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Initialize the random number generator from /dev/urandom, if available. (CVS 2258)

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FossilOrigin-Name: aab8e7f8d81ffa786d5fae5a13963c6e58a8eefc
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drh
2005-01-21 17:53:17 +00:00
parent 0602c2e4a5
commit 842b864118
3 changed files with 17 additions and 11 deletions
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14
src/os_unix.c
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@@ -1183,10 +1183,16 @@ int sqlite3OsRandomSeed(char *zBuf){
memset(zBuf, 0, 256);
#if !defined(SQLITE_TEST)
{
int pid;
time((time_t*)zBuf);
pid = getpid();
memcpy(&zBuf[sizeof(time_t)], &pid, sizeof(pid));
int pid, fd;
fd = open("/dev/urandom", O_RDONLY);
if( fd<0 ){
time((time_t*)zBuf);
pid = getpid();
memcpy(&zBuf[sizeof(time_t)], &pid, sizeof(pid));
}else{
read(fd, zBuf, 256);
close(fd);
}
}
#endif
return SQLITE_OK;