versioninfo.c

Snmp（简单网管协议）软件包。

#include <config.h>

#include <sys/types.h>
#if TIME_WITH_SYS_TIME
# ifdef WIN32
#  include <sys/timeb.h>
# else
#  include <sys/time.h>
# endif
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_WINSOCK_H
#include <winsock.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#endif

#include "mibincl.h"
#include "struct.h"
#include "versioninfo.h"
#include "util_funcs.h"
#include "read_config.h"
#include "agent_read_config.h"
#include "system.h"

#include "version.h"

void init_versioninfo(void) 
{

/* define the structure we're going to ask the agent to register our
   information at */
  struct variable2 extensible_version_variables[] = {
    {MIBINDEX, ASN_INTEGER, RONLY, var_extensible_version, 1, {MIBINDEX}},
    {VERTAG, ASN_OCTET_STR, RONLY, var_extensible_version, 1, {VERTAG}},
    {VERDATE, ASN_OCTET_STR, RONLY, var_extensible_version, 1, {VERDATE}},
    {VERCDATE, ASN_OCTET_STR, RONLY, var_extensible_version, 1, {VERCDATE}},
    {VERIDENT, ASN_OCTET_STR, RONLY, var_extensible_version, 1, {VERIDENT}},
    {VERCONFIG, ASN_OCTET_STR, RONLY, var_extensible_version, 1, {VERCONFIG}},
    {VERCLEARCACHE, ASN_INTEGER, RWRITE, var_extensible_version, 1, {VERCLEARCACHE}},
    {VERUPDATECONFIG, ASN_INTEGER, RWRITE, var_extensible_version, 1, {VERUPDATECONFIG}},
    {VERRESTARTAGENT, ASN_INTEGER, RWRITE, var_extensible_version, 1, {VERRESTARTAGENT}},
    {VERDEBUGGING, ASN_INTEGER, RWRITE, var_extensible_version, 1, {VERDEBUGGING}}
  };

  /* Define the OID pointer to the top of the mib tree that we're
   registering underneath */
  oid version_variables_oid[] = { EXTENSIBLEMIB,VERSIONMIBNUM };

  /* register ourselves with the agent to handle our mib tree */
  REGISTER_MIB("ucd-snmp/versioninfo", extensible_version_variables,
               variable2, version_variables_oid);
  
}


u_char *var_extensible_version(struct variable *vp,
				      oid *name,
				      size_t *length,
				      int exact,
				      size_t *var_len,
				      WriteMethod **write_method)
{

  static long long_ret;
  static char errmsg[300];
  char *cptr;
  time_t curtime;
#ifdef CONFIGURE_OPTIONS
  static char config_opts[] = CONFIGURE_OPTIONS;
#endif

    DEBUGMSGTL(("ucd-snmp/versioninfo", "var_extensible_version: "));
    DEBUGMSGOID(("ucd-snmp/versioninfo", name, *length));
    DEBUGMSG(("ucd-snmp/versioninfo"," %d\n", exact));

  if (header_generic(vp,name,length,exact,var_len,write_method))
    return(NULL);
  
  switch (vp->magic) {
    case MIBINDEX:
      long_ret = name[8];
      return((u_char *) (&long_ret));
    case VERTAG:
      sprintf(errmsg,VersionInfo);
      *var_len = strlen(errmsg);
      return((u_char *) errmsg); 
    case VERDATE:
      sprintf(errmsg,"$Date: 2001/04/04 13:51:18 $");
      *var_len = strlen(errmsg);
      return((u_char *) errmsg); 
    case VERCDATE:
      curtime = time(NULL);
      cptr = ctime(&curtime);
      sprintf(errmsg,cptr);
      *var_len = strlen(errmsg)-1;
      return((u_char *) errmsg);
    case VERIDENT:
      sprintf(errmsg,"$Id: versioninfo.c,v 1.21.2.1 2001/04/04 13:51:18 dts12 Exp $");
      *var_len = strlen(errmsg);
      return((u_char *) errmsg);
    case VERCONFIG:
#ifdef CONFIGURE_OPTIONS
      *var_len = strlen(config_opts);
      return (u_char *) config_opts;
#else
      sprintf(errmsg,"");
      *var_len = strlen(errmsg);
      return((u_char *) errmsg);
#endif
    case VERCLEARCACHE:
      *write_method = clear_cache;
      long_ret = 0;
      return((u_char *) &long_ret);
    case VERUPDATECONFIG:
      *write_method = update_hook;
      long_ret = 0;
      return((u_char *) &long_ret);
    case VERRESTARTAGENT:
      *write_method = restart_hook;
      long_ret = 0;
      return((u_char *) &long_ret);
    case VERDEBUGGING:
      *write_method = debugging_hook;
      long_ret = snmp_get_do_debugging();
      return((u_char *) &long_ret);
  }      
  return NULL;
}

int
update_hook(int action,
	    u_char *var_val,
	    u_char var_val_type,
	    size_t var_val_len,
	    u_char *statP,
	    oid *name,
	    size_t name_len)
{
  long tmp=0;

  if (var_val_type != ASN_INTEGER) {
    snmp_log(LOG_ERR, "Wrong type != int\n");
    return SNMP_ERR_WRONGTYPE;
  }
  tmp = *((long *) var_val);
  if (tmp == 1 && action == COMMIT) {
    update_config();
  } 
  return SNMP_ERR_NOERROR;
}

int
debugging_hook(int action,
	       u_char *var_val,
	       u_char var_val_type,
	       size_t var_val_len,
	       u_char *statP,
	       oid *name,
	       size_t name_len)
{
  long tmp=0;

  if (var_val_type != ASN_INTEGER) {
    DEBUGMSGTL(("versioninfo", "Wrong type != int\n"));
    return SNMP_ERR_WRONGTYPE;
  }
  tmp = *((long *) var_val);
  if (action == COMMIT) {
    snmp_set_do_debugging(tmp);
  } 
  return SNMP_ERR_NOERROR;
}