blob: c19591bb9f5e3563cd989664161b0afa9c163d26 (
plain)
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
|
/**************************************************************************
MISC Support Routines
**************************************************************************/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdlib.h>
#include <ctype.h>
#include <byteswap.h>
#include <gpxe/in.h>
#include <gpxe/timer.h>
/**************************************************************************
INET_ATON - Convert an ascii x.x.x.x to binary form
**************************************************************************/
int inet_aton ( const char *cp, struct in_addr *inp ) {
const char *p = cp;
const char *digits_start;
unsigned long ip = 0;
unsigned long val;
int j;
for(j = 0; j <= 3; j++) {
digits_start = p;
val = strtoul(p, ( char ** ) &p, 10);
if ((p == digits_start) || (val > 255)) return 0;
if ( ( j < 3 ) && ( *(p++) != '.' ) ) return 0;
ip = (ip << 8) | val;
}
if ( *p == '\0' ) {
inp->s_addr = htonl(ip);
return 1;
}
return 0;
}
unsigned long strtoul ( const char *p, char **endp, int base ) {
unsigned long ret = 0;
unsigned int charval;
while ( isspace ( *p ) )
p++;
if ( base == 0 ) {
base = 10;
if ( *p == '0' ) {
p++;
base = 8;
if ( ( *p | 0x20 ) == 'x' ) {
p++;
base = 16;
}
}
}
while ( 1 ) {
charval = *p;
if ( charval >= 'a' ) {
charval = ( charval - 'a' + 10 );
} else if ( charval >= 'A' ) {
charval = ( charval - 'A' + 10 );
} else if ( charval <= '9' ) {
charval = ( charval - '0' );
}
if ( charval >= ( unsigned int ) base )
break;
ret = ( ( ret * base ) + charval );
p++;
}
if ( endp )
*endp = ( char * ) p;
return ( ret );
}
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
|
