htop/Compat.h

#ifndef HEADER_Compat
#define HEADER_Compat
/*
htop - Compat.h
(C) 2020 htop dev team
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/

#include "config.h" // IWYU pragma: keep

#include <fcntl.h>
#include <stddef.h>
#include <unistd.h>
#include <sys/stat.h> // IWYU pragma: keep


int Compat_faccessat(int dirfd,
                     const char* pathname,
                     int mode,
                     int flags);

int Compat_fstatat(int dirfd,
                   const char* dirpath,
                   const char* pathname,
                   struct stat* statbuf,
                   int flags);

#ifdef HAVE_OPENAT

typedef int openat_arg_t;

static inline void Compat_openatArgClose(openat_arg_t dirfd) {
   close(dirfd);
}

static inline int Compat_openat(openat_arg_t dirfd, const char* pathname, int flags) {
   return openat(dirfd, pathname, flags);
}

#else /* HAVE_OPENAT */

typedef const char* openat_arg_t;

static inline void Compat_openatArgClose(openat_arg_t dirpath) {
   (void)dirpath;
}

int Compat_openat(openat_arg_t dirpath, const char* pathname, int flags);

#endif /* HAVE_OPENAT */

ssize_t Compat_readlinkat(int dirfd,
                          const char* dirpath,
                          const char* pathname,
                          char* buf,
                          size_t bufsize);

#endif /* HEADER_Compat */