diff options
Diffstat (limited to 'src/H5Dint.c')
| -rw-r--r-- | src/H5Dint.c | 64 |
1 files changed, 49 insertions, 15 deletions
diff --git a/src/H5Dint.c b/src/H5Dint.c index 7c22835..7a39d4c 100644 --- a/src/H5Dint.c +++ b/src/H5Dint.c @@ -708,8 +708,8 @@ done: * * Purpose: Calculate the size required for the minimized object header. * - * Return: Success: SUCCEED (0) (non-negative value) - * Failure: FAIL (-1) (negative value) + * Return: Success: Positive value > 0 + * Failure: 0 * * Programmer: Jacob Smith * 16 August 2018 @@ -722,9 +722,10 @@ H5D__calculate_minimum_header_size(H5F_t *file, H5D_t *dset, H5O_t *ohdr) H5O_fill_t *fill_prop = NULL; hbool_t use_at_least_v18 = FALSE; const char continuation[1] = ""; /* requred for work-around */ + size_t get_value = 0; size_t ret_value = 0; - FUNC_ENTER_NOAPI_NOINIT_NOERR; + FUNC_ENTER_NOAPI_NOINIT; HDassert(file); HDassert(dset); @@ -735,22 +736,37 @@ H5D__calculate_minimum_header_size(H5F_t *file, H5D_t *dset, H5O_t *ohdr) use_at_least_v18 = (H5F_LOW_BOUND(file) >= H5F_LIBVER_V18); /* Datatype message size */ - ret_value += H5O_msg_size_oh(file, ohdr, H5O_DTYPE_ID, type, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_DTYPE_ID, type, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "Can't get size of datatype message") + ret_value += get_value; /* Shared Dataspace message size */ - ret_value += H5O_msg_size_oh(file, ohdr, H5O_SDSPACE_ID, dset->shared->space, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_SDSPACE_ID, dset->shared->space, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of dataspace message") + ret_value += get_value; /* "Layout" message size */ - ret_value += H5O_msg_size_oh(file, ohdr, H5O_LAYOUT_ID, &dset->shared->layout, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_LAYOUT_ID, &dset->shared->layout, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of layout message") + ret_value += get_value; /* Fill Value message size */ - ret_value += H5O_msg_size_oh(file, ohdr, H5O_FILL_NEW_ID, fill_prop, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_FILL_NEW_ID, fill_prop, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of fill value message") + ret_value += get_value; /* "Continuation" message size */ /* message pointer "continuation" is unused by raw get function, however, * a null pointer would be intercepted by an assert in H5O_msg_size_oh(). */ - ret_value += H5O_msg_size_oh(file, ohdr, H5O_CONT_ID, continuation, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_CONT_ID, continuation, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of continuation message") + ret_value += get_value; /* Fill Value (backwards compatability) message size */ if(fill_prop->buf && !use_at_least_v18) { @@ -760,21 +776,33 @@ H5D__calculate_minimum_header_size(H5F_t *file, H5D_t *dset, H5O_t *ohdr) /* guards against shared component modification */ HDmemcpy(&old_fill_prop, fill_prop, sizeof(old_fill_prop)); - H5O_msg_reset_share(H5O_FILL_ID, &old_fill_prop); + if (H5O_msg_reset_share(H5O_FILL_ID, &old_fill_prop) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't reset the copied fill property") - ret_value += H5O_msg_size_oh(file, ohdr, H5O_FILL_ID, &old_fill_prop, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_FILL_ID, &old_fill_prop, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of fill value (backwards compat) message") + ret_value += get_value; } /* Filter/Pipeline message size */ if(H5D_CHUNKED == dset->shared->layout.type) { H5O_pline_t *pline = &dset->shared->dcpl_cache.pline; - if(pline->nused > 0) - ret_value += H5O_msg_size_oh(file, ohdr, H5O_PLINE_ID, pline, 0); + if(pline->nused > 0) { + get_value = H5O_msg_size_oh(file, ohdr, H5O_PLINE_ID, pline, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of filter message") + ret_value += get_value; + } } /* External File Link message size */ - if(dset->shared->dcpl_cache.efl.nused > 0) - ret_value += H5O_msg_size_oh(file, ohdr, H5O_EFL_ID, &dset->shared->dcpl_cache.efl, 0); + if(dset->shared->dcpl_cache.efl.nused > 0) { + get_value = H5O_msg_size_oh(file, ohdr, H5O_EFL_ID, &dset->shared->dcpl_cache.efl, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of external file link message") + ret_value += get_value; + } /* Modification Time message size */ if(H5O_HDR_STORE_TIMES & H5O_OH_GET_FLAGS(ohdr)) { @@ -783,10 +811,14 @@ H5D__calculate_minimum_header_size(H5F_t *file, H5D_t *dset, H5O_t *ohdr) if(H5O_OH_GET_VERSION(ohdr) == 1) { /* v1 object headers store modification time as a message */ time_t mtime; - ret_value += H5O_msg_size_oh(file, ohdr, H5O_MTIME_NEW_ID, &mtime, 0); + get_value = H5O_msg_size_oh(file, ohdr, H5O_MTIME_NEW_ID, &mtime, 0); + if (get_value == 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't get size of modification time message") + ret_value += get_value; } } +done: FUNC_LEAVE_NOAPI(ret_value); } /* H5D__calculate_minimum_header_size */ @@ -822,6 +854,8 @@ H5D__prepare_minimized_oh(H5F_t *file, H5D_t *dset, H5O_loc_t *oloc) HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, FAIL, "can't instantiate object header") ohdr_size = H5D__calculate_minimum_header_size(file, dset, oh); + if (ohdr_size == 0) + HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, FAIL, "computed header size is invalid") if(H5O__apply_ohdr(file, oh, dset->shared->dcpl_id, ohdr_size, (size_t)1, oloc) == FAIL) HGOTO_ERROR(H5E_OHDR, H5E_BADVALUE, FAIL, "can't apply object header to file") |