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#ifdef HAVE_XENSTORE
#include <stdio.h>
#include <stdlib.h>
#include <xs.h>
#include "xs_tools.h"
/* ------------------------------------------------------------- */
struct xs_handle *xenstore_open(int daemon, int domain,
int readonly_ok, int verbose)
{
struct xs_handle *xenstore = NULL;
if (NULL == xenstore && daemon && readonly_ok) {
xenstore = xs_daemon_open_readonly();
if (NULL == xenstore)
fprintf(stderr,"can't connect to %s\n",xs_daemon_socket_ro());
else
if (verbose)
printf("connected to %s\n", xs_daemon_socket_ro());
}
if (NULL == xenstore && daemon) {
xenstore = xs_daemon_open();
if (NULL == xenstore)
fprintf(stderr,"can't connect to %s\n",xs_daemon_socket());
else
if (verbose)
printf("connected to %s\n", xs_daemon_socket());
}
if (NULL == xenstore && domain) {
xenstore = xs_domain_open();
if (NULL == xenstore)
fprintf(stderr, "can't connect to %s\n", xs_domain_dev());
else
if (verbose)
printf("connected to %s\n", xs_domain_dev());
}
return xenstore;
}
int xenstore_read(struct xs_handle *xenstore, char *path, char *dst, size_t size)
{
xs_transaction_t xst;
char *xs_value = NULL;
xst = xs_transaction_start(xenstore);
if (!xst)
return -1;
xs_value = xs_read(xenstore, xst, path, NULL);
xs_transaction_end(xenstore, xst, 0);
if (NULL == xs_value)
return -2;
snprintf(dst, size, "%s", xs_value);
free(xs_value);
return 0;
}
#endif /* HAVE_XENSTORE */
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