From 467336a84e94195a6832a07def2c2a8a42a659c8 Mon Sep 17 00:00:00 2001
From: Hubert Tarasiuk <address@hidden>
Date: Sun, 24 May 2015 13:29:45 +0200
Subject: [PATCH 1/9] Const-qualify buffer when writing to fd.

* src/connect.c: add const qualifier in sock_write, fd_write.
* src/connect.h: add const qualifier in fd_write declaration and
in transport_implementation struct.
* src/gnutls.c: add const qualifier in wgnutls_write.
---
 src/connect.c | 4 ++--
 src/connect.h | 4 ++--
 src/gnutls.c  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/connect.c b/src/connect.c
index 024b231..45eb57f 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -764,7 +764,7 @@ sock_read (int fd, char *buf, int bufsize)
 }
 
 static int
-sock_write (int fd, char *buf, int bufsize)
+sock_write (int fd, const char *buf, int bufsize)
 {
   int res;
   do
@@ -947,7 +947,7 @@ fd_peek (int fd, char *buf, int bufsize, double timeout)
    TIMEOUT.  */
 
 int
-fd_write (int fd, char *buf, int bufsize, double timeout)
+fd_write (int fd, const char *buf, int bufsize, double timeout)
 {
   int res;
   struct transport_info *info;
diff --git a/src/connect.h b/src/connect.h
index 9b08848..5ea2616 100644
--- a/src/connect.h
+++ b/src/connect.h
@@ -65,7 +65,7 @@ bool test_socket_open (int);
 
 struct transport_implementation {
   int (*reader) (int, char *, int, void *);
-  int (*writer) (int, char *, int, void *);
+  int (*writer) (int, const char *, int, void *);
   int (*poller) (int, double, int, void *);
   int (*peeker) (int, char *, int, void *);
   const char *(*errstr) (int, void *);
@@ -75,7 +75,7 @@ struct transport_implementation {
 void fd_register_transport (int, struct transport_implementation *, void *);
 void *fd_transport_context (int);
 int fd_read (int, char *, int, double);
-int fd_write (int, char *, int, double);
+int fd_write (int, const char *, int, double);
 int fd_peek (int, char *, int, double);
 const char *fd_errstr (int);
 void fd_close (int);
diff --git a/src/gnutls.c b/src/gnutls.c
index be04342..250d7fb 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -326,7 +326,7 @@ wgnutls_read (int fd, char *buf, int bufsize, void *arg)
 }
 
 static int
-wgnutls_write (int fd _GL_UNUSED, char *buf, int bufsize, void *arg)
+wgnutls_write (int fd _GL_UNUSED, const char *buf, int bufsize, void *arg)
 {
   int ret;
   struct wgnutls_transport_context *ctx = arg;
-- 
2.4.1