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vmm: Modernize get_smbios_table()

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This commit is contained in:
Daan De Meyer
2023-02-22 17:04:58 +01:00
parent 717af0de46
commit c8e5d82c97
1 changed files with 8 additions and 12 deletions
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20
src/boot/efi/vmm.c
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@@ -261,22 +261,18 @@ static const SmbiosHeader *get_smbios_table(uint8_t type, uint64_t *ret_size_lef
/* Skip over string table. */
for (;;) {
while (size > 0 && *p != '\0') {
const uint8_t *e = memchr(p, 0, size);
if (!e)
return NULL;
if (e == p) {/* Double NUL byte means we've reached the end of the string table. */
p++;
size--;
}
if (size == 0)
return NULL;
p++;
size--;
/* Double NUL terminates string table. */
if (*p == '\0') {
if (size == 0)
return NULL;
p++;
break;
}
size -= e + 1 - p;
p = e + 1;
}
}