ssize_t rep_fgetxattr (int filedes, const char *name, void *value, size_t size)
{
#if defined(HAVE_FGETXATTR)
#ifndef XATTR_ADDITIONAL_OPTIONS
return fgetxattr(filedes, name, value, size);
#else
/* So that we do not recursivly call this function */
#undef fgetxattr
int options = 0;
return fgetxattr(filedes, name, value, size, 0, options);
#endif
#elif defined(HAVE_FGETEA)
return fgetea(filedes, name, value, size);
#elif defined(HAVE_EXTATTR_GET_FD)
char *s;
ssize_t retval;
int attrnamespace = (strncmp(name, "system", 6) == 0) ?
EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
const char *attrname = ((s=strchr(name, '.')) == NULL) ? name : s + 1;
if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
if (size == 0) {
return retval;
} else if (retval > size) {
errno = ERANGE;
return -1;
}
if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
return retval;
}
return -1;
#elif defined(HAVE_ATTR_GETF)
int retval, flags = 0;
int valuelength = (int)size;
char *attrname = strchr(name,'.') + 1;
if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
if (size == 0 && retval == -1 && errno == E2BIG) {
return valuelength;
}
return retval ? retval : valuelength;
#elif defined(HAVE_ATTROPEN)
ssize_t ret = -1;
int attrfd = solaris_openat(filedes, name, O_RDONLY|O_XATTR, 0);
if (attrfd >= 0) {
ret = solaris_read_xattr(attrfd, value, size);
close(attrfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
ssize_t sys_fgetxattr (int filedes, const char *uname, void *value, size_t size)
{
const char *name = prefix(uname);
#if defined(HAVE_FGETXATTR)
#ifndef XATTR_ADD_OPT
return fgetxattr(filedes, name, value, size);
#else
int options = 0;
return fgetxattr(filedes, name, value, size, 0, options);
#endif
#elif defined(HAVE_FGETEA)
return fgetea(filedes, name, value, size);
#elif defined(HAVE_EXTATTR_GET_FD)
char *s;
ssize_t retval;
int attrnamespace = (strncmp(name, "system", 6) == 0) ?
EXTATTR_NAMESPACE_SYSTEM : EXTATTR_NAMESPACE_USER;
const char *attrname = ((s=strchr(name, '.')) == NULL) ? name : s + 1;
if((retval=extattr_get_fd(filedes, attrnamespace, attrname, NULL, 0)) >= 0) {
if(retval > size) {
errno = ERANGE;
return -1;
}
if((retval=extattr_get_fd(filedes, attrnamespace, attrname, value, size)) >= 0)
return retval;
}
LOG(log_debug, logtype_default, "sys_fgetxattr: extattr_get_fd(): %s", strerror(errno));
return -1;
#elif defined(HAVE_ATTR_GETF)
int retval, flags = 0;
int valuelength = (int)size;
char *attrname = strchr(name,'.') + 1;
if (strncmp(name, "system", 6) == 0) flags |= ATTR_ROOT;
retval = attr_getf(filedes, attrname, (char *)value, &valuelength, flags);
return retval ? retval : valuelength;
#elif defined(HAVE_ATTROPEN)
ssize_t ret = -1;
int attrfd = solaris_openat(filedes, name, O_RDONLY|O_XATTR, 0);
if (attrfd >= 0) {
ret = solaris_read_xattr(attrfd, value, size);
close(attrfd);
}
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
static int
setup_xattr(struct archive_read_disk *a,
struct archive_entry *entry, const char *name, int fd)
{
ssize_t size;
void *value = NULL;
const char *accpath;
accpath = archive_entry_sourcepath(entry);
if (accpath == NULL)
accpath = archive_entry_pathname(entry);
#if HAVE_FGETXATTR
if (fd >= 0)
size = fgetxattr(fd, name, NULL, 0);
else if (!a->follow_symlinks)
size = lgetxattr(accpath, name, NULL, 0);
else
size = getxattr(accpath, name, NULL, 0);
#elif HAVE_FGETEA
if (fd >= 0)
size = fgetea(fd, name, NULL, 0);
else if (!a->follow_symlinks)
size = lgetea(accpath, name, NULL, 0);
else
size = getea(accpath, name, NULL, 0);
#endif
if (size == -1) {
archive_set_error(&a->archive, errno,
"Couldn't query extended attribute");
return (ARCHIVE_WARN);
}
if (size > 0 && (value = malloc(size)) == NULL) {
archive_set_error(&a->archive, errno, "Out of memory");
return (ARCHIVE_FATAL);
}
#if HAVE_FGETXATTR
if (fd >= 0)
size = fgetxattr(fd, name, value, size);
else if (!a->follow_symlinks)
size = lgetxattr(accpath, name, value, size);
else
size = getxattr(accpath, name, value, size);
#elif HAVE_FGETEA
if (fd >= 0)
size = fgetea(fd, name, value, size);
else if (!a->follow_symlinks)
size = lgetea(accpath, name, value, size);
else
size = getea(accpath, name, value, size);
#endif
if (size == -1) {
archive_set_error(&a->archive, errno,
"Couldn't read extended attribute");
return (ARCHIVE_WARN);
}
archive_entry_xattr_add_entry(entry, name, value, size);
free(value);
return (ARCHIVE_OK);
}
static int
setup_xattr(struct archive_read_disk *a,
struct archive_entry *entry, const char *name, int fd, const char *accpath)
{
ssize_t size;
void *value = NULL;
if (fd >= 0) {
#if ARCHIVE_XATTR_LINUX
size = fgetxattr(fd, name, NULL, 0);
#elif ARCHIVE_XATTR_DARWIN
size = fgetxattr(fd, name, NULL, 0, 0, 0);
#elif ARCHIVE_XATTR_AIX
size = fgetea(fd, name, NULL, 0);
#endif
} else if (!a->follow_symlinks) {
#if ARCHIVE_XATTR_LINUX
size = lgetxattr(accpath, name, NULL, 0);
#elif ARCHIVE_XATTR_DARWIN
size = getxattr(accpath, name, NULL, 0, 0, XATTR_NOFOLLOW);
#elif ARCHIVE_XATTR_AIX
size = lgetea(accpath, name, NULL, 0);
#endif
} else {
#if ARCHIVE_XATTR_LINUX
size = getxattr(accpath, name, NULL, 0);
#elif ARCHIVE_XATTR_DARWIN
size = getxattr(accpath, name, NULL, 0, 0, 0);
#elif ARCHIVE_XATTR_AIX
size = getea(accpath, name, NULL, 0);
#endif
}
if (size == -1) {
archive_set_error(&a->archive, errno,
"Couldn't query extended attribute");
return (ARCHIVE_WARN);
}
if (size > 0 && (value = malloc(size)) == NULL) {
archive_set_error(&a->archive, errno, "Out of memory");
return (ARCHIVE_FATAL);
}
if (fd >= 0) {
#if ARCHIVE_XATTR_LINUX
size = fgetxattr(fd, name, value, size);
#elif ARCHIVE_XATTR_DARWIN
size = fgetxattr(fd, name, value, size, 0, 0);
#elif ARCHIVE_XATTR_AIX
size = fgetea(fd, name, value, size);
#endif
} else if (!a->follow_symlinks) {
#if ARCHIVE_XATTR_LINUX
size = lgetxattr(accpath, name, value, size);
#elif ARCHIVE_XATTR_DARWIN
size = getxattr(accpath, name, value, size, 0, XATTR_NOFOLLOW);
#elif ARCHIVE_XATTR_AIX
size = lgetea(accpath, name, value, size);
#endif
} else {
#if ARCHIVE_XATTR_LINUX
size = getxattr(accpath, name, value, size);
#elif ARCHIVE_XATTR_DARWIN
size = getxattr(accpath, name, value, size, 0, 0);
#elif ARCHIVE_XATTR_AIX
size = getea(accpath, name, value, size);
#endif
}
if (size == -1) {
archive_set_error(&a->archive, errno,
"Couldn't read extended attribute");
return (ARCHIVE_WARN);
}
archive_entry_xattr_add_entry(entry, name, value, size);
free(value);
return (ARCHIVE_OK);
}
