int find_name(char *pchName,stack_t *pResult) {
int iRC = EXIT_FAILURE;
if (0 == pchName[0]) {
return (EXIT_SUCCESS);
}
if ( exists1(pchName[0]) ) {
push(pResult,pchName[0]);
iRC = find_name(((char *)&pchName[1]),pResult);
}
// Edge case, it could find something with one char which
// is a dead end, so we have to try to double chars
// so continue on. However, if it finds one and it is the
// last char we stop.
if (iRC == EXIT_SUCCESS && (0 == pchName[1])) {
return iRC;
}
// Edge case, if we don't have two chars left, we must
// stop looking.
if (0 == pchName[1]) {
pop(pResult); // Toss the last success
return EXIT_FAILURE;
}
if (exists2(pchName[0],pchName[1] )) {
push(pResult,pchName[0]);
push(pResult,pchName[1]+32);
iRC = find_name(((char *)&pchName[2]),pResult);
}
return iRC;
}
MODRET copy_cpfr(cmd_rec *cmd) {
register unsigned int i;
int res;
char *path = "";
unsigned char *authenticated = NULL;
if (copy_engine == FALSE) {
return PR_DECLINED(cmd);
}
if (cmd->argc < 3 ||
strncasecmp(cmd->argv[1], "CPFR", 5) != 0) {
return PR_DECLINED(cmd);
}
authenticated = get_param_ptr(cmd->server->conf, "authenticated", FALSE);
if (authenticated == NULL ||
*authenticated == FALSE) {
pr_response_add_err(R_530, _("Please login with USER and PASS"));
pr_cmd_set_errno(cmd, EPERM);
errno = EPERM;
return PR_ERROR(cmd);
}
CHECK_CMD_MIN_ARGS(cmd, 3);
/* Construct the target file name by concatenating all the parameters after
* the "SITE CPFR", separating them with spaces.
*/
for (i = 2; i <= cmd->argc-1; i++) {
char *decoded_path;
decoded_path = pr_fs_decode_path2(cmd->tmp_pool, cmd->argv[i],
FSIO_DECODE_FL_TELL_ERRORS);
if (decoded_path == NULL) {
int xerrno = errno;
pr_log_debug(DEBUG8, "'%s' failed to decode properly: %s",
(char *) cmd->argv[i], strerror(xerrno));
pr_response_add_err(R_550,
_("%s: Illegal character sequence in filename"), cmd->arg);
pr_cmd_set_errno(cmd, xerrno);
errno = xerrno;
return PR_ERROR(cmd);
}
path = pstrcat(cmd->tmp_pool, path, *path ? " " : "", decoded_path, NULL);
}
res = pr_filter_allow_path(CURRENT_CONF, path);
switch (res) {
case 0:
break;
case PR_FILTER_ERR_FAILS_ALLOW_FILTER:
pr_log_debug(DEBUG2, MOD_COPY_VERSION
": 'CPFR %s' denied by PathAllowFilter", path);
pr_response_add_err(R_550, _("%s: Forbidden filename"), path);
pr_cmd_set_errno(cmd, EPERM);
errno = EPERM;
return PR_ERROR(cmd);
case PR_FILTER_ERR_FAILS_DENY_FILTER:
pr_log_debug(DEBUG2, MOD_COPY_VERSION
": 'CPFR %s' denied by PathDenyFilter", path);
pr_response_add_err(R_550, _("%s: Forbidden filename"), path);
pr_cmd_set_errno(cmd, EPERM);
errno = EPERM;
return PR_ERROR(cmd);
}
/* Allow renaming a symlink, even a dangling one. */
path = dir_canonical_vpath(cmd->tmp_pool, path);
if (!path ||
!dir_check_canon(cmd->tmp_pool, cmd, cmd->group, path, NULL) ||
!exists2(cmd->tmp_pool, path)) {
int xerrno = errno;
pr_response_add_err(R_550, "%s: %s", path, strerror(xerrno));
pr_cmd_set_errno(cmd, xerrno);
errno = xerrno;
return PR_ERROR(cmd);
}
if (pr_table_add(session.notes, "mod_copy.cpfr-path",
pstrdup(session.pool, path), 0) < 0) {
pr_trace_msg(trace_channel, 4,
"error adding 'mod_copy.cpfr-path' note: %s", strerror(errno));
}
pr_response_add(R_350,
_("File or directory exists, ready for destination name"));
return PR_HANDLED(cmd);
}
int exists(const char *path) {
return exists2(NULL, path);
}