On Wed, 2017-05-17 at 16:59 +0200, Sebastien Buisson wrote: > 2017-05-16 22:40 GMT+02:00 Stephen Smalley <[email protected]>: > > > + strcpy(*brief, policydb.policybrief); > > > + /* *len is the length of the output string */ > > > + *len = policybrief_len - 1; > > > > Is there a particular reason to not just return policybrief_len > > here as > > well, for consistency in the interface? How do you intend to use > > this > > value in the caller? > > As called in the other patch to expose policy brief via selinuxfs > (sel_read_policybrief), the intent is to provide the caller with the > length of the string returned. > Or should I set *len to policy brief_len here, and just make the > caller aware that the returned length is in fact the length of the > buffer (i.e. including terminating NUL byte)?
Looking at the caller usage in the other patch, I guess it makes sense in its current form.
