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由 Jiri Denemark 提交于
Various safezero() implementations used either -1, errno or -errno return values. This patch fixes them all to return -1 and set errno appropriately. There was also a bug in size parameter passed to safewrite() which could result in an attempt to write gigabytes out of a megabyte buffer. Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
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