run_command_list() is supposed to return a return code of 0 for success and 1 for failure. Add a few simple tests that confirm this. These tests work both with the built-in parser and hush.

Signed-off-by: Simon Glass sjg@chromium.org ---

test/command_ut.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/test/command_ut.c b/test/command_ut.c index aaa1ee2..b2666bf 100644 --- a/test/command_ut.c +++ b/test/command_ut.c @@ -61,6 +61,11 @@ static int do_ut_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) "setenv list ${list}3", strlen("setenv list 1"), 0); assert(!strcmp("1", getenv("list")));

+ assert(run_command("false", 0) == 1); + assert(run_command("echo", 0) == 0); + assert(run_command_list("false", -1, 0) == 1); + assert(run_command_list("echo", -1, 0) == 0); + #ifdef CONFIG_SYS_HUSH_PARSER /* Test the 'test' command */

When a simple command like 'false' is provided, hush should return the result of that command. However, hush only does this if the FLAG_EXIT_FROM_LOOP flag is provided. Without this flag, hush will happily execute the empty string command immediate after 'false' and then return a success code.

This behaviour does not seem very useful, and requiring the flag also seems wrong, since it means that hush will execute only the first command in a sequence.

Add a check for empty string and fall out of the loop in that case. That at least fixes the simple command case. This is a change in behaviour but it is unlikely that the old behaviour would be considered correct in any case.

Reported-by: Stefan Herbrechtsmeier stefan@herbrechtsmeier.net Signed-off-by: Simon Glass sjg@chromium.org ---

common/hush.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/hush.c b/common/hush.c index 5b43224..7a16795 100644 --- a/common/hush.c +++ b/common/hush.c @@ -3218,7 +3218,9 @@ static int parse_stream_outer(struct in_str *inp, int flag) free_pipe_list(ctx.list_head,0); } b_free(&temp); - } while (rcode != -1 && !(flag & FLAG_EXIT_FROM_LOOP)); /* loop on syntax errors, return on EOF */ + /* loop on syntax errors, return on EOF */ + } while (rcode != -1 && !(flag & FLAG_EXIT_FROM_LOOP) && + (inp->peek != static_peek || b_peek(inp))); #ifndef __U_BOOT__ return 0; #else

The return code is not consistent with builtin_run_command_list(). For the last command in a sequence, the return code is actually inverted.

Fix it. Signed-off-by: Simon Glass sjg@chromium.org ---

common/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/main.c b/common/main.c index 9bee7bd..e2350bd 100644 --- a/common/main.c +++ b/common/main.c @@ -1485,7 +1485,7 @@ static int builtin_run_command_list(char *cmd, int flag) ++next; } if (rcode == 0 && *line) - rcode = (builtin_run_command(line, 0) >= 0); + rcode = (builtin_run_command(line, 0) < 0);

return rcode; }