diff options
| -rw-r--r-- | sbin/isakmpd/util.c | 56 |
1 files changed, 54 insertions, 2 deletions
diff --git a/sbin/isakmpd/util.c b/sbin/isakmpd/util.c index 666d45b219e..0c4362a2aba 100644 --- a/sbin/isakmpd/util.c +++ b/sbin/isakmpd/util.c @@ -1,5 +1,5 @@ -/* $OpenBSD: util.c,v 1.8 2000/10/13 13:22:02 niklas Exp $ */ -/* $EOM: util.c,v 1.17 2000/10/13 13:04:16 ho Exp $ */ +/* $OpenBSD: util.c,v 1.9 2000/10/16 23:27:03 niklas Exp $ */ +/* $EOM: util.c,v 1.19 2000/10/14 23:40:08 angelos Exp $ */ /* * Copyright (c) 1998, 1999 Niklas Hallqvist. All rights reserved. @@ -71,6 +71,29 @@ decode_32 (u_int8_t *cp) return cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3]; } +u_int64_t +decode_64 (u_int8_t *cp) +{ + return ((u_int64_t) cp[0] << 56) | ((u_int64_t) cp[1] << 48) | + ((u_int64_t) cp[2] << 40) | ((u_int64_t) cp[3] << 32) | + cp[4] << 24 | cp[5] << 16 | cp[6] << 8 | cp[7]; +} + +void +decode_128 (u_int8_t *cp, u_int8_t *cpp) +{ + int i; + +#if BYTE_ORDER == LITTLE_ENDIAN + for (i = 0; i < 16; i++) + cpp[i] = cp[15 - i]; +#elif BYTE_ORDER == BIG_ENDIAN + bcopy (cp, cpp, 16); +#else +#error "Byte order unknown!" +#endif +} + void encode_16 (u_int8_t *cp, u_int16_t x) { @@ -87,6 +110,25 @@ encode_32 (u_int8_t *cp, u_int32_t x) *cp = x & 0xff; } +void +encode_64 (u_int8_t *cp, u_int64_t x) +{ + *cp++ = x >> 56; + *cp++ = (x >> 48) & 0xff; + *cp++ = (x >> 40) & 0xff; + *cp++ = (x >> 32) & 0xff; + *cp++ = (x >> 24) & 0xff; + *cp++ = (x >> 16) & 0xff; + *cp++ = (x >> 8) & 0xff; + *cp = x & 0xff; +} + +void +encode_128 (u_int8_t *cp, u_int8_t *cpp) +{ + decode_128 (cpp, cp); +} + /* Check a buffer for all zeroes. */ int zero_test (const u_int8_t *p, size_t sz) @@ -97,6 +139,16 @@ zero_test (const u_int8_t *p, size_t sz) return 1; } +/* Check a buffer for all ones. */ +int +ones_test (const u_int8_t *p, size_t sz) +{ + while (sz-- > 0) + if (*p++ != 0xff) + return 0; + return 1; +} + /* * Generate a random data, len bytes long. */ |