dmi_generic_parse_entry_addr

Synopsis

#include <opendmi/backend/generic.h>

bool dmi_generic_parse_entry_addr(dmi_context_t *context, const char *str, uint64_t *paddr);

Description

The dmi_generic_parse_entry_addr function parses the physical address of the SMBIOS entry point, as a system tells it in text, e.g. the hint.smbios.0.mem kernel environment variable of FreeBSD. The backends of such systems read the entry point from that address, see dmi_memory_load.

The address is read the way strtoull(3) reads it with the base of zero: as hexadecimal with the 0x prefix, as octal with the 0 prefix, and as decimal otherwise. The whole string must be the address.

The address is 64-bit on every system, so that an address above 4 GiB is passed on as it is, and is rejected by dmi_memory_load if the system cannot reach it.

Parameters

context: Context to raise errors on.
str: Address in text.
paddr: Variable to store the address in. It is left as it is on failure.

Return value

Returns true if the address has been parsed, and false otherwise.

Errors

DMI_ERROR_ARGUMENT_NULL: str or paddr is nullptr.
DMI_ERROR_ARGUMENT_INVALID: String is not an address, or the address does not fit in 64 bits.

Notes

The header is installed only on the systems whose backends use it, which are FreeBSD and NetBSD.