libexplain/buffer/errno/uname.h File Reference

#include <libexplain/ac/sys/utsname.h>
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions
void	explain_buffer_errno_uname (explain_string_buffer_t *sb, int errnum, struct utsname *data)
void	explain_buffer_errno_uname_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, struct utsname *data)

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Function Documentation

void explain_buffer_errno_uname	(	explain_string_buffer_t *	sb,
		int	errnum,
		struct utsname *	data
	)

The explain_buffer_errno_uname function is used to obtain an explanation of an error returned by the uname(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 uname(2) system call.

Definition at line 58 of file uname.c.

void explain_buffer_errno_uname_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		struct utsname *	data
	)

The explain_buffer_errno_uname_explanation function is used to obtain the explanation (the part after "because") of an error returned by the uname(2) 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.
data	The original data, exactly as passed to the uname(2) system call.

Definition at line 40 of file uname.c.