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[bspwm.git] / bspc.c

diff --git a/bspc.c b/bspc.c
index 8ab75320e81a19076d0facc19118b93b2dce27b8..c5e1697e689528ea9aaa843fe84810aadd4be03b 100644 (file)
--- a/bspc.c
+++ b/bspc.c
@@ -1,40 +1,62 @@
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <unistd.h>
-
-#define SOCK_PATH  "BSPWM_SOCKET"
+#include "helpers.h"
+#include "common.h"
 
 int main(int argc, char *argv[])
 {
-    int sock_fd, i;
+    int sock_fd;
     struct sockaddr_un sock_address;
-    char *sock_path;
-    char response[BUFSIZ];
-    int num_args = argc - 1;
-    char **args = (argv + 1);
-
-    if (num_args < 1)
-        return;
+    char msg[BUFSIZ];
+    char rsp[BUFSIZ];
 
-    sock_path = getenv(SOCK_PATH);
+    if (argc < 2)
+        err("No arguments given.\n");
 
-    if (sock_path == NULL)
-        return;
+    char *sock_path = getenv(SOCKET_ENV_VAR);
+    if (sock_path != NULL && sizeof(sock_address.sun_path) <= strlen(sock_path))
+        err("The socket path can't fit into the socket address.\n");
 
     sock_address.sun_family = AF_UNIX;
-    strcpy(sock_address.sun_path, sock_path);
+    strncpy(sock_address.sun_path, (sock_path == NULL ? DEFAULT_SOCKET_PATH : sock_path), sizeof(sock_address.sun_path));
+    sock_address.sun_path[sizeof(sock_address.sun_path) - 1] = 0;
+
+    argc--, argv++;
+    int msg_len = 0;
+
+    for (int offset = 0, rem = sizeof(msg), n = 0; argc > 0 && rem > 0; offset += n, msg_len = offset, rem -= n, argc--, argv++) {
+        n = snprintf(msg + offset, rem, "%s%c", *argv, 0);
+        msg_len += n;
+    }
 
-    sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
-    connect(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address));
+    if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+        err("Failed to create the socket.\n");
 
-    for (i = 0; i < num_args; i++) {
-        send(sock_fd, args[i], strlen(args[i]), 0);
-        
-        if (recv(sock_fd, response, sizeof(response), 0) > 0)
-            printf("%s\n", response);
+    if (connect(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address)) == -1)
+        err("Failed to connect to the socket.\n");
+
+    if (send(sock_fd, msg, msg_len, 0) == -1)
+        err("Failed to send the data.\n");
+
+    int ret = EXIT_SUCCESS;
+
+    int n = recv(sock_fd, rsp, sizeof(rsp), 0);
+    if (n == -1) {
+        err("Failed to get the response.\n");
+    } else if (n > 0) {
+        if (n == 1 && rsp[0] == MESSAGE_FAILURE) {
+            ret = EXIT_FAILURE;
+        } else {
+            rsp[n] = '\0';
+            printf("%s\n", rsp);
+        }
     }
-                
+
+    if (sock_fd)
+        close(sock_fd);
+
+    return ret;
 }