NAME

xt_dprintf() - Print formatted output to a low-level file descriptor

LIBRARY

#include <xtend/file.h>
-lxtend

SYNOPSIS

int     xt_dprintf(int fd, const char * restrict format, ...)

ARGUMENTS

fd      File descriptor to which items are written
format  printf-style format string

DESCRIPTION

The dprintf() function, which takes a file descriptor rather than a FILE stream pointer, is provided by many systems including BSDs and Linux, but not by all. Use of xt_dprintf() from libxtend will ensure portability of code.

RETURN VALUES

The number of characters written

EXAMPLES

int     fd;
if ( (fd = open(filename, O_WRONLY|O_CREAT)) != -1 )
{


    xt_dprintf(fd, "fd = %dn", fd);


    ...


    close(fd);
}