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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
startup.c
Abstract:
This module contains the startup code for an NT Application
Author:
Steve Wood (stevewo) 22-Aug-1989
Environment:
User Mode only
Revision History:
--*/
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
//
// User mode process entry point.
//
NTSTATUS
_CRTAPI1
main(
int argc,
char *argv[],
char *envp[],
ULONG DebugParameter OPTIONAL
);
VOID
NtProcessStartup(
PPEB Peb
)
{
int argc;
char **argv;
char **envp;
char **dst;
char *nullPtr = NULL;
PCH s, d;
ULONG n, DebugParameter;
PULONG BadPointer;
PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
PUNICODE_STRING p;
ANSI_STRING AnsiString;
ASSERT( Peb != NULL );
ProcessParameters = RtlNormalizeProcessParams( Peb->ProcessParameters );
DebugParameter = 0;
argc = 0;
argv = &nullPtr;
envp = &nullPtr;
if (ARGUMENT_PRESENT( ProcessParameters )) {
DebugParameter = ProcessParameters->DebugFlags;
dst = RtlAllocateHeap( Peb->ProcessHeap, 0, 512 * sizeof( PCH ) );
argv = dst;
*dst = NULL;
//
// Now extract the arguments from the process command line.
// using whitespace as separator characters.
//
p = &ProcessParameters->CommandLine;
if (p->Buffer == NULL || p->Length == 0) {
p = &ProcessParameters->ImagePathName;
}
RtlUnicodeStringToAnsiString( &AnsiString, p, TRUE );
s = AnsiString.Buffer;
n = AnsiString.Length;
if (s != NULL) {
d = RtlAllocateHeap( Peb->ProcessHeap, 0, n+2 );
while (*s) {
//
// Skip over any white space.
//
while (*s && *s <= ' ') {
s++;
}
//
// Copy token to next white space separator and null terminate
//
if (*s) {
*dst++ = d;
argc++;
while (*s > ' ') {
*d++ = *s++;
}
*d++ = '\0';
}
}
}
*dst++ = NULL;
envp = dst;
s = ProcessParameters->Environment;
if (s != NULL) {
while (*s) {
*dst++ = s;
while (*s++) {
;
}
}
}
*dst++ = NULL;
}
if (DebugParameter != 0) {
DbgBreakPoint();
}
NtTerminateProcess( NtCurrentProcess(),
main( argc, argv, envp, DebugParameter )
);
BadPointer = (PULONG)1;
*BadPointer = 0;
}
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