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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/****************************************************************************
**
** File: parse_cl.c
**
** Author: Mike Borella
**
** Comments: Command line parsing
**
*****************************************************************************/
#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
/*----------------------------------------------------------------------------
*
* parse_cl()
*
*----------------------------------------------------------------------------
*/
void parse_cl(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
extern int cnt;
extern int p_flag;
extern char *dev;
extern char *pcap_cmd;
char c;
void ftlerr(char *, ...);
char *copy_argv(char **);
while ((c=getopt(argc, argv, "c:i:p")) != EOF)
{
switch(c)
{
case 'c':
cnt = atoi(optarg);
break;
case 'i':
dev = optarg;
break;
case 'p':
p_flag++;
break;
default:
ftlerr("Unknown option -%c\n", c);
/* NOT REACHED */
}
} /* while */
/*
* Copy filter command into a string
*/
pcap_cmd = copy_argv(&argv[optind]);
}
/*----------------------------------------------------------------------------
*
* copy_argv()
*
* Copy arg vector into a new buffer, concatenating arguments with spaces.
* Lifted from tcpdump.
*
*----------------------------------------------------------------------------
*/
char *copy_argv(char **argv)
{
char **p;
u_int len = 0;
char *buf;
char *src, *dst;
void ftlerr(char *, ...);
p = argv;
if (*p == 0) return 0;
while (*p)
len += strlen(*p++) + 1;
buf = (char *) malloc (len);
if (buf == NULL) ftlerr("copy_argv: malloc() failed");
p = argv;
dst = buf;
while ((src = *p++) != NULL)
{
while ((*dst++ = *src++) != '\0');
dst[-1] = ' ';
}
dst[-1] = '\0';
return buf;
}
|
