Verified Commit e3d3e1d0 authored by Tomáš Stefan's avatar Tomáš Stefan
Browse files

Reading xref section (with all subsections) 

added
  - tests
  - fn add_xref_entry
  - fn free_xref_entry
  - fn xref_init
  - fn xref_free
  - fn read_xref_table
  - fn print_xref
  - fn skip_leading_whitespaces
  - fn parse_keyword
removed
  - modes (also sigil_process -> sigil_verify)
parent 552ea368

include/auxiliary.h

+27 −3
Original line number Diff line number Diff line
@@ -2,12 +2,33 @@ 
#define PDF_SIGIL_AUXILIARY_H



#include <stdio.h>

#include <stdint.h>



#ifndef CHAR_T

#define CHAR_T

    typedef char char_t;

    typedef unsigned char char_t;

#endif /* CHAR_T */



#ifndef SIGIL_ERR_T

#define SIGIL_ERR_T

    typedef uint32_t sigil_err_t;

#endif /* SIGIL_ERR_T */



#ifndef KEYWORD_T

#define KEYWORD_T

    typedef uint32_t keyword_t;

#endif /* KEYWORD_T */



#ifndef FREE_INDICATOR_T

#define FREE_INDICATOR_T

    typedef uint32_t free_indicator_t;

#endif /* FREE_INDICATOR_T */



#define KEYWORD_xref     0

#define KEYWORD_trailer  1



#define IN_USE_ENTRY     0

#define FREE_ENTRY       1



#define COLOR_RED        "\x1b[31m"

#define COLOR_GREEN      "\x1b[32m"
@@ -22,8 +43,11 @@ void sigil_zeroize(void *a, size_t bytes); 
int is_digit(const char_t c);

int is_whitespace(const char_t c);



int parse_number(FILE *in, size_t *number);

int parse_free_indicator(FILE *in, char_t *result);

sigil_err_t skip_leading_whitespaces(FILE *in);



sigil_err_t parse_number(FILE *in, size_t *number);

sigil_err_t parse_keyword(FILE *in, keyword_t *keyword);

sigil_err_t parse_free_indicator(FILE *in, free_indicator_t *result);



void print_module_name(const char *module_name, int verbosity);

void print_module_result(int result, int verbosity);

include/error.h

+6 −4
Original line number Diff line number Diff line
@@ -5,9 +5,13 @@ 


#ifndef CHAR_T

#define CHAR_T

    typedef char char_t;

    typedef unsigned char char_t;

#endif /* CHAR_T */



#ifndef SIGIL_ERR_T

#define SIGIL_ERR_T

    typedef uint32_t sigil_err_t;

#endif /* SIGIL_ERR_T */



#define ERR_NO           0x0000 // [_|_|_|x] 0000 0000

#define ERR_ALLOC        0x0001 // [_|_|_|x] 0000 0001
@@ -27,9 +31,7 @@ 
#define ERR_15           0x4000 // [_|_|x|_] 0100 0000

#define ERR_16           0x8000 // [_|_|x|_] 1000 0000



typedef uint32_t sigil_err_t;



const char_t *sigil_err_string(sigil_err_t err);

const char *sigil_err_string(sigil_err_t err);



int sigil_error_self_test(int verbosity);

include/header.h

+5 −1
Original line number Diff line number Diff line 
#ifndef PDF_SIGIL_HEADER_H

#define PDF_SIGIL_HEADER_H



#include "error.h"

#include "sigil.h"



#ifndef SIGIL_ERR_T

#define SIGIL_ERR_T

    typedef uint32_t sigil_err_t;

#endif /* SIGIL_ERR_T */





sigil_err_t process_header(sigil_t *sgl);

include/sigil.h

+10 −16
Original line number Diff line number Diff line
@@ -2,13 +2,17 @@ 
#define PDF_SIGIL_SIGIL_H



#include <stdio.h>

#include "error.h"



#ifndef CHAR_T

#define CHAR_T

    typedef char char_t;

    typedef unsigned char char_t;

#endif /* CHAR_T */



#ifndef SIGIL_ERR_T

#define SIGIL_ERR_T

    typedef uint32_t sigil_err_t;

#endif /* SIGIL_ERR_T */



#ifndef XREF_T

#define XREF_T

    typedef struct {
@@ -26,17 +30,9 @@ 
#define XREF_TYPE_TABLE    1

#define XREF_TYPE_STREAM   2



#define MODE_UNSET     0

#define MODE_VERIFY    1

#define MODE_SIGN      2



typedef uint32_t mode_t;

struct xref_t;



typedef struct {

    FILE   *file;

    char_t *filepath;

    mode_t  mode;

    char   *filepath;

    short   pdf_x,             /* numbers from PDF header */

            pdf_y;             /*   %PDF-<pdf_x>.<pdf_y>  */

    short   xref_type;
@@ -48,13 +44,11 @@ typedef struct { 


sigil_err_t sigil_init(sigil_t **sgl);



sigil_err_t sigil_setup_file(sigil_t *sgl, const char_t *filepath);



sigil_err_t sigil_setup_mode(sigil_t *sgl, mode_t mode);

sigil_err_t sigil_setup_file(sigil_t *sgl, const char *filepath);



sigil_err_t sigil_process(sigil_t *sgl);

sigil_err_t sigil_verify(sigil_t *sgl);



// ... get functions TBD

// ... get functions TODO



void sigil_free(sigil_t *sgl);

include/trailer.h

+4 −1
Original line number Diff line number Diff line 
#ifndef PDF_SIGIL_TRAILER_H

#define PDF_SIGIL_TRAILER_H



#include "error.h"

#ifndef SIGIL_ERR_T

#define SIGIL_ERR_T

    typedef uint32_t sigil_err_t;

#endif /* SIGIL_ERR_T */





sigil_err_t process_trailer(sigil_t *sgl);