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