unixsock utils: Retry reading from socket if the call was interrupted.

diff --git a/src/utils/unixsock.c b/src/utils/unixsock.c
index 59bf5631f451e4f401883532e8cd9b1dc4c8791d..da992c94b51601024bc03e2988ca9ff8d7a1e9d8 100644 (file)
--- a/src/utils/unixsock.c
+++ b/src/utils/unixsock.c
@@ -292,21 +292,30 @@ char *
 sdb_unixsock_client_recv(sdb_unixsock_client_t *client,
                char *buffer, size_t buflen)
 {
+       char *tmp;
+
        if ((! client) || (! client->fh) || (! buffer))
                return NULL;
 
        if (client->shutdown & SDB_SHUT_RD) /* reconnect */
                sdb_unixsock_client_connect(client);
 
-       buffer = fgets(buffer, (int)buflen - 1, client->fh);
-       if (! buffer) {
-               if (! feof(client->fh)) {
-                       char errbuf[1024];
-                       sdb_log(SDB_LOG_ERR, "unixsock: Failed to read "
-                                       "from socket (%s): %s", client->path,
-                                       sdb_strerror(errno, errbuf, sizeof(errbuf)));
+       tmp = NULL;
+       while (tmp == NULL) {
+               errno = 0;
+               tmp = fgets(buffer, (int)buflen - 1, client->fh);
+               if (! tmp) {
+                       if ((errno == EAGAIN) || (errno == EINTR))
+                               continue;
+
+                       if (! feof(client->fh)) {
+                               char errbuf[1024];
+                               sdb_log(SDB_LOG_ERR, "unixsock: Failed to read "
+                                               "from socket (%s): %s", client->path,
+                                               sdb_strerror(errno, errbuf, sizeof(errbuf)));
+                       }
+                       return NULL;
                }
-               return buffer;
        }
        buffer[buflen - 1] = '\0';