Use snprintf instead of sprintf to prevent buffer overruns

In bitops.h, update the TABLE macro to call snprintf(buf, sizeof(buf),
...) rather than unbounded sprintf, ensuring that out-of-range indic

Use snprintf instead of sprintf to prevent buffer overruns

In bitops.h, update the TABLE macro to call snprintf(buf, sizeof(buf),
...) rather than unbounded sprintf, ensuring that out-of-range indices
produce a bounded "??%d" string.

In setpci.c, change the device slot formatting from sprintf(slot, ...) to
snprintf(slot, sizeof(slot), ...), capping output to the 16-byte buffer
and avoiding overflow when printing PCI domain, bus, dev, and func
values.

Signed-off-by: Mingjie Shen <[email protected]>

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bitops.h moved to root

It is a part of the utilities, not of libpci.