We already check that libfdt's r/o functions can deal properly with malformed blobs, where the memreserve block is not correct. Add a test for fdt_open_into(), which also queries the memreserve block, and uses the return value as an offset into a buffer. Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> --- tests/truncated_memrsv.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tests/truncated_memrsv.c b/tests/truncated_memrsv.c index d78036c..9defef3 100644 --- a/tests/truncated_memrsv.c +++ b/tests/truncated_memrsv.c @@ -18,7 +18,8 @@ int main(int argc, char *argv[]) { void *fdt = &truncated_memrsv; - int err; + char *buf; + int err, bufsize; uint64_t addr, size; test_init(argc, argv); @@ -46,5 +47,12 @@ int main(int argc, char *argv[]) FAIL("fdt_get_mem_rsv(1) returned %d instead of -FDT_ERR_BADOFFSET", err); + bufsize = fdt_totalsize(fdt); + buf = xmalloc(bufsize); + err = fdt_open_into(fdt, buf, bufsize); + if (err != -FDT_ERR_TRUNCATED) + FAIL("fdt_open_into() returned %d instead of -FDT_ERR_TRUNCATED", + err); + PASS(); } -- 2.17.5