diff options
Diffstat (limited to 'src/hci/tui/settings_ui.c')
| -rw-r--r-- | src/hci/tui/settings_ui.c | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/src/hci/tui/settings_ui.c b/src/hci/tui/settings_ui.c index be421cc..95cbd77 100644 --- a/src/hci/tui/settings_ui.c +++ b/src/hci/tui/settings_ui.c @@ -25,6 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <stdio.h> #include <stdarg.h> +#include <stdlib.h> #include <unistd.h> #include <string.h> #include <curses.h> @@ -58,12 +59,15 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); char start[0]; \ char pad1[1]; \ union { \ - char settings[ cols - 1 - 1 - 1 - 1 ]; \ + struct { \ + char name[ cols - 1 - 1 - 1 - 1 - 1 ]; \ + char pad2[1]; \ + } __attribute__ (( packed )) settings; \ struct { \ char name[15]; \ char pad2[1]; \ char value[ cols - 1 - 15 - 1 - 1 - 1 - 1 ]; \ - } setting; \ + } __attribute__ (( packed )) setting; \ } u; \ char pad3[1]; \ char nul; \ @@ -92,8 +96,8 @@ struct settings_ui_row { struct edit_box editbox; /** Editing in progress flag */ int editing; - /** Buffer for setting's value */ - char value[256]; /* enough size for a DHCP string */ + /** Dynamically allocated buffer for setting's value */ + char *buf; }; /** A settings user interface */ @@ -121,24 +125,22 @@ static unsigned int select_setting_row ( struct settings_ui *ui, struct setting *previous = NULL; unsigned int count = 0; + /* Free any previous setting value */ + free ( ui->row.buf ); + ui->row.buf = NULL; + /* Initialise structure */ memset ( &ui->row, 0, sizeof ( ui->row ) ); ui->row.row = ( SETTINGS_LIST_ROW + index - ui->scroll.first ); /* Include parent settings block, if applicable */ - if ( ui->settings->parent && ( count++ == index ) ) { + if ( ui->settings->parent && ( count++ == index ) ) ui->row.settings = ui->settings->parent; - snprintf ( ui->row.value, sizeof ( ui->row.value ), - "../" ); - } /* Include any child settings blocks, if applicable */ list_for_each_entry ( settings, &ui->settings->children, siblings ) { - if ( count++ == index ) { + if ( count++ == index ) ui->row.settings = settings; - snprintf ( ui->row.value, sizeof ( ui->row.value ), - "%s/", settings->name ); - } } /* Include any applicable settings */ @@ -155,15 +157,14 @@ static unsigned int select_setting_row ( struct settings_ui *ui, /* Read current setting value and origin */ if ( count++ == index ) { - fetchf_setting ( ui->settings, setting, &ui->row.origin, - &ui->row.setting, ui->row.value, - sizeof ( ui->row.value ) ); + fetchf_setting_copy ( ui->settings, setting, + &ui->row.origin, + &ui->row.setting, &ui->row.buf ); } } /* Initialise edit box */ - init_editbox ( &ui->row.editbox, ui->row.value, - sizeof ( ui->row.value ), NULL, ui->row.row, + init_editbox ( &ui->row.editbox, &ui->row.buf, NULL, ui->row.row, ( SETTINGS_LIST_COL + offsetof ( typeof ( *text ), u.setting.value ) ), sizeof ( text->u.setting.value ), 0 ); @@ -197,7 +198,7 @@ static size_t string_copy ( char *dest, const char *src, size_t len ) { static void draw_setting_row ( struct settings_ui *ui ) { SETTING_ROW_TEXT ( COLS ) text; unsigned int curs_offset; - char *value; + const char *value; /* Fill row with spaces */ memset ( &text, ' ', sizeof ( text ) ); @@ -207,10 +208,12 @@ static void draw_setting_row ( struct settings_ui *ui ) { if ( ui->row.settings ) { /* Construct space-padded name */ - curs_offset = ( offsetof ( typeof ( text ), u.settings ) + - string_copy ( text.u.settings, - ui->row.value, - sizeof ( text.u.settings ) ) ); + value = ( ( ui->row.settings == ui->settings->parent ) ? + ".." : ui->row.settings->name ); + curs_offset = string_copy ( text.u.settings.name, value, + sizeof ( text.u.settings.name ) ); + text.u.settings.name[curs_offset] = '/'; + curs_offset += offsetof ( typeof ( text ), u.settings ); } else { @@ -221,12 +224,12 @@ static void draw_setting_row ( struct settings_ui *ui ) { sizeof ( text.u.setting.name ) ); /* Construct space-padded value */ - value = ui->row.value; - if ( ! *value ) + value = ui->row.buf; + if ( ! ( value && value[0] ) ) value = "<not specified>"; - curs_offset = ( offsetof ( typeof ( text ), u.setting.value ) + - string_copy ( text.u.setting.value, value, - sizeof ( text.u.setting.value ))); + curs_offset = string_copy ( text.u.setting.value, value, + sizeof ( text.u.setting.value ) ); + curs_offset += offsetof ( typeof ( text ), u.setting.value ); } /* Print row */ @@ -257,7 +260,7 @@ static int edit_setting ( struct settings_ui *ui, int key ) { */ static int save_setting ( struct settings_ui *ui ) { assert ( ui->row.setting.name != NULL ); - return storef_setting ( ui->settings, &ui->row.setting, ui->row.value ); + return storef_setting ( ui->settings, &ui->row.setting, ui->row.buf ); } /** @@ -527,6 +530,7 @@ static int main_loop ( struct settings *settings ) { redraw = 1; break; case CTRL_X: + select_setting_row ( &ui, -1U ); return 0; case CR: case LF: |