void cmdLs(void) {
// Pede o nome do diretorio de trabalho
char cwd[1024];
int err = getcwd2(cwd, 1024);
if (err) {
printf ("Working directory not found\n");
return;
}
// Abre o diretório de trabalho
DIR2 d;
d = opendir2(cwd);
if (d<0) {
printf ("Open dir error: %d\n", err);
return;
}
// Coloca diretorio na tela
DIRENT2 dentry;
while ( readdir2(d, &dentry) == 0 ) {
printf ("%c %8ld %s\n", (dentry.fileType?'d':'-'), dentry.fileSize, dentry.name);
}
closedir2(d);
}
/*
* The scandir() function reads the directory dirname and builds an
* array of pointers to directory entries using malloc(3). It returns
* the number of entries in the array. A pointer to the array of
* directory entries is stored in the location referenced by namelist.
*
* The select parameter is a pointer to a user supplied subroutine
* which is called by scandir() to select which entries are to be
* included in the array. The select routine is passed a pointer to
* a directory entry and should return a non-zero value if the
* directory entry is to be included in the array. If select is null,
* then all the directory entries will be included.
*
* The compar parameter is a pointer to a user supplied subroutine
* which is passed to qsort(3) to sort the completed array. If this
* pointer is null, the array is not sorted.
*/
int
scandir(const char *dirname,
struct dirent2 ***ret_namelist,
int (*select)(const struct dirent2 *),
int (*compar)(const struct dirent2 **, const struct dirent2 **))
{
int i, len;
int used, allocated;
DIR2 *dir;
struct dirent2 *ent, *ent2;
struct dirent2 **namelist = NULL;
if ((dir = opendir2(dirname)) == NULL) return -1;
used = 0;
allocated = 2;
namelist = malloc(allocated * sizeof(struct dirent2 *));
if (!namelist)
goto error;
while ((ent = readdir2(dir)) != NULL)
{
if (select != NULL && !select(ent)) continue;
/* duplicate struct direct for this entry */
len = offsetof(struct dirent2, d_name) + strlen(ent->d_name) + 1;
if ((ent2 = malloc(len)) == NULL) return -1;
if (used >= allocated)
{
allocated *= 2;
namelist = realloc(namelist, allocated * sizeof(struct dirent2 *));
if (!namelist)
goto error;
}
memcpy(ent2, ent, len);
namelist[used++] = ent2;
}
closedir2(dir);
if (compar)
qsort(namelist, used, sizeof(struct dirent2 *),
(int (*)(const void *, const void *)) compar);
*ret_namelist = namelist;
return used;
error:
if (namelist)
{
for (i = 0; i < used; i++)
free(namelist[i]);
free(namelist);
}
return -1;
}
