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 
test_sscanf(void)25 static void test_sscanf( void )
26 {
27     /* use function pointers to bypass gcc builtin */
28     int (WINAPIV *p_sprintf)(char *buf, const char *fmt, ...);
29     int (WINAPIV *p_sscanf)(const char *buf, const char *fmt, ...);
30     char buffer[100], buffer1[100];
31     char format[20];
32     int result, ret;
33     LONGLONG result64;
34     char c;
35     void *ptr;
36     float res1= -82.6267f, res2= 27.76f, res11, res12;
37     double double_res;
38     static const char pname[]=" St. Petersburg, Florida\n";
39     int hour=21,min=59,sec=20;
40     int  number,number_so_far;
41     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
42 
43     p_sprintf = (void *)GetProcAddress( hmod, "sprintf" );
44     p_sscanf = (void *)GetProcAddress( hmod, "sscanf" );
45 
46     /* check EOF */
47     strcpy(buffer,"");
48     ret = p_sscanf(buffer, "%d", &result);
49     ok( ret == EOF,"sscanf returns %x instead of %x\n", ret, EOF );
50 
51     /* check %p */
52     ok( p_sscanf("000000000046F170", "%p", &ptr) == 1, "sscanf failed\n"  );
53     ok( ptr == (void *)0x46F170,"sscanf reads %p instead of %x\n", ptr, 0x46F170 );
54 
55     ok( p_sscanf("0046F171", "%p", &ptr) == 1, "sscanf failed\n"  );
56     ok( ptr == (void *)0x46F171,"sscanf reads %p instead of %x\n", ptr, 0x46F171 );
57 
58     ok( p_sscanf("46F172", "%p", &ptr) == 1, "sscanf failed\n"  );
59     ok( ptr == (void *)0x46F172,"sscanf reads %p instead of %x\n", ptr, 0x46F172 );
60 
61     ok( p_sscanf("0x46F173", "%p", &ptr) == 1, "sscanf failed\n"  );
62     ok( ptr == NULL,"sscanf reads %p instead of %x\n", ptr, 0 );
63 
64     ok( p_sscanf("-46F174", "%p", &ptr) == 1, "sscanf failed\n"  );
65     ok( ptr == (void *)(ULONG_PTR)-0x46f174,"sscanf reads %p instead of %p\n",
66         ptr, (void *)(ULONG_PTR)-0x46f174 );
67 
68     ok( p_sscanf("+46F175", "%p", &ptr) == 1, "sscanf failed\n"  );
69     ok( ptr == (void *)0x46F175,"sscanf reads %p instead of %x\n", ptr, 0x46F175 );
70 
71     /* check %p with no hex digits */
72     ok( p_sscanf("1233", "%p", &ptr) == 1, "sscanf failed\n"  );
73     ok( ptr == (void *)0x1233,"sscanf reads %p instead of %x\n", ptr, 0x1233 );
74 
75     ok( p_sscanf("1234", "%P", &ptr) == 1, "sscanf failed\n"  );
76     ok( ptr == (void *)0x1234,"sscanf reads %p instead of %x\n", ptr, 0x1234 );
77 
78     /* check %x */
79     strcpy(buffer,"0x519");
80     ok( p_sscanf(buffer, "%x", &result) == 1, "sscanf failed\n"  );
81     ok( result == 0x519,"sscanf reads %x instead of %x\n", result, 0x519 );
82 
83     strcpy(buffer,"0x51a");
84     ok( p_sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
85     ok( result == 0x51a ,"sscanf reads %x instead of %x\n", result, 0x51a );
86 
87     strcpy(buffer,"0x51g");
88     ok( p_sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
89     ok( result == 0x51, "sscanf reads %x instead of %x\n", result, 0x51 );
90 
91     result = 0;
92     ret = p_sscanf("-1", "%x", &result);
93     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
94     ok(result == -1, "Read %d, expected -1\n", result);
95 
96     /* check % followed by any char */
97     strcpy(buffer,"\"%12@");
98     strcpy(format,"%\"%%%d%@");  /* work around gcc format check */
99     ok( p_sscanf(buffer, format, &result) == 1, "sscanf failed\n" );
100     ok( result == 12, "sscanf reads %x instead of %x\n", result, 12 );
101 
102     /* Check float */
103     ret = p_sprintf(buffer,"%f %f",res1, res2);
104     ok( ret == 20, "expected 20, got %u\n", ret);
105     ret = p_sscanf(buffer,"%f%f",&res11, &res12);
106     ok( ret == 2, "expected 2, got %u\n", ret);
107     ok( (res11 == res1) && (res12 == res2), "Error reading floats\n");
108 
109     /* Check double */
110     ret = p_sprintf(buffer, "%lf", 32.715);
111     ok(ret == 9, "expected 9, got %u\n", ret);
112     ret = p_sscanf(buffer, "%lf", &double_res);
113     ok(ret == 1, "expected 1, got %u\n", ret);
114     ok(double_res == 32.715, "Got %lf, expected %lf\n", double_res, 32.715);
115     ret = p_sscanf(buffer, "%Lf", &double_res);
116     ok(ret == 1, "expected 1, got %u\n", ret);
117     ok(double_res == 32.715, "Got %lf, expected %lf\n", double_res, 32.715);
118 
119     strcpy(buffer, "1.1e-30");
120     ret = p_sscanf(buffer, "%lf", &double_res);
121     ok(ret == 1, "expected 1, got %u\n", ret);
122     ok(double_res >= 1.1e-30-1e-45 && double_res <= 1.1e-30+1e-45,
123             "Got %.18le, expected %.18le\n", double_res, 1.1e-30);
124 
125     /* check strings */
126     ret = p_sprintf(buffer," %s", pname);
127     ok( ret == 26, "expected 26, got %u\n", ret);
128     ret = p_sscanf(buffer,"%*c%[^\n]",buffer1);
129     ok( ret == 1, "Error with format \"%s\"\n","%*c%[^\n]");
130     ok( strncmp(pname,buffer1,strlen(buffer1)) == 0, "Error with \"%s\" \"%s\"\n",pname, buffer1);
131 
132     ret = p_sscanf("abcefgdh","%*[a-cg-e]%c",&buffer[0]);
133     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cg-e]%c");
134     ok( buffer[0] == 'd', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
135 
136     ret = p_sscanf("abcefgdh","%*[a-cd-dg-e]%c",&buffer[0]);
137     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cd-dg-e]%c");
138     ok( buffer[0] == 'h', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
139 
140     buffer1[0] = 'b';
141     ret = p_sscanf("a","%s%s", buffer, buffer1);
142     ok( ret == 1, "expected 1, got %u\n", ret);
143     ok( buffer[0] == 'a', "buffer[0] = '%c'\n", buffer[0]);
144     ok( buffer[1] == '\0', "buffer[1] = '%c'\n", buffer[1]);
145     ok( buffer1[0] == 'b', "buffer1[0] = '%c'\n", buffer1[0]);
146 
147     /* check digits */
148     ret = p_sprintf(buffer,"%d:%d:%d",hour,min,sec);
149     ok( ret == 8, "expected 8, got %u\n", ret);
150     ret = p_sscanf(buffer,"%d%n",&number,&number_so_far);
151     ok(ret == 1 , "problem with format arg \"%%d%%n\"\n");
152     ok(number == hour,"Read wrong arg %d instead of %d\n",number, hour);
153     ok(number_so_far == 2,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
154 
155     ret = p_sscanf(buffer+2,"%*c%n",&number_so_far);
156     ok(ret == 0 , "problem with format arg \"%%*c%%n\"\n");
157     ok(number_so_far == 1,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
158 
159     result = 0xdeadbeef;
160     strcpy(buffer,"12345678");
161     ret = p_sscanf(buffer, "%hd", &result);
162     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
163     ok(result == 0xdead614e, "Wrong number read (%x)\n", result);
164 
165     result = 0xdeadbeef;
166     ret = p_sscanf(buffer, "%hhd", &result);
167     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
168     ok(result == 0xbc614e, "Wrong number read (%x)\n", result);
169 
170     strcpy(buffer,"12345678901234");
171     ret = p_sscanf(buffer, "%lld", &result64);
172     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
173     ret = p_sprintf(buffer1, "%lld", result64);
174     ok(ret==14 || broken(ret==10), "sprintf returned %d\n", ret);
175     if(ret == 14)
176         ok(!strcmp(buffer, buffer1), "got %s, expected %s\n", buffer1, buffer);
177 
178     /* Check %i according to bug 1878 */
179     strcpy(buffer,"123");
180     ret = p_sscanf(buffer, "%i", &result);
181     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
182     ok(result == 123, "Wrong number read\n");
183     result = 0;
184     ret = p_sscanf("-1", "%i", &result);
185     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
186     ok(result == -1, "Read %d, expected -1\n", result);
187     ret = p_sscanf(buffer, "%d", &result);
188     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
189     ok(result == 123, "Wrong number read\n");
190     result = 0;
191     ret = p_sscanf("-1", "%d", &result);
192     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
193     ok(result == -1, "Read %d, expected -1\n", result);
194 
195     /* Check %i for octal and hexadecimal input */
196     result = 0;
197     strcpy(buffer,"017");
198     ret = p_sscanf(buffer, "%i", &result);
199     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
200     ok(result == 15, "Wrong number read\n");
201     result = 0;
202     strcpy(buffer,"0x17");
203     ret = p_sscanf(buffer, "%i", &result);
204     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
205     ok(result == 23, "Wrong number read\n");
206 
207     /* %o */
208     result = 0;
209     ret = p_sscanf("-1", "%o", &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     /* %u */
214     result = 0;
215     ret = p_sscanf("-1", "%u", &result);
216     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
217     ok(result == -1, "Read %d, expected -1\n", result);
218 
219     /* Check %c */
220     strcpy(buffer,"a");
221     c = 0x55;
222     ret = p_sscanf(buffer, "%c", &c);
223     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
224     ok(c == 'a', "Field incorrect: '%c'\n", c);
225 
226     strcpy(buffer," a");
227     c = 0x55;
228     ret = p_sscanf(buffer, "%c", &c);
229     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
230     ok(c == ' ', "Field incorrect: '%c'\n", c);
231 
232     strcpy(buffer,"18:59");
233     c = 0x55;
234     ret = p_sscanf(buffer, "%d:%d%c", &hour, &min, &c);
235     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
236     ok(hour == 18, "Field 1 incorrect: %d\n", hour);
237     ok(min == 59, "Field 2 incorrect: %d\n", min);
238     ok(c == 0x55, "Field 3 incorrect: 0x%02x\n", c);
239 
240     /* Check %n (also whitespace in format strings and %s) */
241     buffer[0]=0; buffer1[0]=0;
242     ret = p_sscanf("abc   def", "%s %n%s", buffer, &number_so_far, buffer1);
243     ok(strcmp(buffer, "abc")==0, "First %%s read incorrectly: %s\n", buffer);
244     ok(strcmp(buffer1,"def")==0, "Second %%s read incorrectly: %s\n", buffer1);
245     ok(number_so_far==6, "%%n yielded wrong result: %d\n", number_so_far);
246     ok(ret == 2, "%%n shouldn't count as a conversion: %d\n", ret);
247 
248     /* Check where %n matches to EOF in buffer */
249     strcpy(buffer, "3:45");
250     ret = p_sscanf(buffer, "%d:%d%n", &hour, &min, &number_so_far);
251     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
252     ok(number_so_far == 4, "%%n yielded wrong result: %d\n", number_so_far);
253 
254     buffer[0] = 0;
255     buffer1[0] = 0;
256     ret = p_sscanf("test=value\xda", "%[^=] = %[^;]", buffer, buffer1);
257     ok(ret == 2, "got %d\n", ret);
258     ok(!strcmp(buffer, "test"), "buf %s\n", buffer);
259     ok(!strcmp(buffer1, "value\xda"), "buf %s\n", buffer1);
260 
261     ret = p_sscanf("\x81\x82test", "\x81%\x82%s", buffer);
262     ok(ret == 1, "got %d\n", ret);
263     ok(!strcmp(buffer, "test"), "buf = %s\n", buffer);
264 }
265 
test_sscanf_s(void)266 static void test_sscanf_s(void)
267 {
268     int (WINAPIV *psscanf_s)(const char*,const char*,...);
269     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
270     int i, ret;
271     char buf[100];
272 
273     psscanf_s = (void*)GetProcAddress(hmod, "sscanf_s");
274     if(!psscanf_s) {
275         win_skip("sscanf_s not available\n");
276         return;
277     }
278 
279     ret = psscanf_s("123", "%d", &i);
280     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
281     ok(i == 123, "i = %d\n", i);
282 
283     ret = psscanf_s("123", "%s", buf, 100);
284     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
285     ok(!strcmp("123", buf), "buf = %s\n", buf);
286 
287     ret = psscanf_s("123", "%s", buf, 3);
288     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
289     ok(buf[0]=='\0', "buf = %s\n", buf);
290 
291     memset(buf, 'a', sizeof(buf));
292     ret = psscanf_s("123", "%3c", buf, 2);
293     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
294     ok(buf[0]=='\0', "buf = %s\n", buf);
295     ok(buf[1]=='2', "buf[1] = %d\n", buf[1]);
296     ok(buf[2]=='a', "buf[2] = %d\n", buf[2]);
297 
298     buf[3] = 'a';
299     buf[4] = 0;
300     ret = psscanf_s("123", "%3c", buf, 3);
301     ok(!strcmp("123a", buf), "buf = %s\n", buf);
302 
303     i = 1;
304     ret = psscanf_s("123 123", "%s %d", buf, 2, &i);
305     ok(ret == 0, "Wrong number of arguments read: %d\n", ret);
306     ok(i==1, "i = %d\n", i);
307 
308     i = 1;
309     ret = psscanf_s("123 123", "%d %s", &i, buf, 2);
310     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
311     ok(i==123, "i = %d\n", i);
312 }
313 
test_swscanf(void)314 static void test_swscanf( void )
315 {
316     wchar_t buffer[100];
317     int result, ret;
318     static const WCHAR formatd[] = {'%','d',0};
319     const WCHAR format2[] = {'a',0x1234,'%',0x1234,'%','c',0};
320     WCHAR c;
321 
322     /* check WEOF */
323     /* WEOF is an unsigned short -1 but swscanf returns int
324        so it should be sign-extended */
325     buffer[0] = 0;
326     ret = swscanf(buffer, formatd, &result);
327     /* msvcrt returns 0 but should return -1 (later versions do) */
328     ok( ret == (short)WEOF || broken(ret == 0),
329         "swscanf returns %x instead of %x\n", ret, WEOF );
330 
331     buffer[0] = 'a';
332     buffer[1] = 0x1234;
333     buffer[2] = 0x1234;
334     buffer[3] = 'b';
335     ret = swscanf(buffer, format2, &c);
336     ok(ret == 1, "swscanf returned %d\n", ret);
337     ok(c == 'b', "c = %x\n", c);
338 }
339 
test_swscanf_s(void)340 static void test_swscanf_s(void)
341 {
342     static const wchar_t fmt1[] = {'%','c',0};
343     static const wchar_t fmt2[] = {'%','[','a','-','z',']',0};
344 
345     int (WINAPIV *pswscanf_s)(const wchar_t*,const wchar_t*,...);
346     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
347     wchar_t buf[2], out[2];
348     int ret;
349 
350     pswscanf_s = (void*)GetProcAddress(hmod, "swscanf_s");
351     if(!pswscanf_s) {
352         win_skip("swscanf_s not available\n");
353         return;
354     }
355 
356     buf[0] = 'a';
357     buf[1] = '1';
358     out[1] = 'b';
359     ret = pswscanf_s(buf, fmt1, out, 1);
360     ok(ret == 1, "swscanf_s returned %d\n", ret);
361     ok(out[0] == 'a', "out[0] = %x\n", out[0]);
362     ok(out[1] == 'b', "out[1] = %x\n", out[1]);
363 
364     ret = pswscanf_s(buf, fmt2, out, 1);
365     ok(!ret, "swscanf_s returned %d\n", ret);
366 
367     ret = pswscanf_s(buf, fmt2, out, 2);
368     ok(ret == 1, "swscanf_s returned %d\n", ret);
369     ok(out[0] == 'a', "out[0] = %x\n", out[0]);
370     ok(!out[1], "out[1] = %x\n", out[1]);
371 }
372 
START_TEST(scanf)373 START_TEST(scanf)
374 {
375     test_sscanf();
376     test_sscanf_s();
377     test_swscanf();
378     test_swscanf_s();
379 }
380