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