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20.2.3 Finding pathnames on the system ¶

Function: mbfl_file_find_tmpdir ¶

Function: mbfl_file_find_tmpdir PATHNAME ¶

Function: mbfl_file_find_tmpdir_var _RV ¶

Function: mbfl_file_find_tmpdir_var _RV PATHNAME ¶

Find a value for a temporary directory according to the following rules:

1. If PATHNAME is not used: it defaults to the current value of mbfl_option_TMPDIR.
2. If PATHNAME is not null and it is a directory and it is writable: it is accepted as value.
3. If PATHNAME is invalid: the value /tmp/$USER, where USER is the environment variable, is tried.
4. Finally the value /tmp is tried.

Echo the accepted value to stdout. Return true if a value is found, false otherwise.

The function variant _var stores the result in the variable _RV, rather than print it; Result variables.