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| author | Chuck Lever <chuck.lever@oracle.com> | 2009-04-23 19:33:25 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2009-04-28 13:54:30 -0400 |
| commit | e06b64050ebea1220bca3c291d0431f5206b5c95 (patch) | |
| tree | 8d24948cb2397ae456bdf0467b63fa41764759fe /fs | |
| parent | 261758b5c3dfeac73ca364c47ed538f5ce4250ee (diff) | |
| download | linux-e06b64050ebea1220bca3c291d0431f5206b5c95.tar.gz linux-e06b64050ebea1220bca3c291d0431f5206b5c95.tar.bz2 linux-e06b64050ebea1220bca3c291d0431f5206b5c95.zip | |
NFSD: Stricter buffer size checking in fs/nfsd/nfsctl.c
Clean up: For consistency, handle output buffer size checking in a
other nfsctl functions the same way it's done for write_versions().
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfsctl.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index a152694e016e..877e713a0fd6 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -695,8 +695,9 @@ static ssize_t write_threads(struct file *file, char *buf, size_t size) if (rv) return rv; } - sprintf(buf, "%d\n", nfsd_nrthreads()); - return strlen(buf); + + return scnprintf(buf, SIMPLE_TRANSACTION_LIMIT, "%d\n", + nfsd_nrthreads()); } /** @@ -1197,7 +1198,9 @@ static ssize_t write_maxblksize(struct file *file, char *buf, size_t size) nfsd_max_blksize = bsize; mutex_unlock(&nfsd_mutex); } - return sprintf(buf, "%d\n", nfsd_max_blksize); + + return scnprintf(buf, SIMPLE_TRANSACTION_LIMIT, "%d\n", + nfsd_max_blksize); } #ifdef CONFIG_NFSD_V4 @@ -1221,8 +1224,9 @@ static ssize_t __write_leasetime(struct file *file, char *buf, size_t size) return -EINVAL; nfs4_reset_lease(lease); } - sprintf(buf, "%ld\n", nfs4_lease_time()); - return strlen(buf); + + return scnprintf(buf, SIMPLE_TRANSACTION_LIMIT, "%ld\n", + nfs4_lease_time()); } /** |