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// Test library configuration for bsd.cfg
//
// Usage:
// $ cppcheck --check-library --library=bsd --enable=style,information --inconclusive --error-exitcode=1 --inline-suppr test/cfg/bsd.c
// =>
// No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0
//
// cppcheck-suppress-file valueFlowBailout
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/time.h>
#include <sys/uio.h>
void nullPointer_setbuffer(FILE *stream, char *buf, size_t size)
{
// cppcheck-suppress nullPointer
(void) setbuffer(NULL, buf, size);
(void) setbuffer(stream, NULL, size);
(void) setbuffer(stream, buf, size);
}
void nullPointer_setlinebuf(FILE *stream)
{
// cppcheck-suppress nullPointer
(void)setlinebuf(NULL);
(void)setlinebuf(stream);
}
// #9323, #9331
void verify_timercmp(struct timeval t)
{
// TODO cppcheck-suppress duplicateExpression
(void)timercmp(&t, &t, <);
// TODO cppcheck-suppress duplicateExpression
(void)timercmp(&t, &t, <=);
(void)timercmp(&t, &t, ==);
(void)timercmp(&t, &t, !=);
// TODO cppcheck-suppress duplicateExpression
(void)timercmp(&t, &t, >=);
// TODO cppcheck-suppress duplicateExpression
(void)timercmp(&t, &t, >);
}
ssize_t nullPointer_readv(int fd, const struct iovec *iov, int iovcnt)
{
// cppcheck-suppress nullPointer
(void)readv(fd,NULL,iovcnt);
return readv(fd,iov,iovcnt);
}
ssize_t nullPointer_writev(int fd, const struct iovec *iov, int iovcnt)
{
// cppcheck-suppress nullPointer
(void)writev(fd,NULL,iovcnt);
return writev(fd,iov,iovcnt);
}
ssize_t nullPointer_preadv(int fd, const struct iovec *iov, int iovcnt, off_t offset)
{
// cppcheck-suppress nullPointer
(void)preadv(fd,NULL,iovcnt,offset);
return preadv(fd,iov,iovcnt,offset);
}
ssize_t nullPointer_pwritev(int fd, const struct iovec *iov, int iovcnt, off_t offset)
{
// cppcheck-suppress nullPointer
(void)pwritev(fd,NULL,iovcnt,offset);
return pwritev(fd,iov,iovcnt,offset);
}
// False negative: #9346
void uninitvar_timercmp(struct timeval t)
{
struct timeval uninit;
// cppcheck-suppress uninitvar
(void)timercmp(&t, &uninit, <);
(void)timercmp(&uninit, &t, <=);
(void)timercmp(&uninit, &uninit, ==);
}
void nullPointer_timercmp(struct timeval t)
{
// cppcheck-suppress constVariablePointer
struct timeval *p=0;
// cppcheck-suppress nullPointer
(void)timercmp(&t, p, <);
// cppcheck-suppress nullPointer
(void)timercmp(p, &t, <=);
// cppcheck-suppress nullPointer
(void)timercmp(p, p, ==);
}
// size_t strlcat(char *dst, const char *src, size_t size);
void uninitvar_strlcat(char *Ct, const char *S, size_t N)
{
char *ct1, *ct2;
char *s1, *s2;
size_t n1, n2;
// cppcheck-suppress uninitvar
(void)strlcat(ct1,s1,n1);
// cppcheck-suppress uninitvar
(void)strlcat(ct2,S,N);
// cppcheck-suppress uninitvar
(void)strlcat(Ct,s2,N);
// cppcheck-suppress uninitvar
(void)strlcat(Ct,S,n2);
// no warning is expected for
(void)strlcat(Ct,S,N);
}
void bufferAccessOutOfBounds(void)
{
uint16_t uint16Buf[4];
// cppcheck-suppress bufferAccessOutOfBounds
arc4random_buf(uint16Buf, 9);
// valid
arc4random_buf(uint16Buf, 8);
}
void ignoredReturnValue(void)
{
// cppcheck-suppress ignoredReturnValue
arc4random();
// cppcheck-suppress ignoredReturnValue
arc4random_uniform(10);
}
void invalidFunctionArg()
{
// cppcheck-suppress invalidFunctionArg
(void) arc4random_uniform(1);
// valid
(void) arc4random_uniform(2);
}
void nullPointer(void)
{
// cppcheck-suppress nullPointer
arc4random_buf(NULL, 5);
}
void uninitvar(void)
{
uint32_t uint32Uninit;
// cppcheck-suppress uninitvar
(void) arc4random_uniform(uint32Uninit);
}
void arrayIndexOutOfBounds(void)
{
char * pAlloc = calloc(2, 3);
// cppcheck-suppress nullPointerOutOfMemory
pAlloc[5] = 'a';
// cppcheck-suppress arrayIndexOutOfBounds
// cppcheck-suppress nullPointerOutOfMemory
pAlloc[6] = 1;
// cppcheck-suppress memleakOnRealloc
pAlloc = reallocarray(pAlloc, 3, 3);
pAlloc[8] = 'a';
// cppcheck-suppress arrayIndexOutOfBounds
pAlloc[9] = 1;
free(pAlloc);
}
void reallocarray_memleak(void) {
char *a = (char *)malloc(10);
// cppcheck-suppress [memleakOnRealloc, unreadVariable]
a = reallocarray(a, 100, 2);
// cppcheck-suppress memleak
}
void reallocarray_notused(void)
{
// cppcheck-suppress [leakReturnValNotUsed, ignoredReturnValue]
reallocarray(NULL, 10, 10);
}
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