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3295 | post | 1 | /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com> |
2 | * All rights reserved. |
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3277 | post | 3 | * |
3295 | 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 | |
3295 | post | 31 | /* TODO: Options that people would expect, such as not creating the file if |
32 | * it doesn't exist, specifying the access time, etc */ |
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33 | |||
3277 | post | 34 | #include <stdio.h> |
35 | #include <stdlib.h> |
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3295 | post | 36 | #include <unistd.h> |
37 | #include <fcntl.h> |
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38 | #include <dirent.h> |
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39 | #include <sys/types.h> |
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40 | |||
41 | #include "config.h" |
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42 | #include "errors.h" |
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43 | #include "util.h" |
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3277 | post | 44 | #include "entry.h" |
45 | #include "touch.h" |
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46 | #include "cmds.h" |
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47 | |||
48 | static char *cmdname = "touch"; |
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49 | |||
50 | /* Dispays help for touch in various levels */ |
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3413 | post | 51 | void help_cmd_touch(unsigned int level) |
3277 | post | 52 | { |
3295 | post | 53 | if (level == HELP_SHORT) { |
54 | printf("`%s' updates access times for files\n", cmdname); |
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55 | } else { |
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56 | help_cmd_touch(HELP_SHORT); |
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57 | printf(" `%s' <file>, if the file does not exist it will be " |
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58 | "created\n", cmdname); |
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59 | } |
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60 | |||
3413 | post | 61 | return; |
3277 | post | 62 | } |
63 | |||
64 | /* Main entry point for touch, accepts an array of arguments */ |
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3413 | post | 65 | int cmd_touch(char **argv) |
3277 | post | 66 | { |
3297 | post | 67 | unsigned int argc, i = 0, ret = 0; |
3295 | post | 68 | int fd; |
69 | char *buff = NULL; |
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3277 | post | 70 | |
3295 | post | 71 | DIR *dirp; |
72 | |||
3376 | post | 73 | argc = cli_count_args(argv); |
3277 | post | 74 | |
3297 | post | 75 | if (argc == 1) { |
3295 | post | 76 | printf("%s - incorrect number of arguments. Try `help %s extended'\n", |
77 | cmdname, cmdname); |
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78 | return CMD_FAILURE; |
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79 | } |
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3277 | post | 80 | |
3297 | post | 81 | for (i = 1; i < argc; i ++) { |
82 | buff = cli_strdup(argv[i]); |
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83 | dirp = opendir(buff); |
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84 | if (dirp) { |
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85 | cli_error(CL_ENOTSUP, "%s is a directory", buff); |
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86 | closedir(dirp); |
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87 | ret ++; |
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88 | continue; |
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89 | } |
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90 | |||
91 | fd = open(buff, O_RDWR | O_CREAT); |
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92 | if (fd < 0) { |
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93 | cli_error(CL_EFAIL, "Could not update / create %s ", buff); |
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94 | ret ++; |
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95 | continue; |
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96 | } else |
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97 | close(fd); |
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98 | |||
3295 | post | 99 | free(buff); |
3277 | post | 100 | } |
101 | |||
3297 | post | 102 | if (ret) |
3295 | post | 103 | return CMD_FAILURE; |
3297 | post | 104 | else |
105 | return CMD_SUCCESS; |
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3277 | post | 106 | } |
107 |