openssh/openbsd-compat/bsd-misc.h
Darren Tucker c867706507 Add pselect implementation for platforms without.
This is basically the existing notify_pipe kludge from serverloop.c
moved behind a pselect interface.  It works by installing a signal
handler that writes to a pipe that the select is watching, then calls
the original handler.

The select call in serverloop will become pselect soon, at which point the
kludge will be removed from thereand will only exist in the compat layer.
Original code by markus, help from djm.
2021-06-04 18:39:48 +10:00

197 lines
4.4 KiB
C

/*
* Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _BSD_MISC_H
#define _BSD_MISC_H
#include "includes.h"
char *ssh_get_progname(char *);
#ifndef HAVE_SETSID
#define setsid() setpgrp(0, getpid())
#endif /* !HAVE_SETSID */
#ifndef HAVE_SETENV
int setenv(const char *, const char *, int);
#endif /* !HAVE_SETENV */
#ifndef HAVE_SETLOGIN
int setlogin(const char *);
#endif /* !HAVE_SETLOGIN */
#ifndef HAVE_INNETGR
int innetgr(const char *, const char *, const char *, const char *);
#endif /* HAVE_INNETGR */
#if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
int seteuid(uid_t);
#endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
#if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
int setegid(uid_t);
#endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
#if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
const char *strerror(int);
#endif
#if !defined(HAVE_SETLINEBUF)
#define setlinebuf(a) (setvbuf((a), NULL, _IOLBF, 0))
#endif
#ifndef HAVE_UTIMES
#ifndef HAVE_STRUCT_TIMEVAL
struct timeval {
long tv_sec;
long tv_usec;
}
#endif /* HAVE_STRUCT_TIMEVAL */
int utimes(char *, struct timeval *);
#endif /* HAVE_UTIMES */
#ifndef AT_FDCWD
# define AT_FDCWD (-2)
#endif
#ifndef HAVE_FCHMODAT
int fchmodat(int, const char *, mode_t, int);
#endif
#ifndef HAVE_FCHOWNAT
int fchownat(int, const char *, uid_t, gid_t, int);
#endif
#ifndef HAVE_TRUNCATE
int truncate (const char *, off_t);
#endif /* HAVE_TRUNCATE */
#ifndef HAVE_STRUCT_TIMESPEC
struct timespec {
time_t tv_sec;
long tv_nsec;
};
#endif /* !HAVE_STRUCT_TIMESPEC */
#if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
# include <time.h>
int nanosleep(const struct timespec *, struct timespec *);
#endif
#ifndef HAVE_UTIMENSAT
# include <time.h>
/* start with the high bits and work down to minimise risk of overlap */
# ifndef AT_SYMLINK_NOFOLLOW
# define AT_SYMLINK_NOFOLLOW 0x80000000
# endif
int utimensat(int, const char *, const struct timespec[2], int);
#endif /* !HAVE_UTIMENSAT */
#ifndef HAVE_USLEEP
int usleep(unsigned int useconds);
#endif
#ifndef HAVE_TCGETPGRP
pid_t tcgetpgrp(int);
#endif
#ifndef HAVE_TCSENDBREAK
int tcsendbreak(int, int);
#endif
#ifndef HAVE_UNSETENV
int unsetenv(const char *);
#endif
#ifndef HAVE_ISBLANK
int isblank(int);
#endif
#ifndef HAVE_GETPGID
pid_t getpgid(pid_t);
#endif
#ifndef HAVE_PSELECT
int pselect(int, fd_set *, fd_set *, fd_set *, const struct timespec *,
const sigset_t *);
#endif
#ifndef HAVE_ENDGRENT
# define endgrent() do { } while(0)
#endif
#ifndef HAVE_KRB5_GET_ERROR_MESSAGE
# define krb5_get_error_message krb5_get_err_text
#endif
#ifndef HAVE_KRB5_FREE_ERROR_MESSAGE
# define krb5_free_error_message(a,b) do { } while(0)
#endif
#ifndef HAVE_PLEDGE
int pledge(const char *promises, const char *paths[]);
#endif
/* bsd-err.h */
#ifndef HAVE_ERR
void err(int, const char *, ...) __attribute__((format(printf, 2, 3)));
#endif
#ifndef HAVE_ERRX
void errx(int, const char *, ...) __attribute__((format(printf, 2, 3)));
#endif
#ifndef HAVE_WARN
void warn(const char *, ...) __attribute__((format(printf, 1, 2)));
#endif
#ifndef HAVE_LLABS
long long llabs(long long);
#endif
#if defined(HAVE_DECL_BZERO) && HAVE_DECL_BZERO == 0
void bzero(void *, size_t);
#endif
#ifndef HAVE_RAISE
int raise(int);
#endif
#ifndef HAVE_GETSID
pid_t getsid(pid_t);
#endif
#ifndef HAVE_FLOCK
# define LOCK_SH 0x01
# define LOCK_EX 0x02
# define LOCK_NB 0x04
# define LOCK_UN 0x08
int flock(int, int);
#endif
#ifdef FFLUSH_NULL_BUG
# define fflush(x) (_ssh_compat_fflush(x))
#endif
#ifndef HAVE_LOCALTIME_R
struct tm *localtime_r(const time_t *, struct tm *);
#endif
#ifndef HAVE_REALPATH
#define realpath(x, y) (sftp_realpath((x), (y)))
#endif
#endif /* _BSD_MISC_H */