Files
alcove/c_src/sys/readdir.c
Michael Santos 535eeb9530 readdir: do not filter paths
Return the result of readdir(3) without removing the magic "." and ".."
directories.
2015-07-25 11:54:39 -04:00

68 lines
2.1 KiB
C

/* Copyright (c) 2014, Michael Santos <michael.santos@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "alcove.h"
#include "alcove_call.h"
#include <sys/stat.h>
#include <dirent.h>
/*
* readdir(3)
*
*/
ssize_t
alcove_sys_readdir(alcove_state_t *ap, const char *arg, size_t len,
char *reply, size_t rlen)
{
int index = 0;
int rindex = 0;
char name[PATH_MAX] = {0};
size_t namelen = sizeof(name)-1;
DIR *dirp = NULL;
struct dirent *dent = NULL;
/* name */
if (alcove_decode_iolist(arg, len, &index, name, &namelen) < 0 ||
namelen == 0)
return -1;
dirp = opendir(name);
if (dirp == NULL)
return alcove_mk_errno(reply, rlen, errno);
ALCOVE_ERR(alcove_encode_version(reply, rlen, &rindex));
ALCOVE_ERR(alcove_encode_tuple_header(reply, rlen, &rindex, 2));
ALCOVE_ERR(alcove_encode_atom(reply, rlen, &rindex, "ok"));
errno = 0;
while ( (dent = readdir(dirp))) {
ALCOVE_ERR(alcove_encode_list_header(reply, rlen, &rindex, 1));
ALCOVE_ERR(alcove_encode_binary(reply, rlen, &rindex,
dent->d_name, strlen(dent->d_name)));
}
if (errno != 0)
return alcove_mk_errno(reply, rlen, errno);
if (closedir(dirp) < 0)
return alcove_mk_errno(reply, rlen, errno);
ALCOVE_ERR(alcove_encode_empty_list(reply, rlen, &rindex));
return rindex;
}