Man page - libmaketmpfilefd(3)

Packages contains this manual

Package:  libnetpbm-dev
apt-get install libnetpbm-dev

Manuals in package:
• libnetpbm_draw(3)
• libnetpbm(3)
• libtmpfile(3)
• libpbm(3)
• libsystem(3)
• libtmpfilefd(3)
• libmaketmpfilefd(3)
• libnetpbm_font(3)
• libmaketmpfile(3)
• libpnm(3)
• libnetpbm_ug(3)
• libnetpbm_image(3)
• libppm(3)
• libpgm(3)
• libpm(3)
Documentations in package:
• libnetpbm-dev

Manual

Netpbm subroutine library: pm_make_tmpfile_fd() function

NAME
SYNOPSIS
EXAMPLE
DESCRIPTION
HISTORY
DOCUMENT SOURCE

---

NAME

pm_make_tmpfile_fd() - create a temporary named file

SYNOPSIS

#include <netpbm/pm.h>

pm_make_tmpfile(int * fdP,
const char ** filenameP);

EXAMPLE

This simple example creates a temporary file, writes "hello world" to it, then writes some search patterns to it, then uses it as input to grep :

#include <netpbm/pm.h>

int fd;
const char * myfilename;

pm_make_tmpfile_fd(&fdP, &myfilename);

write(fd, "ˆaccount:\\s.*\n", 16);
fprintf(fd, "ˆname:\\s.*\n", 13);

close(fd);

asprintfN(&grepCommand, "grep --file=’%s’ /tmp/infile >/tmp/outfile");

system(grepCommand);

strfree(grepCommand);

unlink(myfilename);

strfree(myfilename);

DESCRIPTION

This library function is part of Netpbm (1).

pm_make_tmpfile_fd() is analogous to pm_make_tmpfile() (1). The only difference is that it opens the file as a low level file, as open() would, rather than as a stream, as fopen() would.

If you don’t need to access the file by name, use pm_tmpfile_fd() instead, because it’s cleaner. With pm_tmpfile_fd() , the operating system always deletes the temporary file when your program exits, if the program failed to clean up after itself.

HISTORY

pm_tmpfile() was introduced in Netpbm 10.42 (March 2008).

DOCUMENT SOURCE

This manual page was generated by the Netpbm tool ’makeman’ from HTML source. The master documentation is at

http://netpbm.sourceforge.net/doc/libmaketmpfilefd.html

---