text-utils/hexdump.h

   1 /*
   2  * Copyright (c) 1989 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)hexdump.h   5.4 (Berkeley) 6/1/90
  34  */
  35 #include "c.h"
  36 #include "list.h"
  37
  38 struct hexdump_clr {
  39         struct list_head colorlist;     /* next color unit */
  40         const char *fmt;                /* the color, UL_COLOR_* */
  41         off_t offt;                     /* offset where unit is valid... */
  42         int range;                      /* ... and it's range */
  43         int val;                        /* value ... */
  44         char *str;                      /* ... or string to match */
  45         int invert;                     /* invert condition? */
  46 };
  47
  48 struct hexdump_pr {
  49         struct list_head prlist;                /* next print unit */
  50 #define F_ADDRESS       0x001           /* print offset */
  51 #define F_BPAD          0x002           /* blank pad */
  52 #define F_C             0x004           /* %_c */
  53 #define F_CHAR          0x008           /* %c */
  54 #define F_DBL           0x010           /* %[EefGf] */
  55 #define F_INT           0x020           /* %[di] */
  56 #define F_P             0x040           /* %_p */
  57 #define F_STR           0x080           /* %s */
  58 #define F_U             0x100           /* %_u */
  59 #define F_UINT          0x200           /* %[ouXx] */
  60 #define F_TEXT          0x400           /* no conversions */
  61         unsigned int flags;             /* flag values */
  62         int bcnt;                       /* byte count */
  63         char *cchar;                    /* conversion character */
  64         struct list_head *colorlist;    /* color settings */
  65         char *fmt;                      /* printf format */
  66         char *nospace;                  /* no whitespace version */
  67 };
  68
  69 struct hexdump_fu {
  70         struct list_head fulist;                /* next format unit */
  71         struct list_head prlist;                /* next print unit */
  72 #define F_IGNORE        0x01            /* %_A */
  73 #define F_SETREP        0x02            /* rep count set, not default */
  74         unsigned int flags;             /* flag values */
  75         int reps;                       /* repetition count */
  76         int bcnt;                       /* byte count */
  77         char *fmt;                      /* format string */
  78 };
  79
  80 struct hexdump_fs {                     /* format strings */
  81         struct list_head fslist;                /* linked list of format strings */
  82         struct list_head fulist;                /* linked list of format units */
  83         int bcnt;
  84 };
  85
  86 struct hexdump {
  87   struct list_head fshead;                              /* head of format strings */
  88   ssize_t blocksize;                    /* data block size */
  89   int exitval;                          /* final exit value */
  90   ssize_t length;                       /* max bytes to read */
  91   off_t skip;                           /* bytes to skip */
  92 };
  93
  94 extern struct hexdump_fu *endfu;
  95
  96 enum _vflag { ALL, DUP, FIRST, WAIT };  /* -v values */
  97 extern enum _vflag vflag;
  98
  99 int block_size(struct hexdump_fs *);
 100 void add_fmt(const char *, struct hexdump *);
 101 void rewrite_rules(struct hexdump_fs *, struct hexdump *);
 102 void addfile(char *, struct hexdump *);
 103 void display(struct hexdump *);
 104 void __attribute__((__noreturn__)) usage(void);
 105 void conv_c(struct hexdump_pr *, u_char *);
 106 void conv_u(struct hexdump_pr *, u_char *);
 107 int  next(char **, struct hexdump *);
 108 int parse_args(int, char **, struct hexdump *);