-
Notifications
You must be signed in to change notification settings - Fork 1
/
cmd_clear.c
76 lines (57 loc) · 2.11 KB
/
cmd_clear.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
/*
* Copyright (c) 2011-2024 LEVAI Daniel
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "common.h"
#include "commands.h"
void
cmd_clear(const char *e_line, command *commands)
{
int count = 0, i = 0, j = 0;
char *cmd = NULL, *line = NULL, *inv = NULL;
line = strdup(e_line); malloc_check(line);
cmd = strtok(line, " ");
if (!cmd) {
puts(commands->usage);
free(line); line = NULL;
return;
}
cmd = strtok(NULL, " "); /* first optional parameter, the multiplier */
if (cmd) {
errno = 0;
count = strtoul((const char *)cmd, &inv, 10);
if (inv[0] != '\0' || errno != 0 || cmd[0] == '-') {
puts(commands->usage);
free(line); line = NULL;
return;
}
} else
count = 1;
free(line); line = NULL;
if (count == 0)
count++;
if (count > 10)
count = 10;
for (i=0; i<count; i++)
for (j=0; j<100; j++)
puts("");
} /* cmd_clear() */