mirror of
https://github.com/jart/cosmopolitan.git
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5144c22189
- Use nullness checks when calling weakly linked functions. - Avoid typedef for reasons described in Linux Kernel style guide. - Avoid enum in in Windows headers. Earlier in Cosmo's history all one hundred files in libc/nt/enum/ used to be enums and it resulted in gigabytes of DWARF data almost as large as everything else in the codebase combined. - Bitfields aren't our friends. They have frequent ABI breakages, inconsistent arithmetic across compilers, and different endianness between cpus. Compiler authors also haven't invested much roi into making bit fields go fast so they produce poor assembly. - Use memccpy() instead of strncpy() or snprintf() for length-bounded copying of C strings. strncpy() is a misunderstood function and snprintf() is awesome but memccpy() deserves more love.
84 lines
4.3 KiB
C
84 lines
4.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/fmt/itoa.h"
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#include "third_party/mbedtls/iana.h"
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#include "third_party/mbedtls/ssl.h"
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/**
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* Returns SSL fatal alert description.
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* @see RFC5246 §7.2
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*/
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const char *GetAlertDescription(unsigned char x) {
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static char buf[21];
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switch (x) {
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case MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY: /* 0 */
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return "close_notify";
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case MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE: /* 10 */
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return "unexpected_message";
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case MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC: /* 20 */
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return "bad_record_mac";
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case MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED: /* 21 */
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return "decryption_failed";
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case MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW: /* 22 */
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return "record_overflow";
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case MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE: /* 30 */
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return "decompression_failure";
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case MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE: /* 40 */
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return "handshake_failure";
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case MBEDTLS_SSL_ALERT_MSG_NO_CERT: /* 41 */
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return "no_cert";
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case MBEDTLS_SSL_ALERT_MSG_BAD_CERT: /* 42 */
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return "bad_cert";
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case MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT: /* 43 */
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return "unsupported_cert";
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case MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED: /* 44 */
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return "cert_revoked";
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case MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED: /* 45 */
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return "cert_expired";
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case MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN: /* 46 */
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return "cert_unknown";
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case MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER: /* 47 */
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return "illegal_parameter";
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case MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA: /* 48 */
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return "unknown_ca";
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case MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED: /* 49 */
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return "access_denied";
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case MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR: /* 50 */
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return "decode_error";
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case MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR: /* 51 */
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return "decrypt_error";
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case MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION: /* 60 */
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return "export_restriction";
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case MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION: /* 70 */
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return "protocol_version";
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case MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY: /* 71 */
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return "insufficient_security";
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case MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR: /* 80 */
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return "internal_error";
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case MBEDTLS_SSL_ALERT_MSG_USER_CANCELED: /* 90 */
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return "user_canceled";
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case MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION: /* 100 */
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return "no_renegotiation";
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case MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT: /* 110 */
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return "unsupported_extension";
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default:
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int64toarray_radix10(x, buf);
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return buf;
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}
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}
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