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| Rev | Author | Line No. | Line |
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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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| 51 | void * help_cmd_touch(unsigned int level) |
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| 52 | { |
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| 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 | |||
| 61 | return CMD_VOID; |
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| 3277 | post | 62 | } |
| 63 | |||
| 64 | /* Main entry point for touch, accepts an array of arguments */ |
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| 65 | int * cmd_touch(char **argv) |
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| 66 | { |
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| 67 | unsigned int argc; |
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| 3295 | post | 68 | int fd; |
| 69 | char *buff = NULL; |
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| 3277 | post | 70 | |
| 3295 | post | 71 | DIR *dirp; |
| 72 | |||
| 3277 | post | 73 | /* Count the arguments */ |
| 74 | for (argc = 0; argv[argc] != NULL; argc ++); |
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| 75 | |||
| 3295 | post | 76 | if (argc != 2) { |
| 77 | printf("%s - incorrect number of arguments. Try `help %s extended'\n", |
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| 78 | cmdname, cmdname); |
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| 79 | return CMD_FAILURE; |
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| 80 | } |
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| 3277 | post | 81 | |
| 3295 | post | 82 | buff = cli_strdup(argv[1]); |
| 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 | free(buff); |
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| 88 | return CMD_FAILURE; |
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| 3277 | post | 89 | } |
| 90 | |||
| 3295 | post | 91 | fd = open(buff, O_RDWR | O_CREAT); |
| 92 | if (fd < 0) { |
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| 93 | cli_error(CL_EFAIL, "Could not update / create %s ", buff); |
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| 94 | free(buff); |
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| 95 | return CMD_FAILURE; |
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| 96 | } |
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| 3277 | post | 97 | |
| 3295 | post | 98 | close(fd); |
| 99 | free(buff); |
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| 100 | |||
| 101 | return CMD_SUCCESS; |
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| 3277 | post | 102 | } |
| 103 |