libtmpfilefd (3) - Linux Man Pages
libtmpfilefd: create a temporary unnamed file
#include <netpbm/pm.h> FILE * pm_tmpfile_fd(void);
This simple example creates a temporary file, writes 'hello world' to it, then reads back and prints those contents.
#include <netpbm/pm.h> int fd; fd = pm_tmpfile(); write(fd, 'hello world\n', 17); lseek(fd, 0, SEEK_SET); read(fd, buffer, sizeof(buffer)); fprintf(STDOUT, 'temp file contains '%s'\n', buffer); close(fd);
This library function is part of Netpbm(1)
pm_tmpfile_fd() is analogous to pm_tmpfile()(1) that it opens the file as a low level file, as open() would, rather than as a stream, as fopen() would.
If you need to refer to the temporary file by name, use pm_make_tmpfile_fd() instead.
pm_tmpfile() was introduced in Netpbm 10.42 (March 2008).
Linux man pages generated by: SysTutorials