/*
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * For more information, please refer to <https://unlicense.org>
 */

/* https://git.datadissipation.net */
#ifndef STRDUP_H_
 #define STRDUP_H_      1

 #ifdef STRDUP_INCLUDE_LIBC
  #include <stdlib.h>
  #include <string.h>
 #endif /* STRDUP_INCLUDE_LIBC */

 #ifndef HAVE_STRDUP
  #define HAVE_STRDUP   1
  #define strdup        i_strdup_
  #define strndup       i_strndup_
char *i_strdup_(const char *s);
char *i_strndup_(const char *s, size_t n);
 #endif /* !HAVE_STRDUP */

 #ifdef STRDUP_IMPLEMENTATION
char *
i_strdup_(const char *s)
{
	/* avoid calling strlen twice by passing the maximum */
	return i_strndup_(s, ~(size_t)0);
}

char *
i_strndup_(const char *s, size_t n)
{
	char *d;
	size_t t;

	t = strlen(s) + 1;
	t = t < n ? t : n;
	d = malloc(t);

	if (!d) return NULL;
	*(d + t) = '\0';

	return memcpy(d, s, t - 1);
}
 #endif /* STRDUP_IMPLEMENTATION */
#endif /* !STRDUP_H_ */