hush: fix raw ^C handlisg in single-quoted strings

function                                             old     new   delta
parse_stream                                        2719    2754     +35

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

1 files changed, 5 insertions, 0 deletions

diff --git a/shell/hush.c b/shell/hush.c
index fc8940d3d..79d7a53dd 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -5225,6 +5225,11 @@ static struct pipe *parse_stream(char **pstring,
                                         nommu_addchr(&ctx.as_string, ch);
                                         if (ch == '\'')
                                                 break;
+                                        if (ch == SPECIAL_VAR_SYMBOL) {
+                                                /* Convert raw ^C to corresponding special variable reference */
+                                                o_addchr(&dest, SPECIAL_VAR_SYMBOL);
+                                                o_addchr(&dest, SPECIAL_VAR_QUOTED_SVS);
+                                        }
                                         o_addqchr(&dest, ch);
                                 }
                         }