static Path*
walkto(char *a, char **lastp)
{
char *els[Nels], *path;
int nels;
Path *p;
path = fsname(a);
nels = gettokens(path, els, Nels, "/");
if(nels < 1){
free(path);
error("invalid path");
}
if(catcherror()){
free(path);
error("walkpath: %r");
}
if(lastp != nil){
p = walkpath(fs->root, els, nels-1);
*lastp = a + strlen(a) - strlen(els[nels-1]);
}else
p = walkpath(fs->root, els, nels);
free(path);
noerror();
if(verb)
print("walked to %H\n", p->f[p->nf-1]);
return p;
}
static int
walkpath(const char *root, dirwalk_action action, unsigned char mask)
{
char child[FILENAME_MAX+1];
struct dirent *ent;
DIR *dh;
if (NULL == (dh = opendir(root))) {
return -1;
}
while (NULL != (ent = readdir(dh))) {
if (0 == strncmp("..", ent->d_name, 3)) {
continue;
}
if (0 == strncmp(".", ent->d_name, 2)) {
continue;
}
snprintf(child, FILENAME_MAX, "%s/%s", root, ent->d_name);
if (mask | ent->d_type) {
if (-1 == action(child)) {
break;
}
}
if (DT_DIR == ent->d_type && (!(FT_NODESCEND | mask))) {
if (-1 == walkpath(child, action, mask)) {
break;
}
}
}
if (-1 == closedir(dh)) {
return -1;
}
return 0;
}
/*
* walkdir goes through every directory entry under root and calls action on
* every entry matching the mask.
*/
int
walkdir(const char *root, dirwalk_action action, unsigned char mask)
{
struct stat st;
char *rootdup = NULL;
size_t rootlen;
int ret = -1;
unsigned char type;
if (-1 == stat(root, &st)) {
return -1;
}
type = stat_mode_to_dt_type(st.st_mode);
if (mask | type) {
if (0 != (ret = action(root))) {
return ret;
}
}
if (DT_DIR == type) {
rootlen = strnlen(root, FILENAME_MAX);
rootdup = strndup(root, FILENAME_MAX);
if (NULL == rootdup) {
return -1;
}
if ('/' == rootdup[rootlen-1]) {
rootdup[rootlen-1] = 0;
}
ret = walkpath(rootdup, action, mask);
}
free(rootdup);
return ret;
}