static int
table_proc_fetch(void *arg, enum table_service s, union lookup *lk)
{
struct table_proc_priv *priv = arg;
struct ibuf *buf;
int r;
buf = imsg_create(&priv->ibuf, PROC_TABLE_FETCH, 0, 0, sizeof(s));
if (buf == NULL)
return (-1);
if (imsg_add(buf, &s, sizeof(s)) == -1)
return (-1);
imsg_close(&priv->ibuf, buf);
table_proc_call(priv);
table_proc_read(&r, sizeof(r));
if (r == 1) {
if (rlen == 0) {
log_warnx("warn: table-proc: empty response");
fatalx("table-proc: exiting");
}
if (rdata[rlen - 1] != '\0') {
log_warnx("warn: table-proc: not NUL-terminated");
fatalx("table-proc: exiting");
}
r = table_parse_lookup(s, NULL, rdata, lk);
table_proc_read(NULL, rlen);
}
table_proc_end();
return (r);
}
static void *
table_proc_open(struct table *table)
{
struct table_proc_priv *priv;
struct table_open_params op;
int fd;
priv = xcalloc(1, sizeof(*priv), "table_proc_open");
fd = fork_proc_backend("table", table->t_config, table->t_name);
if (fd == -1)
fatalx("table-proc: exiting");
imsg_init(&priv->ibuf, fd);
memset(&op, 0, sizeof op);
op.version = PROC_TABLE_API_VERSION;
(void)strlcpy(op.name, table->t_name, sizeof op.name);
imsg_compose(&priv->ibuf, PROC_TABLE_OPEN, 0, 0, -1, &op, sizeof op);
table_proc_call(priv);
table_proc_end();
return (priv);
}
static void *
table_proc_open(struct table *table)
{
int sp[2];
struct table_proc_priv *priv;
char *environ_new[2];
struct table_open_params op;
errno = 0;
if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, sp) < 0) {
log_warn("warn: table-proc: socketpair");
return (NULL);
}
priv = xcalloc(1, sizeof(*priv), "table_proc_open");
if ((priv->pid = fork()) == -1) {
log_warn("warn: table-proc: fork");
goto err;
}
if (priv->pid == 0) {
/* child process */
dup2(sp[0], STDIN_FILENO);
if (closefrom(STDERR_FILENO + 1) < 0)
exit(1);
environ_new[0] = "PATH=" _PATH_DEFPATH;
environ_new[1] = (char *)NULL;
environ = environ_new;
execle("/bin/sh", "/bin/sh", "-c", table->t_config, (char *)NULL,
environ_new);
fatal("execl");
}
/* parent process */
close(sp[0]);
imsg_init(&priv->ibuf, sp[1]);
memset(&op, 0, sizeof op);
op.version = PROC_TABLE_API_VERSION;
(void)strlcpy(op.name, table->t_name, sizeof op.name);
imsg_compose(&priv->ibuf, PROC_TABLE_OPEN, 0, 0, -1, &op, sizeof op);
table_proc_call(priv);
table_proc_end();
return (priv);
err:
free(priv);
close(sp[0]);
close(sp[1]);
return (NULL);
}
static int
table_proc_update(struct table *table)
{
struct table_proc_priv *priv = table->t_handle;
int r;
imsg_compose(&priv->ibuf, PROC_TABLE_UPDATE, 0, 0, -1, NULL, 0);
table_proc_call(priv);
table_proc_read(&r, sizeof(r));
table_proc_end();
return (r);
}
static int
table_proc_lookup(void *arg, struct dict *params, const char *k, enum table_service s,
union lookup *lk)
{
struct table_proc_priv *priv = arg;
struct ibuf *buf;
int r;
buf = imsg_create(&priv->ibuf,
lk ? PROC_TABLE_LOOKUP : PROC_TABLE_CHECK, 0, 0,
sizeof(s) + strlen(k) + 1);
if (buf == NULL)
return (-1);
if (imsg_add(buf, &s, sizeof(s)) == -1)
return (-1);
if (imsg_add_params(buf, params) == -1)
return (-1);
if (imsg_add(buf, k, strlen(k) + 1) == -1)
return (-1);
imsg_close(&priv->ibuf, buf);
table_proc_call(priv);
table_proc_read(&r, sizeof(r));
if (r == 1 && lk) {
if (rlen == 0) {
log_warnx("warn: table-proc: empty response");
fatalx("table-proc: exiting");
}
if (rdata[rlen - 1] != '\0') {
log_warnx("warn: table-proc: not NUL-terminated");
fatalx("table-proc: exiting");
}
r = table_parse_lookup(s, k, rdata, lk);
table_proc_read(NULL, rlen);
}
table_proc_end();
return (r);
}
