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mountlist: use fsblkcnt_t when available (fixes #179)

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When defined 64bit interface to filesystem we do not get overflow
when detect FS size.
This commit is contained in:
Enrico Weigelt, metux IT service 2009-02-03 03:54:10 +01:00 committed by Sergei Trofimovich
parent 2377c64233
commit 6de4c5aafc
2 changed files with 12 additions and 8 deletions
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4
ChangeLog
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@ -31,6 +31,10 @@
* lib/mc.lib: added patch on #219 by angel_il
* vfs/extfs/u7z: patch from mandriva (#194)
2009-02-03 Enrico Weigelt, metux ITS <weigelt@metux.de>
* src/mountlist.c: fixed #179 (invalid block scale routine, problems with 32bit overflow)
2009-02-02 Enrico Weigelt, metux ITS <weigelt@metux.de>
* vfs/extfs/iso9660.in: added iso9660 fix by cppgx (#86)

16
src/mountlist.c
View File

@ -135,11 +135,11 @@ struct mount_entry
struct fs_usage
{
long fsu_blocks; /* Total blocks. */
long fsu_bfree; /* Free blocks available to superuser. */
long fsu_bavail; /* Free blocks available to non-superuser. */
long fsu_files; /* Total file nodes. */
long fsu_ffree; /* Free file nodes. */
fsblkcnt_t fsu_blocks; /* Total blocks. */
fsblkcnt_t fsu_bfree; /* Free blocks available to superuser. */
fsblkcnt_t fsu_bavail; /* Free blocks available to non-superuser. */
fsfilcnt_t fsu_files; /* Total file nodes. */
fsfilcnt_t fsu_ffree; /* Free file nodes. */
};
static int get_fs_usage (char *path, struct fs_usage *fsp);
@ -756,8 +756,8 @@ my_statfs (struct my_statfs *myfs_stats, const char *path)
BLOCKS FROMSIZE-byte blocks, rounding away from zero.
TOSIZE must be positive. Return -1 if FROMSIZE is not positive. */
static long
fs_adjust_blocks (long blocks, int fromsize, int tosize)
static fsblkcnt_t
fs_adjust_blocks (fsblkcnt_t blocks, int fromsize, int tosize)
{
if (tosize <= 0)
abort ();
@ -769,7 +769,7 @@ fs_adjust_blocks (long blocks, int fromsize, int tosize)
else if (fromsize > tosize) /* E.g., from 2048 to 512. */
return blocks * (fromsize / tosize);
else /* E.g., from 256 to 512. */
return (blocks + (blocks < 0 ? -1 : 1)) / (tosize / fromsize);
return blocks / (tosize / fromsize);
}
#if defined(_AIX) && defined(_I386)