[更新] 整理代码

README.md

@@ -1,10 +1,48 @@
 # libcurl2rtt
 The curl library ported on the RT-Thread platform. | 基于 RT-Thread 移植的 curl 库. 
 
-## 1. 效果
+```
+msh /etc/certs>curl --verbose --capath ./ https://www.rt-thread.com/service/rt-thread.txt
+* timeout on name lookup is not supported
+*   Trying 118.31.15.152:443...
+* TCP_NODELAY set
+* Connected to www.rt-thread.com () port 443 (#0)
+* mbedTLS: Connecting to www.rt-thread.com:443
+* mbedTLS: Set min SSL version to TLS 1.0
+* mbedTLS: Handshake complete, cipher is TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256
+* Dumping cert info:
+* cert. version     : 3
+* serial number     : 02:1C:94:E5:9C:4C:CE:18:54:87:B2:A0:FF:85:F4:0C
+* issuer name       : C=US, O=DigiCert Inc, OU=www.digicert.com, CN=Encryption Everywhere DV TLS CA - G1
+* subject name      : CN=www.rt-thread.com
+* issued  on        : 2019-06-23 00:00:00
+* expires on        : 2020-06-22 12:00:00
+* signed using      : RSA with SHA-256
+* RSA key size      : 2048 bits
+* basic constraints : CA=false
+* subject alt name  : www.rt-thread.com, rt-thread.com
+* key usage         : Digital Signature, Key Encipherment
+* ext key usage     : TLS Web Server Authentication, TLS Web Client Authentication
 
-1. http
-![image](https://github.com/liu2guang/libcurl2rtt/blob/master/figures/curl_http.png)
-
-2. https
-![image](https://github.com/liu2guang/libcurl2rtt/blob/master/figures/curl_https.png)
+* SSL connected
+> GET /service/rt-thread.txt HTTP/1.1
+> Host: www.rt-thread.com
+> User-Agent: curl/7.67.0-DEV
+> Accept: */*
+> 
+* Mark bundle as not supporting multiuse
+< HTTP/1.1 200 OK
+< Server: nginx/1.10.3 (Ubuntu)
+< Date: Sun, 29 Dec 2019 17:21:10 GMT
+< Content-Type: text/plain
+< Content-Length: 267
+< Connection: keep-alive
+< Last-Modified: Tue, 18 Sep 2018 03:55:48 GMT
+< ETag: "10b-5761d43d95900"
+< Accept-Ranges: bytes
+< Vary: Accept-Encoding
+< 
+RT-Thread is an open source IoT operating system from China, which has strong scalability: from a tiny kernel running on a tiny core, for example ARM Cortex-M0, or Cortex-M3/4/7, to a rich feature system running on MIPS32, ARM Cortex-A8, ARM Cortex-A9 DualCore etc.
+* Connection #0 to host www.rt-thread.com left intact
+msh /etc/certs>
+```

pkgs/curl/SConscript → curl/SConscript

@@ -12,7 +12,7 @@ Import('rtconfig')
 # Package configuration
 #---------------------------------------------------------------------------------
 PKGNAME = "curl"
-DEPENDS = [""]
+DEPENDS = ["PKG_USING_LIBCURL2RTT"]
 
 #---------------------------------------------------------------------------------
 # Compile the configuration