Print error string when there is failure of socket operation.

Change-Id: I9e94044fc73ab74e811e1015e29714b4dc0d8f54

diff --git a/src/shared/display.c b/src/shared/display.c
index 08194a2..7723432 100644 (file)
--- a/src/shared/display.c
+++ b/src/shared/display.c
@@ -18,6 +18,7 @@
 
 
 #include <stdio.h>
+#include <string.h>
 #include <vconf.h>
 #include <errno.h>
 #include <device-node.h>
@@ -285,26 +286,25 @@ static int send_msg(unsigned int s_bits, unsigned int timeout, unsigned int time
 
        sock = socket(AF_UNIX, SOCK_DGRAM, 0);
        if (sock == -1) {
-               _E("pm socket() failed");
-               return -1;
+               _E("pm socket() failed: %s", strerror(errno));
+               return sock;
        }
 
        remote.sun_family = AF_UNIX;
        if(strlen(SOCK_PATH) >= sizeof(remote.sun_path)) {
                _E("socket path is vey long");
-               return -1;
+               close(sock);
+               return -ENAMETOOLONG;
        }
        strncpy(remote.sun_path, SOCK_PATH, sizeof(remote.sun_path));
 
        rc = sendto(sock, (void *)&p, sizeof(p), 0, (struct sockaddr *)&remote,
                    sizeof(struct sockaddr_un));
-       if (rc == -1) {
-               _E("pm socket sendto() failed");
-       } else
-               rc = 0;
+       if (rc == -1)
+               _E("pm socket sendto() failed: %s", strerror(errno));
 
        close(sock);
-       return rc;
+       return (rc > 0 ? 0 : rc);
 }
 
 API int display_change_state(unsigned int s_bits)