diff options
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 41 |
1 files changed, 41 insertions, 0 deletions
@@ -9,6 +9,7 @@ #include <stdlib.h> #include <stdarg.h> #include <stdbool.h> +#include <string.h> #include "log.h" @@ -225,4 +226,44 @@ int __daemon(int pidfile_fd, int devnull_fd); int fls(unsigned long x); int write_file(const char *path, const char *buf); +/* + * Workarounds for https://github.com/llvm/llvm-project/issues/58992 + * + * For a number (maybe all) system calls that _write_ a socket address, + * clang-tidy doesn't register that the memory of the socket address will be + * initialised after the call. This can't easily be worked around with + * clang-tidy suppressions, because the warning doesn't show on the syscall + * itself but later when we access the supposedly uninitialised field. + */ +static inline void sa_init(struct sockaddr *sa, socklen_t *sl) +{ +#ifdef CLANG_TIDY_58992 + if (sa) + memset(sa, 0, *sl); +#else + (void)sa; + (void)sl; +#endif /* CLANG_TIDY_58992 */ +} + +static inline ssize_t wrap_recvfrom(int sockfd, void *buf, size_t len, + int flags, + struct sockaddr *src_addr, + socklen_t *addrlen) +{ + sa_init(src_addr, addrlen); + return recvfrom(sockfd, buf, len, flags, src_addr, addrlen); +} +#define recvfrom(s, buf, len, flags, src, addrlen) \ + wrap_recvfrom((s), (buf), (len), (flags), (src), (addrlen)) + +static inline int wrap_accept4(int sockfd, struct sockaddr *addr, + socklen_t *addrlen, int flags) +{ + sa_init(addr, addrlen); + return accept4(sockfd, addr, addrlen, flags); +} +#define accept4(s, addr, addrlen, flags) \ + wrap_accept4((s), (addr), (addrlen), (flags)) + #endif /* UTIL_H */ |