TestNullPointer: Moved some std.cfg tests to the cfg testing
This commit is contained in:
Daniel Marjamäki
parent
7d0f5ad7c1
commit
70a38b1da6
|
|
@ -8,6 +8,7 @@
|
|||
//
|
||||
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
|
||||
void strcpy_ok(char *a, char *b) {
|
||||
strcpy(a,b);
|
||||
|
|
@ -20,3 +21,96 @@ void strcpy_bad() {
|
|||
}
|
||||
|
||||
|
||||
// null pointer
|
||||
|
||||
void nullpointer(int value){
|
||||
int res = 0;
|
||||
FILE *fp;
|
||||
|
||||
// cppcheck-suppress nullPointer
|
||||
clearerr(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
feof(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fgetc(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fclose(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
ferror(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
ftell(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
puts(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fp=fopen(0,0);
|
||||
fclose(fp); fp = 0;
|
||||
// No FP
|
||||
fflush(0);
|
||||
// No FP
|
||||
fp = freopen(0,"abc",stdin);
|
||||
fclose(fp); fp = 0;
|
||||
// cppcheck-suppress nullPointer
|
||||
fputc(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fputs(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fgetpos(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
fsetpos(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
itoa(123,0,10);
|
||||
// cppcheck-suppress nullPointer
|
||||
strchr(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strlen(0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strcpy(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strspn(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strcspn(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strcoll(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strcat(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strcmp(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strncpy(0,0,1);
|
||||
// cppcheck-suppress nullPointer
|
||||
strncat(0,0,1);
|
||||
// cppcheck-suppress nullPointer
|
||||
strncmp(0,0,1);
|
||||
// cppcheck-suppress nullPointer
|
||||
strstr(0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strtoul(0,0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strtoull(0,0,0);
|
||||
// cppcheck-suppress nullPointer
|
||||
strtol(0,0,0);
|
||||
|
||||
// #6100 False positive nullPointer - calling mbstowcs(NULL,)
|
||||
res += mbstowcs(0,value,0);
|
||||
res += wcstombs(0,value,0);
|
||||
|
||||
strtok(NULL,"xyz");
|
||||
|
||||
strxfrm(0,"foo",0);
|
||||
// TODO: error message
|
||||
strxfrm(0,"foo",42);
|
||||
}
|
||||
|
||||
void nullpointerMemchr1(char *p, char *s) {
|
||||
p = memchr (s, 'p', strlen(s));
|
||||
}
|
||||
|
||||
void nullpointerMemchr2(char *p, char *s) {
|
||||
p = memchr (s, 0, strlen(s));
|
||||
}
|
||||
|
||||
void nullpointerMemchr3(char *p) {
|
||||
char *s = 0;
|
||||
// cppcheck-suppress nullPointer
|
||||
p = memchr (s, 0, strlen(s));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -32,6 +32,8 @@ private:
|
|||
Settings settings;
|
||||
|
||||
void run() {
|
||||
// Load std.cfg library file
|
||||
// TODO: This will be removed. The std.cfg is tested with the cfg testing.
|
||||
LOAD_LIB_2(settings.library, "std.cfg");
|
||||
|
||||
TEST_CASE(nullpointerAfterLoop);
|
||||
|
|
@ -83,12 +85,8 @@ private:
|
|||
TEST_CASE(functioncallDefaultArguments);
|
||||
TEST_CASE(nullpointer_internal_error); // #5080
|
||||
TEST_CASE(nullpointerFputc); // #5645 FP: Null pointer dereference in fputc argument
|
||||
TEST_CASE(nullpointerMemchr);
|
||||
TEST_CASE(nullpointerPutchar);
|
||||
|
||||
// Test that std.cfg is configured correctly
|
||||
TEST_CASE(stdcfg);
|
||||
|
||||
// Load posix library file
|
||||
LOAD_LIB_2(settings.library, "posix.cfg");
|
||||
// Test that posix.cfg is configured correctly
|
||||
|
|
@ -1780,31 +1778,6 @@ private:
|
|||
|
||||
// Test CheckNullPointer::nullConstantDereference
|
||||
void nullConstantDereference() {
|
||||
// Ticket #2090
|
||||
check("void foo() {\n"
|
||||
" strcpy(0, \"abcd\");\n"
|
||||
"}");
|
||||
ASSERT_EQUALS("[test.cpp:2]: (error) Null pointer dereference\n", errout.str());
|
||||
|
||||
// Ticket #1171
|
||||
check("void foo(void* bar) {\n"
|
||||
" if(strcmp(0, bar) == 0)\n"
|
||||
" func();\n"
|
||||
"}");
|
||||
ASSERT_EQUALS("[test.cpp:2]: (error) Null pointer dereference\n", errout.str());
|
||||
|
||||
// Ticket #2413 - it's ok to pass NULL to fflush
|
||||
check("void foo() {\n"
|
||||
" fflush(NULL);\n"
|
||||
"}", true);
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
|
||||
// Ticket #3126 - don't confuse member function with standard function
|
||||
check("void f() {\n"
|
||||
" image1.fseek(0, SEEK_SET);\n"
|
||||
"}", true);
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
|
||||
check("void f() {\n"
|
||||
" int* p = 0;\n"
|
||||
" return p[4];\n"
|
||||
|
|
@ -1812,18 +1785,10 @@ private:
|
|||
ASSERT_EQUALS("[test.cpp:3]: (error) Possible null pointer dereference: p\n"
|
||||
"[test.cpp:3]: (error) Null pointer dereference\n", errout.str());
|
||||
|
||||
check("void f(int x) {\n" // #4809 - passing "NULL"
|
||||
" itoa(x,NULL,10);\n"
|
||||
"}");
|
||||
ASSERT_EQUALS("[test.cpp:2]: (error) Null pointer dereference\n", errout.str());
|
||||
|
||||
check("void f() {\n"
|
||||
" typeof(*NULL) y;\n"
|
||||
"}", true);
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
|
||||
check("void f() { freopen(NULL, m, stdin); }");
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
}
|
||||
|
||||
void gcc_statement_expression() {
|
||||
|
|
@ -2514,114 +2479,6 @@ private:
|
|||
ASSERT_EQUALS("", errout.str());
|
||||
}
|
||||
|
||||
// Test that std.cfg is configured correctly
|
||||
void stdcfg() {
|
||||
const char errp[] = "[test.cpp:1] -> [test.cpp:1]: (warning) Possible null pointer dereference: p - otherwise it is redundant to check it against null.\n";
|
||||
const char errpq[] = "[test.cpp:1] -> [test.cpp:1]: (warning) Possible null pointer dereference: p - otherwise it is redundant to check it against null.\n"
|
||||
"[test.cpp:1] -> [test.cpp:1]: (warning) Possible null pointer dereference: q - otherwise it is redundant to check it against null.\n";
|
||||
|
||||
check("void f(FILE *p){ clearerr (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(FILE *p){ feof (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(FILE *p){ fgetc (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(FILE *p){ fclose (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(FILE *p){ ferror (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(FILE *p){ ftell (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char *p){ puts (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ fopen (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,FILE * q){ fputc (*p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,FILE * q){ fputs (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(FILE * p,fpos_t * q){ fgetpos (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(FILE * p,fpos_t * q){ fsetpos (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p){ strchr (p,c);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p){ putchar (*p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p){ strlen (p);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strcpy (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strspn (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strcspn (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strcoll (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strcat (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strcmp (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strncpy (p,q,1);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strncat (p,q,1);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strncmp (p,q,1);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strstr (p,q);if(!p||!q){}}");
|
||||
ASSERT_EQUALS(errpq,errout.str());
|
||||
|
||||
// strtol etc
|
||||
check("void f(char * p,char * q){ strtoul (p,q,0);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strtoull (p,q,0);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
check("void f(char * p,char * q){ strtol (p,q,0);if(!p){}}");
|
||||
ASSERT_EQUALS(errp,errout.str());
|
||||
|
||||
// #6100 False positive nullPointer - calling mbstowcs(NULL,)
|
||||
check("size_t get (char *value) { return mbstowcs (NULL, value, 0); }");
|
||||
ASSERT_EQUALS("",errout.str());
|
||||
check("size_t get (wchar_t *value) { return wcstombs (NULL, value, 0); }");
|
||||
ASSERT_EQUALS("",errout.str());
|
||||
|
||||
check("void f() { strtok(NULL, 'x');}");
|
||||
ASSERT_EQUALS("",errout.str());
|
||||
|
||||
// #6306 "false positive with strxfrm NULL argument"
|
||||
check("void foo(void) { size_t res = strxfrm(NULL, \"foo\", 0); }");
|
||||
ASSERT_EQUALS("",errout.str());
|
||||
check("void foo(void) { size_t res = strxfrm(NULL, \"foo\", 42); }");
|
||||
TODO_ASSERT_EQUALS("[test.cpp:1]: (error) Null pointer dereference\n", "", errout.str());
|
||||
|
||||
}
|
||||
|
||||
void nullpointerFputc() {
|
||||
check("int main () {\n"
|
||||
"FILE *fp = fopen(\"file.txt\", \"w+\");\n"
|
||||
|
|
@ -2641,24 +2498,6 @@ private:
|
|||
ASSERT_EQUALS("[test.cpp:3]: (error) Possible null pointer dereference: nullstring\n", errout.str());
|
||||
}
|
||||
|
||||
void nullpointerMemchr() {
|
||||
check("void f (char *p, char *s) {\n"
|
||||
" p = memchr (s, 'p', strlen(s));\n"
|
||||
"}\n");
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
|
||||
check("void f (char *p, char *s) {\n"
|
||||
" p = memchr (s, 0, strlen(s));\n"
|
||||
"}\n");
|
||||
ASSERT_EQUALS("", errout.str());
|
||||
|
||||
check("void f (char *p) {\n"
|
||||
" char *s = 0;\n"
|
||||
" p = memchr (s, 0, strlen(s));\n"
|
||||
"}\n");
|
||||
ASSERT_EQUALS("[test.cpp:3]: (error) Possible null pointer dereference: s\n", errout.str());
|
||||
}
|
||||
|
||||
void nullpointerPutchar() {
|
||||
check("void f (char *c) {\n"
|
||||
" putchar(c);\n"
|
||||
|
|
|
|||
Loading…
Reference in New Issue