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Fix a possible NULL pointer dereference in tests (#3676)
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The dtypes test could dereference a NULL pointer if a strdup call
failed.
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@derobins
derobins authored Oct 16, 2023
1 parent 1cbda39 commit e158217
Showing 1 changed file with 92 additions and 126 deletions.
218 changes: 92 additions & 126 deletions test/dtypes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1983,187 +1983,153 @@ test_compound_10(void)

cmpd_struct wdata[ARRAY_DIM];
cmpd_struct rdata[ARRAY_DIM];
hid_t file;
hid_t arr_tid, cmpd_tid, cstr_id, vlstr_id;
hid_t space_id;
hid_t dset_id;
hid_t file = H5I_INVALID_HID;
hid_t arr_tid = H5I_INVALID_HID;
hid_t cmpd_tid = H5I_INVALID_HID;
hid_t cstr_id = H5I_INVALID_HID;
hid_t vlstr_id = H5I_INVALID_HID;
hid_t space_id = H5I_INVALID_HID;
hid_t dset_id = H5I_INVALID_HID;
hsize_t arr_dim[1] = {ARRAY_DIM}; /* Array dimensions */
hsize_t dim1[1];
void *t1, *t2;
void *t1 = NULL;
void *t2 = NULL;
char filename[1024];
size_t len;
int i;

TESTING("array datatype of compound type with VL string");

memset(wdata, 0, sizeof(wdata));
memset(rdata, 0, sizeof(rdata));

/* Initialize */
for (i = 0; i < ARRAY_DIM; i++) {
wdata[i].i1 = i * 10 + i;
wdata[i].str = strdup("C string A");
wdata[i].i1 = i * 10 + i;
if (NULL == (wdata[i].str = strdup("C string A")))
FAIL_PUTS_ERROR("Unable to duplicate string");
wdata[i].str[9] = (char)(wdata[i].str[9] + i);
wdata[i].i2 = i * 1000 + i * 10;

wdata[i].text.p = (void *)strdup("variable-length text A\0");
if (NULL == (wdata[i].text.p = (void *)strdup("variable-length text A\0")))
FAIL_PUTS_ERROR("Unable to duplicate string");
len = wdata[i].text.len = strlen((char *)wdata[i].text.p) + 1;
((char *)(wdata[i].text.p))[len - 2] = (char)(((char *)(wdata[i].text.p))[len - 2] + i);
((char *)(wdata[i].text.p))[len - 1] = '\0';
}

/* Create File */
h5_fixname(FILENAME[4], H5P_DEFAULT, filename, sizeof filename);
if ((file = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0) {
H5_FAILED();
AT();
printf("Can't create file!\n");
goto error;
} /* end if */
if ((file = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
TEST_ERROR;

/* Create first compound datatype */
if ((cmpd_tid = H5Tcreate(H5T_COMPOUND, sizeof(struct cmpd_struct))) < 0) {
H5_FAILED();
AT();
printf("Can't create datatype!\n");
goto error;
} /* end if */
if ((cmpd_tid = H5Tcreate(H5T_COMPOUND, sizeof(struct cmpd_struct))) < 0)
TEST_ERROR;

if (H5Tinsert(cmpd_tid, "i1", HOFFSET(struct cmpd_struct, i1), H5T_NATIVE_INT) < 0) {
H5_FAILED();
AT();
printf("Can't insert field 'i1'\n");
goto error;
} /* end if */
if (H5Tinsert(cmpd_tid, "i1", HOFFSET(struct cmpd_struct, i1), H5T_NATIVE_INT) < 0)
TEST_ERROR;

cstr_id = H5Tcopy(H5T_C_S1);
if (H5Tset_size(cstr_id, H5T_VARIABLE) < 0) {
H5_FAILED();
AT();
printf("Can't set size for C string\n");
goto error;
} /* end if */
if ((cstr_id = H5Tcopy(H5T_C_S1)) < 0)
TEST_ERROR;
if (H5Tset_size(cstr_id, H5T_VARIABLE) < 0)
TEST_ERROR;

if (H5Tinsert(cmpd_tid, "c_string", HOFFSET(cmpd_struct, str), cstr_id) < 0) {
H5_FAILED();
AT();
printf("Can't insert field 'str'\n");
goto error;
} /* end if */
if (H5Tinsert(cmpd_tid, "c_string", HOFFSET(cmpd_struct, str), cstr_id) < 0)
TEST_ERROR;

/* Create vl-string datatype */
if ((vlstr_id = H5Tvlen_create(H5T_NATIVE_CHAR)) < 0) {
H5_FAILED();
AT();
printf("Can't create VL string\n");
goto error;
} /* end if */
if ((vlstr_id = H5Tvlen_create(H5T_NATIVE_CHAR)) < 0)
TEST_ERROR;

if (H5Tinsert(cmpd_tid, "vl_string", HOFFSET(cmpd_struct, text), vlstr_id) < 0) {
H5_FAILED();
AT();
printf("Can't insert field 'text'\n");
goto error;
} /* end if */
if (H5Tinsert(cmpd_tid, "vl_string", HOFFSET(cmpd_struct, text), vlstr_id) < 0)
TEST_ERROR;

if (H5Tinsert(cmpd_tid, "i2", HOFFSET(struct cmpd_struct, i2), H5T_NATIVE_INT) < 0) {
H5_FAILED();
AT();
printf("Can't insert field 'i2'\n");
goto error;
} /* end if */
if (H5Tinsert(cmpd_tid, "i2", HOFFSET(struct cmpd_struct, i2), H5T_NATIVE_INT) < 0)
TEST_ERROR;

/* Create the array datatype for c_string data */
if ((arr_tid = H5Tarray_create2(cmpd_tid, 1, arr_dim)) < 0) {
H5_FAILED();
AT();
printf("Can't create array type\n");
goto error;
} /* end if */
if ((arr_tid = H5Tarray_create2(cmpd_tid, 1, arr_dim)) < 0)
TEST_ERROR;

dim1[0] = 1;
if ((space_id = H5Screate_simple(1, dim1, NULL)) < 0) {
H5_FAILED();
AT();
printf("Can't create space\n");
goto error;
} /* end if */
if ((space_id = H5Screate_simple(1, dim1, NULL)) < 0)
TEST_ERROR;

if ((dset_id = H5Dcreate2(file, "Dataset", arr_tid, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
0) {
H5_FAILED();
AT();
printf("Can't create dataset\n");
goto error;
} /* end if */
if ((dset_id = H5Dcreate2(file, "Dataset", arr_tid, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
TEST_ERROR;

if (H5Dwrite(dset_id, arr_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &wdata) < 0) {
H5_FAILED();
AT();
printf("Can't write data\n");
goto error;
} /* end if */
if (H5Dwrite(dset_id, arr_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &wdata) < 0)
TEST_ERROR;

if (H5Dread(dset_id, arr_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &rdata) < 0) {
H5_FAILED();
AT();
printf("Can't read data\n");
goto error;
} /* end if */
if (H5Dread(dset_id, arr_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &rdata) < 0)
TEST_ERROR;

for (i = 0; i < ARRAY_DIM; i++) {
if (rdata[i].i1 != wdata[i].i1 || rdata[i].i2 != wdata[i].i2 ||
strcmp(rdata[i].str, wdata[i].str) != 0) {
H5_FAILED();
AT();
printf("incorrect read data\n");
goto error;
} /* end if */
strcmp(rdata[i].str, wdata[i].str) != 0)
FAIL_PUTS_ERROR("incorrect read data\n");

if (rdata[i].text.len != wdata[i].text.len) {
H5_FAILED();
AT();
printf("incorrect VL length\n");
goto error;
} /* end if */
if (rdata[i].text.len != wdata[i].text.len)
FAIL_PUTS_ERROR("incorrect VL length\n");

t1 = rdata[i].text.p;
t2 = wdata[i].text.p;
if (strcmp((char *)t1, (char *)t2) != 0) {
H5_FAILED();
AT();
printf("incorrect VL read data\n");
goto error;
}
} /* end for */
if (H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &rdata) < 0) {
H5_FAILED();
AT();
printf("Can't reclaim read data\n");
goto error;
} /* end if */
if (H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &wdata) < 0) {
H5_FAILED();
AT();
printf("Can't reclaim read data\n");
goto error;
} /* end if */
if (strcmp((char *)t1, (char *)t2) != 0)
FAIL_PUTS_ERROR("incorrect VL read data\n");
}

if (H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &rdata) < 0)
TEST_ERROR;
if (H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &wdata) < 0)
TEST_ERROR;

if (H5Dclose(dset_id) < 0)
goto error;
TEST_ERROR;
if (H5Tclose(arr_tid) < 0)
goto error;
TEST_ERROR;
arr_tid = H5I_INVALID_HID;
if (H5Tclose(cmpd_tid) < 0)
goto error;
TEST_ERROR;
if (H5Tclose(cstr_id) < 0)
goto error;
TEST_ERROR;
if (H5Tclose(vlstr_id) < 0)
goto error;
TEST_ERROR;
if (H5Sclose(space_id) < 0)
goto error;
TEST_ERROR;
space_id = H5I_INVALID_HID;
if (H5Fclose(file) < 0)
goto error;
TEST_ERROR;

PASSED();
return 0;

error:

H5E_BEGIN_TRY
{
if (arr_tid != H5I_INVALID_HID && space_id != H5I_INVALID_HID) {
H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &rdata);
H5Treclaim(arr_tid, space_id, H5P_DEFAULT, &wdata);
}
else {
/* Clean up memory if we failed out early */
for (i = 0; i < ARRAY_DIM; i++) {
free(wdata[i].str);
free(wdata[i].text.p);
}
}

H5Dclose(dset_id);
H5Tclose(arr_tid);
H5Tclose(cmpd_tid);
H5Tclose(cstr_id);
H5Tclose(vlstr_id);
H5Sclose(space_id);
H5Fclose(file);
}
H5E_END_TRY

return 1;
}

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