libexplain/buffer/errno/setuid.h File Reference

#include <libexplain/ac/unistd.h>
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions
void	explain_buffer_errno_setuid (explain_string_buffer_t *sb, int errnum, uid_t uid)
void	explain_buffer_errno_setuid_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, uid_t uid)

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Function Documentation

void explain_buffer_errno_setuid	(	explain_string_buffer_t *	sb,
		int	errnum,
		uid_t	uid
	)

The explain_buffer_errno_setuid function is used to obtain an explanation of an error returned by the setuid(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.
uid	The original uid, exactly as passed to the setuid(2) system call.

Definition at line 143 of file setuid.c.

void explain_buffer_errno_setuid_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		uid_t	uid
	)

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

Definition at line 45 of file setuid.c.