libexplain/buffer/errno/execv.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/ac/sys/stat.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/buffer/caption_name_type.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/errno/execv.h>
#include <libexplain/buffer/errno/execve.h>
#include <libexplain/buffer/pathname.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/explanation.h>
#include <libexplain/have_permission.h>
#include <libexplain/name_max.h>
#include <libexplain/is_efault.h>
#include <libexplain/sizeof.h>

Go to the source code of this file.

Functions
static size_t	count (char *const *p)
static void	explain_buffer_errno_execv_system_call (explain_string_buffer_t *sb, int errnum, const char *pathname, char *const *argv)
void	explain_buffer_errno_execv_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, const char *pathname, char *const *argv)
void	explain_buffer_errno_execv (explain_string_buffer_t *sb, int errnum, const char *pathname, char *const *argv)

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Function Documentation

static size_t count

(

char *const *

p

)

[static]

Definition at line 39 of file execv.c.

void explain_buffer_errno_execv	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	pathname,
		char *const *	argv
	)

The explain_buffer_errno_execv function is used to obtain an explanation of an error returned by the execv(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.
pathname	The original pathname, exactly as passed to the execv(3) system call.
argv	The original argv, exactly as passed to the execv(3) system call.

Definition at line 127 of file execv.c.

void explain_buffer_errno_execv_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		const char *	pathname,
		char *const *	argv
	)

The explain_buffer_errno_execv_explanation function is used to obtain the explanation (the part after "because") of an error returned by the execv(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.
pathname	The original pathname, exactly as passed to the execv(3) system call.
argv	The original argv, exactly as passed to the execv(3) system call.

Definition at line 110 of file execv.c.

static void explain_buffer_errno_execv_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	pathname,
		char *const *	argv
	)		[static]

Definition at line 54 of file execv.c.