Very Computer

by **Harlan Lefevr** » Fri, 14 Aug 1998 04:00:00

I have several large binary files written by SunOS4.1.3 as short ints.
The files are read OK by linux using :
fread ( (char *) &bm[t][a][b][c][d],2,1,fp);

but the values are incorrect. Does anyone have a mapping between Sun
binary
and i386 binary so that I can translate the files for linux? My
observations of the
differences using od -tdS leave me confused.

Thanks,
Harlan

by **vi..** » Tue, 18 Aug 1998 04:00:00

: I have several large binary files written by SunOS4.1.3 as short ints.
: The files are read OK by linux using :
: fread ( (char *) &bm[t][a][b][c][d],2,1,fp);

If there are only short int, library function swab should help you.

If there are longs and, especially doubles, things might be more
complicated
: but the values are incorrect. Does anyone have a mapping between Sun
: binary

Mapping (both ways is)
short int a=(signed short)((unsigned short a)>>8 |a<<8);

ie 0x1234->0x3412 and vice versa.

Same for long
0x12345678 -> 0x78563412

split number into bytes and put these bytes in reverse order
: and i386 binary so that I can translate the files for linux? My
: observations of the
: differences using od -tdS leave me confused.

: Thanks,
: Harlan

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by **Dinh-Tuan Pha** » Thu, 27 Aug 1998 04:00:00

> I have several large binary files written by SunOS4.1.3 as short ints.
> The files are read OK by linux using :
> fread ( (char *) &bm[t][a][b][c][d],2,1,fp);

> but the values are incorrect. Does anyone have a mapping between Sun

I think that Sun is a big-endian while the PC intel is a
little-endian, meaning that the byte order is reverse. have ypu tried
to reverse the byte order ?

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Very Computer

Translating Sun short binary to linux short binary?

Translating Sun short binary to linux short binary?

Translating Sun short binary to linux short binary?

Translating Sun short binary to linux short binary?