af_unix: hide unnecessary symbols

src/lxc/Makefile.am

@@ -439,6 +439,7 @@ lxc_user_nic_SOURCES = cmd/lxc_user_nic.c \
 		       string_utils.c string_utils.h \
 		       syscall_wrappers.h
 lxc_usernsexec_SOURCES = cmd/lxc_usernsexec.c \
+			 af_unix.c af_unix.h \
 			 conf.c conf.h \
 			 file_utils.c file_utils.h \
 			 list.h \

src/lxc/af_unix.h

@@ -10,35 +10,31 @@
 #include "compiler.h"
 
 /* does not enforce \0-termination */
-extern int lxc_abstract_unix_open(const char *path, int type, int flags);
-extern void lxc_abstract_unix_close(int fd);
+__hidden extern int lxc_abstract_unix_open(const char *path, int type, int flags);
+__hidden extern void lxc_abstract_unix_close(int fd);
 /* does not enforce \0-termination */
-extern int lxc_abstract_unix_connect(const char *path);
+__hidden extern int lxc_abstract_unix_connect(const char *path);
 
-extern int lxc_abstract_unix_send_fds(int fd, int *sendfds, int num_sendfds,
-				      void *data, size_t size)
-__access_r(2, 3) __access_r(4, 5);
+__hidden extern int lxc_abstract_unix_send_fds(int fd, int *sendfds, int num_sendfds, void *data,
+					       size_t size) __access_r(2, 3) __access_r(4, 5);
 
-extern int lxc_abstract_unix_send_fds_iov(int fd, int *sendfds, int num_sendfds,
-					  struct iovec *iov, size_t iovlen)
-__access_r(2, 3);
+__hidden extern int lxc_abstract_unix_send_fds_iov(int fd, int *sendfds, int num_sendfds,
+						   struct iovec *iov, size_t iovlen) __access_r(2, 3);
 
-extern int lxc_abstract_unix_recv_fds(int fd, int *recvfds, int num_recvfds,
-				      void *data, size_t size)
-__access_r(2, 3) __access_r(4, 5);
+__hidden extern int lxc_abstract_unix_recv_fds(int fd, int *recvfds, int num_recvfds, void *data,
+					       size_t size) __access_r(2, 3) __access_r(4, 5);
 
-extern int lxc_unix_send_fds(int fd, int *sendfds, int num_sendfds, void *data,
-			     size_t size);
+__hidden extern int lxc_unix_send_fds(int fd, int *sendfds, int num_sendfds, void *data, size_t size);
 
-extern int lxc_abstract_unix_send_credential(int fd, void *data, size_t size)
-__access_r(2, 3);
+__hidden extern int lxc_abstract_unix_send_credential(int fd, void *data, size_t size)
+    __access_r(2, 3);
 
-extern int lxc_abstract_unix_rcv_credential(int fd, void *data, size_t size)
-__access_w(2, 3);
+__hidden extern int lxc_abstract_unix_rcv_credential(int fd, void *data, size_t size)
+    __access_w(2, 3);
 
-extern int lxc_unix_sockaddr(struct sockaddr_un *ret, const char *path);
-extern int lxc_unix_connect(struct sockaddr_un *addr);
-extern int lxc_unix_connect_type(struct sockaddr_un *addr, int type);
-extern int lxc_socket_set_timeout(int fd, int rcv_timeout, int snd_timeout);
+__hidden extern int lxc_unix_sockaddr(struct sockaddr_un *ret, const char *path);
+__hidden extern int lxc_unix_connect(struct sockaddr_un *addr);
+__hidden extern int lxc_unix_connect_type(struct sockaddr_un *addr, int type);
+__hidden extern int lxc_socket_set_timeout(int fd, int rcv_timeout, int snd_timeout);
 
 #endif /* __LXC_AF_UNIX_H */