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udhcp: shorten mac len from 16 to 6 in lease file

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2009-06-17 11:57:09 +02:00
parent ac906fa85e
commit 31af3d5a1d
15 changed files with 126 additions and 103 deletions
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15
networking/udhcp/options.c
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@@ -120,7 +120,7 @@ const uint8_t dhcp_option_lengths[] ALIGN1 = {
/* get an option with bounds checking (warning, result is not aligned). */
uint8_t* FAST_FUNC get_option(struct dhcpMessage *packet, int code)
uint8_t* FAST_FUNC get_option(struct dhcp_packet *packet, int code)
{
uint8_t *optionptr;
int len;
@@ -159,15 +159,21 @@ uint8_t* FAST_FUNC get_option(struct dhcpMessage *packet, int code)
rem = sizeof(packet->sname);
continue;
}
return NULL;
break;
}
len = 2 + optionptr[OPT_LEN];
rem -= len;
if (rem < 0)
continue; /* complain and return NULL */
if (optionptr[OPT_CODE] == code)
if (optionptr[OPT_CODE] == code) {
#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 2
char buf[256 * 2 + 2];
*bin2hex(buf, (void*) (optionptr + OPT_DATA), optionptr[OPT_LEN]) = '\0';
log2("Option 0x%02x found: %s", code, buf);
#endif
return optionptr + OPT_DATA;
}
if (optionptr[OPT_CODE] == DHCP_OPTION_OVERLOAD) {
overload |= optionptr[OPT_DATA];
@@ -175,6 +181,9 @@ uint8_t* FAST_FUNC get_option(struct dhcpMessage *packet, int code)
}
optionptr += len;
}
/* log3 because udhcpc uses it a lot - very noisy */
log3("Option 0x%02x not found", code);
return NULL;
}