libexplain/buffer/errno/dup.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/buffer/ebadf.h>
#include <libexplain/buffer/eintr.h>
#include <libexplain/buffer/emfile.h>
#include <libexplain/buffer/errno/dup.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/fildes_to_pathname.h>
#include <libexplain/explanation.h>

Go to the source code of this file.

Functions
static void	explain_buffer_errno_dup_system_call (explain_string_buffer_t *sb, int errnum, int fildes)
static void	explain_buffer_errno_dup_explanation (explain_string_buffer_t *sb, int errnum, int fildes)
void	explain_buffer_errno_dup (explain_string_buffer_t *sb, int errnum, int fildes)

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Function Documentation

void explain_buffer_errno_dup	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes
	)

The explain_buffer_errno_dup function is used to obtain an explanation of an error returned by the dup(2) 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 safe 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.
fildes	The original fildes, exactly as passed to the dup(2) system call.

Definition at line 72 of file dup.c.

static void explain_buffer_errno_dup_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes
	)		[static]

Definition at line 42 of file dup.c.

static void explain_buffer_errno_dup_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes
	)		[static]

Definition at line 31 of file dup.c.