fusl/src/string/strndup.c

#include <stdlib.h>
#include <string.h>

char* strndup(const char* s, size_t n) {
  size_t l = strnlen(s, n);
  char* d = malloc(l + 1);
  if (!d)
    return NULL;
  memcpy(d, s, l);
  d[l] = 0;
  return d;
}