mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
53 lines
3 KiB
C
53 lines
3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "third_party/mbedtls/ssl_ciphersuites.h"
|
|
|
|
#define S32(S) (S[0] << 24 | S[1] << 16 | S[2] << 8 | S[3])
|
|
|
|
/**
|
|
* Returns ciphersuite info by IANA name.
|
|
*
|
|
* This API provides some wiggle room for naming, e.g.
|
|
*
|
|
* - ECDHE-ECDSA-AES256-GCM-SHA384 (preferred)
|
|
* - ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
|
* - TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
|
* - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (canonical)
|
|
*
|
|
* All of the above are acceptable names for 0xC02C.
|
|
*/
|
|
const mbedtls_ssl_ciphersuite_t *GetCipherSuite(const char *s) {
|
|
int i, j;
|
|
char b[50];
|
|
uint32_t w;
|
|
unsigned char c;
|
|
for (i = j = w = 0; (c = s[i++]);) {
|
|
if (c == '_') c = '-'; // _ → -
|
|
if ('a' <= c && c <= 'z') c -= 'a' - 'A'; // a-z → A-Z
|
|
if (c == '-' && w == S32("WITH")) j -= 5; // WITH- → -
|
|
if (w == S32("TLS-")) j -= 4; // TLS- →
|
|
w = w << 8 | c; // ------- ------
|
|
if (w == S32("AES-")) continue; // AES-XXX → AESXXX
|
|
if (w == S32("SHA1")) continue; // SHA1 → SHA
|
|
if (!(0 <= j && j + 1 < sizeof(b))) return 0;
|
|
b[j++] = c;
|
|
}
|
|
b[j++] = 0;
|
|
return mbedtls_ssl_ciphersuite_from_string(b);
|
|
}
|