10-09-2004
Need to convert Binary files to ascii
Dear Experts
I need to read a binary file. I know for example in byte number 3801-3804 there is a 4 byte number embeded. Is there a way to extract this number from this file and then convert it to ascii via unix??
Your help would be highly appreciated.
Very Best Regards
Reza
Last edited by Reza Nazarian; 10-09-2004 at 09:24 AM..
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BYTEORDER(3) BSD Library Functions Manual BYTEORDER(3)
NAME
htonl, htons, ntohl, ntohs -- convert values between host and network byte order
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <arpa/inet.h>
uint32_t
htonl(uint32_t hostlong);
uint16_t
htons(uint16_t hostshort);
uint32_t
ntohl(uint32_t netlong);
uint16_t
ntohs(uint16_t netshort);
DESCRIPTION
These routines convert 16 and 32 bit quantities between network byte order and host byte order. (Network byte order is big endian, or most
significant byte first.) On machines which have a byte order which is the same as the network order, routines are defined as null macros.
These routines are most often used in conjunction with Internet addresses and ports as returned by gethostbyname(3) and getservent(3).
SEE ALSO
gethostbyname(3), getservent(3)
STANDARDS
The byteorder functions are expected to conform with IEEE Std POSIX.1-200x (``POSIX.1'').
HISTORY
The byteorder functions appeared in 4.2BSD.
BUGS
On the VAX bytes are handled backwards from most everyone else in the world. This is not expected to be fixed in the near future.
BSD
June 4, 1993 BSD