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netapi32: Fix some limits and bounds checking.

This commit is contained in:
Andrew Talbot 2009-01-19 17:34:54 +00:00 committed by Alexandre Julliard
parent bd607b64fd
commit 05c283246c
1 changed files with 8 additions and 8 deletions
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16
dlls/netapi32/nbt.c
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@ -103,8 +103,8 @@ WINE_DEFAULT_DEBUG_CHANNEL(netbios);
#define MIN_CACHE_TIMEOUT 60000
#define CACHE_TIMEOUT 360000
#define MAX_NBT_NAME_SZ (NCBNAMSZ * 2 + MAX_DOMAIN_NAME_LEN + 2)
#define SIMPLE_NAME_QUERY_PKT_SIZE 26 + MAX_NBT_NAME_SZ
#define MAX_NBT_NAME_SZ 255
#define SIMPLE_NAME_QUERY_PKT_SIZE 16 + MAX_NBT_NAME_SZ
#define DEFAULT_NBT_SESSIONS 16
@ -156,7 +156,7 @@ static DWORD gWINSQueries;
static DWORD gWINSQueryTimeout;
static DWORD gWINSServers[MAX_WINS_SERVERS];
static int gNumWINSServers;
static char gScopeID[MAX_DOMAIN_NAME_LEN];
static char gScopeID[MAX_SCOPE_ID_LEN];
static DWORD gCacheTimeout;
static struct NBNameCache *gNameCache;
@ -1493,7 +1493,7 @@ void NetBTInit(void)
(LPBYTE)&dword, &size) == ERROR_SUCCESS && dword >= MIN_QUERY_TIMEOUT
&& dword <= MAX_QUERY_TIMEOUT)
gWINSQueryTimeout = dword;
size = MAX_DOMAIN_NAME_LEN - 1;
size = sizeof(gScopeID) - 1;
if (RegQueryValueExW(hKey, ScopeIDW, NULL, NULL, (LPBYTE)gScopeID + 1, &size)
== ERROR_SUCCESS)
{
@ -1501,11 +1501,11 @@ void NetBTInit(void)
NetBTNameEncode */
char *ptr, *lenPtr;
for (ptr = gScopeID + 1; *ptr &&
ptr - gScopeID < MAX_DOMAIN_NAME_LEN; )
for (ptr = gScopeID + 1; ptr - gScopeID < sizeof(gScopeID) && *ptr; )
{
for (lenPtr = ptr - 1, *lenPtr = 0; *ptr && *ptr != '.' &&
ptr - gScopeID < MAX_DOMAIN_NAME_LEN; ptr++)
for (lenPtr = ptr - 1, *lenPtr = 0;
ptr - gScopeID < sizeof(gScopeID) && *ptr && *ptr != '.';
ptr++)
*lenPtr += 1;
ptr++;
}