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| Rev | Author | Line No. | Line |
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| 3296 | post | 1 | /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
| 2 | * All rights reserved. |
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| 3277 | post | 3 | * |
| 3296 | post | 4 | * Redistribution and use in source and binary forms, with or without |
| 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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| 3277 | post | 30 | |
| 31 | #include <stdio.h> |
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| 32 | #include <stdlib.h> |
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| 3296 | post | 33 | #include <unistd.h> |
| 34 | #include <fcntl.h> |
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| 35 | #include <dirent.h> |
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| 36 | #include "config.h" |
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| 37 | #include "errors.h" |
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| 38 | #include "util.h" |
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| 3277 | post | 39 | #include "entry.h" |
| 40 | #include "rm.h" |
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| 41 | #include "cmds.h" |
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| 42 | |||
| 43 | static char *cmdname = "rm"; |
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| 44 | |||
| 3296 | post | 45 | unsigned int rm_recursive(const char *path) |
| 46 | { |
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| 47 | cli_error(CL_ENOTSUP, "I do not yet remove directories"); |
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| 48 | return 1; |
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| 49 | } |
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| 50 | |||
| 51 | unsigned int rm_single(const char *path) |
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| 52 | { |
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| 53 | if (unlink(path)) { |
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| 54 | cli_error(CL_EFAIL, "rm: could not remove file %s", path); |
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| 55 | return 1; |
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| 56 | } |
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| 57 | return 0; |
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| 58 | } |
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| 59 | |||
| 60 | unsigned int rm_scope(const char *path) |
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| 61 | { |
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| 62 | int fd; |
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| 63 | DIR *dirp; |
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| 64 | |||
| 65 | dirp = opendir(path); |
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| 66 | if (dirp) { |
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| 67 | closedir(dirp); |
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| 68 | return RM_DIR; |
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| 69 | } |
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| 70 | |||
| 71 | fd = open(path, O_RDONLY); |
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| 72 | if (fd > 0) { |
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| 73 | close(fd); |
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| 74 | return RM_FILE; |
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| 75 | } |
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| 76 | |||
| 77 | return RM_BOGUS; |
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| 78 | } |
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| 79 | |||
| 3277 | post | 80 | /* Dispays help for rm in various levels */ |
| 81 | void * help_cmd_rm(unsigned int level) |
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| 82 | { |
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| 3296 | post | 83 | if (level == HELP_SHORT) { |
| 84 | printf("`%s' removes files and directories.\n", cmdname); |
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| 85 | } else { |
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| 86 | help_cmd_rm(HELP_SHORT); |
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| 87 | printf(" %s <path> If <path> is a directory, all files and " |
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| 88 | "directories\n within will be unconditionally removed.\n", |
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| 89 | cmdname); |
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| 90 | } |
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| 91 | return CMD_VOID; |
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| 3277 | post | 92 | } |
| 93 | |||
| 94 | /* Main entry point for rm, accepts an array of arguments */ |
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| 95 | int * cmd_rm(char **argv) |
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| 96 | { |
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| 97 | unsigned int argc; |
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| 3296 | post | 98 | unsigned int i, scope, ret = 0; |
| 99 | char *buff; |
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| 3277 | post | 100 | |
| 101 | /* Count the arguments */ |
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| 102 | for (argc = 0; argv[argc] != NULL; argc ++); |
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| 103 | |||
| 104 | if (argc < 2) { |
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| 3296 | post | 105 | cli_error(CL_EFAIL, |
| 106 | "%s - insufficient arguments. Try `help %s extended'", |
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| 107 | cmdname, cmdname); |
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| 108 | return CMD_FAILURE; |
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| 3277 | post | 109 | } |
| 110 | |||
| 3296 | post | 111 | for (i = 1; i < argc; i++) { |
| 112 | buff = cli_strdup(argv[i]); |
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| 113 | scope = rm_scope(buff); |
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| 114 | switch (scope) { |
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| 115 | case RM_BOGUS: |
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| 116 | cli_error(CL_ENOENT, "Can not unlink %s", buff); |
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| 117 | break; |
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| 118 | case RM_FILE: |
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| 119 | ret += rm_single(buff); |
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| 120 | break; |
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| 121 | case RM_DIR: |
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| 122 | ret += rm_recursive(buff); |
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| 123 | break; |
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| 124 | } |
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| 125 | free(buff); |
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| 126 | } |
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| 3277 | post | 127 | |
| 3296 | post | 128 | if (ret) |
| 129 | return CMD_FAILURE; |
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| 130 | else |
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| 131 | return CMD_SUCCESS; |
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| 3277 | post | 132 | } |
| 133 |