From af5b5e9486f5b30396a1302d07f09d2848804163 Mon Sep 17 00:00:00 2001
From: Fufu Fang <fangfufu2003@gmail.com>
Date: Thu, 19 Jul 2018 10:07:13 +0100
Subject: [PATCH] finished writing header parser

---
 README => README.md |  0
 http.c              | 19 ++++++++++++++++---
 test.c              |  7 ++++++-
 3 files changed, 22 insertions(+), 4 deletions(-)
 rename README => README.md (100%)

diff --git a/README b/README.md
similarity index 100%
rename from README
rename to README.md
diff --git a/http.c b/http.c
index 9dbb127..4322fa0 100644
--- a/http.c
+++ b/http.c
@@ -10,9 +10,6 @@
  * instead of (only) local files. Local files (ie those that can be directly
  * fopened) will drop back to using the underlying clib implementations
  *
- * See the main() function at the bottom that shows an app that retrieves from
- * a specified url using fgets() and fread() and saves as two output files.
- *
  * Copyright (c) 2003, 2017 Simtec Electronics
  *
  * Re-implemented by Vincent Sanders <vince@kyllikki.org> with extensive
@@ -118,6 +115,22 @@ static size_t header_callback(char *buffer, size_t size,
     memcpy(&url->header[url->header_pos], buffer, size);
     url->header_pos += size;
 
+    char *hf;
+    hf = "Accept-Ranges:";
+    if (!strncasecmp(buffer, hf, strlen(hf))) {
+        url->accept_range = 1;
+    }
+    hf = "Content-Length: ";
+    if (!strncasecmp(buffer, hf, strlen(hf))) {
+        /*
+         * We are doing this, because libcurl documentation says
+         *"Do not assume that the header line is zero terminated!"
+         */
+        char *tmp = malloc((nitems) * sizeof(char));
+        tmp[nitems] = '\0';
+        strncpy(tmp, buffer, nitems);
+        url->content_length = atoi(strchr(tmp, ' ')+1);
+    }
     return size;
 }
 
diff --git a/test.c b/test.c
index 27c0fc0..30d55cd 100644
--- a/test.c
+++ b/test.c
@@ -22,7 +22,7 @@ int http_test()
     /* ---------------------------Test fgets ----------------------------*/
 
     /* open the input file */
-    handle = url_fopen(url, "rh");
+    handle = url_fopen(url, "hr");
     if(!handle) {
         printf("couldn't url_fopen() %s\n", url);
         return 2;
@@ -40,7 +40,12 @@ int http_test()
         url_fgets(buffer, sizeof(buffer), handle);
         fwrite(buffer, 1, strlen(buffer), outf);
     }
+
+    /* Print the header */
     printf(handle->header);
+    printf("\n");
+    printf("accept-range: %d\n", handle->accept_range);
+    printf("filesize: %d\n", handle->content_length);
 
     /* close the handles for the fgets test*/
     url_fclose(handle);