NAME
EVP_CIPHER_do_all,
EVP_CIPHER_do_all_sorted,
EVP_MD_do_all,
EVP_MD_do_all_sorted —
iterate over lookup tables for ciphers
and digests
SYNOPSIS
#include
<openssl/evp.h>
void
EVP_CIPHER_do_all(void (*fn)(const
EVP_CIPHER *cipher, const char *from, const char *to, void *arg),
void *arg);
void
EVP_CIPHER_do_all_sorted(void
(*fn)(const EVP_CIPHER *cipher, const char *from, const char *to, void
*arg), void *arg);
void
EVP_MD_do_all(void (*fn)(const EVP_MD
*md, const char *from, const char *to, void *arg),
void *arg);
void
EVP_MD_do_all_sorted(void (*fn)(const
EVP_MD *md, const char *from, const char *to, void *arg),
void *arg);
DESCRIPTION
EVP_CIPHER_do_all()
calls fn on every entry of the global table of cipher
names and aliases. For a cipher name entry, fn is
called with a non-NULL cipher, its non-NULL cipher
name from, a NULL to, and the
arg pointer. For an alias entry,
fn is called with a NULL cipher,
its alias from, the cipher name that alias points
to, and the arg pointer.
EVP_CIPHER_do_all_sorted()
is similar, except that it processes the cipher names and aliases in
lexicographic order of their from names as determined
by strcmp(3).
EVP_MD_do_all()
calls fn on every entry of the global table of digest
names and aliases. For a digest name entry, fn is
called with a non-NULL md, its non-NULL digest name
from, a NULL to, and the
arg pointer. For an alias entry,
fn is called with a NULL md, its
alias from, the digest name that alias points
to, and the arg pointer.
EVP_MD_do_all_sorted()
is similar, except that it processes the digest names and aliases in
lexicographic order of their from names as determined
by strcmp(3).
SEE ALSO
HISTORY
These functions first appeared in OpenSSL 1.0.0 and have been available since OpenBSD 4.9.
BUGS
EVP_CIPHER_do_all_sorted() and
EVP_MD_do_all_sorted() are wrappers of
OBJ_NAME_do_all_sorted(3). In particular, if memory
allocation fails, they do nothing at all without telling the caller about
the problem.