[hbelusca] 57787: [NTOSKRNL] - Skip other spaces preceding a command option instead of increasing the reading pointer of a constant (should fix KDSERIAL). - Use a macro for representing length in c...

Author: hbelusca
Date: Sun Dec  2 15:30:59 2012
New Revision: 57787

URL: http://svn.reactos.org/svn/reactos?rev=57787&view=rev
Log:
[NTOSKRNL]
- Skip other spaces preceding a command option instead of increasing the reading pointer of a constant (should fix KDSERIAL).
- Use a macro for representing length in chars of constant strings instead of putting magic values.

Modified:
    trunk/reactos/ntoskrnl/kdbg/kdb.c

Modified: trunk/reactos/ntoskrnl/kdbg/kdb.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/kdbg/kdb.c?rev=577...
==============================================================================
--- trunk/reactos/ntoskrnl/kdbg/kdb.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/kdbg/kdb.c [iso-8859-1] Sun Dec  2 15:30:59 2012
@@ -1705,30 +1705,29 @@
 KdbpGetCommandLineSettings(
     PCHAR p1)
 {
-    PCHAR p2;
-
-    while (p1 && (p2 = strchr(p1, ' ')))
-    {
-        p2 += 2;
-
-        if (!_strnicmp(p2, "KDSERIAL", 8))
-        {
-            p2 += 8;
+#define CONST_STR_LEN(x) (sizeof(x)/sizeof(x[0]))
+
+    while (p1 && (p1 = strchr(p1, ' ')))
+    {
+        /* Skip other spaces */
+        while (*p1 == ' ') ++p1;
+
+        if (!_strnicmp(p1, "KDSERIAL", CONST_STR_LEN("KDSERIAL")))
+        {
+            p1 += CONST_STR_LEN("KDSERIAL");
             KdbDebugState |= KD_DEBUG_KDSERIAL;
             KdpDebugMode.Serial = TRUE;
         }
-        else if (!_strnicmp(p2, "KDNOECHO", 8))
-        {
-            p2 += 8;
+        else if (!_strnicmp(p1, "KDNOECHO", CONST_STR_LEN("KDNOECHO")))
+        {
+            p1 += CONST_STR_LEN("KDNOECHO");
             KdbDebugState |= KD_DEBUG_KDNOECHO;
         }
-        else if (!_strnicmp(p2, "FIRSTCHANCE", 11))
-        {
-            p2 += 11;
+        else if (!_strnicmp(p1, "FIRSTCHANCE", CONST_STR_LEN("FIRSTCHANCE")))
+        {
+            p1 += CONST_STR_LEN("FIRSTCHANCE");
             KdbpSetEnterCondition(-1, TRUE, KdbEnterAlways);
         }
-
-        p1 = p2;
     }
 }