dlls/msvcrt/tests/scanf.c

   1 /*
   2  * Unit test suite for *scanf functions.
   3  *
   4  * Copyright 2002 Uwe Bonnes
   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 <stdio.h>
  22
  23 #include "wine/test.h"
  24
  25 static void test_sscanf( void )
  26 {
  27     char buffer[100], buffer1[100];
  28     char format[20];
  29     int result, ret;
  30     LONGLONG result64;
  31     char c;
  32     void *ptr;
  33     float res1= -82.6267f, res2= 27.76f, res11, res12;
  34     double double_res;
  35     static const char pname[]=" St. Petersburg, Florida\n";
  36     int hour=21,min=59,sec=20;
  37     int  number,number_so_far;
  38
  39
  40     /* check EOF */
  41     strcpy(buffer,"");
  42     ret = sscanf(buffer, "%d", &result);
  43     ok( ret == EOF,"sscanf returns %x instead of %x\n", ret, EOF );
  44
  45     /* check %p */
  46     ok( sscanf("000000000046F170", "%p", &ptr) == 1, "sscanf failed\n"  );
  47     ok( ptr == (void *)0x46F170,"sscanf reads %p instead of %x\n", ptr, 0x46F170 );
  48
  49     ok( sscanf("0046F171", "%p", &ptr) == 1, "sscanf failed\n"  );
  50     ok( ptr == (void *)0x46F171,"sscanf reads %p instead of %x\n", ptr, 0x46F171 );
  51
  52     ok( sscanf("46F172", "%p", &ptr) == 1, "sscanf failed\n"  );
  53     ok( ptr == (void *)0x46F172,"sscanf reads %p instead of %x\n", ptr, 0x46F172 );
  54
  55     ok( sscanf("0x46F173", "%p", &ptr) == 1, "sscanf failed\n"  );
  56     ok( ptr == NULL,"sscanf reads %p instead of %x\n", ptr, 0 );
  57
  58     ok( sscanf("-46F174", "%p", &ptr) == 1, "sscanf failed\n"  );
  59     ok( ptr == (void *)(ULONG_PTR)-0x46f174,"sscanf reads %p instead of %p\n",
  60         ptr, (void *)(ULONG_PTR)-0x46f174 );
  61
  62     ok( sscanf("+46F175", "%p", &ptr) == 1, "sscanf failed\n"  );
  63     ok( ptr == (void *)0x46F175,"sscanf reads %p instead of %x\n", ptr, 0x46F175 );
  64
  65     /* check %p with no hex digits */
  66     ok( sscanf("1233", "%p", &ptr) == 1, "sscanf failed\n"  );
  67     ok( ptr == (void *)0x1233,"sscanf reads %p instead of %x\n", ptr, 0x1233 );
  68
  69     ok( sscanf("1234", "%P", &ptr) == 1, "sscanf failed\n"  );
  70     ok( ptr == (void *)0x1234,"sscanf reads %p instead of %x\n", ptr, 0x1234 );
  71
  72     /* check %x */
  73     strcpy(buffer,"0x519");
  74     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n"  );
  75     ok( result == 0x519,"sscanf reads %x instead of %x\n", result, 0x519 );
  76
  77     strcpy(buffer,"0x51a");
  78     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
  79     ok( result == 0x51a ,"sscanf reads %x instead of %x\n", result, 0x51a );
  80
  81     strcpy(buffer,"0x51g");
  82     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
  83     ok( result == 0x51, "sscanf reads %x instead of %x\n", result, 0x51 );
  84
  85     result = 0;
  86     ret = sscanf("-1", "%x", &result);
  87     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
  88     ok(result == -1, "Read %d, expected -1\n", result);
  89
  90     /* check % followed by any char */
  91     strcpy(buffer,"\"%12@");
  92     strcpy(format,"%\"%%%d%@");  /* work around gcc format check */
  93     ok( sscanf(buffer, format, &result) == 1, "sscanf failed\n" );
  94     ok( result == 12, "sscanf reads %x instead of %x\n", result, 12 );
  95
  96     /* Check float */
  97     ret = sprintf(buffer,"%f %f",res1, res2);
  98     ok( ret == 20, "expected 20, got %u\n", ret);
  99     ret = sscanf(buffer,"%f%f",&res11, &res12);
 100     ok( ret == 2, "expected 2, got %u\n", ret);
 101     ok( (res11 == res1) && (res12 == res2), "Error reading floats\n");
 102
 103     /* Check double */
 104     ret = sprintf(buffer, "%lf", 32.715);
 105     ok(ret == 9, "expected 9, got %u\n", ret);
 106     ret = sscanf(buffer, "%lf", &double_res);
 107     ok(ret == 1, "expected 1, got %u\n", ret);
 108     ok(double_res == 32.715, "Got %lf, expected %lf\n", double_res, 32.715);
 109     ret = sscanf(buffer, "%Lf", &double_res);
 110     ok(ret == 1, "expected 1, got %u\n", ret);
 111     ok(double_res == 32.715, "Got %lf, expected %lf\n", double_res, 32.715);
 112
 113     strcpy(buffer, "1.1e-30");
 114     ret = sscanf(buffer, "%lf", &double_res);
 115     ok(ret == 1, "expected 1, got %u\n", ret);
 116     ok(double_res >= 1.1e-30-1e-45 && double_res <= 1.1e-30+1e-45,
 117             "Got %.18le, expected %.18le\n", double_res, 1.1e-30);
 118
 119     /* check strings */
 120     ret = sprintf(buffer," %s", pname);
 121     ok( ret == 26, "expected 26, got %u\n", ret);
 122     ret = sscanf(buffer,"%*c%[^\n]",buffer1);
 123     ok( ret == 1, "Error with format \"%s\"\n","%*c%[^\n]");
 124     ok( strncmp(pname,buffer1,strlen(buffer1)) == 0, "Error with \"%s\" \"%s\"\n",pname, buffer1);
 125
 126     ret = sscanf("abcefgdh","%*[a-cg-e]%c",&buffer[0]);
 127     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cg-e]%c");
 128     ok( buffer[0] == 'd', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
 129
 130     ret = sscanf("abcefgdh","%*[a-cd-dg-e]%c",&buffer[0]);
 131     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cd-dg-e]%c");
 132     ok( buffer[0] == 'h', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
 133
 134     buffer1[0] = 'b';
 135     ret = sscanf("a","%s%s", buffer, buffer1);
 136     ok( ret == 1, "expected 1, got %u\n", ret);
 137     ok( buffer[0] == 'a', "buffer[0] = '%c'\n", buffer[0]);
 138     ok( buffer[1] == '\0', "buffer[1] = '%c'\n", buffer[1]);
 139     ok( buffer1[0] == 'b', "buffer1[0] = '%c'\n", buffer1[0]);
 140
 141     /* check digits */
 142     ret = sprintf(buffer,"%d:%d:%d",hour,min,sec);
 143     ok( ret == 8, "expected 8, got %u\n", ret);
 144     ret = sscanf(buffer,"%d%n",&number,&number_so_far);
 145     ok(ret == 1 , "problem with format arg \"%%d%%n\"\n");
 146     ok(number == hour,"Read wrong arg %d instead of %d\n",number, hour);
 147     ok(number_so_far == 2,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
 148
 149     ret = sscanf(buffer+2,"%*c%n",&number_so_far);
 150     ok(ret == 0 , "problem with format arg \"%%*c%%n\"\n");
 151     ok(number_so_far == 1,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
 152
 153     result = 0xdeadbeef;
 154     strcpy(buffer,"12345678");
 155     ret = sscanf(buffer, "%hd", &result);
 156     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 157     ok(result == 0xdead614e, "Wrong number read (%x)\n", result);
 158
 159     result = 0xdeadbeef;
 160     ret = sscanf(buffer, "%hhd", &result);
 161     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 162     ok(result == 0xbc614e, "Wrong number read (%x)\n", result);
 163
 164     strcpy(buffer,"12345678901234");
 165     ret = sscanf(buffer, "%lld", &result64);
 166     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 167     ret = sprintf(buffer1, "%lld", result64);
 168     ok(ret==14 || broken(ret==10), "sprintf retuned %d\n", ret);
 169     if(ret == 14)
 170         ok(!strcmp(buffer, buffer1), "got %s, expected %s\n", buffer1, buffer);
 171
 172     /* Check %i according to bug 1878 */
 173     strcpy(buffer,"123");
 174     ret = sscanf(buffer, "%i", &result);
 175     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 176     ok(result == 123, "Wrong number read\n");
 177     result = 0;
 178     ret = sscanf("-1", "%i", &result);
 179     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 180     ok(result == -1, "Read %d, expected -1\n", result);
 181     ret = sscanf(buffer, "%d", &result);
 182     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 183     ok(result == 123, "Wrong number read\n");
 184     result = 0;
 185     ret = sscanf("-1", "%d", &result);
 186     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 187     ok(result == -1, "Read %d, expected -1\n", result);
 188
 189     /* Check %i for octal and hexadecimal input */
 190     result = 0;
 191     strcpy(buffer,"017");
 192     ret = sscanf(buffer, "%i", &result);
 193     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 194     ok(result == 15, "Wrong number read\n");
 195     result = 0;
 196     strcpy(buffer,"0x17");
 197     ret = sscanf(buffer, "%i", &result);
 198     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 199     ok(result == 23, "Wrong number read\n");
 200
 201     /* %o */
 202     result = 0;
 203     ret = sscanf("-1", "%o", &result);
 204     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 205     ok(result == -1, "Read %d, expected -1\n", result);
 206
 207     /* %u */
 208     result = 0;
 209     ret = sscanf("-1", "%u", &result);
 210     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 211     ok(result == -1, "Read %d, expected -1\n", result);
 212
 213     /* Check %c */
 214     strcpy(buffer,"a");
 215     c = 0x55;
 216     ret = sscanf(buffer, "%c", &c);
 217     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 218     ok(c == 'a', "Field incorrect: '%c'\n", c);
 219
 220     strcpy(buffer," a");
 221     c = 0x55;
 222     ret = sscanf(buffer, "%c", &c);
 223     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 224     ok(c == ' ', "Field incorrect: '%c'\n", c);
 225
 226     strcpy(buffer,"18:59");
 227     c = 0x55;
 228     ret = sscanf(buffer, "%d:%d%c", &hour, &min, &c);
 229     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
 230     ok(hour == 18, "Field 1 incorrect: %d\n", hour);
 231     ok(min == 59, "Field 2 incorrect: %d\n", min);
 232     ok(c == 0x55, "Field 3 incorrect: 0x%02x\n", c);
 233
 234     /* Check %n (also whitespace in format strings and %s) */
 235     buffer[0]=0; buffer1[0]=0;
 236     ret = sscanf("abc   def", "%s %n%s", buffer, &number_so_far, buffer1);
 237     ok(strcmp(buffer, "abc")==0, "First %%s read incorrectly: %s\n", buffer);
 238     ok(strcmp(buffer1,"def")==0, "Second %%s read incorrectly: %s\n", buffer1);
 239     ok(number_so_far==6, "%%n yielded wrong result: %d\n", number_so_far);
 240     ok(ret == 2, "%%n shouldn't count as a conversion: %d\n", ret);
 241
 242     /* Check where %n matches to EOF in buffer */
 243     strcpy(buffer, "3:45");
 244     ret = sscanf(buffer, "%d:%d%n", &hour, &min, &number_so_far);
 245     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
 246     ok(number_so_far == 4, "%%n yielded wrong result: %d\n", number_so_far);
 247 }
 248
 249 static void test_sscanf_s(void)
 250 {
 251     int (__cdecl *psscanf_s)(const char*,const char*,...);
 252     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
 253     int i, ret;
 254     char buf[100];
 255
 256     psscanf_s = (void*)GetProcAddress(hmod, "sscanf_s");
 257     if(!psscanf_s) {
 258         win_skip("sscanf_s not available\n");
 259         return;
 260     }
 261
 262     ret = psscanf_s("123", "%d", &i);
 263     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 264     ok(i == 123, "i = %d\n", i);
 265
 266     ret = psscanf_s("123", "%s", buf, 100);
 267     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 268     ok(!strcmp("123", buf), "buf = %s\n", buf);
 269
 270     ret = psscanf_s("123", "%s", buf, 3);
 271     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
 272     ok(buf[0]=='\0', "buf = %s\n", buf);
 273
 274     buf[0] = 'a';
 275     ret = psscanf_s("123", "%3c", buf, 2);
 276     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
 277     ok(buf[0]=='\0', "buf = %s\n", buf);
 278
 279     i = 1;
 280     ret = psscanf_s("123 123", "%s %d", buf, 2, &i);
 281     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
 282     ok(i==1, "i = %d\n", i);
 283
 284     i = 1;
 285     ret = psscanf_s("123 123", "%d %s", &i, buf, 2);
 286     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 287     ok(i==123, "i = %d\n", i);
 288 }
 289
 290 static void test_swscanf( void )
 291 {
 292     wchar_t buffer[100];
 293     int result, ret;
 294     static const WCHAR formatd[] = {'%','d',0};
 295
 296     /* check WEOF */
 297     /* WEOF is an unsigned short -1 but swscanf returns int
 298        so it should be sign-extended */
 299     buffer[0] = 0;
 300     ret = swscanf(buffer, formatd, &result);
 301     /* msvcrt returns 0 but should return -1 (later versions do) */
 302     ok( ret == (short)WEOF || broken(ret == 0),
 303         "swscanf returns %x instead of %x\n", ret, WEOF );
 304 }
 305
 306 START_TEST(scanf)
 307 {
 308     test_sscanf();
 309     test_sscanf_s();
 310     test_swscanf();
 311 }