int main (int argc, char *argv[])
{
DIRST
dir;
char
*directory,
*filename,
*slash;
if (argc == 1 || streq (argv [1], "/?")) {
puts ("dos2unix - part of the iMatix RealiBase Gaggle");
puts ("Strip CR characters from text file.\n");
puts ("syntax: dos2unix [/?] [filename]");
puts (" /? - show help on command");
puts (" filename - file to expand");
exit (0);
}
filename = argv [1];
if (strchr (filename, '*') || strchr (filename, '?'))
{
directory = mem_strdup (filename);
slash = strrchr (directory, '\\');
if (!slash)
slash = strrchr (directory, '/');
if (!slash)
directory = ".";
else
{
*slash = '\0';
filename = slash + 1;
}
if (open_dir (&dir, directory)) do
{
if ((dir.file_attrs & ATTR_HIDDEN) == 0
&& (dir.file_attrs & ATTR_SUBDIR) == 0)
if (file_matches (dir.file_name, filename))
convert (directory, dir.file_name);
}
while (read_dir (&dir));
close_dir (&dir);
}
else
convert (".", filename);
exit (0);
}
int fchdir(int fd)
{
struct DIR_FILE * dirf = &dir_file_list[fd];
int olddir_handle;
if (dirf->flags & FTABLE_FLAGS_DIR)
{
if (dirf->device == fileinf->current_drive)
{
olddir_handle = get_curdir_handle(fileinf->current_drive);
increment_ref_count(fd);
set_drive_curdir(dirf->device, fd);
close_dir(olddir_handle);
return 0;
}
else return EINVALID_ARGUMENT;
}
else return EINVALID_DIR_INDEX;
}
int processing(char *path1, char *path2)
{
DIR *dir1, *dir2;
DIRENT *curPath1, *curPath2;
STAT curInfo1, curInfo2;
char pathName1[PATH_MAX], pathName2[PATH_MAX];
int cmpFlag = 0, N = 0;
pid_t pid;
dir1 = dir2 = NULL;
curPath1 = curPath2 = NULL;
open_dir(&dir1, path1);
open_dir(&dir2, path2);
if (dir1 == NULL) {
return 0;
}
errno = 0;
while ((curPath1 = readdir(dir1)) != NULL) {
if ((!strcmp((*curPath1).d_name, ".")) || (!strcmp((*curPath1).d_name, ".."))) {
continue;
}
// full PATH
sprintf(pathName1, "%s/%s", path1, (*curPath1).d_name);
if (stat(pathName1, &curInfo1) == 0) {
if (S_ISDIR(curInfo1.st_mode)) {
continue;
}
else {
/////////////////////////////////////////////////////////////////////////////////////
cmpFlag = 0;
rewinddir(dir2);
errno = 0;
while ((curPath2 = readdir(dir2)) != NULL) {
if ((!strcmp((*curPath2).d_name, ".")) || (!strcmp((*curPath2).d_name, ".."))) {
continue;
}
// full PATH
sprintf(pathName2, "%s/%s", path2, (*curPath2).d_name);
if (stat(pathName2, &curInfo2) == 0) {
if (S_ISDIR(curInfo2.st_mode)) {
continue;
}
else {
/////////////////////////////////////////////////////////////////////////////////////
if (strcmp((*curPath1).d_name, (*curPath2).d_name) == 0) {
cmpFlag = 1;
break;
}
//////////////////////////////////////////////////////////////////////////////////////
}
}
else {
fprintf(stderr, "%s: %s: %s\n", program, strerror(errno), pathName2);
}
errno = 0;
}
if (errno) {
fprintf(stderr, "%s: %s: %s\n", program, strerror(errno), pathName2);
}
//////////////////////////////////////////////////////////////////////////////////////
}
}
else {
fprintf(stderr, "%s: %s: %s\n", program, strerror(errno), pathName2);
}
////////////////////COPYYYYYYYYYYYYYYYYY/////////////////////////
if (!cmpFlag) {
if ((pid = fork()) == 0) {
printf("%d: %s: %ldb\n", getpid(), pathName1, curInfo1.st_size);
execlp("cp", program, pathName1, path2, NULL);
break;
}
else {
//printf("COUNT FORKS: %d\n", N);
if (pid > 0) {
//waitpid(pid, NULL, 0);
if (N >= maxN) {
wait(NULL);
N--;
}
else {
N++;
}
}
else {
if (pid == -1) {
fprintf(stderr, "%s: %s: %s\n", program, strerror(errno), pathName2);
}
}
}
}
errno = 0;
}
if (errno) {
fprintf(stderr, "%s: %s: %s\n", program, strerror(errno), pathName1);
}
close_dir(&dir1, path1);
close_dir(&dir2, path2);
return 0;
}
TA_RetCode TA_DirectoryAlloc( const char *path,
TA_Directory **directory )
{
#if defined( USE_WIN32_API )
HANDLE handle;
WIN32_FIND_DATA data;
DWORD win32Error;
#endif
#if defined( USE_OSLAYER )
DIRST dirHandle;
const char *filePattern;
char *basePath;
#endif
unsigned pathLength;
int findNextRetCode;
TA_Directory *dir;
TA_String *string;
TA_RetCode retCode;
TA_SystemGlobal *global;
const char *entryName;
unsigned int entryIsDirectory;
*directory = NULL;
if( (path == NULL) || (directory == NULL) )
return TA_BAD_PARAM;
retCode = TA_GetGlobal( &TA_SystemGlobalControl, (void **)&global );
if( retCode != TA_SUCCESS )
return retCode;
dir = (TA_Directory *)TA_Malloc( sizeof( TA_Directory ) );
if( dir == NULL )
return TA_ALLOC_ERR;
dir->nbFile = 0;
dir->nbDirectory = 0;
dir->listOfFile = TA_ListAlloc();
dir->listOfDirectory = TA_ListAlloc();
if( (dir->listOfFile == NULL) || (dir->listOfDirectory == NULL) )
{
TA_DirectoryFree( dir );
return TA_ALLOC_ERR;
}
/* Verify that the path is valid. */
pathLength = strlen( path );
if( (pathLength == 0) || (pathLength >= MAX_PATH) )
{
TA_DirectoryFree( dir );
return TA_BAD_PARAM;
}
/* Now get the directory from the operating system. */
#if defined( USE_WIN32_API )
handle = FindFirstFile( path, &data );
if( handle == INVALID_HANDLE_VALUE )
{
win32Error = GetLastError();
global->lastError = win32Error;
if( (win32Error != ERROR_FILE_NOT_FOUND) &&
(win32Error != ERROR_PATH_NOT_FOUND) )
{
TA_DirectoryFree( dir );
return TA_ACCESS_FAILED;
}
/* No files or directory... but still have to pass the result
* to the caller.
*/
*directory = dir;
return TA_SUCCESS;
}
entryName = data.cFileName;
entryIsDirectory = data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
#endif
#if defined( USE_OSLAYER )
/* Split the path into the basePath and the filePattern. */
basePath = TA_Malloc( pathLength+1 );
memcpy( basePath, path, pathLength+1 );
filePattern = split_path_and_file( basePath );
if( !filePattern )
{
/* With no filePattern, no file can be found...
* so return an empty directory to the caller.
*/
*directory = dir;
TA_Free( basePath );
return TA_SUCCESS;
}
/* Look for last separetor. */
if( !open_dir(&dirHandle, basePath ) )
{
/* Errors, or no files or no directory... but
* still have to pass the result to the caller.
*/
TA_Free( basePath );
*directory = dir;
return TA_SUCCESS;
}
entryName = dirHandle.file_name;
entryIsDirectory = dirHandle.file_attrs & ATTR_SUBDIR;
#endif
do
{
#if defined( USE_OSLAYER )
if( file_matches( entryName, filePattern ) )
{
#endif
if( entryIsDirectory )
{
if( entryName[0] != '.' )
{
string = TA_StringAlloc( global->dirnameCache, entryName );
if( string == NULL )
{
#if defined( USE_OSLAYER )
close_dir(&dirHandle);
TA_Free( basePath );
#endif
TA_DirectoryFree( dir );
return TA_ALLOC_ERR;
}
retCode = TA_ListAddTail( dir->listOfDirectory, (void *)string );
if( retCode != TA_SUCCESS )
{
#if defined( USE_OSLAYER )
close_dir(&dirHandle);
TA_Free( basePath );
#endif
TA_DirectoryFree( dir );
return retCode;
}
dir->nbDirectory++;
}
}
else
{
string = TA_StringAlloc( global->filenameCache, entryName );
if( string == NULL )
{
#if defined( USE_OSLAYER )
close_dir(&dirHandle);
TA_Free( basePath );
#endif
TA_DirectoryFree( dir );
return TA_ALLOC_ERR;
}
retCode = TA_ListAddTail( dir->listOfFile, (void *)string );
if( retCode != TA_SUCCESS )
{
#if defined( USE_OSLAYER )
close_dir(&dirHandle);
TA_Free( basePath );
#endif
TA_DirectoryFree( dir );
return retCode;
}
dir->nbFile++;
}
#if defined( USE_OSLAYER )
}
#endif
#if defined( USE_WIN32_API )
findNextRetCode = FindNextFile( handle, &data );
entryName = data.cFileName;
entryIsDirectory = data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
#endif
#if defined( USE_OSLAYER )
findNextRetCode = read_dir( &dirHandle );
entryName = dirHandle.file_name;
entryIsDirectory = dirHandle.file_attrs & ATTR_SUBDIR;
#endif
}
while( findNextRetCode == TRUE );
#if defined( USE_OSLAYER )
TA_Free( basePath );
if( !close_dir(&dirHandle) )
{
TA_DirectoryFree( dir );
return TA_INTERNAL_ERROR(11);
}
#endif
#if defined( USE_WIN32_API )
if( FindClose( handle ) != TRUE )
{
global->lastError = GetLastError();
TA_DirectoryFree( dir );
return TA_INTERNAL_ERROR(12);
}
#endif
/* Pass the result to the caller. */
*directory = dir;
return TA_SUCCESS;
}
void dir_cnt_clean(dir_cnt *d)
{
dir_cnt_free_cnt(d);
close_dir(d);
}
FBCALL FBSTRING *fb_Dir( FBSTRING *filespec, int attrib, int *out_attrib )
{
FB_DIRCTX *ctx;
FBSTRING *res;
ssize_t len;
int tmp_attrib;
char *name, *p;
struct stat info;
if( out_attrib == NULL )
out_attrib = &tmp_attrib;
len = FB_STRSIZE( filespec );
name = NULL;
ctx = FB_TLSGETCTX( DIR );
if( len > 0 )
{
/* findfirst */
if( ctx->in_use )
close_dir( );
if( strchr( filespec->data, '*' ) || strchr( filespec->data, '?' ) )
{
/* we have a pattern */
p = strrchr( filespec->data, '/' );
if( p )
{
strncpy( ctx->filespec, p + 1, MAX_PATH );
ctx->filespec[MAX_PATH-1] = '\0';
len = (p - filespec->data) + 1;
if( len > MAX_PATH - 1 )
len = MAX_PATH - 1;
memcpy( ctx->dirname, filespec->data, len );
ctx->dirname[len] = '\0';
}
else
{
strncpy( ctx->filespec, filespec->data, MAX_PATH );
ctx->filespec[MAX_PATH-1] = '\0';
strcpy( ctx->dirname, "./");
}
/* Make sure these patterns work just like on Win32/DOS */
if( (!strcmp( ctx->filespec, "*.*" )) || (!strcmp( ctx->filespec, "*." )) )
strcpy( ctx->filespec, "*" );
if( (attrib & 0x10) == 0 )
attrib |= 0x20;
ctx->attrib = attrib;
ctx->dir = opendir( ctx->dirname );
if( ctx->dir )
{
name = find_next( out_attrib );
if( name )
ctx->in_use = TRUE;
}
}
else
{
/* no pattern, use stat on single file */
if( !stat( filespec->data, &info ) )
{
tmp_attrib = get_attrib( filespec->data, &info );
if( (tmp_attrib & ~attrib ) == 0 )
{
name = strrchr( filespec->data, '/' );
if( !name )
name = filespec->data;
else
name++;
*out_attrib = tmp_attrib;
}
}
}
}
else
{
/* findnext */
if( ctx->in_use )
name = find_next( out_attrib );
}
FB_STRLOCK();
/* store filename if found */
if( name ) {
len = strlen( name );
res = fb_hStrAllocTemp_NoLock( NULL, len );
if( res )
fb_hStrCopy( res->data, name, len );
else
res = &__fb_ctx.null_desc;
} else {
res = &__fb_ctx.null_desc;
*out_attrib = 0;
}
fb_hStrDelTemp_NoLock( filespec );
FB_STRUNLOCK();
return res;
}
/*创建新的目录项*/
int make_file(int inode, char* name, int type)
{
char original_name_path[30];
int original_inode = inode_num;//记录当前的inode
strcpy(original_name_path, name);
if (eat_path(name) == -1) {
if (type == File)
printf("touch: cannot touch‘%s’: No such file or directory\n", original_name_path);
if (type == Directory)
printf("mkdir: cannot create directory ‘%s’: No such file or directory\n", original_name_path);
return -1;
}
int new_node;
int blk_need = 1;//本目录需要增加磁盘块则blk_need=2
int t;
Inode temp;
/*读取当前目录的Inode*/
fseek(Disk, InodeBeg + sizeof(Inode)*inode, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (temp.access[1] == 0) { //当前目录不允许写
if (type == Directory)
printf("mkdir: cannot create directory ‘%s’: Permission denied\n", original_name_path);
if (type == File)
printf("touch: cannot touch ‘%s’: Permission denied\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (dir_num>MaxDirNum) {//超过了目录文件能包含的最大目录项
if (type == Directory)
printf("mkdir: cannot create directory '%s' : Directory full\n", original_name_path);
if (type == File)
printf("touch: cannot create file '%s' : Directory full\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (check_name(inode, name) != -1) {//防止重命名
if (type == Directory)
printf("mkdir: cannnot create directory '%s' : Directory exist\n", original_name_path);
if (type == File)
printf("touch: cannot create file '%s' : File exist\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (dir_num / DirPerBlk != (dir_num + 1) / DirPerBlk) {//本目录也要增加磁盘块
blk_need = 2;
}
// printf("blk_used:%d\n",super_blk.blk_used);
if (super_blk.blk_used + blk_need>BlkNum) {
if (type == Directory)
printf("mkdir: cannot create directory '%s' :Block used up\n", original_name_path);
if (type == File)
printf("touch: cannot create file '%s' : Block used up\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (blk_need == 2) {//本目录需要增加磁盘块
t = curr_inode.blk_num++;
curr_inode.blk_identifier[t] = get_blk();
}
/*申请inode*/
new_node = apply_inode();
if (new_node == -1) {
if (type == Directory)
printf("mkdir: cannot create directory '%s' :Inode used up\n", original_name_path);
if (type == File)
printf("touch: cannot create file '%s' : Inode used up\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (type == Directory) {
/*初始化新建目录的inode*/
init_dir_inode(new_node, inode);
}
else if (type == File) {
/*初始化新建文件的inode*/
init_file_inode(new_node);
}
strcpy(dir_table[dir_num].name, name);
dir_table[dir_num++].inode_num = new_node;
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return 0;
}
int remove_file(int inode, char* name, int deepth, int type)
{
char original_name_path[30];
int original_inode = inode_num;//记录当前的inode
strcpy(original_name_path, name);
if (eat_path(name) == -1) {
if (type == Directory)
printf("rmdir: failed to remove‘%s’: No such file or directory\n", original_name_path);
if (type == File)
printf("rm: cannot remove‘%s’: No such file or directory\n", original_name_path);
return -1;
}
int check_type_result = type_check(name);
if (check_type_result == -1) {//要删除的文件不存在
if (type == Directory)
printf("rmdir: failed to remove '%s': No such file or directory\n", original_name_path);
if (type == File)
printf("rm: cannot remove '%s': No such file or directory\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
Inode father_inode;
/*读取要删除的目录或文件的父目录的Inode*/
fseek(Disk, InodeBeg + sizeof(Inode)*inode_num, SEEK_SET);
fread(&father_inode, sizeof(father_inode), 1, Disk);
if (father_inode.access[1] == 0) { //要删除的目录或文件的父目录不允许写
if (type == Directory)
printf("rmdir: failed to remove ‘%s’: Permission denied\n", original_name_path);
if (type == File)
printf("rm: cannot remove‘%s’: Permission denied\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (check_type_result == Directory && type == File) {//删除的文件类型与对应指令不符，如：尝试用rm删除目录
printf("rm: cannot remove '%s': Not a file\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (check_type_result == File && type == Directory) {//删除的文件类型与对应指令不符，如:用rmdir删除文件
printf("rmdir: failed to remove '%s': Not a directory\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
del_file(inode_num, name, 0);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return 0;
}
int open_path(int drive, const char *path) // Opening the directory(s)...
{
int i, j, curdir_handle, new_handle;
char name_comp[13], conv_name[11];
// Open the directory component
i =0;
if (path[0] == '/' || path[0] == '\\') // Absolute path
{
curdir_handle = root_handle(drive);
i = 1;
}
else curdir_handle = get_curdir_handle(drive);
// Increment the reference count
increment_ref_count(curdir_handle);
while (path[i] != 0)
{
j = 0;
while (j < 12 && path[i] != 0 && path[i] != '/' && path[i] != '\\')
{
name_comp[j] = path[i];
j++; i++;
}
if (path[i] != 0) i++;
name_comp[j] = 0;
if (strcmp(name_comp,".") == 0) continue;
else if (strcmp(name_comp,"..") == 0)
{
new_handle = get_parent_handle(curdir_handle);
if (new_handle >= 0)
increment_ref_count(new_handle);
}
else
{
// Open that directory component
if (convert_name(name_comp, conv_name) < 0)
{
close_dir(curdir_handle);
return EINVALIDNAME; // Error
}
new_handle = open_dir(curdir_handle, conv_name);
}
if (new_handle < 0)
{
close_dir(curdir_handle);
return new_handle; // Error
}
close_dir(curdir_handle); // Effectively decrease the
// reference count to 1 less.
curdir_handle = new_handle;
}
// Successfully opened the path
return curdir_handle;
}
int syscall_rename(const char *a_oldpath, const char *a_newpath)
{
int ohandle, nhandle;
int drive1, drive2;
char dir_path1[512], dir_path2[512];
char name_comp1[13], name_comp2[13], conv_name1[11], conv_name2[11];
char oldpath[512], newpath[512];
struct dir_entry dent1, dent2;
int exist1, exist2;
struct DIR_FILE *dirf;
int len1, len2;
int i,t;
len1 = strlen(a_oldpath);
len2 = strlen(a_newpath);
if (len1 > 512 || len2 > 512) return ELONGPATH;
strcpy(oldpath,a_oldpath);
strcpy(newpath,a_newpath);
if (oldpath[len1-1] == '/' || oldpath[len1-1] == '\\') oldpath[len1-1] = '\0';
if (newpath[len2-1] == '/' || newpath[len2-1] == '\\') newpath[len2-1] = '\0';
parse_path(oldpath, &drive1, dir_path1, name_comp1);
parse_path(newpath, &drive2, dir_path2, name_comp2);
if (drive1 != drive2) return EDEVICE_DIFFERENT;
nhandle = open_path(drive2, dir_path2);
if (nhandle < 0) return nhandle;
if (name_comp2[0] !='\0')
{
if (convert_name(name_comp2, conv_name2) < 0)
{
close_dir(nhandle);
return EINVALIDNAME; // Error
}
exist2 = find_entry(nhandle, conv_name2, &dent2);
}
ohandle = open_path(drive1, dir_path1);
if (ohandle < 0)
{
close_dir(nhandle);
return ohandle;
}
if (name_comp1[0] != '\0')
{
if (convert_name(name_comp1, conv_name1) < 0)
{
close_dir(nhandle);
close_dir(ohandle);
return EINVALIDNAME; // Error
}
exist1 = find_entry(ohandle, conv_name1, &dent1);
}
// Check whether new path exists and is removable
if ((exist2 == 1) && ((dent2.attrib & FTYPE_READONLY) || ((dent2.attrib & FTYPE_DIR) && (empty_dir(nhandle, &dent2) != 1))))
{
close_dir(nhandle);
close_dir(ohandle);
return ETARGET_EXISTS;
}
// Check if source exists and is movable
if (exist1 != 1)
{
close_dir(nhandle);
close_dir(ohandle);
return EPATH_NOT_EXISTS;
}
if ((dent1.attrib & FTYPE_READONLY) != 0)
{
close_dir(nhandle);
close_dir(ohandle);
return EREADONLY;
}
// Check whether oldpath is not a subpath of newpath
if ((dent1.attrib & FTYPE_DIR) && (ohandle != nhandle))
{
t = nhandle;
dirf = &dir_file_list[t];
while (dirf->parent_index >= 0 && dirf->parent_index != ohandle)
{
t = dirf->parent_index;
dirf = &dir_file_list[t];
}
if (dirf->parent_index == ohandle)
{
close_dir(nhandle);
close_dir(ohandle);
return EOLDPATH_PARENT_OF_NEWPATH;
}
}
// Check if newpath already exists whether it is compatible or not
if ((exist2 == 1) && (((dent1.attrib & FTYPE_DIR) != 0 && (dent2.attrib & FTYPE_DIR) == 0) || ((dent1.attrib & FTYPE_DIR) == 0 && (dent2.attrib & FTYPE_DIR) != 0)))
{
close_dir(nhandle);
close_dir(ohandle);
return ESRC_DEST_NOT_SAME_TYPE;
}
// Remove destination entry if exists
if (exist2 == 1)
{
if (dent2.attrib & FTYPE_DIR)
syscall_rmdir(newpath);
else syscall_unlink(newpath);
}
// Add the source dir entry after changing the name
// to destination directory
bcopy( (char *)&dent1, (char *)&dent2, sizeof(struct dir_entry));
for (i=0; i<11; i++) // Both name and extension
dent2.name[i] = conv_name2[i];
t = add_dir_entry(nhandle, &dent2);
if (t == 1)
{
delete_dir_entry(ohandle, dent1.name);
}
// Close the handles of parent directories
close_dir(ohandle);
close_dir(nhandle);
if (t == 1) return 0;
else return t;
}
int file_edit(char* name)
{
char original_name_path[30];
int original_inode = inode_num;//记录当前的inode
strcpy(original_name_path, name);
if (eat_path(name) == -1) {
printf("错误：文件路径出错！‘%s’\n", original_name_path);
return -1;
}
if (type_check(name) == Directory) {
printf("错误：'%s'文件不存在！\n", name);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (type_check(name) == -1) {
printf("错误：'%s'文件不存在！\n", name);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (file_read(name) == -1) {//文件读取失败
printf("错误：无读写‘%s’文件权限！\n", name);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
BuffModifyTimeBeforeEdit = getBuffModifyTime();//文件信息载入到buff.txt后，获取buff.txt的修改时间，用来判断载入的内容在记事本中是否被修改
/*
SYSTEMTIME *STime = new SYSTEMTIME;
FileTimeToSystemTime(&BuffModifyTimeBeforeEdit, STime);
printf("%d-%d-%d-%d-%d-%d\n", STime->wYear, STime->wMonth, STime->wDay, STime->wHour, STime->wMinute, STime->wSecond);
*/
STARTUPINFO si;
PROCESS_INFORMATION pi;
LPTSTR szCmdline = _tcsdup(TEXT("notepad.exe buff.txt"));
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// 打开子进程
if (!CreateProcess(NULL, // No module name (use command line)
szCmdline, // Command line
NULL, // Process handle not inheritable
NULL, // Thread handle not inheritable
FALSE, // Set handle inheritance to FALSE
0, // No creation flags
NULL, // Use parent's environment block
NULL, // Use parent's starting directory
&si, // Pointer to STARTUPINFO structure
&pi) // Pointer to PROCESS_INFORMATION structure
)
{
printf("CreateProcess failed (%d).\n", GetLastError());
return 0;
}
// Wait until child process exits.
WaitForSingleObject(pi.hProcess, INFINITE);
// Close process and thread handles.
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
Sleep(10);
BuffModifyTimeAfterEdit = getBuffModifyTime();//buff.txt关闭后，获取buff.txt的修改时间，用来判断载入的内容在记事本中是否被修改
/*
SYSTEMTIME *STime = new SYSTEMTIME;
FileTimeToSystemTime(&BuffModifyTimeAfterEdit, STime);
printf("%d-%d-%d-%d-%d-%d\n", STime->wYear, STime->wMonth, STime->wDay, STime->wHour, STime->wMinute, STime->wSecond);
*/
if (BuffModifyTimeBeforeEdit.dwLowDateTime == BuffModifyTimeAfterEdit.dwLowDateTime
&& BuffModifyTimeBeforeEdit.dwHighDateTime == BuffModifyTimeAfterEdit.dwHighDateTime) {
//若buff.txt的修改时间没有发生变化。则载入记事本的内容没有发生改变，则不必重新写入
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
if (file_write(name) == -1) { //将数据从BUFF写入文件
printf("错误：文件类型为只读，无法修改！\n");
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return 0;
}
/*修改文件读写权限*/
int change_mode(char* parameter, char* name)
{
int inode;
Inode temp;
char original_name_path[30];
int original_inode = inode_num;//记录当前的inode
strcpy(original_name_path, name);
if (eat_path(name) == -1) {
printf("chmod: cannot access‘%s’: No such file or directory\n", original_name_path);
return -1;
}
inode = check_name(inode_num, name);
if (inode == -1) {
printf("stat: cannot stat '%s': No such file or directory\n", original_name_path);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return -1;
}
fseek(Disk, InodeBeg + sizeof(Inode)*inode, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (strcmp(parameter, "+r") == 0) {
temp.access[0][user_num] = 1;
temp.i_ctime = time(NULL);
}
else if (strcmp(parameter, "-r") == 0) {
temp.access[0][user_num] = 0;
temp.i_ctime = time(NULL);
}
else if (strcmp(parameter, "+w") == 0) {
temp.access[1][user_num] = 1;
temp.i_ctime = time(NULL);
}
else if (strcmp(parameter, "-w") == 0) {
temp.access[1][user_num] = 0;
temp.i_ctime = time(NULL);
}
else if (strcmp(parameter, "+x") == 0) {
temp.access[2][user_num] = 1;
temp.i_ctime = time(NULL);
}
else if (strcmp(parameter, "-x") == 0) {
temp.access[2][user_num] = 0;
temp.i_ctime = time(NULL);
}
else {
printf("chmod: invalid option -- '%s'\n", parameter);
}
/*将修改后的Inode写回*/
fseek(Disk, InodeBeg + sizeof(Inode)*inode, SEEK_SET);
fwrite(&temp, sizeof(Inode), 1, Disk);
close_dir(inode_num);
inode_num = original_inode;
open_dir(inode_num);
return 0;
}
int file_move(char* name, char* mvname)
{
int originalInode = inode_num;//记录当前的inode
int source_inode_num, dest_inode_num;
int inode;//原文件的inode
char originalNamePath[30];
char originalMvNamePath[30];
strcpy(originalNamePath, name);
strcpy(originalMvNamePath, mvname);
if (eat_path(name) == -1) {
printf("mv: cannot stat ‘%s’: No such file or directory\n", originalNamePath);
return -1;
}
if (type_check(name) != File) {
printf("mv: cannot move '%s': Not a file or no exist\n", originalNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
source_inode_num = inode_num;//记录原文件的父目录节点
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
if (eat_path(mvname) == -1) {
printf("mv: cannot stat ‘%s’: No such file or directory\n", originalMvNamePath);
return -1;
}
dest_inode_num = inode_num;//记录目标目录的父目录节点
if (source_inode_num == dest_inode_num && strcmp(name, mvname) == 0) {
printf("mv: '%s' and '%s' are the same file\n", originalNamePath, originalMvNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
Inode temp;
/*读取原文件目录的inode节点，判断该目录是否可写*/
fseek(Disk, InodeBeg + sizeof(Inode)*source_inode_num, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (temp.access[1][user_num] == 0) { //原文件目录不可写
if (type_check(mvname) == Directory)
printf("mv: cannot move ‘%s’ to ‘%s/%s’: Permission denied\n", originalNamePath, originalMvNamePath, name);
else
printf("mv: cannot move ‘%s’ to ‘%s’: Permission denied\n", originalNamePath, originalMvNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
/*形如：mv a.txt b.txt*/
if (type_check(mvname) == -1) { //如果b.txt不存在
/*读取b.txt的父目录的inode，判断是否可写*/
fseek(Disk, InodeBeg + sizeof(Inode)*dest_inode_num, SEEK_SET);
fread(&temp, sizeof(temp), 1, Disk);
if (temp.access[1][user_num] == 0) { //b.txt的父目录不可写
printf("mv: cannot move ‘%s’ to ‘%s’: Permission denied\n", originalNamePath, originalMvNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
if (source_inode_num == dest_inode_num) {//如果b.txt不存在，且a.txt 与 b.txt 在同一父目录下，则相当于a.txt重命名
for (int pos = 0; pos < dir_num; ++pos) {
if (strcmp(dir_table[pos].name, name) == 0)
strcpy(dir_table[pos].name, mvname);
}
}
else {//如果b.txt不存在，且a.txt 与 b.txt 不在同一父目录下，则将a.txt的目录项删除，创建b.txt的目录项指向a.txt的inode
inode_num = source_inode_num;
open_dir(source_inode_num);//返回a.txt父目录位置
inode = check_name(inode_num, name);
adjust_dir(name);//删除a.txt的目录项
close_dir(inode_num);
inode_num = dest_inode_num;
open_dir(dest_inode_num);//返回b.txt父目录位置
strcpy(dir_table[dir_num].name, mvname);
dir_table[dir_num++].inode_num = inode;
}
}
else if (type_check(mvname) == File) {//如果b.txt为文件
if (source_inode_num == dest_inode_num) {//若b.txt 与 a.txt在同一父目录下，则删除b.txt的目录项，同时将a.txt的目录项重命名
adjust_dir(mvname); //b.txt 与 a.txt在同一父目录下，则b.txt的父目录权限在前面已经判断，是可写的
for (int pos = 0; pos < dir_num; ++pos) {
if (strcmp(dir_table[pos].name, name) == 0)
strcpy(dir_table[pos].name, mvname);
}
}
else {//b.txt 已经存在 且 a.txt与b.txt不在同一目录，则将a.txt的目录项删除，修改b.txt的目录项指向a.txt的inode
inode_num = source_inode_num;
open_dir(source_inode_num);//返回a.txt父目录位置
inode = check_name(inode_num, name);
adjust_dir(name);//删除a.txt的目录项
close_dir(inode_num);
inode_num = dest_inode_num;
open_dir(dest_inode_num);//返回b.txt父目录位置
for (int pos = 0; pos < dir_num; ++pos) {
if (strcmp(dir_table[pos].name, mvname) == 0)
dir_table[pos].inode_num = inode;
}
}
}
else { //如果b.txt为目录
if (source_inode_num == dest_inode_num && strcmp(mvname, ".") == 0) {
printf("mv: '%s' and '%s/%s' are the same file\n", originalNamePath, originalMvNamePath, name);
return -1;//移动到本目录下，即不需要移动
}
//如果b.txt是目录项，进入b.txt目录中，创建一个目录项指向a.txt, 再将a.txt的目录项删除，
inode_num = source_inode_num;
open_dir(source_inode_num);//返回a.txt父目录位置
inode = check_name(inode_num, name);//记录a.txt的inode
close_dir(inode_num);
inode_num = dest_inode_num;
open_dir(dest_inode_num);//返回b.txt父目录位置
enter_child_dir(inode_num, mvname);
if (check_name(inode_num, mvname) == -1) { //b.txt目录下不存在与a.txt重名的项目，则创建一个目录项指向a.txt
/*读取b.txt的inode，判断是否可写*/
fseek(Disk, InodeBeg + sizeof(Inode)*inode_num, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (temp.access[1][user_num] == 0) { //b.txt不可写
printf("mv: cannot move ‘%s’ to ‘%s/%s’: Permission denied\n", originalNamePath, originalMvNamePath, name);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
strcpy(dir_table[dir_num].name, name);
dir_table[dir_num++].inode_num = inode;
}
else { //b.txt目录下存在与a.txt重名的项目，修改该项目的目录项指向a.txt的inode
dir_table[check_name(inode, mvname)].inode_num = inode;
}
close_dir(inode_num);
inode_num = source_inode_num;
open_dir(source_inode_num);//返回a.txt父目录位置
inode = check_name(inode_num, name);
adjust_dir(name);//删除a.txt的目录项
}
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return 0;
}
int file_copy(char* name, char* cpname)
{
int originalInode = inode_num;//记录当前的inode
int source_inode_num, dest_inode_num;
char originalNamePath[30];
char originalCpNamePath[30];
strcpy(originalNamePath, name);
strcpy(originalCpNamePath, cpname);
if (eat_path(name) == -1) {
printf("cp: cannot stat ‘%s’: No such file or directory\n", originalNamePath);
return -1;
}
if (type_check(name) != File) {
printf("cp: cannot copy '%s': Not a file\n", originalNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
if (file_read(name) == -1) {//若原文件不可读
printf("cp: cannot open '%s' for reading: Permission denied\n", originalNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
source_inode_num = inode_num;//记录原文件的父目录节点
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
if (eat_path(cpname) == -1) {
printf("cp: cannot stat ‘%s’: No such file or directory\n", originalCpNamePath);
return -1;
}
dest_inode_num = inode_num;//记录目标目录的父目录节点
if (source_inode_num == dest_inode_num && strcmp(name, cpname) == 0) {
printf("cp: '%s' and '%s' are the same file\n", originalNamePath, originalCpNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
Inode temp;
/*将原文件拷贝到另一文件中*/
if (type_check(cpname) != Directory) {
if (check_name(inode_num, cpname) != -1) {//目标文件已经存在，则将数据拷贝进去
if (file_write(cpname) == -1) { //若目标文件不可写
printf("cp: cannot create regular file‘%s’: Permission denied\n", originalCpNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
}
else { //目标文件不存在，创建文件，并将数据拷贝进去
/*读取目标目录的inode节点，判断该目录是否可写*/
fseek(Disk, InodeBeg + sizeof(Inode)*dest_inode_num, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (temp.access[1][user_num] == 0) { //目标目录不可写
printf("cp: cannot create regular file ‘%s’: Permission denied\n", originalCpNamePath);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
make_file(inode_num, cpname, File);
file_write(cpname);//将数据从BUFF写入文件
}
}
/*将原文件拷贝到某个子目录下，包括当前目录(.), 原目录的父目录（..）*/
else {
if (source_inode_num == dest_inode_num && strcmp(cpname, ".") == 0) {//将当前目录下的某个文件复制到当前目录，提示已经存在
printf("cp: '%s' and '%s/%s' are the same file\n", originalNamePath, originalCpNamePath, name);
return -1;
}
enter_child_dir(inode_num, cpname);//进入子目录或父目录
/*记录原目录名*/
int pos = strlen(path) - 1;
for (; pos >= 0; --pos) {
if (path[pos] == '/') {
break;
}
}
char curDirName[30];
int i = 0;
for (pos = pos + 1; pos <= strlen(path); ++pos)
curDirName[i++] = path[pos];
//printf("%s\n", curDirName);
if (check_name(inode_num, name) != -1) {//是否已有同名文件
file_write(name);//将数据从BUFF写入文件
}
else {
/*读取目标目录的inode节点，判断该目录是否可写*/
fseek(Disk, InodeBeg + sizeof(Inode)*inode_num, SEEK_SET);
fread(&temp, sizeof(Inode), 1, Disk);
if (temp.access[1][user_num] == 0) { //目标目录不可写
printf("cp: cannot create regular file ‘./%s’: Permission denied\n", name);
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return -1;
}
make_file(inode_num, name, File);
file_write(name);//将数据从BUFF写入文件
}
/*返回原目录*/
if (strcmp(cpname, "..") == 0)
enter_child_dir(inode_num, curDirName);//如果复制到父目录，则复制完返回原目录
else
enter_child_dir(inode_num, "..");//如果复制到子目录，则复制完返回到子目录的".."目录，即原目录
}
close_dir(inode_num);
inode_num = originalInode;
open_dir(inode_num);//返回操作前的目录位置
return 0;
}