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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* errlog -- error logging facility for application programs
*/
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include "errlog.h"
/* Statics (this object is not threadable). */
static int Severity;
static struct location {
char *l_file;
int l_lineno;
char *l_tag;
char *l_line;
} Location;
/* Indentation */
static int Trace_indent;
/* XXX YES, its 80 spaces !@#$%^ */
static char Trace_padding[] =
" "
" ";
#define INDENT &Trace_padding[80-(Trace_indent*4)]
#define PRINTHDR INPUT
/*
* errlog -- simulate the syslog printf-like interface, but
* with a first argument oriented toward reporting
* application errors.
*/
/*VARARGS2*/
void
errlog(const int descriptor, const char *format, ...)
{
va_list ap;
va_start(ap, format);
if ((Severity < (descriptor & FATAL)) &&
((descriptor & FATAL) != FATAL)) {
/* We don't need to say/do anything. */
return;
}
/* Produce the message. */
(void) fflush(stdout); /* Synchronize streams. */
if ((descriptor & PRINTHDR) != 0) {
if (Location.l_file == NULL) {
(void) fprintf(stderr, "programmer error, logerr "
"told to print file, line number, "
"but file was not set.\n");
} else {
(void) fprintf(stderr, "\"%s\", line %d: ",
Location.l_file, Location.l_lineno);
}
}
/* Indent/outdent. */
if (descriptor & INDENTED) {
(void) fprintf(stderr, "%s", INDENT);
Trace_indent = (Trace_indent < 20)? Trace_indent + 1: 20;
} else if (descriptor & OUTDENTED) {
Trace_indent = (Trace_indent > 0)? Trace_indent - 1: 0;
(void) fprintf(stderr, "%s", INDENT);
} else {
(void) fprintf(stderr, "%s", INDENT);
}
/* Print the stuff we did all this for. */
(void) vfprintf(stderr, format, ap);
if ((descriptor & INPUT) && Location.l_line != NULL) {
/* Emit trailers. Formatting TBD. */
(void) putc('\n', stderr);
(void) fprintf(stderr, "\tLine was: %s %s",
Location.l_tag, Location.l_line);
}
(void) putc('\n', stderr);
(void) fflush(stderr); /* No-op on Solaris. */
if ((descriptor & FATAL) == FATAL) {
/* Say goodbye! */
exit(1);
}
va_end(ap);
}
/*
* seterrline -- tell errlog what the context of the error is.
*/
void
seterrline(const int lineno, const char *file,
const char *tag, const char *line)
{
Location.l_lineno = lineno;
Location.l_file = (char *)file;
Location.l_tag = (char *)tag;
Location.l_line = (char *)line;
}
/*
* seterrseverity -- set the severity/loudness variable.
* This is traditionally the ``Verbosity'' level.
*/
void
seterrseverity(const int loudness)
{
Severity = (loudness & FATAL);
}
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