Last change
on this file since 3772 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
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Property svn:eol-style
set to
native
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File size:
1.1 KB
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Rev | Line | |
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[3621] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Utility routines.
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| 4 | */
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| 5 |
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| 6 | //kbuild:lib-$(CONFIG_ARP) += in_ether.o
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| 7 | //kbuild:lib-$(CONFIG_IFCONFIG) += in_ether.o
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| 8 | //kbuild:lib-$(CONFIG_IFENSLAVE) += in_ether.o
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| 9 |
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| 10 | #include "libbb.h"
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| 11 | #include <net/if_arp.h>
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| 12 | #include <net/ethernet.h>
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| 13 |
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| 14 | /* Convert Ethernet address from "XX[:]XX[:]XX[:]XX[:]XX[:]XX" to sockaddr.
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| 15 | * Return nonzero on error.
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| 16 | */
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| 17 | int FAST_FUNC in_ether(const char *bufp, struct sockaddr *sap)
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| 18 | {
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| 19 | char *ptr;
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| 20 | int i, j;
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| 21 | unsigned char val;
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| 22 | unsigned char c;
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| 23 |
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| 24 | sap->sa_family = ARPHRD_ETHER;
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| 25 | ptr = (char *) sap->sa_data;
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| 26 |
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| 27 | i = ETH_ALEN;
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| 28 | goto first;
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| 29 | do {
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| 30 | /* We might get a semicolon here */
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| 31 | if (*bufp == ':')
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| 32 | bufp++;
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| 33 | first:
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| 34 | j = val = 0;
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| 35 | do {
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| 36 | c = *bufp;
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| 37 | if (((unsigned char)(c - '0')) <= 9) {
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| 38 | c -= '0';
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| 39 | } else if ((unsigned char)((c|0x20) - 'a') <= 5) {
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| 40 | c = (unsigned char)((c|0x20) - 'a') + 10;
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| 41 | } else {
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| 42 | if (j && (c == ':' || c == '\0'))
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| 43 | /* One-digit byte: __:X:__ */
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| 44 | break;
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| 45 | return -1;
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| 46 | }
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| 47 | ++bufp;
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| 48 | val <<= 4;
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| 49 | val += c;
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| 50 | j ^= 1;
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| 51 | } while (j);
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| 52 |
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| 53 | *ptr++ = val;
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| 54 | } while (--i);
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| 55 |
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| 56 | /* Error if we aren't at end of string */
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| 57 | return *bufp;
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| 58 | }
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