Merge commit 'd9a2e87b1ce44cce23801e7ec6810f8bf994fa23'

[ffmpeg] / libavformat / http.c

diff --git a/libavformat/http.c b/libavformat/http.c
index 85ed7a5c81621d0e0603b9c1153b8045e7aef50c..6412265310a77af2c3430ab94dbaea09570a669c 100644 (file)
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -32,8 +32,11 @@
 /* XXX: POST protocol is not completely implemented because ffmpeg uses
    only a subset of it. */
 
-/* used for protocol handling */
-#define BUFFER_SIZE 4096
+/* The IO buffer size is unrelated to the max URL size in itself, but needs
+ * to be large enough to fit the full request headers (including long
+ * path names).
+ */
+#define BUFFER_SIZE MAX_URL_SIZE
 #define MAX_REDIRECTS 8
 
 typedef struct {
@@ -101,8 +104,8 @@ static int http_open_cnx(URLContext *h)
     const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
     char hostname[1024], hoststr[1024], proto[10];
     char auth[1024], proxyauth[1024] = "";
-    char path1[1024];
-    char buf[1024], urlbuf[1024];
+    char path1[MAX_URL_SIZE];
+    char buf[1024], urlbuf[MAX_URL_SIZE];
     int port, use_proxy, err, location_changed = 0, redirects = 0, attempts = 0;
     HTTPAuthType cur_auth_type, cur_proxy_auth_type;
     HTTPContext *s = h->priv_data;
@@ -352,7 +355,7 @@ static inline int has_header(const char *str, const char *header)
 static int http_read_header(URLContext *h, int *new_location)
 {
     HTTPContext *s = h->priv_data;
-    char line[1024];
+    char line[MAX_URL_SIZE];
     int err = 0;
 
     s->chunksize = -1;
@@ -411,6 +414,9 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
     if (!has_header(s->headers, "\r\nAccept: "))
         len += av_strlcpy(headers + len, "Accept: */*\r\n",
                           sizeof(headers) - len);
+    // Note: we send this on purpose even when s->off is 0,
+    // since it allows us to detect more reliably if a (non-conforming)
+    // server supports seeking by analysing the reply headers.
     if (!has_header(s->headers, "\r\nRange: ") && !post)
         len += av_strlcatf(headers + len, sizeof(headers) - len,
                            "Range: bytes=%"PRId64"-\r\n", s->off);