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/* See LICENSE file for copyright and license details. */
#include "libsimple.h"
char *
libsimple_strndup(const char *s, size_t n) /* FIXME */
{
char *ret;
size_t m = strlen(s);
n = MIN(n, m);
if (n == SIZE_MAX) {
errno = ENOMEM;
return NULL;
}
if (!(ret = malloc(n + 1)))
return NULL;
memcpy(ret, s, n);
ret[n] = '\0';
return ret;
}
#ifdef TEST
#include <assert.h>
int
main(void)
{
const char *s = "test";
void *p;
p = libsimple_memdup(s, 5);
assert(p && p != s);
assert(!strcmp(p, "test"));
memset(p, 0, 5);
assert(!strcmp(s, "test"));
free(p);
p = libsimple_memdup(s, 3);
assert(p && p != s);
assert(!strcmp(p, "tes"));
memset(p, 0, 5);
assert(!strcmp(s, "test"));
free(p);
p = libsimple_memdup(s, 0);
assert(p && p != s);
assert(!strcmp(p, ""));
memset(p, 0, 5);
assert(!strcmp(s, "test"));
free(p);
return 0;
}
#endif
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