/*
 * ----------------------------------------------------------------------------
 * nmakehlp.c --
 *
 *	This is used to fix limitations within nmake and the environment.
 *
 * Copyright (c) 2002 David Gravereaux.
 * Copyright (c) 2006 Pat Thoyts
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 * ----------------------------------------------------------------------------
 */

#define _CRT_SECURE_NO_DEPRECATE

#if defined(_M_IA64) || defined(_M_AMD64)
#if _MSC_VER >= 1400 && _MSC_VER < 1500
#pragma comment(lib, "bufferoverflowU")
#endif
#endif

/* ISO hack for dumb VC++ */
#if defined(_WIN32) && defined(_MSC_VER) && _MSC_VER < 1900
#define   snprintf	_snprintf
#endif


/* protos */

static int CheckForCompilerFeature(const char *option);

    char msg[300];
    BOOL ok;
    HANDLE hProcess, h, pipeThreads[2];
    char cmdline[100];

    hProcess = GetCurrentProcess();

    memset(&pi, 0, sizeof(PROCESS_INFORMATION));
    memset(&si, 0, sizeof(STARTUPINFO));
    si.cb = sizeof(STARTUPINFO);
    si.dwFlags   = STARTF_USESTDHANDLES;
    si.hStdInput = INVALID_HANDLE_VALUE;

    memset(&sa, 0, sizeof(SECURITY_ATTRIBUTES));
    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = FALSE;

    /*
     * Create a non-inheritable pipe.
     */

    CreatePipe(&Out.pipe, &h, &sa, 0);

    /*
     * Dupe the write side, make it inheritable, and close the original.
     */

    DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);

    /*
     * Same as above, but for the error side.

    BOOL ok;
    HANDLE hProcess, h, pipeThreads[2];
    int i;
    char cmdline[255];

    hProcess = GetCurrentProcess();

    memset(&pi, 0, sizeof(PROCESS_INFORMATION));
    memset(&si, 0, sizeof(STARTUPINFO));
    si.cb = sizeof(STARTUPINFO);
    si.dwFlags   = STARTF_USESTDHANDLES;
    si.hStdInput = INVALID_HANDLE_VALUE;

    memset(&sa, 0, sizeof(SECURITY_ATTRIBUTES));
    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = TRUE;

    /*
     * Create a non-inheritible pipe.
     */

    CreatePipe(&Out.pipe, &h, &sa, 0);

    /*
     * Dupe the write side, make it inheritable, and close the original.
     */

    DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);

    /*
     * Same as above, but for the error side.

    }
}

/*
 * SubstituteFile --
 *	As windows doesn't provide anything useful like sed and it's unreliable
 *	to use the tclsh you are building against (consider x-platform builds -
 *	e.g. compiling AMD64 target from IX86) we provide a simple substitution
 *	option here to handle autoconf style substitutions.
 *	The substitution file is whitespace and line delimited. The file should
 *	consist of lines matching the regular expression:
 *	  \s*\S+\s+\S*$
 *
 *	Usage is something like:
 *	  nmakehlp -S << $** > $@

    list_item_t *substPtr = NULL;
    FILE *fp, *sp;

    fp = fopen(filename, "rt");
    if (fp != NULL) {

	/*
	 * Build a list of substitutions from the first filename
	 */

	sp = fopen(substitutions, "rt");
	if (sp != NULL) {
	    while (fgets(szBuffer, sizeof(szBuffer), sp) != NULL) {
		unsigned char *ks, *ke, *vs, *ve;
		ks = (unsigned char*)szBuffer;

{
    HANDLE hSearch;
    char path[MAX_PATH+1];
    size_t dirlen;
    int keylen, ret;
    WIN32_FIND_DATA finfo;

    if (dir == NULL || keypath == NULL) {
	return 2; /* Have no real error reporting mechanism into nmake */
    }
    dirlen = strlen(dir);
    if (dirlen > sizeof(path) - 3) {
	return 2;
    }
    strncpy(path, dir, dirlen);
    strncpy(path+dirlen, "\\*", 3);	/* Including terminating \0 */
    keylen = strlen(keypath);

#if 0 /* This function is not available in Visual C++ 6 */
    /*
     * Use numerics 0 -> FindExInfoStandard,

{
    size_t i;
    int ret;
    static const char *paths[] = {"..", "..\\..", "..\\..\\.."};

    for (i = 0; i < (sizeof(paths)/sizeof(paths[0])); ++i) {
	ret = LocateDependencyHelper(paths[i], keypath);
	if (ret == 0) {
	    return ret;
	}
    }
    return ret;
}


/*
 * Local variables: