/* * snmpset.c - send snmp SET requests to a network entity. * */ /*********************************************************************** Copyright 1988, 1989, 1991, 1992 by Carnegie Mellon University All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ #include #if HAVE_STDLIB_H #include #endif #if HAVE_UNISTD_H #include #endif #if HAVE_STRING_H #include #else #include #endif #include #if HAVE_NETINET_IN_H #include #endif #include #include #if TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif #if HAVE_SYS_SELECT_H #include #endif #if HAVE_NETDB_H #include #endif #if HAVE_ARPA_INET_H #include #endif #include void usage(void) { fprintf(stderr, "USAGE: snmpset "); snmp_parse_args_usage(stderr); fprintf(stderr, " OID TYPE VALUE [OID TYPE VALUE]...\n\n"); snmp_parse_args_descriptions(stderr); fprintf(stderr, " -C APPOPTS\t\tSet various application specific behaviours:\n"); fprintf(stderr, "\t\t\t q: don't print results on success\n"); fprintf(stderr, "\n TYPE: one of i, u, t, a, o, s, x, d, b\n"); fprintf(stderr, "\ti: INTEGER, u: unsigned INTEGER, t: TIMETICKS, a: IPADDRESS\n"); fprintf(stderr, "\to: OBJID, s: STRING, x: HEX STRING, d: DECIMAL STRING, b: BITS\n"); #ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES fprintf(stderr, "\tU: unsigned int64, I: signed int64, F: float, D: double\n"); #endif /* NETSNMP_WITH_OPAQUE_SPECIAL_TYPES */ } static int quiet = 0; static void optProc(int argc, char *const *argv, int opt) { switch (opt) { case 'C': while (*optarg) { switch (*optarg++) { case 'q': quiet = 1; break; default: fprintf(stderr, "Unknown flag passed to -C: %c\n", optarg[-1]); exit(1); } } } } int main(int argc, char *argv[]) { netsnmp_session session, *ss; netsnmp_pdu *pdu, *response = NULL; netsnmp_variable_list *vars; int arg; int count; int current_name = 0; int current_type = 0; int current_value = 0; char *names[SNMP_MAX_CMDLINE_OIDS]; char types[SNMP_MAX_CMDLINE_OIDS]; char *values[SNMP_MAX_CMDLINE_OIDS]; oid name[MAX_OID_LEN]; size_t name_length; int status; int failures = 0; int exitval = 1; SOCK_STARTUP; putenv(strdup("POSIXLY_CORRECT=1")); /* * get the common command line arguments */ switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) { case NETSNMP_PARSE_ARGS_ERROR: goto out; case NETSNMP_PARSE_ARGS_SUCCESS_EXIT: exitval = 0; goto out; case NETSNMP_PARSE_ARGS_ERROR_USAGE: usage(); goto out; default: break; } if (arg >= argc) { fprintf(stderr, "Missing object name\n"); usage(); goto out; } if ((argc - arg) > 3*SNMP_MAX_CMDLINE_OIDS) { fprintf(stderr, "Too many assignments specified. "); fprintf(stderr, "Only %d allowed in one request.\n", SNMP_MAX_CMDLINE_OIDS); usage(); goto out; } /* * get object names, types, and values */ for (; arg < argc; arg++) { DEBUGMSGTL(("snmp_parse_args", "handling (#%d): %s %s %s\n", arg,argv[arg], arg+1 < argc ? argv[arg+1] : NULL, arg+2 < argc ? argv[arg+2] : NULL)); names[current_name++] = argv[arg++]; if (arg < argc) { switch (*argv[arg]) { case '=': case 'i': case 'u': case '3': case 't': case 'a': case 'o': case 's': case 'x': case 'd': case 'b': #ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES case 'I': case 'U': case 'F': case 'D': #endif /* NETSNMP_WITH_OPAQUE_SPECIAL_TYPES */ types[current_type++] = *argv[arg++]; break; default: fprintf(stderr, "%s: Bad object type: %c\n", argv[arg - 1], *argv[arg]); goto out; } } else { fprintf(stderr, "%s: Needs type and value\n", argv[arg - 1]); goto out; } if (arg < argc) values[current_value++] = argv[arg]; else { fprintf(stderr, "%s: Needs value\n", argv[arg - 2]); goto out; } } /* * open an SNMP session */ ss = snmp_open(&session); if (ss == NULL) { /* * diagnose snmp_open errors with the input netsnmp_session pointer */ snmp_sess_perror("snmpset", &session); goto out; } /* * create PDU for SET request and add object names and values to request */ pdu = snmp_pdu_create(SNMP_MSG_SET); for (count = 0; count < current_name; count++) { name_length = MAX_OID_LEN; if (snmp_parse_oid(names[count], name, &name_length) == NULL) { snmp_perror(names[count]); failures++; } else if (snmp_add_var (pdu, name, name_length, types[count], values[count])) { snmp_perror(names[count]); failures++; } } if (failures) goto close_session; exitval = 0; /* * do the request */ status = snmp_synch_response(ss, pdu, &response); if (status == STAT_SUCCESS) { if (response->errstat == SNMP_ERR_NOERROR) { if (!quiet) { for (vars = response->variables; vars; vars = vars->next_variable) print_variable(vars->name, vars->name_length, vars); } } else { fprintf(stderr, "Error in packet.\nReason: %s\n", snmp_errstring(response->errstat)); if (response->errindex != 0) { fprintf(stderr, "Failed object: "); for (count = 1, vars = response->variables; vars && (count != response->errindex); vars = vars->next_variable, count++); if (vars) fprint_objid(stderr, vars->name, vars->name_length); fprintf(stderr, "\n"); } exitval = 2; } } else if (status == STAT_TIMEOUT) { fprintf(stderr, "Timeout: No Response from %s\n", session.peername); exitval = 1; } else { /* status == STAT_ERROR */ snmp_sess_perror("snmpset", ss); exitval = 1; } if (response) snmp_free_pdu(response); close_session: snmp_close(ss); out: SOCK_CLEANUP; return exitval; }