bool gfapi_device::d_truncate(DCR *dcr)
{
struct stat st;
if (m_gfd) {
if (glfs_ftruncate(m_gfd, 0) != 0) {
berrno be;
Mmsg2(errmsg, _("Unable to truncate device %s. ERR=%s\n"),
print_name(), be.bstrerror());
Emsg0(M_FATAL, 0, errmsg);
return false;
}
/*
* Check for a successful glfs_truncate() and issue work-around when truncation doesn't work.
*
* 1. close file
* 2. delete file
* 3. open new file with same mode
* 4. change ownership to original
*/
if (glfs_fstat(m_gfd, &st) != 0) {
berrno be;
Mmsg2(errmsg, _("Unable to stat device %s. ERR=%s\n"), print_name(), be.bstrerror());
return false;
}
if (st.st_size != 0) { /* glfs_truncate() didn't work */
glfs_close(m_gfd);
glfs_unlink(m_glfs, getVolCatName());
set_mode(CREATE_READ_WRITE);
/*
* Recreate the file -- of course, empty
*/
m_gfd = glfs_creat(m_glfs, getVolCatName(), oflags, st.st_mode);
if (!m_gfd) {
berrno be;
dev_errno = errno;
Mmsg2(errmsg, _("Could not reopen: %s, ERR=%s\n"), getVolCatName(), be.bstrerror());
Emsg0(M_FATAL, 0, errmsg);
return false;
}
/*
* Reset proper owner
*/
glfs_chown(m_glfs, getVolCatName(), st.st_uid, st.st_gid);
}
}
return true;
}
int
main(int argc, char *argv[])
{
int ret = -1;
int flags = O_RDWR | O_SYNC;
glfs_t *fs = NULL;
glfs_fd_t *fd = NULL;
char *volname = NULL;
char *logfile = NULL;
const char *filename = "file_tmp";
struct glfs_object *object = NULL;
acl_t acl = NULL;
struct stat sb;
if (argc != 3) {
fprintf(stderr, "Invalid argument\n");
return 1;
}
volname = argv[1];
logfile = argv[2];
fs = glfs_new(volname);
if (!fs)
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_new", ret, out);
ret = glfs_set_volfile_server(fs, "tcp", "localhost", 24007);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_set_volfile_server", ret, out);
ret = glfs_set_logging(fs, logfile, 7);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_set_logging", ret, out);
ret = glfs_init(fs);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_init", ret, out);
fd = glfs_creat(fs, filename, flags, 0044);
if (fd == NULL) {
ret = -1;
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_creat", ret, out);
}
glfs_close(fd);
object = glfs_h_lookupat(fs, NULL, filename, NULL, 0);
if (object == NULL) {
ret = -1;
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_lookupat", ret, out);
}
ret = glfs_chown(fs, filename, 99, 99);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_chown", ret, out);
ret = glfs_setfsuid(99);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_setfsuid", ret, out);
ret = glfs_setfsgid(99);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_setfsgid", ret, out);
acl = glfs_h_acl_get(fs, object, ACL_TYPE_ACCESS);
if (acl == NULL) {
ret = -1;
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_acl_get", ret, out);
}
ret = glfs_h_acl_set(fs, object, ACL_TYPE_ACCESS, acl);
VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_acl_get", ret, out);
out:
glfs_setfsuid(0);
glfs_setfsgid(0);
if (object)
glfs_h_close(object);
if (fs)
glfs_fini(fs);
return ret;
}
int glfs_java_chown(glfs_t *glfs, const char *path, unsigned int uid, unsigned int gid){
return glfs_chown (glfs, path, uid, gid);
}
