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Description: Correct calculation of block count
Makes sure equal numbers of blocks are return with applying 'stat *' on
the mounted iso, regardless of whether it has been mounted per
'mount -o loop ...', 'udisksctl loop-setup ...' or 'fuseiso ...'.
Author: Gareth Davidson <garethdavidson@gmail.com>
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104465
Forwarded: not-needed
Reviewed-by: Sven Geuer <sge@debian.org>
Last-Update: 2025-05-01
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
diff --git a/src/isofs.c b/src/isofs.c
index 64b1e92..d53139c 100644
--- a/src/isofs.c
+++ b/src/isofs.c
@@ -539,7 +539,7 @@ static int isofs_direntry2stat(struct stat *st, isofs_inode *inode) {
st->st_size = isonum_733(record->size);
};
- st->st_blocks = st->st_size / context.data_size; // should not be to meaningful even for zisofs compression
+ st->st_blocks = (st->st_size + 511) >> 9; // divide by 512 with ceil
st->st_blksize = context.data_size;
st->st_nlink = 1; // always, even if rrip PX entry found
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