fix wordexp not to read past end of string ending with lone backslash

diff --git a/src/misc/wordexp.c b/src/misc/wordexp.c
index d123cf7..db83a69 100644 (file)
--- a/src/misc/wordexp.c
+++ b/src/misc/wordexp.c
@@ -42,7 +42,7 @@ static int do_wordexp(const char *s, wordexp_t *we, int flags)
 
        if (flags & WRDE_NOCMD) for (i=0; s[i]; i++) switch (s[i]) {
        case '\\':
-               if (!sq) i++;
+               if (!sq && !s[++i]) return WRDE_SYNTAX;
                break;
        case '\'':
                if (!dq) sq^=1;