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tests/libkeymap/libkeymap-test45.c
71 строка
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Alexey Gladkov
libkeymap: clamp compose uploads below MAX_DIACR
23 мар 2026, 17:46
Не верифицирован
23 мар 2026, 17:46
2ff8eac
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#include <stdio.h> #include <stdlib.h> #include <linux/kd.h> #include <linux/keyboard.h> #include <keymap.h> #include "contextP.h" #include "libcommon.h" #define TEST_CONSOLE_FD 101 static unsigned int diacr_calls; static int fake_ioctl(int fd, unsigned long req, uintptr_t arg) { struct kbdiacrsuc *kdu = (struct kbdiacrsuc *)arg; if (fd != TEST_CONSOLE_FD) kbd_error(EXIT_FAILURE, 0, "unexpected fd: %d", fd); if (req != KDSKBDIACRUC) kbd_error(EXIT_FAILURE, 0, "unexpected request: %lu", req); if (kdu->kb_cnt != MAX_DIACR - 1) kbd_error(EXIT_FAILURE, 0, "unexpected accent count: %u", kdu->kb_cnt); diacr_calls++; return 0; } int main(int argc KBD_ATTR_UNUSED, char **argv KBD_ATTR_UNUSED) { struct lk_ctx *ctx; struct lk_ops ops; struct lk_kbdiacr dcr; ctx = lk_init(); if (!ctx) kbd_error(EXIT_FAILURE, 0, "Unable to initialize structure by valid pointer"); lk_set_log_fn(ctx, NULL, NULL); if (lk_set_parser_flags(ctx, LK_FLAG_PREFER_UNICODE) != 0) kbd_error(EXIT_FAILURE, 0, "Unable to enable Unicode compose loading"); for (unsigned int i = 0; i < MAX_DIACR; i++) { dcr.diacr = 0x1000u + i; dcr.base = 0x1100u + i; dcr.result = 0x1200u + i; if (lk_add_diacr(ctx, (int) i, &dcr) != 0) kbd_error(EXIT_FAILURE, 0, "Unable to add compose entry %u", i); } ops = ctx->ops; ops.ioctl_fn = fake_ioctl; lk_set_ops(ctx, &ops); if (lk_load_keymap(ctx, TEST_CONSOLE_FD, K_UNICODE) != 0) kbd_error(EXIT_FAILURE, 0, "Unable to load compose definitions at MAX_DIACR boundary"); if (diacr_calls != 1U) kbd_error(EXIT_FAILURE, 0, "unexpected compose ioctl count: %u", diacr_calls); lk_free(ctx); return EXIT_SUCCESS; }