| 1 | /*
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| 2 | * Copyright (c) 2008 Tim Post
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #include <stdio.h>
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| 30 | #include <str.h>
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| 31 | #include <stdarg.h>
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| 32 | #include <stdlib.h>
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| 33 | #include <vfs/vfs.h>
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| 34 | #include <abi/errno.h>
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| 35 |
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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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| 39 |
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| 40 | extern volatile int cli_errno;
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| 41 |
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| 42 | /* Count and return the # of elements in an array */
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| 43 | unsigned int cli_count_args(char **args)
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| 44 | {
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| 45 | unsigned int i;
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| 46 |
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| 47 | for (i=0; args[i] != NULL; i++);
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| 48 | return i;
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| 49 | }
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| 50 |
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| 51 | /* (re)allocates memory to store the current working directory, gets
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| 52 | * and updates the current working directory, formats the prompt
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| 53 | * string */
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| 54 | unsigned int cli_set_prompt(cliuser_t *usr)
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| 55 | {
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| 56 | usr->cwd = (char *) realloc(usr->cwd, PATH_MAX);
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| 57 | if (NULL == usr->cwd) {
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| 58 | cli_error(CL_ENOMEM, "Can not allocate cwd");
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| 59 | cli_errno = CL_ENOMEM;
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| 60 | return 1;
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| 61 | }
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| 62 | if (vfs_cwd_get(usr->cwd, PATH_MAX) != EOK)
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| 63 | snprintf(usr->cwd, PATH_MAX, "(unknown)");
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| 64 |
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| 65 | if (usr->prompt)
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| 66 | free(usr->prompt);
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| 67 | asprintf(&usr->prompt, "%s # ", usr->cwd);
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| 68 |
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| 69 | return 0;
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| 70 | }
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