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Move setproctitle() from libutil to libc (after a repo-copy)
and bump __FreeBSD_version to 500012 to mark the occasion. setproctitle() is prototyped in unistd.h as opposed to stdlib.h where OpenBSD and NetBSD have it. Reviewed by: peter
This commit is contained in:
Brian Somers
parent
72f21cf2c5
commit
9feac5c218
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=65353
@ -968,7 +968,11 @@ typedef int pid_t;
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# if __FreeBSD__ >= 2
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# include <osreldate.h>
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# if __FreeBSD_version >= 199512 /* 2.2-current when it appeared */
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# include <libutil.h>
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# if __FreeBSD_version >= 500012 /* Moved to libc in 5.0-current */
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# include <unistd.h>
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# else
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# include <libutil.h>
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# endif
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# define SPT_TYPE SPT_BUILTIN
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# endif /* __FreeBSD_version >= 199512 */
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# if __FreeBSD_version >= 222000 /* 2.2.2-release and later */
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@ -96,6 +96,7 @@ ssize_t read __P((int, void *, size_t));
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int rmdir __P((const char *));
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int setgid __P((gid_t));
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int setpgid __P((pid_t, pid_t));
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void setproctitle __P((const char *_fmt, ...)) __printf0like(1, 2);
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pid_t setsid __P((void));
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int setuid __P((uid_t));
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unsigned int sleep __P((unsigned int));
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@ -22,8 +22,8 @@ SRCS+= _rand48.c _spinlock_stub.c alarm.c arc4random.c assert.c \
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pause.c popen.c psignal.c pwcache.c raise.c readdir.c rewinddir.c \
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posixshm.c \
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scandir.c seed48.c seekdir.c semconfig.c semctl.c semget.c semop.c \
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setdomainname.c sethostname.c setjmperr.c setmode.c shmat.c \
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shmctl.c shmdt.c shmget.c siginterrupt.c siglist.c signal.c \
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setdomainname.c sethostname.c setjmperr.c setmode.c setproctitle.c \
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shmat.c shmctl.c shmdt.c shmget.c siginterrupt.c siglist.c signal.c \
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sigsetops.c sleep.c srand48.c stringlist.c strtofflags.c \
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sysconf.c sysctl.c sysctlbyname.c \
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syslog.c telldir.c termios.c time.c times.c timezone.c ttyname.c \
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@ -49,7 +49,7 @@ MAN3+= alarm.3 arc4random.3 clock.3 \
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ldexp.3 lockf.3 modf.3 msgctl.3 msgget.3 msgrcv.3 msgsnd.3 \
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nice.3 nlist.3 pause.3 popen.3 psignal.3 pwcache.3 \
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raise.3 rand48.3 rfork_thread.3 \
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scandir.3 setjmp.3 setmode.3 shm_open.3 \
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scandir.3 setjmp.3 setmode.3 setproctitle.3 shm_open.3 \
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siginterrupt.3 signal.3 sigsetops.3 sleep.3 stringlist.3 \
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strtofflags.3 sysconf.3 sysctl.3 syslog.3 tcgetpgrp.3 \
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tcsendbreak.3 tcsetattr.3 tcsetpgrp.3 time.3 times.3 timezone.3 \
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@ -6,14 +6,14 @@ SHLIB_MAJOR= 3
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SHLIB_MINOR= 0
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CFLAGS+=-Wall -DLIBC_SCCS -I${.CURDIR} -I${.CURDIR}/../../sys
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CFLAGS+=-DINET6
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SRCS= login.c login_tty.c logout.c logwtmp.c pty.c setproctitle.c \
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SRCS= login.c login_tty.c logout.c logwtmp.c pty.c \
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login_cap.c login_class.c login_auth.c login_times.c login_ok.c \
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login_crypt.c _secure_path.c uucplock.c property.c auth.c \
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realhostname.c fparseln.c
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INCS= libutil.h login_cap.h
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MAN3+= login.3 login_auth.3 login_tty.3 logout.3 logwtmp.3 pty.3 \
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setproctitle.3 login_cap.3 login_class.3 login_times.3 login_ok.3 \
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login_cap.3 login_class.3 login_times.3 login_ok.3 \
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_secure_path.3 uucplock.3 property.3 auth.3 realhostname.3 \
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realhostname_sa.3 trimdomain.3 fparseln.3
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MAN5+= login.conf.5 auth.conf.5
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@ -45,7 +45,6 @@ struct utmp;
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struct in_addr;
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__BEGIN_DECLS
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void setproctitle __P((const char *_fmt, ...)) __printf0like(1, 2);
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void login __P((struct utmp *_ut));
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int login_tty __P((int _fd));
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int logout __P((char *_line));
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@ -1,102 +0,0 @@
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.\" Copyright (c) 1995 Peter Wemm <peter@freebsd.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, is permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice immediately at the beginning of the file, without modification,
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.\" this list of conditions, and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. This work was done expressly for inclusion into FreeBSD. Other use
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.\" is permitted provided this notation is included.
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.\" 4. Absolutely no warranty of function or purpose is made by the author
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.\" Peter Wemm.
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.\" 5. Modifications may be freely made to this file providing the above
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.\" conditions are met.
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.\"
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.\" $FreeBSD$
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.\"
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.\" The following requests are required for all man pages.
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.Dd December 16, 1995
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.Os FreeBSD
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.Dt SETPROCTITLE 3
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.Sh NAME
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.Nm setproctitle
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.Nd set the process title for
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.Xr ps 1
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.Sh LIBRARY
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.Lb libutil
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Fd #include <libutil.h>
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.Ft void
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.Fn setproctitle "const char *fmt" "..."
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.Sh DESCRIPTION
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The
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.Fn setproctitle
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library routine sets the process title that appears on the
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.Xr ps 1
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command.
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.Pp
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The title is set from the executable's name, followed by the
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result of a
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.Xr printf 3
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style expansion of the arguments as specified by the
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.Va fmt
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argument.
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If the
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.Va fmt
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argument begins with a
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.Dq -
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character, the executable's name is skipped.
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.Pp
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If
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.Va fmt
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is NULL, the process title is restored.
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.Sh EXAMPLES
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To set the title on a daemon to indicate its activity:
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.Bd -literal -offset indent
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setproctitle("talking to %s", inet_ntoa(addr));
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.Ed
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.Sh SEE ALSO
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.Xr ps 1 ,
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.Xr w 1 ,
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.Xr kvm 3 ,
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.Xr kvm_getargv 3 ,
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.Xr printf 3
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.Sh STANDARDS
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.Fn setproctitle
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is implicitly non-standard. Other methods of causing the
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.Xr ps 1
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command line to change, including copying over the argv[0] string are
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also implicitly non-portable. It is preferable to use an operating system
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supplied
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.Fn setproctitle
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if present.
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.Pp
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Unfortunately, it is possible that there are other calling conventions
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to other versions of
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.Fn setproctitle ,
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although none have been found by the author as yet. This is believed to be
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the predominant convention.
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.Pp
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It is thought that the implementation is compatible with other systems,
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including
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.Nx
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and
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.Tn BSD/OS .
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.Sh HISTORY
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.Fn setproctitle
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first appeared in
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.Fx 2.2 .
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Other operating systems have
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similar functions.
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.Sh AUTHORS
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.An Peter Wemm Aq peter@FreeBSD.org
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stole the idea from the
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.Sy "Sendmail 8.7.3"
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source code by
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.An Eric Allman Aq eric@sendmail.org .
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@ -1,147 +0,0 @@
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/*
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* Copyright (c) 1995 Peter Wemm <peter@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Absolutely no warranty of function or purpose is made by the author
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* Peter Wemm.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/sysctl.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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/*
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* Older FreeBSD 2.0, 2.1 and 2.2 had different ps_strings structures and
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* in different locations.
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* 1: old_ps_strings at the very top of the stack.
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* 2: old_ps_strings at SPARE_USRSPACE below the top of the stack.
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* 3: ps_strings at the very top of the stack.
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* This attempts to support a kernel built in the #2 and #3 era.
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*/
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struct old_ps_strings {
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char *old_ps_argvstr;
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int old_ps_nargvstr;
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char *old_ps_envstr;
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int old_ps_nenvstr;
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};
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#define OLD_PS_STRINGS ((struct old_ps_strings *) \
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(USRSTACK - SPARE_USRSPACE - sizeof(struct old_ps_strings)))
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#include <stdarg.h>
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#define SPT_BUFSIZE 2048 /* from other parts of sendmail */
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extern char * __progname; /* is this defined in a .h anywhere? */
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void
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setproctitle(const char *fmt, ...)
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{
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static struct ps_strings *ps_strings;
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static char buf[SPT_BUFSIZE];
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static char obuf[SPT_BUFSIZE];
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static char **oargv, *kbuf;
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static int oargc = -1;
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static char *nargv[2] = { buf, NULL };
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char **nargvp;
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int nargc;
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va_list ap;
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size_t len;
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unsigned long ul_ps_strings;
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int oid[4];
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va_start(ap, fmt);
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if (fmt) {
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buf[sizeof(buf) - 1] = '\0';
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if (fmt[0] == '-') {
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/* skip program name prefix */
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fmt++;
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len = 0;
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} else {
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/* print program name heading for grep */
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(void) snprintf(buf, sizeof(buf), "%s: ", __progname);
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len = strlen(buf);
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}
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/* print the argument string */
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(void) vsnprintf(buf + len, sizeof(buf) - len, fmt, ap);
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nargvp = nargv;
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nargc = 1;
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kbuf = buf;
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} else if (*obuf != '\0') {
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/* Idea from NetBSD - reset the title on fmt == NULL */
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nargvp = oargv;
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nargc = oargc;
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kbuf = obuf;
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} else
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/* Nothing to restore */
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return;
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va_end(ap);
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/* Set the title into the kernel cached command line */
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oid[0] = CTL_KERN;
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oid[1] = KERN_PROC;
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oid[2] = KERN_PROC_ARGS;
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oid[3] = getpid();
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sysctl(oid, 4, 0, 0, kbuf, strlen(kbuf) + 1);
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if (ps_strings == NULL) {
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len = sizeof(ul_ps_strings);
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if (sysctlbyname("kern.ps_strings", &ul_ps_strings, &len, NULL,
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0) == -1)
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ul_ps_strings = PS_STRINGS;
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ps_strings = (struct ps_strings *)ul_ps_strings;
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}
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/* PS_STRINGS points to zeroed memory on a style #2 kernel */
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if (ps_strings->ps_argvstr) {
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/* style #3 */
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if (oargc == -1) {
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/* Record our original args */
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oargc = ps_strings->ps_nargvstr;
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oargv = ps_strings->ps_argvstr;
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for (nargc = len = 0; nargc < oargc; nargc++) {
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snprintf(obuf + len, sizeof(obuf) - len, "%s%s",
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len ? " " : "", oargv[nargc]);
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if (len)
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len++;
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len += strlen(oargv[nargc]);
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if (len >= sizeof(obuf))
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break;
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}
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}
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ps_strings->ps_nargvstr = nargc;
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ps_strings->ps_argvstr = nargvp;
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} else {
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/* style #2 - we can only restore our first arg :-( */
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if (*obuf == '\0')
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strncpy(obuf, OLD_PS_STRINGS->old_ps_argvstr,
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sizeof(obuf) - 1);
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OLD_PS_STRINGS->old_ps_nargvstr = 1;
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OLD_PS_STRINGS->old_ps_argvstr = nargvp[0];
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}
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}
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@ -46,7 +46,7 @@
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#define BSD4_3 1
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#define BSD4_4 1
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#undef __FreeBSD_version
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#define __FreeBSD_version 500011 /* Master, propagated to newvers */
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#define __FreeBSD_version 500012 /* Master, propagated to newvers */
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#ifndef NULL
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#define NULL 0
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