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/*
* File dump.c - dump a file/device both in hex and in ASCII.
Written by Eric Youngdale (1993).
Copyright 1993 Yggdrasil Computing, Incorporated
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
static char rcsid[] ="$Id: dump.c,v 1.2 1997/02/23 19:10:49 eric Rel $";
#include "../config.h"
#include <stdio.h>
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#include <sys/ioctl.h>
#else
#include <termio.h>
#endif
#include <signal.h>
FILE * infile;
int file_addr;
unsigned char buffer[256];
unsigned char search[64];
#define PAGE 256
#ifdef HAVE_TERMIOS_H
struct termios savetty;
struct termios newtty;
#else
struct termio savetty;
struct termio newtty;
#endif
reset_tty(){
#ifdef HAVE_TERMIOS_H
if(tcsetattr(0, TCSANOW, &savetty) == -1)
#else
if(ioctl(0, TCSETAF, &savetty)==-1)
#endif
{
printf("cannot put tty into normal mode\n");
exit(1);
}
}
set_tty(){
#ifdef HAVE_TERMIOS_H
if(tcsetattr(0, TCSANOW, &newtty) == -1)
#else
if(ioctl(0, TCSETAF, &newtty)==-1)
#endif
{
printf("cannot put tty into raw mode\n");
exit(1);
}
}
/* Come here when we get a suspend signal from the terminal */
void
onsusp (int sig)
{
/* ignore SIGTTOU so we don't get stopped if csh grabs the tty */
signal(SIGTTOU, SIG_IGN);
reset_tty ();
fflush (stdout);
signal(SIGTTOU, SIG_DFL);
/* Send the TSTP signal to suspend our process group */
signal(SIGTSTP, SIG_DFL);
/* sigsetmask(0);*/
kill (0, SIGTSTP);
/* Pause for station break */
/* We're back */
signal (SIGTSTP, onsusp);
set_tty ();
}
crsr2(int row, int col){
printf("\033[%d;%dH",row,col);
}
showblock(int flag){
unsigned int k;
int i, j;
lseek(fileno(infile), file_addr, 0);
read(fileno(infile), buffer, sizeof(buffer));
if(flag) {
for(i=0;i<16;i++){
crsr2(i+3,1);
printf("%8.8x ",file_addr+(i<<4));
for(j=15;j>=0;j--){
printf("%2.2x",buffer[(i<<4)+j]);
if(!(j & 0x3)) printf(" ");
};
for(j=0;j< 16;j++){
k = buffer[(i << 4) + j];
if(k >= ' ' && k < 0x80) printf("%c",k);
else printf(".");
};
}
};
crsr2(20,1);
printf(" Zone, zone offset: %6x %4.4x ",file_addr>>11, file_addr & 0x7ff);
fflush(stdout);
}
getbyte()
{
char c1;
c1 = buffer[file_addr & (PAGE-1)];
file_addr++;
if ((file_addr & (PAGE-1)) == 0) showblock(0);
return c1;
}
main(int argc, char * argv[]){
char c;
int nbyte;
int i,j;
if(argc < 2) return 0;
infile = fopen(argv[1],"rb");
for(i=0;i<30;i++) printf("\n");
file_addr = 0;
/* Now setup the keyboard for single character input. */
#ifdef HAVE_TERMIOS_H
if(tcgetattr(0, &savetty) == -1)
#else
if(ioctl(0, TCGETA, &savetty) == -1)
#endif
{
printf("stdin must be a tty\n");
exit(1);
}
newtty=savetty;
newtty.c_lflag&=~ICANON;
newtty.c_lflag&=~ECHO;
newtty.c_cc[VMIN]=1;
set_tty();
signal(SIGTSTP, onsusp);
do{
if(file_addr < 0) file_addr = 0;
showblock(1);
read (0, &c, 1);
if (c == 'a') file_addr -= PAGE;
if (c == 'b') file_addr += PAGE;
if (c == 'g') {
crsr2(20,1);
printf("Enter new starting block (in hex):");
scanf("%x",&file_addr);
file_addr = file_addr << 11;
crsr2(20,1);
printf(" ");
};
if (c == 'f') {
crsr2(20,1);
printf("Enter new search string:");
fgets(search,sizeof(search),stdin);
while(search[strlen(search)-1] == '\n') search[strlen(search)-1] = 0;
crsr2(20,1);
printf(" ");
};
if (c == '+') {
while(1==1){
while(1==1){
c = getbyte(&file_addr);
if (c == search[0]) break;
};
for (j=1;j<strlen(search);j++)
if(search[j] != getbyte()) break;
if(j==strlen(search)) break;
};
file_addr &= ~(PAGE-1);
showblock(1);
};
if (c == 'q') break;
} while(1==1);
reset_tty();
fclose(infile);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.