// run-time libraries.
// These tools can not use some of the libc functions directly because those
// functions are intercepted. Instead, we implement a tiny subset of libc here.
+// FIXME: Some of functions declared in this file are in fact POSIX, not libc.
//===----------------------------------------------------------------------===//
+
#ifndef SANITIZER_LIBC_H
#define SANITIZER_LIBC_H
// String functions
s64 internal_atoll(const char *nptr);
void *internal_memchr(const void *s, int c, uptr n);
+void *internal_memrchr(const void *s, int c, uptr n);
int internal_memcmp(const void* s1, const void* s2, uptr n);
void *internal_memcpy(void *dest, const void *src, uptr n);
void *internal_memmove(void *dest, const void *src, uptr n);
int internal_strcmp(const char *s1, const char *s2);
uptr internal_strcspn(const char *s, const char *reject);
char *internal_strdup(const char *s);
+char *internal_strndup(const char *s, uptr n);
uptr internal_strlen(const char *s);
char *internal_strncat(char *dst, const char *src, uptr n);
int internal_strncmp(const char *s1, const char *s2, uptr n);
// Optimized for the case when the result is true.
bool mem_is_zero(const char *mem, uptr size);
-
-// Memory
-uptr internal_mmap(void *addr, uptr length, int prot, int flags,
- int fd, u64 offset);
-uptr internal_munmap(void *addr, uptr length);
-
// I/O
-const fd_t kInvalidFd = -1;
+const fd_t kInvalidFd = (fd_t)-1;
const fd_t kStdinFd = 0;
-const fd_t kStdoutFd = 1;
-const fd_t kStderrFd = 2;
-uptr internal_close(fd_t fd);
-int internal_isatty(fd_t fd);
+const fd_t kStdoutFd = (fd_t)1;
+const fd_t kStderrFd = (fd_t)2;
-// Use __sanitizer::OpenFile() instead.
-uptr internal_open(const char *filename, int flags);
-uptr internal_open(const char *filename, int flags, u32 mode);
-
-uptr internal_read(fd_t fd, void *buf, uptr count);
-uptr internal_write(fd_t fd, const void *buf, uptr count);
+uptr internal_ftruncate(fd_t fd, uptr size);
// OS
-uptr internal_filesize(fd_t fd); // -1 on error.
-uptr internal_stat(const char *path, void *buf);
-uptr internal_lstat(const char *path, void *buf);
-uptr internal_fstat(fd_t fd, void *buf);
-uptr internal_dup2(int oldfd, int newfd);
-uptr internal_readlink(const char *path, char *buf, uptr bufsize);
-uptr internal_unlink(const char *path);
void NORETURN internal__exit(int exitcode);
-uptr internal_lseek(fd_t fd, OFF_T offset, int whence);
-uptr internal_ptrace(int request, int pid, void *addr, void *data);
-uptr internal_waitpid(int pid, int *status, int options);
uptr internal_getpid();
uptr internal_getppid();
uptr internal_sched_yield();
// Error handling
-bool internal_iserror(uptr retval, int *rverrno = 0);
-
-int internal_sigaction(int signum, const void *act, void *oldact);
+bool internal_iserror(uptr retval, int *rverrno = nullptr);
-} // namespace __sanitizer
+} // namespace __sanitizer
-#endif // SANITIZER_LIBC_H
+#endif // SANITIZER_LIBC_H