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[80.103.97.17]) by smtp.gmail.com with ESMTPSA id n4-20020a05600c4f8400b003971fc23185sm7912044wmq.20.2022.06.16.15.33.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jun 2022 15:33:09 -0700 (PDT) From: Francis Laniel To: u-boot@lists.denx.de Cc: Marek Behun , Michael Nazzareno Trimarchi , Simon Glass , Wolfgang Denk , Harald Seiler , Tom Rini , Francis Laniel Subject: [RFC PATCH v4 15/28] cli: hush_2021: Add functions to be called from run_command() Date: Fri, 17 Jun 2022 00:31:45 +0200 Message-Id: <20220616223158.9225-16-francis.laniel@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220616223158.9225-1-francis.laniel@amarulasolutions.com> References: <20220616223158.9225-1-francis.laniel@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean run_command() is called internally by the command run and it can also be called directly from U-Boot code, e.g. to do unit tests. This commit adds this path to go to hush 2021. Signed-off-by: Francis Laniel Reviewed-by: Simon Glass --- common/cli_hush_upstream.c | 66 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 63 insertions(+), 3 deletions(-) diff --git a/common/cli_hush_upstream.c b/common/cli_hush_upstream.c index 89df34a867..d03aff8fae 100644 --- a/common/cli_hush_upstream.c +++ b/common/cli_hush_upstream.c @@ -1012,6 +1012,7 @@ struct globals { #ifdef __U_BOOT__ int flag_repeat; int do_repeat; + int run_command_flags; #endif /* __U_BOOT__ */ char *ifs_whitespace; /* = G.ifs or malloced */ #ifndef __U_BOOT__ @@ -3006,7 +3007,24 @@ static int i_getch(struct in_str *i) if (i->p && *i->p != '\0') { ch = (unsigned char)*i->p++; goto out; +#ifndef __U_BOOT__ } +#else /* __U_BOOT__ */ + /* + * There are two ways for command to be called: + * 1. The first one is when they are typed by the user. + * 2. The second one is through run_command() (NOTE command run + * internally calls run_command()). + * + * In the second case, we do not get input from the user, so once we + * get a '\0', it means we need to stop. + * NOTE G.run_command_flags is only set on run_command call stack, so + * we use this to know if we come from user input or run_command(). + */ + } else if (i->p && *i->p == '\0' && G.run_command_flags){ + return EOF; + } +#endif /* __U_BOOT__ */ #endif #ifndef __U_BOOT__ /* peek_buf[] is an int array, not char. Can contain EOF. */ @@ -3165,7 +3183,6 @@ static void setup_file_in_str(struct in_str *i) #endif /* !__U_BOOT__ */ } -#ifndef __U_BOOT__ static void setup_string_in_str(struct in_str *i, const char *s) { memset(i, 0, sizeof(*i)); @@ -3173,7 +3190,6 @@ static void setup_string_in_str(struct in_str *i, const char *s) i->p = s; } -#endif /* !__U_BOOT__ */ /* * o_string support @@ -7912,7 +7928,11 @@ static int run_and_free_list(struct pipe *pi); * NUL: parse all, execute, return * ';': parse till ';' or newline, execute, repeat till EOF */ +#ifndef __U_BOOT__ static void parse_and_run_stream(struct in_str *inp, int end_trigger) +#else /* __U_BOOT__ */ +static int parse_and_run_stream(struct in_str *inp, int end_trigger) +#endif /* __U_BOOT__ */ { /* Why we need empty flag? * An obscure corner case "false; ``; echo $?": @@ -7921,7 +7941,11 @@ static void parse_and_run_stream(struct in_str *inp, int end_trigger) * this breaks "false; echo `echo $?`" case. */ bool empty = 1; +#ifndef __U_BOOT__ while (1) { +#else /* __U_BOOT__ */ + do { +#endif /* __U_BOOT__ */ struct pipe *pipe_list; #if ENABLE_HUSH_INTERACTIVE @@ -7958,21 +7982,57 @@ static void parse_and_run_stream(struct in_str *inp, int end_trigger) empty = 0; if (G_flag_return_in_progress == 1) break; +#ifndef __U_BOOT__ } +#else /* __U_BOOT__ */ + /* + * This do/while is needed by run_command to avoid looping on a command + * with syntax error. + */ + } while (!(G.run_command_flags & FLAG_EXIT_FROM_LOOP)); + + return G.last_exitcode; +#endif /* __U_BOOT__ */ } #ifndef __U_BOOT__ static void parse_and_run_string(const char *s) +#else /* __U_BOOT__ */ +static int parse_and_run_string(const char *s) +#endif /* __U_BOOT__ */ { struct in_str input; //IF_HUSH_LINENO_VAR(unsigned sv = G.parse_lineno;) setup_string_in_str(&input, s); +#ifndef __U_BOOT__ parse_and_run_stream(&input, '\0'); +#else /* __U_BOOT__ */ + return parse_and_run_stream(&input, '\0'); +#endif /* __U_BOOT__ */ //IF_HUSH_LINENO_VAR(G.parse_lineno = sv;) } -#endif /* !__U_BOOT__ */ +#ifdef __U_BOOT__ +int parse_string_outer(const char *cmd, int flags) +{ + int ret; + int old_flags; + + /* + * Keep old values of run_command to be able to restore them once + * command was executed. + */ + old_flags = G.run_command_flags; + G.run_command_flags = flags; + + ret = parse_and_run_string(cmd); + + G.run_command_flags = old_flags; + + return ret; +} +#endif /* __U_BOOT__ */ #ifndef __U_BOOT__ static void parse_and_run_file(HFILE *fp) #else /* __U_BOOT__ */ -- 2.25.1