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For big-endian version of getulong() macro, cast result to u_int32_t.

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This macro was written expecting a 32-bit unsigned long, and
doesn't work properly on 64-bit systems.  This bug caused vn_stat()
to return incorrect values for files larger than 2gb on msdosfs filesystems
on 64-bit systems.

PR:		106703
Submitted by:	Axel Gonzalez <loox e-shell net>
MFC after:	3 days
This commit is contained in:
Craig Rodrigues 2006-12-19 02:31:58 +00:00
parent d01e83878b
commit 3244bb8a12
1 changed files with 1 additions and 1 deletions
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2
sys/fs/msdosfs/bpb.h
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@ -101,7 +101,7 @@ struct bpb710 {
#define putulong(p, v) (*((u_int32_t *)(p)) = (v))
#else
#define getushort(x) (((u_int8_t *)(x))[0] + (((u_int8_t *)(x))[1] << 8))
#define getulong(x) (((u_int8_t *)(x))[0] + (((u_int8_t *)(x))[1] << 8) \
#define getulong(x) (u_int32_t)(((u_int8_t *)(x))[0] + (((u_int8_t *)(x))[1] << 8) \
+ (((u_int8_t *)(x))[2] << 16) \
+ (((u_int8_t *)(x))[3] << 24))
#define putushort(p, v) (((u_int8_t *)(p))[0] = (v), \