posix_stdio.h File Reference

<stdio.h>: POSIX extensions to the C stdio library More...

#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/types.h>
#include <zephyr/toolchain.h>

Include dependency graph for posix_stdio.h:

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Macros
#define	P_tmpdir   "/tmp"
	Pathname of the directory for temporary files.

Functions
char *	ctermid (char *s)
	Maximum number of streams that one process can have open at one time.
int	dprintf (int fildes, const char *ZRESTRICT format,...)
	Print formatted output to a file descriptor.
FILE *	fdopen (int fd, const char *mode)
	Associate a stream with an open file descriptor.
int	fileno (FILE *stream)
	Return the file descriptor associated with a stream.
void	flockfile (FILE *file)
	Acquire a stdio stream lock.
FILE *	fmemopen (void *ZRESTRICT buf, size_t size, const char *ZRESTRICT mode)
	Open a memory-backed stream.
int	fseeko (FILE *stream, off_t offset, int whence)
	Reposition a stream to a new offset.
off_t	ftello (FILE *stream)
	Obtain the current file offset of a stream.
int	ftrylockfile (FILE *file)
	Try to acquire a stdio stream lock without blocking.
void	funlockfile (FILE *file)
	Release a stdio stream lock.
int	getc_unlocked (FILE *stream)
	Read a byte from a stream without acquiring the stream lock.
int	getchar_unlocked (void)
	Read a byte from stdin without acquiring the stream lock.
ssize_t	getdelim (char **ZRESTRICT lineptr, size_t *ZRESTRICT n, int delimiter, FILE *ZRESTRICT stream)
	Read a delimited record from a stream.
ssize_t	getline (char **ZRESTRICT lineptr, size_t *ZRESTRICT n, FILE *ZRESTRICT stream)
	Read a line from a stream.
FILE *	open_memstream (char **bufp, size_t *sizep)
	Open a dynamic memory output stream.
int	pclose (FILE *stream)
	Close a pipe stream.
FILE *	popen (const char *command, const char *type)
	Create a pipe to a process.
int	putc_unlocked (int c, FILE *stream)
	Write a byte to a stream without acquiring the stream lock.
int	putchar_unlocked (int c)
	Write a byte to stdout without acquiring the stream lock.
int	renameat (int olddirfd, const char *oldpath, int newdirfd, const char *newpath)
	Rename a file relative to directory file descriptors.
char *	tempnam (const char *dir, const char *pfx)
	Generate a pathname for a temporary file (obsolescent).
int	vdprintf (int fildes, const char *ZRESTRICT format, va_list ap)
	Print formatted output to a file descriptor.

Detailed Description

<stdio.h>: POSIX extensions to the C stdio library

Provides POSIX and XSI extensions to the standard <stdio.h> interface that are not part of ISO C. ISO C types, macros, and function prototypes belong in the C library <stdio.h>; this header documents them only as comments and declares the remaining POSIX interfaces.

See also

POSIX.1-2017 <stdio.h>

Definition in file posix_stdio.h.