rosh: Fix rosh_ls_arg() to prevent segfault on access denied

diff --git a/com32/rosh/rosh.c b/com32/rosh/rosh.c
index bed75cc..8d4b501 100644 (file)
--- a/com32/rosh/rosh.c
+++ b/com32/rosh/rosh.c
@@ -779,7 +779,12 @@ void rosh_ls_arg(const char *filestr, const int *optarr)
        if (S_ISDIR(fdstat.st_mode)) {
            ROSH_DEBUG("PATH '%s' is a directory\n", filestr);
            d = opendir(filestr);
-           rosh_ls_arg_dir(filestr, d, optarr);
+           if (d) {
+               rosh_ls_arg_dir(filestr, d, optarr);
+           } else {
+               rosh_error(errno, "ls", filestr);
+               errno = 0;
+           }
            closedir(d);
        } else {
            de.d_ino = rosh_ls_d_ino(&fdstat);