unsigned int
dircount(const char *n, int flags) {
dirstack *stack = pushdir(NULL, n);
unsigned int total = 0;
while (NULL != stack) {
DIR *dir = opendir(stack->path);
char cwd[MAXNAMLEN + 1];
unsigned int dircnt = 0;
struct dirent *ent;
if (NULL == dir) {
perror(stack->path);
exit(1);
}
strcpy(cwd, stack->path);
stack = popdir(stack);
while (NULL != (ent = readdir(dir))) {
char path[MAXNAMLEN + 1];
struct stat s;
int res;
if (MATCH == strcmp(".", ent->d_name)
|| MATCH == strcmp("..", ent->d_name))
continue;
strcpy(path, cwd);
strcat(path, "/");
strcat(path, ent->d_name);
/* dirent->d_type was always set to DT_UNKNOWN on SDF */
res = lstat(path, &s);
if (SUCCESS != res)
perror(path);
switch (s.st_mode & S_IFMT) {
case S_IFDIR:
if (RECURSE & flags)
stack = pushdir(stack, path);
break;
case S_IFREG:
total++;
dircnt++;
break;
}
}
if (!(RECURSE & flags) || !(QUIET & flags))
printf("%s\t%u\n", cwd, dircnt);
closedir(dir);
}
return total;
}
char*
rread(Fid *f)
{
int i, len;
Ram *r;
char *buf;
uvlong off, end;
int n, cnt;
if(f->ram->busy == 0)
return Enotexist;
n = 0;
thdr.count = 0;
off = rhdr.offset;
end = rhdr.offset + rhdr.count;
cnt = rhdr.count;
if(cnt > messagesize-IOHDRSZ)
cnt = messagesize-IOHDRSZ;
buf = thdr.data;
if(f->ram->qid.type & QTDIR){
if(!f->ram->replete)
popdir(f->ram);
for(i=0,r=f->ram->child; r!=nil && i<end; r=r->next){
if(!r->busy)
continue;
len = ramstat(r, (uchar*)buf+n, cnt-n);
if(len <= BIT16SZ)
break;
if(i >= off)
n += len;
i += len;
}
thdr.count = n;
return 0;
}
r = f->ram;
if(off >= r->ndata)
return 0;
r->atime = time(0);
n = cnt;
if(off+n > r->ndata)
n = r->ndata - off;
thdr.data = doread(r, off, n);
thdr.count = n;
return 0;
}
char*
rwalk(Fid *f)
{
Fid *nf;
Ram *r;
char *err;
char *name;
Ram *dir;
int i;
nf = nil;
if(f->ram->busy == 0)
return Enotexist;
if(f->open)
return Eisopen;
if(rhdr.newfid != rhdr.fid){
nf = newfid(rhdr.newfid);
nf->busy = 1;
nf->open = 0;
nf->rclose = 0;
nf->ram = f->ram;
nf->user = f->user; /* no ref count; the leakage is minor */
f = nf;
}
thdr.nwqid = 0;
err = nil;
r = f->ram;
if(rhdr.nwname > 0){
for(i=0; i<rhdr.nwname; i++){
if((r->qid.type & QTDIR) == 0){
err = Enotdir;
break;
}
if(r->busy == 0){
err = Enotexist;
break;
}
r->atime = time(0);
name = rhdr.wname[i];
dir = r;
if(!perm(Pexec)){
err = Eperm;
break;
}
if(strcmp(name, "..") == 0){
r = dir->parent;
Accept:
if(i == MAXWELEM){
err = "name too long";
break;
}
thdr.wqid[thdr.nwqid++] = r->qid;
continue;
}
if(!dir->replete)
popdir(dir);
for(r=dir->child; r; r=r->next)
if(r->busy && strcmp(name, r->name)==0)
goto Accept;
break; /* file not found */
}
if(i==0 && err == nil)
err = Enotexist;
}
if(err!=nil || thdr.nwqid<rhdr.nwname){
if(nf){
nf->busy = 0;
nf->open = 0;
nf->ram = 0;
}
}else if(thdr.nwqid == rhdr.nwname)
f->ram = r;
return err;
}