build-sys: fix usage of path macros

[elogind.git] / src / reply-password.c

diff --git a/src/reply-password.c b/src/reply-password.c
index 236fdcc94cc585d930bdcca757b6035240d20a15..575a437645283497ee70fb0a6d7d512474bc7d94 100644 (file)
--- a/src/reply-password.c
+++ b/src/reply-password.c
@@ -31,6 +31,7 @@
 #include <sys/stat.h>
 #include <sys/signalfd.h>
 #include <getopt.h>
+#include <stddef.h>
 
 #include "log.h"
 #include "macro.h"
@@ -48,9 +49,9 @@ static int send_on_socket(int fd, const char *socket_name, const void *packet, s
 
         zero(sa);
         sa.un.sun_family = AF_UNIX;
-        strncpy(sa.un.sun_path+1, socket_name, sizeof(sa.un.sun_path)-1);
+        strncpy(sa.un.sun_path, socket_name, sizeof(sa.un.sun_path));
 
-        if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, sizeof(sa_family_t) + 1 + strlen(socket_name)) < 0) {
+        if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(socket_name)) < 0) {
                 log_error("Failed to send: %m");
                 return -1;
         }