mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
42 lines
2.3 KiB
C
42 lines
2.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/bits/safemacros.internal.h"
|
|
#include "libc/macros.internal.h"
|
|
#include "libc/str/str.h"
|
|
|
|
/**
|
|
* Copies string, the BSD way.
|
|
*
|
|
* @param d is buffer which needn't be initialized
|
|
* @param s is a NUL-terminated string
|
|
* @param n is byte capacity of d
|
|
* @return strlen(s)
|
|
* @note d and s can't overlap
|
|
* @note we prefer memccpy()
|
|
*/
|
|
size_t strlcpy(char *d, const char *s, size_t n) {
|
|
size_t slen, actual;
|
|
slen = strlen(s);
|
|
if (n) {
|
|
actual = MIN(n - 1, slen);
|
|
memcpy(d, s, actual);
|
|
d[actual] = '\0';
|
|
}
|
|
return slen;
|
|
}
|