From c7ec88c88adb4f15b154ad125977d9c2c4ae4956 Mon Sep 17 00:00:00 2001 From: "berkeviktor@aol.com" Date: Fri, 2 Apr 2010 07:29:16 +0200 Subject: move additions to own repo, so that patch contains only modifications --- src/common/dirent.h | 230 ++++++++++++++++++++++++++++++++++++++++++++++++ src/common/makefile.mak | 13 +++ 2 files changed, 243 insertions(+) create mode 100644 src/common/dirent.h create mode 100644 src/common/makefile.mak (limited to 'src/common') diff --git a/src/common/dirent.h b/src/common/dirent.h new file mode 100644 index 00000000..64251740 --- /dev/null +++ b/src/common/dirent.h @@ -0,0 +1,230 @@ +/***************************************************************************** + * dirent.h - dirent API for Microsoft Visual Studio + * + * Copyright (C) 2006 Toni Ronkko + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * ``Software''), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL TONI RONKKO BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Dec 15, 2009, John Cunningham + * Added rewinddir member function + * + * Jan 18, 2008, Toni Ronkko + * Using FindFirstFileA and WIN32_FIND_DATAA to avoid converting string + * between multi-byte and unicode representations. This makes the + * code simpler and also allows the code to be compiled under MingW. Thanks + * to Azriel Fasten for the suggestion. + * + * Mar 4, 2007, Toni Ronkko + * Bug fix: due to the strncpy_s() function this file only compiled in + * Visual Studio 2005. Using the new string functions only when the + * compiler version allows. + * + * Nov 2, 2006, Toni Ronkko + * Major update: removed support for Watcom C, MS-DOS and Turbo C to + * simplify the file, updated the code to compile cleanly on Visual + * Studio 2005 with both unicode and multi-byte character strings, + * removed rewinddir() as it had a bug. + * + * Aug 20, 2006, Toni Ronkko + * Removed all remarks about MSVC 1.0, which is antiqued now. Simplified + * comments by removing SGML tags. + * + * May 14 2002, Toni Ronkko + * Embedded the function definitions directly to the header so that no + * source modules need to be included in the Visual Studio project. Removed + * all the dependencies to other projects so that this very header can be + * used independently. + * + * May 28 1998, Toni Ronkko + * First version. + *****************************************************************************/ +#ifndef DIRENT_H +#define DIRENT_H + +#include +#include +#include + + +typedef struct dirent +{ + char d_name[MAX_PATH + 1]; /* current dir entry (multi-byte char string) */ + WIN32_FIND_DATAA data; /* file attributes */ +} dirent; + + +typedef struct DIR +{ + dirent current; /* Current directory entry */ + int cached; /* Indicates un-processed entry in memory */ + HANDLE search_handle; /* File search handle */ + char patt[MAX_PATH + 3]; /* search pattern (3 = pattern + "\\*\0") */ +} DIR; + + +/* Forward declarations */ +static DIR *opendir (const char *dirname); +static struct dirent *readdir (DIR *dirp); +static int closedir (DIR *dirp); +static void rewinddir(DIR* dirp); + + +/* Use the new safe string functions introduced in Visual Studio 2005 */ +#if defined(_MSC_VER) && _MSC_VER >= 1400 +# define STRNCPY(dest,src,size) strncpy_s((dest),(size),(src),_TRUNCATE) +#else +# define STRNCPY(dest,src,size) strncpy((dest),(src),(size)) +#endif + + +/***************************************************************************** + * Open directory stream DIRNAME for read and return a pointer to the + * internal working area that is used to retrieve individual directory + * entries. + */ +static DIR *opendir(const char *dirname) +{ + DIR *dirp; + assert (dirname != NULL); + assert (strlen (dirname) < MAX_PATH); + + /* construct new DIR structure */ + dirp = (DIR*) malloc (sizeof (struct DIR)); + if (dirp != NULL) { + char *p; + + /* take directory name... */ + STRNCPY (dirp->patt, dirname, sizeof(dirp->patt)); + dirp->patt[MAX_PATH] = '\0'; + + /* ... and append search pattern to it */ + p = strchr (dirp->patt, '\0'); + if (dirp->patt < p && *(p-1) != '\\' && *(p-1) != ':') { + *p++ = '\\'; + } + *p++ = '*'; + *p = '\0'; + + /* open stream and retrieve first file */ + dirp->search_handle = FindFirstFileA (dirp->patt, &dirp->current.data); + if (dirp->search_handle == INVALID_HANDLE_VALUE) { + /* invalid search pattern? */ + free (dirp); + return NULL; + } + + /* there is an un-processed directory entry in memory now */ + dirp->cached = 1; + } + + return dirp; +} + + +/***************************************************************************** + * Read a directory entry, and return a pointer to a dirent structure + * containing the name of the entry in d_name field. Individual directory + * entries returned by this very function include regular files, + * sub-directories, pseudo-directories "." and "..", but also volume labels, + * hidden files and system files may be returned. + */ +static struct dirent *readdir(DIR *dirp) +{ + assert (dirp != NULL); + + if (dirp->search_handle == INVALID_HANDLE_VALUE) { + /* directory stream was opened/rewound incorrectly or ended normally */ + return NULL; + } + + /* get next directory entry */ + if (dirp->cached != 0) { + /* a valid directory entry already in memory */ + dirp->cached = 0; + } else { + /* read next directory entry from disk */ + if (FindNextFileA (dirp->search_handle, &dirp->current.data) == FALSE) { + /* the very last file has been processed or an error occured */ + FindClose (dirp->search_handle); + dirp->search_handle = INVALID_HANDLE_VALUE; + return NULL; + } + } + + /* copy as a multibyte character string */ + STRNCPY ( dirp->current.d_name, + dirp->current.data.cFileName, + sizeof(dirp->current.d_name) ); + dirp->current.d_name[MAX_PATH] = '\0'; + + return &dirp->current; +} + + +/***************************************************************************** + * Close directory stream opened by opendir() function. Close of the + * directory stream invalidates the DIR structure as well as any previously + * read directory entry. + */ +static int closedir(DIR *dirp) +{ + assert (dirp != NULL); + + /* release search handle */ + if (dirp->search_handle != INVALID_HANDLE_VALUE) { + FindClose (dirp->search_handle); + dirp->search_handle = INVALID_HANDLE_VALUE; + } + + /* release directory handle */ + free (dirp); + return 0; +} + + +/***************************************************************************** + * Resets the position of the directory stream to which dirp refers to the + * beginning of the directory. It also causes the directory stream to refer + * to the current state of the corresponding directory, as a call to opendir() + * would have done. If dirp does not refer to a directory stream, the effect + * is undefined. + */ +static void rewinddir(DIR* dirp) +{ + /* release search handle */ + if (dirp->search_handle != INVALID_HANDLE_VALUE) { + FindClose (dirp->search_handle); + dirp->search_handle = INVALID_HANDLE_VALUE; + } + + /* open new search handle and retrieve first file */ + dirp->search_handle = FindFirstFileA (dirp->patt, &dirp->current.data); + if (dirp->search_handle == INVALID_HANDLE_VALUE) { + /* invalid search pattern? */ + free (dirp); + return; + } + + /* there is an un-processed directory entry in memory now */ + dirp->cached = 1; +} + + +#endif /*DIRENT_H*/ diff --git a/src/common/makefile.mak b/src/common/makefile.mak new file mode 100644 index 00000000..ee046895 --- /dev/null +++ b/src/common/makefile.mak @@ -0,0 +1,13 @@ +include "..\makeinc.mak" + +all: $(COMMON_OBJECTS) xchatcommon.lib + +xchatcommon.lib: $(COMMON_OBJECTS) + lib -out:xchatcommon.lib $(COMMON_OBJECTS) + +.c.obj: + $(CC) $(CFLAGS) $(GLIB) $< + +clean: + del *.obj + del xchatcommon.lib -- cgit 1.4.1