2007-10-23 14:40:31 +00:00
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.\" Copyright (C) 2007 Michael Kerrisk <mtk.manpages@gmail.com>
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2004-11-03 13:51:07 +00:00
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.\"
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2007-10-23 14:40:31 +00:00
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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2004-11-03 13:51:07 +00:00
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.\"
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2007-10-23 14:40:31 +00:00
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one.
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2004-11-03 13:51:07 +00:00
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.\"
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2007-10-23 14:40:31 +00:00
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.\" Since the Linux kernel and libraries are constantly changing, this
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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.\" responsibility for errors or omissions, or for damages resulting from
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.\" the use of the information contained herein. The author(s) may not
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.\" have taken the same level of care in the production of this manual,
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.\" which is licensed free of charge, as they might when working
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.\" professionally.
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2004-11-03 13:51:07 +00:00
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.\"
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2007-10-23 14:40:31 +00:00
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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2004-11-03 13:51:07 +00:00
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.\"
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2007-10-23 14:40:31 +00:00
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.\" 2007-10-23 mtk, Nearly a complete rewrite of the earlier page.
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2010-11-11 05:55:48 +00:00
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.TH INTRO 3 2010-11-11 "Linux" "Linux Programmer's Manual"
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.SH NAME
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intro \- Introduction to library functions
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.SH DESCRIPTION
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2007-10-23 14:40:31 +00:00
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Section 3 of the manual describes all library functions excluding the library
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functions (system call wrappers) described in section 2,
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which implement system calls.
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Many of the functions described in the section are part of the
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Standard C Library
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.RI ( libc ).
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Some functions are part of other libraries (e.g.,
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the math library,
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.IR libm ,
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or the real-time library,
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.IR librt )
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in which case the manual page will indicate the linker
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option needed to link against the required library
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(e.g.,
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.I \-lm
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and
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.IR \-lrt ,
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2007-11-15 03:28:33 +00:00
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respectively,
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for the aforementioned libraries).
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In some cases,
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the programmer must define a feature test macro in order to obtain
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the declaration of a function from the header file specified
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in the man page SYNOPSIS section.
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2010-09-10 04:33:31 +00:00
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(Where required, these feature test macros must be defined before including
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.I any
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header files.)
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In such cases, the required macro is described in the man page.
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For further information on feature test macros, see
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.BR feature_test_macros (7).
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.\"
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2006-07-11 10:30:44 +00:00
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.\" There
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.\" are various function groups which can be identified by a letter which
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.\" is appended to the chapter number:
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.\" .IP (3C)
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.\" These functions, the functions from chapter 2 and from chapter 3S are
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.\" contained in the C standard library libc, which will be used by
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.\" .BR cc (1)
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.\" by default.
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.\" .IP (3S)
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.\" These functions are parts of the
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.\" .BR stdio (3)
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.\" library. They are contained in the standard C library libc.
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.\" .IP (3M)
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.\" These functions are contained in the arithmetic library libm. They are
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.\" used by the
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.\" .BR f77 (1)
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.\" FORTRAN compiler by default, but not by the
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.\" .BR cc (1)
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.\" C compiler, which needs the option \fI\-lm\fP.
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.\" .IP (3F)
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.\" These functions are part of the FORTRAN library libF77. There are no
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.\" special compiler flags needed to use these functions.
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.\" .IP (3X)
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.\" Various special libraries. The manual pages documenting their functions
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.\" specify the library names.
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.SH "CONFORMING TO"
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intro.1, time.1, accept.2, bind.2, connect.2, execve.2, flock.2, getdents.2, getpriority.2, getuid.2, intro.2, ioctl.2, mincore.2, mknod.2, personality.2, ptrace.2, read.2, recv.2, select_tut.2, send.2, sendfile.2, shmctl.2, sigaction.2, signal.2, stat.2, times.2, truncate.2, umask.2, wait.2, MB_CUR_MAX.3, MB_LEN_MAX.3, argz_add.3, btowc.3, clearenv.3, clock.3, cmsg.3, end.3, endian.3, errno.3, exit.3, fgetwc.3, fgetws.3, fopen.3, fputwc.3, fputws.3, fseek.3, fwide.3, getfsent.3, getgrnam.3, gethostid.3, getipnodebyname.3, getmntent.3, getpwnam.3, getwchar.3, grantpt.3, iconv.3, iconv_close.3, iconv_open.3, insque.3, intro.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, malloc.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, mkstemp.3, mktemp.3, nl_langinfo.3, openpty.3, posix_openpt.3, printf.3, ptsname.3, putwchar.3, qecvt.3, rcmd.3, readdir.3, rexec.3, rpc.3, setnetgrent.3, shm_open.3, sigpause.3, stdin.3, stpcpy.3, strftime.3, strptime.3, syslog.3, towctrans.3, towlower.3, towupper.3, ttyslot.3, ungetwc.3, unlocked_stdio.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wprintf.3, console_ioctl.4, pts.4, elf.5, filesystems.5, hosts.5, proc.5, ttytype.5, boot.7, capabilities.7, credentials.7, epoll.7, glob.7, koi8-r.7, path_resolution.7, pty.7, signal.7, suffixes.7, time.7, unicode.7, unix.7, uri.7, utf-8.7: global fix: s/Unix/UNIX/
The man pages were rather inconsistent in the use of "Unix"
versus "UNIX". Let's go with the trademark usage.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-10-12 04:45:38 +00:00
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Certain terms and abbreviations are used to indicate UNIX variants
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and standards to which calls in this section conform.
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See
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.BR standards (7).
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.SH NOTES
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2010-02-03 05:14:26 +00:00
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.SS Authors and Copyright Conditions
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2007-11-23 18:50:48 +00:00
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Look at the header of the manual page source for the author(s) and copyright
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2007-04-12 22:42:49 +00:00
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conditions.
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Note that these can be different from page to page!
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2006-04-21 06:49:34 +00:00
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.SH "SEE ALSO"
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2006-07-11 10:30:44 +00:00
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.BR intro (2),
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.BR errno (3),
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.BR capabilities (7),
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.BR credentials (7),
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.BR feature_test_macros (7),
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2009-01-31 11:19:04 +00:00
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.BR libc (7),
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.BR math_error (7),
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.BR environ (7),
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.BR path_resolution (7),
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.BR pthreads (7),
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.BR signal (7),
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2006-08-03 06:13:56 +00:00
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.BR standards (7)
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