On Wed, Nov 22, 2006 at 10:00:58PM +0700, Jens Herden wrote:
> I've got a problem with the creation of openSUSE-10.2-Beta2-Addon-BiArch.iso
> from the beta1 iso and the delta.
> I have checked many times the beta1 iso and the delta and the md5sums are
> correct there. But when I create the new beta2 iso from them the md5sum does
> not match. I have done this three times already and I get always the same
> wrong md5sum.
>
> I remember that I have seen a mail somewhere about this problem but no answer
> that could help.
>
> Any help available?
The system where you run applydeltaiso must be a SUSE system (i.e.
the bzip2 library must compress with maxlen=20). The next version
of deltarpm will detect if the version is incorrect.
The attached program checks the bzip2 version, it should output
"CFILE_COMP_BZ_20". Compile with "-lbz2".
Cheers,
Michael.
--
Michael Schroeder [EMAIL PROTECTED]
main(_){while(_=~getchar())putchar(~_-1/(~(_|32)/13*2-11)*13);}
#include <stdio.h>
#include <stdlib.h>
#include <bzlib.h>
bz_stream bz;
main()
{
unsigned char buf[4096], *bp, obuf[8192];
unsigned int x1, x2;
int i, j, r;
unsigned int d = 0;
if (BZ2_bzCompressInit(&bz, 9, 0, 30) != BZ_OK)
{
fprintf(stderr, "BZ2_bzCompressInit failed\n");
exit(1);
}
x1 = 0x4568;
x2 = 0xab3c;
for (i = 0; i < 100; i++)
{
for (bp = buf, j = 4096; j--;)
{
x2 = 0x33ff * x2 + (0x33ff * x1 << 16) + 0x5230;
x1 = x2 >> 16 & 0xffff;
x2 &= 0xffff;
*bp++ = (unsigned char)(x1 >> 7);
}
bz.avail_in = 4096;
bz.next_in = (char *)buf;
bz.avail_out = sizeof(obuf);
bz.next_out = (char *)obuf;
if (BZ2_bzCompress(&bz, BZ_RUN) != BZ_RUN_OK)
{
fprintf(stderr, "BZ2_bzCompress failed\n");
exit(1);
}
if (bz.avail_in)
{
fprintf(stderr, "BZ2_bzCompress did not use all data\n");
exit(1);
}
for (bp = obuf, j = (unsigned char *)bz.next_out - obuf; j--;)
d = ((d & 0x7fffffff) << 1) ^ ((d >> 31) & 1) ^ *bp++;
}
for (;;)
{
bz.avail_in = 0;
bz.next_in = (char *)buf;
bz.avail_out = sizeof(obuf);
bz.next_out = (char *)obuf;
r = BZ2_bzCompress(&bz, BZ_FINISH);
if (r != BZ_FINISH_OK && r != BZ_STREAM_END)
{
fprintf(stderr, "BZ2_bzCompress failed\n");
exit(1);
}
for (bp = obuf, j = (unsigned char *)bz.next_out - obuf; j--;)
d = ((d & 0x7fffffff) << 1) ^ ((d >> 31) & 1) ^ *bp++;
if (r == BZ_STREAM_END)
break;
}
if (d == 0xa77422f7)
printf("CFILE_COMP_BZ_17\n");
else if (d == 0x79c62888)
printf("CFILE_COMP_BZ_20\n");
else
{
fprintf(stderr, "unknown bzip2 compression algorithm!\n");
exit(1);
}
exit(0);
}
