Repair buffer API so everything starts with buf_.

Our convention is that functions which manipulate a type T should be
named T_foo.  But the buffer functions were super old, and followed
all kinds of conventions.  Now they're uniform.

Here's the perl I used to do this:

\#!/usr/bin/perl -w -i -p

s/read_to_buf\(/buf_read_from_socket\(/;
s/flush_buf\(/buf_flush_to_socket\(/;
s/read_to_buf_tls\(/buf_read_from_tls\(/;
s/flush_buf_tls\(/buf_flush_to_tls\(/;
s/write_to_buf\(/buf_add\(/;
s/write_to_buf_compress\(/buf_add_compress\(/;
s/move_buf_to_buf\(/buf_move_to_buf\(/;
s/peek_from_buf\(/buf_peek\(/;
s/fetch_from_buf\(/buf_get_bytes\(/;
s/fetch_from_buf_line\(/buf_get_line\(/;
s/fetch_from_buf_line\(/buf_get_line\(/;
s/buf_remove_from_front\(/buf_drain\(/;
s/peek_buf_startswith\(/buf_peek_startswith\(/;
s/assert_buf_ok\(/buf_assert_ok\(/;

1 files changed, 7 insertions, 7 deletions

diff --git a/src/or/proto_http.c b/src/or/proto_http.c
index 3977de1866..6e03165745 100644
--- a/src/or/proto_http.c
+++ b/src/or/proto_http.c
@@ -13,11 +13,11 @@
 int
 peek_buf_has_http_command(const buf_t *buf)
 {
-  if (peek_buf_startswith(buf, "CONNECT ") ||
-      peek_buf_startswith(buf, "DELETE ") ||
-      peek_buf_startswith(buf, "GET ") ||
-      peek_buf_startswith(buf, "POST ") ||
-      peek_buf_startswith(buf, "PUT " ))
+  if (buf_peek_startswith(buf, "CONNECT ") ||
+      buf_peek_startswith(buf, "DELETE ") ||
+      buf_peek_startswith(buf, "GET ") ||
+      buf_peek_startswith(buf, "POST ") ||
+      buf_peek_startswith(buf, "PUT " ))
     return 1;
   return 0;
 }
@@ -110,14 +110,14 @@ fetch_from_buf_http(buf_t *buf,
   /* all happy. copy into the appropriate places, and return 1 */
   if (headers_out) {
     *headers_out = tor_malloc(headerlen+1);
-    fetch_from_buf(*headers_out, headerlen, buf);
+    buf_get_bytes(*headers_out, headerlen, buf);
     (*headers_out)[headerlen] = 0; /* NUL terminate it */
   }
   if (body_out) {
     tor_assert(body_used);
     *body_used = bodylen;
     *body_out = tor_malloc(bodylen+1);
-    fetch_from_buf(*body_out, bodylen, buf);
+    buf_get_bytes(*body_out, bodylen, buf);
     (*body_out)[bodylen] = 0; /* NUL terminate it */
   }
   return 1;