Every caller path()s its arguments anyways, just simplify these and push
path() into moveifchanged(). This fixes a number of memory leaks in the
process since path() allocates memory, which we will now free().
While we're here, make sure we close from_fd/to_fd appropriately.
CID: 1471040, 1471714, 1472045, 1006907, 1006908
Reviewed by: emaste, imp
Differential Revision: https://reviews.freebsd.org/D38641
None of the callers check that the allocation in path() failed, so let's
check in path() and abort instead of failing.
Along those lines, none of the callers seem to acknowledge that the
returned string needs to be free()d -- let's do that as well. There are
a couple not addressed in this commit that will be addressed in a future
commit by pushing the path() call down into moveifchanged() instead and
freeing it properly there.
CID: 1505271, 1505250, 1505279
Reviewed by: emaste, imp
Use an std::stringstream instead. get_word() and get_quoted_word() both
return a buffer that's presumed to not need release, so solve this by
returning a new special configword type that holds a string or eof/eol
state. This cleans up caller checking for EOF/EOL to make it more
explicit what they're doing, at least in the EOL cases which previously
checked for NULL.
Sponsored by: Klara, Inc.
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D38276
