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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/zfs/zap_micro.c
+2 -1
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@@ -1602,7 +1602,8 @@ zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za)
za->za_integer_length = 8;
za->za_num_integers = 1;
za->za_first_integer = mzep->mze_value;
(void) strcpy(za->za_name, mzep->mze_name);
(void) strlcpy(za->za_name, mzep->mze_name,
sizeof (za->za_name));
zc->zc_hash = mze->mze_hash;
zc->zc_cd = mze->mze_cd;
err = 0;