static char *
read_next_line (void)
{
struct ui *ui = current_ui;
char *prompt_ptr, control_prompt[256];
int i = 0;
int from_tty = ui->instream == ui->stdin_stream;
if (control_level >= 254)
error (_("Control nesting too deep!"));
/* Set a prompt based on the nesting of the control commands. */
if (from_tty
|| (ui->instream == 0 && deprecated_readline_hook != NULL))
{
for (i = 0; i < control_level; i++)
control_prompt[i] = ' ';
control_prompt[i] = '>';
control_prompt[i + 1] = '\0';
prompt_ptr = (char *) &control_prompt[0];
}
else
prompt_ptr = NULL;
return command_line_input (prompt_ptr, from_tty, "commands");
}
static char *
gdbpy_readline_wrapper (FILE *sys_stdin, FILE *sys_stdout,
char *prompt)
{
int n;
char *p = NULL, *p_start, *p_end, *q;
volatile struct gdb_exception except;
TRY_CATCH (except, RETURN_MASK_ALL)
p = command_line_input (prompt, 0, "python");
/* Detect user interrupt (Ctrl-C). */
if (except.reason == RETURN_QUIT)
return NULL;
/* Handle errors by raising Python exceptions. */
if (except.reason < 0)
{
/* The thread state is nulled during gdbpy_readline_wrapper,
with the original value saved in the following undocumented
variable (see Python's Parser/myreadline.c and
Modules/readline.c). */
PyEval_RestoreThread (_PyOS_ReadlineTState);
gdbpy_convert_exception (except);
PyEval_SaveThread ();
return NULL;
}
/* Detect EOF (Ctrl-D). */
if (p == NULL)
{
q = PyMem_Malloc (1);
if (q != NULL)
q[0] = '\0';
return q;
}
n = strlen (p);
/* Copy the line to Python and return. */
q = PyMem_Malloc (n + 2);
if (q != NULL)
{
strncpy (q, p, n);
q[n] = '\n';
q[n + 1] = '\0';
}
return q;
}
static char *
read_next_line (void)
{
char *prompt_ptr, control_prompt[256];
int i = 0;
if (control_level >= 254)
error (_("Control nesting too deep!"));
/* Set a prompt based on the nesting of the control commands. */
if (instream == stdin || (instream == 0 && deprecated_readline_hook != NULL))
{
for (i = 0; i < control_level; i++)
control_prompt[i] = ' ';
control_prompt[i] = '>';
control_prompt[i + 1] = '\0';
prompt_ptr = (char *) &control_prompt[0];
}
else
prompt_ptr = NULL;
return command_line_input (prompt_ptr, instream == stdin, "commands");
}
/*
* CLI, returns results as CMD_xxx (such as CMD_EXIT)
* If argc is supplied, then this is one shot cli, ie run the command
*/
static int
do_cli(const struct cmd_tbl_entry *cmd_tbl, const char *prompt, int argc, char **argv)
{
/* Build up argc/argv */
const struct cmd_tbl_entry *ctp;
int cmd_argc;
char *cmd_argv[20];
char *input = NULL;
int rv, done;
int i;
char promptbuf[PROMPTBUFSIZE]; /* Was 1024, who needs that long a prompt? (the part before user input up to '>') */
static char nullstr[2]={0,0};
#ifdef HAVE_LIBREADLINE
//set the current command level for command completion
current_cmd_level = cmd_tbl;
#endif
rv = 0, done = 0;
snprintf(promptbuf, PROMPTBUFSIZE, "%s> ", prompt);
while (!done) {
char *inptr, *s;
if (argc == 0) {
/* Get Input */
if (input)
free(input);
input = command_line_input(promptbuf);
if (!input) {
if (instream == stdin)
printf("\n");
break;
}
/* Parse it */
inptr = input;
if (*inptr == '@') //printing comment
{
printf("%s\n", inptr);
continue;
}
if (*inptr == '#') //non-printing comment
{
continue;
}
cmd_argc = 0;
while ( (s = strtok(inptr, " \t")) != NULL ) {
cmd_argv[cmd_argc] = s;
inptr = NULL;
if (cmd_argc == (ARRAY_SIZE(cmd_argv)-1))
break;
cmd_argc++;
}
cmd_argv[cmd_argc] = nullstr;
} else {
/* Use supplied argc */
cmd_argc = argc;
for (i=0; i<=argc; i++)
cmd_argv[i] = argv[i];
}
if (cmd_argc != 0) {
ctp = cmd_tbl;
while (ctp->command) {
if (strcasecmp(ctp->command, cmd_argv[0]) == 0) {
if (ctp->sub_cmd_tbl) {
log_command(1, cmd_argv);
snprintf(promptbuf, PROMPTBUFSIZE,"%s/%s",
prompt, ctp->command);
/* Sub menu */
rv = do_cli(ctp->sub_cmd_tbl,
promptbuf,
cmd_argc-1,
&cmd_argv[1]);
#ifdef HAVE_LIBREADLINE
//went out of the sub-menu, so update the command level for command completion
current_cmd_level = cmd_tbl;
#endif
if (rv==CMD_EXIT) //allow exiting prog. from a submenu
done=1;
snprintf(promptbuf, PROMPTBUFSIZE, "%s> ", prompt);
} else {
/* Found command */
log_command(cmd_argc, cmd_argv);
rv = ctp->routine(cmd_argc, cmd_argv);
switch (rv) {
case CMD_USAGE:
printf("Usage: %s\n", ctp->usage);
break;
case CMD_EXIT:
rv = CMD_EXIT;
done = 1;
break;
case CMD_UP:
rv = CMD_UP;
done = 1;
break;
}
}
break;
}
if (!done)
ctp++;
}
if (ctp->command == NULL) {
printf("Huh? Try \"help\"\n");
}
if (argc) {
/* Single command */
done = 1;
break;
}
}
if (done)
break;
} //while !done
if (input)
free(input);
if (rv == CMD_UP)
return CMD_OK;
if (rv == CMD_EXIT) {
char *disco="disconnect";
if (global_logfp != NULL)
cmd_stoplog(0, NULL);
if (global_state > STATE_IDLE) {
do_cli(diag_cmd_table, "", 1, &disco); //XXX should be called recursively in case there are >1 active L3 conns...
}
rv=diag_end();
if (rv)
fprintf(stderr, FLFMT "diag_end failed !?\n", FL);
rv = CMD_EXIT;
}
return rv;
}
command_line_input is used instead. */
static char *
gdbpy_readline_wrapper (FILE *sys_stdin, FILE *sys_stdout,
#if PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 4
const char *prompt)
#else
char *prompt)
#endif
{
int n;
char *p = NULL, *q;
volatile struct gdb_exception except;
TRY_CATCH (except, RETURN_MASK_ALL)
p = command_line_input (prompt, 0, "python");
/* Detect user interrupt (Ctrl-C). */
if (except.reason == RETURN_QUIT)
return NULL;
/* Handle errors by raising Python exceptions. */
if (except.reason < 0)
{
/* The thread state is nulled during gdbpy_readline_wrapper,
with the original value saved in the following undocumented
variable (see Python's Parser/myreadline.c and
Modules/readline.c). */
PyEval_RestoreThread (_PyOS_ReadlineTState);
gdbpy_convert_exception (except);
PyEval_SaveThread ();
