libexplain/buffer/errno/fileno.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdio.h>
#include <libexplain/buffer/ebadf.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/fileno.h>
#include <libexplain/buffer/stream.h>
#include <libexplain/explanation.h>

Go to the source code of this file.

Functions
static void	explain_buffer_errno_fileno_system_call (explain_string_buffer_t *sb, int errnum, FILE *fp)
static void	explain_buffer_errno_fileno_explanation (explain_string_buffer_t *sb, int errnum, FILE *fp)
void	explain_buffer_errno_fileno (explain_string_buffer_t *sb, int errnum, FILE *fp)

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Function Documentation

void explain_buffer_errno_fileno	(	explain_string_buffer_t *	sb,
		int	errnum,
		FILE *	fp
	)

The explain_buffer_errno_fileno function is used to obtain an explanation of an error returned by the fileno(3) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:

sb	The string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnum	The error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
fp	The original fp, exactly as passed to the fileno(3) system call.

Definition at line 63 of file fileno.c.

static void explain_buffer_errno_fileno_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		FILE *	fp
	)		[static]

Definition at line 41 of file fileno.c.

static void explain_buffer_errno_fileno_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		FILE *	fp
	)		[static]

Definition at line 30 of file fileno.c.