918 lines
24 KiB
C
918 lines
24 KiB
C
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// Test library configuration for posix.cfg
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//
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// Usage:
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// $ cppcheck --check-library --library=posix --enable=information --error-exitcode=1 --inline-suppr --suppress=missingIncludeSystem test/cfg/posix.c
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// =>
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// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
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//
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#include <aio.h>
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#include <stdlib.h>
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#include <stdio.h> // <- FILE
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#include <dirent.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <dlfcn.h>
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#include <fcntl.h>
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// unavailable on some linux systems #include <ndbm.h>
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#include <netdb.h>
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#include <regex.h>
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#include <time.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <syslog.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include <stdbool.h>
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#define _XOPEN_SOURCE
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#include <wchar.h>
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#include <string.h>
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int nullPointer_wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n)
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{
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// cppcheck-suppress nullPointer
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(void)wcsncasecmp(NULL,s2,n);
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// cppcheck-suppress nullPointer
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(void)wcsncasecmp(s1,NULL,n);
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return wcsncasecmp(s1,s2,n);
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}
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int uninitvar_wcwidth(const wchar_t c)
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{
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wchar_t wc;
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// cppcheck-suppress uninitvar
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(void)wcwidth(wc);
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// No warning is expected
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return wcwidth(c);
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}
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int nullPointer_wcsnlen(const wchar_t *s, size_t n)
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{
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// cppcheck-suppress nullPointer
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(void)wcsnlen(NULL, n);
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// No warning is expected
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return wcsnlen(s, n);
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}
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size_t bufferAccessOutOfBounds_wcsnlen(void) // #10997
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{
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wchar_t buf[2]={L'4',L'2'};
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size_t len = wcsnlen(buf,2);
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// TODO cppcheck-suppress bufferAccessOutOfBounds
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len+=wcsnlen(buf,3);
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return len;
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}
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int nullPointer_gethostname(char *s, size_t n)
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{
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// cppcheck-suppress nullPointer
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(void)gethostname(NULL, n);
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// No warning is expected
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return gethostname(s, n);
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}
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int nullPointer_wcswidth(const wchar_t *s, size_t n)
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{
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// cppcheck-suppress nullPointer
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(void)wcswidth(NULL, n);
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// No warning is expected
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return wcswidth(s, n);
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}
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int nullPointer_aio_cancel(int fd, struct aiocb *aiocbp)
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{
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// No warning is expected
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(void)aio_cancel(fd, NULL);
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// No warning is expected
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return aio_cancel(fd, aiocbp);
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}
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int nullPointer_aio_fsync(int op, struct aiocb *aiocbp)
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{
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// cppcheck-suppress nullPointer
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(void)aio_fsync(op, NULL);
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// No warning is expected
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return aio_fsync(op, aiocbp);
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}
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ssize_t nullPointer_aio_return(struct aiocb *aiocbp)
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{
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// cppcheck-suppress nullPointer
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(void)aio_return(NULL);
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// No warning is expected
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return aio_return(aiocbp);
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}
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int nullPointer_aio_error(const struct aiocb *aiocbp)
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{
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// cppcheck-suppress nullPointer
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(void)aio_error(NULL);
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// No warning is expected
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return aio_error(aiocbp);
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}
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int nullPointer_aio_read(struct aiocb *aiocbp)
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{
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// cppcheck-suppress nullPointer
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(void)aio_read(NULL);
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// No warning is expected
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return aio_read(aiocbp);
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}
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int nullPointer_aio_write(struct aiocb *aiocbp)
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{
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// cppcheck-suppress nullPointer
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(void)aio_write(NULL);
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// No warning is expected
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return aio_write(aiocbp);
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}
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int nullPointer_aio_suspend(const struct aiocb *const aiocb_list[], int nitems, const struct timespec *restrict timeout)
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{
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// cppcheck-suppress nullPointer
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(void)aio_suspend(NULL, nitems, timeout);
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// No warning is expected
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return aio_suspend(aiocb_list, nitems, timeout);
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}
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// Note: Since glibc 2.28, this function symbol is no longer available to newly linked applications.
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void invalidFunctionArg_llseek(int fd, loff_t offset, int origin)
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{
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// cppcheck-suppress llseekCalled
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// cppcheck-suppress invalidFunctionArg
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(void)llseek(-1, offset, SEEK_SET);
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// cppcheck-suppress llseekCalled
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// cppcheck-suppress invalidFunctionArg
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(void)llseek(fd, offset, -1);
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// cppcheck-suppress llseekCalled
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// cppcheck-suppress invalidFunctionArg
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(void)llseek(fd, offset, 3);
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// cppcheck-suppress llseekCalled
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// cppcheck-suppress invalidFunctionArg
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(void)llseek(fd, offset, 42+SEEK_SET);
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// cppcheck-suppress llseekCalled
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// cppcheck-suppress invalidFunctionArg
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(void)llseek(fd, offset, SEEK_SET+42);
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// No invalidFunctionArg warning is expected for
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// cppcheck-suppress llseekCalled
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(void)llseek(0, offset, origin);
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// cppcheck-suppress llseekCalled
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(void)llseek(fd, offset, origin);
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// cppcheck-suppress llseekCalled
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(void)llseek(fd, offset, SEEK_SET);
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// cppcheck-suppress llseekCalled
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(void)llseek(fd, offset, SEEK_CUR);
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// cppcheck-suppress llseekCalled
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(void)llseek(fd, offset, SEEK_END);
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}
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void invalidFunctionArg_lseek64(int fd, off_t offset, int origin)
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{
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// cppcheck-suppress invalidFunctionArg
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(void)lseek64(-1, offset, SEEK_SET);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek64(fd, offset, -1);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek64(fd, offset, 3);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek64(fd, offset, 42+SEEK_SET);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek64(fd, offset, SEEK_SET+42);
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// No warning is expected for
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(void)lseek64(0, offset, origin);
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(void)lseek64(fd, offset, origin);
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(void)lseek64(fd, offset, SEEK_SET);
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(void)lseek64(fd, offset, SEEK_CUR);
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(void)lseek64(fd, offset, SEEK_END);
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}
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void invalidFunctionArg_lseek(int fd, off_t offset, int origin)
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{
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// cppcheck-suppress invalidFunctionArg
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(void)lseek(-1, offset, SEEK_SET);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek(fd, offset, -1);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek(fd, offset, 3);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek(fd, offset, 42+SEEK_SET);
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// cppcheck-suppress invalidFunctionArg
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(void)lseek(fd, offset, SEEK_SET+42);
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// No warning is expected for
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(void)lseek(0, offset, origin);
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(void)lseek(fd, offset, origin);
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(void)lseek(fd, offset, SEEK_SET);
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(void)lseek(fd, offset, SEEK_CUR);
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(void)lseek(fd, offset, SEEK_END);
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}
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void invalidFunctionArg_fseeko(FILE* stream, off_t offset, int origin)
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{
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// cppcheck-suppress invalidFunctionArg
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(void)fseeko(stream, offset, -1);
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// cppcheck-suppress invalidFunctionArg
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(void)fseeko(stream, offset, 3);
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// cppcheck-suppress invalidFunctionArg
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(void)fseeko(stream, offset, 42+SEEK_SET);
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// cppcheck-suppress invalidFunctionArg
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(void)fseeko(stream, offset, SEEK_SET+42);
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// No warning is expected for
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(void)fseeko(stream, offset, origin);
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(void)fseeko(stream, offset, SEEK_SET);
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(void)fseeko(stream, offset, SEEK_CUR);
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(void)fseeko(stream, offset, SEEK_END);
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}
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wchar_t *nullPointer_wcpncpy(wchar_t *dest, const wchar_t *src, size_t n)
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{
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// cppcheck-suppress nullPointer
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(void)wcpncpy(NULL, src, n);
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// cppcheck-suppress nullPointer
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(void)wcpncpy(dest, NULL, n);
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return wcpncpy(dest, src, n);
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}
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int nullPointer_utimes(const char *path, const struct timeval times[2])
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{
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// cppcheck-suppress nullPointer
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// cppcheck-suppress utimesCalled
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(void)utimes(NULL, times);
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// cppcheck-suppress utimesCalled
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return utimes(path, times);
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}
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char * overlappingWriteFunction_stpcpy(char *src, char *dest)
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{
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// No warning shall be shown:
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(void) stpcpy(dest, src);
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// cppcheck-suppress overlappingWriteFunction
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return stpcpy(src, src);
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}
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int nullPointer_strcasecmp(char *a, char *b)
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{
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// No warning shall be shown:
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(void) strcasecmp(a, b);
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// cppcheck-suppress nullPointer
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(void) strcasecmp(a, NULL);
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// cppcheck-suppress nullPointer
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return strcasecmp(NULL, b);
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}
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int nullPointer_strncasecmp(char *a, char *b, size_t n)
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{
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// No warning shall be shown:
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(void) strncasecmp(a, b, n);
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// cppcheck-suppress nullPointer
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(void) strncasecmp(a, NULL, n);
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// cppcheck-suppress nullPointer
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return strncasecmp(NULL, b, n);
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}
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int nullPointer_bcmp(const void *a, const void *b, size_t n)
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{
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// No nullPointer warning shall be shown:
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// cppcheck-suppress bcmpCalled
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(void) bcmp(a, b, n);
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// cppcheck-suppress nullPointer
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// cppcheck-suppress bcmpCalled
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(void) bcmp(a, NULL, n);
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// cppcheck-suppress nullPointer
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// cppcheck-suppress bcmpCalled
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return bcmp(NULL, b, n);
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}
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void nullPointer_bzero(void *s, size_t n)
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{
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// cppcheck-suppress nullPointer
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// cppcheck-suppress bzeroCalled
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bzero(NULL,n);
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// No nullPointer-warning shall be shown:
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// cppcheck-suppress bzeroCalled
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bzero(s,n);
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}
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void bufferAccessOutOfBounds_bzero(void *s, size_t n)
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{
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char buf[42];
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// cppcheck-suppress bufferAccessOutOfBounds
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// cppcheck-suppress bzeroCalled
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bzero(buf,43);
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// cppcheck-suppress bzeroCalled
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bzero(buf,42);
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// No nullPointer-warning shall be shown:
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// cppcheck-suppress bzeroCalled
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bzero(s,n);
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}
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size_t bufferAccessOutOfBounds_strnlen(const char *s, size_t maxlen)
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{
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char buf[2]={'4','2'};
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size_t len = strnlen(buf,2);
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// cppcheck-suppress bufferAccessOutOfBounds
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len+=strnlen(buf,3);
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return len;
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}
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size_t nullPointer_strnlen(const char *s, size_t maxlen)
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{
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// No warning shall be shown:
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(void) strnlen(s, maxlen);
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// cppcheck-suppress nullPointer
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return strnlen(NULL, maxlen);
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}
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char * nullPointer_stpcpy(char *src, char *dest)
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{
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// No warning shall be shown:
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(void) stpcpy(dest, src);
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// cppcheck-suppress nullPointer
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(void) stpcpy(dest, NULL);
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// cppcheck-suppress nullPointer
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return stpcpy(NULL, src);
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}
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char * nullPointer_strsep(char **stringptr, char *delim)
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{
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// No warning shall be shown:
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(void) strsep(stringptr, delim);
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// cppcheck-suppress nullPointer
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(void) strsep(stringptr, NULL);
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// cppcheck-suppress nullPointer
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return strsep(NULL, delim);
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}
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void overlappingWriteFunction_bcopy(char *buf, const size_t count)
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{
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// No warning shall be shown:
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// cppcheck-suppress bcopyCalled
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bcopy(&buf[0], &buf[3], count); // size is not known
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// cppcheck-suppress bcopyCalled
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bcopy(&buf[0], &buf[3], 3U); // no-overlap
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// cppcheck-suppress bcopyCalled
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bcopy(&buf[0], &buf[3], 4U); // The result is correct, even when both areas overlap.
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}
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void nullPointer_bcopy(const void *src, void *dest, size_t n)
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{
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// No warning shall be shown:
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// cppcheck-suppress bcopyCalled
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bcopy(src, dest, n);
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// cppcheck-suppress bcopyCalled
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// cppcheck-suppress nullPointer
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bcopy(NULL, dest, n);
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// cppcheck-suppress bcopyCalled
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// cppcheck-suppress nullPointer
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bcopy(src, NULL, n);
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}
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void overlappingWriteFunction_memccpy(unsigned char *src, unsigned char *dest, int c, size_t count)
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{
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// No warning shall be shown:
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(void)memccpy(dest, src, c, count);
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(void)memccpy(dest, src, 42, count);
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// cppcheck-suppress overlappingWriteFunction
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(void)memccpy(dest, dest, c, 4);
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// cppcheck-suppress overlappingWriteFunction
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(void)memccpy(dest, dest+3, c, 4);
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}
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void overlappingWriteFunction_stpncpy(char *src, char *dest, ssize_t n)
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{
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// No warning shall be shown:
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(void) stpncpy(dest, src, n);
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// cppcheck-suppress overlappingWriteFunction
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(void)stpncpy(src, src+3, 4);
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}
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wchar_t* overlappingWriteFunction_wcpncpy(wchar_t *src, wchar_t *dest, ssize_t n)
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{
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// No warning shall be shown:
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(void) wcpncpy(dest, src, n);
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// cppcheck-suppress overlappingWriteFunction
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return wcpncpy(src, src+3, 4);
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}
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void overlappingWriteFunction_swab(char *src, char *dest, ssize_t n)
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{
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// No warning shall be shown:
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swab(dest, src, n);
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// cppcheck-suppress overlappingWriteFunction
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swab(src, src+3, 4);
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}
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bool invalidFunctionArgBool_isascii(bool b, int c)
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{
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// cppcheck-suppress invalidFunctionArgBool
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(void)isascii(b);
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// cppcheck-suppress invalidFunctionArgBool
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return isascii(c != 0);
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}
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void uninitvar_putenv(char * envstr)
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{
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// No warning is expected
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(void)putenv(envstr);
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char * p;
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// cppcheck-suppress uninitvar
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(void)putenv(p);
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}
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void nullPointer_putenv(char * envstr)
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{
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// No warning is expected
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(void)putenv(envstr);
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char * p=NULL;
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// cppcheck-suppress nullPointer
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(void)putenv(p);
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}
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void memleak_scandir(void)
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{
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struct dirent **namelist;
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int n = scandir(".", &namelist, NULL, alphasort);
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if (n == -1) {
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return;
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}
|
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// http://man7.org/linux/man-pages/man3/scandir.3.html
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/* The scandir() function scans the directory dirp, calling filter() on
|
|
each directory entry. Entries for which filter() returns nonzero are
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|
stored in strings allocated via malloc(3), sorted using qsort(3) with
|
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the comparison function compar(), and collected in array namelist
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which is allocated via malloc(3). If filter is NULL, all entries are
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selected.*/
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// TODO: cppcheck-suppress memleak
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|
}
|
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|
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void no_memleak_scandir(void)
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{
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struct dirent **namelist;
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int n = scandir(".", &namelist, NULL, alphasort);
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if (n == -1) {
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return;
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}
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while (n--) {
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free(namelist[n]);
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}
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free(namelist);
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}
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void validCode(va_list valist_arg1, va_list valist_arg2)
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{
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void *ptr;
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if (posix_memalign(&ptr, sizeof(void *), sizeof(void *)) == 0)
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free(ptr);
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syslog(LOG_ERR, "err %u", 0U);
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syslog(LOG_WARNING, "warn %d %d", 5, 1);
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vsyslog(LOG_EMERG, "emerg %d", valist_arg1);
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vsyslog(LOG_INFO, "test %s %d %p", valist_arg2);
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void* handle = dlopen("/lib.so", RTLD_NOW);
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if (handle) {
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dlclose(handle);
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}
|
|
}
|
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|
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void bufferAccessOutOfBounds(int fd)
|
|
{
|
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char a[5];
|
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read(fd,a,5);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
read(fd,a,6);
|
|
write(fd,a,5);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
write(fd,a,6);
|
|
recv(fd,a,5,0);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
recv(fd,a,6,0);
|
|
recvfrom(fd,a,5,0,0x0,0x0);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
recvfrom(fd,a,6,0,0x0,0x0);
|
|
send(fd,a,5,0);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
send(fd,a,6,0);
|
|
sendto(fd,a,5,0,0x0,0x0);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
sendto(fd,a,6,0,0x0,0x0);
|
|
// cppcheck-suppress constStatement
|
|
0;
|
|
readlink("path", a, 5);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
readlink("path", a, 6);
|
|
readlinkat(1, "path", a, 5);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
readlinkat(1, "path", a, 6);
|
|
// This is valid
|
|
gethostname(a, 5);
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
gethostname(a, 6);
|
|
}
|
|
|
|
void nullPointer(char *p, int fd, pthread_mutex_t mutex)
|
|
{
|
|
// cppcheck-suppress ignoredReturnValue
|
|
isatty(0);
|
|
mkdir(p, 0);
|
|
getcwd(0, 0);
|
|
// cppcheck-suppress nullPointer
|
|
// cppcheck-suppress readdirCalled
|
|
readdir(0);
|
|
// cppcheck-suppress nullPointer
|
|
// cppcheck-suppress utimeCalled
|
|
utime(NULL, NULL);
|
|
// not implemented yet: cppcheck-suppress nullPointer
|
|
read(fd,NULL,42);
|
|
read(fd,NULL,0);
|
|
// not implemented yet: cppcheck-suppress nullPointer
|
|
write(fd,NULL,42);
|
|
write(fd,NULL,0);
|
|
// cppcheck-suppress leakReturnValNotUsed
|
|
// cppcheck-suppress nullPointer
|
|
open(NULL, 0);
|
|
// cppcheck-suppress leakReturnValNotUsed
|
|
// cppcheck-suppress nullPointer
|
|
open(NULL, 0, 0);
|
|
// cppcheck-suppress unreadVariable
|
|
// cppcheck-suppress nullPointer
|
|
int ret = access(NULL, 0);
|
|
// cppcheck-suppress ignoredReturnValue
|
|
// cppcheck-suppress leakReturnValNotUsed
|
|
// cppcheck-suppress nullPointer
|
|
fdopen(fd, NULL);
|
|
// cppcheck-suppress strtokCalled
|
|
// cppcheck-suppress nullPointer
|
|
strtok(p, NULL);
|
|
|
|
// cppcheck-suppress nullPointer
|
|
pthread_mutex_init(NULL, NULL);
|
|
// Second argument can be NULL
|
|
pthread_mutex_init(&mutex, NULL);
|
|
// cppcheck-suppress nullPointer
|
|
pthread_mutex_destroy(NULL);
|
|
// cppcheck-suppress nullPointer
|
|
pthread_mutex_lock(NULL);
|
|
// cppcheck-suppress nullPointer
|
|
(void)pthread_mutex_trylock(NULL);
|
|
// cppcheck-suppress nullPointer
|
|
pthread_mutex_unlock(NULL);
|
|
}
|
|
|
|
void memleak_getaddrinfo()
|
|
{
|
|
//TODO: nothing to report yet, see http://sourceforge.net/p/cppcheck/discussion/general/thread/d9737d5d/
|
|
struct addrinfo * res=NULL;
|
|
getaddrinfo("node", NULL, NULL, &res);
|
|
freeaddrinfo(res);
|
|
}
|
|
|
|
void memleak_mmap(int fd)
|
|
{
|
|
// cppcheck-suppress unusedAllocatedMemory
|
|
// cppcheck-suppress unreadVariable
|
|
void *addr = mmap(NULL, 255, PROT_NONE, MAP_PRIVATE, fd, 0);
|
|
// cppcheck-suppress memleak
|
|
}
|
|
|
|
void * memleak_mmap2() // #8327
|
|
{
|
|
void * data = mmap(NULL, 10, PROT_READ, MAP_PRIVATE, 1, 0);
|
|
if (data != MAP_FAILED)
|
|
return data;
|
|
return NULL;
|
|
}
|
|
|
|
void * identicalCondition_mmap(int fd, size_t size) // #9940
|
|
{
|
|
void* buffer = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
|
|
if (buffer == MAP_FAILED) {
|
|
return NULL;
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
void resourceLeak_fdopen(int fd)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
FILE *f = fdopen(fd, "r");
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void resourceLeak_mkstemp(char *template)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
int fp = mkstemp(template);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void no_resourceLeak_mkstemp_01(char *template)
|
|
{
|
|
int fp = mkstemp(template);
|
|
close(fp);
|
|
}
|
|
|
|
int no_resourceLeak_mkstemp_02(char *template)
|
|
{
|
|
return mkstemp(template);
|
|
}
|
|
|
|
void resourceLeak_fdopendir(int fd)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
DIR* leak1 = fdopendir(fd);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void resourceLeak_opendir(void)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
DIR* leak1 = opendir("abc");
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void resourceLeak_socket(void)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
int s = socket(AF_INET, SOCK_STREAM, 0);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void resourceLeak_open1(void)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
int fd = open("file", O_RDWR | O_CREAT);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void resourceLeak_open2(void)
|
|
{
|
|
// cppcheck-suppress unreadVariable
|
|
int fd = open("file", O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void noleak(int x, int y, int z)
|
|
{
|
|
DIR *p1 = fdopendir(x);
|
|
closedir(p1);
|
|
DIR *p2 = opendir("abc");
|
|
closedir(p2);
|
|
int s = socket(AF_INET,SOCK_STREAM,0);
|
|
close(s);
|
|
int fd1 = open("a", O_RDWR | O_CREAT);
|
|
close(fd1);
|
|
int fd2 = open("a", O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
|
|
close(fd2);
|
|
/* TODO: add configuration for open/fdopen
|
|
// #2830
|
|
int fd = open("path", O_RDONLY);
|
|
FILE *f = fdopen(fd, "rt");
|
|
fclose(f);
|
|
*/
|
|
}
|
|
|
|
|
|
// unused return value
|
|
|
|
void ignoredReturnValue(void *addr, int fd)
|
|
{
|
|
// cppcheck-suppress ignoredReturnValue
|
|
// cppcheck-suppress leakReturnValNotUsed
|
|
mmap(addr, 255, PROT_NONE, MAP_PRIVATE, fd, 0);
|
|
// cppcheck-suppress ignoredReturnValue
|
|
getuid();
|
|
// cppcheck-suppress ignoredReturnValue
|
|
access("filename", 1);
|
|
// no ignoredReturnValue shall be shown for
|
|
setuid(42);
|
|
}
|
|
|
|
|
|
// valid range
|
|
|
|
void invalidFunctionArg()
|
|
{
|
|
// cppcheck-suppress invalidFunctionArg
|
|
// cppcheck-suppress usleepCalled
|
|
usleep(-1);
|
|
// cppcheck-suppress usleepCalled
|
|
usleep(0);
|
|
// cppcheck-suppress usleepCalled
|
|
usleep(999999);
|
|
// cppcheck-suppress invalidFunctionArg
|
|
// cppcheck-suppress usleepCalled
|
|
usleep(1000000);
|
|
}
|
|
|
|
void invalidFunctionArg_close(int fd)
|
|
{
|
|
if (fd < 0) {
|
|
// cppcheck-suppress invalidFunctionArg
|
|
(void)close(fd);
|
|
}
|
|
}
|
|
|
|
void uninitvar(int fd)
|
|
{
|
|
int x1, x2, x3, x4;
|
|
char buf[2];
|
|
int decimal, sign;
|
|
double d;
|
|
void *p;
|
|
pthread_mutex_t mutex, mutex1, mutex2, mutex3;
|
|
// cppcheck-suppress uninitvar
|
|
write(x1,"ab",2);
|
|
// TODO cppcheck-suppress uninitvar
|
|
write(fd,buf,2); // #6325
|
|
// cppcheck-suppress uninitvar
|
|
write(fd,"ab",x2);
|
|
// cppcheck-suppress uninitvar
|
|
write(fd,p,2);
|
|
|
|
|
|
/* int regcomp(regex_t *restrict preg, const char *restrict pattern, int cflags); */
|
|
regex_t reg;
|
|
const char * pattern;
|
|
int cflags1, cflags2;
|
|
// cppcheck-suppress uninitvar
|
|
regcomp(®, pattern, cflags1);
|
|
pattern="";
|
|
// cppcheck-suppress uninitvar
|
|
regcomp(®, pattern, cflags2);
|
|
regerror(0, ®, 0, 0);
|
|
#ifndef __CYGWIN__
|
|
// cppcheck-suppress uninitvar
|
|
// cppcheck-suppress unreadVariable
|
|
// cppcheck-suppress ecvtCalled
|
|
char *buffer = ecvt(d, 11, &decimal, &sign);
|
|
#endif
|
|
// cppcheck-suppress gcvtCalled
|
|
gcvt(3.141, 2, buf);
|
|
|
|
char *filename1, *filename2;
|
|
struct utimbuf *times;
|
|
// cppcheck-suppress uninitvar
|
|
// cppcheck-suppress utimeCalled
|
|
utime(filename1, times);
|
|
struct timeval times1[2];
|
|
// cppcheck-suppress uninitvar
|
|
// cppcheck-suppress utimeCalled
|
|
utime(filename2, times1);
|
|
|
|
// cppcheck-suppress unreadVariable
|
|
// cppcheck-suppress uninitvar
|
|
int access_ret = access("file", x3);
|
|
|
|
// cppcheck-suppress ignoredReturnValue
|
|
// cppcheck-suppress leakReturnValNotUsed
|
|
// cppcheck-suppress uninitvar
|
|
fdopen(x4, "rw");
|
|
|
|
char *strtok_arg1;
|
|
// cppcheck-suppress strtokCalled
|
|
// cppcheck-suppress uninitvar
|
|
strtok(strtok_arg1, ";");
|
|
|
|
// cppcheck-suppress uninitvar
|
|
pthread_mutex_lock(&mutex1);
|
|
// cppcheck-suppress uninitvar
|
|
(void)pthread_mutex_trylock(&mutex2);
|
|
// cppcheck-suppress uninitvar
|
|
pthread_mutex_unlock(&mutex3);
|
|
// after initialization it must be OK to call lock, trylock and unlock for this mutex
|
|
pthread_mutex_init(&mutex, NULL);
|
|
pthread_mutex_lock(&mutex);
|
|
(void)pthread_mutex_trylock(&mutex);
|
|
pthread_mutex_unlock(&mutex);
|
|
}
|
|
|
|
void uninitvar_getcwd(void)
|
|
{
|
|
char *buf;
|
|
size_t size;
|
|
// cppcheck-suppress uninitvar
|
|
(void)getcwd(buf,size);
|
|
}
|
|
|
|
|
|
void uninitvar_types(void)
|
|
{
|
|
// cppcheck-suppress unassignedVariable
|
|
blkcnt_t b;
|
|
// cppcheck-suppress uninitvar
|
|
b + 1;
|
|
|
|
struct dirent d;
|
|
// TODO cppcheck-suppress uninitvar
|
|
d.d_ino + 1;
|
|
}
|
|
|
|
void timet_h(struct timespec* ptp1)
|
|
{
|
|
clockid_t clk_id1, clk_id2, clk_id3;
|
|
struct timespec* ptp;
|
|
// cppcheck-suppress uninitvar
|
|
clock_settime(CLOCK_REALTIME, ptp);
|
|
// cppcheck-suppress uninitvar
|
|
clock_settime(clk_id1, ptp);
|
|
// cppcheck-suppress uninitvar
|
|
clock_settime(clk_id2, ptp1);
|
|
|
|
struct timespec tp;
|
|
// cppcheck-suppress uninitvar
|
|
clock_settime(CLOCK_REALTIME, &tp); // #6577 - false negative
|
|
// cppcheck-suppress uninitvar
|
|
clock_settime(clk_id3, &tp);
|
|
|
|
time_t clock = time(0);
|
|
char buf[26];
|
|
// cppcheck-suppress ctime_rCalled
|
|
ctime_r(&clock, buf);
|
|
}
|
|
|
|
void dl(const char* libname, const char* func)
|
|
{
|
|
void* lib = dlopen(libname, RTLD_NOW);
|
|
// cppcheck-suppress redundantInitialization
|
|
// cppcheck-suppress resourceLeak
|
|
lib = dlopen(libname, RTLD_LAZY);
|
|
const char* funcname;
|
|
// cppcheck-suppress uninitvar
|
|
// cppcheck-suppress unreadVariable
|
|
void* sym = dlsym(lib, funcname);
|
|
// cppcheck-suppress ignoredReturnValue
|
|
dlsym(lib, "foo");
|
|
void* uninit;
|
|
// cppcheck-suppress uninitvar
|
|
dlclose(uninit);
|
|
// cppcheck-suppress resourceLeak
|
|
}
|
|
|
|
void asctime_r_test(struct tm * tm, char * bufSizeUnknown)
|
|
{
|
|
struct tm tm_uninit_data;
|
|
struct tm * tm_uninit_pointer;
|
|
char bufSize5[5];
|
|
char bufSize25[25];
|
|
char bufSize26[26];
|
|
char bufSize100[100];
|
|
|
|
// cppcheck-suppress asctime_rCalled
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
asctime_r(tm, bufSize5);
|
|
// cppcheck-suppress asctime_rCalled
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
asctime_r(tm, bufSize25);
|
|
// cppcheck-suppress asctime_rCalled
|
|
asctime_r(tm, bufSize26);
|
|
// cppcheck-suppress asctime_rCalled
|
|
asctime_r(tm, bufSize100);
|
|
|
|
// cppcheck-suppress asctime_rCalled
|
|
// cppcheck-suppress uninitvar
|
|
asctime_r(&tm_uninit_data, bufSize100);
|
|
// cppcheck-suppress asctime_rCalled
|
|
// cppcheck-suppress uninitvar
|
|
asctime_r(tm_uninit_pointer, bufSize100);
|
|
|
|
// cppcheck-suppress asctime_rCalled
|
|
asctime_r(tm, bufSizeUnknown);
|
|
}
|
|
|
|
void ctime_r_test(time_t * timep, char * bufSizeUnknown)
|
|
{
|
|
time_t time_t_uninit_data;
|
|
time_t * time_t_uninit_pointer;
|
|
char bufSize5[5];
|
|
char bufSize25[25];
|
|
char bufSize26[26];
|
|
char bufSize100[100];
|
|
|
|
// cppcheck-suppress ctime_rCalled
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
ctime_r(timep, bufSize5);
|
|
// cppcheck-suppress ctime_rCalled
|
|
// cppcheck-suppress bufferAccessOutOfBounds
|
|
ctime_r(timep, bufSize25);
|
|
// cppcheck-suppress ctime_rCalled
|
|
ctime_r(timep, bufSize26);
|
|
// cppcheck-suppress ctime_rCalled
|
|
ctime_r(timep, bufSize100);
|
|
|
|
// cppcheck-suppress ctime_rCalled
|
|
// cppcheck-suppress uninitvar
|
|
ctime_r(&time_t_uninit_data, bufSize100);
|
|
// cppcheck-suppress ctime_rCalled
|
|
// cppcheck-suppress uninitvar
|
|
ctime_r(time_t_uninit_pointer, bufSize100);
|
|
|
|
// cppcheck-suppress ctime_rCalled
|
|
ctime_r(timep, bufSizeUnknown);
|
|
}
|