tCheck magic outside of unpack just like the other fields - dedup - deduplicating backup program
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       ---
 (DIR) commit 758c94cb0be5e019637a9143e9f22601ab4a708b
 (DIR) parent ed26c07028c2c908351edbba0152e59d3fe1fb88
 (HTM) Author: sin <sin@2f30.org>
       Date:   Thu, 25 Apr 2019 17:44:32 +0100
       
       Check magic outside of unpack just like the other fields
       
       Diffstat:
         M bstorage.c                          |       9 +++++++--
       
       1 file changed, 7 insertions(+), 2 deletions(-)
       ---
 (DIR) diff --git a/bstorage.c b/bstorage.c
       t@@ -184,8 +184,6 @@ unpackbhdr(int fd, struct bhdr *bhdr)
                           &bhdr->nent);
        
                assert(n == sizeof(buf));
       -        if (memcmp(bhdr->magic, BHDRMAGIC, NBHDRMAGIC) != 0)
       -                return -1;
                return n;
        }
        
       t@@ -399,6 +397,13 @@ bsopen(struct bctx *bctx, char *path, int flags, int mode, struct bparam *bpar)
                        return -1;
                }
        
       +        /* Check magic */
       +        if (memcmp(bhdr->magic, BHDRMAGIC, NBHDRMAGIC) != 0) {
       +                free(sctx);
       +                close(fd);
       +                return -1;
       +        }
       +
                /* If the major version is different, the format is incompatible */
                if (((bhdr->flags >> VMAJSHIFT) & VMAJMASK) != VMAJ) {
                        free(sctx);