'\" t
.\"     Title: snprintf
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: April 2019
.\"    Manual: Basic C Library Functions
.\"    Source: Kernel Hackers Manual 4.9.168
.\"  Language: English
.\"
.TH "SNPRINTF" "9" "April 2019" "Kernel Hackers Manual 4\&.9\&." "Basic C Library Functions"
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.SH "NAME"
snprintf \- Format a string and place it in a buffer
.SH "SYNOPSIS"
.HP \w'int\ snprintf('u
.BI "int snprintf(char\ *\ " "buf" ", size_t\ " "size" ", const\ char\ *\ " "fmt" ", " "\&.\&.\&." ");"
.SH "ARGUMENTS"
.PP
\fIbuf\fR
.RS 4
The buffer to place the result into
.RE
.PP
\fIsize\fR
.RS 4
The size of the buffer, including the trailing null space
.RE
.PP
\fIfmt\fR
.RS 4
The format string to use
.RE
.PP
\fI\&.\&.\&.\fR
.RS 4
Arguments for the format string
.RE
.SH "DESCRIPTION"
.PP
The return value is the number of characters which would be generated for the given input, excluding the trailing null, as per ISO C99\&. If the return is greater than or equal to
\fIsize\fR, the resulting string is truncated\&.
.PP
See the
\fBvsnprintf\fR
documentation for format string extensions over C99\&.
.SH "COPYRIGHT"
.br