#include <libexplain/ac/stdarg.h>
#include <libexplain/ac/stdlib.h>
#include <libexplain/ac/string.h>
#include <libexplain/buffer/errno/execlp.h>
#include <libexplain/buffer/errno/execvp.h>
#include <libexplain/buffer/pathname.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/explanation.h>
#include <libexplain/is_efault.h>
#include <libexplain/sizeof.h>

Functions
static void	explain_buffer_errno_execlp_system_call (explain_string_buffer_t sb, int errnum, const char pathname, int argc, const char **argv)
void	explain_buffer_errno_execlp_explanation (explain_string_buffer_t sb, int errnum, const char syscall_name, const char pathname, int argc, const char *argv)
void	explain_buffer_errno_execlpv (explain_string_buffer_t sb, int errnum, const char pathname, int argc, const char **argv)
void	explain_buffer_errno_execlp (explain_string_buffer_t sb, int errnum, const char pathname, const char *arg, va_list ap)

Function Documentation

void explain_buffer_errno_execlp	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	pathname,
		const char *	arg,
		va_list	ap
	)

The explain_buffer_errno_execlp function is used to obtain an explanation of an error returned by the execlp(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 pathname, exactly as to be passed to the execlp(3) system call.
arg	The first argument in the argument list, exactly as to be passed to the execvp(3) system call.
ap	The rest of the arguments, terminated by a NULL pointer.

Definition at line 119 of file execlp.c.

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

The explain_buffer_errno_execlp_explanation function is used to obtain the explanation (the part after "because") of an error returned by the execlp(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 pathname, exactly as to be passed to the execlp(3) system call.
argc	The number of command line arguments. assert(argc >= 1);
argv	The command line arguments. assert(argv[argc] == NULL);

Definition at line 85 of file execlp.c.

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

Definition at line 33 of file execlp.c.

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

Definition at line 104 of file execlp.c.

Functions

Function Documentation