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tst_h_strbug.c
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tst_h_strbug.c
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/* This is part of the netCDF package. Copyright 2018 University
Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
conditions of use.
This program tests fixes for bugs reported with accessing
fixed-length scalar string variables and variable-length scalar
string attributes from HDF5 files through the netCDF-4 API.
Here's a HDF5 sample programs:
http://hdf.ncsa.uiuc.edu/training/other-ex5/sample-programs/strings.c
*/
#include <config.h>
#include <nc_tests.h>
#include <err_macros.h>
#include <hdf5.h>
#define FILE_NAME "tst_h_strbug.h5"
#define VS_ATT_NAME "vsatt"
#define FS_ATT_NAME "fsatt"
#define VS_VAR_NAME "vsvar"
#define FS_VAR_NAME "fsvar"
#define V1D_VAR_NAME "v1dvar"
#define FSTR_LEN 20
#define DIM1 4
#define RANK 1
int
main()
{
char *vs = "variable-length string";
char fsdata[] = "fixed-length string";
char *v1ddata[DIM1] = {"strings","of","variable","length"};
int i;
printf("\n*** Creating file for checking fix to bugs in accessing strings from HDF5 non-netcdf-4 file.\n");
{
hid_t fileid, scalar_spaceid, vstypeid, fstypeid, vsattid, fsattid, vsdsetid, fsdsetid;
size_t type_size = FSTR_LEN;
hid_t v1ddsetid;
hid_t v1dspaceid;
hsize_t dims[1] = {DIM1};
if ((scalar_spaceid = H5Screate(H5S_SCALAR)) < 0) ERR;
if ((v1dspaceid = H5Screate_simple(RANK, dims, NULL)) < 0) ERR;
/* Create variable-length and fixed-length string types. */
if ((vstypeid = H5Tcopy(H5T_C_S1)) < 0) ERR;
if (H5Tset_size(vstypeid, H5T_VARIABLE) < 0) ERR;
if ((fstypeid = H5Tcopy(H5T_C_S1)) < 0) ERR;
if (H5Tset_size(fstypeid, type_size) < 0) ERR;
/* Create new file, using default properties. */
if ((fileid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0) ERR;
/* Create scalar datasets of variable- and fixed-length strings. */
if ((vsdsetid = H5Dcreate (fileid, VS_VAR_NAME, vstypeid, scalar_spaceid,
H5P_DEFAULT)) < 0) ERR;
if (H5Dwrite (vsdsetid, vstypeid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &vs)) ERR;
if ((fsdsetid = H5Dcreate (fileid, FS_VAR_NAME, fstypeid, scalar_spaceid,
H5P_DEFAULT)) < 0) ERR;
if (H5Dwrite (fsdsetid, fstypeid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &fsdata)) ERR;
/* Create 1D dataset of variable-length strings. */
if ((v1ddsetid = H5Dcreate (fileid, V1D_VAR_NAME, vstypeid, v1dspaceid,
H5P_DEFAULT)) < 0) ERR;
if (H5Dwrite (v1ddsetid, vstypeid, H5S_ALL, H5S_ALL, H5P_DEFAULT, &v1ddata)) ERR;
/* Write scalar global attributes of these types. */
if ((vsattid = H5Acreate(fileid, VS_ATT_NAME, vstypeid, scalar_spaceid,
H5P_DEFAULT)) < 0) ERR;
if (H5Awrite(vsattid, vstypeid, &vs) < 0) ERR;
if ((fsattid = H5Acreate(fileid, FS_ATT_NAME, fstypeid, scalar_spaceid,
H5P_DEFAULT)) < 0) ERR;
if (H5Awrite(fsattid, fstypeid, &fsdata) < 0) ERR;
/* Close up. */
if (H5Aclose(vsattid) < 0) ERR;
if (H5Aclose(fsattid) < 0) ERR;
if (H5Sclose(scalar_spaceid) < 0) ERR;
if (H5Sclose(v1dspaceid) < 0) ERR;
if (H5Tclose(vstypeid) < 0) ERR;
if (H5Tclose(fstypeid) < 0) ERR;
if (H5Dclose(vsdsetid) < 0) ERR;
if (H5Dclose(fsdsetid) < 0) ERR;
if (H5Dclose(v1ddsetid) < 0) ERR;
if (H5Fclose(fileid) < 0) ERR;
}
printf("*** Checking reading variable-length HDF5 string var through netCDF-4 API...");
{
int ncid, varid, ndims;
nc_type type;
char *data_in;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_varid(ncid, VS_VAR_NAME, &varid)) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_STRING) ERR;
if (nc_inq_varndims(ncid, varid, &ndims )) ERR;
if (ndims != 0) ERR;
if (nc_get_var_string(ncid, varid, &data_in)) ERR;
if (strcmp(vs, data_in)) ERR;
if (nc_free_string(1, &data_in)) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking reading fixed-length HDF5 string var through netCDF-4 API...");
{
int ncid, varid, ndims;
nc_type type;
char *data_in;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_varid(ncid, FS_VAR_NAME, &varid)) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_STRING) ERR;
if (nc_inq_varndims(ncid, varid, &ndims )) ERR;
if (ndims != 0) ERR;
if (nc_get_var_string(ncid, varid, &data_in)) ERR;
if (strcmp(fsdata, data_in)) ERR;
if (nc_free_string(1, &data_in)) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking reading variable-length HDF5 string att through netCDF-4 API...");
{
int ncid;
nc_type type;
size_t len;
char *data_in;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_att(ncid, NC_GLOBAL, VS_ATT_NAME, &type, &len)) ERR;
if (type != NC_STRING) ERR;
if (len != 1) ERR;
if (nc_get_att_string(ncid, NC_GLOBAL, VS_ATT_NAME, &data_in)) ERR;
if (strcmp(vs, data_in)) ERR;
if (nc_free_string(1, &data_in)) ERR;
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking reading fixed-length HDF5 string att through netCDF-4 API...");
{
int ncid;
nc_type type;
size_t len;
char *data_in;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_att(ncid, NC_GLOBAL, FS_ATT_NAME, &type, &len)) ERR;
if (type != NC_CHAR) ERR;
if (len != FSTR_LEN) ERR;
if (!(data_in = malloc(len))) ERR;
/* if (nc_get_att_string(ncid, NC_GLOBAL, FS_ATT_NAME, &data_in)) ERR; */
if (nc_get_att_text(ncid, NC_GLOBAL, FS_ATT_NAME, data_in)) ERR;
if (strcmp(fsdata, data_in)) ERR;
free(data_in);
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
printf("*** Checking reading variable-length HDF5 strings var through netCDF-4 API...");
{
int ncid, varid, ndims;
nc_type type;
int *dimids;
size_t nstrings;
char **data_in;
if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_inq_varid(ncid, V1D_VAR_NAME, &varid)) ERR;
if (nc_inq_vartype(ncid, varid, &type)) ERR;
if (type != NC_STRING) ERR;
if (nc_inq_varndims(ncid, varid, &ndims )) ERR;
if (ndims != RANK) ERR;
if (!(dimids = malloc(ndims * sizeof(int)))) ERR;
if (nc_inq_vardimid(ncid, varid, dimids)) ERR;
if (nc_inq_dimlen(ncid, dimids[0], &nstrings)) ERR;
if (!(data_in = (char **)malloc(nstrings * sizeof(char *)))) ERR;
if (nc_get_var_string(ncid, varid, data_in)) ERR;
for (i = 0; i < nstrings; i++) {
if(strcmp(v1ddata[i], data_in[i])) ERR;
}
if (nc_free_string(nstrings, data_in)) ERR;
free(data_in);
free(dimids);
if (nc_close(ncid)) ERR;
}
SUMMARIZE_ERR;
FINAL_RESULTS;
}