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_SYS_MOUNT_H
  18 #include <sys/mount.h> /* for BLKGETSIZE */
  19 #endif
  20
  21 void LSEEK(int fd, off_t where);
  22 int LSEEK_(int fd, off_t where);
  23
  24 /*******************************************************************************/
  25 /* Macros */
  26 /*******************************************************************************/
  27 #define BIGGEST_COPYING (1 * 1024 * 1024)
  28 #define BLOCK_SEARCH_SIZE (4 * 1024)
  29 #define SECTOR_SIZE ((off_t) 512)
  30 #ifndef CTRL
  31   #define CTRL(c) ((c) & 0x1F)
  32 #endif
  33 #define ALT(c) ((c) | 0xa0)
  34 #define DIE(M) { fprintf(stderr, M, progName); exit(1); }
  35 #define FREE(p) if (p) free(p)
  36 #define MIN(a, b) ((a) < (b) ? (a) : (b))
  37 #define MAX(a, b) ((a) > (b) ? (a) : (b))
  38 #define NORMAL A_NORMAL
  39 #define MARKED A_REVERSE
  40 #define MODIFIED A_BOLD
  41 #define ATTRPRINTW(attr, a) do { if (oldattr != (attr)) attrset(attr), oldattr = (attr); printw a; } while (0)
  42 #define MAXATTRPRINTW(attr, a) do { if (oldattr & (~(attr))) attrset(attr & oldattr), oldattr &= (attr); printw a; } while (0)
  43 #define PRINTW(a) ATTRPRINTW(NORMAL, a)
  44 #ifndef getnstr
  45   #define getnstr(str, n) wgetnstr(stdscr, str, n)
  46 #endif
  47
  48
  49 /*******************************************************************************/
  50 /* Configuration parameters */
  51 /*******************************************************************************/
  52 typedef enum { bySector, maximized, LAST } modeType;
  53 typedef struct {
  54   int blocSize, lineLength, page;
  55 } modeParams;
  56
  57 extern modeParams modes[LAST];
  58 extern modeType mode;
  59 extern int colored;
  60 extern char *usage;
  61
  62 #define pressAnyKey "(press any key)"
  63
  64
  65 /*******************************************************************************/
  66 /* Pages handling */
  67 /*******************************************************************************/
  68 typedef struct _typePage {
  69   struct _typePage *next;
  70
  71   off_t base;
  72   int size;
  73   unsigned char *vals;
  74 } typePage;
  75
  76
  77 /*******************************************************************************/
  78 /* Global variables */
  79 /*******************************************************************************/
  80
  81 extern off_t lastEditedLoc, biggestLoc, fileSize;
  82 extern off_t mark_min, mark_max, mark_set;
  83 extern off_t base, oldbase;
  84 extern int normalSpaces, cursor, cursorOffset, hexOrAscii;
  85 extern int cursor, blocSize, lineLength, colsUsed, page;
  86 extern int isReadOnly, fd, nbBytes, oldcursor, oldattr, oldcursorOffset;
  87 extern int sizeCopyBuffer, *bufferAttr;
  88 extern char *progName, *fileName, *baseName;
  89 extern unsigned char *buffer, *copyBuffer;
  90 extern typePage *edited;
  91
  92 extern char *lastFindFile, *lastYankToAFile, *lastAskHexString, *lastAskAsciiString, *lastFillWithStringHexa, *lastFillWithStringAscii;
  93
  94
  95 /*******************************************************************************/
  96 /* Miscellaneous functions declaration */
  97 /*******************************************************************************/
  98 off_t getfilesize(void);
  99 int key_to_function(int key);
 100 void init(void);
 101 void quit(void);
 102 int tryloc(off_t loc);
 103 void openFile(void);
 104 void readFile(void);
 105 int findFile(void);
 106 int computeLineSize(void);
 107 int computeCursorXCurrentPos(void);
 108 int computeCursorXPos(int cursor, int hexOrAscii);
 109 void updateMarked(void);
 110 int ask_about_save(void);
 111 int ask_about_save_and_redisplay(void);
 112 void ask_about_save_and_quit(void);
 113 int setTo(int c);
 114 void setToChar(int i, unsigned char c);
 115
 116 /*******************************************************************************/
 117 /* Pages handling functions declaration */
 118 /*******************************************************************************/
 119 void discardEdited(void);
 120 void addToEdited(off_t base, int size, unsigned char *vals);
 121 void removeFromEdited(off_t base, int size);
 122 typePage *newPage(off_t base, int size);
 123 void freePage(typePage *page);
 124
 125
 126 /*******************************************************************************/
 127 /* Cursor manipulation function declarations */
 128 /*******************************************************************************/
 129 int move_cursor(off_t delta);
 130 int set_cursor(off_t loc);
 131 int move_base(off_t delta);
 132 int set_base(off_t loc);
 133
 134 /*******************************************************************************/
 135 /* Curses functions declaration */
 136 /*******************************************************************************/
 137 void initCurses(void);
 138 void exitCurses(void);
 139 void display(void);
 140 void displayLine(int offset, int max);
 141 void clr_line(int line);
 142 void displayCentered(char *msg, int line);
 143 void displayOneLineMessage(char *msg);
 144 void displayTwoLineMessage(char *msg1, char *msg2);
 145 void displayMessageAndWaitForKey(char *msg);
 146 int displayMessageAndGetString(char *msg, char **last, char *p, int p_size);
 147 void ungetstr(char *s);
 148 int get_number(off_t *i);
 149
 150
 151 /*******************************************************************************/
 152 /* Search functions declaration */
 153 /*******************************************************************************/
 154 void search_forward(void);
 155 void search_backward(void);
 156
 157
 158 /*******************************************************************************/
 159 /* Mark functions declaration */
 160 /*******************************************************************************/
 161 void markRegion(off_t a, off_t b);
 162 void unmarkRegion(off_t a, off_t b);
 163 void markSelectedRegion(void);
 164 void unmarkAll(void);
 165 void markIt(int i);
 166 void unmarkIt(int i);
 167 void copy_region(void);
 168 void yank(void);
 169 void yank_to_a_file(void);
 170 void fill_with_string(void);
 171
 172
 173 /*******************************************************************************/
 174 /* Small common functions declaration */
 175 /*******************************************************************************/
 176 int streq(const char *s1, const char *s2);
 177 int strbeginswith(const char *a, const char *prefix);
 178 int myceil(int a, int b);
 179 off_t myfloor(off_t a, off_t b);
 180 int setLowBits(int p, int val);
 181 int setHighBits(int p, int val);
 182 char *strconcat3(char *a, char *b, char *c);
 183 int hexCharToInt(int c);
 184 int not(int b);
 185 #ifndef HAVE_MEMMEM
 186 char *mymemmem(char *a, size_t sizea, char *b, size_t sizeb);
 187 #else
 188 #define mymemmem(a,b,c,d) memmem(a,b,c,d)
 189 #endif
 190 #ifndef HAVE_MEMRMEM
 191 char *mymemrmem(char *a, size_t sizea, char *b, size_t sizeb);
 192 #else
 193 #define mymemrmem(a,b,c,d) memrmem(a,b,c,d)
 194 #endif
 195 int is_file(char *name);
 196 int hexStringToBinString(char *p, size_t *l);
 197
 198 #endif  /* HEXEDIT_H */