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/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by David A. Holland.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"
#include "array.h"
#include "place.h"
struct placefile {
struct place includedfrom;
char *dir;
char *name;
int depth;
bool fromsystemdir;
};
DECLARRAY(placefile, static UNUSED);
DEFARRAY(placefile, static);
static struct placefilearray placefiles;
static bool overall_failure;
static const char *myprogname;
////////////////////////////////////////////////////////////
// seenfiles
static
struct placefile *
placefile_create(const struct place *from, const char *name,
bool fromsystemdir)
{
struct placefile *pf;
const char *s;
size_t len;
pf = domalloc(sizeof(*pf));
pf->includedfrom = *from;
s = strrchr(name, '/');
len = (s == NULL) ? 0 : s - name;
pf->dir = dostrndup(name, len);
pf->name = dostrdup(name);
pf->fromsystemdir = fromsystemdir;
if (from->file != NULL) {
pf->depth = from->file->depth + 1;
} else {
pf->depth = 1;
}
return pf;
}
static
void
placefile_destroy(struct placefile *pf)
{
dostrfree(pf->name);
dofree(pf, sizeof(*pf));
}
DESTROYALL_ARRAY(placefile, );
const char *
place_getparsedir(const struct place *place)
{
if (place->file == NULL) {
return ".";
}
return place->file->dir;
}
const struct placefile *
place_addfile(const struct place *place, const char *file, bool issystem)
{
struct placefile *pf;
pf = placefile_create(place, file, issystem);
placefilearray_add(&placefiles, pf, NULL);
if (pf->depth > 120) {
complain(place, "Maximum include nesting depth exceeded");
die();
}
return pf;
}
////////////////////////////////////////////////////////////
// places
void
place_setnowhere(struct place *p)
{
p->type = P_NOWHERE;
p->file = NULL;
p->line = 0;
p->column = 0;
}
void
place_setbuiltin(struct place *p, unsigned num)
{
p->type = P_BUILTIN;
p->file = NULL;
p->line = num;
p->column = 1;
}
void
place_setcommandline(struct place *p, unsigned line, unsigned column)
{
p->type = P_COMMANDLINE;
p->file = NULL;
p->line = line;
p->column = column;
}
void
place_setfilestart(struct place *p, const struct placefile *pf)
{
p->type = P_FILE;
p->file = pf;
p->line = 1;
p->column = 1;
}
static
const char *
place_getname(const struct place *p)
{
switch (p->type) {
case P_NOWHERE: return "<nowhere>";
case P_BUILTIN: return "<built-in>";
case P_COMMANDLINE: return "<command-line>";
case P_FILE: return p->file->name;
}
assert(0);
return NULL;
}
static
void
place_printfrom(const struct place *p)
{
const struct place *from;
if (p->file == NULL) {
return;
}
from = &p->file->includedfrom;
if (from->type != P_NOWHERE) {
place_printfrom(from);
fprintf(stderr, "In file included from %s:%u:%u:\n",
place_getname(from), from->line, from->column);
}
}
////////////////////////////////////////////////////////////
// complaints
void
complain_init(const char *pn)
{
myprogname = pn;
}
void
complain(const struct place *p, const char *fmt, ...)
{
va_list ap;
if (p != NULL) {
place_printfrom(p);
fprintf(stderr, "%s:%u:%u: ", place_getname(p),
p->line, p->column);
} else {
fprintf(stderr, "%s: ", myprogname);
}
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
void
complain_fail(void)
{
overall_failure = true;
}
bool
complain_failed(void)
{
return overall_failure;
}
////////////////////////////////////////////////////////////
// module init and cleanup
void
place_init(void)
{
placefilearray_init(&placefiles);
}
void
place_cleanup(void)
{
placefilearray_destroyall(&placefiles);
placefilearray_cleanup(&placefiles);
}
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