Add wpa_snprintf_hex_sep()
This can be used to print a hexdump with the specified separator between
octets.
Signed-off-by: Jouni Malinen <j@w1.fi>
diff --git a/src/utils/common.c b/src/utils/common.c
index 5fd795f..0bdc38d 100644
--- a/src/utils/common.c
+++ b/src/utils/common.c
@@ -277,6 +277,31 @@
return ret;
}
+
+int wpa_snprintf_hex_sep(char *buf, size_t buf_size, const u8 *data, size_t len,
+ char sep)
+{
+ size_t i;
+ char *pos = buf, *end = buf + buf_size;
+ int ret;
+
+ if (buf_size == 0)
+ return 0;
+
+ for (i = 0; i < len; i++) {
+ ret = os_snprintf(pos, end - pos, "%02x%c",
+ data[i], sep);
+ if (os_snprintf_error(end - pos, ret)) {
+ end[-1] = '\0';
+ return pos - buf;
+ }
+ pos += ret;
+ }
+ pos[-1] = '\0';
+ return pos - buf;
+}
+
+
static inline int _wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data,
size_t len, int uppercase)
{
diff --git a/src/utils/common.h b/src/utils/common.h
index 576e8e7..a0eda4a 100644
--- a/src/utils/common.h
+++ b/src/utils/common.h
@@ -480,6 +480,8 @@
void inc_byte_array(u8 *counter, size_t len);
void wpa_get_ntp_timestamp(u8 *buf);
int wpa_scnprintf(char *buf, size_t size, const char *fmt, ...);
+int wpa_snprintf_hex_sep(char *buf, size_t buf_size, const u8 *data, size_t len,
+ char sep);
int wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len);
int wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data,
size_t len);
