[strace/strace] Add lirc ioctl decoding (PR #208)

[Dmitry V. Levin]

@ldv-alt commented on this pull request.



> +	value = 8;
+	do_ioctl(LIRC_SET_SEND_MODE, &value);
+	printf("ioctl(-1, %s, [LIRC_MODE_SCANCODE]) = %s\n",
+	       XLAT_STR(LIRC_SET_SEND_MODE), errstr);
+
+	value = 4;
+	do_ioctl(LIRC_SET_REC_MODE, &value);
+	printf("ioctl(-1, %s, [LIRC_MODE_MODE2]) = %s\n",
+	       XLAT_STR(LIRC_SET_REC_MODE), errstr);
+
+	value = 16;
+	do_ioctl(LIRC_SET_REC_MODE, &value);
+	printf("ioctl(-1, %s, [LIRC_MODE_LIRCCODE]) = %s\n",
+	       XLAT_STR(LIRC_SET_REC_MODE), errstr);
+
+	// read ioctl

OK, there is `ioctl(-1, LIRC_GET_FEATURES, 0)` in `INJECT_RETVAL` variant, it's probably enough.
At least the coverage test reports that all lines are covered.

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