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[SYSDM] Explicitly check DMI strings for NULL pointers

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...to make CRT string comparison functions happy. CORE-15403
This commit is contained in:
Stanislav Motylkov 2018-11-30 16:55:29 +03:00
parent 8c710dc518
commit ed7a78e97a
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GPG key ID: AFE513258CBA9E92
1 changed files with 6 additions and 3 deletions
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9
dll/cpl/sysdm/smbios.c
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@ -331,6 +331,7 @@ void AppendSystemFamily(PWSTR pBuf, SIZE_T cchBuf, PCHAR * DmiStrings, PWSTR dev
if (wcsistr(dev, wideStr) == NULL &&
(!Aliases[i] || wcsistr(dev, Aliases[i]) == NULL) &&
DmiStrings[SYS_FAMILY] != NULL &&
!stricmp(DmiStrings[SYS_FAMILY], KnownFamilies[i]))
{
if (wcslen(pBuf) > 0 && wcslen(dev) > 0)
@ -514,7 +515,8 @@ BOOL GetSystemName(PWSTR pBuf, SIZE_T cchBuf)
{
StringCchCopyW(ven, _countof(ven), L"Lenovo");
if (stricmp(DmiStrings[SYS_VERSION], "Lenovo") &&
if (DmiStrings[SYS_VERSION] != NULL &&
stricmp(DmiStrings[SYS_VERSION], "Lenovo") &&
stricmp(DmiStrings[SYS_VERSION], "Lenovo Product") &&
stricmp(DmiStrings[SYS_VERSION], " ") &&
_strnicmp(DmiStrings[SYS_VERSION], " ", 3) &&
@ -545,8 +547,9 @@ BOOL GetSystemName(PWSTR pBuf, SIZE_T cchBuf)
// workaround for DEXP
if (!wcscmp(ven, L"DEXP"))
{
if (!stricmp(DmiStrings[SYS_PRODUCT], "Tablet PC")
&& DmiStrings[SYS_VERSION] != NULL)
if (DmiStrings[SYS_PRODUCT] != NULL &&
!stricmp(DmiStrings[SYS_PRODUCT], "Tablet PC") &&
DmiStrings[SYS_VERSION] != NULL)
{
GetSMBiosStringW(DmiStrings[SYS_VERSION], dev, _countof(dev), TRUE);
}