[PATCH v12 19/24] cli: hush_modern: Enable if keyword

Francis Laniel
2023-12-08T22:33:55Z

Adds support for "if then else" construct both for command line interface and
through run_command().

Signed-off-by: Francis Laniel <francis.laniel@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
common/cli_hush_modern.c | 11 +++++++++++
common/cli_hush_upstream.c | 12 ++++--------
2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/common/cli_hush_modern.c b/common/cli_hush_modern.c
index 15bb1f0d92..6360747f21 100644
--- a/common/cli_hush_modern.c
+++ b/common/cli_hush_modern.c
@@ -33,6 +33,7 @@
*/
#define ENABLE_HUSH_INTERACTIVE 1
#define ENABLE_FEATURE_EDITING 1
+#define ENABLE_HUSH_IF 1
/* No MMU in U-Boot */
#define BB_MMU 0
#define USE_FOR_NOMMU(...) __VA_ARGS__
@@ -124,6 +125,11 @@ static void bb_error_msg(const char *s, ...)
va_end(p);
}

+static void bb_simple_error_msg(const char *s)
+{
+ bb_error_msg("%s", s);
+}
+
static void *xmalloc(size_t size)
{
void *p = NULL;
@@ -147,6 +153,11 @@ static void *xrealloc(void *ptr, size_t size)
return p;
}

+static void *xmemdup(const void *s, int n)
+{
+ return memcpy(xmalloc(n), s, n);
+}
+
#define xstrdup strdup
#define xstrndup strndup

diff --git a/common/cli_hush_upstream.c b/common/cli_hush_upstream.c
index a56ea6c5c8..06af538a48 100644
--- a/common/cli_hush_upstream.c
+++ b/common/cli_hush_upstream.c
@@ -1487,7 +1487,6 @@ static void msg_and_die_if_script(unsigned lineno, const char *fmt, ...)
die_if_script();
}

-#ifndef __U_BOOT__
static void syntax_error(unsigned lineno UNUSED_PARAM, const char *msg)
{
if (msg)
@@ -1496,7 +1495,6 @@ static void syntax_error(unsigned lineno UNUSED_PARAM, const char *msg)
bb_simple_error_msg("syntax error");
die_if_script();
}
-#endif /* !__U_BOOT__ */

static void syntax_error_at(unsigned lineno UNUSED_PARAM, const char *msg)
{
@@ -3961,7 +3959,6 @@ static void debug_print_tree(struct pipe *pi, int lvl)
[PIPE_OR ] = "OR" ,
[PIPE_BG ] = "BG" ,
};
-#ifndef __U_BOOT__
static const char *RES[] = {
[RES_NONE ] = "NONE" ,
# if ENABLE_HUSH_IF
@@ -3991,7 +3988,6 @@ static void debug_print_tree(struct pipe *pi, int lvl)
[RES_XXXX ] = "XXXX" ,
[RES_SNTX ] = "SNTX" ,
};
-#endif /* !__U_BOOT__ */
static const char *const CMDTYPE[] = {
"{}",
"()",
@@ -4009,10 +4005,8 @@ static void debug_print_tree(struct pipe *pi, int lvl)
lvl*2, "",
pin,
pi->num_cmds,
-#ifdef __U_BOOT__
(IF_HAS_KEYWORDS(pi->pi_inverted ? "! " :) ""),
RES[pi->res_word],
-#endif /* !__U_BOOT__ */
pi->followup, PIPE[pi->followup]
);
prn = 0;
@@ -9832,6 +9826,7 @@ static NOINLINE int run_pipe(struct pipe *pi)
rcode = 1; /* exitcode if redir failed */
#ifndef __U_BOOT__
if (setup_redirects(command, &squirrel) == 0) {
+#endif /* !__U_BOOT__ */
debug_printf_exec(": run_list\n");
//FIXME: we need to pass squirrel down into run_list()
//for SH_STANDALONE case, or else this construct:
@@ -9840,10 +9835,11 @@ static NOINLINE int run_pipe(struct pipe *pi)
//and in SH_STANDALONE mode, "find" is not execed,
//therefore CLOEXEC on saved fd does not help.
rcode = run_list(command->group) & 0xff;
+#ifndef __U_BOOT__
}
restore_redirects(squirrel);
- IF_HAS_KEYWORDS(if (pi->pi_inverted) rcode = !rcode;)
#endif /* !__U_BOOT__ */
+ IF_HAS_KEYWORDS(if (pi->pi_inverted) rcode = !rcode;)
debug_leave();
debug_printf_exec("run_pipe: return %d\n", rcode);
return rcode;
@@ -10362,12 +10358,12 @@ static int run_list(struct pipe *pi)
break;
if (G_flag_return_in_progress == 1)
break;
+#endif /* !__U_BOOT__ */

IF_HAS_KEYWORDS(rword = pi->res_word;)
debug_printf_exec(": rword=%d cond_code=%d last_rword=%d\n",
rword, cond_code, last_rword);

-#endif /* !__U_BOOT__ */
sv_errexit_depth = G.errexit_depth;
if (
#if ENABLE_HUSH_IF
--
2.34.1