ssize_t sys_listxattr (const char *path, char *list, size_t size)
{
#if defined(HAVE_LISTXATTR)
ssize_t ret;
#ifndef XATTR_ADD_OPT
ret = listxattr(path, list, size);
#else
int options = 0;
ret = listxattr(path, list, size, options);
#endif
return remove_user(ret, list, size);
#elif defined(HAVE_LISTEA)
return listea(path, list, size);
#elif defined(HAVE_EXTATTR_LIST_FILE)
extattr_arg arg;
arg.path = path;
return bsd_attr_list(0, arg, list, size);
#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
return irix_attr_list(path, 0, list, size, 0);
#elif defined(HAVE_ATTROPEN)
ssize_t ret = -1;
int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
if (attrdirfd >= 0) {
ret = solaris_list_xattr(attrdirfd, list, size);
close(attrdirfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
static int
has_xattr(const char *filename, const char *xattrname)
{
char *nl, *nlp;
ssize_t r;
int exisiting;
r = listxattr(filename, NULL, 0, XATTR_SHOWCOMPRESSION);
if (r < 0)
return (0);
if (r == 0)
return (0);
nl = malloc(r);
if (!assert(nl != NULL))
return (0);
r = listxattr(filename, nl, r, XATTR_SHOWCOMPRESSION);
if (r < 0) {
free(nl);
return (0);
}
exisiting = 0;
for (nlp = nl; nlp < nl + r; nlp += strlen(nlp) + 1) {
if (strcmp(nlp, xattrname) == 0) {
exisiting = 1;
break;
}
}
free(nl);
return (exisiting);
}
ssize_t rep_listxattr (const char *path, char *list, size_t size)
{
#if defined(HAVE_LISTXATTR)
#ifndef XATTR_ADDITIONAL_OPTIONS
return listxattr(path, list, size);
#else
/* So that we do not recursivly call this function */
#undef listxattr
int options = 0;
return listxattr(path, list, size, options);
#endif
#elif defined(HAVE_LISTEA)
return listea(path, list, size);
#elif defined(HAVE_EXTATTR_LIST_FILE)
extattr_arg arg;
arg.path = path;
return bsd_attr_list(0, arg, list, size);
#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
return irix_attr_list(path, 0, list, size, 0);
#elif defined(HAVE_ATTROPEN)
ssize_t ret = -1;
int attrdirfd = solaris_attropen(path, ".", O_RDONLY, 0);
if (attrdirfd >= 0) {
ret = solaris_list_xattr(attrdirfd, list, size);
close(attrdirfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
static INT64_T chirp_fs_local_listxattr(const char *path, char *list, size_t size)
{
#ifdef CCTOOLS_OPSYS_DARWIN
return listxattr(path, list, size, 0);
#else
return listxattr(path, list, size);
#endif
}
static
ssize_t _listxattr(const char* path, char* namebuf, size_t size)
{
#if defined(__LWI_DARWIN__)
return listxattr(path, namebuf, size, XATTR_NOFOLLOW);
#else
return listxattr(path, namebuf, size);
#endif
}
static int
setup_xattrs(struct archive_read_disk *a,
struct archive_entry *entry, int fd)
{
char *list, *p;
const char *path;
ssize_t list_size;
path = archive_entry_sourcepath(entry);
if (path == NULL)
path = archive_entry_pathname(entry);
if (!a->follow_symlinks)
list_size = llistxattr(path, NULL, 0);
else
list_size = listxattr(path, NULL, 0);
if (list_size == -1) {
if (errno == ENOTSUP)
return (ARCHIVE_OK);
archive_set_error(&a->archive, errno,
"Couldn't list extended attributes");
return (ARCHIVE_WARN);
}
if (list_size == 0)
return (ARCHIVE_OK);
if ((list = malloc(list_size)) == NULL) {
archive_set_error(&a->archive, errno, "Out of memory");
return (ARCHIVE_FATAL);
}
if (!a->follow_symlinks)
list_size = llistxattr(path, list, list_size);
else
list_size = listxattr(path, list, list_size);
if (list_size == -1) {
archive_set_error(&a->archive, errno,
"Couldn't retrieve extended attributes");
free(list);
return (ARCHIVE_WARN);
}
for (p = list; (p - list) < list_size; p += strlen(p) + 1) {
if (strncmp(p, "system.", 7) == 0 ||
strncmp(p, "xfsroot.", 8) == 0)
continue;
setup_xattr(a, entry, p, fd);
}
free(list);
return (ARCHIVE_OK);
}
static INT64_T chirp_fs_local_listxattr(const char *path, char *list, size_t size)
{
PREAMBLE("listxattr(`%s', %p, %zu)", path, list, size);
RESOLVE(path)
#ifdef CCTOOLS_OPSYS_DARWIN
rc = listxattr(path, list, size, 0);
#else
rc = listxattr(path, list, size);
#endif
PROLOGUE
}
static ssize_t
xlistxattr(const char *path, char *list, size_t size, int symlink)
{
#ifdef XATTR_EXTRA_ARGS
return listxattr(path, list, size, symlink ? XATTR_NOFOLLOW : 0);
#else
switch (symlink) {
case 0:
return listxattr(path, list, size);
default:
return llistxattr(path, list, size);
}
#endif
}
static gboolean
_load_from_xattr(struct attr_handle_s *attr_handle, GError ** error){
char *last_name, *buf;
register ssize_t i;
ssize_t bufSize, bufMax;
GError *local_error = NULL;
if (attr_handle->attr_hash == NULL) {
SETERRCODE(error, EINVAL, "Invalid parameter : attr_hash is null");
return FALSE;
}
bufMax = listxattr(attr_handle->chunk_path, NULL, 0);
if (0 > bufMax) {
SETERRCODE(error, errno, "Failed to list XAttr : %s", strerror(errno));
return FALSE;
}
if (0 == bufMax) {
/* According to the man page, listxattr should return -1 if xattr
* is not supported by the underlying fs. It looks that in reality,
* it just returns a size of 0, so we'll consider this as an error. */
SETERRCODE(error, ENOTSUP, "Failed to list xattr from chunk [%s] : size of list of attr names is 0",
attr_handle->chunk_path);
return FALSE;
}
buf = g_malloc0(bufMax);
bufSize = listxattr(attr_handle->chunk_path, buf, bufMax);
for (last_name = buf, i = 0; i < bufSize; i++) {
if (buf[i] == '\0') {
char *value = NULL;
if (_getxattr_from_chunk(attr_handle, &local_error, last_name, &value))
g_hash_table_insert(attr_handle->attr_hash, g_strdup(last_name), value);
else {
SETERRCODE(error, local_error->code, "Cannot get xattr %s from %s : %s",
last_name, attr_handle->chunk_path, local_error->message);
g_clear_error(&local_error);
g_free(buf);
return FALSE;
}
last_name = buf + i + 1;
}
}
g_free(buf);
return TRUE;
}
ssize_t
ceph_os_listxattr(const char *path, char *list, size_t size)
{
ssize_t error = -1;
#if defined(__FreeBSD__)
/*
* XXX. The format of the list FreeBSD returns differs
* from the Linux ones. We have to perform the conversion. :-(
*/
char *newlist, *p, *p1;
if (size != 0) {
newlist = malloc(size);
if (newlist != NULL) {
error = extattr_list_file(path, EXTATTR_NAMESPACE_USER,
newlist, size);
if (error > 0) {
p = newlist;
p1 = list;
while ((p - newlist) < error) {
uint8_t len = *(uint8_t *)p;
p++;
if ((p + len - newlist) > error)
break;
if (len > 0) {
bcopy(p, p1, len);
p += len;
p1 += len;
*p1++ = '\0';
}
}
error = p1 - list;
}
free(newlist);
}
} else {
error = extattr_list_file(path, EXTATTR_NAMESPACE_USER,
list, size);
}
#elif defined(__linux__)
error = listxattr(path, list, size);
#elif defined(DARWIN)
error = listxattr(path, list, size, 0);
#endif
return (error);
}
int main (int argc, char *argv[])
{
int ret = -1;
char *value = NULL;
char *value_p = NULL;
char *file_path = NULL;
if(argc > 1)
file_path = argv[1];
else
file_path = FILE_PATH;
value = malloc(BUF_SIZE);
memset(value, '\0', 500);
ret = listxattr(file_path, value, 500);
POSITIVE_OR_RETURN(ret, "can not get xattr");
value_p = value;
printf("xattr total length:%d\n", ret);
while (ret>0) {
printf("ret=%d,value_p=%s\n", ret, value_p);
ret -= strlen(value_p) + 1;
value_p += strlen(value_p) + 1;
}
/* memcpy (value, "nihao", 5);
ret = setxattr(FILE_PATH, name, value, 5, XATTR_CREATE);
ZERO_OR_RETURN(ret, "can not set xattr");*/
return 0;
}
static int
spade_listxattr(const char *path, char *list, size_t size) {
ssize_t res = listxattr(path, list, size, XATTR_NOFOLLOW);
if (res > 0) {
if (list) {
size_t len = 0;
char *curr = list;
do {
size_t thislen = strlen(curr) + 1;
if (strcmp(curr, G_KAUTH_FILESEC_XATTR) == 0) {
memmove(curr, curr + thislen, res - len - thislen);
res -= thislen;
break;
}
curr += thislen;
len += thislen;
} while (len < res);
}
}
if (res == -1) {
return -errno;
}
return res;
}
static int farm_init(char *p)
{
struct siocb iocb;
dprintf("use farm store driver\n");
if (create_directory(p) < 0)
goto err;
if ((listxattr(p, NULL, 0) == -1) && (errno == ENOTSUP))
goto err;
if (trunk_init() < 0)
goto err;
if (snap_init() < 0)
goto err;
if (init_sys_vdi_bitmap(p) < 0)
goto err;
iocb.epoch = sys->epoch ? sys->epoch - 1 : 0;
farm_cleanup_sys_obj(&iocb);
return SD_RES_SUCCESS;
err:
return SD_RES_EIO;
}
int main(int argc,char *argv[])
{
char list[XATTR_SIZE],value[XATTR_SIZE];
ssize_t listLen,valueLen;
int ns,j,k,opt;
Boolean hexDisplay;
hexDisplay = 0;
while((opt = getopt(argc,argv,"x")) != -1)
{
switch (opt)
{
case 'x':hexDisplay = 1;break;
case '?': usageError(argv[0]);
}
}
if (optind >= argc + 2)
{
usageError(argv[0]);
}
for (j = optind; j < argc; j++)
{
listLen = listxattr(argv[j],list,XATTR_SIZE);
if (listLen == -1)
{
errExit("listxattr\n");
}
printf("%s:\n",argv[j]);
/* Loop through all EA names,displaying name + value */
for (ns = 0; ns < listLen; ns += strlen(&list[ns]) + 1)
{
printf(" name=%s;",&list[ns]);
valueLen = getxattr(argv[j],&list[ns],value,XATTR_SIZE);
if (valueLen == -1)
{
printf("couldn't get value");
}else if (!hexDisplay)
{
printf("value=%.*s",(int)valueLen,value);
}else
{
printf("value=");
for (k = 0; k < valueLen; k++)
{
printf("%02x",(unsigned int)value[k]);
}
}
printf("\n");
}
printf("\n");
}
exit(EXIT_SUCCESS);
}
static int xmp_listxattr(const char *path, char *list, size_t size)
{
int res = listxattr(path, list, size, XATTR_NOFOLLOW);
if (res == -1)
return -errno;
return res;
}
int main (int argc, char **argv) {
char list[BUFFER_SIZE] = {0};
int ret;
if (argc != 2) {
fprintf(stderr, "Usage: %s FILE\n", argv[0]);
return 1;
}
// Ask the kernel for the list of attributes.
printf("Listing attributes of \"%s\"\n", argv[1]);
ret = listxattr(argv[1], list, BUFFER_SIZE);
printf("listxattr() returned %d\n", ret);
if (ret == -1) {
printf("listxattr() failed: %s\n", strerror(errno));
return 2;
} else {
printf(" List contents:\n");
print_attribute_list(list, ret);
}
printf("\n");
// Get each attribute in the list--none of these calls should fail.
print_each_attribute(argv[1], list, ret);
return 0;
}
ssize_t sys_llistxattr (const char *path, char *list, size_t size)
{
#if defined(HAVE_LLISTXATTR)
ssize_t ret;
ret = llistxattr(path, list, size);
return remove_user(ret, list, size);
#elif defined(HAVE_LISTXATTR) && defined(XATTR_ADD_OPT)
ssize_t ret;
int options = XATTR_NOFOLLOW;
ret = listxattr(path, list, size, options);
return remove_user(ret, list, size);
#elif defined(HAVE_LLISTEA)
return llistea(path, list, size);
#elif defined(HAVE_EXTATTR_LIST_LINK)
extattr_arg arg;
arg.path = path;
return bsd_attr_list(1, arg, list, size);
#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
return irix_attr_list(path, 0, list, size, ATTR_DONTFOLLOW);
#elif defined(HAVE_ATTROPEN)
ssize_t ret = -1;
int attrdirfd = solaris_attropen(path, ".", O_RDONLY|AT_SYMLINK_NOFOLLOW, 0);
if (attrdirfd >= 0) {
ret = solaris_list_xattr(attrdirfd, list, size);
close(attrdirfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
char get_acl(char *filename)
{
acl_t acl;
acl_entry_t dummy;
ssize_t xattr;
char str[10];
xattr = 0;
acl = NULL;
acl = acl_get_link_np(filename, ACL_TYPE_EXTENDED);
if (acl && acl_get_entry(acl, ACL_FIRST_ENTRY, &dummy) == -1)
{
acl_free(acl);
acl = NULL;
}
xattr = listxattr(filename, NULL, 0, XATTR_NOFOLLOW);
if (xattr < 0)
xattr = 0;
str[1] = '\0';
if (xattr > 0)
str[0] = '@';
else if (acl)
str[0] = '+';
else
str[0] = ' ';
return (str[0]);
}
int volume_listxattr_path_on_active_volumes(const char *relative_raid_path, char *name, size_t size) {
pthread_mutex_lock(&volume_list_mutex);
VolumeNode_t *volume = active_volumes;
int master_ret = -EACCES;
struct stat stbuf;
while (volume) {
char fullpath[PATH_MAX];
volume_full_path_for_raid_path(volume->volume, relative_raid_path, fullpath);
/* If no file exists, do not attempt */
if (stat(fullpath, &stbuf)) {
volume = volume->next;
continue;
}
int ret = (int)listxattr(fullpath, name, size __APPLE_XATTR_POSITION_P3__ );
if (ret > 0) {
pthread_mutex_unlock(&volume_list_mutex);
return ret;
} else if (ret == 0) {
master_ret = 0;
} else if (master_ret) {
master_ret = -errno;
}
volume = volume->next;
}
pthread_mutex_unlock(&volume_list_mutex);
return master_ret;
}
char *ft_find_right(t_stat *stats, char *str, char *join)
{
char buf[100];
str = ft_strnew(12);
str[0] = ft_find_type(stats->st_mode);
str[1] = (stats->st_mode & S_IRUSR) ? 'r' : '-';
str[2] = (stats->st_mode & S_IWUSR) ? 'w' : '-';
if (stats->st_mode & S_IXUSR)
str[3] = (S_UID(stats->st_mode) ? 's' : 'x');
else
str[3] = (S_UID(stats->st_mode) ? 'S' : '-');
str[4] = (stats->st_mode & S_IRGRP) ? 'r' : '-';
str[5] = (stats->st_mode & S_IWGRP) ? 'w' : '-';
if (stats->st_mode & S_IXGRP)
str[6] = (S_GID(stats->st_mode) ? 's' : 'x');
else
str[6] = (S_GID(stats->st_mode) ? 'S' : '-');
str[7] = (stats->st_mode & S_IROTH) ? 'r' : '-';
str[8] = (stats->st_mode & S_IWOTH) ? 'w' : '-';
if (stats->st_mode & S_IXOTH)
str[9] = (S_VTX(stats->st_mode) ? 't' : 'x');
else
str[9] = (S_VTX(stats->st_mode) ? 'T' : '-');
str[10] = (listxattr(join, buf, 100, XATTR_NOFOLLOW) <= 0 ? ' ' : '@');
str[11] = '\0';
return (str);
}
static ssize_t
xlistxattr(const char *path, char *list, size_t size)
{
ssize_t ret = listxattr(path, list, size);
if (ret < 0)
err(1, "listxattr() failed");
return ret;
}
static gboolean
_load_from_xattr(struct attr_handle_s *attr_handle, GError ** error)
{
char *last_name, *buf;
register ssize_t i;
ssize_t s, size;
EXTRA_ASSERT(attr_handle != NULL);
EXTRA_ASSERT(attr_handle->attr_hash != NULL);
s = longest_xattr_list;
buf = g_malloc0(s);
retry:
size = listxattr(attr_handle->chunk_path, buf, s);
if (0 > size) {
if (errno != ERANGE) {
SETERRCODE(error, errno, "Failed to list xattr from file [%s] : %s",
attr_handle->chunk_path, strerror(errno));
g_free(buf);
return FALSE;
}
else {
s = s*2;
longest_xattr_list = 1 + MAX(longest_xattr_list, s);
buf = g_realloc(buf, s);
memset(buf, 0, s);
goto retry;
}
}
if (!size) {
g_free(buf);
return TRUE;
}
for (last_name = buf, i = 0; i < size; i++) {
if (buf[i] == '\0') {
char *value = _getxattr_from_chunk(attr_handle->chunk_path, attr_handle->chunk_file_des, last_name);
if (NULL != value) {
g_hash_table_insert(attr_handle->attr_hash, g_strdup(last_name), value);
}
else if (errno == ENOATTR) {
/* XATTR disappeared ! */
}
else {
SETERRCODE(error, errno, "Cannot get xattr %s from %s : %s",
last_name, attr_handle->chunk_path, strerror(errno));
g_free(buf);
return FALSE;
}
last_name = buf + i + 1;
}
}
g_free(buf);
return TRUE;
}
static ssize_t xattr_listxattr(const char *path, char *namebuf, size_t size, int options) {
if (!(options == 0 || options == XATTR_XATTR_NOFOLLOW)) {
return -1;
}
if (options & XATTR_XATTR_NOFOLLOW) {
return llistxattr(path, namebuf, size);
} else {
return listxattr(path, namebuf, size);
}
}
/*
list all extended attributes for the file
*/
void list_xattr(const char* filename, int nofollow) {
int options = nofollow ? XATTR_NOFOLLOW : 0;
ssize_t buffer_size = listxattr(filename, NULL, 0, options);
if(buffer_size < 0) {
perror("listxattr");
exit(1);
}
if(buffer_size == 0) {
// no xattr data
return;
}
char* buffer = (char*)malloc(buffer_size);
size_t n_read = listxattr(filename, buffer, buffer_size, options);
if(n_read != buffer_size) {
perror("listxattr (size mismatch)");
free(buffer);
exit(1);
}
// build a list of name,value,name,value,name,value,...
int index = 0;
char* name = buffer;
for(; name < buffer+buffer_size; name += strlen(name) + 1, index++) {
int size = getxattr(filename, name, 0, 0, 0, options);
if(size < 0) {
perror("getxattr");
exit(1);
}
char* buf2 = (char*)malloc(size + 1);
int size2 = getxattr(filename, name, buf2, size, 0, options);
if(size != size2) {
perror("getxattr (size mismatch)");
exit(1);
}
printf("%s : %s\n", name, buf2);
free(buf2);
}
free(buffer);
}
void ft_write_atx(char *str)
{
char buf[1024];
if (listxattr(str, buf, 1024, 0) > 0)
ft_putstr("@ ");
else if (acl_get_file(str, ACL_TYPE_EXTENDED))
ft_putstr("+ ");
else
ft_putstr(" ");
}
ssize_t listAttrs( const char* path, void* data, size_t nbytes ) {
ssize_t listxattrRet = listxattr( path, (char*) data, nbytes );
checkReturnValue( "listAttrs", listxattrRet);
ssize_t numEntries = numCharInStr( '.', data, listxattrRet );
// remove non-user namespace list items and remove the namespace name
// specifier
// first allocate a list of pointers to each string. Worst case every
// attribute which is found is in the USER namespace so we need a
// dynamically array which is this long
char** usefulBits = (char**) malloc( sizeof(char*) * numEntries );
if ( usefulBits == NULL )
errExit( "usefulBits malloc in listAttrs" );
// fill usefulBits with NULL for now
for ( ssize_t i = 0; i < numEntries; i++ )
usefulBits[i] = NULL;
// now put in the relevant pointers
size_t numEntriesRemaining = numEntries;
usefulBits[0] = seekToInterestingPart( (char*) data, &numEntriesRemaining );
for ( ssize_t i = 1; i < numEntries; i++ ) { // don't do this too many times
// returns NULL if we have run out
usefulBits[i] = seekToInterestingPart( usefulBits[i-1] + strlen(usefulBits[i-1]) + 6, &numEntriesRemaining );
}
// work out how many entries we have
ssize_t numInterestingEntries = 0;
for ( ssize_t i = 0; i < numEntries; i++ ) {
if ( usefulBits[i] == NULL ) {
// this is all of them
break;
} else {
numInterestingEntries++;
}
}
// now we overwrite data with the newly edited list. This will definitely
// fit because we have removed things from what was previously in data
// for the same reason we can be sure that we won't be overwriting ourself
// these for loops could all be combined however this form is better for readability
char* currPos = (char*) data;
for ( ssize_t i = 0; i < numInterestingEntries; i++ ) {
size_t size = strlen( usefulBits[i] );
strcpy( currPos, usefulBits[i] );
currPos += ( size + 2 );
}
free( usefulBits );
return numInterestingEntries;
}
int cow_listxattr(const char *path, char *buf, size_t count)
{
int res = 0;
char *fqpath = create_path(cow_getConfig()->srcdir, path);
if(fqpath==NULL){ return -errno; }
res=listxattr(fqpath, buf, count);
free(fqpath);
if (res == -1) return -errno;
return res;
}
ssize_t sys_listxattr (const char *path, char *list, size_t size)
{
#if defined(HAVE_LISTXATTR)
return listxattr(path, list, size);
#elif defined(HAVE_ATTR_LIST) && defined(HAVE_SYS_ATTRIBUTES_H)
return irix_attr_list(path, 0, list, size, 0);
#else
errno = ENOSYS;
return -1;
#endif
}
int fs_real_listxattr(const char *path, char *list, size_t size)
{
char ppath[FS_MAXPATH];
struct stat v_stbuf;
char *newpath=ppath;
FSDEBUG("path=%s",path);
isofs_inode *inode = fs_lookup(path);
if (inode)
{
FSDEBUG("you don't have permission on %s",path);
return -ENOTSUP;
}
if (fs_home_stat(path,&newpath,&v_stbuf) == 0)
{
if (listxattr(newpath,list,size) == 0) return 0;
return -errno;
}
if (listxattr(path,list,size) == 0) return 0;
return -errno;
}
// Pull the list of all the extended attributes for a path
std::vector<std::string> parseExtendedAttributeList(const std::string &path) {
std::vector<std::string> attributes;
ssize_t value = listxattr(path.c_str(), nullptr, (size_t)0, 0);
char *content = (char *)malloc(value);
if (content == nullptr) {
return attributes;
}
ssize_t ret = listxattr(path.c_str(), content, value, 0);
if (ret == 0) {
return attributes;
}
char *stable = content;
do {
attributes.push_back(std::string(content));
content += attributes.back().size() + 1;
} while (content - stable < value);
free(stable);
return attributes;
}
