| 0,0 → 1,111 |
|---|
| /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
| * 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 <unistd.h> |
| #include <string.h> |
| #include <sys/errno.h> |
| #include "util.h" |
| #include "errors.h" |
| #include "entry.h" |
| #include "cmds.h" |
| #include "cd.h" |
| |
| static char * cmdname = "cd"; |
| |
| void * help_cmd_cd(unsigned int level) |
| { |
| if (level == HELP_SHORT) { |
| printf("`%s' changes the current working directory.\n", cmdname); |
| } else { |
| printf( |
| " %s [-L|-P] [dir]\n" |
| " Your home directory is the default if [dir] is not provided.\n" |
| " The -P option specifies to always use the physical directory\n" |
| " structure instead of following symbolic links. The -L option\n" |
| " is the exact reverse of -P, symbolic links will be forced.\n" |
| " Note: -L|-P are not yet implemented\n", cmdname); |
| } |
| |
| return CMD_VOID; |
| } |
| |
| /* This is a very rudamentary 'cd' command. It is not 'link smart' (yet) */ |
| |
| int * cmd_cd(char *argv[], cliuser_t *usr) |
| { |
| int argc, rc = 0; |
| char *dest = NULL; |
| |
| for (argc = 0; argv[argc] != NULL; argc ++); |
| |
| /* Someone just typed 'cd' , send them home */ |
| |
| if (argc < 2) |
| dest = cli_strdup(usr->home); |
| |
| /* We don't yet play nice with whitespace, a getopt implementation should |
| * protect "quoted\ destination" as a single argument. Its not our job to |
| * look for && || or redirection as the tokenizer should have done that |
| * (currently, it does not) */ |
| |
| if (argc > 2) { |
| cli_error(CL_EFAIL, "Too many arguments to `%s'", cmdname); |
| return CMD_FAILURE; |
| } |
| |
| /* We have the correct # of arguments |
| * TODO: handle tidle (~) expansion? */ |
| |
| if (argc == 2) |
| dest = cli_strdup(argv[1]); |
| |
| rc = chdir(dest); |
| if (rc == 0) { |
| free(dest); |
| return CMD_SUCCESS; |
| } else { |
| free(dest); |
| switch (rc) { |
| case ENOMEM: |
| cli_error(CL_EFAIL, "Destination path too long"); |
| break; |
| case ENOENT: |
| cli_error(CL_ENOENT, "Invalid directory `%s'", argv[1]); |
| break; |
| default: |
| cli_error(CL_EFAIL, "Unable to change to `%s'", argv[1]); |
| break; |
| } |
| } |
| |
| return CMD_FAILURE; |
| } |