hexedit.h

   1 #ifndef HEXEDIT_H
   2 #define HEXEDIT_H
   3
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <sys/types.h>
   9 #include <sys/stat.h>
  10 #include <fcntl.h>
  11 #include <unistd.h>
  12 #include <curses.h>
  13 #include <ctype.h>
  14 #include <signal.h>
  15 #include <sys/wait.h>
  16 #include <errno.h>
  17 #if HAVE_LIBGEN_H
  18 #include <libgen.h>
  19 #endif
  20 #if HAVE_SYS_MOUNT_H
  21 #include <sys/mount.h> /* for BLKGETSIZE */
  22 #endif
  23
  24 #define INT off_t
  25 void LSEEK(int fd, INT where);
  26 int LSEEK_(int fd, INT where);
  27
  28 /*******************************************************************************/
  29 /* Macros */
  30 /*******************************************************************************/
  31 #define BIGGEST_COPYING (1 * 1024 * 1024)
  32 #define BLOCK_SEARCH_SIZE (4 * 1024)
  33 #define SECTOR_SIZE ((INT) 512)
  34 #ifndef CTRL
  35   #define CTRL(c) ((c) & 0x1F)
  36 #endif
  37 #define ALT(c) ((c) | 0xa0)
  38 #define DIE(M) { fprintf(stderr, M, progName); exit(1); }
  39 #define FREE(p) if (p) free(p)
  40 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  41 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  42 #define NORMAL A_NORMAL
  43 #define MARKED A_REVERSE
  44 #define MODIFIED A_BOLD
  45 #define ATTRPRINTW(attr, a) do { if (oldattr != (attr)) attrset(attr), oldattr = (attr); printw a; } while (0)
  46 #define MAXATTRPRINTW(attr, a) do { if (oldattr & (~(attr))) attrset(attr & oldattr), oldattr &= (attr); printw a; } while (0)
  47 #define PRINTW(a) ATTRPRINTW(NORMAL, a)
  48 #ifndef getnstr
  49   #define getnstr(str, n) wgetnstr(stdscr, str, n)
  50 #endif
  51
  52
  53 /*******************************************************************************/
  54 /* Configuration parameters */
  55 /*******************************************************************************/
  56 typedef enum { bySector, maximized, LAST } modeType;
  57 typedef struct {
  58   int blocSize, lineLength, page;
  59 } modeParams;
  60
  61 extern modeParams modes[LAST];
  62 extern modeType mode;
  63 extern int colored;
  64 extern char *usage;
  65
  66 #define pressAnyKey "(press any key)"
  67
  68
  69 /*******************************************************************************/
  70 /* Pages handling */
  71 /*******************************************************************************/
  72 typedef struct _typePage {
  73   struct _typePage *next;
  74
  75   INT base;
  76   int size;
  77   unsigned char *vals;
  78 } typePage;
  79
  80
  81 /*******************************************************************************/
  82 /* Global variables */
  83 /*******************************************************************************/
  84
  85 extern INT lastEditedLoc, biggestLoc, fileSize;
  86 extern INT mark_min, mark_max, mark_set;
  87 extern INT base, oldbase;
  88 extern int normalSpaces, cursor, cursorOffset, hexOrAscii;
  89 extern int cursor, blocSize, lineLength, colsUsed, page;
  90 extern int isReadOnly, fd, nbBytes, oldcursor, oldattr, oldcursorOffset;
  91 extern int sizeCopyBuffer, *bufferAttr;
  92 extern char *progName, *fileName, *baseName;
  93 extern unsigned char *buffer, *copyBuffer;
  94 extern typePage *edited;
  95
  96 extern char *lastFindFile, *lastYankToAFile, *lastAskHexString, *lastAskAsciiString, *lastFillWithStringHexa, *lastFillWithStringAscii;
  97
  98
  99 /*******************************************************************************/
 100 /* Miscellaneous functions declaration */
 101 /*******************************************************************************/
 102 INT getfilesize(void);
 103 int key_to_function(int key);
 104 void init(void);
 105 void quit(void);
 106 int tryloc(INT loc);
 107 void openFile(void);
 108 void readFile(void);
 109 int findFile(void);
 110 int computeLineSize(void);
 111 int computeCursorXCurrentPos(void);
 112 int computeCursorXPos(int cursor, int hexOrAscii);
 113 void updateMarked(void);
 114 int ask_about_save(void);
 115 int ask_about_save_and_redisplay(void);
 116 void ask_about_save_and_quit(void);
 117 int setTo(int c);
 118 void setToChar(int i, unsigned char c);
 119
 120 /*******************************************************************************/
 121 /* Pages handling functions declaration */
 122 /*******************************************************************************/
 123 void discardEdited(void);
 124 void addToEdited(INT base, int size, unsigned char *vals);
 125 void removeFromEdited(INT base, int size);
 126 typePage *newPage(INT base, int size);
 127 void freePage(typePage *page);
 128
 129
 130 /*******************************************************************************/
 131 /* Cursor manipulation function declarations */
 132 /*******************************************************************************/
 133 int move_cursor(INT delta);
 134 int set_cursor(INT loc);
 135 int move_base(INT delta);
 136 int set_base(INT loc);
 137
 138 /*******************************************************************************/
 139 /* Curses functions declaration */
 140 /*******************************************************************************/
 141 void initCurses(void);
 142 void exitCurses(void);
 143 void display(void);
 144 void displayLine(int offset, int max);
 145 void clr_line(int line);
 146 void displayCentered(char *msg, int line);
 147 void displayOneLineMessage(char *msg);
 148 void displayTwoLineMessage(char *msg1, char *msg2);
 149 void displayMessageAndWaitForKey(char *msg);
 150 int displayMessageAndGetString(char *msg, char **last, char *p, int p_size);
 151 void ungetstr(char *s);
 152 int get_number(INT *i);
 153
 154
 155 /*******************************************************************************/
 156 /* Search functions declaration */
 157 /*******************************************************************************/
 158 void search_forward(void);
 159 void search_backward(void);
 160
 161
 162 /*******************************************************************************/
 163 /* Mark functions declaration */
 164 /*******************************************************************************/
 165 void markRegion(INT a, INT b);
 166 void unmarkRegion(INT a, INT b);
 167 void markSelectedRegion(void);
 168 void unmarkAll(void);
 169 void markIt(int i);
 170 void unmarkIt(int i);
 171 void copy_region(void);
 172 void yank(void);
 173 void yank_to_a_file(void);
 174 void fill_with_string(void);
 175
 176
 177 /*******************************************************************************/
 178 /* Small common functions declaration */
 179 /*******************************************************************************/
 180 int streq(const char *s1, const char *s2);
 181 int strbeginswith(const char *a, const char *prefix);
 182 int myceil(int a, int b);
 183 INT myfloor(INT a, INT b);
 184 int setLowBits(int p, int val);
 185 int setHighBits(int p, int val);
 186 char *strconcat3(char *a, char *b, char *c);
 187 int hexCharToInt(int c);
 188 int not(int b);
 189 char *mymemmem(char *a, int sizea, char *b, int sizeb);
 190 char *mymemrmem(char *a, int sizea, char *b, int sizeb);
 191 int is_file(char *name);
 192 int hexStringToBinString(char *p, int *l);
 193
 194 #endif  /* HEXEDIT_H */