On 13 February 2014 00:01, <marti.ma...@littlecms.com> wrote:
> if something does not work, let us know
Another regression:
//gcc -o test test.c `pkg-config --cflags --libs lcms2` && ./test
#include <lcms2.h>
#include <stdlib.h>
#include <assert.h>
int
main(int argc, char *argv[])
{
cmsHPROFILE p;
cmsMLU *mlu;
int ret;
p = cmsCreate_sRGBProfileTHR(NULL);
/* set value */
mlu = cmsMLUalloc (NULL, 1);
ret = cmsMLUsetASCII (mlu, "en", "US", "bar");
assert (ret);
ret = cmsWriteTag (p, cmsSigDeviceMfgDescTag, mlu);
assert (ret);
cmsMLUfree (mlu);
/* remove the tag -- NOTE: this fails, it probably should succeed */
ret = cmsWriteTag (p, cmsSigDeviceMfgDescTag, NULL);
//assert (ret);
/* THIS EXPLODES */
cmsCloseProfile(p);
return 0;
}
Using 2.5 I get a profile without a cmsSigDeviceMfgDescTag, using 2.6
I get: double free or corruption; bt looks like this:
#2 0x00007ffff7839d04 in __libc_message (do_abort=do_abort@entry=2,
fmt=fmt@entry=0x7ffff7940528 "*** Error in `%s': %s: 0x%s ***\n") at
../sysdeps/posix/libc_fatal.c:175
#3 0x00007ffff7840ff8 in malloc_printerr (ptr=<optimized out>,
str=0x7ffff7940600 "double free or corruption (!prev)", action=3) at
malloc.c:4930
#4 _int_free (av=0x7ffff7b7c760 <main_arena>, p=<optimized out>,
have_lock=0) at malloc.c:3782
#5 0x00007ffff7bad72a in cmsMLUfree (mlu=0x605100) at cmsnamed.c:285
#6 0x00007ffff7b9ae43 in cmsCloseProfile (hProfile=0x6041b0) at cmsio0.c:1393
#7 0x0000000000400965 in main ()
Note. If I'm not supposed to use cmsWriteTag(NULL) to remove a tag,
then I need some other way to do this. And if cmsWriteTag() is
supposed to fail, it should probably not make the cmsCloseProfile()
explode...
Richard.
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