Add support for client/server connection over unix domain sockets

[fio.git] / client.c

diff --git a/client.c b/client.c
index 9806b41c642b46d4dcb72bfe0c3b46dd6885e4fc..88da9a1e6dd932aac41d2b82314588613d30393f 100644 (file)
--- a/client.c
+++ b/client.c
@@ -9,6 +9,7 @@
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <sys/socket.h>
+#include <sys/un.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <netdb.h>
@@ -24,11 +25,13 @@ struct fio_client {
        struct flist_head fd_hash_list;
        struct flist_head name_hash_list;
        struct sockaddr_in addr;
+       struct sockaddr_un addr_un;
        char *hostname;
        int fd;
 
        int state;
        int skip_newline;
+       int is_sock;
 
        uint16_t argc;
        char **argv;
@@ -184,7 +187,12 @@ void fio_client_add(const char *hostname)
        INIT_FLIST_HEAD(&client->fd_hash_list);
        INIT_FLIST_HEAD(&client->name_hash_list);
 
-       client->hostname = strdup(hostname);
+       if (!strncmp(hostname, "sock:", 5)) {
+               client->hostname = strdup(hostname + 5);
+               client->is_sock = 1;
+       } else
+               client->hostname = strdup(hostname);
+
        client->fd = -1;
 
        fio_client_add_name_hash(client);
@@ -195,13 +203,10 @@ void fio_client_add(const char *hostname)
        nr_clients++;
 }
 
-static int fio_client_connect(struct fio_client *client)
+static int fio_client_connect_ip(struct fio_client *client)
 {
        int fd;
 
-       dprint(FD_NET, "client: connect to host %s\n", client->hostname);
-
-       memset(&client->addr, 0, sizeof(client->addr));
        client->addr.sin_family = AF_INET;
        client->addr.sin_port = htons(fio_net_port);
 
@@ -213,7 +218,7 @@ static int fio_client_connect(struct fio_client *client)
                        log_err("fio: gethostbyname: %s\n", strerror(errno));
                        log_err("fio: failed looking up hostname %s\n",
                                        client->hostname);
-                       return 1;
+                       return -1;
                }
 
                memcpy(&client->addr.sin_addr, hent->h_addr, 4);
@@ -222,15 +227,59 @@ static int fio_client_connect(struct fio_client *client)
        fd = socket(AF_INET, SOCK_STREAM, 0);
        if (fd < 0) {
                log_err("fio: socket: %s\n", strerror(errno));
-               return 1;
+               return -1;
        }
 
        if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
                log_err("fio: connect: %s\n", strerror(errno));
                log_err("fio: failed to connect to %s\n", client->hostname);
-               return 1;
+               return -1;
+       }
+
+       return fd;
+}
+
+static int fio_client_connect_sock(struct fio_client *client)
+{
+       struct sockaddr_un *addr = &client->addr_un;
+       fio_socklen_t len;
+       int fd;
+
+       memset(addr, 0, sizeof(*addr));
+       addr->sun_family = AF_UNIX;
+       strcpy(addr->sun_path, client->hostname);
+
+       fd = socket(AF_UNIX, SOCK_STREAM, 0);
+       if (fd < 0) {
+               log_err("fio: socket: %s\n", strerror(errno));
+               return -1;
+       }
+
+       len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
+       if (connect(fd, (struct sockaddr *) addr, len) < 0) {
+               log_err("fio: connect; %s\n", strerror(errno));
+               return -1;
        }
 
+       return fd;
+}
+
+static int fio_client_connect(struct fio_client *client)
+{
+       int fd;
+
+       dprint(FD_NET, "client: connect to host %s\n", client->hostname);
+
+       memset(&client->addr, 0, sizeof(client->addr));
+
+       if (client->is_sock)
+               fd = fio_client_connect_sock(client);
+       else
+               fd = fio_client_connect_ip(client);
+
+       if (fd < 0)
+               return 1;
+
        client->fd = fd;
        fio_client_add_fd_hash(client);
        client->state = Client_connected;