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Diffstat (limited to 'drivers/s390/net/qeth.h')
-rw-r--r--drivers/s390/net/qeth.h112
1 files changed, 47 insertions, 65 deletions
diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index 9a064d4727ad..4df0fcd7b10b 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -1076,16 +1076,6 @@ qeth_get_qdio_q_format(struct qeth_card *card)
}
static inline int
-qeth_isdigit(char * buf)
-{
- while (*buf) {
- if (!isdigit(*buf++))
- return 0;
- }
- return 1;
-}
-
-static inline int
qeth_isxdigit(char * buf)
{
while (*buf) {
@@ -1104,33 +1094,17 @@ qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
static inline int
qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
{
- const char *start, *end;
- char abuf[4];
- char *tmp;
- int len;
- int i;
-
- start = buf;
- for (i = 0; i < 4; i++) {
- if (i == 3) {
- end = strchr(start,0xa);
- if (end)
- len = end - start;
- else
- len = strlen(start);
- }
- else {
- end = strchr(start, '.');
- len = end - start;
- }
- if ((len <= 0) || (len > 3))
- return -EINVAL;
- memset(abuf, 0, 4);
- strncpy(abuf, start, len);
- if (!qeth_isdigit(abuf))
+ int count = 0, rc = 0;
+ int in[4];
+
+ rc = sscanf(buf, "%d.%d.%d.%d%n",
+ &in[0], &in[1], &in[2], &in[3], &count);
+ if (rc != 4 || count)
+ return -EINVAL;
+ for (count = 0; count < 4; count++) {
+ if (in[count] > 255)
return -EINVAL;
- addr[i] = simple_strtoul(abuf, &tmp, 10);
- start = end + 1;
+ addr[count] = in[count];
}
return 0;
}
@@ -1149,36 +1123,44 @@ qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
static inline int
qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
{
- const char *start, *end;
- u16 *tmp_addr;
- char abuf[5];
- char *tmp;
- int len;
- int i;
-
- tmp_addr = (u16 *)addr;
- start = buf;
- for (i = 0; i < 8; i++) {
- if (i == 7) {
- end = strchr(start,0xa);
- if (end)
- len = end - start;
- else
- len = strlen(start);
- }
- else {
- end = strchr(start, ':');
- len = end - start;
+ char *end, *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;
+ in = (__u16 *) addr;
+ memset(in, 0, 16);
+ while (end) {
+ end = strchr(end,':');
+ if (end == NULL) {
+ end = (char *)buf + (strlen(buf));
+ out = 1;
+ }
+ if ((end - start)) {
+ memset(num, 0, 5);
+ memcpy(num, start, end - start);
+ if (!qeth_isxdigit(num))
+ return -EINVAL;
+ sscanf(start, "%x", &num2);
+ if (found)
+ in_tmp[save_cnt++] = num2;
+ else
+ in[cnt++] = num2;
+ if (out)
+ break;
+ } else {
+ if (found)
+ return -EINVAL;
+ found = 1;
}
- if ((len <= 0) || (len > 4))
- return -EINVAL;
- memset(abuf, 0, 5);
- strncpy(abuf, start, len);
- if (!qeth_isxdigit(abuf))
- return -EINVAL;
- tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
- start = end + 1;
- }
+ start = ++end;
+ }
+ cnt = 7;
+ while (save_cnt)
+ in[cnt--] = in_tmp[--save_cnt];
return 0;
}
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