'\" t
.\"     Title: vsprintf
.\"    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 "VSPRINTF" "9" "April 2019" "Kernel Hackers Manual 4\&.9\&." "Basic C Library Functions"
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.SH "NAME"
vsprintf \- Format a string and place it in a buffer
.SH "SYNOPSIS"
.HP \w'int\ vsprintf('u
.BI "int vsprintf(char\ *\ " "buf" ", const\ char\ *\ " "fmt" ", va_list\ " "args" ");"
.SH "ARGUMENTS"
.PP
\fIbuf\fR
.RS 4
The buffer to place the result into
.RE
.PP
\fIfmt\fR
.RS 4
The format string to use
.RE
.PP
\fIargs\fR
.RS 4
Arguments for the format string
.RE
.SH "DESCRIPTION"
.PP
The function returns the number of characters written into
\fIbuf\fR\&. Use
\fBvsnprintf\fR
or
\fBvscnprintf\fR
in order to avoid buffer overflows\&.
.PP
If you\*(Aqre not already dealing with a va_list consider using
\fBsprintf\fR\&.
.PP
See the
\fBvsnprintf\fR
documentation for format string extensions over C99\&.
.SH "COPYRIGHT"
.br