int dns_add_search_domain(const char* domain, int index, char** msg)
{
int ret;
char* path;
assert(domain);
assert(index >= 1);
if (domain == NULL || index < 1) {
asprintf(msg, "NULL arguments.");
return EXIT_FAILURE;
}
switch (ret = aug_match(sysaugeas, "/files/"AUGEAS_DNS_CONF"/search/domain", NULL)) {
case -1:
asprintf(msg, "Augeas match for \"%s\" failed: %s", "/files/"AUGEAS_DNS_CONF"/search/domain", aug_error_message(sysaugeas));
return EXIT_FAILURE;
case 0:
/* First domain to be added */
if (index != 1) {
asprintf(msg, "Configuration data (dns-resolver search domains) are inconsistent with system configuration file (code 1).");
return EXIT_FAILURE;
}
break;
default:
/* Some domains already in the config file */
if ((index - ret) > 1) {
asprintf(msg, "Configuration data (dns-resolver search domains) are inconsistent with system configuration file (code 2).");
return EXIT_FAILURE;
}
/* insert new (empty) node */
if (index == 1) {
if (aug_insert(sysaugeas, "/files/"AUGEAS_DNS_CONF"/search/domain[1]", "domain", 1) == -1) {
asprintf(msg, "Inserting DNS search domain configuration before \"%s\" failed (%s)", "/files/"AUGEAS_DNS_CONF"/search/domain[1]", aug_error_message(sysaugeas));
return (EXIT_FAILURE);
}
} else {
asprintf(&path, "/files/%s/search/domain[%d]", AUGEAS_DNS_CONF, index - 1);
if (aug_insert(sysaugeas, path, "domain", 0) == -1) {
asprintf(msg, "Inserting DNS search domain configuration after \"%s\" failed (%s)", path, aug_error_message(sysaugeas));
free(path);
return (EXIT_FAILURE);
}
free(path); path = NULL;
}
}
/* Set the value of the newly inserted node (or possibly create it, too) */
asprintf(&path, "/files/%s/search/domain[%d]", AUGEAS_DNS_CONF, index);
if (aug_set(sysaugeas, path, domain) == -1) {
aug_rm(sysaugeas, path); /* previously inserted, do rollback */
asprintf(msg, "Unable to set DNS search domain \"%s\" (%s).", domain, aug_error_message(sysaugeas));
free(path);
return EXIT_FAILURE;
}
free(path);
return EXIT_SUCCESS;
}
/*
* call-seq:
* insert(PATH, LABEL, BEFORE) -> int
*
* Make LABEL a sibling of PATH by inserting it directly before or after PATH.
* The boolean BEFORE determines if LABEL is inserted before or after PATH.
*/
VALUE augeas_insert(VALUE s, VALUE path, VALUE label, VALUE before) {
augeas *aug = aug_handle(s);
const char *cpath = StringValueCStr(path) ;
const char *clabel = StringValueCStr(label) ;
int callValue = aug_insert(aug, cpath, clabel, RTEST(before));
return INT2FIX(callValue) ;
}
static int Paug_insert(lua_State *L)
{
augeas *a = Paug_checkarg(L, 1);
const char *path = luaL_checkstring(L, 2);
const char *label = luaL_checkstring(L, 3);
int before = lua_toboolean(L, 4);
return pushresult(L, aug_insert(a, path, label, before), a, path);
}
int
do_aug_insert (const char *path, const char *label, int before)
{
#ifdef HAVE_AUGEAS
int r;
NEED_AUG (-1);
r = aug_insert (aug, path, label, before);
if (r == -1) {
reply_with_error ("Augeas insert failed");
return -1;
}
return 0;
#else
NOT_AVAILABLE (-1);
#endif
}