release/src/router/snmp/apps/snmpset.c

   1 /*
   2  * snmpset.c - send snmp SET requests to a network entity.
   3  *
   4  */
   5 /***********************************************************************
   6         Copyright 1988, 1989, 1991, 1992 by Carnegie Mellon University
   7
   8                       All Rights Reserved
   9
  10 Permission to use, copy, modify, and distribute this software and its
  11 documentation for any purpose and without fee is hereby granted,
  12 provided that the above copyright notice appear in all copies and that
  13 both that copyright notice and this permission notice appear in
  14 supporting documentation, and that the name of CMU not be
  15 used in advertising or publicity pertaining to distribution of the
  16 software without specific, written prior permission.
  17
  18 CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  19 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  20 CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  21 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  22 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  23 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  24 SOFTWARE.
  25 ******************************************************************/
  26 #include <net-snmp/net-snmp-config.h>
  27
  28 #if HAVE_STDLIB_H
  29 #include <stdlib.h>
  30 #endif
  31 #if HAVE_UNISTD_H
  32 #include <unistd.h>
  33 #endif
  34 #if HAVE_STRING_H
  35 #include <string.h>
  36 #else
  37 #include <strings.h>
  38 #endif
  39 #include <sys/types.h>
  40 #if HAVE_NETINET_IN_H
  41 #include <netinet/in.h>
  42 #endif
  43 #include <stdio.h>
  44 #include <ctype.h>
  45 #if TIME_WITH_SYS_TIME
  46 # ifdef WIN32
  47 #  include <sys/timeb.h>
  48 # else
  49 #  include <sys/time.h>
  50 # endif
  51 # include <time.h>
  52 #else
  53 # if HAVE_SYS_TIME_H
  54 #  include <sys/time.h>
  55 # else
  56 #  include <time.h>
  57 # endif
  58 #endif
  59 #if HAVE_SYS_SELECT_H
  60 #include <sys/select.h>
  61 #endif
  62 #if HAVE_WINSOCK_H
  63 #include <winsock.h>
  64 #endif
  65 #if HAVE_NETDB_H
  66 #include <netdb.h>
  67 #endif
  68 #if HAVE_ARPA_INET_H
  69 #include <arpa/inet.h>
  70 #endif
  71
  72 #include <net-snmp/net-snmp-includes.h>
  73
  74 int             failures = 0;
  75
  76 void
  77 usage(void)
  78 {
  79     fprintf(stderr, "USAGE: snmpset ");
  80     snmp_parse_args_usage(stderr);
  81     fprintf(stderr, " OID TYPE VALUE [OID TYPE VALUE]...\n\n");
  82     snmp_parse_args_descriptions(stderr);
  83     fprintf(stderr,
  84             "  -C APPOPTS\t\tSet various application specific behaviours:\n");
  85     fprintf(stderr, "\t\t\t  q:  don't print results on success\n");
  86     fprintf(stderr, "\n  TYPE: one of i, u, t, a, o, s, x, d, b, n\n");
  87     fprintf(stderr,
  88             "\ti: INTEGER, u: unsigned INTEGER, t: TIMETICKS, a: IPADDRESS\n");
  89     fprintf(stderr,
  90             "\to: OBJID, s: STRING, x: HEX STRING, d: DECIMAL STRING, b: BITS\n");
  91 #ifdef OPAQUE_SPECIAL_TYPES
  92     fprintf(stderr,
  93             "\tU: unsigned int64, I: signed int64, F: float, D: double\n");
  94 #endif                          /* OPAQUE_SPECIAL_TYPES */
  95
  96 }
  97
  98 static int quiet = 0;
  99
 100 static
 101     void
 102 optProc(int argc, char *const *argv, int opt)
 103 {
 104     switch (opt) {
 105     case 'C':
 106         while (*optarg) {
 107             switch (*optarg++) {
 108             case 'q':
 109                 quiet = 1;
 110                 break;
 111
 112             default:
 113                 fprintf(stderr, "Unknown flag passed to -C: %c\n",
 114                         optarg[-1]);
 115                 exit(1);
 116             }
 117         }
 118     }
 119 }
 120
 121 int
 122 main(int argc, char *argv[])
 123 {
 124     netsnmp_session session, *ss;
 125     netsnmp_pdu    *pdu, *response = NULL;
 126     netsnmp_variable_list *vars;
 127     int             arg;
 128     int             count;
 129     int             current_name = 0;
 130     int             current_type = 0;
 131     int             current_value = 0;
 132     char           *names[128];
 133     char            types[128];
 134     char           *values[128];
 135     oid             name[MAX_OID_LEN];
 136     size_t          name_length;
 137     int             status;
 138     int             exitval = 0;
 139
 140     putenv(strdup("POSIXLY_CORRECT=1"));
 141
 142     /*
 143      * get the common command line arguments
 144      */
 145     switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
 146     case -2:
 147         exit(0);
 148     case -1:
 149         usage();
 150         exit(1);
 151     default:
 152         break;
 153     }
 154
 155     if (arg >= argc) {
 156         fprintf(stderr, "Missing object name\n");
 157         usage();
 158         exit(1);
 159     }
 160
 161     /*
 162      * get object names, types, and values
 163      */
 164     for (; arg < argc; arg++) {
 165         DEBUGMSGTL(("snmp_parse_args", "handling (#%d): %s %s %s\n",
 166                     arg,argv[arg], arg+1 < argc ? argv[arg+1] : NULL,
 167                     arg+2 < argc ? argv[arg+2] : NULL));
 168         names[current_name++] = argv[arg++];
 169         if (arg < argc) {
 170             switch (*argv[arg]) {
 171             case '=':
 172             case 'i':
 173             case 'u':
 174             case 't':
 175             case 'a':
 176             case 'o':
 177             case 's':
 178             case 'x':
 179             case 'd':
 180             case 'b':
 181 #ifdef OPAQUE_SPECIAL_TYPES
 182             case 'I':
 183             case 'U':
 184             case 'F':
 185             case 'D':
 186 #endif                          /* OPAQUE_SPECIAL_TYPES */
 187                 types[current_type++] = *argv[arg++];
 188                 break;
 189             default:
 190                 fprintf(stderr, "%s: Bad object type: %c\n", argv[arg - 1],
 191                         *argv[arg]);
 192                 exit(1);
 193             }
 194         } else {
 195             fprintf(stderr, "%s: Needs type and value\n", argv[arg - 1]);
 196             exit(1);
 197         }
 198         if (arg < argc)
 199             values[current_value++] = argv[arg];
 200         else {
 201             fprintf(stderr, "%s: Needs value\n", argv[arg - 2]);
 202             exit(1);
 203         }
 204     }
 205
 206     SOCK_STARTUP;
 207
 208     /*
 209      * open an SNMP session
 210      */
 211     ss = snmp_open(&session);
 212     if (ss == NULL) {
 213         /*
 214          * diagnose snmp_open errors with the input netsnmp_session pointer
 215          */
 216         snmp_sess_perror("snmpset", &session);
 217         SOCK_CLEANUP;
 218         exit(1);
 219     }
 220
 221     /*
 222      * create PDU for SET request and add object names and values to request
 223      */
 224     pdu = snmp_pdu_create(SNMP_MSG_SET);
 225     for (count = 0; count < current_name; count++) {
 226         name_length = MAX_OID_LEN;
 227         if (snmp_parse_oid(names[count], name, &name_length) == NULL) {
 228             snmp_perror(names[count]);
 229             failures++;
 230         } else
 231             if (snmp_add_var
 232                 (pdu, name, name_length, types[count], values[count])) {
 233             snmp_perror(names[count]);
 234             failures++;
 235         }
 236     }
 237
 238     if (failures) {
 239         SOCK_CLEANUP;
 240         exit(1);
 241     }
 242
 243     /*
 244      * do the request
 245      */
 246     status = snmp_synch_response(ss, pdu, &response);
 247     if (status == STAT_SUCCESS) {
 248         if (response->errstat == SNMP_ERR_NOERROR) {
 249             if (!quiet) {
 250                 for (vars = response->variables; vars;
 251                      vars = vars->next_variable)
 252                     print_variable(vars->name, vars->name_length, vars);
 253             }
 254         } else {
 255             fprintf(stderr, "Error in packet.\nReason: %s\n",
 256                     snmp_errstring(response->errstat));
 257             if (response->errindex != 0) {
 258                 fprintf(stderr, "Failed object: ");
 259                 for (count = 1, vars = response->variables;
 260                      vars && (count != response->errindex);
 261                      vars = vars->next_variable, count++);
 262                 if (vars)
 263                     fprint_objid(stderr, vars->name, vars->name_length);
 264                 fprintf(stderr, "\n");
 265             }
 266             exitval = 2;
 267         }
 268     } else if (status == STAT_TIMEOUT) {
 269         fprintf(stderr, "Timeout: No Response from %s\n",
 270                 session.peername);
 271         exitval = 1;
 272     } else {                    /* status == STAT_ERROR */
 273         snmp_sess_perror("snmpset", ss);
 274         exitval = 1;
 275     }
 276
 277     if (response)
 278         snmp_free_pdu(response);
 279     snmp_close(ss);
 280     SOCK_CLEANUP;
 281     return exitval;
 282 }