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ble_mesh: Fix wrong log output with bt_hex

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- This issue was introduced in the commit: a788e7cd3d
  which updated the bt_hex() function incorrectly.
- And in bt_hex(), we use 2 for the two-dimensional array, because currently
  at most two bt_hex() will be used at the same time. Also this will save
  some DRAM compared with using 4.
This commit is contained in:
lly 2020-06-10 10:47:30 +08:00 committed by bot
parent 4f22be795d
commit 939a3b78e2
1 changed files with 7 additions and 2 deletions
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9
components/bt/esp_ble_mesh/mesh_common/mesh_util.c
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@ -17,11 +17,16 @@
const char *bt_hex(const void *buf, size_t len) const char *bt_hex(const void *buf, size_t len)
{ {
static const char hex[] = "0123456789abcdef"; static const char hex[] = "0123456789abcdef";
static char str[129]; static char hexbufs[2][129];
static u8_t curbuf;
const u8_t *b = buf; const u8_t *b = buf;
char *str = NULL;
int i; int i;
len = MIN(len, (sizeof(str) - 1) / 2); str = hexbufs[curbuf++];
curbuf %= ARRAY_SIZE(hexbufs);
len = MIN(len, (sizeof(hexbufs[0]) - 1) / 2);
for (i = 0; i < len; i++) { for (i = 0; i < len; i++) {
str[i * 2] = hex[b[i] >> 4]; str[i * 2] = hex[b[i] >> 4];