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#include <net-snmp/net-snmp-config.h>
#include <ctype.h>
#if HAVE_STDDEF_H
#include <stddef.h>
#endif
#include <stdio.h>
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "mibgroup/util_funcs.h"
#include "pass_common.h"
static int
netsnmp_internal_asc2bin(char *p)
{
char *r, *q = p;
char c;
int n = 0;
for (;;) {
c = (char) strtol(q, &r, 16);
if (r == q)
break;
*p++ = c;
q = r;
n++;
}
return n;
}
static int
netsnmp_internal_bin2asc(char *p, size_t n)
{
int i, flag = 0;
char buffer[SNMP_MAXBUF];
/* prevent buffer overflow */
if ((int)n > (sizeof(buffer) - 1))
n = sizeof(buffer) - 1;
for (i = 0; i < (int) n; i++) {
buffer[i] = p[i];
if (!isprint((unsigned char) (p[i])))
flag = 1;
}
if (flag == 0) {
p[n] = 0;
return n;
}
for (i = 0; i < (int) n; i++) {
sprintf(p, "%02x ", (unsigned char) (buffer[i] & 0xff));
p += 3;
}
*--p = 0;
return 3 * n - 1;
}
int
netsnmp_internal_pass_str_to_errno(const char *buf)
{
if (!strncasecmp(buf, "too-big", 7)) {
/* Shouldn't happen */
return SNMP_ERR_TOOBIG;
} else if (!strncasecmp(buf, "no-such-name", 12)) {
return SNMP_ERR_NOSUCHNAME;
} else if (!strncasecmp(buf, "bad-value", 9)) {
return SNMP_ERR_BADVALUE;
} else if (!strncasecmp(buf, "read-only", 9)) {
return SNMP_ERR_READONLY;
} else if (!strncasecmp(buf, "gen-error", 9)) {
return SNMP_ERR_GENERR;
} else if (!strncasecmp(buf, "no-access", 9)) {
return SNMP_ERR_NOACCESS;
} else if (!strncasecmp(buf, "wrong-type", 10)) {
return SNMP_ERR_WRONGTYPE;
} else if (!strncasecmp(buf, "wrong-length", 12)) {
return SNMP_ERR_WRONGLENGTH;
} else if (!strncasecmp(buf, "wrong-encoding", 14)) {
return SNMP_ERR_WRONGENCODING;
} else if (!strncasecmp(buf, "wrong-value", 11)) {
return SNMP_ERR_WRONGVALUE;
} else if (!strncasecmp(buf, "no-creation", 11)) {
return SNMP_ERR_NOCREATION;
} else if (!strncasecmp(buf, "inconsistent-value", 18)) {
return SNMP_ERR_INCONSISTENTVALUE;
} else if (!strncasecmp(buf, "resource-unavailable", 20)) {
return SNMP_ERR_RESOURCEUNAVAILABLE;
} else if (!strncasecmp(buf, "commit-failed", 13)) {
return SNMP_ERR_COMMITFAILED;
} else if (!strncasecmp(buf, "undo-failed", 11)) {
return SNMP_ERR_UNDOFAILED;
} else if (!strncasecmp(buf, "authorization-error", 19)) {
return SNMP_ERR_AUTHORIZATIONERROR;
} else if (!strncasecmp(buf, "not-writable", 12)) {
return SNMP_ERR_NOTWRITABLE;
} else if (!strncasecmp(buf, "inconsistent-name", 17)) {
return SNMP_ERR_INCONSISTENTNAME;
}
return SNMP_ERR_NOERROR;
}
unsigned char *
netsnmp_internal_pass_parse(char * buf,
char * buf2,
size_t * var_len,
struct variable *vp)
{
static long long_ret;
static in_addr_t addr_ret;
int newlen;
static oid objid[MAX_OID_LEN];
/*
* buf contains the return type, and buf2 contains the data
*/
if (!strncasecmp(buf, "string", 6)) {
buf2[strlen(buf2) - 1] = 0; /* zap the linefeed */
*var_len = strlen(buf2);
vp->type = ASN_OCTET_STR;
return ((unsigned char *) buf2);
}
#ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES
else if (!strncasecmp(buf, "integer64", 9)) {
static struct counter64 c64;
uint64_t v64 = strtoull(buf2, NULL, 10);
c64.high = (unsigned long)(v64 >> 32);
c64.low = (unsigned long)(v64 & 0xffffffff);
*var_len = sizeof(c64);
vp->type = ASN_INTEGER64;
return ((unsigned char *) &c64);
}
#endif
else if (!strncasecmp(buf, "integer", 7)) {
*var_len = sizeof(long_ret);
long_ret = strtol(buf2, NULL, 10);
vp->type = ASN_INTEGER;
return ((unsigned char *) &long_ret);
} else if (!strncasecmp(buf, "unsigned", 8)) {
*var_len = sizeof(long_ret);
long_ret = strtoul(buf2, NULL, 10);
vp->type = ASN_UNSIGNED;
return ((unsigned char *) &long_ret);
}
else if (!strncasecmp(buf, "counter64", 9)) {
static struct counter64 c64;
uint64_t v64 = strtoull(buf2, NULL, 10);
c64.high = (unsigned long)(v64 >> 32);
c64.low = (unsigned long)(v64 & 0xffffffff);
*var_len = sizeof(c64);
vp->type = ASN_COUNTER64;
return ((unsigned char *) &c64);
}
else if (!strncasecmp(buf, "counter", 7)) {
*var_len = sizeof(long_ret);
long_ret = strtoul(buf2, NULL, 10);
vp->type = ASN_COUNTER;
return ((unsigned char *) &long_ret);
} else if (!strncasecmp(buf, "octet", 5)) {
*var_len = netsnmp_internal_asc2bin(buf2);
vp->type = ASN_OCTET_STR;
return ((unsigned char *) buf2);
} else if (!strncasecmp(buf, "opaque", 6)) {
*var_len = netsnmp_internal_asc2bin(buf2);
vp->type = ASN_OPAQUE;
return ((unsigned char *) buf2);
} else if (!strncasecmp(buf, "gauge", 5)) {
*var_len = sizeof(long_ret);
long_ret = strtoul(buf2, NULL, 10);
vp->type = ASN_GAUGE;
return ((unsigned char *) &long_ret);
} else if (!strncasecmp(buf, "objectid", 8)) {
newlen = parse_miboid(buf2, objid);
*var_len = newlen * sizeof(oid);
vp->type = ASN_OBJECT_ID;
return ((unsigned char *) objid);
} else if (!strncasecmp(buf, "timetick", 8)) {
*var_len = sizeof(long_ret);
long_ret = strtoul(buf2, NULL, 10);
vp->type = ASN_TIMETICKS;
return ((unsigned char *) &long_ret);
} else if (!strncasecmp(buf, "ipaddress", 9)) {
newlen = parse_miboid(buf2, objid);
if (newlen != 4) {
snmp_log(LOG_ERR, "invalid ipaddress returned: %s\n", buf2);
*var_len = 0;
return (NULL);
}
addr_ret =
(objid[0] << (8 * 3)) + (objid[1] << (8 * 2)) +
(objid[2] << 8) + objid[3];
addr_ret = htonl(addr_ret);
*var_len = sizeof(addr_ret);
vp->type = ASN_IPADDRESS;
return ((unsigned char *) &addr_ret);
}
*var_len = 0;
return (NULL);
}
void
netsnmp_internal_pass_set_format(char *buf,
const u_char *var_val,
u_char var_val_type,
size_t var_val_len)
{
char buf2[SNMP_MAXBUF];
long tmp;
unsigned long utmp;
switch (var_val_type) {
case ASN_INTEGER:
case ASN_COUNTER:
case ASN_GAUGE:
case ASN_TIMETICKS:
tmp = *((const long *) var_val);
switch (var_val_type) {
case ASN_INTEGER:
sprintf(buf, "integer %d\n", (int) tmp);
break;
case ASN_COUNTER:
sprintf(buf, "counter %d\n", (int) tmp);
break;
case ASN_GAUGE:
sprintf(buf, "gauge %d\n", (int) tmp);
break;
case ASN_TIMETICKS:
sprintf(buf, "timeticks %d\n", (int) tmp);
break;
}
break;
case ASN_IPADDRESS:
utmp = *((const u_long *) var_val);
utmp = ntohl(utmp);
sprintf(buf, "ipaddress %d.%d.%d.%d\n",
(int) ((utmp & 0xff000000) >> (8 * 3)),
(int) ((utmp & 0xff0000) >> (8 * 2)),
(int) ((utmp & 0xff00) >> (8)),
(int) ((utmp & 0xff)));
break;
case ASN_OCTET_STR:
memcpy(buf2, var_val, var_val_len);
if (var_val_len == 0)
sprintf(buf, "string \"\"\n");
else if (netsnmp_internal_bin2asc(buf2, var_val_len) ==
(int) var_val_len)
snprintf(buf, sizeof(buf), "string \"%s\"\n", buf2);
else
snprintf(buf, sizeof(buf), "octet \"%s\"\n", buf2);
buf[ sizeof(buf)-1 ] = 0;
break;
case ASN_OBJECT_ID:
sprint_mib_oid(buf2, (const oid *) var_val, var_val_len/sizeof(oid));
snprintf(buf, sizeof(buf), "objectid \"%s\"\n", buf2);
buf[ sizeof(buf)-1 ] = 0;
break;
}
}
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