diff mbox

[OpenWrt-Devel,07/12] cli: fix printing option values occupying multiple lines.

Message ID 1418633213-50491-8-git-send-email-yszhou4tech@gmail.com
State Superseded
Headers show

Commit Message

Yousong Zhou Dec. 15, 2014, 8:46 a.m. UTC
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---
 cli.c |   40 ++++++++++++++++++++++++++++++----------
 1 file changed, 30 insertions(+), 10 deletions(-)

Comments

Yousong Zhou Dec. 16, 2014, 8:28 a.m. UTC | #1
On 15 December 2014 at 16:46, Yousong Zhou <yszhou4tech@gmail.com> wrote:
>
> Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
> ---
>  cli.c |   40 ++++++++++++++++++++++++++++++----------
>  1 file changed, 30 insertions(+), 10 deletions(-)
>
> diff --git a/cli.c b/cli.c
> index 6fbbfe9..85a24d8 100644
> --- a/cli.c
> +++ b/cli.c
> @@ -168,18 +168,36 @@ static void cli_perror(void)
>         uci_perror(ctx, appname);
>  }
>
> -static void uci_show_value(struct uci_option *o)
> +static void uci_print_value(FILE *f, const char *v)
> +{
> +       fprintf(f, "'");
> +       while (*v) {
> +               if (*v != '\'')
> +                       fputc(*v, f);
> +               else
> +                       fprintf(f, "'\\''");
> +               v++;
> +       }
> +       fprintf(f, "'");
> +}
> +
> +static void uci_show_value(struct uci_option *o, bool quote)
>  {
>         struct uci_element *e;
>         bool sep = false;
>
>         switch(o->type) {
>         case UCI_TYPE_STRING:
> -               printf("%s\n", o->v.string);
> +               if (quote)
> +                       uci_print_value(stdout, o->v.string);
> +               else
> +                       printf("%s", o->v.string);
> +               printf("\n");
>                 break;
>         case UCI_TYPE_LIST:
>                 uci_foreach_element(&o->v.list, e) {
> -                       printf("%s%s", (sep ? delimiter : ""), e->name);
> +                       printf("%s", (sep ? delimiter : ""));
> +                       uci_print_value(stdout, e->name);
>                         sep = true;
>                 }

While `config_foreach` works okay with this change.  I may note that
this will break usages like the following

                network=$(uci get sockd.instance0.internal_network)
                status=$(ifstatus "$network")

where option `internal_network` is of list type, thus the value will
be quoted resulting a call to ifstatus like the following.

                ifstatus "'vpn'"

which is invalid of course.  Anyway, I think `config_foreach` should
be used in such cases.

Regards.

                yousong


>                 printf("\n");
> @@ -190,13 +208,13 @@ static void uci_show_value(struct uci_option *o)
>         }
>  }
Yousong Zhou Dec. 16, 2014, 8:31 a.m. UTC | #2
On 16 December 2014 at 16:28, Yousong Zhou <yszhou4tech@gmail.com> wrote:
> On 15 December 2014 at 16:46, Yousong Zhou <yszhou4tech@gmail.com> wrote:
>>
>> Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
>> ---
>> +static void uci_show_value(struct uci_option *o, bool quote)
>>  {
>>         struct uci_element *e;
>>         bool sep = false;
>>
>>         switch(o->type) {
>>         case UCI_TYPE_STRING:
>> -               printf("%s\n", o->v.string);
>> +               if (quote)
>> +                       uci_print_value(stdout, o->v.string);
>> +               else
>> +                       printf("%s", o->v.string);
>> +               printf("\n");
>>                 break;
>>         case UCI_TYPE_LIST:
>>                 uci_foreach_element(&o->v.list, e) {
>> -                       printf("%s%s", (sep ? delimiter : ""), e->name);
>> +                       printf("%s", (sep ? delimiter : ""));
>> +                       uci_print_value(stdout, e->name);
>>                         sep = true;
>>                 }
>
> While `config_foreach` works okay with this change.  I may note that
> this will break usages like the following
>
>                 network=$(uci get sockd.instance0.internal_network)
>                 status=$(ifstatus "$network")
>
> where option `internal_network` is of list type, thus the value will
> be quoted resulting a call to ifstatus like the following.
>
>                 ifstatus "'vpn'"
>
> which is invalid of course.  Anyway, I think `config_foreach` should
> be used in such cases.

It's `config_list_foreach`, sorry for the typo.


                 yousong

>
> Regards.
>
>                 yousong
>
>
>>                 printf("\n");
>> @@ -190,13 +208,13 @@ static void uci_show_value(struct uci_option *o)
>>         }
>>  }
diff mbox

Patch

diff --git a/cli.c b/cli.c
index 6fbbfe9..85a24d8 100644
--- a/cli.c
+++ b/cli.c
@@ -168,18 +168,36 @@  static void cli_perror(void)
 	uci_perror(ctx, appname);
 }
 
-static void uci_show_value(struct uci_option *o)
+static void uci_print_value(FILE *f, const char *v)
+{
+	fprintf(f, "'");
+	while (*v) {
+		if (*v != '\'')
+			fputc(*v, f);
+		else
+			fprintf(f, "'\\''");
+		v++;
+	}
+	fprintf(f, "'");
+}
+
+static void uci_show_value(struct uci_option *o, bool quote)
 {
 	struct uci_element *e;
 	bool sep = false;
 
 	switch(o->type) {
 	case UCI_TYPE_STRING:
-		printf("%s\n", o->v.string);
+		if (quote)
+			uci_print_value(stdout, o->v.string);
+		else
+			printf("%s", o->v.string);
+		printf("\n");
 		break;
 	case UCI_TYPE_LIST:
 		uci_foreach_element(&o->v.list, e) {
-			printf("%s%s", (sep ? delimiter : ""), e->name);
+			printf("%s", (sep ? delimiter : ""));
+			uci_print_value(stdout, e->name);
 			sep = true;
 		}
 		printf("\n");
@@ -190,13 +208,13 @@  static void uci_show_value(struct uci_option *o)
 	}
 }
 
-static void uci_show_option(struct uci_option *o)
+static void uci_show_option(struct uci_option *o, bool quote)
 {
 	printf("%s.%s.%s=",
 		o->section->package->e.name,
 		(cur_section_ref ? cur_section_ref : o->section->e.name),
 		o->e.name);
-	uci_show_value(o);
+	uci_show_value(o, quote);
 }
 
 static void uci_show_section(struct uci_section *s)
@@ -209,7 +227,7 @@  static void uci_show_section(struct uci_section *s)
 	sname = (cur_section_ref ? cur_section_ref : s->e.name);
 	printf("%s.%s=%s\n", cname, sname, s->type);
 	uci_foreach_element(&s->options, e) {
-		uci_show_option(uci_to_option(e));
+		uci_show_option(uci_to_option(e), true);
 	}
 }
 
@@ -251,8 +269,10 @@  static void uci_show_changes(struct uci_package *p)
 		printf("%s%s.%s", prefix, p->e.name, h->section);
 		if (e->name)
 			printf(".%s", e->name);
-		if (h->cmd != UCI_CMD_REMOVE)
-			printf("%s%s", op, h->value);
+		if (h->cmd != UCI_CMD_REMOVE) {
+			printf("%s", op);
+			uci_print_value(stdout, h->value);
+		}
 		printf("\n");
 	}
 }
@@ -298,7 +318,7 @@  static int package_cmd(int cmd, char *tuple)
 				uci_show_section(ptr.s);
 				break;
 			case UCI_TYPE_OPTION:
-				uci_show_option(ptr.o);
+				uci_show_option(ptr.o, true);
 				break;
 			default:
 				/* should not happen */
@@ -440,7 +460,7 @@  static int uci_do_section_cmd(int cmd, int argc, char **argv)
 			printf("%s\n", ptr.s->type);
 			break;
 		case UCI_TYPE_OPTION:
-			uci_show_value(ptr.o);
+			uci_show_value(ptr.o, false);
 			break;
 		default:
 			break;