| /* |
| * Copyright © 2012 Intel Corporation |
| * Copyright © 2012 Ran Benita |
| * |
| * 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 <errno.h> |
| #include <unistd.h> |
| |
| #include "xkbcommon/xkbcommon.h" |
| #include "utils.h" |
| #include "context.h" |
| |
| /** |
| * Append one directory to the context's include path. |
| */ |
| XKB_EXPORT int |
| xkb_context_include_path_append(struct xkb_context *ctx, const char *path) |
| { |
| struct stat stat_buf; |
| int err; |
| char *tmp; |
| |
| tmp = strdup(path); |
| if (!tmp) |
| goto err; |
| |
| err = stat(path, &stat_buf); |
| if (err != 0) |
| goto err; |
| if (!S_ISDIR(stat_buf.st_mode)) |
| goto err; |
| |
| #if defined(HAVE_EACCESS) |
| if (eaccess(path, R_OK | X_OK) != 0) |
| goto err; |
| #elif defined(HAVE_EUIDACCESS) |
| if (euidaccess(path, R_OK | X_OK) != 0) |
| goto err; |
| #endif |
| |
| darray_append(ctx->includes, tmp); |
| return 1; |
| |
| err: |
| darray_append(ctx->failed_includes, tmp); |
| return 0; |
| } |
| |
| /** |
| * Append the default include directories to the context. |
| */ |
| XKB_EXPORT int |
| xkb_context_include_path_append_default(struct xkb_context *ctx) |
| { |
| const char *home; |
| char *user_path; |
| int err; |
| int ret = 0; |
| |
| ret |= xkb_context_include_path_append(ctx, DFLT_XKB_CONFIG_ROOT); |
| |
| home = secure_getenv("HOME"); |
| if (!home) |
| return ret; |
| err = asprintf(&user_path, "%s/.xkb", home); |
| if (err <= 0) |
| return ret; |
| ret |= xkb_context_include_path_append(ctx, user_path); |
| free(user_path); |
| |
| return ret; |
| } |
| |
| /** |
| * Remove all entries in the context's include path. |
| */ |
| XKB_EXPORT void |
| xkb_context_include_path_clear(struct xkb_context *ctx) |
| { |
| char **path; |
| |
| darray_foreach(path, ctx->includes) |
| free(*path); |
| darray_free(ctx->includes); |
| |
| darray_foreach(path, ctx->failed_includes) |
| free(*path); |
| darray_free(ctx->failed_includes); |
| } |
| |
| /** |
| * xkb_context_include_path_clear() + xkb_context_include_path_append_default() |
| */ |
| XKB_EXPORT int |
| xkb_context_include_path_reset_defaults(struct xkb_context *ctx) |
| { |
| xkb_context_include_path_clear(ctx); |
| return xkb_context_include_path_append_default(ctx); |
| } |
| |
| /** |
| * Returns the number of entries in the context's include path. |
| */ |
| XKB_EXPORT unsigned int |
| xkb_context_num_include_paths(struct xkb_context *ctx) |
| { |
| return darray_size(ctx->includes); |
| } |
| |
| /** |
| * Returns the given entry in the context's include path, or NULL if an |
| * invalid index is passed. |
| */ |
| XKB_EXPORT const char * |
| xkb_context_include_path_get(struct xkb_context *ctx, unsigned int idx) |
| { |
| if (idx >= xkb_context_num_include_paths(ctx)) |
| return NULL; |
| |
| return darray_item(ctx->includes, idx); |
| } |
| |
| /** |
| * Take a new reference on the context. |
| */ |
| XKB_EXPORT struct xkb_context * |
| xkb_context_ref(struct xkb_context *ctx) |
| { |
| ctx->refcnt++; |
| return ctx; |
| } |
| |
| /** |
| * Drop an existing reference on the context, and free it if the refcnt is |
| * now 0. |
| */ |
| XKB_EXPORT void |
| xkb_context_unref(struct xkb_context *ctx) |
| { |
| if (!ctx || --ctx->refcnt > 0) |
| return; |
| |
| xkb_context_include_path_clear(ctx); |
| atom_table_free(ctx->atom_table); |
| free(ctx); |
| } |
| |
| static const char * |
| log_level_to_prefix(enum xkb_log_level level) |
| { |
| switch (level) { |
| case XKB_LOG_LEVEL_DEBUG: |
| return "xkbcommon: DEBUG: "; |
| case XKB_LOG_LEVEL_INFO: |
| return "xkbcommon: INFO: "; |
| case XKB_LOG_LEVEL_WARNING: |
| return "xkbcommon: WARNING: "; |
| case XKB_LOG_LEVEL_ERROR: |
| return "xkbcommon: ERROR: "; |
| case XKB_LOG_LEVEL_CRITICAL: |
| return "xkbcommon: CRITICAL: "; |
| default: |
| return NULL; |
| } |
| } |
| |
| ATTR_PRINTF(3, 0) static void |
| default_log_fn(struct xkb_context *ctx, enum xkb_log_level level, |
| const char *fmt, va_list args) |
| { |
| const char *prefix = log_level_to_prefix(level); |
| |
| if (prefix) |
| fprintf(stderr, "%s", prefix); |
| vfprintf(stderr, fmt, args); |
| } |
| |
| static enum xkb_log_level |
| log_level(const char *level) { |
| char *endptr; |
| enum xkb_log_level lvl; |
| |
| errno = 0; |
| lvl = strtol(level, &endptr, 10); |
| if (errno == 0 && (endptr[0] == '\0' || is_space(endptr[0]))) |
| return lvl; |
| if (istreq_prefix("crit", level)) |
| return XKB_LOG_LEVEL_CRITICAL; |
| if (istreq_prefix("err", level)) |
| return XKB_LOG_LEVEL_ERROR; |
| if (istreq_prefix("warn", level)) |
| return XKB_LOG_LEVEL_WARNING; |
| if (istreq_prefix("info", level)) |
| return XKB_LOG_LEVEL_INFO; |
| if (istreq_prefix("debug", level) || istreq_prefix("dbg", level)) |
| return XKB_LOG_LEVEL_DEBUG; |
| |
| return XKB_LOG_LEVEL_ERROR; |
| } |
| |
| static int |
| log_verbosity(const char *verbosity) { |
| char *endptr; |
| int v; |
| |
| errno = 0; |
| v = strtol(verbosity, &endptr, 10); |
| if (errno == 0) |
| return v; |
| |
| return 0; |
| } |
| |
| /** |
| * Create a new context. |
| */ |
| XKB_EXPORT struct xkb_context * |
| xkb_context_new(enum xkb_context_flags flags) |
| { |
| const char *env; |
| struct xkb_context *ctx = calloc(1, sizeof(*ctx)); |
| |
| if (!ctx) |
| return NULL; |
| |
| ctx->refcnt = 1; |
| ctx->log_fn = default_log_fn; |
| ctx->log_level = XKB_LOG_LEVEL_ERROR; |
| ctx->log_verbosity = 0; |
| |
| /* Environment overwrites defaults. */ |
| env = secure_getenv("XKB_LOG_LEVEL"); |
| if (env) |
| xkb_context_set_log_level(ctx, log_level(env)); |
| |
| env = secure_getenv("XKB_LOG_VERBOSITY"); |
| if (env) |
| xkb_context_set_log_verbosity(ctx, log_verbosity(env)); |
| |
| if (!(flags & XKB_CONTEXT_NO_DEFAULT_INCLUDES) && |
| !xkb_context_include_path_append_default(ctx)) { |
| log_err(ctx, "failed to add default include path %s\n", |
| DFLT_XKB_CONFIG_ROOT); |
| xkb_context_unref(ctx); |
| return NULL; |
| } |
| |
| ctx->use_environment_names = !(flags & XKB_CONTEXT_NO_ENVIRONMENT_NAMES); |
| |
| ctx->atom_table = atom_table_new(); |
| if (!ctx->atom_table) { |
| xkb_context_unref(ctx); |
| return NULL; |
| } |
| |
| return ctx; |
| } |
| |
| XKB_EXPORT void |
| xkb_context_set_log_fn(struct xkb_context *ctx, |
| void (*log_fn)(struct xkb_context *ctx, |
| enum xkb_log_level level, |
| const char *fmt, va_list args)) |
| { |
| ctx->log_fn = (log_fn ? log_fn : default_log_fn); |
| } |
| |
| XKB_EXPORT enum xkb_log_level |
| xkb_context_get_log_level(struct xkb_context *ctx) |
| { |
| return ctx->log_level; |
| } |
| |
| XKB_EXPORT void |
| xkb_context_set_log_level(struct xkb_context *ctx, enum xkb_log_level level) |
| { |
| ctx->log_level = level; |
| } |
| |
| XKB_EXPORT int |
| xkb_context_get_log_verbosity(struct xkb_context *ctx) |
| { |
| return ctx->log_verbosity; |
| } |
| |
| XKB_EXPORT void |
| xkb_context_set_log_verbosity(struct xkb_context *ctx, int verbosity) |
| { |
| ctx->log_verbosity = verbosity; |
| } |
| |
| XKB_EXPORT void * |
| xkb_context_get_user_data(struct xkb_context *ctx) |
| { |
| if (ctx) |
| return ctx->user_data; |
| return NULL; |
| } |
| |
| XKB_EXPORT void |
| xkb_context_set_user_data(struct xkb_context *ctx, void *user_data) |
| { |
| ctx->user_data = user_data; |
| } |