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coverity: separate crypto1 fcts ARM<>host into create/destroy and init/deinit

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This commit is contained in:
Philippe Teuwen 2019-10-18 16:58:24 +02:00
commit 39fd6b1910
8 changed files with 49 additions and 43 deletions
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35
common/crapto1/crypto1.c
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@ -25,38 +25,37 @@
#define SWAPENDIAN(x)\
(x = (x >> 8 & 0xff00ff) | (x & 0xff00ff) << 8, x = x >> 16 | x << 16)
#if defined(__arm__) && !defined(__linux__) && !defined(_WIN32) && !defined(__APPLE__) // bare metal ARM Proxmark lacks malloc()/free()
void crypto1_create(struct Crypto1State *s, uint64_t key) {
void crypto1_init(struct Crypto1State *state, uint64_t key) {
state->odd = 0;
state->even = 0;
int i;
for (i = 47; s && i > 0; i -= 2) {
s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7);
s->even = s->even << 1 | BIT(key, i ^ 7);
for (i = 47; state && i > 0; i -= 2) {
state->odd = state->odd << 1 | BIT(key, (i - 1) ^ 7);
state->even = state->even << 1 | BIT(key, i ^ 7);
}
return;
}
void crypto1_destroy(struct Crypto1State *state) {
void crypto1_deinit(struct Crypto1State *state) {
state->odd = 0;
state->even = 0;
}
#else
#if !defined(__arm__) || defined(__linux__) || defined(_WIN32) || defined(__APPLE__) // bare metal ARM Proxmark lacks malloc()/free()
struct Crypto1State *crypto1_create(uint64_t key) {
struct Crypto1State *s = malloc(sizeof(*s));
if (!s) return NULL;
s->odd = s->even = 0;
int i;
for (i = 47; i > 0; i -= 2) {
s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7);
s->even = s->even << 1 | BIT(key, i ^ 7);
}
return s;
struct Crypto1State *state = malloc(sizeof(*state));
if (!state) return NULL;
crypto1_init(state, key);
return state;
}
void crypto1_destroy(struct Crypto1State *state) {
free(state);
}
#endif
void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr) {
int i;
for (*lfsr = 0, i = 23; i >= 0; --i) {