0,0 → 1,162 |
/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
* All rights reserved. |
* Copyright (c) 2008, Jiri Svoboda - All Rights Reserved |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions are met: |
* |
* Redistributions of source code must retain the above copyright notice, this |
* list of conditions and the following disclaimer. |
* |
* Redistributions in binary form must reproduce the above copyright notice, |
* this list of conditions and the following disclaimer in the documentation |
* and/or other materials provided with the distribution. |
* |
* Neither the name of the original program's authors nor the names of its |
* contributors may be used to endorse or promote products derived from this |
* software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
* POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include <io/stream.h> |
|
#include "config.h" |
#include "util.h" |
#include "scli.h" |
#include "input.h" |
#include "errors.h" |
#include "exec.h" |
|
extern volatile unsigned int cli_interactive; |
|
/* More than a macro than anything */ |
void cli_restricted(char *cmd) |
{ |
cli_verbose("%s is not available in %s mode\n", cmd, |
cli_interactive ? "interactive" : "non-interactive"); |
|
return; |
} |
|
/* Tokenizes input from console, sees if the first word is a built-in, if so |
* invokes the built-in entry point (a[0]) passing all arguments in a[] to |
* the handler */ |
int tok_input(cliuser_t *usr) |
{ |
char *cmd[WORD_MAX]; |
int n = 0, i = 0; |
int rc = 0; |
char *tmp; |
|
if (NULL == usr->line) |
return CL_EFAIL; |
|
tmp = cli_strdup(usr->line); |
|
/* Break up what the user typed, space delimited */ |
|
/* TODO: Protect things in quotes / ticks, expand wildcards */ |
cmd[n] = cli_strtok(tmp, " "); |
while (cmd[n] && n < WORD_MAX) { |
cmd[++n] = cli_strtok(NULL, " "); |
} |
|
/* We have rubbish */ |
if (NULL == cmd[0]) { |
rc = CL_ENOENT; |
goto finit; |
} |
|
/* Check what kind of command argv[0] might be, TODO: move this to |
* a function */ |
if ((i = (is_builtin(cmd[0]))) > -1) { |
if (builtin_is_restricted(i)) { |
rc = try_exec(cmd[0], cmd); |
if (rc) |
cli_restricted(cmd[0]); |
goto finit; |
} |
rc = run_builtin(i, cmd, usr); |
goto finit; |
} else if ((i = (is_module(cmd[0]))) > -1) { |
if (module_is_restricted(i)) { |
rc = try_exec(cmd[0], cmd); |
if (rc) |
cli_restricted(cmd[0]); |
goto finit; |
} |
rc = run_module(i, cmd); |
goto finit; |
} else { |
rc = try_exec(cmd[0], cmd); |
goto finit; |
} |
|
finit: |
if (NULL != usr->line) { |
free(usr->line); |
usr->line = (char *) NULL; |
} |
if (NULL != tmp) |
free(tmp); |
|
return rc; |
} |
|
/* Borrowed from Jiri Svoboda's 'cli' uspace app */ |
void read_line(char *buffer, int n) |
{ |
char c; |
int chars; |
|
chars = 0; |
while (chars < n - 1) { |
c = getchar(); |
if (c < 0) |
return; |
if (c == '\n') |
break; |
if (c == '\b') { |
if (chars > 0) { |
putchar('\b'); |
--chars; |
} |
continue; |
} |
putchar(c); |
buffer[chars++] = c; |
} |
putchar('\n'); |
buffer[chars] = '\0'; |
} |
|
void get_input(cliuser_t *usr) |
{ |
char line[INPUT_MAX]; |
size_t len = 0; |
|
printf("%s", usr->prompt); |
read_line(line, INPUT_MAX); |
len = strlen(line); |
/* Make sure we don't have rubbish or a C/R happy user */ |
if (len == 0 || line[0] == '\n') |
return; |
usr->line = cli_strdup(line); |
|
return; |
} |
|