libbb/lineedit: restore ^D handling for unicode

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 3689b4b..9b112bc 100644 (file)
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -114,8 +114,8 @@ struct lineedit_statics {
        unsigned cmdedit_prmt_len; /* length of prompt (without colors etc) */
 
        unsigned cursor;
-       unsigned command_len;
-       /* *int* maxsize: we want x in "if (x > S.maxsize)"
+       int command_len; /* must be signed */
+       /* signed maxsize: we want x in "if (x > S.maxsize)"
         * to _not_ be promoted to unsigned */
        int maxsize;
        CHAR_T *command_ps;
@@ -2124,7 +2124,9 @@ int FAST_FUNC read_line_input(const char *prompt, char *command, int maxsize, li
 #undef command
 
 #if ENABLE_FEATURE_ASSUME_UNICODE
-       command_len = save_string(command, maxsize - 1);
+       command[0] = '\0';
+       if (command_len > 0)
+               command_len = save_string(command, maxsize - 1);
        free(command_ps);
 #endif