A string.
A pathname designator.
A string, or nil
.
A function designator, or nil
.
A generalized boolean.
The function pem-read
is an interface to the PEM_read_bio_*
set of functions. See the manual entry for pem
for specifications of these functions.
thing-to-read defines which function is required. pem-read
concatenates thing-to-read with the string " PEM_read_bio_" to form the name of the pem
function to call.
filename specifies the file to load.
If pass-phrase is non-nil, it must be a string, which is passed to the pem
function. The default value of pass-phrase is nil
.
If callback is non-nil, it must be a function with signature:
callback maximum-length rwflag => pass-phrase
where maximum-length is an integer, rwflag is a boolean and pass-phrase is the pass-phrase to use. The default value of callback is nil
, but you cannot pass non-nil values for both pass-phrase and callback.
If it succeeds, pem-read
returns a foreign pointer to the structure that was returned by the pem
function. If pem-read
fails, if errorp is non-nil it signals an error, otherwise it returns nil
. The default value of errorp is nil
.
LispWorks User Guide and Reference Manual - 13 Feb 2015