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100 lines
2.2 KiB
C
Executable File
100 lines
2.2 KiB
C
Executable File
/* $OpenBSD: tls13_error.c,v 1.1 2020/01/20 13:10:37 jsing Exp $ */
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/*
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* Copyright (c) 2014,2019 Joel Sing <jsing@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* 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 WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <errno.h>
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#include "tls13_internal.h"
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void
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tls13_error_clear(struct tls13_error *error)
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{
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error->code = 0;
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error->subcode = 0;
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error->errnum = 0;
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error->file = NULL;
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error->line = 0;
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free(error->msg);
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error->msg = NULL;
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}
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static int
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tls13_error_vset(struct tls13_error *error, int code, int subcode, int errnum,
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const char *file, int line, const char *fmt, va_list ap)
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{
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char *errmsg = NULL;
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int rv = -1;
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tls13_error_clear(error);
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error->code = code;
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error->subcode = subcode;
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error->errnum = errnum;
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error->file = file;
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error->line = line;
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if (vasprintf(&errmsg, fmt, ap) == -1) {
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errmsg = NULL;
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goto err;
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}
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if (errnum == -1) {
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error->msg = errmsg;
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return 0;
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}
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if (asprintf(&error->msg, "%s: %s", errmsg, strerror(errnum)) == -1) {
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error->msg = NULL;
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goto err;
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}
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rv = 0;
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err:
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free(errmsg);
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return rv;
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}
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int
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tls13_error_set(struct tls13_error *error, int code, int subcode,
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const char *file, int line, const char *fmt, ...)
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{
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va_list ap;
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int errnum, rv;
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errnum = errno;
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va_start(ap, fmt);
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rv = tls13_error_vset(error, code, subcode, errnum, file, line, fmt, ap);
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va_end(ap);
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return (rv);
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}
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int
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tls13_error_setx(struct tls13_error *error, int code, int subcode,
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const char *file, int line, const char *fmt, ...)
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{
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va_list ap;
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int rv;
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va_start(ap, fmt);
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rv = tls13_error_vset(error, code, subcode, -1, file, line, fmt, ap);
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va_end(ap);
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return (rv);
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}
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