Rev 3397 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 3265 | post | 1 | /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
| 2 | * All rights reserved. |
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| 3 | * |
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| 4 | * Redistribution and use in source and binary forms, with or without |
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| 5 | * modification, are permitted provided that the following conditions are met: |
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| 6 | * |
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| 7 | * Redistributions of source code must retain the above copyright notice, this |
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| 8 | * list of conditions and the following disclaimer. |
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| 9 | * |
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| 10 | * Redistributions in binary form must reproduce the above copyright notice, |
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| 11 | * this list of conditions and the following disclaimer in the documentation |
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| 12 | * and/or other materials provided with the distribution. |
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| 13 | * |
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| 14 | * Neither the name of the original program's authors nor the names of its |
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| 15 | * contributors may be used to endorse or promote products derived from this |
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| 16 | * software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 22 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 28 | * POSSIBILITY OF SUCH DAMAGE. |
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| 29 | */ |
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| 30 | |||
| 31 | #include <stdio.h> |
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| 32 | #include <stdlib.h> |
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| 33 | #include <unistd.h> |
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| 34 | #include <string.h> |
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| 3267 | post | 35 | #include <errno.h> |
| 3304 | post | 36 | |
| 3265 | post | 37 | #include "util.h" |
| 38 | #include "errors.h" |
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| 39 | #include "entry.h" |
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| 40 | #include "cmds.h" |
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| 41 | #include "cd.h" |
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| 42 | |||
| 43 | static char * cmdname = "cd"; |
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| 44 | |||
| 3492 | rimsky | 45 | void help_cmd_cd(unsigned int level) |
| 3265 | post | 46 | { |
| 47 | if (level == HELP_SHORT) { |
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| 48 | printf("`%s' changes the current working directory.\n", cmdname); |
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| 49 | } else { |
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| 50 | printf( |
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| 3278 | post | 51 | " %s <directory>\n" |
| 52 | " Change directory to <directory>, e.g `%s /sbin'\n", |
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| 53 | cmdname, cmdname); |
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| 3265 | post | 54 | } |
| 55 | |||
| 3492 | rimsky | 56 | return; |
| 3265 | post | 57 | } |
| 58 | |||
| 59 | /* This is a very rudamentary 'cd' command. It is not 'link smart' (yet) */ |
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| 60 | |||
| 3492 | rimsky | 61 | int cmd_cd(char **argv, cliuser_t *usr) |
| 3265 | post | 62 | { |
| 63 | int argc, rc = 0; |
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| 64 | |||
| 3376 | post | 65 | argc = cli_count_args(argv); |
| 3265 | post | 66 | |
| 67 | /* We don't yet play nice with whitespace, a getopt implementation should |
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| 68 | * protect "quoted\ destination" as a single argument. Its not our job to |
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| 69 | * look for && || or redirection as the tokenizer should have done that |
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| 70 | * (currently, it does not) */ |
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| 71 | |||
| 72 | if (argc > 2) { |
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| 73 | cli_error(CL_EFAIL, "Too many arguments to `%s'", cmdname); |
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| 74 | return CMD_FAILURE; |
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| 75 | } |
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| 76 | |||
| 3278 | post | 77 | if (argc < 2) { |
| 78 | printf("%s - no directory specified. Try `help %s extended'\n", |
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| 79 | cmdname, cmdname); |
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| 80 | return CMD_FAILURE; |
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| 81 | } |
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| 82 | |||
| 3265 | post | 83 | /* We have the correct # of arguments |
| 84 | * TODO: handle tidle (~) expansion? */ |
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| 85 | |||
| 3269 | post | 86 | rc = chdir(argv[1]); |
| 3265 | post | 87 | |
| 88 | if (rc == 0) { |
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| 3377 | post | 89 | cli_set_prompt(usr); |
| 3265 | post | 90 | return CMD_SUCCESS; |
| 91 | } else { |
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| 92 | switch (rc) { |
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| 93 | case ENOMEM: |
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| 94 | cli_error(CL_EFAIL, "Destination path too long"); |
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| 95 | break; |
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| 96 | case ENOENT: |
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| 97 | cli_error(CL_ENOENT, "Invalid directory `%s'", argv[1]); |
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| 98 | break; |
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| 99 | default: |
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| 100 | cli_error(CL_EFAIL, "Unable to change to `%s'", argv[1]); |
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| 101 | break; |
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| 102 | } |
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| 103 | } |
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| 104 | |||
| 105 | return CMD_FAILURE; |
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| 106 | } |