dlls/msvcrt/tests/misc.c

   1 /*
   2  * Unit tests for miscellaneous msvcrt functions
   3  *
   4  * Copyright 2010 Andrew Nguyen
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include <errno.h>
  23 #include "msvcrt.h"
  24
  25 static int (__cdecl *prand_s)(unsigned int *);
  26 static int (__cdecl *pmemcpy_s)(void *, MSVCRT_size_t, void*, MSVCRT_size_t);
  27 static int (__cdecl *pI10_OUTPUT)(long double, int, int, void*);
  28 static int (__cdecl *pstrerror_s)(char *, MSVCRT_size_t, int);
  29 static int (__cdecl *p_get_errno)(int *);
  30
  31 static void init(void)
  32 {
  33     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
  34
  35     prand_s = (void *)GetProcAddress(hmod, "rand_s");
  36     pmemcpy_s = (void*)GetProcAddress(hmod, "memcpy_s");
  37     pI10_OUTPUT = (void*)GetProcAddress(hmod, "$I10_OUTPUT");
  38     pstrerror_s = (void *)GetProcAddress(hmod, "strerror_s");
  39     p_get_errno = (void *)GetProcAddress(hmod, "_get_errno");
  40 }
  41
  42 static void test_rand_s(void)
  43 {
  44     int ret;
  45     unsigned int rand;
  46
  47     if (!prand_s)
  48     {
  49         win_skip("rand_s is not available\n");
  50         return;
  51     }
  52
  53     errno = EBADF;
  54     ret = prand_s(NULL);
  55     ok(ret == EINVAL, "Expected rand_s to return EINVAL, got %d\n", ret);
  56     ok(errno == EINVAL, "Expected errno to return EINVAL, got %d\n", errno);
  57
  58     ret = prand_s(&rand);
  59     ok(ret == 0, "Expected rand_s to return 0, got %d\n", ret);
  60 }
  61
  62 static void test_memcpy_s(void)
  63 {
  64     static char data[] = "data\0to\0be\0copied";
  65     static char dest[32];
  66     int ret;
  67
  68     if(!pmemcpy_s)
  69     {
  70         win_skip("memcpy_s is not available\n");
  71         return;
  72     }
  73
  74     errno = 0xdeadbeef;
  75     ret = pmemcpy_s(NULL, 0, NULL, 0);
  76     ok(ret == 0, "ret = %x\n", ret);
  77     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  78
  79     errno = 0xdeadbeef;
  80     dest[0] = 'x';
  81     ret = pmemcpy_s(dest, 10, NULL, 0);
  82     ok(ret == 0, "ret = %x\n", ret);
  83     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  84     ok(dest[0] == 'x', "dest[0] != \'x\'\n");
  85
  86     errno = 0xdeadbeef;
  87     ret = pmemcpy_s(NULL, 10, data, 10);
  88     ok(ret == EINVAL, "ret = %x\n", ret);
  89     ok(errno == EINVAL, "errno = %x\n", errno);
  90
  91     errno = 0xdeadbeef;
  92     dest[7] = 'x';
  93     ret = pmemcpy_s(dest, 10, data, 5);
  94     ok(ret == 0, "ret = %x\n", ret);
  95     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  96     ok(memcmp(dest, data, 10), "All data copied\n");
  97     ok(!memcmp(dest, data, 5), "First five bytes are different\n");
  98
  99     errno = 0xdeadbeef;
 100     ret = pmemcpy_s(data, 10, data, 10);
 101     ok(ret == 0, "ret = %x\n", ret);
 102     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
 103     ok(!memcmp(dest, data, 5), "data was destroyed during overwriting\n");
 104
 105     errno = 0xdeadbeef;
 106     dest[0] = 'x';
 107     ret = pmemcpy_s(dest, 5, data, 10);
 108     ok(ret == ERANGE, "ret = %x\n", ret);
 109     ok(errno == ERANGE, "errno = %x\n", errno);
 110     ok(dest[0] == '\0', "dest[0] != \'\\0\'\n");
 111 }
 112
 113 typedef struct _I10_OUTPUT_data {
 114     short pos;
 115     char sign;
 116     BYTE len;
 117     char str[100];
 118 } I10_OUTPUT_data;
 119
 120 typedef struct _I10_OUTPUT_test {
 121     long double d;
 122     int size;
 123     int flags;
 124
 125     I10_OUTPUT_data out;
 126     int ret;
 127     const char *remain;
 128 } I10_OUTPUT_test;
 129
 130 static const I10_OUTPUT_test I10_OUTPUT_tests[] = {
 131     /* arg3 = 0 */
 132     { 0.0, 10, 0, {0, ' ', 1, "0"}, 1, "" },
 133     { 1.0, 10, 0, {1, ' ', 1, "1"}, 1, "000000009" },
 134     { -1.0, 10, 0, {1, '-', 1, "1"}, 1, "000000009" },
 135     { 1.23, 10, 0, {1, ' ', 3, "123"}, 1, "0000009" },
 136     { 1e13, 10, 0, {14, ' ', 1, "1"}, 1, "000000009" },
 137     { 1e30, 30, 0, {31, ' ', 21, "100000000000000001988"}, 1, "" },
 138     { 1e-13, 10, 0, {-12, ' ', 1, "1"}, 1, "000000000" },
 139     { 0.25, 10, 0, {0, ' ', 2, "25"}, 1, "00000000" },
 140     { 1.0000001, 10, 0, {1, ' ', 8, "10000001"}, 1, "00" },
 141     /* arg3 = 1 */
 142     { 0.0, 10, 1, {0, ' ', 1, "0"}, 1, "" },
 143     { 1.0, 10, 1, {1, ' ', 1, "1"}, 1, "0000000009" },
 144     { -1.0, 10, 1, {1, '-', 1, "1"}, 1, "0000000009" },
 145     { 1.23, 10, 1, {1, ' ', 3, "123"}, 1, "00000009" },
 146     { 1e13, 10, 1, {14, ' ', 1, "1"}, 1, "00000000000000000009" },
 147     { 1e30, 30, 1, {31, ' ', 21, "100000000000000001988"}, 1, "" },
 148     { 1e-13, 10, 1, {0, ' ', 1, "0"}, 1, "" },
 149     { 1e-7, 10, 1, {-6, ' ', 1, "1"}, 1, "09" },
 150     { 0.25, 10, 1, {0, ' ', 2, "25"}, 1, "00000000" },
 151     { 1.0000001, 10, 1, {1, ' ', 8, "10000001"}, 1, "000" },
 152     /* too small buffer */
 153     { 0.0, 0, 0, {0, ' ', 1, "0"}, 1, "" },
 154     { 0.0, 0, 1, {0, ' ', 1, "0"}, 1, "" },
 155     { 123.0, 2, 0, {3, ' ', 2, "12"}, 1, "" },
 156     { 123.0, 0, 0, {0, ' ', 1, "0"}, 1, "" },
 157     { 123.0, 2, 1, {3, ' ', 3, "123"}, 1, "09" },
 158     { 0.99, 1, 0, {1, ' ', 1, "1"}, 1, "" },
 159     { 1264567.0, 2, 0, {7, ' ', 2, "13"}, 1, "" },
 160     { 1264567.0, 2, 1, {7, ' ', 7, "1264567"}, 1, "00" },
 161     { 1234567891.0, 2, 1, {10, ' ', 10, "1234567891"}, 1, "09" }
 162 };
 163
 164 static void test_I10_OUTPUT(void)
 165 {
 166     I10_OUTPUT_data out;
 167     int i, j, ret;
 168
 169     if(!pI10_OUTPUT) {
 170         win_skip("I10_OUTPUT not available\n");
 171         return;
 172     }
 173
 174     for(i=0; i<sizeof(I10_OUTPUT_tests)/sizeof(I10_OUTPUT_test); i++) {
 175         memset(out.str, '#', sizeof(out.str));
 176
 177         ret = pI10_OUTPUT(I10_OUTPUT_tests[i].d, I10_OUTPUT_tests[i].size, I10_OUTPUT_tests[i].flags, &out);
 178         ok(ret == I10_OUTPUT_tests[i].ret, "%d: ret = %d\n", i, ret);
 179         ok(out.pos == I10_OUTPUT_tests[i].out.pos, "%d: out.pos = %hd\n", i, out.pos);
 180         ok(out.sign == I10_OUTPUT_tests[i].out.sign, "%d: out.size = %c\n", i, out.sign);
 181         ok(out.len == I10_OUTPUT_tests[i].out.len, "%d: out.len = %d\n", i, (int)out.len);
 182         ok(!strcmp(out.str, I10_OUTPUT_tests[i].out.str), "%d: out.str = %s\n", i, out.str);
 183
 184         j = strlen(I10_OUTPUT_tests[i].remain);
 185         if(j && I10_OUTPUT_tests[i].remain[j-1]=='9')
 186             todo_wine ok(!strncmp(out.str+out.len+1, I10_OUTPUT_tests[i].remain, j),
 187                     "%d: &out.str[%d] = %.25s...\n", i, out.len+1, out.str+out.len+1);
 188         else
 189             ok(!strncmp(out.str+out.len+1, I10_OUTPUT_tests[i].remain, j),
 190                     "%d: &out.str[%d] = %.25s...\n", i, out.len+1, out.str+out.len+1);
 191
 192
 193         for(j=out.len+strlen(I10_OUTPUT_tests[i].remain)+1; j<sizeof(out.str); j++)
 194             if(out.str[j] != '#')
 195                 ok(0, "%d: out.str[%d] = %c (expected \'#\')\n", i, j, out.str[j]);
 196     }
 197 }
 198
 199 static void test_strerror_s(void)
 200 {
 201     int ret;
 202     char buf[256];
 203
 204     if (!pstrerror_s)
 205     {
 206         win_skip("strerror_s is not available\n");
 207         return;
 208     }
 209
 210     errno = EBADF;
 211     ret = pstrerror_s(NULL, 0, 0);
 212     ok(ret == EINVAL, "Expected strerror_s to return EINVAL, got %d\n", ret);
 213     ok(errno == EINVAL, "Expected errno to be EINVAL, got %d\n", errno);
 214
 215     errno = EBADF;
 216     ret = pstrerror_s(NULL, sizeof(buf), 0);
 217     ok(ret == EINVAL, "Expected strerror_s to return EINVAL, got %d\n", ret);
 218     ok(errno == EINVAL, "Expected errno to be EINVAL, got %d\n", errno);
 219
 220     memset(buf, 'X', sizeof(buf));
 221     errno = EBADF;
 222     ret = pstrerror_s(buf, 0, 0);
 223     ok(ret == EINVAL, "Expected strerror_s to return EINVAL, got %d\n", ret);
 224     ok(errno == EINVAL, "Expected errno to be EINVAL, got %d\n", errno);
 225     ok(buf[0] == 'X', "Expected output buffer to be untouched\n");
 226
 227     memset(buf, 'X', sizeof(buf));
 228     ret = pstrerror_s(buf, 1, 0);
 229     ok(ret == 0, "Expected strerror_s to return 0, got %d\n", ret);
 230     ok(strlen(buf) == 0, "Expected output buffer to be null terminated\n");
 231
 232     memset(buf, 'X', sizeof(buf));
 233     ret = pstrerror_s(buf, 2, 0);
 234     ok(ret == 0, "Expected strerror_s to return 0, got %d\n", ret);
 235     ok(strlen(buf) == 1, "Expected output buffer to be truncated\n");
 236
 237     memset(buf, 'X', sizeof(buf));
 238     ret = pstrerror_s(buf, sizeof(buf), 0);
 239     ok(ret == 0, "Expected strerror_s to return 0, got %d\n", ret);
 240
 241     memset(buf, 'X', sizeof(buf));
 242     ret = pstrerror_s(buf, sizeof(buf), -1);
 243     ok(ret == 0, "Expected strerror_s to return 0, got %d\n", ret);
 244 }
 245
 246 static void test__get_errno(void)
 247 {
 248     int ret, out;
 249
 250     if (!p_get_errno)
 251     {
 252         win_skip("_get_errno is not available\n");
 253         return;
 254     }
 255
 256     errno = EBADF;
 257     ret = p_get_errno(NULL);
 258     ok(ret == EINVAL, "Expected _get_errno to return EINVAL, got %d\n", ret);
 259     ok(errno == EBADF, "Expected errno to be EBADF, got %d\n", errno);
 260
 261     errno = EBADF;
 262     out = 0xdeadbeef;
 263     ret = p_get_errno(&out);
 264     ok(ret == 0, "Expected _get_errno to return 0, got %d\n", ret);
 265     ok(out == EBADF, "Expected output variable to be EBADF, got %d\n", out);
 266 }
 267
 268 START_TEST(misc)
 269 {
 270     init();
 271
 272     test_rand_s();
 273     test_memcpy_s();
 274     test_I10_OUTPUT();
 275     test_strerror_s();
 276     test__get_errno();
 277 }