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| Rev | Author | Line No. | Line |
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| 3294 | post | 1 | /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
| 2 | * All rights reserved. |
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| 3277 | post | 3 | * |
| 3294 | 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 | |
| 3294 | post | 31 | /* NOTE: |
| 32 | * This is a bit of an ugly hack, working around the absence of fstat / etc. |
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| 33 | * As more stuff is completed and exposed in libc, this will improve */ |
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| 3293 | post | 34 | |
| 3277 | post | 35 | #include <stdio.h> |
| 36 | #include <stdlib.h> |
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| 3293 | post | 37 | #include <unistd.h> |
| 38 | #include <dirent.h> |
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| 39 | #include <fcntl.h> |
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| 40 | #include <sys/types.h> |
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| 41 | #include <sys/stat.h> |
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| 42 | #include <string.h> |
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| 43 | |||
| 44 | #include "errors.h" |
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| 45 | #include "config.h" |
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| 46 | #include "util.h" |
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| 3277 | post | 47 | #include "entry.h" |
| 48 | #include "ls.h" |
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| 49 | #include "cmds.h" |
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| 50 | |||
| 51 | static char *cmdname = "ls"; |
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| 52 | |||
| 3293 | post | 53 | unsigned int ls_scope(const char *path) |
| 54 | { |
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| 55 | int fd; |
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| 56 | DIR *dirp; |
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| 57 | |||
| 58 | dirp = opendir(path); |
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| 59 | if (dirp) { |
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| 60 | closedir(dirp); |
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| 61 | return LS_DIR; |
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| 62 | } |
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| 63 | |||
| 64 | fd = open(path, O_RDONLY); |
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| 65 | if (fd > 0) { |
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| 66 | close(fd); |
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| 67 | return LS_FILE; |
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| 68 | } |
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| 69 | |||
| 70 | return LS_BOGUS; |
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| 71 | } |
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| 72 | |||
| 73 | void ls_print(const char *f) |
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| 74 | { |
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| 75 | if (ls_scope(f) == LS_FILE) |
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| 76 | printf("%-40s\n", f); |
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| 77 | else |
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| 78 | printf("%-40s <DIR>\n", f); |
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| 79 | return; |
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| 80 | } |
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| 81 | |||
| 3277 | post | 82 | /* Dispays help for ls in various levels */ |
| 83 | void * help_cmd_ls(unsigned int level) |
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| 84 | { |
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| 3294 | post | 85 | if (level == HELP_SHORT) { |
| 86 | printf("`%s' lists files and directories.\n", cmdname); |
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| 87 | } else { |
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| 88 | help_cmd_ls(HELP_SHORT); |
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| 89 | printf(" `%s' [path], if no path is given the current " |
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| 90 | "working directory is used.\n", cmdname); |
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| 91 | } |
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| 92 | |||
| 3293 | post | 93 | return CMD_VOID; |
| 3277 | post | 94 | } |
| 95 | |||
| 96 | int * cmd_ls(char **argv) |
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| 97 | { |
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| 98 | unsigned int argc; |
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| 3293 | post | 99 | unsigned int scope; |
| 100 | char *buff; |
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| 3277 | post | 101 | |
| 3293 | post | 102 | DIR *dirp; |
| 103 | struct dirent *dp; |
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| 104 | |||
| 3277 | post | 105 | /* Count the arguments */ |
| 106 | for (argc = 0; argv[argc] != NULL; argc ++); |
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| 107 | |||
| 3293 | post | 108 | if (argc > 2) { |
| 109 | printf("%s - Too many arguments. Try `help %s extended'\n", |
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| 110 | cmdname, cmdname); |
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| 111 | return CMD_FAILURE; |
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| 112 | } |
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| 3277 | post | 113 | |
| 3293 | post | 114 | buff = (char *) malloc(PATH_MAX); |
| 115 | if (NULL == buff) { |
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| 116 | cli_error(CL_ENOMEM, "%s: ", cmdname); |
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| 117 | return CMD_FAILURE; |
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| 3277 | post | 118 | } |
| 3293 | post | 119 | memset(buff, 0, sizeof(buff)); |
| 3277 | post | 120 | |
| 3293 | post | 121 | if (argc == 1) |
| 122 | getcwd(buff, PATH_MAX); |
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| 123 | else |
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| 124 | strncpy(buff, argv[1], PATH_MAX); |
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| 3277 | post | 125 | |
| 3293 | post | 126 | scope = ls_scope(buff); |
| 127 | |||
| 128 | switch (scope) { |
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| 129 | case LS_BOGUS: |
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| 130 | cli_error(CL_ENOENT, buff); |
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| 131 | free(buff); |
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| 132 | return CMD_FAILURE; |
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| 133 | case LS_FILE: |
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| 134 | ls_print(buff); |
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| 135 | break; |
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| 136 | case LS_DIR: |
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| 137 | dirp = opendir(buff); |
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| 138 | while ((dp = readdir(dirp))) |
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| 139 | ls_print(dp->d_name); |
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| 140 | closedir(dirp); |
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| 141 | break; |
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| 142 | } |
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| 143 | |||
| 144 | free(buff); |
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| 145 | |||
| 146 | return CMD_SUCCESS; |
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| 147 | |||
| 3277 | post | 148 | } |
| 149 |