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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <osmocom/core/application.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/logging.h>
#include <osmocom/gsm/apn.h>
static void apn_round_trip(const uint8_t *input, size_t len, const char *wanted_output)
{
char output[len ? len : 1];
uint8_t encoded[len + 50];
char *out_str;
int enc_len;
/* decode and verify we have what we want */
out_str = osmo_apn_to_str(output, input, len);
OSMO_ASSERT(out_str);
OSMO_ASSERT(out_str == &output[0]);
OSMO_ASSERT(strlen(out_str) == strlen(wanted_output));
OSMO_ASSERT(strcmp(out_str, wanted_output) == 0);
/* encode and verify it */
if (len != 0) {
enc_len = osmo_apn_from_str(encoded, ARRAY_SIZE(encoded), wanted_output);
OSMO_ASSERT(enc_len == len);
OSMO_ASSERT(memcmp(encoded, input, enc_len) == 0);
} else {
enc_len = osmo_apn_from_str(encoded, 0, wanted_output);
OSMO_ASSERT(enc_len == -1);
}
}
static void test_gsm_03_03_apn(void)
{
{
/* test invalid writes */
const uint8_t ref[10] = { 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF };
uint8_t output[10];
int enc_len;
memcpy(output, ref, ARRAY_SIZE(output));
enc_len = osmo_apn_from_str(output, 0, "");
OSMO_ASSERT(enc_len == -1);
OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0);
memcpy(output, ref, ARRAY_SIZE(output));
enc_len = osmo_apn_from_str(output, 0, "foo");
OSMO_ASSERT(enc_len == -1);
OSMO_ASSERT(memcmp(ref, output, ARRAY_SIZE(ref)) == 0);
memcpy(output, ref, ARRAY_SIZE(output));
enc_len = osmo_apn_from_str(output, 1, "foo");
OSMO_ASSERT(enc_len == -1);
OSMO_ASSERT(memcmp(ref + 1, output + 1, ARRAY_SIZE(ref) - 1) == 0);
memcpy(output, ref, ARRAY_SIZE(output));
enc_len = osmo_apn_from_str(output, 2, "foo");
OSMO_ASSERT(enc_len == -1);
OSMO_ASSERT(memcmp(ref + 2, output + 2, ARRAY_SIZE(ref) - 2) == 0);
memcpy(output, ref, ARRAY_SIZE(output));
enc_len = osmo_apn_from_str(output, 3, "foo");
OSMO_ASSERT(enc_len == -1);
OSMO_ASSERT(memcmp(ref + 3, output + 3, ARRAY_SIZE(ref) - 3) == 0);
}
{
/* single empty label */
uint8_t input[] = { 0x0 };
const char *output = "";
apn_round_trip(input, ARRAY_SIZE(input), output);
}
{
/* no label */
uint8_t input[] = { };
const char *output = "";
apn_round_trip(input, ARRAY_SIZE(input), output);
}
{
/* single label with A */
uint8_t input[] = { 0x1, 65 };
const char *output = "A";
apn_round_trip(input, ARRAY_SIZE(input), output);
OSMO_ASSERT(osmo_apn_to_str(NULL, input, ARRAY_SIZE(input) - 1) == NULL);
}
{
/* NULL input */
uint8_t input[] = { 0x1, 65 };
char *output = "LOL";
OSMO_ASSERT(osmo_apn_to_str(output, NULL, ARRAY_SIZE(input) - 1) == NULL);
}
{
uint8_t input[] = { 0x3, 65, 66, 67, 0x2, 90, 122 };
const char *output = "ABC.Zz";
char tmp[strlen(output) + 1];
apn_round_trip(input, ARRAY_SIZE(input), output);
OSMO_ASSERT(osmo_apn_to_str(tmp, input, ARRAY_SIZE(input) - 1) == NULL);
OSMO_ASSERT(osmo_apn_to_str(tmp, input, ARRAY_SIZE(input) - 2) == NULL);
OSMO_ASSERT(osmo_apn_to_str(tmp, input, ARRAY_SIZE(input) - 4) == NULL);
OSMO_ASSERT(osmo_apn_to_str(tmp, input, ARRAY_SIZE(input) - 5) == NULL);
OSMO_ASSERT(osmo_apn_to_str(tmp, input, ARRAY_SIZE(input) - 6) == NULL);
}
}
const struct log_info_cat default_categories[] = {
};
static struct log_info info = {
.cat = default_categories,
.num_cat = ARRAY_SIZE(default_categories),
};
int main(int argc, char **argv)
{
void *ctx = talloc_named_const(NULL, 0, "gprs_test");
osmo_init_logging2(ctx, &info);
test_gsm_03_03_apn();
printf("Done.\n");
return EXIT_SUCCESS;
}
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