return -3;
}
+struct agent {
+ int cmdfd, responsefd;
+};
-/* Do this before doing any tdb stuff. Return handle, or -1. */
-int prepare_external_agent(void)
+/* Do this before doing any tdb stuff. Return handle, or NULL. */
+struct agent *prepare_external_agent(void)
{
int pid;
int command[2], response[2];
char name[PATH_MAX];
if (pipe(command) != 0 || pipe(response) != 0)
- return -1;
+ return NULL;
pid = fork();
if (pid < 0)
- return -1;
+ return NULL;
if (pid != 0) {
+ struct agent *agent = malloc(sizeof(*agent));
+
close(command[0]);
close(response[1]);
- /* FIXME: Make fds consective. */
- dup2(command[1]+1, response[1]);
- return command[1];
+ agent->cmdfd = command[1];
+ agent->responsefd = response[0];
+ return agent;
}
close(command[1]);
}
/* Ask the external agent to try to do a transaction. */
-bool external_agent_transaction(int handle, const char *tdbname)
+bool external_agent_transaction(struct agent *agent, const char *tdbname)
{
int res;
- if (write(handle, tdbname, strlen(tdbname)+1)
+ if (write(agent->cmdfd, tdbname, strlen(tdbname)+1)
!= strlen(tdbname)+1)
err(1, "Writing to agent");
- if (read(handle+1, &res, sizeof(res)) != sizeof(res))
+ if (read(agent->responsefd, &res, sizeof(res)) != sizeof(res))
err(1, "Reading from agent");
if (res > 1)