diff mbox series

[Openvpn-devel,v1] socket: Change return types of link_socket_write* to ssize_t

Message ID 20240918204844.2820-1-gert@greenie.muc.de
State Accepted
Headers show
Series [Openvpn-devel,v1] socket: Change return types of link_socket_write* to ssize_t | expand

Commit Message

Gert Doering Sept. 18, 2024, 8:48 p.m. UTC 
From: Frank Lichtenheld <frank@lichtenheld.com>

This is the actual return value of send/sendto/sendmsg.
We will leave it to the single caller of link_socket_write()
to decide how to map that to the int buffer world. For now
just cast it explicitly.

Change-Id: I7852c06d331326c1dbab7b642254c0c00d4cebb8
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
---

This change was reviewed on Gerrit and approved by at least one
developer. I request to merge it to master.

Gerrit URL: https://gerrit.openvpn.net/c/openvpn/+/740
This mail reflects revision 1 of this Change.

Acked-by according to Gerrit (reflected above):
Gert Doering <gert@greenie.muc.de>

Comments

Gert Doering Sept. 19, 2024, 6:15 a.m. UTC | #1 
This is fallout from the -Wconversion patch set (commit 53449cb61f)
where it turned out that the whole link_socket* call chain used
inconsistent return types - so now it's consistent with sendmsg() etc.,
all using ssize_t.  Stared-at-code and asked GHA :-)

Your patch has been applied to the master branch.

commit 2cc77debf0221fa0cef3ea470c1328d25397d021 (master)
Author: Frank Lichtenheld
Date:   Wed Sep 18 22:48:44 2024 +0200

     socket: Change return types of link_socket_write* to ssize_t

     Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
     Acked-by: Gert Doering <gert@greenie.muc.de>
     Message-Id: <20240918204844.2820-1-gert@greenie.muc.de>
     URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg29323.html
     Signed-off-by: Gert Doering <gert@greenie.muc.de>


--
kind regards,

Gert Doering
diff mbox series

Patch

diff --git a/src/openvpn/forward.c b/src/openvpn/forward.c
index 40b7cc4..84c23b3 100644
--- a/src/openvpn/forward.c
+++ b/src/openvpn/forward.c
@@ -1790,7 +1790,7 @@ 
                 socks_preprocess_outgoing_link(c, &to_addr, &size_delta);
 
                 /* Send packet */
-                size = link_socket_write(c->c2.link_socket, &c->c2.to_link, to_addr);
+                size = (int)link_socket_write(c->c2.link_socket, &c->c2.to_link, to_addr);
 
                 /* Undo effect of prepend */
                 link_socket_write_post_size_adjust(&size, size_delta, &c->c2.to_link);
diff --git a/src/openvpn/socket.c b/src/openvpn/socket.c
index 17c5e76..6c790a0 100644
--- a/src/openvpn/socket.c
+++ b/src/openvpn/socket.c
@@ -3399,7 +3399,7 @@ 
  * Socket Write Routines
  */
 
-int
+ssize_t
 link_socket_write_tcp(struct link_socket *sock,
                       struct buffer *buf,
                       struct link_socket_actual *to)
@@ -3418,7 +3418,7 @@ 
 
 #if ENABLE_IP_PKTINFO
 
-size_t
+ssize_t
 link_socket_write_udp_posix_sendmsg(struct link_socket *sock,
                                     struct buffer *buf,
                                     struct link_socket_actual *to)
diff --git a/src/openvpn/socket.h b/src/openvpn/socket.h
index 47083ad..bbdabfb 100644
--- a/src/openvpn/socket.h
+++ b/src/openvpn/socket.h
@@ -1099,9 +1099,9 @@ 
  * Socket Write routines
  */
 
-int link_socket_write_tcp(struct link_socket *sock,
-                          struct buffer *buf,
-                          struct link_socket_actual *to);
+ssize_t link_socket_write_tcp(struct link_socket *sock,
+                              struct buffer *buf,
+                              struct link_socket_actual *to);
 
 #ifdef _WIN32
 
@@ -1135,12 +1135,12 @@ 
 
 #else  /* ifdef _WIN32 */
 
-size_t link_socket_write_udp_posix_sendmsg(struct link_socket *sock,
-                                           struct buffer *buf,
-                                           struct link_socket_actual *to);
+ssize_t link_socket_write_udp_posix_sendmsg(struct link_socket *sock,
+                                            struct buffer *buf,
+                                            struct link_socket_actual *to);
 
 
-static inline size_t
+static inline ssize_t
 link_socket_write_udp_posix(struct link_socket *sock,
                             struct buffer *buf,
                             struct link_socket_actual *to)
@@ -1158,7 +1158,7 @@ 
                   (socklen_t) af_addr_size(to->dest.addr.sa.sa_family));
 }
 
-static inline size_t
+static inline ssize_t
 link_socket_write_tcp_posix(struct link_socket *sock,
                             struct buffer *buf,
                             struct link_socket_actual *to)
@@ -1168,7 +1168,7 @@ 
 
 #endif /* ifdef _WIN32 */
 
-static inline size_t
+static inline ssize_t
 link_socket_write_udp(struct link_socket *sock,
                       struct buffer *buf,
                       struct link_socket_actual *to)
@@ -1181,7 +1181,7 @@ 
 }
 
 /* write a TCP or UDP packet to link */
-static inline int
+static inline ssize_t
 link_socket_write(struct link_socket *sock,
                   struct buffer *buf,
                   struct link_socket_actual *to)