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/* This software was written by Dirk Engling <erdgeist@erdgeist.org>
It is considered beerware. Prost. Skol. Cheers or whatever.
$id$ */
#ifndef OT_SCAN_H__
#define OT_SCAN_H__
#include <stddef.h>
#include <stddef.h>
#include <stdint.h>
/* Read an unsigned decimal number from src into dest and return how many
characters were consumed. Returns zero and leaves dest untouched when src
does not begin with a digit, or when the value would exceed max. */
size_t scan_uint(const char *src, uint64_t *dest, uint64_t max);
/* As scan_uint, but following the bencode integer grammar, which permits a
leading zero on zero alone. */
size_t scan_uint_bencode(const char *src, uint64_t *dest, uint64_t max);
/* Read a signed decimal number that has to take up exactly len characters,
which is how a value lifted out of a query string arrives. Returns 0, or
-1 leaving dest untouched. */
int scan_int(const char *src, size_t len, int64_t *dest);
#endif
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