u_char *
var_extensible_pass_persist(struct variable *vp,
oid * name,
size_t * length,
int exact,
size_t * var_len, WriteMethod ** write_method)
{
oid newname[MAX_OID_LEN];
int i, rtest, newlen;
char buf[SNMP_MAXBUF];
static char buf2[SNMP_MAXBUF];
struct extensible *persistpassthru;
FILE *file;
/*
* Make sure that our basic pipe structure is malloced
*/
init_persist_pipes();
for (i = 1; i <= numpersistpassthrus; i++) {
persistpassthru = get_exten_instance(persistpassthrus, i);
rtest = snmp_oidtree_compare(name, *length,
persistpassthru->miboid,
persistpassthru->miblen);
if ((exact && rtest == 0) || (!exact && rtest <= 0)) {
/*
* setup args
*/
if (persistpassthru->miblen >= *length || rtest < 0)
sprint_mib_oid(buf, persistpassthru->miboid,
persistpassthru->miblen);
else
sprint_mib_oid(buf, name, *length);
/*
* Open our pipe if necessary
*/
if (!open_persist_pipe(i, persistpassthru->name)) {
return (NULL);
}
if (exact)
snprintf(persistpassthru->command,
sizeof(persistpassthru->command), "get\n%s\n", buf);
else
snprintf(persistpassthru->command,
sizeof(persistpassthru->command), "getnext\n%s\n", buf);
persistpassthru->command[ sizeof(persistpassthru->command)-1 ] = 0;
DEBUGMSGTL(("ucd-snmp/pass_persist",
"persistpass-sending:\n%s",
persistpassthru->command));
if (!write_persist_pipe(i, persistpassthru->command)) {
*var_len = 0;
/*
* close_persist_pipes is called in write_persist_pipe
*/
return (NULL);
}
/*
* valid call. Exec and get output
*/
if ((file = persist_pipes[i].fIn)) {
if (fgets(buf, sizeof(buf), file) == NULL) {
*var_len = 0;
close_persist_pipe(i);
return (NULL);
}
/*
* persistent scripts return "NONE\n" on invalid items
*/
if (!strncmp(buf, "NONE", 4)) {
if (exact) {
*var_len = 0;
return (NULL);
}
continue;
}
newlen = parse_miboid(buf, newname);
/*
* its good, so copy onto name/length
*/
memcpy((char *) name, (char *) newname,
(int) newlen * sizeof(oid));
*length = newlen;
/*
* set up return pointer for setable stuff
*/
*write_method = setPassPersist;
if (newlen == 0 || fgets(buf, sizeof(buf), file) == NULL
|| fgets(buf2, sizeof(buf2), file) == NULL) {
*var_len = 0;
close_persist_pipe(i);
return (NULL);
}
return netsnmp_internal_pass_parse(buf, buf2, var_len, vp);
}
*var_len = 0;
return (NULL);
}
}
if (var_len)
*var_len = 0;
*write_method = NULL;
return (NULL);
}
u_char *
var_extensible_pass(struct variable *vp,
oid * name,
size_t * length,
int exact,
size_t * var_len, WriteMethod ** write_method)
{
oid newname[MAX_OID_LEN];
int i, rtest, fd, newlen;
char buf[SNMP_MAXBUF];
static char buf2[SNMP_MAXBUF];
struct extensible *passthru;
FILE *file;
for (i = 1; i <= numpassthrus; i++) {
passthru = get_exten_instance(passthrus, i);
rtest = snmp_oidtree_compare(name, *length,
passthru->miboid, passthru->miblen);
if ((exact && rtest == 0) || (!exact && rtest <= 0)) {
/*
* setup args
*/
if (passthru->miblen >= *length || rtest < 0)
sprint_mib_oid(buf, passthru->miboid, passthru->miblen);
else
sprint_mib_oid(buf, name, *length);
if (exact)
snprintf(passthru->command, sizeof(passthru->command),
"%s -g %s", passthru->name, buf);
else
snprintf(passthru->command, sizeof(passthru->command),
"%s -n %s", passthru->name, buf);
passthru->command[ sizeof(passthru->command)-1 ] = 0;
DEBUGMSGTL(("ucd-snmp/pass", "pass-running: %s\n",
passthru->command));
/*
* valid call. Exec and get output
*/
if ((fd = get_exec_output(passthru)) != -1) {
file = fdopen(fd, "r");
if (fgets(buf, sizeof(buf), file) == NULL) {
fclose(file);
wait_on_exec(passthru);
if (exact) {
/*
* to enable creation
*/
*write_method = setPass;
*var_len = 0;
return (NULL);
}
continue;
}
newlen = parse_miboid(buf, newname);
/*
* its good, so copy onto name/length
*/
memcpy((char *) name, (char *) newname,
(int) newlen * sizeof(oid));
*length = newlen;
/*
* set up return pointer for setable stuff
*/
*write_method = setPass;
if (newlen == 0 || fgets(buf, sizeof(buf), file) == NULL
|| fgets(buf2, sizeof(buf2), file) == NULL) {
*var_len = 0;
fclose(file);
wait_on_exec(passthru);
return (NULL);
}
fclose(file);
wait_on_exec(passthru);
return netsnmp_internal_pass_parse(buf, buf2, var_len, vp);
}
*var_len = 0;
return (NULL);
}
}
if (var_len)
*var_len = 0;
*write_method = NULL;
return (NULL);
}
