libexplain  1.4.D001
Functions
libexplain/buffer/errno/fstatat.c File Reference
#include <libexplain/ac/errno.h>
#include <libexplain/ac/string.h>
#include <libexplain/buffer/ebadf.h>
#include <libexplain/buffer/einval.h>
#include <libexplain/buffer/enomem.h>
#include <libexplain/buffer/enotdir.h>
#include <libexplain/buffer/errno/fstatat.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/lstat.h>
#include <libexplain/buffer/fildes.h>
#include <libexplain/buffer/fstatat_flags.h>
#include <libexplain/buffer/pathname.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/explanation.h>
#include <libexplain/fildes_is_dot.h>
#include <libexplain/fileinfo.h>

Go to the source code of this file.

Functions

static void explain_buffer_errno_fstatat_system_call (explain_string_buffer_t *sb, int errnum, int fildes, const char *pathname, struct stat *data, int flags)
void explain_buffer_errno_fstatat_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int fildes, const char *pathname, struct stat *data, int flags)
void explain_buffer_errno_fstatat (explain_string_buffer_t *sb, int errnum, int fildes, const char *pathname, struct stat *data, int flags)

Function Documentation

void explain_buffer_errno_fstatat ( explain_string_buffer_t sb,
int  errnum,
int  fildes,
const char *  pathname,
struct stat *  data,
int  flags 
)

The explain_buffer_errno_fstatat function is used to obtain an explanation of an error returned by the fstatat(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:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe 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.
fildesThe original fildes, exactly as passed to the fstatat(2) system call.
pathnameThe original pathname, exactly as passed to the fstatat(2) system call.
dataThe original data, exactly as passed to the fstatat(2) system call.
flagsThe original flags, exactly as passed to the fstatat(2) system call.

Definition at line 130 of file fstatat.c.

void explain_buffer_errno_fstatat_explanation ( explain_string_buffer_t sb,
int  errnum,
const char *  syscall_name,
int  fildes,
const char *  pathname,
struct stat *  data,
int  flags 
)

The explain_buffer_errno_fstatat_explanation function is used to obtain the explanation (the part after "because") of an error returned by the fstatat(2) system call (and similar).

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe 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_nameThe name of the offending system call.
fildesThe original fildes, exactly as passed to the fstatat(2) system call.
pathnameThe original pathname, exactly as passed to the fstatat(2) system call.
dataThe original data, exactly as passed to the fstatat(2) system call.
flagsThe original flags, exactly as passed to the fstatat(2) system call.

Definition at line 56 of file fstatat.c.

static void explain_buffer_errno_fstatat_system_call ( explain_string_buffer_t sb,
int  errnum,
int  fildes,
const char *  pathname,
struct stat *  data,
int  flags 
) [static]

Definition at line 39 of file fstatat.c.