| 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; |
| } |
| |