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-rw-r--r--android/utils/path.c430
1 files changed, 0 insertions, 430 deletions
diff --git a/android/utils/path.c b/android/utils/path.c
deleted file mode 100644
index 9dd238e..0000000
--- a/android/utils/path.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/* Copyright (C) 2007-2009 The Android Open Source Project
-**
-** This software is licensed under the terms of the GNU General Public
-** License version 2, as published by the Free Software Foundation, and
-** may be copied, distributed, and modified under those terms.
-**
-** This program is distributed in the hope that it will be useful,
-** but WITHOUT ANY WARRANTY; without even the implied warranty of
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-** GNU General Public License for more details.
-*/
-#include "android/utils/path.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#ifdef _WIN32
-#include <process.h>
-#include <shlobj.h>
-#include <tlhelp32.h>
-#include <io.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdint.h>
-#include <limits.h>
-#include <winbase.h>
-#else
-#include <unistd.h>
-#include <sys/stat.h>
-#include <time.h>
-#include <signal.h>
-#endif
-
-#define D(...) ((void)0)
-
-#ifndef CHECKED
-# ifdef _WIN32
-# define CHECKED(ret, call) (ret) = (call)
-# else
-# define CHECKED(ret, call) do { (ret) = (call); } while ((ret) < 0 && errno == EINTR)
-# endif
-#endif
-
-/** PATH HANDLING ROUTINES
- **
- ** path_parent() can be used to return the n-level parent of a given directory
- ** this understands . and .. when encountered in the input path
- **/
-
-static __inline__ int
-ispathsep(int c)
-{
-#ifdef _WIN32
- return (c == '/' || c == '\\');
-#else
- return (c == '/');
-#endif
-}
-
-char*
-path_parent( const char* path, int levels )
-{
- const char* end = path + strlen(path);
- char* result;
-
- while (levels > 0) {
- const char* base;
-
- /* trim any trailing path separator */
- while (end > path && ispathsep(end[-1]))
- end--;
-
- base = end;
- while (base > path && !ispathsep(base[-1]))
- base--;
-
- if (base <= path) /* we can't go that far */
- return NULL;
-
- if (end == base+1 && base[0] == '.')
- goto Next;
-
- if (end == base+2 && base[0] == '.' && base[1] == '.') {
- levels += 1;
- goto Next;
- }
-
- levels -= 1;
-
- Next:
- end = base - 1;
- }
- result = malloc( end-path+1 );
- if (result != NULL) {
- memcpy( result, path, end-path );
- result[end-path] = 0;
- }
- return result;
-}
-
-
-/** MISC FILE AND DIRECTORY HANDLING
- **/
-
-ABool
-path_exists( const char* path )
-{
- int ret;
- CHECKED(ret, access(path, F_OK));
- return (ret == 0) || (errno != ENOENT);
-}
-
-/* checks that a path points to a regular file */
-ABool
-path_is_regular( const char* path )
-{
- int ret;
- struct stat st;
-
- CHECKED(ret, stat(path, &st));
- if (ret < 0)
- return 0;
-
- return S_ISREG(st.st_mode);
-}
-
-
-/* checks that a path points to a directory */
-ABool
-path_is_dir( const char* path )
-{
- int ret;
- struct stat st;
-
- CHECKED(ret, stat(path, &st));
- if (ret < 0)
- return 0;
-
- return S_ISDIR(st.st_mode);
-}
-
-/* checks that one can read/write a given (regular) file */
-ABool
-path_can_read( const char* path )
-{
- int ret;
- CHECKED(ret, access(path, R_OK));
- return (ret == 0);
-}
-
-ABool
-path_can_write( const char* path )
-{
- int ret;
- CHECKED(ret, access(path, R_OK));
- return (ret == 0);
-}
-
-/* try to make a directory. returns 0 on success, -1 on failure
- * (error code in errno) */
-APosixStatus
-path_mkdir( const char* path, int mode )
-{
-#ifdef _WIN32
- (void)mode;
- return _mkdir(path);
-#else
- int ret;
- CHECKED(ret, mkdir(path, mode));
- return ret;
-#endif
-}
-
-static APosixStatus
-path_mkdir_recursive( char* path, unsigned len, int mode )
-{
- char old_c;
- int ret;
- unsigned len2;
-
- /* get rid of trailing separators */
- while (len > 0 && ispathsep(path[len-1]))
- len -= 1;
-
- if (len == 0) {
- errno = ENOENT;
- return -1;
- }
-
- /* check that the parent exists, 'len2' is the length of
- * the parent part of the path */
- len2 = len-1;
- while (len2 > 0 && !ispathsep(path[len2-1]))
- len2 -= 1;
-
- if (len2 > 0) {
- old_c = path[len2];
- path[len2] = 0;
- ret = 0;
- if ( !path_exists(path) ) {
- /* the parent doesn't exist, so try to create it */
- ret = path_mkdir_recursive( path, len2, mode );
- }
- path[len2] = old_c;
-
- if (ret < 0)
- return ret;
- }
-
- /* at this point, we now the parent exists */
- old_c = path[len];
- path[len] = 0;
- ret = path_mkdir( path, mode );
- path[len] = old_c;
-
- return ret;
-}
-
-/* ensure that a given directory exists, create it if not,
- 0 on success, -1 on failure (error code in errno) */
-APosixStatus
-path_mkdir_if_needed( const char* path, int mode )
-{
- int ret = 0;
-
- if (!path_exists(path)) {
- ret = path_mkdir(path, mode);
-
- if (ret < 0 && errno == ENOENT) {
- char temp[MAX_PATH];
- unsigned len = (unsigned)strlen(path);
-
- if (len > sizeof(temp)-1) {
- errno = EINVAL;
- return -1;
- }
- memcpy( temp, path, len );
- temp[len] = 0;
-
- return path_mkdir_recursive(temp, len, mode);
- }
- }
- return ret;
-}
-
-/* return the size of a given file in '*psize'. returns 0 on
- * success, -1 on failure (error code in errno) */
-APosixStatus
-path_get_size( const char* path, uint64_t *psize )
-{
-#ifdef _WIN32
- /* avoid _stat64 which is only defined in MSVCRT.DLL, not CRTDLL.DLL */
- /* do not use OpenFile() because it has strange search behaviour that could */
- /* result in getting the size of a different file */
- LARGE_INTEGER size;
- HANDLE file = CreateFile( /* lpFilename */ path,
- /* dwDesiredAccess */ GENERIC_READ,
- /* dwSharedMode */ FILE_SHARE_READ|FILE_SHARE_WRITE,
- /* lpSecurityAttributes */ NULL,
- /* dwCreationDisposition */ OPEN_EXISTING,
- /* dwFlagsAndAttributes */ 0,
- /* hTemplateFile */ NULL );
- if (file == INVALID_HANDLE_VALUE) {
- /* ok, just to play fair */
- errno = ENOENT;
- return -1;
- }
- if (!GetFileSizeEx(file, &size)) {
- /* maybe we tried to get the size of a pipe or something like that ? */
- *psize = 0;
- }
- else {
- *psize = (uint64_t) size.QuadPart;
- }
- CloseHandle(file);
- return 0;
-#else
- int ret;
- struct stat st;
-
- CHECKED(ret, stat(path, &st));
- if (ret == 0) {
- *psize = (uint64_t) st.st_size;
- }
- return ret;
-#endif
-}
-
-
-/** OTHER FILE UTILITIES
- **
- ** path_empty_file() creates an empty file at a given path location.
- ** if the file already exists, it is truncated without warning
- **
- ** path_copy_file() copies one file into another.
- **
- ** both functions return 0 on success, and -1 on error
- **/
-
-APosixStatus
-path_empty_file( const char* path )
-{
-#ifdef _WIN32
- int fd = _creat( path, S_IWRITE );
-#else
- /* on Unix, only allow the owner to read/write, since the file *
- * may contain some personal data we don't want to see exposed */
- int fd = creat(path, S_IRUSR | S_IWUSR);
-#endif
- if (fd >= 0) {
- close(fd);
- return 0;
- }
- return -1;
-}
-
-APosixStatus
-path_copy_file( const char* dest, const char* source )
-{
- int fd, fs, result = -1;
-
- /* if the destination doesn't exist, create it */
- if ( access(source, F_OK) < 0 ||
- path_empty_file(dest) < 0) {
- return -1;
- }
-
-#ifdef _WIN32
- fd = _open(dest, _O_RDWR | _O_BINARY);
- fs = _open(source, _O_RDONLY | _O_BINARY);
-#else
- fd = creat(dest, S_IRUSR | S_IWUSR);
- fs = open(source, S_IREAD);
-#endif
- if (fs >= 0 && fd >= 0) {
- char buf[4096];
- ssize_t total = 0;
- ssize_t n;
- result = 0; /* success */
- while ((n = read(fs, buf, 4096)) > 0) {
- if (write(fd, buf, n) != n) {
- /* write failed. Make it return -1 so that an
- * empty file be created. */
- D("Failed to copy '%s' to '%s': %s (%d)",
- source, dest, strerror(errno), errno);
- result = -1;
- break;
- }
- total += n;
- }
- }
-
- if (fs >= 0) {
- close(fs);
- }
- if (fd >= 0) {
- close(fd);
- }
- return result;
-}
-
-
-APosixStatus
-path_delete_file( const char* path )
-{
-#ifdef _WIN32
- int ret = _unlink( path );
- if (ret == -1 && errno == EACCES) {
- /* a first call to _unlink will fail if the file is set read-only */
- /* we can however try to change its mode first and call unlink */
- /* again... */
- ret = _chmod( path, _S_IREAD | _S_IWRITE );
- if (ret == 0)
- ret = _unlink( path );
- }
- return ret;
-#else
- return unlink(path);
-#endif
-}
-
-
-void*
-path_load_file(const char *fn, size_t *pSize)
-{
- char* data;
- int sz;
- int fd;
-
- if (pSize)
- *pSize = 0;
-
- data = NULL;
-
- fd = open(fn, O_BINARY | O_RDONLY);
- if(fd < 0) return NULL;
-
- do {
- sz = lseek(fd, 0, SEEK_END);
- if(sz < 0) break;
-
- if (pSize)
- *pSize = (size_t) sz;
-
- if (lseek(fd, 0, SEEK_SET) != 0)
- break;
-
- data = (char*) malloc(sz + 1);
- if(data == NULL) break;
-
- if (read(fd, data, sz) != sz)
- break;
-
- close(fd);
- data[sz] = 0;
-
- return data;
- } while (0);
-
- close(fd);
-
- if(data != NULL)
- free(data);
-
- return NULL;
-}
-
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