Hi,
On Sat, Jul 24, 2021 at 11:21:04PM +0300, Andy Shevchenko wrote:
On Sat, Jul 24, 2021 at 7:05 PM Len Baker len.baker@gmx.com wrote:
strcpy() performs no bounds checking on the destination buffer. This could result in linear overflows beyond the end of the buffer, leading to all kinds of misbehaviors. The safe replacement is strscpy() but in this case it is simpler to use the "%*ph" format specifier.
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char msg[128];128 / 4 = 32. So, this buffer is enough to debug print only up to 32 bytes. Hence %*ph replacement won't cut output earlier than requested.
I'm sorry, but I don't understand what you are trying to explain. Moreover, with the "0x%02X " in the sprintf followed by the strcat, the msg buffer can print 128/5 values (25 hex values).
The %*ph replacement can print up to 64 bytes, so I don't see any problem here.
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for (j = i + 1; par->init_sequence[j] >= 0; j++);Why is i + 1 initial for the j? You may rather access the 'i + 1 + j'th element in the array...
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par->init_sequence[i], j - i - 1,...and get rid of the ' - i -1' part here.
Yes, it was the first idea but I prefer this method since we save aritmethic operations. In other words, if I use what you suggest, the index for par->init_sequence is calculated as a "sum" every iteration. But if the performance is not an issue and you believe that the above is more clear, I have no problem. What do you prefer?
Thanks, Len