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tcp, udp, util: Fixes for bitmap handling on big-endian, casts

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Bitmap manipulating functions would otherwise refer to inconsistent
sets of bits on big-endian architectures. While at it, fix up a
couple of casts.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2022-01-25 20:21:18 +01:00
commit caa22aa644
5 changed files with 16 additions and 7 deletions

12
util.c
View file

@ -342,7 +342,9 @@ int timespec_diff_ms(struct timespec *a, struct timespec *b)
*/
void bitmap_set(uint8_t *map, int bit)
{
map[bit / 8] |= 1 << (bit % 8);
unsigned long *word = (unsigned long *)map + BITMAP_WORD(bit);
*word |= BITMAP_BIT(bit);
}
/**
@ -352,7 +354,9 @@ void bitmap_set(uint8_t *map, int bit)
*/
void bitmap_clear(uint8_t *map, int bit)
{
map[bit / 8] &= ~(1 << (bit % 8));
unsigned long *word = (unsigned long *)map + BITMAP_WORD(bit);
*word &= ~BITMAP_BIT(bit);
}
/**
@ -364,7 +368,9 @@ void bitmap_clear(uint8_t *map, int bit)
*/
int bitmap_isset(const uint8_t *map, int bit)
{
return map[bit / 8] & (1 << bit % 8);
unsigned long *word = (unsigned long *)map + BITMAP_WORD(bit);
return *word & BITMAP_BIT(bit);
}
/**