diff options
| -rw-r--r-- | src/shred.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/shred.c b/src/shred.c index 2c48fd7c3..922ccefb5 100644 --- a/src/shred.c +++ b/src/shred.c @@ -151,6 +151,10 @@ char *xstrdup PARAMS ((char const *)); # endif # endif +/* POSIX doesn't require st_blksize, and 65536 is a reasonable + upper bound for existing filesystem practice. */ +# define ST_BLKSIZE(Stat) 65536 + # define uintmax_t unsigned long /* Variant human-readable function that ignores last two args */ @@ -1418,9 +1422,9 @@ do_wipefd (int fd, char const *qname, struct isaac_state *s, error (0, 0, _("%s: file has negative size"), qname); return -1; } - if (0 <= size && st.st_blksize && !(flags->exact)) + if (0 <= size && !(flags->exact)) { - size += st.st_blksize - 1 - (size - 1) % st.st_blksize; + size += ST_BLKSIZE (st) - 1 - (size - 1) % ST_BLKSIZE (st); if (size < 0) size = TYPE_MAXIMUM (off_t); } |