/*
* Copyright 2009--2014 Red Hat Inc., Durham, North Carolina.
* All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
* David Niemoller <David.Niemoller@g2-inc.com>
* Peter Vrabec <pvrabec@redhat.com>
* Tomas Heinrich <theinric@redhat.com>
* Daniel Kopecek <dkopecek@redhat.com>
* Šimon Lukašík
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <inttypes.h>
#ifdef OS_WINDOWS
#include <winsock2.h>
#else
#include <arpa/inet.h>
#include <sys/socket.h>
#endif
#include "oval_types.h"
#include "oval_system_characteristics.h"
#include "common/_error.h"
#include "common/debug_priv.h"
#include "oval_cmp_basic_impl.h"
#include "oval_cmp_evr_string_impl.h"
#include "oval_cmp_ip_address_impl.h"
#include "oval_cmp_impl.h"
__attribute__((nonnull(1,2))) static bool cstr_to_intmax(const char *cstr, intmax_t *result)
{
char *endptr = NULL;
errno = 0;
*result = strtoimax(cstr, &endptr, 10);
// Check for underflow/overflow, strtoimax sets ERANGE in such case
if (errno == ERANGE) {
return false;
}
// Check whether there were some digits in the string
if (endptr == cstr) {
errno = EINVAL;
return false;
}
// Check whether the function used the whole string
if (*endptr != '\0') {
errno = EINVAL;
return false;
}
return true;
}
__attribute__((nonnull(1,2))) static bool cstr_to_double(const char *cstr, double *result)
{
char *endptr = NULL;
errno = 0;
*result = strtod(cstr, &endptr);
// Check for underflow/overflow, strtoimax sets ERANGE in such case
if (errno == ERANGE) {
return false;
}
// Check whether there were some digits in the string
if (endptr == cstr) {
errno = EINVAL;
return false;
}
// Check whether the function used the whole string
if (*endptr != '\0') {
errno = EINVAL;
return false;
}
return true;
}
oval_result_t oval_str_cmp_str(char *state_data, oval_datatype_t state_data_type, const char *sys_data, oval_operation_t operation)
{
// finally, we have gotten to the point of comparing system data with a state
if (state_data_type == OVAL_DATATYPE_STRING) {
return oval_string_cmp(state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_INTEGER) {
intmax_t state_val, syschar_val;
if (!cstr_to_intmax(state_data, &state_val)) {
oscap_seterr(OSCAP_EFAMILY_OVAL,
"Conversion of the string \"%s\" to an integer (%u bits) failed: %s",
state_data, sizeof(intmax_t)*8, strerror(errno));
return OVAL_RESULT_ERROR;
}
if (!cstr_to_intmax(sys_data, &syschar_val)) {
oscap_seterr(OSCAP_EFAMILY_OVAL,
"Conversion of the string \"%s\" to an integer (%u bits) failed: %s",
sys_data, sizeof(intmax_t)*8, strerror(errno));
return OVAL_RESULT_ERROR;
}
return oval_int_cmp(state_val, syschar_val, operation);
} else if (state_data_type == OVAL_DATATYPE_FLOAT) {
double state_val, sys_val;
if (!cstr_to_double(state_data, &state_val)) {
oscap_seterr(OSCAP_EFAMILY_OVAL,
"Conversion of the string \"%s\" to a floating type (double) failed: %s",
state_data, strerror(errno));
return OVAL_RESULT_ERROR;
}
if (!cstr_to_double(sys_data, &sys_val)) {
oscap_seterr(OSCAP_EFAMILY_OVAL,
"Conversion of the string \"%s\" to a floating type (double) failed: %s",
sys_data, strerror(errno));
return OVAL_RESULT_ERROR;
}
return oval_float_cmp(state_val, sys_val, operation);
} else if (state_data_type == OVAL_DATATYPE_BOOLEAN) {
int state_int;
int sys_int;
state_int = (((strcmp(state_data, "true")) == 0) || ((strcmp(state_data, "1")) == 0)) ? 1 : 0;
sys_int = (((strcmp(sys_data, "true")) == 0) || ((strcmp(sys_data, "1")) == 0)) ? 1 : 0;
return oval_boolean_cmp(state_int, sys_int, operation);
} else if (state_data_type == OVAL_DATATYPE_BINARY) {
return oval_binary_cmp(state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_EVR_STRING) {
return oval_evr_string_cmp(state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_DEBIAN_EVR_STRING) {
return oval_evr_string_cmp(state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_VERSION) {
return oval_versiontype_cmp(state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_IPV4ADDR) {
return oval_ipaddr_cmp(AF_INET, state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_IPV6ADDR) {
return oval_ipaddr_cmp(AF_INET6, state_data, sys_data, operation);
} else if (state_data_type == OVAL_DATATYPE_FILESET_REVISION
|| state_data_type == OVAL_DATATYPE_IOS_VERSION) {
dW("Unsupported data type: %s.", oval_datatype_get_text(state_data_type));
return OVAL_RESULT_NOT_EVALUATED;
}
oscap_seterr(OSCAP_EFAMILY_OVAL, "Invalid OVAL data type: %d.", state_data_type);
return OVAL_RESULT_ERROR;
}