rt_util_gdal_sr_auth_info()

rt_errorstate rt_util_gdal_sr_auth_info	(	GDALDatasetH	hds,
		char **	authname,
		char **	authcode
	)

Get auth name and code.

Parameters

authname	authority organization of code. calling function is expected to free the memory allocated for value
authcode	code assigned by authority organization. calling function is expected to free the memory allocated for value

Returns

ES_NONE on success, ES_ERROR on error

Definition at line 272 of file rt_util.c.

                                                                              {
        const char *srs = NULL;
 
        assert(authname != NULL);
        assert(authcode != NULL);
 
        *authname = NULL;
        *authcode = NULL;
 
        srs = GDALGetProjectionRef(hds);
        if (srs != NULL && srs[0] != '\0') {
                OGRSpatialReferenceH hSRS = OSRNewSpatialReference(NULL);
 
                if (OSRSetFromUserInput(hSRS, srs) == OGRERR_NONE) {
                        const char* pszAuthorityName = OSRGetAuthorityName(hSRS, NULL);
                        const char* pszAuthorityCode = OSRGetAuthorityCode(hSRS, NULL);
 
                        if (pszAuthorityName != NULL && pszAuthorityCode != NULL) {
                                size_t authorityName_len = strlen(pszAuthorityName) +1;
                                size_t authorityCode_len = strlen(pszAuthorityCode) + 1;
                                *authname = rtalloc(sizeof(char) * authorityName_len);
                                *authcode = rtalloc(sizeof(char) * authorityCode_len);
 
                                if (*authname == NULL || *authcode == NULL) {
                                        rterror("rt_util_gdal_sr_auth_info: Could not allocate memory for auth name and code");
                                        if (*authname != NULL) rtdealloc(*authname);
                                        if (*authcode != NULL) rtdealloc(*authcode);
                                        OSRDestroySpatialReference(hSRS);
                                        return ES_ERROR;
                                }
 
                                strncpy(*authname, pszAuthorityName, authorityName_len);
                                strncpy(*authcode, pszAuthorityCode, authorityCode_len);
                        }
                }
 
                OSRDestroySpatialReference(hSRS);
        }
 
        return ES_NONE;
}

References ES_ERROR, ES_NONE, rtalloc(), rtdealloc(), and rterror().

Referenced by RASTER_addBandOutDB(), and rt_raster_from_gdal_dataset().

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