Rev 3269 | Go to most recent revision | Details | Last modification | View Log | RSS feed
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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 <string.h> |
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| 34 | #include <unistd.h> |
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| 35 | #include "config.h" |
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| 36 | #include "scli.h" |
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| 37 | #include "input.h" |
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| 38 | #include "util.h" |
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| 39 | #include "errors.h" |
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| 40 | #include "cmds/cmds.h" |
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| 41 | |||
| 42 | #ifndef HELENOS |
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| 43 | #include <linux/limits.h> |
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| 44 | #endif |
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| 45 | |||
| 46 | /* See scli.h */ |
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| 47 | static cliuser_t usr; |
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| 48 | |||
| 49 | /* Modified by the 'quit' module, which is compiled before this */ |
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| 50 | extern unsigned int cli_quit; |
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| 51 | |||
| 52 | /* Globals that are modified during start-up that modules/builtins should |
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| 53 | * be aware of. */ |
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| 54 | volatile unsigned int cli_interactive = 1; |
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| 55 | volatile unsigned int cli_verbocity = 1; |
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| 56 | |||
| 57 | /* The official name of this program |
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| 58 | * (change to your liking in configure.ac and re-run autoconf) */ |
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| 59 | const char *progname = PACKAGE_NAME; |
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| 60 | |||
| 61 | /* (re)allocates memory to store the current working directory, gets |
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| 62 | * and updates the current working directory, formats the prompt string */ |
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| 63 | int cli_set_prompt(cliuser_t *usr) |
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| 64 | { |
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| 65 | usr->prompt = (char *) realloc(usr->prompt, PATH_MAX); |
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| 66 | if (NULL == usr->prompt) { |
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| 67 | cli_error(CL_ENOMEM, "Can not allocate prompt"); |
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| 68 | return 1; |
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| 69 | } |
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| 70 | memset(usr->prompt, 0, sizeof(usr->prompt)); |
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| 71 | |||
| 72 | usr->cwd = (char *) realloc(usr->cwd, PATH_MAX); |
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| 73 | if (NULL == usr->cwd) { |
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| 74 | cli_error(CL_ENOMEM, "Can not allocate cwd"); |
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| 75 | return 1; |
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| 76 | } |
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| 77 | memset(usr->cwd, 0, sizeof(usr->cwd)); |
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| 78 | |||
| 79 | usr->cwd = getcwd(usr->cwd, PATH_MAX - 1); |
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| 80 | if (NULL == usr->cwd) |
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| 81 | snprintf(usr->cwd, PATH_MAX, "(unknown)"); |
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| 82 | |||
| 83 | if (usr->lasterr != 0) |
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| 84 | snprintf(usr->prompt, |
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| 85 | PATH_MAX, |
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| 86 | "[%lld] %s # ", |
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| 87 | usr->lasterr, usr->cwd); |
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| 88 | else |
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| 89 | snprintf(usr->prompt, |
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| 90 | PATH_MAX, |
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| 91 | "%s # ", |
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| 92 | usr->cwd); |
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| 93 | |||
| 94 | return 0; |
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| 95 | } |
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| 96 | |||
| 97 | int cli_init(cliuser_t *usr) |
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| 98 | { |
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| 99 | usr->line = (char *) NULL; |
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| 100 | usr->name = "root"; |
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| 101 | usr->home = "/"; |
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| 102 | usr->cwd = (char *) NULL; |
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| 103 | usr->prompt = (char *) NULL; |
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| 104 | chdir(usr->home); |
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| 105 | usr->lasterr = 0; |
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| 106 | return (int) cli_set_prompt(usr); |
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| 107 | } |
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| 108 | |||
| 109 | /* Destructor */ |
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| 110 | void cli_finit(cliuser_t *usr) |
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| 111 | { |
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| 112 | if (NULL != usr->line) |
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| 113 | free(usr->line); |
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| 114 | if (NULL != usr->prompt) |
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| 115 | free(usr->prompt); |
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| 116 | if (NULL != usr->cwd) |
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| 117 | free(usr->cwd); |
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| 118 | } |
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| 119 | |||
| 120 | int main(int argc, char *argv[]) |
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| 121 | { |
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| 122 | int ret = 0; |
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| 123 | int i = 0; |
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| 124 | |||
| 125 | if (cli_init(&usr)) |
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| 126 | exit(EXIT_FAILURE); |
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| 127 | |||
| 128 | while (!cli_quit) { |
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| 129 | cli_set_prompt(&usr); |
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| 130 | get_input(&usr); |
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| 131 | if (NULL != usr.line) { |
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| 132 | ret = tok_input(&usr); |
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| 133 | usr.lasterr = ret; |
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| 134 | } |
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| 135 | i++; |
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| 136 | } |
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| 137 | goto finit; |
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| 138 | |||
| 139 | finit: |
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| 140 | cli_finit(&usr); |
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| 141 | return ret; |
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| 142 | } |