wincompat.c

嵌入式Linux系统用的web server,开源代码,非常好用

}

/******************************************************************************/
/*
 *	Delete a file.
 */

int _wunlink(char_t *file)
{
	char_t	*cwd, *cwdFile;

	cwdFile = NULL;
	if ((*file != '/') && (*file != '\\')) {
		cwd = balloc(B_L, LF_PATHSIZE);
		ggetcwd(cwd, LF_PATHSIZE / sizeof(char_t));
		fmtAlloc(&cwdFile, LF_PATHSIZE / sizeof(char_t), T("%s/%s"), cwd, file);
		bfree(B_L, cwd);
		file = cwdFile;
	}

	if (DeleteFile(file) != TRUE) {
		bfreeSafe(B_L, cwdFile);
		return -1;
	}
	bfreeSafe(B_L, cwdFile);
	return 0;
}

/******************************************************************************/
/*
 *	Create a new directory
 */

int _wmkdir(const char_t *path)
{
	char_t	*cwd, *cwdPath;

	cwdPath = NULL;
	if ((*path != '/') && (*path != '\\')) {
		cwd = balloc(B_L, LF_PATHSIZE);
		ggetcwd(cwd, LF_PATHSIZE / sizeof(char_t));
		fmtAlloc(&cwdPath, LF_PATHSIZE, T("%s/%s"), cwd, path);
		bfree(B_L, cwd);
		path = cwdPath;
	}

	if (CreateDirectory(path, NULL) == 0) {
		bfreeSafe(B_L, cwdPath);
		return -1;
	}
	bfreeSafe(B_L, cwdPath);
	return 0;
}

/******************************************************************************/
/*
 *	Remove a directory
 */

int _wrmdir(const char_t *path)
{
	char_t	*cwd, *cwdPath;

	cwdPath = NULL;
	if ((*path != '/') && (*path != '\\')) {
		cwd = balloc(B_L, LF_PATHSIZE);
		ggetcwd(cwd, LF_PATHSIZE / sizeof(char_t));
		fmtAlloc(&cwdPath, LF_PATHSIZE, T("%s/%s"), cwd, path);
		bfree(B_L, cwd);
		path = cwdPath;
	}

	if (RemoveDirectory(path) == 0) {
		bfreeSafe(B_L, cwdPath);
		return -1;
	}
	bfreeSafe(B_L, cwdPath);
	return 0;
}

/******************************************************************************/
/*
 *	Get file information about an open file.
 */

int fstat(int fid, struct _stat *sbuf)
{
	BY_HANDLE_FILE_INFORMATION	info;
	long						size;
	fh_t						*fp;

	a_assert(0 <= fid && fid < fMax);
	fp = f[fid];
	if (fp == NULL || fp->hand == INVALID_HANDLE_VALUE) {
		return -1;
	}

	size = GetFileSize(fp->hand, NULL);
	if (size == 0xFFFFFFFF) {
		return -1;
	}
	sbuf->st_size = (int) size;

	if (GetFileInformationByHandle(fp->hand, &info)) {
		if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
			sbuf->st_mode = S_IFDIR;
		} else {
			sbuf->st_mode = S_IFREG;
		}
		sbuf->st_mtime = fileTimeToUnixEpochTime(info.ftLastWriteTime);
		return 0;
	}

	return -1;
}

/******************************************************************************/
/*
 *	Our implementation of wide character stat: get file information.
 */

int _wstat(char_t *filename, struct _stat *sbuf)
{
	DWORD	dwAttributes;
	int		fid, rc;

	memset(sbuf, 0, sizeof(struct _stat));
	dwAttributes = GetFileAttributes(filename);
	if (dwAttributes != 0xFFFFFFFF && dwAttributes & FILE_ATTRIBUTE_DIRECTORY) {
		sbuf->st_mode = S_IFDIR;
		return 0;
	}
	sbuf->st_mode = S_IFREG;

	if ((fid = _wopen(filename, 0, 0)) < 0) {
		return -1;
	}

	rc = fstat(fid, sbuf);
	close(fid);

	return rc;		 
}

/******************************************************************************/
/*
 *	Our implementation of wide character rename: change the name of a file.
 */

int _wrename(const char_t *oldname, const char_t *newname)
{
	char_t	*cwd, *cwdOldname, *cwdNewname;

	cwdOldname = cwd = NULL;
	if ((*oldname != '/') && (*oldname != '\\')) {
		cwd = balloc(B_L, LF_PATHSIZE);
		ggetcwd(cwd, LF_PATHSIZE / sizeof(char_t));
		fmtAlloc(&cwdOldname, LF_PATHSIZE, T("%s/%s"), cwd, oldname);
		oldname = cwdOldname;
	}
	
	cwdNewname = NULL;
	if ((*newname != '/') && (*newname != '\\')) {
		if (cwd != NULL) {
			cwd = balloc(B_L, LF_PATHSIZE);
			ggetcwd(cwd, LF_PATHSIZE / sizeof(char_t));
		}
		fmtAlloc(&cwdNewname, LF_PATHSIZE, T("%s/%s"), cwd, newname);
		newname = cwdNewname;
	}

	if (MoveFile(oldname, newname) == 0) {
		bfreeSafe(B_L, cwdOldname);
		bfreeSafe(B_L, cwdNewname);
		bfreeSafe(B_L, cwd);
		return 1;
	} else {
		bfreeSafe(B_L, cwdOldname);
		bfreeSafe(B_L, cwdNewname);
		bfreeSafe(B_L, cwd);
		return 0;
	}
}

/******************************************************************************/
/*
 *	Our implementation of wide character access: get file access permission.
 */

int _waccess(const unsigned short *path, int mode)
{
	int	fid, omode;

	if (mode == R_OK) {
		omode = O_RDONLY;
	} else if (mode == W_OK) {
		omode = O_RDWR;
	} else {
		a_assert(0);
	}
	if ((fid = _wopen(path, omode)) < 0) {
		return -1;
	}
	close(fid);
	return 0;
}

/******************************************************************************/
/*
 *	Support for stream I/O. The only way we supply a FILE* is via fdopen. In
 *	this case we return the real file handle.
 */

FILE* fdopen(int handle, const unsigned short *mode)
{
	return (FILE*) handle;
}

#if 0
int fclose(FILE *stream)
{
	fh_t	*fp;
	int		fid;

	for (fid = 0; fid > fMax; fid++) {
		if ((fp = f[fid]) != NULL) {
			if (fp->hand == stream) {
				close(fid);
				return 0;
			}
		}
	}
	return EOF;
}

int fflush(FILE* stream)
{
	return 0;
}
#endif /* 0 */

/******************************************************************************/
/*
 * lseek  -  position a file.
 */
long lseek(int handle, long offset, int origin)
{
	fh_t	*fp;

	fp = f[handle];
	return SetFilePointer(fp->hand, offset, NULL, origin);
}

/******************************************************************************/
/*
 *	A bunch of ASCII character routines.
 */

/******************************************************************************/
/*
 *	Our implementation of isupper.
 */
#if 0
/* 10 Apr 03 BgP -- CE.NET work. The following functions are now directly supported by CE, 
   so we do not need these compatibility versions.
*/
int isupper(int c)
{
	if (c >= 'A' && c <= 'Z') {
		return 1;
	}
	return 0;
}

/******************************************************************************/
/*
 *	Our implementation of islower.
 */

int islower(int c)
{
	if (c >= 'a' && c <= 'z') {
		return 1;
	}
	return 0;
}

/******************************************************************************/
/*
 *	Our implementation of isdigit.
 */

int isdigit(int c)
{
	if (c >= '0' && c <= '9') {
		return 1;
	}
	return 0;
}

/******************************************************************************/
/*
 *	Our implementation of isspace.
 */

int isspace(int c)
{
	if (c >= 0x9 && c <= 0xd || c == 0x20) {
		return 1;
	}
	return 0;
}

/******************************************************************************/
/*
 *	Our implementation of isprint.
 */

int isprint(int c)
{
	if (c >= 0x20 && c <= 0x7e) {
		return 1;
	}
	return 0;
}

/******************************************************************************/
/*
 *	Our implementation of isxdigit.
 */

int isxdigit(int c)
{
	if ((c >= '0' && c <= '9') ||
		(c >= 'a' && c <= 'f') ||
		(c >= 'A' && c <= 'F')) {
		return 1;
	}
	return 0;
}

#endif

/******************************************************************************/
#ifndef LITTLEFOOT
int umask(int mode)
{
	return 0;
}
#endif

/******************************************************************************/
/*
 * If the application needs wprintf functionality, insert it here.
 */
#if 0
int wprintf(const char_t *fmt, ...)
{
	return 0;
}
#endif

#if 0
int fwprintf(FILE *stream, const char_t *fmt, ...)
{
	return 0;
}

int fputws(const char_t *fmt, FILE *stream)
{
	return 0;
}
#endif /* 0 */

#ifndef LITTLEFOOT
int _wexecvp(char_t *path, char_t** argv)
{
	return -1;
}
#endif

/******************************************************************************/
/*
 *	Return the current working directory
 */

char_t *_wgetcwd(char_t *dir, int len)
{
	if (len > LF_PATHSIZE) {
		return NULL;
	} else {
		return wcscpy(dir, ceCwd);
	}
}

/******************************************************************************/
/*
 *	Change the current working directory
 */

int _wchdir(unsigned short *path)
{
	char_t	*p;
	char_t	buf[LF_PATHSIZE];
	int		len;
	gstat_t	statDir;

/*
 *	Ignore leading spaces
 */
	while(*path == ' ') {
		path++;
	}

	if (path == NULL || *path == '\0') {
		return -1;
	} else if ((*path == '/') || (*path == '\\')) {
		 wcscpy(ceCwd, path);
	} else {
/*
 *		Otherwise, it's a relative path.  Combine with current path.
 *		Append a '/' if the last character is not already a '/'.
 *		Check for leading "./" or "../" and back up the cwd accordingly.
 */

		for (p = path; *p; p++) {
			if (*p == '\\') {
				*p = '/';
			}
		}

		gstrcpy(buf, ceCwd);
		for (p = buf; *p; p++) {
			if (*p == '\\') {
				*p = '/';
			}
		}

		if (*path == '.' && *(path+1) == '/') {
			path++;
			while (*path == '/') {
				path++;
			}
		}
		while (*path == '.' && *(path+1) == '.') {
			path += 2;
			if ((p = wcsrchr(buf, '/')) == NULL) {
				return -1;
			}
			*p = '\0';
			if (*path == '\0') {
				break;
			}
			if (*path != '/') {
				return -1;
			}
			while (*path == '/') {
				path++;
			}
		}
/*
 *		Ignore leading spaces and dots
 */
		while(*path == '.' || *path == ' ') {
			path++;
		}

/*
 *		Append to cwd.
 */
		len = wcslen(buf);
		if (*(buf + len - 1) != '/') {
			*(buf + len) = '/';
			*(buf + len + 1) = '\0';
			len++;
		}
		if ((len + gstrlen(path) + 1) > LF_PATHSIZE ) {
			return -1;
		}
		gstrcpy(buf+len, path);

		if (_wstat(buf, &statDir) == -1) {
			return -1;
		}
		gstrcpy(ceCwd, buf);
	}
	return 0;
}

/******************************************************************************/
/*
 *	Change the file-permission settings
 */

int _wchmod(const char_t *filename, int pmode)
{
	return 0;
}

/******************************************************************************/