9  *  Usage: valid-adjtimex
12  *	$ gcc valid-adjtimex.c -o valid-adjtimex -lrt
43 static int clock_adjtime(clockid_t id, struct timex *tx)  in clock_adjtime()  argument
45 	return syscall(__NR_clock_adjtime, id, tx);  in clock_adjtime()
52 	struct timex tx;  in clear_time_state()  local
55 	tx.modes = ADJ_STATUS;  in clear_time_state()
56 	tx.status = 0;  in clear_time_state()
57 	ret = adjtimex(&tx);  in clear_time_state()
66 	-499<<16,
67 	-450<<16,
68 	-400<<16,
69 	-350<<16,
70 	-300<<16,
71 	-250<<16,
72 	-200<<16,
73 	-150<<16,
74 	-100<<16,
75 	-75<<16,
76 	-50<<16,
77 	-25<<16,
78 	-10<<16,
79 	-5<<16,
80 	-1<<16,
81 	-1000,
100 	-1000<<16,
101 	-550<<16,
107 #define LONG_MIN (-LONG_MAX - 1)
116 	struct timex tx;  in validate_freq()  local
122 	memset(&tx, 0, sizeof(struct timex));  in validate_freq()
128 		tx.modes = ADJ_FREQUENCY;  in validate_freq()
129 		tx.freq = valid_freq[i];  in validate_freq()
131 		ret = adjtimex(&tx);  in validate_freq()
134 			printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",  in validate_freq()
136 			pass = -1;  in validate_freq()
139 		tx.modes = 0;  in validate_freq()
140 		ret = adjtimex(&tx);  in validate_freq()
141 		if (tx.freq != valid_freq[i]) {  in validate_freq()
143 					tx.freq, valid_freq[i]);  in validate_freq()
147 		tx.modes = ADJ_FREQUENCY;  in validate_freq()
148 		tx.freq = outofrange_freq[i];  in validate_freq()
150 		ret = adjtimex(&tx);  in validate_freq()
153 			printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",  in validate_freq()
155 			pass = -1;  in validate_freq()
158 		tx.modes = 0;  in validate_freq()
159 		ret = adjtimex(&tx);  in validate_freq()
160 		if (tx.freq == outofrange_freq[i]) {  in validate_freq()
163 					tx.freq);  in validate_freq()
164 			pass = -1;  in validate_freq()
172 			tx.modes = ADJ_FREQUENCY;  in validate_freq()
173 			tx.freq = invalid_freq[i];  in validate_freq()
174 			ret = adjtimex(&tx);  in validate_freq()
179 				pass = -1;  in validate_freq()
188 	tx.modes = ADJ_FREQUENCY;  in validate_freq()
189 	tx.freq = 0;  in validate_freq()
190 	ret = adjtimex(&tx);  in validate_freq()
209 			tmx.time.tv_sec -= 1;  in set_offset()
217 			tmx.time.tv_sec -= 1;  in set_offset()
224 		printf("(sec: %ld  usec: %ld) ", tmx.time.tv_sec, tmx.time.tv_usec);  in set_offset()
226 		return -1;  in set_offset()
231 int set_bad_offset(long sec, long usec, int use_nano)  in set_bad_offset()  argument
240 	tmx.time.tv_sec = sec;  in set_bad_offset()
244 		printf("Invalid (sec: %ld  usec: %ld) did not fail! ", tmx.time.tv_sec, tmx.time.tv_usec);  in set_bad_offset()
246 		return -1;  in set_bad_offset()
257 	if (set_offset(NSEC_PER_SEC - 1, 1))  in validate_set_offset()
258 		return -1;  in validate_set_offset()
260 	if (set_offset(-NSEC_PER_SEC + 1, 1))  in validate_set_offset()
261 		return -1;  in validate_set_offset()
263 	if (set_offset(-NSEC_PER_SEC - 1, 1))  in validate_set_offset()
264 		return -1;  in validate_set_offset()
267 		return -1;  in validate_set_offset()
269 	if (set_offset(-5 * NSEC_PER_SEC, 1))  in validate_set_offset()
270 		return -1;  in validate_set_offset()
273 		return -1;  in validate_set_offset()
275 	if (set_offset(-5 * NSEC_PER_SEC - NSEC_PER_SEC / 2, 1))  in validate_set_offset()
276 		return -1;  in validate_set_offset()
278 	if (set_offset(USEC_PER_SEC - 1, 0))  in validate_set_offset()
279 		return -1;  in validate_set_offset()
281 	if (set_offset(-USEC_PER_SEC + 1, 0))  in validate_set_offset()
282 		return -1;  in validate_set_offset()
284 	if (set_offset(-USEC_PER_SEC - 1, 0))  in validate_set_offset()
285 		return -1;  in validate_set_offset()
288 		return -1;  in validate_set_offset()
290 	if (set_offset(-5 * USEC_PER_SEC, 0))  in validate_set_offset()
291 		return -1;  in validate_set_offset()
294 		return -1;  in validate_set_offset()
296 	if (set_offset(-5 * USEC_PER_SEC - USEC_PER_SEC / 2, 0))  in validate_set_offset()
297 		return -1;  in validate_set_offset()
300 	if (set_bad_offset(0, -1, 1))  in validate_set_offset()
301 		return -1;  in validate_set_offset()
302 	if (set_bad_offset(0, -1, 0))  in validate_set_offset()
303 		return -1;  in validate_set_offset()
305 		return -1;  in validate_set_offset()
307 		return -1;  in validate_set_offset()
309 		return -1;  in validate_set_offset()
311 		return -1;  in validate_set_offset()
312 	if (set_bad_offset(0, -NSEC_PER_SEC, 1))  in validate_set_offset()
313 		return -1;  in validate_set_offset()
314 	if (set_bad_offset(0, -USEC_PER_SEC, 0))  in validate_set_offset()
315 		return -1;  in validate_set_offset()