1 /* SPDX-License-Identifier: LGPL-2.1 OR MIT */
4  * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
21 	size_t	len;  member
25 /* Buffer used to store int-to-ASCII conversions. Will only be implemented if
27  * store "18446744073709551615" or "-9223372036854775808" and the final zero.
38 	return j >= 0 ? j : -j;  in abs()
44 	return j >= 0 ? j : -j;  in labs()
50 	return j >= 0 ? j : -j;  in llabs()
69 	if (*s == '-') {  in atol()
75 		d = (*s++) - '0';  in atol()
82 	return neg ? -ret : ret;  in atol()
100 	munmap(heap, heap->len);  in free()
127 void *malloc(size_t len)  in malloc()  argument
132 	len  = sizeof(*heap) + len;  in malloc()
133 	len  = (len + 4095UL) & -4096UL;  in malloc()
134 	heap = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE,  in malloc()
135 		    -1, 0);  in malloc()
139 	heap->len = len;  in malloc()
140 	return heap->user_p;  in malloc()
171 	user_p_len = heap->len - sizeof(*heap);  in realloc()
184 	memcpy(ret, heap->user_p, user_p_len);  in realloc()
185 	munmap(heap, heap->len);  in realloc()
191  * trailing zero (17 bytes for "ffffffffffffffff" or 9 for "ffffffff"). The
206 		in -= (uint64_t)dig << pos;  in utoh_r()
207 		pos -= 4;  in utoh_r()
210 				dig += 'a' - '0' - 10;  in utoh_r()
231  * trailing zero (21 bytes for 18446744073709551615 in 64-bit, 11 for
232  * 4294967295 in 32-bit). The buffer is filled from the first byte, and the
251 				in -= lim;  in utoa_r()
254 	} while (pos--);  in utoa_r()
262  * trailing zero (21 bytes for -9223372036854775808 in 64-bit, 12 for
263  * -2147483648 in 32-bit). The buffer is filled from the first byte, and the
270 	int len = 0;  in itoa_r()  local
273 		in = -(unsigned long)in;  in itoa_r()
274 		*(ptr++) = '-';  in itoa_r()
275 		len++;  in itoa_r()
277 	len += utoa_r(in, ptr);  in itoa_r()
278 	return len;  in itoa_r()
321 /* Converts the unsigned 64-bit integer <in> to its hex representation into
340 			/* 32-bit platforms: avoid a 64-bit shift */  in u64toh_r()
345 			dig += 'a' - '0' - 10;  in u64toh_r()
346 		pos -= 4;  in u64toh_r()
365 /* Converts the unsigned 64-bit integer <in> to its string representation into
387 				in -= lim;  in u64toa_r()
390 	} while (pos--);  in u64toa_r()
396 /* Converts the signed 64-bit integer <in> to its string representation into
398  * trailing zero (21 bytes for -9223372036854775808). The buffer is filled from
406 	int len = 0;  in i64toa_r()  local
409 		in = -(uint64_t)in;  in i64toa_r()
410 		*(ptr++) = '-';  in i64toa_r()
411 		len++;  in i64toa_r()
413 	len += u64toa_r(in, ptr);  in i64toa_r()
414 	return len;  in i64toa_r()
442 	uintmax_t val = 0, limit, old_val;  in __strtox()  local
455 	} else if (*nptr == '-') {  in __strtox()
461 		limit = -(uintmax_t)lower_limit;  in __strtox()
463 		limit = upper_limit;  in __strtox()
480 			c -= '0';  in __strtox()
482 			c = c - 'a' + 10;  in __strtox()
484 			c = c - 'A' + 10;  in __strtox()
496 		if (val > limit || val < old_val)  in __strtox()
503 		val = limit;  in __strtox()
507 	return neg ? -val : val;  in __strtox()