You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
422 lines
7.2 KiB
422 lines
7.2 KiB
4 months ago
|
/*
|
||
|
|
* Directory routines for CUPS.
|
||
|
|
*
|
||
|
|
* This set of APIs abstracts enumeration of directory entries.
|
||
|
|
*
|
||
|
|
* Copyright 2007-2017 by Apple Inc.
|
||
|
|
* Copyright 1997-2005 by Easy Software Products, all rights reserved.
|
||
|
|
*
|
||
|
|
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Include necessary headers...
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "string-private.h"
|
||
|
|
#include "debug-internal.h"
|
||
|
|
#include "dir.h"
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Windows implementation...
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
# include <windows.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Types and structures...
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct _cups_dir_s /**** Directory data structure ****/
|
||
|
|
{
|
||
|
|
char directory[1024]; /* Directory filename */
|
||
|
|
HANDLE dir; /* Directory handle */
|
||
|
|
cups_dentry_t entry; /* Directory entry */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* '_cups_dir_time()' - Convert a FILETIME value to a UNIX time value.
|
||
|
|
*/
|
||
|
|
|
||
|
|
time_t /* O - UNIX time */
|
||
|
|
_cups_dir_time(FILETIME ft) /* I - File time */
|
||
|
|
{
|
||
|
|
ULONGLONG val; /* File time in 0.1 usecs */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Convert file time (1/10 microseconds since Jan 1, 1601) to UNIX
|
||
|
|
* time (seconds since Jan 1, 1970). There are 11,644,732,800 seconds
|
||
|
|
* between them...
|
||
|
|
*/
|
||
|
|
|
||
|
|
val = ft.dwLowDateTime + ((ULONGLONG)ft.dwHighDateTime << 32);
|
||
|
|
return ((time_t)(val / 10000000 - 11644732800));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirClose()' - Close a directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
void
|
||
|
|
cupsDirClose(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Close an open directory handle...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (dp->dir != INVALID_HANDLE_VALUE)
|
||
|
|
FindClose(dp->dir);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Free memory used...
|
||
|
|
*/
|
||
|
|
|
||
|
|
free(dp);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirOpen()' - Open a directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
cups_dir_t * /* O - Directory pointer or @code NULL@ if the directory could not be opened. */
|
||
|
|
cupsDirOpen(const char *directory) /* I - Directory name */
|
||
|
|
{
|
||
|
|
cups_dir_t *dp; /* Directory */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!directory)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Allocate memory for the directory structure...
|
||
|
|
*/
|
||
|
|
|
||
|
|
dp = (cups_dir_t *)calloc(1, sizeof(cups_dir_t));
|
||
|
|
if (!dp)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copy the directory name for later use...
|
||
|
|
*/
|
||
|
|
|
||
|
|
dp->dir = INVALID_HANDLE_VALUE;
|
||
|
|
|
||
|
|
strlcpy(dp->directory, directory, sizeof(dp->directory));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the new directory structure...
|
||
|
|
*/
|
||
|
|
|
||
|
|
return (dp);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirRead()' - Read the next directory entry.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
cups_dentry_t * /* O - Directory entry or @code NULL@ if there are no more */
|
||
|
|
cupsDirRead(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
WIN32_FIND_DATAA entry; /* Directory entry data */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* See if we have already started finding files...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (dp->dir == INVALID_HANDLE_VALUE)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* No, find the first file...
|
||
|
|
*/
|
||
|
|
|
||
|
|
dp->dir = FindFirstFileA(dp->directory, &entry);
|
||
|
|
if (dp->dir == INVALID_HANDLE_VALUE)
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
else if (!FindNextFileA(dp->dir, &entry))
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copy the name over and convert the file information...
|
||
|
|
*/
|
||
|
|
|
||
|
|
strlcpy(dp->entry.filename, entry.cFileName, sizeof(dp->entry.filename));
|
||
|
|
|
||
|
|
if (entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
||
|
|
dp->entry.fileinfo.st_mode = 0755 | S_IFDIR;
|
||
|
|
else
|
||
|
|
dp->entry.fileinfo.st_mode = 0644;
|
||
|
|
|
||
|
|
dp->entry.fileinfo.st_atime = _cups_dir_time(entry.ftLastAccessTime);
|
||
|
|
dp->entry.fileinfo.st_ctime = _cups_dir_time(entry.ftCreationTime);
|
||
|
|
dp->entry.fileinfo.st_mtime = _cups_dir_time(entry.ftLastWriteTime);
|
||
|
|
dp->entry.fileinfo.st_size = entry.nFileSizeLow + ((unsigned long long)entry.nFileSizeHigh << 32);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the entry...
|
||
|
|
*/
|
||
|
|
|
||
|
|
return (&(dp->entry));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirRewind()' - Rewind to the start of the directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
void
|
||
|
|
cupsDirRewind(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Close an open directory handle...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (dp->dir != INVALID_HANDLE_VALUE)
|
||
|
|
{
|
||
|
|
FindClose(dp->dir);
|
||
|
|
dp->dir = INVALID_HANDLE_VALUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
/*
|
||
|
|
* POSIX implementation...
|
||
|
|
*/
|
||
|
|
|
||
|
|
# include <sys/types.h>
|
||
|
|
# include <dirent.h>
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Types and structures...
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct _cups_dir_s /**** Directory data structure ****/
|
||
|
|
{
|
||
|
|
char directory[1024]; /* Directory filename */
|
||
|
|
DIR *dir; /* Directory file */
|
||
|
|
cups_dentry_t entry; /* Directory entry */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirClose()' - Close a directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
void
|
||
|
|
cupsDirClose(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
DEBUG_printf(("cupsDirClose(dp=%p)", (void *)dp));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Close the directory and free memory...
|
||
|
|
*/
|
||
|
|
|
||
|
|
closedir(dp->dir);
|
||
|
|
free(dp);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirOpen()' - Open a directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
cups_dir_t * /* O - Directory pointer or @code NULL@ if the directory could not be opened. */
|
||
|
|
cupsDirOpen(const char *directory) /* I - Directory name */
|
||
|
|
{
|
||
|
|
cups_dir_t *dp; /* Directory */
|
||
|
|
|
||
|
|
|
||
|
|
DEBUG_printf(("cupsDirOpen(directory=\"%s\")", directory));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!directory)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Allocate memory for the directory structure...
|
||
|
|
*/
|
||
|
|
|
||
|
|
dp = (cups_dir_t *)calloc(1, sizeof(cups_dir_t));
|
||
|
|
if (!dp)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Open the directory...
|
||
|
|
*/
|
||
|
|
|
||
|
|
dp->dir = opendir(directory);
|
||
|
|
if (!dp->dir)
|
||
|
|
{
|
||
|
|
free(dp);
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copy the directory name for later use...
|
||
|
|
*/
|
||
|
|
|
||
|
|
strlcpy(dp->directory, directory, sizeof(dp->directory));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the new directory structure...
|
||
|
|
*/
|
||
|
|
|
||
|
|
return (dp);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirRead()' - Read the next directory entry.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
cups_dentry_t * /* O - Directory entry or @code NULL@ when there are no more */
|
||
|
|
cupsDirRead(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
struct dirent *entry; /* Pointer to entry */
|
||
|
|
char filename[1024]; /* Full filename */
|
||
|
|
|
||
|
|
|
||
|
|
DEBUG_printf(("2cupsDirRead(dp=%p)", (void *)dp));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return (NULL);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Try reading an entry that is not "." or ".."...
|
||
|
|
*/
|
||
|
|
|
||
|
|
for (;;)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* Read the next entry...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if ((entry = readdir(dp->dir)) == NULL)
|
||
|
|
{
|
||
|
|
DEBUG_puts("3cupsDirRead: readdir() returned a NULL pointer!");
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
DEBUG_printf(("4cupsDirRead: readdir() returned \"%s\"...", entry->d_name));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Skip "." and ".."...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, ".."))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copy the name over and get the file information...
|
||
|
|
*/
|
||
|
|
|
||
|
|
strlcpy(dp->entry.filename, entry->d_name, sizeof(dp->entry.filename));
|
||
|
|
|
||
|
|
snprintf(filename, sizeof(filename), "%s/%s", dp->directory, entry->d_name);
|
||
|
|
|
||
|
|
if (stat(filename, &(dp->entry.fileinfo)))
|
||
|
|
{
|
||
|
|
DEBUG_printf(("3cupsDirRead: stat() failed for \"%s\" - %s...", filename,
|
||
|
|
strerror(errno)));
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the entry...
|
||
|
|
*/
|
||
|
|
|
||
|
|
return (&(dp->entry));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 'cupsDirRewind()' - Rewind to the start of the directory.
|
||
|
|
*
|
||
|
|
* @since CUPS 1.2/macOS 10.5@
|
||
|
|
*/
|
||
|
|
|
||
|
|
void
|
||
|
|
cupsDirRewind(cups_dir_t *dp) /* I - Directory pointer */
|
||
|
|
{
|
||
|
|
DEBUG_printf(("cupsDirRewind(dp=%p)", (void *)dp));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Range check input...
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!dp)
|
||
|
|
return;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Rewind the directory...
|
||
|
|
*/
|
||
|
|
|
||
|
|
rewinddir(dp->dir);
|
||
|
|
}
|
||
|
|
#endif /* _WIN32 */
|