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CPP: Add a few more tests of '%c'.

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This commit is contained in:
Geoffrey White
2019-02-27 18:47:13 +00:00
parent eb08dcfbd0
commit 9f9712047c
5 changed files with 39 additions and 0 deletions
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1
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Linux_unsigned_chars/common.h
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@@ -12,6 +12,7 @@ typedef struct _IO_FILE FILE;
extern int printf(const char *fmt, ...);
extern int vprintf(const char *fmt, va_list ap);
extern int vfprintf(FILE *stream, const char *format, va_list ap);
extern int wprintf(const wchar_t *format, ...);
#include "printf1.h"
#include "real_world.h"

1
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Linux_unsigned_chars/formattingFunction.expected
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@@ -1,4 +1,5 @@
| common.h:12:12:12:17 | printf | char | wchar_t | wchar_t |
| common.h:15:12:15:18 | wprintf | wchar_t | char | wchar_t |
| format.h:4:13:4:17 | error | char | wchar_t | wchar_t |
| real_world.h:8:12:8:18 | fprintf | char | wchar_t | wchar_t |
| real_world.h:33:6:33:12 | msg_out | char | wchar_t | wchar_t |

18
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Linux_unsigned_chars/printf1.h
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@@ -101,3 +101,21 @@ void fun1(unsigned char* a, unsigned char* b) {
printf("%td\n", pdt); // GOOD
printf("%td\n", a-b); // GOOD
}
typedef unsigned int wint_t;
void test_chars(char c, wchar_t wc, wint_t wt)
{
printf("%c", c); // GOOD
printf("%c", wc); // BAD [NOT DETECTED]
printf("%c", wt); // BAD [NOT DETECTED]
printf("%C", c); // BAD [NOT DETECTED]
printf("%C", wc); // GOOD (converts to wint_t)
printf("%C", wt); // GOOD
wprintf(L"%c", c); // GOOD
wprintf(L"%c", wc); // BAD [NOT DETECTED]
wprintf(L"%c", wt); // BAD [NOT DETECTED]
wprintf(L"%C", c); // BAD [NOT DETECTED]
wprintf(L"%C", wc); // GOOD (converts to wint_t)
wprintf(L"%C", wt); // GOOD
}

1
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Microsoft/common.h
View File

@@ -12,6 +12,7 @@ typedef struct _IO_FILE FILE;
extern int printf(const char *fmt, ...);
extern int vprintf(const char *fmt, va_list ap);
extern int vfprintf(FILE *stream, const char *format, va_list ap);
extern int wprintf(const wchar_t *format, ...);
#include "printf1.h"
#include "real_world.h"

18
cpp/ql/test/query-tests/Likely Bugs/Format/WrongTypeFormatArguments/Microsoft/printf1.h
View File

@@ -101,3 +101,21 @@ void fun1(unsigned char* a, unsigned char* b) {
printf("%td\n", pdt); // GOOD
printf("%td\n", a-b); // GOOD
}
typedef unsigned int wint_t;
void test_chars(char c, wchar_t wc, wint_t wt)
{
printf("%c", c); // GOOD
printf("%c", wc); // BAD [NOT DETECTED]
printf("%c", wt); // BAD [NOT DETECTED]
printf("%C", c); // BAD [NOT DETECTED]
printf("%C", wc); // GOOD (converts to wint_t)
printf("%C", wt); // GOOD
wprintf(L"%c", c); // BAD [NOT DETECTED]
wprintf(L"%c", wc); // GOOD (converts to wint_t)
wprintf(L"%c", wt); // GOOD
wprintf(L"%C", c); // GOOD
wprintf(L"%C", wc); // BAD [NOT DETECTED]
wprintf(L"%C", wt); // BAD [NOT DETECTED]
}