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-rw-r--r--src/gsm_utils.c10
-rw-r--r--tests/sms/sms_test.c21
2 files changed, 16 insertions, 15 deletions
diff --git a/src/gsm_utils.c b/src/gsm_utils.c
index 3a378ac..1a7ba0e 100644
--- a/src/gsm_utils.c
+++ b/src/gsm_utils.c
@@ -51,19 +51,21 @@ int gsm_7bit_decode(char *text, const uint8_t *user_data, uint8_t length)
{
int i = 0;
int l = 0;
- uint8_t *rtext = calloc(length, sizeof(uint8_t));
+ int septet_l = (length * 8) / 7;
+ uint8_t *rtext = calloc(septet_l + 1, sizeof(uint8_t));
uint8_t tmp;
/* FIXME: We need to account for user data headers here */
i += l;
- for (; i < length; i ++){
+ for (; i < septet_l; i++){
rtext[i] =
((user_data[(i * 7 + 7) >> 3] <<
(7 - ((i * 7 + 7) & 7))) |
(user_data[(i * 7) >> 3] >>
((i * 7) & 7))) & 0x7f;
}
- for(i = 0; i < length; i++){
+
+ for(i = 0; i < septet_l; i++){
/* this is an extension character */
if(rtext[i] == 0x1b && i + 1 < length){
tmp = rtext[i+1];
@@ -139,7 +141,7 @@ int gsm_7bit_encode(uint8_t *result, const char *data)
}
free(rdata);
- return i;
+ return z;
}
/* determine power control level for given dBm value, as indicated
diff --git a/tests/sms/sms_test.c b/tests/sms/sms_test.c
index 3742dd8..9d87b5b 100644
--- a/tests/sms/sms_test.c
+++ b/tests/sms/sms_test.c
@@ -37,7 +37,7 @@ struct test_case {
static const char simple_text[] = "test text";
static const uint8_t simple_enc[] = {
- 0xf4, 0xf2, 0x9c, 0x0e, 0xa2, 0x97, 0xf1, 0x74, 0x00,
+ 0xf4, 0xf2, 0x9c, 0x0e, 0xa2, 0x97, 0xf1, 0x74
};
static const char escape_text[] = "!$ a more#^- complicated test@@?_\%! case";
@@ -46,7 +46,6 @@ static const uint8_t escape_enc[] = {
0x86, 0xd2, 0x02, 0x8d, 0xdf, 0x6d, 0x38, 0x3b, 0x3d,
0x0e, 0xd3, 0xcb, 0x64, 0x10, 0xbd, 0x3c, 0xa7, 0x03,
0x00, 0xbf, 0x48, 0x29, 0x04, 0x1a, 0x87, 0xe7, 0x65,
- 0x00, 0x00, 0x00, 0x00, 0x00
};
static const struct test_case test_encode[] =
@@ -54,12 +53,12 @@ static const struct test_case test_encode[] =
{
.input = simple_text,
.expected = simple_enc,
- .expected_length = 9,
+ .expected_length = sizeof(simple_enc),
},
{
.input = escape_text,
.expected = escape_enc,
- .expected_length = 41,
+ .expected_length = sizeof(escape_enc),
},
};
@@ -67,12 +66,12 @@ static const struct test_case test_decode[] =
{
{
.input = simple_enc,
- .input_length = 9,
+ .input_length = sizeof(simple_enc),
.expected = simple_text,
},
{
.input = escape_enc,
- .input_length = 41,
+ .input_length = sizeof(escape_enc),
.expected = escape_text,
},
};
@@ -89,13 +88,13 @@ int main(int argc, char** argv)
char result[256];
/* test 7-bit encoding */
- for (i = 0; i < ARRAY_SIZE(test_encode); ++i) {
- memset(coded, 0, sizeof(coded));
+ for (i = 0; i < ARRAY_SIZE(test_encode); ++i) {
+ memset(coded, 0x42, sizeof(coded));
length = gsm_7bit_encode(coded, test_encode[i].input);
if (length != test_encode[i].expected_length) {
- fprintf(stderr, "Failed to encode case %d. Got %d\n",
- i, length);
+ fprintf(stderr, "Failed to encode case %d. Got %d, expected %d\n",
+ i, length, test_encode[i].expected_length);
return -1;
}
@@ -108,7 +107,7 @@ int main(int argc, char** argv)
/* test 7-bit decoding */
for (i = 0; i < ARRAY_SIZE(test_decode); ++i) {
- memset(result, 0, sizeof(coded));
+ memset(result, 0x42, sizeof(coded));
gsm_7bit_decode(result, test_decode[i].input,
test_decode[i].input_length);