centos man page for vsprintf

VSPRINTF(9)						     Basic C Library Functions						       VSPRINTF(9)

NAME
       vsprintf - Format a string and place it in a buffer

SYNOPSIS
       int vsprintf(char * buf, const char * fmt, va_list args);

ARGUMENTS
       buf
	   The buffer to place the result into

       fmt
	   The format string to use

       args
	   Arguments for the format string

DESCRIPTION
       The function returns the number of characters written into buf. Use vsnprintf or vscnprintf in order to avoid buffer overflows.

       If you're not already dealing with a va_list consider using sprintf.

       See the vsnprintf documentation for format string extensions over C99.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							       VSPRINTF(9)