char* find_name(MINODE *mip)
{
int my_ino = 0;
int parent_ino = 0;
findino(mip, &my_ino, &parent_ino);
MINODE* parent_mip = iget(running->cwd->device, parent_ino);
char* my_name = NULL;
findmyname(parent_mip, my_ino, &my_name);
iput(parent_mip);
return my_name;
}
off_t xml_listdir(char *d, int *dt, int *ft, u_long lev, dev_t dev)
{
char *path;
bool nlf = FALSE;
long pathsize = 0;
struct _info **dir, **sav;
struct stat sb;
int t, n, mt;
if ((Level >= 0) && (lev > Level)) {
if (!noindent) fputc('\n',outfile);
return 0;
}
if (xdev && lev == 0) {
stat(d,&sb);
dev = sb.st_dev;
}
sav = dir = read_dir(d,&n);
if (!dir && n) {
fprintf(outfile,"<error>opening dir</error>\n");
return 0;
}
if (!n) {
if (!noindent) fputc('\n', outfile);
free_dir(sav);
return 0;
}
if (flimit > 0 && n > flimit) {
fprintf(outfile,"<error>%d entries exceeds filelimit, not opening dir</error>%s",n,noindent?"":"\n");
free_dir(sav);
return 0;
}
if (cmpfunc) qsort(dir,n,sizeof(struct _info *), cmpfunc);
if (lev >= maxdirs-1) {
dirs = xrealloc(dirs,sizeof(int) * (maxdirs += 1024));
memset(dirs+(maxdirs-1024), 0, sizeof(int) * 1024);
}
dirs[lev] = 1;
if (!*(dir+1)) dirs[lev] = 2;
if (!noindent) fprintf(outfile,"\n");
path = malloc(pathsize=4096);
while(*dir) {
if (!noindent) xml_indent(lev);
if ((*dir)->lnk) mt = (*dir)->mode & S_IFMT;
else mt = (*dir)->mode & S_IFMT;
for(t=0;ifmt[t];t++)
if (ifmt[t] == mt) break;
fprintf(outfile,"<%s", ftype[t]);
if (fflag) {
if (sizeof(char) * (strlen(d)+strlen((*dir)->name)+2) > pathsize)
path=xrealloc(path,pathsize=(sizeof(char) * (strlen(d)+strlen((*dir)->name)+1024)));
if (!strcmp(d,"/")) sprintf(path,"%s%s",d,(*dir)->name);
else sprintf(path,"%s/%s",d,(*dir)->name);
} else {
if (sizeof(char) * (strlen((*dir)->name)+1) > pathsize)
path=xrealloc(path,pathsize=(sizeof(char) * (strlen((*dir)->name)+1024)));
sprintf(path,"%s",(*dir)->name);
}
fprintf(outfile, " name=\"");
html_encode(outfile,path);
fputc('"',outfile);
if ((*dir)->lnk) {
fprintf(outfile, " target=\"");
html_encode(outfile,(*dir)->lnk);
fputc('"',outfile);
}
xml_fillinfo(*dir);
fputc('>',outfile);
if ((*dir)->isdir) {
if ((*dir)->lnk) {
if (lflag && !(xdev && dev != (*dir)->dev)) {
if (findino((*dir)->inode,(*dir)->dev)) {
fprintf(outfile,"<error>recursive, not followed</error>");
} else {
saveino((*dir)->inode, (*dir)->dev);
if (*(*dir)->lnk == '/')
listdir((*dir)->lnk,dt,ft,lev+1,dev);
else {
if (strlen(d)+strlen((*dir)->lnk)+2 > pathsize) path=xrealloc(path,pathsize=(strlen(d)+strlen((*dir)->name)+1024));
if (fflag && !strcmp(d,"/")) sprintf(path,"%s%s",d,(*dir)->lnk);
else sprintf(path,"%s/%s",d,(*dir)->lnk);
listdir(path,dt,ft,lev+1,dev);
}
nlf = TRUE;
}
}
} else if (!(xdev && dev != (*dir)->dev)) {
if (strlen(d)+strlen((*dir)->name)+2 > pathsize) path=xrealloc(path,pathsize=(strlen(d)+strlen((*dir)->name)+1024));
if (fflag && !strcmp(d,"/")) sprintf(path,"%s%s",d,(*dir)->name);
else sprintf(path,"%s/%s",d,(*dir)->name);
saveino((*dir)->inode, (*dir)->dev);
listdir(path,dt,ft,lev+1,dev);
nlf = TRUE;
}
*dt += 1;
} else *ft += 1;
if (*(dir+1) && !*(dir+2)) dirs[lev] = 2;
if (nlf) {
nlf = FALSE;
if (!noindent) xml_indent(lev);
}
fprintf(outfile,"</%s>%s",ftype[t],noindent?"":"\n");
dir++;
}
dirs[lev] = 0;
free(path);
free_dir(sav);
return 0;
}
int my_rmdir(int argc, char* argv[])
{
result_t result = NONE;
const int uid = running->uid;
const int device = running->cwd->device;
if(argc < 2)
{
fprintf(stderr, "rmdir: missing operand\n");
return MISSING_OPERAND;
}
// rmdir each path given by user
int i = 1;
while(i < argc)
{
char* path = argv[i];
int ino = getino(device, path);
MINODE* mip = iget(device, ino);
// Verify file exists
if(!mip)
{
result = DOES_NOT_EXIST;
fprintf(stderr, "rmdir: failed to remove '%s':"
" No such file or directory\n", path);
goto clean_up;
}
// Verify user has permission to remove the directory
else if(uid != SUPER_USER && uid != mip->inode.i_uid)
{
result = PERM_DENIED;
fprintf(stderr, "rmdir: failed to remove '%s':"
" Permission denied\n", path);
goto clean_up;
}
// Verify that it is a directory
else if(!S_ISDIR(mip->inode.i_mode))
{
result = NOT_DIR;
fprintf(stderr, "rmdir: failed to remove '%s':"
" Not a directory\n", path);
goto clean_up;
}
// Verify that it is not busy
else if(mip->refCount > 1)
{
result = BUSY;
fprintf(stderr, "rmdir: failed to remove directory '%s':"
" Directory busy\n", path);
goto clean_up;
}
// Verify that it is empty
else if(!isEmptyDir(mip))
{
result = NOT_EMPTY;
fprintf(stderr, "rmdir: failed to remove directory '%s':"
" Directory not empty\n", path);
goto clean_up;
}
// If removing multiple directories, display
if(argc > 2)
printf("rmdir: removing directory '%s'\n", path);
INODE* ip = &mip->inode;
// Get parent DIR's ino and Minode
int parent_ino = 0;
findino(mip, &ino, &parent_ino);
MINODE* parent_mip = iget(device, parent_ino);
INODE* parent_ip = &parent_mip->inode;
// Deallocate its blocks
for(int b = 0; b < NUM_DIRECT_BLOCKS && ip->i_block[b] != 0; b++)
bfree(device, ip->i_block[b]);
// Deallocate its inode
ifree(device, ino);
// Remove entry from parent directory
rm_child(parent_mip, ino);
// Update parent's info
parent_ip->i_links_count--;
parent_ip->i_atime = time(0L);
parent_ip->i_mtime = time(0L);
parent_mip->dirty = true;
// Write parent changes to disk
iput(parent_mip);
clean_up:
// Write changes to deleted directory to disk and clear refCount
iput(mip);
if(result != NONE)
return result;
i++;
}
return SUCCESS;
}
