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/*
error.h - some error functions to work with efivars error logger.
Copyright 2016 Red Hat, Inc. <pjones@redhat.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef EFIBOOTMGR_ERROR_H__
#define EFIBOOTMGR_ERROR_H__ 1
extern int verbose;
static inline void
__attribute__((__unused__))
error_reporter(void)
{
int rc = 1;
int saved_errno = errno;
for (int i = 0; rc > 0; i++) {
char *filename = NULL;
char *function = NULL;
int line = 0;
char *message = NULL;
int error = 0;
rc = efi_error_get(i, &filename, &function, &line, &message,
&error);
if (rc < 0) {
fprintf(stderr, "error fetching trace value");
exit(1);
}
if (rc == 0)
break;
fprintf(stderr, " %s:%d %s(): %s: %s\n",
filename, line, function, message, strerror(error));
}
errno = saved_errno;
}
static inline void
__attribute__((__unused__))
conditional_error_reporter(int show, int clear)
{
int saved_errno = errno;
fflush(NULL);
if (show) {
fprintf(stderr, "error trace:\n");
error_reporter();
}
if (clear) {
errno = 0;
efi_error_clear();
}
errno = saved_errno;
}
static inline void
__attribute__((__unused__))
cond_error(int test, int eval, const char *fmt, ...)
{
int saved_errno = errno;
if (!test)
return;
fflush(NULL);
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
errno = saved_errno;
fprintf(stderr, ": %m\n");
conditional_error_reporter(verbose >= 2, 0);
va_end(ap);
exit(eval);
}
static inline void
__attribute__((__unused__))
error(int eval, const char *fmt, ...)
{
int saved_errno = errno;
fflush(NULL);
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
errno = saved_errno;
fprintf(stderr, ": %m\n");
conditional_error_reporter(verbose >= 2, 0);
va_end(ap);
exit(eval);
}
static inline void
__attribute__((__unused__))
errorx(int eval, const char *fmt, ...)
{
fflush(NULL);
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
conditional_error_reporter(verbose >= 2, 1);
va_end(ap);
exit(eval);
}
static inline void
__attribute__((__unused__))
cond_warning(int test, const char *fmt, ...)
{
int saved_errno = errno;
if (!test)
return;
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
errno = saved_errno;
printf(": %m\n");
conditional_error_reporter(verbose >= 2, 1);
va_end(ap);
}
static inline void
__attribute__((__unused__))
warning(const char *fmt, ...)
{
int saved_errno = errno;
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
errno = saved_errno;
printf(": %m\n");
conditional_error_reporter(verbose >= 2, 1);
va_end(ap);
}
static inline void
__attribute__((__unused__))
warningx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
printf("\n");
conditional_error_reporter(verbose >= 2, 1);
va_end(ap);
}
#endif /* EFIBOOTMGR_ERROR_H__ */
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