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pwntcha/src/common.h

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  1. /*

  2.  * commin.h: common stuff

  3.  * $Id$

  4.  *

  5.  * Copyright: (c) 2004 Sam Hocevar <sam@zoy.org>

  6.  *  This program is free software. It comes without any warranty, to

  7.  *  the extent permitted by applicable law. You can redistribute it

  8.  *  and/or modify it under the terms of the Do What The Fuck You Want

  9.  *  To Public License, Version 2, as published by Sam Hocevar. See

  10.  *  http://sam.zoy.org/wtfpl/COPYING for more details.

  11.  */

  12. 

  13. /* image structure */

  14. struct image

  15. {

  16.     int width, height, pitch, channels;

  17.     unsigned char *pixels;

  18.     void *priv;

  19. };

  20. 

  21. /* font structure */

  22. struct font

  23. {

  24.     struct image *img;

  25.     struct glyph

  26.     {

  27.         int xmin, xmax, ymin, ymax;

  28.         int count; /* Black pixel count */

  29.         char c;

  30.     } *glyphs;

  31.     int size;

  32. };

  33. 

  34. /* global variables */

  35. extern char *argv0;

  36. extern char *share;

  37. 

  38. /* debug function */

  39. void pwnprint(const char *fmt, ...);

  40. 

  41. /* available CAPTCHA decoders */

  42. char *decode_authimage(struct image *img);

  43. char *decode_clubic(struct image *img);

  44. char *decode_linuxfr(struct image *img);

  45. char *decode_livejournal(struct image *img);

  46. char *decode_paypal(struct image *img);

  47. char *decode_phpbb(struct image *img);

  48. char *decode_scode(struct image *img);

  49. char *decode_slashdot(struct image *img);

  50. char *decode_tickets(struct image *img);

  51. char *decode_ticketmaster(struct image *img);

  52. char *decode_vbulletin(struct image *img);

  53. char *decode_xanga(struct image *img);

  54. char *decode_test(struct image *img);

  55. 

  56. /* image operations */

  57. struct image *image_load(const char *name);

  58. struct image *image_new(int width, int height);

  59. struct image *image_dup(struct image *img);

  60. void image_free(struct image *img);

  61. void image_save(struct image *img, const char *name);

  62. void image_swap(struct image *img1, struct image *img2);

  63. int getgray(struct image *img, int x, int y, int *g);

  64. int getpixel(struct image *img, int x, int y, int *r, int *g, int *b);

  65. int setpixel(struct image *img, int x, int y, int r, int g, int b);

  66. 

  67. /* font operations */

  68. struct font *font_load_fixed(char const *, char const *, char const *);

  69. struct font *font_load_variable(char const *, char const *, char const *);

  70. void font_free(struct font *);

  71. 

  72. /* image filters */

  73. void filter_flood_fill(struct image *img, int x, int y, int r, int g, int b);

  74. void filter_fill_holes(struct image *img);

  75. void filter_scale(struct image *img, float ratio);

  76. void filter_black_stuff(struct image *img);

  77. void filter_detect_lines(struct image *img);

  78. void filter_threshold(struct image *img, int threshold);

  79. void filter_trick(struct image *img);

  80. void filter_smooth(struct image *img);

  81. void filter_median(struct image *img);

  82. void filter_contrast(struct image *img);

  83. void filter_crop(struct image *img, int xmin, int ymin, int xmax, int ymax);

  84. int filter_count(struct image *img);