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(secmem_realloc): Take control information into account

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when testing for a resize.
This commit is contained in:
Werner Koch 2005-03-10 09:54:27 +00:00
parent 37f8183d05
commit b79b1b9399
2 changed files with 9 additions and 0 deletions
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5
util/ChangeLog
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@ -1,3 +1,8 @@
2005-03-10 Werner Koch <wk@g10code.com>
* secmem.c (secmem_realloc): Take control information into account
when testing for a resize.
2004-12-03 David Shaw <dshaw@jabberwocky.com> 2004-12-03 David Shaw <dshaw@jabberwocky.com>
* http.c (send_request): Include the port if non-80 in the Host: * http.c (send_request): Include the port if non-80 in the Host:

4
util/secmem.c
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@ -393,6 +393,10 @@ secmem_realloc( void *p, size_t newsize )
mb = (MEMBLOCK*)((char*)p - ((size_t) &((MEMBLOCK*)0)->u.aligned.c)); mb = (MEMBLOCK*)((char*)p - ((size_t) &((MEMBLOCK*)0)->u.aligned.c));
size = mb->size; size = mb->size;
if (size < sizeof(MEMBLOCK))
log_bug ("secure memory corrupted at block %p\n", mb);
size -= ((size_t) &((MEMBLOCK*)0)->u.aligned.c);
if( newsize < size ) if( newsize < size )
return p; /* it is easier not to shrink the memory */ return p; /* it is easier not to shrink the memory */
a = secmem_malloc( newsize ); a = secmem_malloc( newsize );