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/*------------------------------------------------------------------
* test_memrchr_s
* File 'memrchr_s.c'
* Lines executed:100.00% of 17
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_mem_lib.h"
#include <string.h>
#ifdef HAVE_MEMRCHR
#ifndef _ISOC11_SOURCE
extern void *memrchr(const void *, int, size_t);
#endif
#endif
#define LEN (128)
static uint8_t mem[LEN];
int test_memrchr_s(void);
int test_memrchr_s(void) {
errno_t rc;
int ch;
void *sub;
#ifdef HAVE_MEMRCHR
void *std_sub;
#endif
size_t len;
int errs = 0;
/*--------------------------------------------------*/
ch = 0;
#ifndef HAVE_CT_BOS_OVR
EXPECT_BOS("empty dest")
rc = memrchr_s(NULL, LEN, ch, &sub);
ERR(ESNULLP);
SUBNULL();
EXPECT_BOS("empty resultp")
rc = memrchr_s(mem, LEN, ch, NULL);
ERR(ESNULLP);
EXPECT_BOS("empty dest or dmax")
rc = memrchr_s(mem, 0, ch, &sub);
ERR(ESZEROL)
SUBNULL();
EXPECT_BOS("dest overflow")
rc = memrchr_s(mem, RSIZE_MAX_MEM + 1, ch, &sub);
ERR(ESLEMAX)
SUBNULL();
#ifdef HAVE___BUILTIN_OBJECT_SIZE
EXPECT_BOS("dest overflow")
rc = memrchr_s(mem, LEN + 1, ch, &sub);
ERR(EOVERFLOW)
SUBNULL();
#endif
EXPECT_BOS("ch overflow >255")
rc = memrchr_s(mem, LEN, 256, &sub);
ERR(ESLEMAX)
SUBNULL();
#endif
/*--------------------------------------------------*/
mem[LEN - 1] = '\0';
rc = memrchr_s(mem, LEN, 0, &sub);
ERR(EOK);
PTREQ(sub, &mem[LEN - 1]);
/*--------------------------------------------------*/
len = 20;
/* 012345678901234567890 */
memcpy(mem, "keep it all together", len);
rc = memrchr_s(mem, len + 1, 0, &sub);
ERR(EOK);
PTREQ(sub, &mem[len]);
/*--------------------------------------------------*/
/* at beginning */
rc = memrchr_s(mem, len, 'k', &sub);
ERR(EOK)
PTREQ(sub, &mem[0]);
/* in the middle - left */
rc = memrchr_s(mem, 5, 'e', &sub);
ERR(EOK)
PTREQ(sub, &mem[2]);
/* in the middle - right */
rc = memrchr_s(mem, len, 'o', &sub);
ERR(EOK)
PTREQ(sub, &mem[13]);
/*--------------------------------------------------*/
rc = memrchr_s(mem, len, 'h', &sub);
ERR(EOK)
PTREQ(sub, &mem[17]);
rc = memrchr_s(mem, len, 'r', &sub);
ERR(EOK)
PTREQ(sub, &mem[19]);
/*--------------------------------------------------*/
rc = memrchr_s(mem, 3, 'i', &sub);
ERR(ESNOTFND)
SUBNULL();
rc = memrchr_s(mem, len, 'i', &sub);
ERR(EOK)
/*--------------------------------------------------*/
rc = memrchr_s(mem, len, 1, &sub);
ERR(ESNOTFND);
SUBNULL();
rc = memrchr_s(mem, len, 'e', &sub);
ERR(EOK)
PTREQ(sub, &mem[18]);
#ifdef HAVE_MEMRCHR
/* compare to legacy */
std_sub = (void *)memrchr(mem, 'e', len);
PTREQ(sub, std_sub);
#endif
/*--------------------------------------------------*/
return (errs);
}
#ifndef __KERNEL__
/* simple hack to get this to work for both userspace and Linux kernel,
until a better solution can be created. */
int main(void) { return (test_memrchr_s()); }
#endif
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