mirror of
https://github.com/systemd/systemd
synced 2024-10-06 16:21:34 +00:00
81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "dlfcn-util.h"
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#include "log.h"
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#include "macro.h"
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#include "string-util.h"
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#include "xkbcommon-util.h"
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#if HAVE_XKBCOMMON
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static void *xkbcommon_dl = NULL;
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struct xkb_context* (*sym_xkb_context_new)(enum xkb_context_flags flags);
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void (*sym_xkb_context_unref)(struct xkb_context *context);
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void (*sym_xkb_context_set_log_fn)(
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struct xkb_context *context,
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void (*log_fn)(
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struct xkb_context *context,
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enum xkb_log_level level,
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const char *format,
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va_list args));
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struct xkb_keymap* (*sym_xkb_keymap_new_from_names)(
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struct xkb_context *context,
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const struct xkb_rule_names *names,
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enum xkb_keymap_compile_flags flags);
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void (*sym_xkb_keymap_unref)(struct xkb_keymap *keymap);
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static int dlopen_xkbcommon(void) {
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return dlopen_many_sym_or_warn(
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&xkbcommon_dl, "libxkbcommon.so.0", LOG_DEBUG,
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DLSYM_ARG(xkb_context_new),
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DLSYM_ARG(xkb_context_unref),
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DLSYM_ARG(xkb_context_set_log_fn),
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DLSYM_ARG(xkb_keymap_new_from_names),
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DLSYM_ARG(xkb_keymap_unref));
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}
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_printf_(3, 0)
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static void log_xkb(struct xkb_context *ctx, enum xkb_log_level lvl, const char *format, va_list args) {
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const char *fmt;
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fmt = strjoina("libxkbcommon: ", format);
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DISABLE_WARNING_FORMAT_NONLITERAL;
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log_internalv(LOG_DEBUG, 0, PROJECT_FILE, __LINE__, __func__, fmt, args);
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REENABLE_WARNING;
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}
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DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(struct xkb_context *, sym_xkb_context_unref, NULL);
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DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(struct xkb_keymap *, sym_xkb_keymap_unref, NULL);
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int verify_xkb_rmlvo(const char *model, const char *layout, const char *variant, const char *options) {
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_cleanup_(sym_xkb_context_unrefp) struct xkb_context *ctx = NULL;
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_cleanup_(sym_xkb_keymap_unrefp) struct xkb_keymap *km = NULL;
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const struct xkb_rule_names rmlvo = {
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.model = model,
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.layout = layout,
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.variant = variant,
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.options = options,
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};
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int r;
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/* Compile keymap from RMLVO information to check out its validity */
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r = dlopen_xkbcommon();
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if (r < 0)
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return r;
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ctx = sym_xkb_context_new(XKB_CONTEXT_NO_ENVIRONMENT_NAMES);
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if (!ctx)
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return -ENOMEM;
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sym_xkb_context_set_log_fn(ctx, log_xkb);
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km = sym_xkb_keymap_new_from_names(ctx, &rmlvo, XKB_KEYMAP_COMPILE_NO_FLAGS);
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if (!km)
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return -EINVAL;
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return 0;
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}
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#endif
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