378 lines
7.8 KiB
C
378 lines
7.8 KiB
C
/*
|
|
*
|
|
*
|
|
*/
|
|
|
|
#include "fsource.h"
|
|
#include "mocked_fsrc.h"
|
|
#include "error.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <libgen.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
|
|
static
|
|
struct mock_file *path_to_node(IsoFilesystem *fs, const char *path);
|
|
|
|
static
|
|
char *get_path_aux(struct mock_file *file)
|
|
{
|
|
if (file->parent == NULL) {
|
|
return strdup("");
|
|
} else {
|
|
char *path = get_path_aux(file->parent);
|
|
int pathlen = strlen(path);
|
|
path = realloc(path, pathlen + strlen(file->name) + 2);
|
|
path[pathlen] = '/';
|
|
path[pathlen + 1] = '\0';
|
|
return strcat(path, file->name);
|
|
}
|
|
}
|
|
|
|
static
|
|
char* mfs_get_path(IsoFileSource *src)
|
|
{
|
|
struct mock_file *data;
|
|
data = src->data;
|
|
return get_path_aux(data);
|
|
}
|
|
|
|
static
|
|
char* mfs_get_name(IsoFileSource *src)
|
|
{
|
|
struct mock_file *data;
|
|
data = src->data;
|
|
return strdup(data->name);
|
|
}
|
|
|
|
static
|
|
int mfs_lstat(IsoFileSource *src, struct stat *info)
|
|
{
|
|
struct mock_file *data;
|
|
|
|
if (src == NULL || info == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
data = src->data;
|
|
|
|
*info = data->atts;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
static
|
|
int mfs_stat(IsoFileSource *src, struct stat *info)
|
|
{
|
|
struct mock_file *node;
|
|
if (src == NULL || info == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
node = src->data;
|
|
|
|
while ( S_ISLNK(node->atts.st_mode) ) {
|
|
/* the destination is stated */
|
|
node = path_to_node(node->fs, (char *)node->content);
|
|
if (node == NULL) {
|
|
return ISO_FILE_ERROR;
|
|
}
|
|
}
|
|
|
|
*info = node->atts;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
static
|
|
int mfs_access(IsoFileSource *src)
|
|
{
|
|
// TODO not implemented
|
|
return ISO_ERROR;
|
|
}
|
|
|
|
static
|
|
int mfs_open(IsoFileSource *src)
|
|
{
|
|
// TODO not implemented
|
|
return ISO_ERROR;
|
|
}
|
|
|
|
static
|
|
int mfs_close(IsoFileSource *src)
|
|
{
|
|
// TODO not implemented
|
|
return ISO_ERROR;
|
|
}
|
|
|
|
static
|
|
int mfs_read(IsoFileSource *src, void *buf, size_t count)
|
|
{
|
|
// TODO not implemented
|
|
return ISO_ERROR;
|
|
}
|
|
|
|
static
|
|
int mfs_readdir(IsoFileSource *src, IsoFileSource **child)
|
|
{
|
|
// TODO not implemented
|
|
return ISO_ERROR;
|
|
}
|
|
|
|
static
|
|
int mfs_readlink(IsoFileSource *src, char *buf, size_t bufsiz)
|
|
{
|
|
struct mock_file *data;
|
|
|
|
if (src == NULL || buf == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
|
|
if (bufsiz <= 0) {
|
|
return ISO_WRONG_ARG_VALUE;
|
|
}
|
|
data = src->data;
|
|
|
|
if (!S_ISLNK(data->atts.st_mode)) {
|
|
return ISO_FILE_IS_NOT_SYMLINK;
|
|
}
|
|
strncpy(buf, data->content, bufsiz);
|
|
buf[bufsiz-1] = '\0';
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
static
|
|
IsoFilesystem* mfs_get_filesystem(IsoFileSource *src)
|
|
{
|
|
struct mock_file *data;
|
|
data = src->data;
|
|
return data->fs;
|
|
}
|
|
|
|
static
|
|
void mfs_free(IsoFileSource *src)
|
|
{
|
|
/* nothing to do */
|
|
}
|
|
|
|
IsoFileSourceIface mfs_class = {
|
|
mfs_get_path,
|
|
mfs_get_name,
|
|
mfs_lstat,
|
|
mfs_stat,
|
|
mfs_access,
|
|
mfs_open,
|
|
mfs_close,
|
|
mfs_read,
|
|
mfs_readdir,
|
|
mfs_readlink,
|
|
mfs_get_filesystem,
|
|
mfs_free
|
|
};
|
|
|
|
/**
|
|
*
|
|
* @return
|
|
* 1 success, < 0 error
|
|
*/
|
|
static
|
|
int mocked_file_source_new(struct mock_file *data, IsoFileSource **src)
|
|
{
|
|
IsoFileSource *mocked_src;
|
|
|
|
if (src == NULL || data == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
|
|
/* allocate memory */
|
|
mocked_src = malloc(sizeof(IsoFileSource));
|
|
if (mocked_src == NULL) {
|
|
free(data);
|
|
return ISO_OUT_OF_MEM;
|
|
}
|
|
|
|
/* fill struct */
|
|
mocked_src->refcount = 1;
|
|
mocked_src->data = data;
|
|
mocked_src->class = &mfs_class;
|
|
|
|
/* take a ref to filesystem */
|
|
//iso_filesystem_ref(fs);
|
|
|
|
/* return */
|
|
*src = mocked_src;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
static
|
|
struct mock_file *path_to_node(IsoFilesystem *fs, const char *path)
|
|
{
|
|
struct mock_file *node;
|
|
struct mock_file *dir;
|
|
char *ptr, *brk_info, *component;
|
|
|
|
/* get the first child at the root of the volume
|
|
* that is "/" */
|
|
dir = fs->data;
|
|
node = dir;
|
|
if (!strcmp(path, "/"))
|
|
return node;
|
|
|
|
ptr = strdup(path);
|
|
|
|
/* get the first component of the path */
|
|
component = strtok_r(ptr, "/", &brk_info);
|
|
while (component) {
|
|
size_t i;
|
|
|
|
if ( !S_ISDIR(node->atts.st_mode) ) {
|
|
node=NULL;
|
|
break;
|
|
}
|
|
dir = node;
|
|
|
|
node=NULL;
|
|
if (!dir->content) {
|
|
break;
|
|
}
|
|
|
|
i = 0;
|
|
while (((struct mock_file**)dir->content)[i]) {
|
|
if (!strcmp(component, ((struct mock_file**)dir->content)[i]->name)) {
|
|
node = ((struct mock_file**)dir->content)[i];
|
|
break;
|
|
}
|
|
++i;
|
|
}
|
|
|
|
/* see if a node could be found */
|
|
if (node==NULL) {
|
|
break;
|
|
}
|
|
component = strtok_r(NULL, "/", &brk_info);
|
|
}
|
|
free(ptr);
|
|
return node;
|
|
}
|
|
|
|
static
|
|
void add_node(struct mock_file *parent, struct mock_file *node)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
if (parent->content) {
|
|
while (((struct mock_file**)parent->content)[i]) {
|
|
++i;
|
|
}
|
|
}
|
|
parent->content = realloc(parent->content, (i+2) * sizeof(void*));
|
|
((struct mock_file**)parent->content)[i] = node;
|
|
((struct mock_file**)parent->content)[i+1] = NULL;
|
|
}
|
|
|
|
struct mock_file *test_mocked_fs_get_root(IsoFilesystem *fs)
|
|
{
|
|
return fs->data;
|
|
}
|
|
|
|
int test_mocked_fs_add_dir(const char *name, struct mock_file *p,
|
|
struct stat atts, struct mock_file **node)
|
|
{
|
|
struct mock_file *dir = calloc(1, sizeof(struct mock_file));
|
|
dir->fs = p->fs;
|
|
dir->atts = atts;
|
|
dir->name = strdup(name);
|
|
dir->parent = p;
|
|
add_node(p, dir);
|
|
|
|
*node = dir;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
int test_mocked_fs_add_symlink(const char *name, struct mock_file *p,
|
|
struct stat atts, const char *dest, struct mock_file **node)
|
|
{
|
|
struct mock_file *link = calloc(1, sizeof(struct mock_file));
|
|
link->fs = p->fs;
|
|
link->atts = atts;
|
|
link->name = strdup(name);
|
|
link->parent = p;
|
|
add_node(p, link);
|
|
link->content = strdup(dest);
|
|
*node = link;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|
|
static
|
|
int mocked_get_root(IsoFilesystem *fs, IsoFileSource **root)
|
|
{
|
|
if (fs == NULL || root == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
return mocked_file_source_new(fs->data, root);
|
|
}
|
|
|
|
static
|
|
int mocked_get_by_path(IsoFilesystem *fs, const char *path, IsoFileSource **file)
|
|
{
|
|
struct mock_file *f;
|
|
if (fs == NULL || path == NULL || file == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
f = path_to_node(fs, path);
|
|
return mocked_file_source_new(f, file);
|
|
}
|
|
|
|
static
|
|
void free_mocked_file(struct mock_file *file)
|
|
{
|
|
if (S_ISDIR(file->atts.st_mode)) {
|
|
if (file->content) {
|
|
int i = 0;
|
|
while (((struct mock_file**)file->content)[i]) {
|
|
free_mocked_file(((struct mock_file**)file->content)[i]);
|
|
++i;
|
|
}
|
|
}
|
|
}
|
|
free(file->content);
|
|
free(file->name);
|
|
free(file);
|
|
}
|
|
|
|
static
|
|
void mocked_fs_free(IsoFilesystem *fs)
|
|
{
|
|
free_mocked_file((struct mock_file *)fs->data);
|
|
}
|
|
|
|
int test_mocked_filesystem_new(IsoFilesystem **fs)
|
|
{
|
|
struct mock_file *root;
|
|
IsoFilesystem *filesystem;
|
|
|
|
if (fs == NULL) {
|
|
return ISO_NULL_POINTER;
|
|
}
|
|
|
|
root = calloc(1, sizeof(struct mock_file));
|
|
root->atts.st_atime = time(NULL);
|
|
root->atts.st_ctime = time(NULL);
|
|
root->atts.st_mtime = time(NULL);
|
|
root->atts.st_uid = 0;
|
|
root->atts.st_gid = 0;
|
|
root->atts.st_mode = S_IFDIR | 0777;
|
|
|
|
filesystem = malloc(sizeof(IsoFilesystem));
|
|
filesystem->refcount = 1;
|
|
root->fs = filesystem;
|
|
filesystem->data = root;
|
|
filesystem->get_root = mocked_get_root;
|
|
filesystem->get_by_path = mocked_get_by_path;
|
|
filesystem->free = mocked_fs_free;
|
|
*fs = filesystem;
|
|
return ISO_SUCCESS;
|
|
}
|
|
|