static char *crypt_md5_wrapper(const char *pass_new)
{
/*
* Code lifted from Marek Michalkiewicz's shadow suite. (CG)
* removed use of static variables (AGM)
*/
struct timeval tv;
MD5_CTX ctx;
unsigned char result[16];
char *cp = (char *) result;
unsigned char tmp[16];
int i;
char *x = NULL;
GoodMD5Init(&ctx);
gettimeofday(&tv, (struct timezone *) 0);
GoodMD5Update(&ctx, (void *) &tv, sizeof tv);
i = getpid();
GoodMD5Update(&ctx, (void *) &i, sizeof i);
i = clock();
GoodMD5Update(&ctx, (void *) &i, sizeof i);
GoodMD5Update(&ctx, result, sizeof result);
GoodMD5Final(tmp, &ctx);
strcpy(cp, "$1$"); /* magic for the MD5 */
cp += strlen(cp);
for (i = 0; i < 8; i++)
*cp++ = i64c(tmp[i] & 077);
*cp = '\0';
/* no longer need cleartext */
x = Goodcrypt_md5(pass_new, (const char *) result);
return x;
}
static char*
to64(char *s, unsigned v, int n)
{
while (--n >= 0) {
/* *s++ = ascii64[v & 0x3f]; */
*s++ = i64c(v);
v >>= 6;
}
return s;
}
/*
* l64a - convert a long to a string of radix 64 characters
*/
char *l64a(long l)
{
static char buf[8];
int i = 0;
if (l < 0L)
return ((char *) 0);
do {
buf[i++] = i64c ((int) (l % 64));
buf[i] = '\0';
} while (l /= 64L, l > 0 && i < 6);
return (buf);
}
/* <where> must point to a buffer of at least <length>+1 length */
static void
crypt_make_salt(char *where, int length)
{
struct timeval tv;
MD5_CTX ctx;
unsigned char tmp[16];
unsigned char *src = (unsigned char *)where;
int i;
#ifdef PAM_PATH_RANDOMDEV
int fd;
int rv;
if ((rv = fd = open(PAM_PATH_RANDOMDEV, O_RDONLY)) != -1) {
while ((rv = read(fd, where, length)) != length && errno == EINTR);
close (fd);
}
if (rv != length) {
#endif
/*
* Code lifted from Marek Michalkiewicz's shadow suite. (CG)
* removed use of static variables (AGM)
*
* will work correctly only for length <= 16 */
src = tmp;
GoodMD5Init(&ctx);
gettimeofday(&tv, (struct timezone *) 0);
GoodMD5Update(&ctx, (void *) &tv, sizeof tv);
i = getpid();
GoodMD5Update(&ctx, (void *) &i, sizeof i);
i = clock();
GoodMD5Update(&ctx, (void *) &i, sizeof i);
GoodMD5Update(&ctx, src, length);
GoodMD5Final(tmp, &ctx);
#ifdef PAM_PATH_RANDOMDEV
}
#endif
for (i = 0; i < length; i++)
*where++ = i64c(src[i] & 077);
*where = '\0';
}
