97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/* C wrappers around some zfs calls and C in general that should simplify
|
|
* using libzfs from go language, make go code shorter and more readable.
|
|
*/
|
|
|
|
#include <libzfs.h>
|
|
#include <memory.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#include "zpool.h"
|
|
#include "zfs.h"
|
|
|
|
|
|
dataset_list_t *create_dataset_list_item() {
|
|
dataset_list_t *zlist = malloc(sizeof(dataset_list_t));
|
|
memset(zlist, 0, sizeof(dataset_list_t));
|
|
return zlist;
|
|
}
|
|
|
|
void dataset_list_close(dataset_list_t *list) {
|
|
zfs_close(list->zh);
|
|
free(list);
|
|
}
|
|
|
|
int dataset_list_callb(zfs_handle_t *dataset, void *data) {
|
|
dataset_list_t **lroot = (dataset_list_t**)data;
|
|
dataset_list_t *nroot = create_dataset_list_item();
|
|
|
|
if ( !((*lroot)->zh) ) {
|
|
(*lroot)->zh = dataset;
|
|
} else {
|
|
nroot->zh = dataset;
|
|
nroot->pnext = (void*)*lroot;
|
|
*lroot = nroot;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int dataset_list_root(libzfs_handle_t *libzfs, dataset_list_t **first) {
|
|
int err = 0;
|
|
dataset_list_t *zlist = create_dataset_list_item();
|
|
err = zfs_iter_root(libzfs, dataset_list_callb, &zlist);
|
|
if ( zlist->zh ) {
|
|
*first = zlist;
|
|
} else {
|
|
*first = 0;
|
|
free(zlist);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
dataset_list_t *dataset_next(dataset_list_t *dataset) {
|
|
return dataset->pnext;
|
|
}
|
|
|
|
|
|
int dataset_list_children(zfs_handle_t *zfs, dataset_list_t **first) {
|
|
int err = 0;
|
|
dataset_list_t *zlist = create_dataset_list_item();
|
|
err = zfs_iter_children(zfs, dataset_list_callb, &zlist);
|
|
if ( zlist->zh ) {
|
|
*first = zlist;
|
|
} else {
|
|
*first = 0;
|
|
free(zlist);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int read_dataset_property(zfs_handle_t *zh, property_list_t *list, int prop) {
|
|
int r = 0;
|
|
zprop_source_t source;
|
|
char statbuf[INT_MAX_VALUE];
|
|
|
|
r = zfs_prop_get(zh, prop,
|
|
list->value, INT_MAX_VALUE, &source, statbuf, INT_MAX_VALUE, 1);
|
|
if (r == 0) {
|
|
// strcpy(list->name, zpool_prop_to_name(prop));
|
|
zprop_source_tostr(list->source, source);
|
|
}
|
|
list->property = (int)prop;
|
|
return r;
|
|
}
|
|
|
|
int clear_last_error(libzfs_handle_t *hdl) {
|
|
zfs_standard_error(hdl, EZFS_SUCCESS, "success");
|
|
return 0;
|
|
}
|
|
|
|
char** alloc_cstrings(int size) {
|
|
return malloc(size*sizeof(char*));
|
|
}
|
|
|
|
void strings_setat(char **a, int at, char *v) {
|
|
a[at] = v;
|
|
}
|