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1d39620b34
This library is meant to be small and quick. It's based on WPACKET,
which was extended to support DER writing. The way it's used is a
bit unusual, as it's used to write the structures backward into a
given buffer. A typical quick call looks like this:
/*
* Fill in this structure:
*
* something ::= SEQUENCE {
* id OBJECT IDENTIFIER,
* x [0] INTEGER OPTIONAL,
* y [1] BOOLEAN OPTIONAL,
* n INTEGER
* }
*/
unsigned char buf[nnnn], *p = NULL;
size_t encoded_len = 0;
WPACKET pkt;
int ok;
ok = WPACKET_init_der(&pkt, buf, sizeof(buf)
&& DER_w_start_sequence(&pkt, -1)
&& DER_w_bn(&pkt, -1, bn)
&& DER_w_boolean(&pkt, 1, bool)
&& DER_w_precompiled(&pkt, -1, OID, sizeof(OID))
&& DER_w_end_sequence(&pkt, -1)
&& WPACKET_finish(&pkt)
&& WPACKET_get_total_written(&pkt, &encoded_len)
&& (p = WPACKET_get_curr(&pkt)) != NULL;
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11450)
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| .. | ||
| perl | ||
| add-depends.pl | ||
| build.info | ||
| cavs-to-evptest.pl | ||
| check-format-test-negatives.c | ||
| check-format-test-positives.c | ||
| check-format.pl | ||
| check-malloc-errs | ||
| ck_errf.pl | ||
| copy.pl | ||
| dofile.pl | ||
| echo.pl | ||
| engines.num | ||
| err-to-raise | ||
| find-doc-nits | ||
| find-unused-errs | ||
| fix-includes | ||
| fix-includes.sed | ||
| indent.pro | ||
| libcrypto.num | ||
| libssl.num | ||
| local_shlib.com.in | ||
| merge-err-lines | ||
| missingcrypto111.txt | ||
| missingcrypto.txt | ||
| missingmacro111.txt | ||
| missingmacro.txt | ||
| missingssl111.txt | ||
| missingssl.txt | ||
| mkbuildinf.pl | ||
| mkdef.pl | ||
| mkdir-p.pl | ||
| mkerr.pl | ||
| mknum.pl | ||
| mkpod2html.pl | ||
| mkrc.pl | ||
| mktar.sh | ||
| openssl-update-copyright | ||
| opensslwrap.sh | ||
| other.syms | ||
| providers.num | ||
| shlib_wrap.sh.in | ||
| su-filter.pl | ||
| unlocal_shlib.com.in | ||
| wrap.pl | ||