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/* $OpenBSD: tls13_error.c,v 1.1 2020/01/20 13:10:37 jsing Exp $ */
/*
* Copyright (c) 2014,2019 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and 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 <errno.h>
#include "tls13_internal.h"
void
tls13_error_clear(struct tls13_error *error)
{
error->code = 0;
error->subcode = 0;
error->errnum = 0;
error->file = NULL;
error->line = 0;
free(error->msg);
error->msg = NULL;
}
static int
tls13_error_vset(struct tls13_error *error, int code, int subcode, int errnum,
const char *file, int line, const char *fmt, va_list ap)
{
char *errmsg = NULL;
int rv = -1;
tls13_error_clear(error);
error->code = code;
error->subcode = subcode;
error->errnum = errnum;
error->file = file;
error->line = line;
if (vasprintf(&errmsg, fmt, ap) == -1) {
errmsg = NULL;
goto err;
}
if (errnum == -1) {
error->msg = errmsg;
return 0;
}
if (asprintf(&error->msg, "%s: %s", errmsg, strerror(errnum)) == -1) {
error->msg = NULL;
goto err;
}
rv = 0;
err:
free(errmsg);
return rv;
}
int
tls13_error_set(struct tls13_error *error, int code, int subcode,
const char *file, int line, const char *fmt, ...)
{
va_list ap;
int errnum, rv;
errnum = errno;
va_start(ap, fmt);
rv = tls13_error_vset(error, code, subcode, errnum, file, line, fmt, ap);
va_end(ap);
return (rv);
}
int
tls13_error_setx(struct tls13_error *error, int code, int subcode,
const char *file, int line, const char *fmt, ...)
{
va_list ap;
int rv;
va_start(ap, fmt);
rv = tls13_error_vset(error, code, subcode, -1, file, line, fmt, ap);
va_end(ap);
return (rv);
}
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