libexplain/buffer/errno/getdomainname.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/einval.h>
#include <libexplain/buffer/enametoolong.h>
#include <libexplain/buffer/enosys.h>
#include <libexplain/buffer/eperm.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/getdomainname.h>
#include <libexplain/buffer/is_the_null_pointer.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/buffer/size_t.h>
#include <libexplain/buffer/software_error.h>
#include <libexplain/explanation.h>
#include <libexplain/host_name_max.h>

Go to the source code of this file.

Functions
static void	explain_buffer_errno_getdomainname_system_call (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)
static size_t	get_actual_domainname_size (void)
static void	explain_buffer_errno_getdomainname_explanation (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)
void	explain_buffer_errno_getdomainname (explain_string_buffer_t *sb, int errnum, char *data, size_t data_size)

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Function Documentation

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

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

Definition at line 142 of file getdomainname.c.

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

Definition at line 87 of file getdomainname.c.

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

Definition at line 40 of file getdomainname.c.

static size_t get_actual_domainname_size

(

void

)

[static]

Definition at line 53 of file getdomainname.c.