[PATCH v2 5/6] wbemprox: Provide accurate SMBIOS serial number.

[Mohamad Al-Jaf]

From: Mohamad Al-Jaf

---
 dlls/wbemprox/builtin.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/dlls/wbemprox/builtin.c b/dlls/wbemprox/builtin.c
index b8f7d0b8dca..3e61dfa6321 100644
--- a/dlls/wbemprox/builtin.c
+++ b/dlls/wbemprox/builtin.c
@@ -1378,6 +1378,26 @@ static WCHAR *get_bios_releasedate( const char *buf, UINT len )
     return ret;
 }

+static WCHAR *get_bios_system_serial_string( BYTE id, const char *buf, UINT len )
+{
+    const struct smbios_header *hdr;
+    const struct smbios_system *system;
+    UINT offset;
+
+    if (!(hdr = find_smbios_entry( SMBIOS_TYPE_SYSTEM, buf, len ))) return NULL;
+    system = (const struct smbios_system *)hdr;
+    offset = (const char *)system - buf + system->hdr.length;
+
+    return get_smbios_string( id, buf, offset, len );
+}
+
+static WCHAR *get_bios_system_serial( const char *buf, UINT len )
+{
+    WCHAR *ret = get_bios_system_serial_string( 4, buf, len );
+    if (!ret) return wcsdup( L"0" );
+    return ret;
+}
+
 static WCHAR *get_bios_smbiosbiosversion( const char *buf, UINT len )
 {
     WCHAR *ret = get_bios_string( 2, buf, len );
@@ -1455,7 +1475,7 @@ static enum fill_status fill_bios( struct table *table, const struct expr *cond
     rec->manufacturer           = get_bios_manufacturer( buf, len );
     rec->name                   = L"Default System BIOS";
     rec->releasedate            = get_bios_releasedate( buf, len );
-    rec->serialnumber           = L"0";
+    rec->serialnumber           = get_bios_system_serial( buf, len );
     rec->smbiosbiosversion      = get_bios_smbiosbiosversion( buf, len );
     rec->smbiosmajorversion     = get_bios_smbiosmajorversion( buf, len );
     rec->smbiosminorversion     = get_bios_smbiosminorversion( buf, len );