131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
// Test library configuration for bsd.cfg
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//
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// Usage:
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// $ cppcheck --library=bsd --check-library --enable=information --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr test/cfg/bsd.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 <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/time.h>
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#include <sys/uio.h>
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// #9323, #9331
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void verify_timercmp(struct timeval t)
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{
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(void)timercmp(&t, &t, <);
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(void)timercmp(&t, &t, <=);
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(void)timercmp(&t, &t, ==);
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(void)timercmp(&t, &t, !=);
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(void)timercmp(&t, &t, >=);
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(void)timercmp(&t, &t, >);
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}
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ssize_t nullPointer_readv(int fd, const struct iovec *iov, int iovcnt)
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{
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// cppcheck-suppress nullPointer
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(void)readv(fd,NULL,iovcnt);
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return readv(fd,iov,iovcnt);
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}
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ssize_t nullPointer_writev(int fd, const struct iovec *iov, int iovcnt)
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{
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// cppcheck-suppress nullPointer
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(void)writev(fd,NULL,iovcnt);
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return writev(fd,iov,iovcnt);
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}
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ssize_t nullPointer_preadv(int fd, const struct iovec *iov, int iovcnt, off_t offset)
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{
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// cppcheck-suppress nullPointer
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(void)preadv(fd,NULL,iovcnt,offset);
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return preadv(fd,iov,iovcnt,offset);
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}
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ssize_t nullPointer_pwritev(int fd, const struct iovec *iov, int iovcnt, off_t offset)
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{
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// cppcheck-suppress nullPointer
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(void)pwritev(fd,NULL,iovcnt,offset);
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return pwritev(fd,iov,iovcnt,offset);
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}
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// False negative: #9346
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void uninitvar_timercmp(struct timeval t)
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{
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struct timeval uninit;
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(void)timercmp(&t, &uninit, <);
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(void)timercmp(&uninit, &t, <=);
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(void)timercmp(&uninit, &uninit, ==);
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}
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void nullPointer_timercmp(struct timeval t)
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{
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struct timeval *p=0;
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// cppcheck-suppress nullPointer
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(void)timercmp(&t, p, <);
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// cppcheck-suppress nullPointer
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(void)timercmp(p, &t, <=);
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// cppcheck-suppress nullPointer
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(void)timercmp(p, p, ==);
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}
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// size_t strlcat(char *dst, const char *src, size_t size);
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void uninitvar_strlcat(char *Ct, const char *S, size_t N)
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{
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char *ct1, *ct2;
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char *s1, *s2;
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size_t n1, n2;
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// cppcheck-suppress uninitvar
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(void)strlcat(ct1,s1,n1);
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// cppcheck-suppress uninitvar
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(void)strlcat(ct2,S,N);
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// cppcheck-suppress uninitvar
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(void)strlcat(Ct,s2,N);
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// cppcheck-suppress uninitvar
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(void)strlcat(Ct,S,n2);
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// no warning is expected for
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(void)strlcat(Ct,S,N);
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}
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void bufferAccessOutOfBounds(void)
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{
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uint16_t uint16Buf[4];
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// cppcheck-suppress bufferAccessOutOfBounds
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arc4random_buf(uint16Buf, 9);
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// valid
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arc4random_buf(uint16Buf, 8);
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}
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void ignoredReturnValue(void)
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{
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// cppcheck-suppress ignoredReturnValue
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arc4random();
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// cppcheck-suppress ignoredReturnValue
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arc4random_uniform(10);
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}
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void invalidFunctionArg()
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{
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// cppcheck-suppress invalidFunctionArg
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(void) arc4random_uniform(1);
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// valid
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(void) arc4random_uniform(2);
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}
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void nullPointer(void)
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{
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// cppcheck-suppress nullPointer
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arc4random_buf(NULL, 5);
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}
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void uninitvar(void)
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{
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uint32_t uint32Uninit;
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// cppcheck-suppress uninitvar
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(void) arc4random_uniform(uint32Uninit);
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}
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