static int
unix_bytes(unsigned char *outdata, int size)
{
ssize_t count;
int fd;
if (size < 0)
return 0;
else if (size == 0)
return 1;
fd = _hc_unix_device_fd(O_RDONLY, NULL);
if (fd < 0)
return 0;
while (size > 0) {
count = read(fd, outdata, size);
if (count < 0 && errno == EINTR)
continue;
else if (count <= 0) {
close(fd);
return 0;
}
outdata += count;
size -= count;
}
close(fd);
return 1;
}
const char *
RAND_file_name(char *filename, size_t size)
{
const char *e = NULL;
int pathp = 0, ret;
if (!issuid()) {
e = getenv("RANDFILE");
if (e == NULL)
e = getenv("HOME");
if (e)
pathp = 1;
}
#ifndef _WIN32
/*
* Here we really want to call getpwuid(getuid()) but this will
* cause recursive lookups if the nss library uses
* gssapi/krb5/hcrypto to authenticate to the ldap servers.
*
* So at least return the unix /dev/random if we have one
*/
if (e == NULL) {
int fd;
fd = _hc_unix_device_fd(O_RDONLY, &e);
if (fd >= 0)
close(fd);
}
#else /* Win32 */
if (e == NULL) {
char profile[MAX_PATH];
if (SHGetFolderPath(NULL, CSIDL_LOCAL_APPDATA, NULL,
SHGFP_TYPE_CURRENT, profile) == S_OK) {
ret = snprintf(filename, size, "%s\\.rnd", profile);
if (ret > 0 && ret < size)
return filename;
}
}
#endif
if (e == NULL)
return NULL;
if (pathp)
ret = snprintf(filename, size, "%s/.rnd", e);
else
ret = snprintf(filename, size, "%s", e);
if (ret <= 0 || ret >= size)
return NULL;
return filename;
}
static int
unix_status(void)
{
int fd;
fd = _hc_unix_device_fd(O_RDONLY, NULL);
if (fd < 0)
return 0;
close(fd);
return 1;
}
static void
unix_seed(const void *indata, int size)
{
int fd;
if (size <= 0)
return;
fd = _hc_unix_device_fd(O_WRONLY, NULL);
if (fd < 0)
return;
write(fd, indata, size);
close(fd);
}
