,
      /proc/*/mountinfo r,
      /run/rauc/** rw,
      /dev/mmcblk* rw,
      /sys/devices/**/mmcblk*/mmcblk*boot*/force_ro rw,
      /etc/ssl/openssl.cnf r,
    }

    rohieb@glados:~ $ microcom  -s 115200 /dev/ttyUSB0
    root@RPi3:~ cat /usr/share/apparmor/usr.bin.rauc
    cat: can't open '/usr/share/apparmor/usr.bin.rauc': No such file or directory
    root@RPi3:~ cat > /usr/share/apparmor/usr.bin.rauc
    <Ctrl-\>
    Enter command. Try 'help' for a list of builtin commands
    -> paste apparmor-profile

    ----------------------
    #include <tunables/global>
    profile /usr/bin/rauc flags=(attach_disconnected) {
      #include <abstractions/base>

      capability sys_rawio,

      /usr/bin/rauc mr,
      /usr/bin/barebox-state cx,
      /usr/sbin/unsquashfs cx,
      /usr/bin/busybox.nosuid cx,
      /run/rauc/bundle/hook.sh Ux,
      /tmp/** rw,
      /mnt/updatebundle.rauc rk,
      /etc/rauc/* r,
      /proc/cmdline r,
      /proc/*/fd/ r,
      /proc/*/mountinfo r,
      /run/rauc/** rw,
      /dev/mmcblk* rw,
      /sys/devices/**/mmcblk*/mmcblk*boot*/force_ro rw,
      /etc/ssl/openssl.cnf r,
    }
    <Ctrl-D>
    root@RPi3:~ ls -l /usr/share/apparmor/usr.bin.rauc
    -rw-r--r--    1 root     root           521 Sep  1 00:12 /usr/share/apparmor/usr.bin.rauc

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
    @rohieb
    rohieb committed Feb 6, 2021
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