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stdio/fputs.3 /dev/null Libc-498
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+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)fputs.3	8.1 (Berkeley) 6/4/93
+.\" $FreeBSD: src/lib/libc/stdio/fputs.3,v 1.11 2002/12/19 09:40:24 ru Exp $
+.\"
+.Dd June 4, 1993
+.Dt FPUTS 3
+.Os
+.Sh NAME
+.Nm fputs ,
+.Nm puts
+.Nd output a line to a stream
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In stdio.h
+.Ft int
+.Fo fputs
+.Fa "const char *restrict s"
+.Fa "FILE *restrict stream"
+.Fc
+.Ft int
+.Fo puts
+.Fa "const char *s"
+.Fc
+.Sh DESCRIPTION
+The function
+.Fn fputs
+writes the string pointed to by
+.Fa s
+to the stream pointed to by
+.Fa stream .
+.\" The terminating
+.\" .Dv NUL
+.\" character is not written.
+.Pp
+The function
+.Fn puts
+writes the string
+.Fa s ,
+and a terminating newline character,
+to the stream
+.Dv stdout .
+.Sh RETURN VALUES
+The
+.Fn fputs
+function
+returns 0 on success and
+.Dv EOF
+on error;
+.Fn puts
+returns a nonnegative integer on success and
+.Dv EOF
+on error.
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EBADF
+The
+.Fa stream
+argument
+is not a writable stream.
+.El
+.Pp
+The functions
+.Fn fputs
+and
+.Fn puts
+may also fail and set
+.Va errno
+for any of the errors specified for the routines
+.Xr write 2 .
+.Sh COMPATIBILITY
+.Fn fputs
+now returns a non-negative number (as opposed to 0)
+on successful completion.
+As a result, many tests (e.g., "fputs() == 0", "fputs() != 0")
+do not give the desired result.
+Use "fputs() != EOF" or "fputs() == EOF"
+to determine success or failure.
+.Sh SEE ALSO
+.Xr ferror 3 ,
+.Xr fputws 3 ,
+.Xr putc 3 ,
+.Xr stdio 3
+.Sh STANDARDS
+The functions
+.Fn fputs
+and
+.Fn puts
+conform to
+.St -isoC .
+While not mentioned in the standard, both
+.Fn fputs
+and
+.Fn puts
+print
+.Ql (null)
+if
+.Fa str
+is
+.Dv NULL .