7b2d78a046
Fix a few cases where null-byte termination of strings was done unnecessarily or incorrectly. - The snprintf() function always produces a null-byte terminated string for non-negative return values, so it is not necessary to write out a null-byte as a separate step. - Also, it is unsafe to use the return value of snprintf() as an offset for placing a null-byte, because if the output was truncated the return value is the number of bytes that _would_ have been written had enough space been available. Therefore the return value may index beyond the array boundaries. - Finally, snprintf() accounts for the null-byte when limiting its output size, so there is no need to pass it a size parameter that is one less than the buffer size. Signed-off-by: Ned Bass <bass6@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2875 |
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