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asn1c/tests/tests-skeletons/check-PER-support.c

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#include <assert.h>
#include <per_support.h>
static void put(asn_per_outp_t *po, size_t length) {
fprintf(stderr, "put(%zd)\n", length);
do {
int need_eom = 123;
ssize_t may_write = uper_put_length(po, length, &need_eom);
fprintf(stderr, " put %zu\n", may_write);
assert(may_write >= 0);
assert((size_t)may_write <= length);
assert(need_eom != 123);
length -= may_write;
if(need_eom) {
assert(length == 0);
if(uper_put_length(po, 0, 0)) {
assert(!"Unreachable");
}
fprintf(stderr, " put EOM 0\n");
}
} while(length);
fprintf(stderr, "put(...) in %zu bits\n", po->nboff);
assert(po->nboff != 0);
assert(po->flushed_bytes == 0);
}
static size_t get(asn_per_outp_t *po) {
asn_bit_data_t data;
memset(&data, 0, sizeof(data));
data.buffer = po->tmpspace;
data.nboff = 0;
data.nbits = 8 * (po->buffer - po->tmpspace) + po->nboff;
fprintf(stderr, "get(): %s\n", asn_bit_data_string(&data));
size_t length = 0;
int repeat = 0;
do {
ssize_t n = uper_get_length(&data, -1, 0, &repeat);
fprintf(stderr, " get = %zu +%zd\n", length, n);
assert(n >= 0);
length += n;
} while(repeat);
fprintf(stderr, "get() = %zu\n", length);
return length;
}
static void
check_round_trip(size_t length) {
fprintf(stderr, "\nRound-trip for %zu\n", length);
asn_per_outp_t po;
memset(&po, 0, sizeof(po));
po.buffer = po.tmpspace;
po.nbits = 8 * sizeof(po.tmpspace);
put(&po, length);
size_t recovered = get(&po);
assert(recovered == length);
}
/*
* Checks that we can get the PER length that we have just put,
* and receive the same value.
*/
static void
check_round_trips() {
check_round_trip(0);
check_round_trip(1);
check_round_trip(127);
check_round_trip(128);
check_round_trip(129);
check_round_trip(255);
check_round_trip(256);
check_round_trip(65534);
check_round_trip(65535);
check_round_trip(65536);
check_round_trip(65538);
check_round_trip(128000);
for(size_t i = 1; i < 10; i++) {
check_round_trip(i*16384 - 1);
check_round_trip(i*16384);
check_round_trip(i*16384 + 1);
}
}
#define OK_UNREBASE(w, l, u, c) check_unrebase(__LINE__, 0, w, l, u, c)
#define NO_UNREBASE(w, l, u) check_unrebase(__LINE__, 1, w, l, u, 0)
static void
check_unrebase(int lineno, int expected_to_fail, unsigned long wire_value,
long lb, long ub, long control) {
fprintf(stderr, "%03d: Checking recovery of %lu (%ld..%ld)", lineno,
wire_value, lb, ub);
if(expected_to_fail) {
fprintf(stderr, " to FAIL\n");
} else {
fprintf(stderr, " into %ld\n", control);
}
long outcome;
int ret = per_long_range_unrebase(wire_value, lb, ub, &outcome);
if(ret == 0) {
assert(!expected_to_fail);
} else {
assert(expected_to_fail);
return;
}
assert(outcome == control);
}
#define OK_REBASE_ROUNDTRIP(v, l, u) \
check_range_rebase_round_trip(__LINE__, 0, v, l, u)
#define NO_REBASE_ROUNDTRIP(v, l, u) \
check_range_rebase_round_trip(__LINE__, 1, v, l, u)
static void
check_range_rebase_round_trip(int lineno, int expected_to_fail, long value,
long lb, long ub) {
unsigned long wire_value;
int ret;
fprintf(stderr, "%03d: Rebase %ld into (%ld..%ld) %s\n", lineno, value, lb,
ub, expected_to_fail ? "FAIL" : "OK");
ret = per_long_range_rebase(value, lb, ub, &wire_value);
if(ret != 0) {
if(expected_to_fail) {
return;
} else {
fprintf(stderr, "%03d: Original %ld (%ld..%ld) failed to rebase\n",
lineno, value, lb, ub);
assert(ret == 0);
}
} if(expected_to_fail) {
fprintf(
stderr,
"%03d: Original %ld (%ld..%ld) rebased to %lu where it shouldn't\n",
lineno, value, lb, ub, wire_value);
assert(expected_to_fail && ret == -1);
}
fprintf(stderr, "%03d: Recover %lu into (%ld..%ld)\n", lineno,
wire_value, lb, ub);
long recovered;
ret = per_long_range_unrebase(wire_value, lb, ub, &recovered);
if(ret != 0) {
fprintf(stderr, "%03d: Wire value %lu (%ld..%ld) failed to unrebase\n",
lineno, wire_value, lb, ub);
assert(ret == 0);
}
if(value != recovered) {
fprintf(stderr,
"%03d: Value %ld (%ld..%ld) failed to round-trip (=%ld)\n",
lineno, value, lb, ub, recovered);
assert(value == recovered);
}
}
static void
check_range_rebase() {
OK_UNREBASE(0U, 0, 0, 0);
NO_UNREBASE(1U, 0, 0);
OK_UNREBASE(0, LONG_MAX, LONG_MAX, LONG_MAX);
NO_UNREBASE(1, LONG_MAX, LONG_MAX);
OK_UNREBASE(0, LONG_MAX-1, LONG_MAX-1, LONG_MAX-1);
NO_UNREBASE(1, LONG_MAX-1, LONG_MAX-1);
OK_REBASE_ROUNDTRIP(0, 0, 0);
OK_REBASE_ROUNDTRIP(0, 0, 1);
OK_REBASE_ROUNDTRIP(1, 0, 1);
NO_REBASE_ROUNDTRIP(-1, 0, 0);
NO_REBASE_ROUNDTRIP(1, 0, 0);
NO_REBASE_ROUNDTRIP(LONG_MIN, 0, 0);
NO_REBASE_ROUNDTRIP(LONG_MAX, 0, 0);
OK_REBASE_ROUNDTRIP(-2, -2, -1);
OK_REBASE_ROUNDTRIP(-1, -2, -1);
NO_REBASE_ROUNDTRIP(-3, -2, -1);
NO_REBASE_ROUNDTRIP(0, -2, -1);
OK_REBASE_ROUNDTRIP(LONG_MAX, LONG_MAX, LONG_MAX);
NO_REBASE_ROUNDTRIP(LONG_MAX-1, LONG_MAX, LONG_MAX);
NO_REBASE_ROUNDTRIP(0, LONG_MAX, LONG_MAX);
NO_REBASE_ROUNDTRIP(LONG_MIN, LONG_MAX, LONG_MAX);
NO_REBASE_ROUNDTRIP(LONG_MIN+1, LONG_MAX, LONG_MAX);
OK_REBASE_ROUNDTRIP(LONG_MIN, LONG_MIN, LONG_MIN);
NO_REBASE_ROUNDTRIP(LONG_MIN+1, LONG_MIN, LONG_MIN);
NO_REBASE_ROUNDTRIP(0, LONG_MIN, LONG_MIN);
NO_REBASE_ROUNDTRIP(LONG_MAX-1, LONG_MIN, LONG_MIN);
NO_REBASE_ROUNDTRIP(LONG_MAX, LONG_MIN, LONG_MIN);
OK_REBASE_ROUNDTRIP(LONG_MAX-10, LONG_MAX-10, LONG_MAX-5);
OK_REBASE_ROUNDTRIP(LONG_MAX-5, LONG_MAX-10, LONG_MAX-5);
OK_REBASE_ROUNDTRIP(LONG_MAX-7, LONG_MAX-10, LONG_MAX-5);
NO_REBASE_ROUNDTRIP(LONG_MAX-4, LONG_MAX-10, LONG_MAX-5);
NO_REBASE_ROUNDTRIP(LONG_MIN, LONG_MIN+1, LONG_MIN+2);
OK_REBASE_ROUNDTRIP(LONG_MIN+1, LONG_MIN+1, LONG_MIN+2);
OK_REBASE_ROUNDTRIP(LONG_MIN+2, LONG_MIN+1, LONG_MIN+2);
NO_REBASE_ROUNDTRIP(LONG_MIN+3, LONG_MIN+1, LONG_MIN+2);
OK_REBASE_ROUNDTRIP(LONG_MIN, LONG_MIN, LONG_MIN+1);
OK_REBASE_ROUNDTRIP(LONG_MIN+1, LONG_MIN, 0);
OK_REBASE_ROUNDTRIP(LONG_MIN+1, LONG_MIN, LONG_MIN+1);
NO_REBASE_ROUNDTRIP(LONG_MIN+2, LONG_MIN, LONG_MIN+1);
OK_REBASE_ROUNDTRIP(-1, -1, 1);
OK_REBASE_ROUNDTRIP(0, -1, 1);
OK_REBASE_ROUNDTRIP(1, -1, 1);
NO_REBASE_ROUNDTRIP(-2, -1, 1);
NO_REBASE_ROUNDTRIP(2, -1, 1);
NO_REBASE_ROUNDTRIP(LONG_MIN, -1, 1);
NO_REBASE_ROUNDTRIP(LONG_MAX, -1, 1);
OK_REBASE_ROUNDTRIP(-1, LONG_MIN, LONG_MAX);
OK_REBASE_ROUNDTRIP(0, LONG_MIN, LONG_MAX);
OK_REBASE_ROUNDTRIP(1, LONG_MIN, LONG_MAX);
OK_REBASE_ROUNDTRIP(LONG_MIN, LONG_MIN, LONG_MAX);
OK_REBASE_ROUNDTRIP(LONG_MAX, LONG_MIN, LONG_MAX);
#ifndef EXPLICIT_32BIT
if(sizeof(long) == 8) {
OK_REBASE_ROUNDTRIP(0, LONG_MIN, LONG_MAX);
/* Too wide range, would not fit uint32_t */
OK_REBASE_ROUNDTRIP(INT32_MIN, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
OK_REBASE_ROUNDTRIP(INT32_MAX, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
OK_REBASE_ROUNDTRIP((long)INT32_MIN - 1, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
OK_REBASE_ROUNDTRIP((long)INT32_MAX + 1, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
NO_REBASE_ROUNDTRIP(LONG_MIN, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
NO_REBASE_ROUNDTRIP(LONG_MAX, (long)INT32_MIN - 1,
(long)INT32_MAX + 1);
NO_REBASE_ROUNDTRIP(((long)INT32_MIN)-1, INT32_MIN, INT32_MAX);
NO_REBASE_ROUNDTRIP(((long)INT32_MAX)+1, INT32_MIN, INT32_MAX);
NO_REBASE_ROUNDTRIP(LONG_MIN, INT32_MIN, INT32_MAX);
NO_REBASE_ROUNDTRIP(LONG_MAX, INT32_MIN, INT32_MAX);
}
#endif
OK_REBASE_ROUNDTRIP(-1, LONG_MIN + 1, LONG_MAX - 1);
OK_REBASE_ROUNDTRIP(0, LONG_MIN + 1, LONG_MAX - 1);
OK_REBASE_ROUNDTRIP(-1, LONG_MIN + 1, LONG_MAX - 1);
OK_REBASE_ROUNDTRIP(LONG_MIN + 1, LONG_MIN + 1, LONG_MAX - 1);
OK_REBASE_ROUNDTRIP(LONG_MAX - 1, LONG_MIN + 1, LONG_MAX - 1);
NO_REBASE_ROUNDTRIP(LONG_MIN, LONG_MIN + 1, LONG_MAX - 1);
NO_REBASE_ROUNDTRIP(LONG_MAX, LONG_MIN + 1, LONG_MAX - 1);
if(sizeof(long) == 8) {
NO_REBASE_ROUNDTRIP(LONG_MIN, INT32_MIN + 1, INT32_MAX - 1);
NO_REBASE_ROUNDTRIP(LONG_MAX, INT32_MIN + 1, INT32_MAX - 1);
}
}
int main() {
check_range_rebase();
check_round_trips();
}
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