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• File write
• File read

File write

This executable can write data to local files.

• Comment

  Note that echo terminates the string with a DOS-style line terminator (\r\n), if that’s a problem and your scenario allows it, you can create the file outside dosbox, then use copy to do the actual write.

  Unprivileged

  This function can be performed by any unprivileged user.

  dosbox -c 'mount c /' -c "echo DATA >c:\path\to\output" -c exit

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  dosbox -c 'mount c /' -c "echo DATA >c:\path\to\output" -c exit

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  dosbox -c 'mount c /' -c "echo DATA >c:\path\to\output" -c exit

File read

This executable can read data from local files.

• Comment

  The file content will be displayed in the DOSBox graphical window.

  Unprivileged

  This function can be performed by any unprivileged user.

  dosbox -c 'mount c /' -c 'type c:\path\to\input'

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  dosbox -c 'mount c /' -c 'type c:\path\to\input'

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  dosbox -c 'mount c /' -c 'type c:\path\to\input'

• Comment

  The file is copied to a readable location.

  Unprivileged

  This function can be performed by any unprivileged user.

  dosbox -c 'mount c /' -c 'copy c:\path\to\input c:\path\to\output' -c exit
  cat /path/to/OUTPUT

  Sudo

  This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.

  Remarks

  If there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....

  dosbox -c 'mount c /' -c 'copy c:\path\to\input c:\path\to\output' -c exit
  cat /path/to/OUTPUT

  SUID

  This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.

  dosbox -c 'mount c /' -c 'copy c:\path\to\input c:\path\to\output' -c exit
  cat /path/to/OUTPUT

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