BIO_new, BIO_up_ref, BIO_free, BIO_vfree, BIO_free_all, BIO_set - BIO allocation
and freeing functions
BIO * BIO_new(const BIO_METHOD *type);
int BIO_set(BIO *a, const BIO_METHOD *type);
int BIO_up_ref(BIO *a);
int BIO_free(BIO *a);
void BIO_vfree(BIO *a);
void BIO_free_all(BIO *a);
function returns a new BIO using method type
increments the reference count associated with the BIO
frees up a single BIO, BIO_vfree()
also frees up a
single BIO but it does not return a value. If a
is NULL nothing is
done. Calling BIO_free()
may also have some effect on the underlying
I/O structure, for example it may close the file being referred to under
certain circumstances. For more details see the individual BIO_METHOD
frees up an entire BIO chain, it does not halt if an error
occurs freeing up an individual BIO in the chain. If a
is NULL nothing
returns a newly created BIO or NULL if the call fails.
return 1 for success
and 0 for failure.
do not return values.
is called on a BIO chain it will only free one BIO
resulting in a memory leak.
on a single BIO has the same effect as calling
on it other than the discarded return value.
was removed in OpenSSL 1.1.0 as BIO type is now opaque.
Create a memory BIO:
BIO *mem = BIO_new(BIO_s_mem());
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Licensed under the OpenSSL license (the "License"). You may not use
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