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/* $OpenBSD: csi.c,v 1.1 2018/06/02 17:40:33 jsing Exp $ */
/*
* Copyright (c) 2014, 2018 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 <string.h>
#include <csi.h>
#include "csi_internal.h"
void
csi_err_clear(struct csi_err *err)
{
err->code = 0;
err->errnum = 0;
free(err->msg);
err->msg = NULL;
}
static int
csi_err_vset(struct csi_err *err, u_int code, int errnum, const char *fmt, va_list ap)
{
char *errmsg = NULL;
int rv = -1;
csi_err_clear(err);
err->code = code;
err->errnum = errnum;
if (vasprintf(&errmsg, fmt, ap) == -1) {
errmsg = NULL;
goto err;
}
if (errnum == -1) {
err->msg = errmsg;
return (0);
}
if (asprintf(&err->msg, "%s: %s", errmsg, strerror(errnum)) == -1) {
err->msg = NULL;
goto err;
}
rv = 0;
err:
free(errmsg);
return (rv);
}
int
csi_err_set(struct csi_err *err, u_int code, const char *fmt, ...)
{
va_list ap;
int errnum, rv;
errnum = errno;
va_start(ap, fmt);
rv = csi_err_vset(err, code, errnum, fmt, ap);
va_end(ap);
return (rv);
}
int
csi_err_setx(struct csi_err *err, u_int code, const char *fmt, ...)
{
va_list ap;
int rv;
va_start(ap, fmt);
rv = csi_err_vset(err, code, -1, fmt, ap);
va_end(ap);
return (rv);
}
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