libexplain  1.4.D001
Functions
libexplain/buffer/errno/open.c File Reference
#include <libexplain/ac/assert.h>
#include <libexplain/ac/errno.h>
#include <libexplain/ac/fcntl.h>
#include <libexplain/ac/sys/stat.h>
#include <libexplain/ac/sys/sysmacros.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/buffer/dac.h>
#include <libexplain/buffer/eexist.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/einval.h>
#include <libexplain/buffer/eisdir.h>
#include <libexplain/buffer/eloop.h>
#include <libexplain/buffer/emfile.h>
#include <libexplain/buffer/enametoolong.h>
#include <libexplain/buffer/enfile.h>
#include <libexplain/buffer/enoent.h>
#include <libexplain/buffer/enomedium.h>
#include <libexplain/buffer/enomem.h>
#include <libexplain/buffer/enospc.h>
#include <libexplain/buffer/enotdir.h>
#include <libexplain/buffer/erofs.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/open.h>
#include <libexplain/buffer/errno/path_resolution.h>
#include <libexplain/buffer/etxtbsy.h>
#include <libexplain/buffer/file_type.h>
#include <libexplain/buffer/gettext.h>
#include <libexplain/buffer/mount_point.h>
#include <libexplain/buffer/open_flags.h>
#include <libexplain/buffer/path_to_pid.h>
#include <libexplain/buffer/permission_mode.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/buffer/pretty_size.h>
#include <libexplain/buffer/uid.h>
#include <libexplain/capability.h>
#include <libexplain/explanation.h>
#include <libexplain/option.h>
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions

static void explain_buffer_errno_open_system_call (explain_string_buffer_t *sb, int errnum, const char *pathname, int flags, int mode)
static void you_can_not_open_a_socket (explain_string_buffer_t *sb)
static void no_corresponding_device (explain_string_buffer_t *sb, const struct stat *st)
static int is_device_file (const struct stat *st)
void explain_buffer_errno_open_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, const char *pathname, int flags, int mode)
void explain_buffer_errno_open (explain_string_buffer_t *sb, int errnum, const char *pathname, int flags, int mode)

Function Documentation

void explain_buffer_errno_open ( explain_string_buffer_t sb,
int  errnum,
const char *  pathname,
int  flags,
int  mode 
)

The explain_buffer_errno_open function is used to obtain an explanation of an error returned by the open(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 in which the message is being constructed. If a safe buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtain 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.
pathnameThe original pathname, exactly has passed to the open(2) system call.
flagsThe original flags, exactly has passed to the open(2) system call.
modeThe original mode, exactly has passed to the open(2) system call (or zero if the original call didn't need a mode argument).

Definition at line 732 of file open.c.

void explain_buffer_errno_open_explanation ( explain_string_buffer_t sb,
int  errnum,
const char *  syscall_name,
const char *  pathname,
int  flags,
int  mode 
)

The explain_buffer_errno_open_because function is used to obtain an explanation of an error returned by the open(2) system call. It does not include the initial text of the function call, only the "because..." part.

Parameters:
sbThe string buffer in which the message is being constructed. If a safe buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtain 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.
pathnameThe original pathname, exactly has passed to the open(2) system call.
flagsThe original flags, exactly has passed to the open(2) system call.
modeThe original mode, exactly has passed to the open(2) system call (or zero if the original call didn't need a mode argument).

Definition at line 163 of file open.c.

static void explain_buffer_errno_open_system_call ( explain_string_buffer_t sb,
int  errnum,
const char *  pathname,
int  flags,
int  mode 
) [static]

Definition at line 62 of file open.c.

static int is_device_file ( const struct stat *  st) [static]

Definition at line 141 of file open.c.

static void no_corresponding_device ( explain_string_buffer_t sb,
const struct stat *  st 
) [static]

Definition at line 101 of file open.c.

static void you_can_not_open_a_socket ( explain_string_buffer_t sb) [static]

Definition at line 82 of file open.c.