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Replace sprintf()->snprintf() and strcpy()->strlcpy()

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The strcpy() and sprintf() functions are deprecated on some platforms.
Care is needed to ensure correct size is used.  If some platforms
miss snprintf, we can add a #define to sprintf, likewise strlcpy().

The biggest change is adding a size parameter to zfs_id_to_fuidstr().

The various *_impl_get() functions are only used on linux and have
not yet been updated.

Reviewed by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Closes #10400
This commit is contained in:
Jorgen Lundman
2020-06-08 03:42:12 +09:00
committed by GitHub
parent 60265072e0
commit c9e319faae
22 changed files with 79 additions and 60 deletions
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module/os/linux/zfs/zfs_vfsops.c
+1 -1
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@@ -1021,7 +1021,7 @@ zfs_statfs_project(zfsvfs_t *zfsvfs, znode_t *zp, struct kstatfs *statp,
strlcpy(buf, DMU_OBJACCT_PREFIX, DMU_OBJACCT_PREFIX_LEN + 1);
err = zfs_id_to_fuidstr(zfsvfs, NULL, zp->z_projid, buf + offset,
B_FALSE);
sizeof (buf) - offset, B_FALSE);
if (err)
return (err);