- * Display (or store) a single MIME part using the specified command
- *
- * Arguments are:
- *
- * ct - The Content structure of the MIME part we wish to display
- * alternate - Set this to true if this is one part of a MIME
- * multipart/alternative part. Will suppress some errors and
- * will cause the function to return DONE instead of OK on
- * success.
- * cp - The command string to execute. Will be run through the
- * parser for %-escapes as described in mhshow(1).
- * cracked - If set, chdir() to this directory before executing the
- * command in "cp". Only used by mhstore(1).
- * fmt - A series of mh-format(5) instructions to execute if the
- * command string indicates a marker is desired. Can be NULL.
- *
- * Returns NOTOK if we could not display the part, DONE if alternate was
- * set and we could display the part, and OK if alternate was not set and
- * we could display the part.