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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/dsl_prop.c
+6 -4
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@@ -132,8 +132,9 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
if (inheriting) {
dsl_dir_name(dd, setpoint);
} else {
(void) strcpy(setpoint,
ZPROP_SOURCE_VAL_RECVD);
(void) strlcpy(setpoint,
ZPROP_SOURCE_VAL_RECVD,
MAXNAMELEN);
}
}
break;
@@ -206,8 +207,9 @@ dsl_prop_get_ds(dsl_dataset_t *ds, const char *propname,
kmem_strfree(recvdstr);
if (err != ENOENT) {
if (setpoint != NULL && err == 0)
(void) strcpy(setpoint,
ZPROP_SOURCE_VAL_RECVD);
(void) strlcpy(setpoint,
ZPROP_SOURCE_VAL_RECVD,
MAXNAMELEN);
return (err);
}
}