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