/**
* Print a list of available commands
*
* @param pf Print function
* @param commands Commands container
*
* @return 0 if success, otherwise errorcode
*/
int cmd_print(struct re_printf *pf, const struct commands *commands)
{
int err = 0;
if (!pf)
return EINVAL;
err |= re_hprintf(pf, "--- Help ---\n");
err |= cmd_print_all(pf, commands, true, true, NULL, 0);
err |= re_hprintf(pf, "\n");
return err;
}
static
#endif
int real_main(int argc, char *argv[])
{
int ret=1;
int option=0;
int daemon=1;
int forking=1;
int strip=0;
int randomise=0;
struct lock *lock=NULL;
struct conf **confs=NULL;
int forceoverwrite=0;
enum action act=ACTION_LIST;
const char *backup=NULL;
const char *backup2=NULL;
char *restoreprefix=NULL;
char *stripfrompath=NULL;
const char *regex=NULL;
const char *browsefile=NULL;
char *browsedir=NULL;
const char *conffile=get_conf_path();
const char *orig_client=NULL;
const char *logfile=NULL;
// The orig_client is the original client that the normal client
// would like to restore from.
#ifndef HAVE_WIN32
int generate_ca_only=0;
#endif
int vss_restore=1;
int test_confs=0;
enum burp_mode mode;
log_init(argv[0]);
#ifndef HAVE_WIN32
if(!strcmp(prog, "bedup"))
return run_bedup(argc, argv);
if(!strcmp(prog, "bsigs"))
return run_bsigs(argc, argv);
#endif
while((option=getopt(argc, argv, "a:b:c:C:d:fFghil:nq:Qr:s:tvxjz:?"))!=-1)
{
switch(option)
{
case 'a':
if(parse_action(&act, optarg)) goto end;
break;
case 'b':
// The diff command may have two backups
// specified.
if(!backup2 && backup) backup2=optarg;
if(!backup) backup=optarg;
break;
case 'c':
conffile=optarg;
break;
case 'C':
orig_client=optarg;
break;
case 'd':
restoreprefix=optarg; // for restores
browsedir=optarg; // for lists
break;
case 'f':
forceoverwrite=1;
break;
case 'F':
daemon=0;
break;
case 'g':
#ifndef HAVE_WIN32
generate_ca_only=1;
#endif
break;
case 'i':
cmd_print_all();
ret=0;
goto end;
case 'l':
logfile=optarg;
break;
case 'n':
forking=0;
break;
case 'q':
randomise=atoi(optarg);
break;
case 'Q':
log_force_quiet();
break;
case 'r':
regex=optarg;
break;
case 's':
strip=atoi(optarg);
break;
case 'v':
printf("%s-%s\n", progname(), VERSION);
ret=0;
goto end;
case 'x':
vss_restore=0;
break;
case 't':
test_confs=1;
break;
case 'z':
browsefile=optarg;
break;
case 'h':
case '?':
default:
usage();
goto end;
}
}
if(optind<argc)
{
usage();
goto end;
}
if(act==ACTION_MONITOR)
{
// Try to output everything in JSON.
log_set_json(1);
#ifndef HAVE_WIN32
// Need to do this so that processes reading stdout get the
// result of the printfs of logp straight away.
setlinebuf(stdout);
#endif
}
if(!(confs=confs_alloc()))
goto end;
if(reload(confs, conffile, 1))
goto end;
// Dry run to test config file syntax.
if(test_confs)
{
ret=run_test_confs(confs, orig_client);
goto end;
}
if(!backup) switch(act)
{
case ACTION_DELETE:
logp("No backup specified for deletion.\n");
goto end;
case ACTION_RESTORE:
case ACTION_VERIFY:
case ACTION_DIFF:
case ACTION_DIFF_LONG:
logp("No backup specified. Using the most recent.\n");
backup="0";
default:
break;
}
if(!backup2) switch(act)
{
case ACTION_DIFF:
case ACTION_DIFF_LONG:
logp("No second backup specified. Using file system scan.\n");
backup2="n"; // For 'next'.
default:
break;
}
// The logfile option is only used for the status client stuff.
if(logfile
&& (act!=ACTION_STATUS
&& act!=ACTION_STATUS_SNAPSHOT))
logp("-l <logfile> option obsoleted\n");
if(orig_client
&& *orig_client
&& set_string(confs[OPT_ORIG_CLIENT], orig_client))
goto end;
// The random delay needs to happen before the lock is got, otherwise
// you would never be able to use burp by hand.
if(randomise) set_int(confs[OPT_RANDOMISE], randomise);
mode=get_e_burp_mode(confs[OPT_BURP_MODE]);
if(mode==BURP_MODE_CLIENT
&& (act==ACTION_BACKUP_TIMED || act==ACTION_TIMER_CHECK))
random_delay(confs);
if(mode==BURP_MODE_SERVER
&& act==ACTION_CHAMP_CHOOSER)
{
// These server modes need to run without getting the lock.
}
else if(mode==BURP_MODE_CLIENT
&& (act==ACTION_LIST
|| act==ACTION_LIST_LONG
|| act==ACTION_DIFF
|| act==ACTION_DIFF_LONG
|| act==ACTION_STATUS
|| act==ACTION_STATUS_SNAPSHOT
|| act==ACTION_MONITOR))
{
// These client modes need to run without getting the lock.
}
else
{
const char *lockfile=confs_get_lockfile(confs);
if(!(lock=lock_alloc_and_init(lockfile)))
goto end;
lock_get(lock);
switch(lock->status)
{
case GET_LOCK_GOT: break;
case GET_LOCK_NOT_GOT:
logp("Could not get lockfile.\n");
logp("Another process is probably running,\n");
goto end;
case GET_LOCK_ERROR:
default:
logp("Could not get lockfile.\n");
logp("Maybe you do not have permissions to write to %s.\n", lockfile);
goto end;
}
}
set_int(confs[OPT_OVERWRITE], forceoverwrite);
set_int(confs[OPT_STRIP], strip);
set_int(confs[OPT_FORK], forking);
set_int(confs[OPT_DAEMON], daemon);
strip_trailing_slashes(&restoreprefix);
strip_trailing_slashes(&browsedir);
if(replace_conf_str(confs[OPT_BACKUP], backup)
|| replace_conf_str(confs[OPT_BACKUP2], backup2)
|| replace_conf_str(confs[OPT_RESTOREPREFIX], restoreprefix)
|| replace_conf_str(confs[OPT_STRIP_FROM_PATH], stripfrompath)
|| replace_conf_str(confs[OPT_REGEX], regex)
|| replace_conf_str(confs[OPT_BROWSEFILE], browsefile)
|| replace_conf_str(confs[OPT_BROWSEDIR], browsedir)
|| replace_conf_str(confs[OPT_MONITOR_LOGFILE], logfile))
goto end;
base64_init();
hexmap_init();
if(mode==BURP_MODE_SERVER)
{
#ifdef HAVE_WIN32
logp("Sorry, server mode is not implemented for Windows.\n");
#else
ret=server_modes(act,
conffile, lock, generate_ca_only, confs);
#endif
}
else
{
ret=client(confs, act, vss_restore);
}
end:
lock_release(lock);
lock_free(&lock);
confs_free(&confs);
return ret;
}
static int editor_input(struct commands *commands, struct mbuf *mb, char key,
struct re_printf *pf, bool *del, bool is_long)
{
int err = 0;
switch (key) {
case KEYCODE_ESC:
*del = true;
return re_hprintf(pf, "\nCancel\n");
case KEYCODE_NONE:
case KEYCODE_REL:
break;
case '\n':
*del = true;
return re_hprintf(pf, "\n");
case '\b':
case KEYCODE_DEL:
if (mb->pos > 0) {
err |= re_hprintf(pf, "\b ");
mb->pos = mb->end = (mb->pos - 1);
}
break;
case '\t':
if (is_long) {
const struct cmd *cmd = NULL;
size_t n;
err = re_hprintf(pf,
"TAB completion for \"%b\":\n",
mb->buf, mb->end);
if (err)
return err;
/* Find all long commands that matches the N
* first characters of the input string.
*
* If the number of matches is exactly one,
* we can regard it as TAB completion.
*/
err = cmd_print_all(pf, commands, true, false,
(char *)mb->buf, mb->end);
if (err)
return err;
n = get_match(commands, &cmd,
(char *)mb->buf, mb->end);
if (n == 1 && cmd) {
mb->pos = 0;
mbuf_write_str(mb, cmd->name);
}
else if (n == 0) {
err = re_hprintf(pf, "(none)\n");
}
}
else {
err = mbuf_write_u8(mb, key);
}
break;
default:
err = mbuf_write_u8(mb, key);
break;
}
if (is_long) {
err |= re_hprintf(pf, "\r/%b",
mb->buf, mb->end);
}
else
err |= re_hprintf(pf, "\r> %32b", mb->buf, mb->end);
return err;
}
/**
* Process input characters to the command system
*
* @param commands Commands container
* @param ctxp Pointer to context for editor (optional)
* @param key Input character
* @param pf Print function
* @param data Application data
*
* @return 0 if success, otherwise errorcode
*/
int cmd_process(struct commands *commands, struct cmd_ctx **ctxp, char key,
struct re_printf *pf, void *data)
{
const struct cmd *cmd;
if (!commands)
return EINVAL;
if (key == KEYCODE_NONE) {
warning("cmd: process: illegal keycode NONE\n");
return EINVAL;
}
/* are we in edit-mode? */
if (ctxp && *ctxp) {
if (key == KEYCODE_REL)
return 0;
return cmd_process_edit(commands, ctxp, key, pf, data);
}
cmd = cmd_find_by_key(commands, key);
if (cmd) {
struct cmd_arg arg;
/* check for parameters */
if (cmd->flags & CMD_PRM) {
int err = 0;
if (ctxp) {
err = ctx_alloc(ctxp, cmd);
if (err)
return err;
}
key = isdigit(key) ? key : KEYCODE_REL;
return cmd_process_edit(commands, ctxp, key, pf, data);
}
arg.key = key;
arg.prm = NULL;
arg.complete = true;
arg.data = data;
return cmd->h(pf, &arg);
}
else if (key == LONG_PREFIX) {
int err;
err = re_hprintf(pf, "%c", LONG_PREFIX);
if (err)
return err;
if (!ctxp) {
warning("cmd: ctxp is required\n");
return EINVAL;
}
err = ctx_alloc(ctxp, cmd);
if (err)
return err;
(*ctxp)->is_long = true;
return 0;
}
else if (key == '\t') {
return cmd_print_all(pf, commands, false, true, NULL, 0);
}
if (key == KEYCODE_REL)
return 0;
return cmd_print(pf, commands);
}
int main (int argc, char *argv[])
{
int ret=1;
int option=0;
int daemon=1;
int forking=1;
int strip=0;
struct lock *lock=NULL;
struct conf *conf=NULL;
int forceoverwrite=0;
enum action act=ACTION_LIST;
const char *backup=NULL;
const char *restoreprefix=NULL;
const char *regex=NULL;
const char *browsefile=NULL;
const char *browsedir=NULL;
const char *conffile=get_conf_path();
const char *orig_client=NULL;
// The orig_client is the original client that the normal client
// would like to restore from.
#ifndef HAVE_WIN32
const char *sclient=NULL; // Status monitor client to view.
int generate_ca_only=0;
#endif
int vss_restore=1;
int json=0;
init_log(argv[0]);
while((option=getopt(argc, argv, "a:b:c:C:d:ghfFil:nr:s:vxjz:?"))!=-1)
{
switch(option)
{
case 'a':
if(parse_action(&act, optarg)) goto end;
break;
case 'b':
backup=optarg;
break;
case 'c':
conffile=optarg;
break;
case 'C':
orig_client=optarg;
#ifndef HAVE_WIN32
sclient=optarg;
#endif
break;
case 'd':
restoreprefix=optarg; // for restores
browsedir=optarg; // for lists
break;
case 'f':
forceoverwrite=1;
break;
case 'F':
daemon=0;
break;
case 'g':
#ifndef HAVE_WIN32
generate_ca_only=1;
#endif
break;
case 'i':
cmd_print_all();
ret=0;
goto end;
case 'l':
logp("-l <logfile> option obsoleted\n");
break;
case 'n':
forking=0;
break;
case 'r':
regex=optarg;
break;
case 's':
strip=atoi(optarg);
break;
case 'v':
printf("%s-%s\n", progname(), VERSION);
ret=0;
goto end;
case 'x':
vss_restore=0;
break;
case 'j':
json=1;
break;
case 'z':
browsefile=optarg;
break;
case 'h':
case '?':
default:
usage();
goto end;
}
}
if(optind<argc)
{
usage();
goto end;
}
if(!(conf=conf_alloc()))
goto end;
if(reload(conf, conffile,
1 /* first time */,
0 /* no oldmax_children setting */,
0 /* no oldmax_status_children setting */,
json)) goto end;
if((act==ACTION_RESTORE || act==ACTION_VERIFY) && !backup)
{
logp("No backup specified. Using the most recent.\n");
backup="0";
}
if(act==ACTION_DELETE && !backup)
{
logp("No backup specified for deletion.\n");
goto end;
}
if(conf->mode==MODE_CLIENT)
{
if(orig_client && *orig_client)
{
if(!(conf->orig_client=strdup(orig_client)))
{
log_out_of_memory(__func__);
goto end;
}
}
}
if(conf->mode==MODE_SERVER
&& (act==ACTION_STATUS
|| act==ACTION_STATUS_SNAPSHOT
|| act==ACTION_CHAMP_CHOOSER))
{
// These server modes need to run without getting the lock.
}
else
{
if(!(lock=lock_alloc_and_init(conf->lockfile)))
goto end;
lock_get(lock);
switch(lock->status)
{
case GET_LOCK_GOT:
break;
case GET_LOCK_NOT_GOT:
logp("Could not get lockfile.\n");
logp("Another process is probably running,\n");
goto end;
case GET_LOCK_ERROR:
default:
logp("Could not get lockfile.\n");
logp("Maybe you do not have permissions to write to %s.\n", conf->lockfile);
goto end;
}
}
conf->overwrite=forceoverwrite;
conf->strip=strip;
conf->forking=forking;
conf->daemon=daemon;
if(replace_conf_str(backup, &conf->backup)
|| replace_conf_str(restoreprefix, &conf->restoreprefix)
|| replace_conf_str(regex, &conf->regex)
|| replace_conf_str(browsefile, &conf->browsefile)
|| replace_conf_str(browsedir, &conf->browsedir))
goto end;
if(conf->mode==MODE_SERVER)
{
#ifdef HAVE_WIN32
logp("Sorry, server mode is not implemented for Windows.\n");
#else
if(act==ACTION_STATUS || act==ACTION_STATUS_SNAPSHOT)
{
// We are running on the server machine, being a client
// of the burp server, getting status information.
ret=status_client_ncurses(conf, act, sclient);
}
else if(act==ACTION_CHAMP_CHOOSER)
{
// We are running on the server machine, wanting to
// be a standalone champion chooser process.
if(!sclient || !*sclient)
{
logp("No client name specified for standalone champion chooser process.\n");
logp("Try using the '-C' option.\n");
ret=1;
}
else
ret=champ_chooser_server_standalone(conf,
sclient);
}
else
ret=server(conf, conffile, lock, generate_ca_only);
#endif
}
else
{
logp("before client\n");
ret=client(conf, act, vss_restore, json);
logp("after client\n");
}
end:
lock_release(lock);
lock_free(&lock);
conf_free(conf);
return ret;
}
