search for: command_with_lots_of_output

...detect if there were any errors on stdout when the program exits. This is so we can fail correctly in out of disk space cases like: guestfish [...] > output However the atexit handler just checks that there was any error on stdout (using ferror). If a pipe command such as: ><fs> command_with_lots_of_output | head ran at any time during the session, the error flag would be set (because the underlying writes failed with EPIPE errors). So the commit first adds a test for ferror (stdout) after each command that we issue. This brings error handling closer to the point of failure, and so is generally a...