hash: deprecate poorly-named hash_insert0: use hash_insert_if_absent

[gnulib.git] / lib / passfd.c

diff --git a/lib/passfd.c b/lib/passfd.c
index a4d8841..9458820 100644 (file)
--- a/lib/passfd.c
+++ b/lib/passfd.c
@@ -30,6 +30,12 @@
 
 #include "cloexec.h"
 
+/* The code that uses CMSG_FIRSTHDR is enabled on
+   Linux, MacOS X, FreeBSD, OpenBSD, NetBSD, AIX, OSF/1, Cygwin.
+   The code that uses HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS is enabled on
+   HP-UX, IRIX, Solaris.  */
+
+/* MSG_CMSG_CLOEXEC is defined only on Linux, as of 2011.  */
 #ifndef MSG_CMSG_CLOEXEC
 # define MSG_CMSG_CLOEXEC 0
 #endif
@@ -43,7 +49,7 @@
 int
 sendfd (int sock, int fd)
 {
-  char send = 0;
+  char byte = 0;
   struct iovec iov;
   struct msghdr msg;
 # ifdef CMSG_FIRSTHDR
@@ -53,7 +59,7 @@ sendfd (int sock, int fd)
 
   /* send at least one char */
   memset (&msg, 0, sizeof msg);
-  iov.iov_base = &send;
+  iov.iov_base = &byte;
   iov.iov_len = 1;
   msg.msg_iov = &iov;
   msg.msg_iovlen = 1;
@@ -100,7 +106,7 @@ sendfd (int sock _GL_UNUSED, int fd _GL_UNUSED)
 int
 recvfd (int sock, int flags)
 {
-  char recv = 0;
+  char byte = 0;
   struct iovec iov;
   struct msghdr msg;
   int fd = -1;
@@ -118,7 +124,7 @@ recvfd (int sock, int flags)
 
   /* send at least one char */
   memset (&msg, 0, sizeof msg);
-  iov.iov_base = &recv;
+  iov.iov_base = &byte;
   iov.iov_len = 1;
   msg.msg_iov = &iov;
   msg.msg_iovlen = 1;