Counting file names in a directory that match a pattern

[Guest_imported]

Hello,

The heading says it all. I want to count files that match a pattern, say, *.c in a directory. I have to implement this on both AIX and Windows, so any help for these platforms will be appreciated.

Thanks,
SS

 

[Lim]

reading directory is platform dependend procedure.
For UNIX you can use something like that:

#if MACHINE == SUN4_SOLARIS
#include <dirent.h>
#else
#include <sys/types.h>
#endif

#if MACHINE == SUN4_SOLARIS
struct dirent *pFileOfDirectory = NULL;
#else
struct direct *pFileOfDirectory = NULL;
#endif
/* Don't sure about AIX */
{
DIR *pDir = NULL;
pDir = opendir(strDirPath);
if (pDir == NULL)
{
goto error;
}
while ((pFileOfDirectory = readdir(pDir)) != NULL)
{
/* Read file name */
if ((int)strcmp(pFileOfDirectory->d_name, &quot;.&quot == 0 ||
(int)strcmp(pFileOfDirectory->d_name, &quot;..&quot == 0) continue;

/* Make you filter */
AddByPattern(pFileOfDirectory->d_name,Pattern,ResArrayOfNames);
}
}
For WIN:
#include <stdio.h>
#include <windows.h>
#include <windowsx.h>
#include <tchar.h>

{
WIN32_FIND_DATA sFindData;
HANDLE hFind;

/* remember current directory */
if (!GetCurrentDirectory( 255, (LPSTR)&strCurrentDir) )
{
goto error;
}
/* set Db directory */
if(!SetCurrentDirectory(strDbDirPath))
{
goto error;
}
/* Make sure we've successfully changed to the new directory */
if ( !GetCurrentDirectory( 255, (LPSTR)& strDbName) )
{
goto error;
}

hFind = FindFirstFile (__TEXT(&quot;*.*&quot, &sFindData);
bDirwalkAgain = ( hFind != INVALID_HANDLE_VALUE ) ;
/* take a file */
while (bDirwalkAgain)
{
if ( strcmp(sFindData.cFileName,&quot;.&quot != 0 && strcmp(sFindData.cFileName,&quot;..&quot != 0)
{

/* Make you filter */
AddByPattern(sFindData.cFileName, Pattern,ResArrayOfNames);
}

bDirwalkAgain = FindNextFile(hFind, &sFindData);
}
FindClose(hFind); /* close search */
/* Change the default directory back to the original */
SetCurrentDirectory(strCurrentDir);
}

It is not an exact code, but I hope you have got the idea.

 

[aniket]

the answer is findfirst() and findnext() functions in include file
&quot;dir.h&quot;