diff --git a/src/utils/common.c b/src/utils/common.c
index 9c7d0d4..9856463 100644
--- a/src/utils/common.c
+++ b/src/utils/common.c
@@ -697,6 +697,29 @@
 }
 
 
+int has_ctrl_char(const u8 *data, size_t len)
+{
+	size_t i;
+
+	for (i = 0; i < len; i++) {
+		if (data[i] < 32 || data[i] == 127)
+			return 1;
+	}
+	return 0;
+}
+
+
+int has_newline(const char *str)
+{
+	while (*str) {
+		if (*str == '\n' || *str == '\r')
+			return 1;
+		str++;
+	}
+	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)
@@ -1123,3 +1146,51 @@
 {
 	return c > 0 && c < 32;
 }
+
+
+/**
+ * ssid_parse - Parse a string that contains SSID in hex or text format
+ * @buf: Input NULL terminated string that contains the SSID
+ * @ssid: Output SSID
+ * Returns: 0 on success, -1 otherwise
+ *
+ * The SSID has to be enclosed in double quotes for the text format or space
+ * or NULL terminated string of hex digits for the hex format. buf can include
+ * additional arguments after the SSID.
+ */
+int ssid_parse(const char *buf, struct wpa_ssid_value *ssid)
+{
+	char *tmp, *res, *end;
+	size_t len;
+
+	ssid->ssid_len = 0;
+
+	tmp = os_strdup(buf);
+	if (!tmp)
+		return -1;
+
+	if (*tmp != '"') {
+		end = os_strchr(tmp, ' ');
+		if (end)
+			*end = '\0';
+	} else {
+		end = os_strchr(tmp + 1, '"');
+		if (!end) {
+			os_free(tmp);
+			return -1;
+		}
+
+		end[1] = '\0';
+	}
+
+	res = wpa_config_parse_string(tmp, &len);
+	if (res && len <= SSID_MAX_LEN) {
+		ssid->ssid_len = len;
+		os_memcpy(ssid->ssid, res, len);
+	}
+
+	os_free(tmp);
+	os_free(res);
+
+	return ssid->ssid_len ? 0 : -1;
+}
diff --git a/src/utils/common.h b/src/utils/common.h
index 6f0de69..d19927b 100644
--- a/src/utils/common.h
+++ b/src/utils/common.h
@@ -448,6 +448,13 @@
 #endif /* __GNUC__ */
 #endif /* __must_check */
 
+#define SSID_MAX_LEN 32
+
+struct wpa_ssid_value {
+	u8 ssid[SSID_MAX_LEN];
+	size_t ssid_len;
+};
+
 int hwaddr_aton(const char *txt, u8 *addr);
 int hwaddr_masked_aton(const char *txt, u8 *addr, u8 *mask, u8 maskable);
 int hwaddr_compact_aton(const char *txt, u8 *addr);
@@ -464,6 +471,7 @@
 			       size_t len);
 
 int hwaddr_mask_txt(char *buf, size_t len, const u8 *addr, const u8 *mask);
+int ssid_parse(const char *buf, struct wpa_ssid_value *ssid);
 
 #ifdef CONFIG_NATIVE_WINDOWS
 void wpa_unicode2ascii_inplace(TCHAR *str);
@@ -480,6 +488,8 @@
 
 char * wpa_config_parse_string(const char *value, size_t *len);
 int is_hex(const u8 *data, size_t len);
+int has_ctrl_char(const u8 *data, size_t len);
+int has_newline(const char *str);
 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);
diff --git a/src/utils/edit_simple.c b/src/utils/edit_simple.c
index 13173cb..2ffd1a2 100644
--- a/src/utils/edit_simple.c
+++ b/src/utils/edit_simple.c
@@ -47,6 +47,12 @@
 		return;
 	}
 
+	if (c == '\b') {
+		if (cmdbuf_pos > 0)
+			cmdbuf_pos--;
+		return;
+	}
+
 	if (c >= 32 && c <= 255) {
 		if (cmdbuf_pos < (int) sizeof(cmdbuf) - 1) {
 			cmdbuf[cmdbuf_pos++] = c;
diff --git a/src/utils/wpabuf.c b/src/utils/wpabuf.c
index 11e7323..96cb25c 100644
--- a/src/utils/wpabuf.c
+++ b/src/utils/wpabuf.c
@@ -310,3 +310,33 @@
 		wpabuf_overflow(buf, res);
 	buf->used += res;
 }
+
+
+/**
+ * wpabuf_parse_bin - Parse a null terminated string of binary data to a wpabuf
+ * @buf: Buffer with null terminated string (hexdump) of binary data
+ * Returns: wpabuf or %NULL on failure
+ *
+ * The string len must be a multiple of two and contain only hexadecimal digits.
+ */
+struct wpabuf * wpabuf_parse_bin(const char *buf)
+{
+	size_t len;
+	struct wpabuf *ret;
+
+	len = os_strlen(buf);
+	if (len & 0x01)
+		return NULL;
+	len /= 2;
+
+	ret = wpabuf_alloc(len);
+	if (ret == NULL)
+		return NULL;
+
+	if (hexstr2bin(buf, wpabuf_put(ret, len), len)) {
+		wpabuf_free(ret);
+		return NULL;
+	}
+
+	return ret;
+}
diff --git a/src/utils/wpabuf.h b/src/utils/wpabuf.h
index 9cd8a07..01da41b 100644
--- a/src/utils/wpabuf.h
+++ b/src/utils/wpabuf.h
@@ -37,6 +37,7 @@
 struct wpabuf * wpabuf_concat(struct wpabuf *a, struct wpabuf *b);
 struct wpabuf * wpabuf_zeropad(struct wpabuf *buf, size_t len);
 void wpabuf_printf(struct wpabuf *buf, char *fmt, ...) PRINTF_FORMAT(2, 3);
+struct wpabuf * wpabuf_parse_bin(const char *buf);
 
 
 /**