libexplain/buffer/errno/getcwd.c File Reference

#include <libexplain/ac/limits.h>
#include <libexplain/ac/errno.h>
#include <libexplain/ac/string.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/enomem.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/getcwd.h>
#include <libexplain/buffer/get_current_directory.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/explanation.h>
#include <libexplain/option.h>

Go to the source code of this file.

Functions
static void	explain_buffer_errno_getcwd_system_call (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)
static void	explain_buffer_errno_getcwd_explanation (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)
void	explain_buffer_errno_getcwd (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)

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Function Documentation

void explain_buffer_errno_getcwd	(	explain_string_buffer_t *	sb,
		int	errnum,
		char *	data,
		size_t	data_size
	)

The explain_buffer_errno_getcwd function is used to obtain an explanation of an error returned by the getcwd(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.
data	The original data, exactly as passed to the getcwd(2) system call.
data_size	The original data_size, exactly as passed to the getcwd(2) system call.

Definition at line 156 of file getcwd.c.

static void explain_buffer_errno_getcwd_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		char *	data,
		size_t	data_size
	)		[static]

Definition at line 45 of file getcwd.c.

static void explain_buffer_errno_getcwd_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		char *	data,
		size_t	data_size
	)		[static]

Definition at line 34 of file getcwd.c.