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nostrdb: add supporting files for the bolt11 parser

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A lot of this was pulled from core-lightning. Not sure what is actually
needed or not.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2023-12-22 16:48:50 -08:00
committed by Daniel D’Aquino
parent 389c2c9695
commit cc75a8450a
46 changed files with 7665 additions and 438 deletions
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43
nostrdb/bolt11/overflows.h Normal file
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#ifndef LIGHTNING_COMMON_OVERFLOWS_H
#define LIGHTNING_COMMON_OVERFLOWS_H
#include "../config.h"
#include "short_types.h"
static inline bool add_overflows_size_t(uint64_t a, uint64_t b)
{
return (size_t)a != a || (size_t)b != b || (a + b) < (size_t)a;
}
static inline bool add_overflows_u64(uint64_t a, uint64_t b)
{
return (a + b) < a;
}
static inline bool mul_overflows_u64(uint64_t a, uint64_t b)
{
uint64_t ret;
if (a == 0)
return false;
ret = a * b;
return (ret / a != b);
}
static inline bool assign_overflow_u8(u8 *dst, uint64_t v)
{
*dst = v;
return *dst == v;
}
static inline bool assign_overflow_u16(u16 *dst, uint64_t v)
{
*dst = v;
return *dst == v;
}
static inline bool assign_overflow_u32(u32 *dst, uint64_t v)
{
*dst = (u32)v;
return *dst == v;
}
#endif /* LIGHTNING_COMMON_OVERFLOWS_H */