diff options
Diffstat (limited to 'StdLib/PosixLib/Gen/access.c')
| -rw-r--r-- | StdLib/PosixLib/Gen/access.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/StdLib/PosixLib/Gen/access.c b/StdLib/PosixLib/Gen/access.c deleted file mode 100644 index 3031e4f942..0000000000 --- a/StdLib/PosixLib/Gen/access.c +++ /dev/null @@ -1,118 +0,0 @@ -/** @file
- Implementation of the Posix access() function.
-
- Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available under
- the terms and conditions of the BSD License that accompanies this distribution.
- The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
-#include <LibConfig.h>
-#include <sys/EfiCdefs.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/syslimits.h>
-
-/** Save some typing later on. */
-#define GOOD_MODE (F_OK | X_OK | W_OK | R_OK)
-
-/** Determine accessibility of a file.
- The access() function checks the file, named by the pathname pointed to by
- the Path argument, for accessibility according to the bit pattern contained
- in Mode.
-
- The value of Mode is either the bitwise-inclusive OR of the access
- permissions to be checked (R_OK, W_OK, X_OK) or the existence test (F_OK).
-
- If Path ends in '/' or '\\', the target must be a directory, otherwise it doesn't matter.
- A file is executable if it is NOT a directory and it ends in ".efi".
-
- @param[in] Path Path or name of the file to be checked.
- @param[in] Mode Access permissions to check for.
-
- @retval 0 Successful completion.
- @retval -1 File is not accessible with the given Mode. The error condition
- is indicated by errno. Values of errno specific to the access
- function include: EACCES, ENOENT, ENOTDIR, ENAMETOOLONG
-**/
-int
-access(
- const char *Path,
- int Mode
- )
-{
- struct stat FileStat;
- int retval = -1;
- size_t PLength;
- uint32_t WantDir;
- uint32_t DirMatch;
-
- if((Path == NULL) || ((Mode & ~GOOD_MODE) != 0)) {
- errno = EINVAL;
- }
- else {
- PLength = strlen(Path);
- if(PLength > PATH_MAX) {
- errno = ENAMETOOLONG;
- }
- else {
- retval = stat(Path, &FileStat);
- if(retval == 0) {
- /* Path exists. FileStat now holds valid information. */
- WantDir = isDirSep(Path[PLength - 1]); // Does Path end in '/' or '\\' ?
- DirMatch = (! WantDir && (! S_ISDIR(FileStat.st_mode)));
-
- /* Test each permission individually. */
- do {
- if(Mode == F_OK) { /* Existence test. */
- if(DirMatch) { /* This is a directory or file as desired. */
- retval = 0;
- }
- else {
- /* Indicate why we failed the test. */
- errno = (WantDir) ? ENOTDIR : EISDIR;
- }
- break; /* F_OK does not combine with any other tests. */
- }
- if(Mode & R_OK) {
- if((FileStat.st_mode & READ_PERMS) == 0) {
- /* No read permissions.
- For UEFI, everything should have READ permissions.
- */
- errno = EDOOFUS; /* Programming Error. */
- break;
- }
- }
- if(Mode & W_OK) {
- if((FileStat.st_mode & WRITE_PERMS) == 0) {
- /* No write permissions. */
- errno = EACCES; /* Writing is not OK. */
- break;
- }
- }
- if(Mode & X_OK) {
- /* In EDK II, executable files end in ".efi" */
- if(strcmp(&Path[PLength-4], ".efi") != 0) {
- /* File is not an executable. */
- errno = EACCES;
- break;
- }
- }
- retval = 0;
- } while(FALSE);
- }
- else {
- /* File or path does not exist. */
- errno = ENOENT;
- }
- }
- }
- return retval;
-}
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