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/*
* Copyright (c) International Business Machines Corp., 2006
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>
#include <stdlib.h>
#include <sys/errno.h>
#include <string.h>
#include "error.h"
#define MAXLINE 4096
static FILE *logfp = NULL;
static void err_doit(int, int, const char *, va_list);
int
read_procfile(FILE *fp_out, const char *procfile)
{
FILE *fp;
fp = fopen(procfile, "r");
if (!fp)
return -ENOENT;
while(!feof(fp)) {
int c = fgetc(fp);
if (c == EOF)
return 0;
if (putc(c, fp_out) == EOF)
return -EIO;
if (ferror(fp))
return -EIO;
}
return fclose(fp);
}
void
error_initlog(const char *logfile)
{
logfp = fopen(logfile, "a+");
read_procfile(logfp, "/proc/cpuinfo");
}
void
info_msg(const char *fmt, ...)
{
FILE* fpout;
char buf[MAXLINE + 1];
va_list ap;
int n;
fpout = stdout;
va_start(ap, fmt);
vsnprintf(buf, MAXLINE, fmt, ap);
n = strlen(buf);
strcat(buf, "\n");
fputs(buf, fpout);
fflush(fpout);
if (fpout != stdout)
fclose(fpout);
va_end(ap);
return;
}
void
__err_ret(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, LOG_INFO, fmt, ap);
va_end(ap);
return;
}
void
__err_sys(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, LOG_ERR, fmt, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
void
__err_msg(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(0, LOG_INFO, fmt, ap);
va_end(ap);
return;
}
void
__err_quit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(0, LOG_ERR, fmt, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
void
__err_dump(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, LOG_ERR, fmt, ap);
va_end(ap);
abort(); /* dump core and terminate */
exit(EXIT_FAILURE); /* shouldn't get here */
}
static void
err_doit(int errnoflag, int level __attribute__((unused)),
const char *fmt, va_list ap)
{
FILE* fpout;
int errno_save, n;
char buf[MAXLINE + 1];
fpout = stderr;
errno_save = errno; /* value caller might want printed */
vsnprintf(buf, MAXLINE, fmt, ap); /* safe */
n = strlen(buf);
if (errnoflag)
snprintf(buf + n, MAXLINE - n, ": %s", strerror(errno_save));
strcat(buf, "\n");
if (logfp) {
fputs(buf, logfp);
fflush(logfp);
}
fputs(buf, fpout);
fflush(fpout);
if (fpout != stderr)
fclose(fpout);
return;
}
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