Tweak some DEBUG output.

Always put '0x' prefix in front of displayed hex values,
i.e. the checksums.

Add missing letoh32() so bad endian checksum is clear.

Be consistent when displaying 'expected' and 'got' checksums,
i.e. 'expected' == calculated checksum and 'got' == checksum
found in GPT.

diff --git a/sbin/fdisk/gpt.c b/sbin/fdisk/gpt.c
index 6547d93..eb23259 100644 (file)
--- a/sbin/fdisk/gpt.c
+++ b/sbin/fdisk/gpt.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: gpt.c,v 1.54 2021/12/28 23:44:02 krw Exp $    */
+/*     $OpenBSD: gpt.c,v 1.55 2021/12/29 00:04:45 krw Exp $    */
 /*
  * Copyright (c) 2015 Markus Muller <mmu@grummel.net>
  * Copyright (c) 2015 Kenneth R Westerback <krw@openbsd.org>
@@ -165,9 +165,9 @@ get_header(const uint64_t sector)
        gh.gh_csum = 0;
        new_gh_csum = crc32((unsigned char *)&gh, letoh32(gh.gh_size));
        gh.gh_csum = orig_gh_csum;
-       if (letoh32(orig_gh_csum) != new_gh_csum) {
+       if (new_gh_csum != letoh32(gh.gh_csum)) {
                DPRINTF("gpt header checksum: expected 0x%x, got 0x%x\n",
-                   orig_gh_csum, new_gh_csum);
+                   new_gh_csum, letoh32(gh.gh_csum));
                return -1;
        }
 
@@ -244,8 +244,8 @@ get_partition_table(void)
 
        checksum = crc32((unsigned char *)&gp, gpbytes);
        if (checksum != letoh32(gh.gh_part_csum)) {
-               DPRINTF("gpt partition table checksum: expected %x, got %x\n",
-                   checksum, letoh32(gh.gh_part_csum));
+               DPRINTF("gpt partition table checksum: expected 0x%x, "
+                   "got 0x%x\n", checksum, letoh32(gh.gh_part_csum));
                return -1;
        }