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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009 Sean Nelson <audiohacked@gmail.com>
* Copyright (C) 2011 Carl-Daniel Hailfinger
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include "flash.h"
#ifndef STANDALONE
static FILE *logfile = NULL;
int close_logfile(void)
{
if (!logfile)
return 0;
/* No need to call fflush() explicitly, fclose() already does that. */
if (fclose(logfile)) {
/* fclose returned an error. Stop writing to be safe. */
logfile = NULL;
msg_perr("Closing the log file returned error %s\n", strerror(errno));
return 1;
}
logfile = NULL;
return 0;
}
int open_logfile(const char * const filename)
{
if (!filename) {
msg_gerr("No filename specified.\n");
return 1;
}
if ((logfile = fopen(filename, "w")) == NULL) {
perror(filename);
return 1;
}
return 0;
}
void start_logging(void)
{
enum msglevel oldverbose_screen = verbose_screen;
/* Shut up the console. */
verbose_screen = MSG_ERROR;
print_version();
verbose_screen = oldverbose_screen;
}
#endif /* !STANDALONE */
/* Please note that level is the verbosity, not the importance of the message. */
int print(enum msglevel level, const char *fmt, ...)
{
va_list ap;
int ret = 0;
FILE *output_type = stdout;
if (level == MSG_ERROR)
output_type = stderr;
if (level <= verbose_screen) {
va_start(ap, fmt);
ret = vfprintf(output_type, fmt, ap);
va_end(ap);
/* msg_*spew usually happens inside chip accessors in possibly
* time-critical operations. Don't slow them down by flushing.
*/
if (level != MSG_SPEW)
fflush(output_type);
}
#ifndef STANDALONE
if ((level <= verbose_logfile) && logfile) {
va_start(ap, fmt);
ret = vfprintf(logfile, fmt, ap);
va_end(ap);
if (level != MSG_SPEW)
fflush(logfile);
}
#endif /* !STANDALONE */
return ret;
}
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