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-rw-r--r--src/core/settings.c17
-rw-r--r--src/hci/commands/nvo_cmd.c2
-rw-r--r--src/hci/tui/settings_ui.c2
-rw-r--r--src/include/gpxe/settings.h4
4 files changed, 11 insertions, 14 deletions
diff --git a/src/core/settings.c b/src/core/settings.c
index 42029fdcd..258fc1c7a 100644
--- a/src/core/settings.c
+++ b/src/core/settings.c
@@ -123,7 +123,7 @@ find_or_build_config_setting ( const char *name,
* @v name Configuration setting name
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
int show_named_setting ( struct config_context *context, const char *name,
char *buf, size_t len ) {
@@ -180,7 +180,7 @@ int set_setting ( struct config_context *context,
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
static int show_string ( struct config_context *context,
struct config_setting *setting,
@@ -190,8 +190,7 @@ static int show_string ( struct config_context *context,
option = find_dhcp_option ( context->options, setting->tag );
if ( ! option )
return -ENODATA;
- dhcp_snprintf ( buf, len, option );
- return 0;
+ return dhcp_snprintf ( buf, len, option );
}
/**
@@ -229,7 +228,7 @@ struct config_setting_type config_setting_type_string __config_setting_type = {
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
static int show_ipv4 ( struct config_context *context,
struct config_setting *setting,
@@ -241,8 +240,7 @@ static int show_ipv4 ( struct config_context *context,
if ( ! option )
return -ENODATA;
dhcp_ipv4_option ( option, &ipv4 );
- snprintf ( buf, len, inet_ntoa ( ipv4 ) );
- return 0;
+ return snprintf ( buf, len, inet_ntoa ( ipv4 ) );
}
/**
@@ -283,7 +281,7 @@ struct config_setting_type config_setting_type_ipv4 __config_setting_type = {
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
static int show_int ( struct config_context *context,
struct config_setting *setting,
@@ -295,8 +293,7 @@ static int show_int ( struct config_context *context,
if ( ! option )
return -ENODATA;
num = dhcp_num_option ( option );
- snprintf ( buf, len, "%ld", num );
- return 0;
+ return snprintf ( buf, len, "%ld", num );
}
/**
diff --git a/src/hci/commands/nvo_cmd.c b/src/hci/commands/nvo_cmd.c
index 4392787b0..4c453c77f 100644
--- a/src/hci/commands/nvo_cmd.c
+++ b/src/hci/commands/nvo_cmd.c
@@ -28,7 +28,7 @@ static int show_exec ( int argc, char **argv ) {
dummy_context.options = ugly_nvo_hack->options;
if ( ( rc = show_named_setting ( &dummy_context, argv[1], buf,
- sizeof ( buf ) ) ) != 0 ) {
+ sizeof ( buf ) ) ) < 0 ) {
printf ( "Could not find \"%s\": %s\n",
argv[1], strerror ( -rc ) );
return 1;
diff --git a/src/hci/tui/settings_ui.c b/src/hci/tui/settings_ui.c
index 336af4e91..c6261c77f 100644
--- a/src/hci/tui/settings_ui.c
+++ b/src/hci/tui/settings_ui.c
@@ -118,7 +118,7 @@ static void load_setting ( struct setting_widget *widget ) {
/* Read current setting value */
if ( show_setting ( widget->context, widget->setting,
- widget->value, sizeof ( widget->value ) ) != 0 ) {
+ widget->value, sizeof ( widget->value ) ) < 0 ) {
widget->value[0] = '\0';
}
diff --git a/src/include/gpxe/settings.h b/src/include/gpxe/settings.h
index f30bbfbc7..1b9c059be 100644
--- a/src/include/gpxe/settings.h
+++ b/src/include/gpxe/settings.h
@@ -48,7 +48,7 @@ struct config_setting_type {
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
int ( * show ) ( struct config_context *context,
struct config_setting *setting,
@@ -108,7 +108,7 @@ struct config_setting {
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
- * @ret rc Return status code
+ * @ret len Length of formatted value, or negative error
*/
static inline int show_setting ( struct config_context *context,
struct config_setting *setting,