Fix buffer underrun in curses

2020-11-15 13:22:45 +02:00
parent 289c8d654d
commit 7cfc5a7142
1 changed files with 2 additions and 1 deletions
--- a/win/curses/cursmisc.c
+++ b/win/curses/cursmisc.c
@@ -691,7 +691,8 @@ curses_rtrim(char *str)
    char *s;

    for (s = str; *s != '\0'; ++s);
-    for (--s; isspace(*s) && s > str; --s);
+    if (s > str)
+        for (--s; isspace(*s) && s > str; --s);
    if (s == str)
        *s = '\0';
    else