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[PATCH] s390: qeth driver fixes [2/6]

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[PATCH 5/9] s390: qeth driver fixes [2/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	- fixed error handling in create_device_attributes
	- fixed some minor bugs in IPv4
	  and IPv6 address checking

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Frank Pavlic
2006-09-15 16:26:07 +02:00
committed by Jeff Garzik
parent 330b636908
commit 1fda1a120b
2 changed files with 33 additions and 16 deletions
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25
drivers/s390/net/qeth.h
View File

@@ -1096,10 +1096,11 @@ qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
{
int count = 0, rc = 0;
int in[4];
char c;
rc = sscanf(buf, "%d.%d.%d.%d%n",
&in[0], &in[1], &in[2], &in[3], &count);
if (rc != 4 || count<=0)
rc = sscanf(buf, "%u.%u.%u.%u%c",
&in[0], &in[1], &in[2], &in[3], &c);
if (rc != 4 && (rc != 5 || c != '\n'))
return -EINVAL;
for (count = 0; count < 4; count++) {
if (in[count] > 255)
@@ -1123,24 +1124,28 @@ qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
static inline int
qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
{
char *end, *start;
const char *end, *end_tmp, *start;
__u16 *in;
char num[5];
int num2, cnt, out, found, save_cnt;
unsigned short in_tmp[8] = {0, };
cnt = out = found = save_cnt = num2 = 0;
end = start = (char *) buf;
end = start = buf;
in = (__u16 *) addr;
memset(in, 0, 16);
while (end) {
end = strchr(end,':');
while (*end) {
end = strchr(start,':');
if (end == NULL) {
end = (char *)buf + (strlen(buf));
out = 1;
end = buf + strlen(buf);
if ((end_tmp = strchr(start, '\n')) != NULL)
end = end_tmp;
out = 1;
}
if ((end - start)) {
memset(num, 0, 5);
if ((end - start) > 4)
return -EINVAL;
memcpy(num, start, end - start);
if (!qeth_isxdigit(num))
return -EINVAL;
@@ -1158,6 +1163,8 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
}
start = ++end;
}
if (cnt + save_cnt > 8)
return -EINVAL;
cnt = 7;
while (save_cnt)
in[cnt--] = in_tmp[--save_cnt];