diff options
Diffstat (limited to 'sdk/net/snmptrap.c')
| -rw-r--r-- | sdk/net/snmptrap.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sdk/net/snmptrap.c b/sdk/net/snmptrap.c new file mode 100644 index 0000000..17c9f7c --- /dev/null +++ b/sdk/net/snmptrap.c @@ -0,0 +1,165 @@ +/* + * Generic snmp trap generation routine. + * $Id$ + * Copyright (c) 1997 by Tycho Softworks. + * For conditions of distribution and reuse see product license. + */ + +#include <net/trap.h> +#include <std/string.h> + +int snmptrap(char *host, char *agent, char *community, int id, char *enterprise, char *describe, long ut) +{ + static uchar sysvar[] = {0x06, 0x08, 0x2b, 0x06, 0x01, 0x02, 0x01, 0x01, 0x01, 0x00, 0x04}; + + uchar pkt[256] = {0x30, 0x82, 0x00, 0x00, 0x02, 0x01, 0x00, 0x04}; + char console[129]; + int len; + int pos; + int l1 = 45; + int l2 = 39; + int l3 = 16; + int l2pos; + int l3pos; + int v1; + char *p; + int v2; + ulong hostip; + struct hostent *hp; + struct sockaddr_in target; + struct in_addr *aptr; + int i1, i2; + SOCKET so; + + if(!describe) + describe = ""; + + if(!host) + host = "localhost"; + + if(!agent) + agent = "localhost"; + + hp = gethost(agent); + if(!hp) + return -1; + + while( (aptr = (struct in_addr *)*(hp->h_addr_list)++) != NULL) + memcpy(&hostip, aptr, 4); + + if(!community) + community = "PUBLIC"; + + if(!enterprise) + enterprise = "1.3.6.1.4.1.3.1.1"; + + + so = socket(AF_INET, SOCK_DGRAM, 0); + if(so == INVALID_SOCKET) + return -1; + + len = strlen(community); + l1 = l1 + len + 1; + pkt[8] = (uchar)len; + strcpy((char *)pkt + 9, community); + pos = 9 + len; + pkt[pos++] = 0xa4; + l2pos = pos++; + pkt[pos++] = 0x06; + len = 0; + + v1 = atoi(enterprise); + enterprise = strchr(enterprise, '.'); + v2 = atoi(++enterprise); + len = 1; + pkt[pos + len] = (uchar)(v1 * 40 + v2); + + while(NULL !=(enterprise = strchr(enterprise, '.'))) + pkt[pos + (++len)] = (uchar)atoi(++enterprise); + + pkt[pos] = len; + pos += len + 1; + l1 += len; + l2 += len; + + pkt[pos++] = 0x40; + pkt[pos++] = 0x04; + memcpy(pkt + pos, &hostip, 4); + pos += 4; + + i2 = 0; + i1 = id; + if(id > 5 || id < 0) + { + i1 = 6; + i2 = abs(id); + } + + pkt[pos++] = 0x02; + pkt[pos++] = 0x01; + pkt[pos++] = (uchar)i1; + pkt[pos++] = 0x02; + if(i2 > -1 && i2 < 128) + { + pkt[pos++] = 0x01; + pkt[pos++] = (uchar)i2; + } + else + { + pkt[pos++] = 0x02; + pkt[pos++] = (uchar)(i2 / 256); + pkt[pos++] = (uchar)(i2 % 256); + ++l1; + ++l2; + } + pkt[pos++] = 0x43; + pkt[pos++] = 0x03; + pkt[pos++] = (uchar)((ut / 0x10000) % 256); + pkt[pos++] = (uchar)((ut / 0x100) % 256); + pkt[pos++] = (uchar)(ut % 256); + pkt[pos++] = 0x30; + pkt[pos++] = 0x82; + pkt[pos++] = 0; + l3pos = pos++; + + len = strlen(describe); + pkt[pos++] = 0x30; + pkt[pos++] = 0x82; + pkt[pos++] = 0x00; + pkt[pos++] = len + 12; + memcpy(pkt + pos, sysvar, 11); + pos += 11; + pkt[pos++] = (uchar)len; + strcpy((char *)pkt + pos, describe); + + l1 += len; + l2 += len; + l3 += len; + pos += len; + + pkt[2] = (uchar)(l1 / 256); + pkt[3] = (uchar)(l1 % 256); + pkt[l2pos] = (uchar)l2; + pkt[l3pos] = (uchar)l3; + + + strcpy(console, host); + host = strtok(console, ":\t; \t\n"); + while(NULL != host) + { + hp = gethost(host); + if(!hp) + return -1; + + while( (aptr = (struct in_addr *)*(hp->h_addr_list)++) != NULL) + target.sin_addr = *aptr; + + target.sin_family = hp->h_addrtype; + target.sin_port = htons(SNMP_TRAP_PORT); + host = strtok(NULL, ":\t;"); + sendto(so, pkt, pos, 0, (struct sockaddr *)&target, sizeof(struct sockaddr)); + } + endsocket(so); + return 0; +} + |