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/*
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Daniel Stone <daniel@fooishbar.org>
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include "xkbcommon/xkbcommon.h"
#include "XKBcommonint.h"
#include "utils.h"
struct xkb_context {
int refcnt;
char **include_paths;
int num_include_paths;
int size_include_paths;
};
/**
* Append one directory to the context's include path.
*/
_X_EXPORT int
xkb_context_include_path_append(struct xkb_context *context, const char *path)
{
struct stat stat_buf;
int err;
if (context->size_include_paths <= context->num_include_paths) {
int new_size;
char **new_paths;
new_size = context->size_include_paths + 2;
new_paths = uTypedRecalloc(context->include_paths,
context->size_include_paths,
new_size,
char *);
if (!new_paths)
return 0;
context->include_paths = new_paths;
context->size_include_paths = new_size;
}
err = stat(path, &stat_buf);
if (err != 0)
return 0;
if (!S_ISDIR(stat_buf.st_mode))
return 0;
if (eaccess(path, R_OK | X_OK) != 0)
return 0;
context->include_paths[context->num_include_paths] = strdup(path);
if (!context->include_paths[context->num_include_paths])
return 0;
context->num_include_paths++;
return 1;
}
/**
* Append the default include directories to the context.
*/
_X_EXPORT int
xkb_context_include_path_append_default(struct xkb_context *context)
{
const char *home = getenv("HOME");
char *user_path;
int err;
(void) xkb_context_include_path_append(context, DFLT_XKB_CONFIG_ROOT);
home = getenv("HOME");
if (!home)
return 1;
err = asprintf(&user_path, "%s/.xkb", home);
if (err <= 0)
return 1;
(void) xkb_context_include_path_append(context, user_path);
free(user_path);
return 1;
}
/**
* Remove all entries in the context's include path.
*/
_X_EXPORT void
xkb_context_include_path_clear(struct xkb_context *context)
{
int i;
for (i = 0; i < context->num_include_paths; i++) {
free(context->include_paths[i]);
context->include_paths[i] = NULL;
}
free(context->include_paths);
context->include_paths = NULL;
context->num_include_paths = 0;
}
/**
* xkb_context_include_path_clear() + xkb_context_include_path_append_default()
*/
_X_EXPORT int
xkb_context_include_path_reset_defaults(struct xkb_context *context)
{
xkb_context_include_path_clear(context);
return xkb_context_include_path_append_default(context);
}
/**
* Returns the number of entries in the context's include path.
*/
_X_EXPORT unsigned int
xkb_context_num_include_paths(struct xkb_context *context)
{
return context->num_include_paths;
}
/**
* Returns the given entry in the context's include path, or NULL if an
* invalid index is passed.
*/
_X_EXPORT const char *
xkb_context_include_path_get(struct xkb_context *context, unsigned int idx)
{
if (idx >= xkb_context_num_include_paths(context))
return NULL;
return context->include_paths[idx];
}
/**
* Take a new reference on the context.
*/
_X_EXPORT struct xkb_context *
xkb_context_ref(struct xkb_context *context)
{
context->refcnt++;
return context;
}
/**
* Drop an existing reference on the context, and free it if the refcnt is
* now 0.
*/
_X_EXPORT void
xkb_context_unref(struct xkb_context *context)
{
if (--context->refcnt > 0)
return;
xkb_context_include_path_clear(context);
free(context);
}
/**
* Create a new context.
*/
_X_EXPORT struct xkb_context *
xkb_context_new(void)
{
struct xkb_context *context = calloc(1, sizeof(*context));
if (!context)
return NULL;
context->refcnt = 1;
if (!xkb_context_include_path_append_default(context)) {
xkb_context_unref(context);
return NULL;
}
return context;
}
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