-/* $OSSEC, os_xml_node_variables.c, v0.3, 2005/04/12, Daniel B. Cid$ */
-
/* Copyright (C) 2009 Trend Micro Inc.
* All rights reserved.
*
* Foundation
*/
-/* os_xml C Library.
- * Available at http://www.ossec.net/
- */
-
-
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "os_xml.h"
#include "os_xml_internal.h"
+
int OS_ApplyVariables(OS_XML *_lxml)
{
unsigned int i, j = 0, s = 0;
char **var = NULL;
char **value = NULL;
char **tmp = NULL;
- char *p2= NULL;
+ char *p2 = NULL;
char *var_placeh = NULL;
-
- /* Getting all variables */
- for(i = 0;i<_lxml->cur;i++)
- {
- if(_lxml->tp[i] == XML_VARIABLE_BEGIN)
- {
+ /* Get all variables */
+ for (i = 0; i < _lxml->cur; i++) {
+ if (_lxml->tp[i] == XML_VARIABLE_BEGIN) {
int _found_var = 0;
- for(j = i + 1;j<_lxml->cur;j++)
- {
- if(_lxml->rl[j] < _lxml->rl[i])
+ for (j = i + 1; j < _lxml->cur; j++) {
+ if (_lxml->rl[j] < _lxml->rl[i]) {
break;
+ }
- else if(_lxml->tp[j] == XML_ATTR)
- {
- if((_lxml->el[j])&&(strcasecmp(_lxml->el[j],XML_VAR_ATTRIBUTE) == 0))
- {
- if(!_lxml->ct[j])
- {
+ else if (_lxml->tp[j] == XML_ATTR) {
+ if ((_lxml->el[j]) && (strcasecmp(_lxml->el[j], XML_VAR_ATTRIBUTE) == 0)) {
+ if (!_lxml->ct[j]) {
snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Invalid variable content.");
_lxml->err_line = _lxml->ln[j];
goto fail;
- }
- else if(strlen(_lxml->ct[j]) >= XML_VARIABLE_MAXSIZE)
- {
+ } else if (strlen(_lxml->ct[j]) >= XML_VARIABLE_MAXSIZE) {
snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Invalid variable name size.");
_lxml->err_line = _lxml->ln[j];
goto fail;
}
- /* If not used, it will be cleaned latter */
+ /* If not used, it will be cleaned later */
snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Memory error.");
- tmp = (char**)realloc(var,(s+1)*sizeof(char *));
- if(tmp == NULL)
+ tmp = (char **)realloc(var, (s + 1) * sizeof(char *));
+ if (tmp == NULL) {
goto fail;
+ }
var = tmp;
var[s] = _lxml->ct[j];
- /* Cleaning the lxml->err */
- strncpy(_lxml->err," ", 3);
+ /* Clean the lxml->err */
+ strncpy(_lxml->err, " ", 3);
_found_var = 1;
break;
- }
- else
- {
+ } else {
snprintf(_lxml->err, XML_ERR_LENGTH,
"XMLERR: Only \""XML_VAR_ATTRIBUTE"\" is allowed"
" as an attribute for a variable.");
} /* Attribute FOR */
- if((_found_var == 0)||(!_lxml->ct[i]))
- {
- snprintf(_lxml->err,XML_ERR_LENGTH,
+ if ((_found_var == 0) || (!_lxml->ct[i])) {
+ snprintf(_lxml->err, XML_ERR_LENGTH,
"XMLERR: No value set for variable.");
_lxml->err_line = _lxml->ln[i];
goto fail;
}
+ snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Memory error.");
- snprintf(_lxml->err,XML_ERR_LENGTH, "XMLERR: Memory error.");
-
- tmp = (char**)realloc(value,(s+1)*sizeof(char *));
- if (tmp == NULL)
+ tmp = (char **)realloc(value, (s + 1) * sizeof(char *));
+ if (tmp == NULL) {
goto fail;
+ }
value = tmp;
value[s] = _lxml->ct[i];
- strncpy(_lxml->err," ", 3);
+ strncpy(_lxml->err, " ", 3);
s++;
- }
- else if(((_lxml->tp[i] == XML_ELEM) || (_lxml->tp[i] == XML_ATTR))&&
- (_lxml->ct[i]))
- {
+ } else if (((_lxml->tp[i] == XML_ELEM) || (_lxml->tp[i] == XML_ATTR)) &&
+ (_lxml->ct[i])) {
unsigned int tp = 0;
size_t init = 0;
char *p = NULL;
char lvar[XML_VARIABLE_MAXSIZE]; /* MAX Var size */
- if(strlen(_lxml->ct[i]) <= 2)
+ if (strlen(_lxml->ct[i]) <= 2) {
continue;
+ }
+ /* Check if any variable is defined */
+ if (s == 0) {
+ continue;
+ }
- /* Duplicating string */
+ /* Duplicate string */
p = strdup(_lxml->ct[i]);
- p2= p;
+ p2 = p;
- if(p == NULL)
- {
+ if (p == NULL) {
snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Memory error.");
goto fail;
}
-
- /* Reading the whole string */
- while(*p != '\0')
- {
- if(*p == XML_VARIABLE_BEGIN)
- {
+ /* Read the whole string */
+ while (*p != '\0') {
+ if (*p == XML_VARIABLE_BEGIN) {
tp = 0;
p++;
memset(lvar, '\0', XML_VARIABLE_MAXSIZE);
- while(1)
- {
- if((*p == XML_VARIABLE_BEGIN)
- ||(*p == '\0')
- ||(*p == '.')
- ||(*p == '|')
- ||(*p == ',')
- ||(*p == ' '))
- {
- lvar[tp]='\0';
-
- /* Looking for var */
- for(j=0; j<s; j++)
- {
- if(var[j] == NULL)
+ while (1) {
+ if ((*p == XML_VARIABLE_BEGIN)
+ || (*p == '\0')
+ || (*p == '.')
+ || (*p == '|')
+ || (*p == ',')
+ || (*p == ' ')) {
+ lvar[tp] = '\0';
+
+ /* Look for var */
+ for (j = 0; j < s; j++) {
+ if (var[j] == NULL) {
break;
+ }
- if(strcasecmp(var[j], lvar) != 0)
- {
+ if (strcasecmp(var[j], lvar) != 0) {
continue;
}
-
size_t tsize = strlen(_lxml->ct[i]) +
- strlen(value[j]) - tp + 1;
-
+ strlen(value[j]) - tp + 1;
var_placeh = strdup(_lxml->ct[i]);
-
free(_lxml->ct[i]);
+ _lxml->ct[i] = (char *)calloc(tsize + 2,
+ sizeof(char));
- _lxml->ct[i] = (char*)calloc(tsize +2,
- sizeof(char));
-
- if(_lxml->ct[i] == NULL || var_placeh == NULL)
- {
- snprintf(_lxml->err,XML_ERR_LENGTH, "XMLERR: Memory "
- "error.");
+ if (_lxml->ct[i] == NULL || var_placeh == NULL) {
+ snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Memory "
+ "error.");
goto fail;
}
-
strncpy(_lxml->ct[i], var_placeh, tsize);
-
_lxml->ct[i][init] = '\0';
- strncat(_lxml->ct[i], value[j],tsize - init);
-
+ strncat(_lxml->ct[i], value[j], tsize - init);
init = strlen(_lxml->ct[i]);
strncat(_lxml->ct[i], p,
- tsize - strlen(_lxml->ct[i]));
-
+ tsize - strlen(_lxml->ct[i]));
free(var_placeh);
var_placeh = NULL;
break;
}
- /* Variale not found */
- if((j == s) && (strlen(lvar) >= 1))
- {
- snprintf(_lxml->err,XML_ERR_LENGTH,
- "XMLERR: Unknown variable"
- ": '%s'.", lvar);
+ /* Variable not found */
+ if ((j == s) && (strlen(lvar) >= 1)) {
+ snprintf(_lxml->err, XML_ERR_LENGTH,
+ "XMLERR: Unknown variable"
+ ": '%s'.", lvar);
_lxml->err_line = _lxml->ln[i];
goto fail;
- }
- else if(j == s)
- {
+ } else if (j == s) {
init++;
}
}
/* Maximum size for a variable */
- if(tp >= XML_VARIABLE_MAXSIZE - 1)
- {
- snprintf(_lxml->err,XML_ERR_LENGTH, "XMLERR: Invalid "
- "variable name size: '%u'.", tp);
+ if (tp >= XML_VARIABLE_MAXSIZE - 1) {
+ snprintf(_lxml->err, XML_ERR_LENGTH, "XMLERR: Invalid "
+ "variable name size: '%u'.", tp);
_lxml->err_line = _lxml->ln[i];
goto fail;
p++;
init++;
- go_next:
+go_next:
continue;
} /* WHILE END */
- if(p2 != NULL)
- {
+ if (p2 != NULL) {
free(p2);
p2 = NULL;
p = NULL;
goto cleanup;
- fail:
+fail:
retval = -1;
- cleanup:
- /* Cleaning the variables */
+cleanup:
+ /* Clean up the variables */
free(var);
free(value);
free(p2);
- free(var_placeh);
+ free(var_placeh);
- return(retval);
+ return (retval);
}
-/* UFA :) or EOF */
projects / ossec-hids.git / blobdiff