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Pull in some more bits from /dev/urandom periodically.

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@3628 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Dave Peticolas 2001-02-09 07:36:02 +00:00
parent 990f692e74
commit 0cb7f80a35
1 changed files with 20 additions and 0 deletions
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20
src/engine/guid.c
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@ -372,9 +372,12 @@ guid_init_only_salt(const void *salt, size_t salt_len)
guid_initialized = TRUE;
}
#define GUID_PERIOD 5000
void
guid_new(GUID *guid)
{
static int counter = 0;
struct md5_ctx ctx;
if (guid == NULL)
@ -389,6 +392,23 @@ guid_new(GUID *guid)
/* update the global context */
init_from_time();
if (counter == 0)
{
FILE *fp;
fp = fopen ("/dev/urandom", "r");
if (fp == NULL)
return;
init_from_stream(fp, 32);
fclose(fp);
counter = GUID_PERIOD;
}
counter--;
}
/* needs 32 bytes exactly, doesn't print a null char */