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Commit	Line	Data
	1	#include <bsdtests.h>
	2	#include <mach/mach_types.h>
	3	#include <sys/mman.h>
	4	#include <string.h>
	5
	6	static const char* qbf = "The quick brown fox jumps over the lazy dog";
	7	static const char* lynx = "Lynx c.q. vos prikt bh: dag zwemjuf!";
	8
	9	int
	10	main(void)
	11	{
	12	test_start("strlcat");
	13
	14	void ptr = mmap(NULL, PAGE_SIZE2, PROT_READ\|PROT_WRITE, MAP_ANON\|MAP_PRIVATE, -1, 0);
	15	test_ptr_not("mmap", ptr, MAP_FAILED);
	16
	17	test_errno("mprotect", mprotect(ptr+PAGE_SIZE, PAGE_SIZE, PROT_READ), 0);
	18
	19	off_t offset = strlen(qbf)+strlen(lynx)+1;
	20	char *dst = (ptr+PAGE_SIZE)-offset;
	21	strcpy(dst, qbf);
	22
	23	size_t res = strlcat(dst, lynx, offset);
	24	test_long("strlcat", res, offset-1);
	25	test_long("memcmp", memcmp(dst, qbf, strlen(qbf)), 0);
	26	test_long("memcmp", memcmp(dst+strlen(qbf), lynx, strlen(lynx)), 0);
	27	test_long("null-term", dst[offset], 0);
	28
	29	memset(ptr, '\0', PAGE_SIZE);
	30
	31	offset = strlen(qbf)+(strlen(lynx)/2)+1;
	32	dst = (ptr+PAGE_SIZE)-offset;
	33	strcpy(dst, qbf);
	34
	35	res = strlcat(dst, lynx, offset);
	36	test_long("strlcat", res, strlen(qbf)+strlen(lynx));
	37	test_long("memcmp", memcmp(dst, qbf, strlen(qbf)), 0);
	38	test_long("memcmp", memcmp(dst+strlen(qbf), lynx, offset-strlen(qbf)-1), 0);
	39	test_long("overrun", (char)(ptr+PAGE_SIZE), 0);
	40	test_long("null-term", dst[offset], 0);
	41
	42	memset(ptr, '\0', PAGE_SIZE);
	43
	44	offset = strlen(qbf)-4;
	45	dst = (ptr+PAGE_SIZE)-offset;
	46	strncpy(dst, qbf, offset);
	47
	48	res = strlcat(dst, lynx, offset);
	49	test_long("strlcat", res, offset+strlen(lynx));
	50	test_long("memcmp", memcmp(dst, qbf, offset), 0);
	51	test_long("overrun", (char)(ptr+PAGE_SIZE), 0);
	52	test_long("null-term", dst[offset], 0);
	53
	54	test_stop();
	55	return EXIT_SUCCESS;
	56	}