nasl_snmp.c File Reference

Implementation of an API for SNMP used by NASL scripts. More...

#include "nasl_snmp.h"
#include "../misc/plugutils.h"
#include "nasl_lex_ctxt.h"
#include <assert.h>
#include <errno.h>
#include <gvm/base/logging.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

Include dependency graph for nasl_snmp.c:

Go to the source code of this file.

Data Structures
struct	snmpv1v2_request
	SNMP Request struct for snmp v1 and v2c. More...
struct	snmpv3_request
	SNMP Request struct for snmp v3. More...
struct	snmp_result

Macros
#define	G_LOG_DOMAIN   "lib nasl"
	GLib logging domain. More...
#define	SNMP_VERSION_1   0
	SNMP V1. More...
#define	SNMP_VERSION_2c   1
	SNMP V2c. More...
#define	FD_STDERR_FLAG   1
#define	FD_STDOUT_FLAG   0
#define	NASL_SNMP_GET   0
#define	NASL_SNMP_GETNEXT   1

Typedefs
typedef struct snmpv1v2_request *	snmpv1v2_request_t
typedef struct snmpv3_request *	snmpv3_request_t
typedef struct snmp_result *	snmp_result_t

Functions
static void	destroy_snmp_result (snmp_result_t result)
static int	proto_is_valid (const char *proto)
static tree_cell *	array_from_snmp_result (int ret, const snmp_result_t result)
static tree_cell *	array_from_snmp_error (int ret, const char *err)
static void	parse_snmp_error (snmp_result_t result)
	Parse the snmp error. More...
static int	check_spwan_output (int fd, snmp_result_t result, int fd_flag)
	Read data from a file descriptor. More...
static int	snmpv1v2c_get (const snmpv1v2_request_t request, snmp_result_t result)
	SNMP v1 or v2c Get query value. snmpget cmd wrapper. More...
static int	snmpv3_get (const snmpv3_request_t request, snmp_result_t result)
	SNMPv3 Get query value. snmpget cmd wrapper. More...
static tree_cell *	nasl_snmpv1v2c_get (lex_ctxt *lexic, int version, u_char action)
tree_cell *	nasl_snmpv1_get (lex_ctxt *lexic)
tree_cell *	nasl_snmpv1_getnext (lex_ctxt *lexic)
tree_cell *	nasl_snmpv2c_get (lex_ctxt *lexic)
tree_cell *	nasl_snmpv2c_getnext (lex_ctxt *lexic)
static tree_cell *	nasl_snmpv3_get_action (lex_ctxt *lexic, u_char action)
tree_cell *	nasl_snmpv3_get (lex_ctxt *lexic)
tree_cell *	nasl_snmpv3_getnext (lex_ctxt *lexic)

Detailed Description

Implementation of an API for SNMP used by NASL scripts.

Definition in file nasl_snmp.c.

Macro Definition Documentation

FD_STDERR_FLAG

#define FD_STDERR_FLAG   1

Definition at line 40 of file nasl_snmp.c.

FD_STDOUT_FLAG

#define FD_STDOUT_FLAG   0

Definition at line 41 of file nasl_snmp.c.

G_LOG_DOMAIN

#define G_LOG_DOMAIN   "lib nasl"

GLib logging domain.

Definition at line 28 of file nasl_snmp.c.

NASL_SNMP_GET

#define NASL_SNMP_GET   0

Definition at line 358 of file nasl_snmp.c.

NASL_SNMP_GETNEXT

#define NASL_SNMP_GETNEXT   1

Definition at line 359 of file nasl_snmp.c.

SNMP_VERSION_1

#define SNMP_VERSION_1   0

SNMP V1.

Definition at line 33 of file nasl_snmp.c.

SNMP_VERSION_2c

#define SNMP_VERSION_2c   1

SNMP V2c.

Definition at line 38 of file nasl_snmp.c.

Typedef Documentation

snmp_result_t

typedef struct snmp_result* snmp_result_t

Definition at line 80 of file nasl_snmp.c.

snmpv1v2_request_t

typedef struct snmpv1v2_request* snmpv1v2_request_t

Definition at line 55 of file nasl_snmp.c.

snmpv3_request_t

typedef struct snmpv3_request* snmpv3_request_t

Definition at line 72 of file nasl_snmp.c.

Function Documentation

array_from_snmp_error()

static tree_cell* array_from_snmp_error ( int  ret, const char *  err  )

static

Definition at line 150 of file nasl_snmp.c.

{
  anon_nasl_var v;
 
  assert (err);
  tree_cell *retc = alloc_typed_cell (DYN_ARRAY);
  retc->x.ref_val = g_malloc0 (sizeof (nasl_array));
  /* Return code */
  memset (&v, 0, sizeof (v));
  v.var_type = VAR2_INT;
  v.v.v_int = ret;
  add_var_to_list (retc->x.ref_val, 0, &v);
  /* Return error */
  memset (&v, 0, sizeof v);
  v.var_type = VAR2_STRING;
  v.v.v_str.s_val = (unsigned char *) err;
  v.v.v_str.s_siz = strlen (err);
  add_var_to_list (retc->x.ref_val, 1, &v);
 
  return retc;
}

References add_var_to_list(), alloc_typed_cell(), DYN_ARRAY, TC::ref_val, st_nasl_string::s_siz, st_nasl_string::s_val, st_a_nasl_var::v, st_a_nasl_var::v_int, st_a_nasl_var::v_str, VAR2_INT, VAR2_STRING, st_a_nasl_var::var_type, and TC::x.

Referenced by nasl_snmpv1v2c_get(), and nasl_snmpv3_get_action().

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array_from_snmp_result()

static tree_cell* array_from_snmp_result ( int  ret, const snmp_result_t  result  )

static

Definition at line 117 of file nasl_snmp.c.

{
  anon_nasl_var v;
 
  assert (result);
  assert (result->name);
  tree_cell *retc = alloc_typed_cell (DYN_ARRAY);
  retc->x.ref_val = g_malloc0 (sizeof (nasl_array));
  /* Return code */
  memset (&v, 0, sizeof (v));
  v.var_type = VAR2_INT;
  v.v.v_int = ret;
  add_var_to_list (retc->x.ref_val, 0, &v);
  /* Name */
  memset (&v, 0, sizeof v);
  v.var_type = VAR2_STRING;
  v.v.v_str.s_val = (unsigned char *) g_strdup (result->name);
  v.v.v_str.s_siz = strlen (result->name);
  add_var_to_list (retc->x.ref_val, 1, &v);
  /* OID */
  if (result->oid_str != NULL)
    {
      memset (&v, 0, sizeof v);
      v.var_type = VAR2_STRING;
      v.v.v_str.s_val = (unsigned char *) g_strdup (result->oid_str);
      v.v.v_str.s_siz = strlen (result->oid_str);
      add_var_to_list (retc->x.ref_val, 2, &v);
    }
 
  return retc;
}

References add_var_to_list(), alloc_typed_cell(), DYN_ARRAY, snmp_result::name, snmp_result::oid_str, TC::ref_val, st_nasl_string::s_siz, st_nasl_string::s_val, st_a_nasl_var::v, st_a_nasl_var::v_int, st_a_nasl_var::v_str, VAR2_INT, VAR2_STRING, st_a_nasl_var::var_type, and TC::x.

Referenced by nasl_snmpv1v2c_get(), and nasl_snmpv3_get_action().

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check_spwan_output()

static int check_spwan_output ( int  fd, snmp_result_t  result, int  fd_flag  )

static

Read data from a file descriptor.

Parameters

fd[in]	File descriptor to read from.
result[out]	String to write to.

Returns

0 success, -1 read error.

Definition at line 414 of file nasl_snmp.c.

{
  GString *string = NULL;
 
  string = g_string_new ("");
  while (1)
    {
      char buf[4096];
      size_t bytes;
 
      bytes = read (fd, buf, sizeof (buf));
      if (!bytes)
        break;
      else if (bytes > 0)
        g_string_append_len (string, buf, bytes);
      else
        {
          g_warning ("snmpget: %s", strerror (errno));
          g_string_free (string, TRUE);
          return -1;
        }
    }
 
  // Split the result and store the oid and name
  // in the result struct if there is a result
  if (fd_flag == FD_STDOUT_FLAG)
    {
      gchar **oid_and_name;
 
      oid_and_name = g_strsplit (string->str, " ", 2);
      result->oid_str = g_strdup (oid_and_name[0]);
      result->name = g_strdup (oid_and_name[1]);
      g_strfreev (oid_and_name);
    }
  else // STDERR, no oid
    result->name = g_strdup (string->str);
 
  g_string_free (string, TRUE);
 
  return 0;
}

References FD_STDOUT_FLAG, snmp_result::name, and snmp_result::oid_str.

Referenced by snmpv1v2c_get(), and snmpv3_get().

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destroy_snmp_result()

static void destroy_snmp_result ( snmp_result_t  result )

static

Definition at line 83 of file nasl_snmp.c.

{
  if (result == NULL)
    return;
  g_free (result->name);
  g_free (result->oid_str);
  g_free (result);
}

References snmp_result::name, and snmp_result::oid_str.

Referenced by nasl_snmpv1v2c_get(), and nasl_snmpv3_get_action().

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nasl_snmpv1_get()

tree_cell* nasl_snmpv1_get

(

lex_ctxt *

lexic

)

Definition at line 703 of file nasl_snmp.c.

{
  return nasl_snmpv1v2c_get (lexic, SNMP_VERSION_1, NASL_SNMP_GET);
}

References NASL_SNMP_GET, nasl_snmpv1v2c_get(), and SNMP_VERSION_1.

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nasl_snmpv1_getnext()

tree_cell* nasl_snmpv1_getnext

(

lex_ctxt *

lexic

)

Definition at line 709 of file nasl_snmp.c.

{
  return nasl_snmpv1v2c_get (lexic, SNMP_VERSION_1, NASL_SNMP_GETNEXT);
}

References NASL_SNMP_GETNEXT, nasl_snmpv1v2c_get(), and SNMP_VERSION_1.

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nasl_snmpv1v2c_get()

static tree_cell* nasl_snmpv1v2c_get ( lex_ctxt *  lexic, int  version, u_char  action  )

static

Definition at line 633 of file nasl_snmp.c.

{
  tree_cell *retc = NULL;
  const char *proto;
  char peername[2048];
  int port, ret;
  snmpv1v2_request_t request;
  snmp_result_t result;
  char *oid_str;
  static char *next_oid_str;
 
  request = g_malloc0 (sizeof (struct snmpv1v2_request));
 
  request->version = version;
  request->action = action;
  port = get_int_var_by_name (lexic, "port", -1);
  proto = get_str_var_by_name (lexic, "protocol");
  request->community = get_str_var_by_name (lexic, "community");
 
  oid_str = get_str_var_by_name (lexic, "oid");
  if (action == NASL_SNMP_GETNEXT && oid_str == NULL && next_oid_str != NULL)
    request->oid_str = next_oid_str;
  else
    request->oid_str = oid_str;
 
  if (!proto || !request->community || !request->oid_str)
    {
      g_free (request);
      return array_from_snmp_error (-2, "Missing function argument");
    }
  if (port < 0 || port > 65535)
    {
      g_free (request);
      return array_from_snmp_error (-2, "Invalid port value");
    }
  if (!proto_is_valid (proto))
    {
      g_free (request);
      return array_from_snmp_error (-2, "Invalid protocol value");
    }
 
  g_snprintf (peername, sizeof (peername), "%s:%s:%d", proto,
              plug_get_host_ip_str (lexic->script_infos), port);
  request->peername = peername;
 
  result = g_malloc0 (sizeof (struct snmp_result));
  ret = snmpv1v2c_get (request, result);
 
  // Hack the OID string to adjust format. Replace 'iso.' with '.1.'
  // This Allows to call getnext without an oid, since the last oid
  // is stored.
  if (result->oid_str != NULL && g_strstr_len (result->oid_str, 3, "iso"))
    {
      next_oid_str = result->oid_str + 2;
      next_oid_str[0] = '1';
      result->oid_str = g_strdup (next_oid_str);
    }
  else if (result->oid_str != NULL)
    next_oid_str = result->oid_str;
 
  /* Free request only, since members are pointers to the nasl lexic context
     which will be free()'d later */
  g_free (request);
 
  retc = array_from_snmp_result (ret, result);
  destroy_snmp_result (result);
  return retc;
}

References snmpv1v2_request::action, array_from_snmp_error(), array_from_snmp_result(), snmpv1v2_request::community, destroy_snmp_result(), get_int_var_by_name(), get_str_var_by_name(), NASL_SNMP_GETNEXT, snmpv1v2_request::oid_str, snmp_result::oid_str, snmpv1v2_request::peername, plug_get_host_ip_str(), proto_is_valid(), struct_lex_ctxt::script_infos, snmpv1v2c_get(), and snmpv1v2_request::version.

Referenced by nasl_snmpv1_get(), nasl_snmpv1_getnext(), nasl_snmpv2c_get(), and nasl_snmpv2c_getnext().

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nasl_snmpv2c_get()

tree_cell* nasl_snmpv2c_get

(

lex_ctxt *

lexic

)

Definition at line 715 of file nasl_snmp.c.

{
  return nasl_snmpv1v2c_get (lexic, SNMP_VERSION_2c, NASL_SNMP_GET);
}

References NASL_SNMP_GET, nasl_snmpv1v2c_get(), and SNMP_VERSION_2c.

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nasl_snmpv2c_getnext()

tree_cell* nasl_snmpv2c_getnext

(

lex_ctxt *

lexic

)

Definition at line 721 of file nasl_snmp.c.

{
  return nasl_snmpv1v2c_get (lexic, SNMP_VERSION_2c, NASL_SNMP_GETNEXT);
}

References NASL_SNMP_GETNEXT, nasl_snmpv1v2c_get(), and SNMP_VERSION_2c.

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nasl_snmpv3_get()

tree_cell* nasl_snmpv3_get

(

lex_ctxt *

lexic

)

Definition at line 832 of file nasl_snmp.c.

{
  return nasl_snmpv3_get_action (lexic, NASL_SNMP_GET);
}

References NASL_SNMP_GET, and nasl_snmpv3_get_action().

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nasl_snmpv3_get_action()

static tree_cell* nasl_snmpv3_get_action ( lex_ctxt *  lexic, u_char  action  )

static

Definition at line 727 of file nasl_snmp.c.

{
  tree_cell *retc = NULL;
  const char *proto, *authproto, *privproto;
  char peername[2048];
  int port, ret;
  snmpv3_request_t request;
  snmp_result_t result;
  char *oid_str;
  static char *next_oid_str;
 
  request = g_malloc0 (sizeof (struct snmpv3_request));
 
  request->action = action;
  port = get_int_var_by_name (lexic, "port", -1);
  proto = get_str_var_by_name (lexic, "protocol");
  request->username = get_str_var_by_name (lexic, "username");
  request->authpass = get_str_var_by_name (lexic, "authpass");
 
  oid_str = get_str_var_by_name (lexic, "oid");
 
  if (action == NASL_SNMP_GETNEXT && oid_str == NULL && next_oid_str != NULL)
    request->oid_str = next_oid_str;
  else
    request->oid_str = oid_str;
 
  authproto = get_str_var_by_name (lexic, "authproto");
  request->privpass = get_str_var_by_name (lexic, "privpass");
  privproto = get_str_var_by_name (lexic, "privproto");
 
  if (!proto || !request->username || !request->authpass || !request->oid_str
      || !authproto)
    {
      g_free (request);
      return array_from_snmp_error (-2, "Missing function argument");
    }
  if (port < 0 || port > 65535)
    {
      g_free (request);
      return array_from_snmp_error (-2, "Invalid port value");
    }
  if (!proto_is_valid (proto))
    {
      g_free (request);
      return array_from_snmp_error (-2, "Invalid protocol value");
    }
 
  if (!privproto || !request->privpass)
    {
      g_free (request);
      return array_from_snmp_error (-2, "Missing privproto or privpass");
    }
 
  if (!strcasecmp (authproto, "md5"))
    request->authproto = 0;
  else if (!strcasecmp (authproto, "sha1"))
    request->authproto = 1;
  else
    {
      g_free (request);
      return array_from_snmp_error (-2, "authproto should be md5 or sha1");
    }
 
  if (privproto)
    {
      if (!strcasecmp (privproto, "des"))
        request->privproto = 0;
      else if (!strcasecmp (privproto, "aes"))
        request->privproto = 1;
      else
        {
          g_free (request);
          return array_from_snmp_error (-2, "privproto should be des or aes");
        }
    }
 
  g_snprintf (peername, sizeof (peername), "%s:%s:%d", proto,
              plug_get_host_ip_str (lexic->script_infos), port);
  request->peername = peername;
 
  result = g_malloc0 (sizeof (struct snmp_result));
  ret = snmpv3_get (request, result);
 
  // Hack the OID string to adjust format. Replace 'iso.' with '.1.'
  // This Allows to call getnext without an oid, since the last oid
  // is stored.
  if (result->oid_str != NULL && g_strstr_len (result->oid_str, 3, "iso"))
    {
      next_oid_str = result->oid_str + 2;
      next_oid_str[0] = '1';
      result->oid_str = g_strdup (next_oid_str);
    }
  else if (result->oid_str != NULL)
    next_oid_str = result->oid_str;
 
  /* Free request only, since members are pointers to the nasl lexic context
     which will be free()'d later */
  g_free (request);
 
  retc = array_from_snmp_result (ret, result);
  destroy_snmp_result (result);
  return retc;
}

References snmpv3_request::action, array_from_snmp_error(), array_from_snmp_result(), snmpv3_request::authpass, snmpv3_request::authproto, destroy_snmp_result(), get_int_var_by_name(), get_str_var_by_name(), NASL_SNMP_GETNEXT, snmpv3_request::oid_str, snmp_result::oid_str, snmpv3_request::peername, plug_get_host_ip_str(), snmpv3_request::privpass, snmpv3_request::privproto, proto_is_valid(), struct_lex_ctxt::script_infos, snmpv3_get(), and snmpv3_request::username.

Referenced by nasl_snmpv3_get(), and nasl_snmpv3_getnext().

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nasl_snmpv3_getnext()

tree_cell* nasl_snmpv3_getnext

(

lex_ctxt *

lexic

)

Definition at line 838 of file nasl_snmp.c.

{
  return nasl_snmpv3_get_action (lexic, NASL_SNMP_GETNEXT);
}

References NASL_SNMP_GETNEXT, and nasl_snmpv3_get_action().

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parse_snmp_error()

static void parse_snmp_error ( snmp_result_t  result )

static

Parse the snmp error.

Parameters

result[in,out]

The result error to be parsed.

Definition at line 367 of file nasl_snmp.c.

{
  gchar **res_split, **res_aux;
 
  res_aux = res_split = g_strsplit (result->name, "\n", 0);
 
  if (!res_split)
    return;
 
  while (res_aux)
    {
      /* There is no special reason, we return the whole error message
         but removing the new line char at the end.
       */
      if (*res_aux == NULL)
        {
          char *pos;
 
          if ((pos = strchr (result->name, '\n')) != NULL)
            *pos = '\0';
          break;
        }
 
      /* Search for the reason */
      *res_aux = g_strrstr (*res_aux, "Reason: ");
      if (*res_aux)
        {
          g_free (result->name);
          result->name = g_strdup (*res_aux + 8);
          break;
        }
      res_aux += 1;
    }
 
  g_strfreev (res_split);
  return;
}

References snmp_result::name.

Referenced by snmpv1v2c_get(), and snmpv3_get().

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proto_is_valid()

static int proto_is_valid ( const char *  proto )

static

Definition at line 100 of file nasl_snmp.c.

{
  if (strcmp (proto, "tcp") && strcmp (proto, "udp") && strcmp (proto, "tcp6")
      && strcmp (proto, "udp6"))
    return 0;
  return 1;
}

Referenced by nasl_snmpv1v2c_get(), and nasl_snmpv3_get_action().

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snmpv1v2c_get()

static int snmpv1v2c_get ( const snmpv1v2_request_t  request, snmp_result_t  result  )

static

SNMP v1 or v2c Get query value. snmpget cmd wrapper.

param[in] request Contains all necessary information for SNMPv1 or SNMPv2 query. param[out] result Result of query.

Returns

0 if success and result value, -1 otherwise.

Definition at line 466 of file nasl_snmp.c.

{
  char *argv[8], *pos = NULL;
  GError *err = NULL;
  int sout = 0, serr = 0, ret;
 
  assert (request);
  assert (request->peername);
  assert (request->community);
  assert (request->oid_str);
  assert (request->version == SNMP_VERSION_1
          || request->version == SNMP_VERSION_2c);
  assert (request->action == NASL_SNMP_GET
          || request->action == NASL_SNMP_GETNEXT);
 
  setenv ("MIBS", "", 1);
 
  argv[0] = (request->action == NASL_SNMP_GET) ? "snmpget" : "snmpgetnext";
  argv[1] = (request->version == SNMP_VERSION_1) ? "-v1" : "-v2c";
  argv[2] = "-Oqn";
  argv[3] = "-c";
  argv[4] = g_strdup (request->community);
  argv[5] = g_strdup (request->peername);
  argv[6] = g_strdup (request->oid_str);
  argv[7] = NULL;
  ret = g_spawn_async_with_pipes (NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
                                  NULL, NULL, NULL, &sout, &serr, &err);
  g_free (argv[4]);
  g_free (argv[5]);
  g_free (argv[6]);
 
  if (ret == FALSE)
    {
      g_warning ("snmpget: %s", err ? err->message : "Error");
      if (err)
        g_error_free (err);
      return -1;
    }
 
  /* As we spawn the process asynchronously, we don't know the exit
     status of the process. Therefore we need to check for errors in
     the output.
     We assume a valid output if there is no errors.
  */
  check_spwan_output (serr, result, FD_STDERR_FLAG);
  if (result->name && result->name[0] != '\0')
    {
      parse_snmp_error (result);
      close (sout);
      close (serr);
      return -1;
    }
  close (serr);
  g_free (result->name);
 
  check_spwan_output (sout, result, FD_STDOUT_FLAG);
  close (sout);
 
  /* Remove the last new line char from the result */
  if ((pos = strchr (result->name, '\0')) != NULL)
    {
      pos--;
      if (pos[0] == '\n')
        *pos = '\0';
    }
 
  return 0;
}

References snmpv1v2_request::action, check_spwan_output(), snmpv1v2_request::community, FD_STDERR_FLAG, FD_STDOUT_FLAG, snmp_result::name, NASL_SNMP_GET, NASL_SNMP_GETNEXT, snmpv1v2_request::oid_str, parse_snmp_error(), snmpv1v2_request::peername, SNMP_VERSION_1, SNMP_VERSION_2c, and snmpv1v2_request::version.

Referenced by nasl_snmpv1v2c_get().

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snmpv3_get()

static int snmpv3_get ( const snmpv3_request_t  request, snmp_result_t  result  )

static

SNMPv3 Get query value. snmpget cmd wrapper.

param[in] request Contains all necessary information for SNMPv3 query. param[out] result Result of query.

Returns

0 if success and result value, -1 otherwise.

Definition at line 544 of file nasl_snmp.c.

{
  char *argv[18], *pos = NULL;
  GError *err = NULL;
  int sout = 0, serr = 0, ret;
 
  assert (request);
  assert (request->peername);
  assert (request->username);
  assert (request->authpass);
  assert (request->authproto == 0 || request->authproto == 1);
  assert (request->oid_str);
  assert (result);
 
  setenv ("MIBS", "", 1);
 
  argv[0] = (request->action == NASL_SNMP_GET) ? "snmpget" : "snmpgetnext";
  argv[1] = "-v3";
  argv[2] = "-Oqn";
  argv[3] = "-u";
  argv[4] = g_strdup (request->username);
  argv[5] = "-A";
  argv[6] = g_strdup (request->authpass);
  argv[7] = "-l";
  argv[8] = request->privpass ? "authPriv" : "authNoPriv";
  argv[9] = "-a";
  argv[10] = request->authproto ? "SHA" : "MD5";
  if (request->privpass)
    {
      argv[11] = g_strdup (request->peername);
      argv[12] = g_strdup (request->oid_str);
      argv[13] = "-x";
      argv[14] = request->privproto ? "AES" : "DES";
      argv[15] = "-X";
      argv[16] = g_strdup (request->privpass);
      argv[17] = NULL;
    }
  else
    {
      argv[11] = g_strdup (request->peername);
      argv[12] = g_strdup (request->oid_str);
      argv[13] = NULL;
    }
 
  ret = g_spawn_async_with_pipes (NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
                                  NULL, NULL, NULL, &sout, &serr, &err);
  g_free (argv[4]);
  g_free (argv[6]);
  g_free (argv[11]);
  g_free (argv[12]);
  if (request->privpass)
    g_free (argv[16]);
 
  if (ret == FALSE)
    {
      g_warning ("%s: %s", argv[0], err ? err->message : "Error");
      if (err)
        g_error_free (err);
      return -1;
    }
 
  check_spwan_output (serr, result, FD_STDERR_FLAG);
  if (result->name && result->name[0] != '\0')
    {
      parse_snmp_error (result);
      close (sout);
      close (serr);
      return -1;
    }
  close (serr);
  g_free (result->name);
 
  check_spwan_output (sout, result, FD_STDOUT_FLAG);
  close (sout);
 
  /* Remove the last new line char from the result */
  if ((pos = strchr (result->name, '\0')) != NULL)
    {
      pos--;
      if (pos[0] == '\n')
        *pos = '\0';
    }
 
  return 0;
}

References snmpv3_request::action, snmpv3_request::authpass, snmpv3_request::authproto, check_spwan_output(), FD_STDERR_FLAG, FD_STDOUT_FLAG, snmp_result::name, NASL_SNMP_GET, snmpv3_request::oid_str, parse_snmp_error(), snmpv3_request::peername, snmpv3_request::privpass, snmpv3_request::privproto, and snmpv3_request::username.

Referenced by nasl_snmpv3_get_action().

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