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#ifndef __dew_cgi_lib
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#define __dew_cgi_lib
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#include "php_tmpl_prefix.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <utime.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <sys/timeb.h>
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#include <sys/time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <ctype.h> // for tolower(char)
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#include <string.h>
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#include <sqltypes.h>
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#include "config.h"
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#include "clog.h"
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#include "list.h"
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#include "cvariables.h"
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#define CGI_FLAG_CLEAR (char*)-1
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#define EMAIL_PREFIX TMPL_PREFIX
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enum { METHOD_NONE, METHOD_GET, METHOD_POST };
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enum { SEQ_NONE, SEQ_REVERSE };
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int Min0(int a, int b, bool & EOS); // Returns the smaller of the two; if it's < 0, returns 0
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// a = how many to copy; b = limit;
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void strncpy_(char * dst, char * src, int n);
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int GetParam(char * params, char _name[], char value[], int valuelen, char ** end = NULL);
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void CatFile( char * fname, FILE * fout );
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/************************************************************************
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* *
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* Classes *
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* *
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* - Class CVariables defines a set of routines for handling internal *
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* variables, which are stored by using a linked list *
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* *
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* - Class CGIList implements the functionality in template rendering *
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* by which one can define lists of unknown length from within *
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* a template. *
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* *
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* - Class C_CGI_Form is the most essential class for the CGI interface. *
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* It enables to obtain variables passed from the browser *
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* and renders complex templates using CVariables and CGIList *
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* *
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*************************************************************************/
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// The following deals with getting variables from forms
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typedef struct
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{
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char * mask, * explanation;
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} pattern_t;
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typedef
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enum { CGI_STRING, CGI_RADIO,
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CGI_SELECT,
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CGI_SELECT_LOOKUP,
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CGI_CHECKBOX,
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CGI_CHECKBOXLIST, // bit-encoded ULONG
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CGI_LONG,
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CGI_FLOAT,
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CGI_CHECKBOXLIST_ARRAY, // array of ULONGs
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CGI_RADIO_INT,
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CGI_SELECT_MUL, // multiple select box
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CGI_RADIO_INT2, // CGI_RADIO_INT that uses first two letters of the variable name for referencing values
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CGI_AMOUNT, // currency amount, converts to unsigned long
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}
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CGI_VAR_TYPE;
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typedef struct
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{
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char *name;
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CGI_VAR_TYPE type;
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// Matching
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int minlen, maxlen;
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pattern_t *pattern; // ext regular expression; NULL for skip
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char **radio; // for radio buttons, NULL otherwise
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unsigned char nradio; // number of elements
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// return portion
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void *target; // Where the result should be stored
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int size; // Don't exceed this !
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// corresponding SQL type
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int sql_type;
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// more return data
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bool match;
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} CGI_Variable;
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//
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class CGIList;
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typedef struct
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{
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char * pre, * post;
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int pre_n, post_n;
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} Tprepost;
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class C_CGI_Form : public CVariables {
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public:
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friend class CGIList;
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C_CGI_Form( char * _dir, char * _template_file, char * _global_template=NULL, int _argc=0, char **_argv = NULL );
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// Instantiates a C_CGI_Form object.
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// _dir - template directory
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// _template_file - initial/default template file
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// _global_template - used to encapsulate templates in a global template
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// _arc - argc from main()
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// _argv - argv from main()
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~C_CGI_Form( );
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void Email( char * fname, char * from=NULL );
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bool Form( FILE * fout ); // Render output from current template into opened file 'fout'
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bool Form( FILE * fout, char * template_file );
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char * FormFile( char * fname ); // Render output from current template into 'fname'
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char * FormBuffer( char * buf );
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/* bool FormBuffer( char * buf, FILE * fout, char * listname = NULL, int listi = 0 );
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// Render output from current template into buffer*/
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char * RFormBuffer( char * buf, char * listname = NULL, int listi = 0 );
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// Render output from current template into buffer using recursion
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#ifdef WITH_LANGUAGE
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char *translate( char * buf, const char *template_file );
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#endif
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// int GetParam( char name[], char value[], int valuelen );
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// Scan 'params' for 'name' and return its value in 'value'
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int GetParam( char name[], char value[], int valuelen, char ** end = NULL, char *start = NULL );
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int GetParamMul( char name[], TList ** list );
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int GetScreen( char * screens[], int n, const char * scrs = NULL );
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// Returns current screen index as passed by the browser
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// and looked up in screens[]
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int GetCommand( char * commands[], int n );
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// Returns current command index as passed by the browser
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// and looked up in commands[]
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void Template( char * _template_file )
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// Sets the default template to '_template_file'
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{
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free( template_file );
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template_file = (char*)malloc( strlen(TMPL_PREFIX)+1+strlen(_template_file)+1 );
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sprintf( template_file, "%s/%s", TMPL_PREFIX, _template_file );
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}
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void GlobalTemplate( char * _template_file )
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// Sets the global template to '_template_file'
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{
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if ( global_template ) free( global_template );
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global_template = strdup(_template_file);
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}
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// void ParseGlobalTemplate(); // Parse the global template file and set 'sectionX' variables
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void ParseGlobalTemplate( char * fname = NULL );
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bool ParseNewTemplate( char * fname = NULL );
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void MatchVariable( CGI_Variable * var, bool optional = false, bool flag_if_mismatch = true );
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// Provides CGI variable mapping and matching functionality
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// can match against regular expressions etc
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void SetVariable( CGI_Variable * var );
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// Sets a variable that may be used in a template
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void Flag( CGI_Variable * var );
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// Mark variable as invalid input
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void Flag( char * var, char * explanation = NULL );
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// Mark variable as invalid input
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void ClearVariable( CGI_Variable var );
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void GetNextVariable( TList * &cur, char * &c1, char * &c, char * listname, int listi );
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CGIList * lists[50];
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int nlists;
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char * params;
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char * template_file;
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char * global_template;
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unsigned char method, sequence;
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private:
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char * dir;
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char * form;
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#ifdef WITH_LANGUAGE
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char language[10];
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#endif
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int argc;
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char** argv;
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};
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class CGIList
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{
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public:
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friend class C_CGI_Form;
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CGIList( C_CGI_Form * _form, char * name );
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// Instantiates a CGI_List object
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// _form points to the parent form object
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// name - name of the list as used in template
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~CGIList() { free( listname ); if (form) form->lists[listn] = 0; };
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int CloseElement() { return ++n; };
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// Move on to the next element in the list.
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void LetStr( char * var, char * value );
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// Set a CGI list variable using the list name and element number as part of the name
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void LetStrf( char * var, const char * format, ... );
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void LetInt16( char * var, int value );
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// Set a CGI list variable using the list name and element number as part of the name
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char * GetVariable( char * var, char * result, int size );
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// Obtain a CGI list variable value using the list name and element number as part of the name
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void LetStr( char * var, const char * format, ... );
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int n;
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private:
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C_CGI_Form * form;
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int listn;
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char * listname;
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};
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class CInputError : public CVariables {
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public:
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void Add( bool text, const char * name, const char * explanation, ... );
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char * Get( const char * name, bool *text );
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void Log();
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};
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#endif
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