#include <libexplain/buffer/errno/vfprintf.h>
#include <libexplain/buffer/errno/vprintf.h>
#include <libexplain/buffer/pathname.h>
#include <libexplain/buffer/va_list.h>
#include <libexplain/explanation.h>

Functions
static void	explain_buffer_errno_vprintf_system_call (explain_string_buffer_t sb, int errnum, const char format, va_list ap)
void	explain_buffer_errno_vprintf_explanation (explain_string_buffer_t sb, int errnum, const char syscall_name, const char *format, va_list ap)
void	explain_buffer_errno_vprintf (explain_string_buffer_t sb, int errnum, const char format, va_list ap)

Function Documentation

void explain_buffer_errno_vprintf	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	format,
		va_list	ap
	)

The explain_buffer_errno_vprintf function is used to obtain an explanation of an error returned by the vprintf(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.
format	The original format, exactly as passed to the vprintf(3) system call.
ap	The original ap, exactly as passed to the vprintf(3) system call.

Definition at line 59 of file vprintf.c.

void explain_buffer_errno_vprintf_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		const char *	format,
		va_list	ap
	)

The explain_buffer_errno_vprintf_explanation function is used to obtain the explanation (the part after "because") of an error returned by the vprintf(3) system call (and similar).

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.
syscall_name	The name of the offending system call.
format	The original format, exactly as passed to the vprintf(3) system call.
ap	The original ap, exactly as passed to the vprintf(3) system call.

Definition at line 40 of file vprintf.c.

static void explain_buffer_errno_vprintf_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	format,
		va_list	ap
	)		`[static]`

Definition at line 27 of file vprintf.c.

Functions

Function Documentation