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Use a shared helper function for merging supported rate lists

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Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-08-19 17:52:41 +03:00
parent a2f94dbe62
commit 3489cfb09c
4 changed files with 47 additions and 41 deletions
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32
src/utils/common.c
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@ -578,3 +578,35 @@ int is_hex(const u8 *data, size_t len)
}
return 0;
}
size_t merge_byte_arrays(u8 *res, size_t res_len,
const u8 *src1, size_t src1_len,
const u8 *src2, size_t src2_len)
{
size_t len = 0;
os_memset(res, 0, res_len);
if (src1) {
if (src1_len >= res_len) {
os_memcpy(res, src1, res_len);
return res_len;
}
os_memcpy(res, src1, src1_len);
len += src1_len;
}
if (src2) {
if (len + src2_len >= res_len) {
os_memcpy(res + len, src2, res_len - len);
return res_len;
}
os_memcpy(res + len, src2, src2_len);
len += src2_len;
}
return len;
}

3
src/utils/common.h
View file

@ -448,6 +448,9 @@ const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len);
char * wpa_config_parse_string(const char *value, size_t *len);
int is_hex(const u8 *data, size_t len);
size_t merge_byte_arrays(u8 *res, size_t res_len,
const u8 *src1, size_t src1_len,
const u8 *src2, size_t src2_len);
static inline int is_zero_ether_addr(const u8 *a)
{