#include <signal.h>
-#define MAX_HISTORY 15 /* Maximum length of the linked list for the command line history */
+static const int MAX_HISTORY = 15; /* Maximum length of the linked list for the command line history */
+
+enum {
+ ESC = 27,
+ DEL = 127,
+};
-#define ESC 27
-#define DEL 127
#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
static int history_counter = 0; /* Number of commands in history list */
static int reset_term = 0; /* Set to true if the terminal needs to be reset upon exit */
static int exithandler_set = 0; /* Set to true when atexit() has been called */
+
+
+/* Link into lash to reset context to 0
+ * on ^C and such */
+extern unsigned int shell_context;
+
struct history {
char *s;
* command-line when the user has typed more than the current width. This
* would allow the user to see a 'window' of what he has typed.
*/
-void
-cmdedit_setwidth(int w)
+static void cmdedit_setwidth(int w)
{
if (w > 20) {
cmdedit_termw = w;
cmdedit_scroll = w / 3;
} else {
- errorMsg("\n*** Error: minimum screen width is 21\n");
+ error_msg("\n*** Error: minimum screen width is 21\n");
}
}
+static void win_changed(int junk)
+{
+ struct winsize win = { 0, 0, 0, 0 };
+ ioctl(0, TIOCGWINSZ, &win);
+ if (win.ws_col > 0) {
+ cmdedit_setwidth( win.ws_col - 1);
+ }
+}
-void cmdedit_reset_term(void)
+
+static void cmdedit_reset_term(void)
{
if (reset_term)
/* sparc and other have broken termios support: use old termio handling. */
#endif
}
-void clean_up_and_die(int sig)
+static void clean_up_and_die(int sig)
{
cmdedit_reset_term();
- fprintf(stdout, "\n");
+ printf("\n");
if (sig!=SIGINT)
- exit(TRUE);
+ exit(EXIT_SUCCESS);
}
/* Go to HOME position */
-void input_home(int outputFd, int *cursor)
+static void input_home(int outputFd, int *cursor)
{
while (*cursor > 0) {
xwrite(outputFd, "\b", 1);
}
/* Go to END position */
-void input_end(int outputFd, int *cursor, int len)
+static void input_end(int outputFd, int *cursor, int len)
{
while (*cursor < len) {
xwrite(outputFd, "\033[C", 3);
}
/* Delete the char in back of the cursor */
-void input_backspace(char* command, int outputFd, int *cursor, int *len)
+static void input_backspace(char* command, int outputFd, int *cursor, int *len)
{
int j = 0;
}
/* Delete the char in front of the cursor */
-void input_delete(char* command, int outputFd, int cursor, int *len)
+static void input_delete(char* command, int outputFd, int cursor, int *len)
{
int j = 0;
}
/* Move forward one charactor */
-void input_forward(int outputFd, int *cursor, int len)
+static void input_forward(int outputFd, int *cursor, int len)
{
if (*cursor < len) {
xwrite(outputFd, "\033[C", 3);
}
/* Move back one charactor */
-void input_backward(int outputFd, int *cursor)
+static void input_backward(int outputFd, int *cursor)
{
if (*cursor > 0) {
xwrite(outputFd, "\033[D", 3);
#ifdef BB_FEATURE_SH_TAB_COMPLETION
-char** username_tab_completion(char* command, int *num_matches)
+static char** username_tab_completion(char* command, int *num_matches)
{
char **matches = (char **) NULL;
*num_matches=0;
}
#include <dirent.h>
-char** exe_n_cwd_tab_completion(char* command, int *num_matches)
+static char** exe_n_cwd_tab_completion(char* command, int *num_matches)
{
char *dirName;
char **matches;
return (matches);
}
-void input_tab(char* command, char* prompt, int outputFd, int *cursor, int *len, int lastWasTab)
+static void input_tab(char* command, char* prompt, int outputFd, int *cursor, int *len, int lastWasTab)
{
/* Do TAB completion */
static int num_matches=0;
}
#endif
-void get_previous_history(struct history **hp, char* command)
+static void get_previous_history(struct history **hp, char* command)
{
if ((*hp)->s)
free((*hp)->s);
*hp = (*hp)->p;
}
-void get_next_history(struct history **hp, char* command)
+static void get_next_history(struct history **hp, char* command)
{
if ((*hp)->s)
free((*hp)->s);
memset(command, 0, BUFSIZ);
+ /* Print out the command prompt */
+ xwrite(outputFd, prompt, strlen(prompt));
+
while (1) {
if ((ret = read(inputFd, &c, 1)) < 1)
input_backward(outputFd, &cursor);
break;
case 3:
- /* Control-c -- leave the current line,
- * and start over on the next line */
+ /* Control-c -- stop gathering input */
+
+ /* Link into lash to reset context to 0 on ^C and such */
+ shell_context = 0;
/* Go to the next line */
xwrite(outputFd, "\n", 1);
+#if 0
/* Rewrite the prompt */
xwrite(outputFd, prompt, strlen(prompt));
/* Reset the command string */
memset(command, 0, BUFSIZ);
len = cursor = 0;
+#endif
+ return;
- break;
case 4:
/* Control-d -- Delete one character, or exit
* if the len=0 and no chars to delete */
extern void cmdedit_init(void)
{
+ win_changed(0);
+ signal(SIGWINCH, win_changed);
+
if(exithandler_set == 0) {
atexit(cmdedit_reset_term); /* be sure to do this only once */
exithandler_set = 1;
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
signal(SIGTERM, SIG_DFL);
+ signal(SIGWINCH, SIG_DFL);
}