root/main/php_scandir.c

DEFINITIONS

1. php_alphasort
2. php_scandir

/* 
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2008 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Shane Caraveo <shane@caraveo.com>                            |
   |         Ilia Alshanetsky <ilia@prohost.org>                          |
   +----------------------------------------------------------------------+
 */

/* $Id: php_scandir.c,v 1.12.2.1.2.6 2007/12/31 07:20:15 sebastian Exp $ */

#include "php.h"
#include "php_scandir.h"

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif

#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif

#ifndef HAVE_SCANDIR

#ifdef PHP_WIN32
#include "win32/param.h"
#include "win32/readdir.h"
#endif  

#include <stdlib.h>
#ifndef NETWARE
#include <search.h>
#endif

#endif /* HAVE_SCANDIR */

#ifndef HAVE_ALPHASORT

#ifdef HAVE_STRING_H
#include <string.h>
#endif

int php_alphasort(const struct dirent **a, const struct dirent **b)
{
        return strcoll((*a)->d_name,(*b)->d_name);
}
#endif /* HAVE_ALPHASORT */

#ifndef HAVE_SCANDIR
int php_scandir(const char *dirname, struct dirent **namelist[], int (*selector) (const struct dirent *entry), int (*compare) (const struct dirent **a, const struct dirent **b))
{
        DIR *dirp = NULL;
        struct dirent **vector = NULL;
        int vector_size = 0;
        int nfiles = 0;
        char entry[sizeof(struct dirent)+MAXPATHLEN];
        struct dirent *dp = (struct dirent *)&entry;

        if (namelist == NULL) {
                return -1;
        }

        if (!(dirp = opendir(dirname))) {
                return -1;
        }

        while (!php_readdir_r(dirp, (struct dirent *)entry, &dp) && dp) {
                int dsize = 0;
                struct dirent *newdp = NULL;

                if (selector && (*selector)(dp) == 0) {
                        continue;
                }

                if (nfiles == vector_size) {
                        struct dirent **newv;
                        if (vector_size == 0) {
                                vector_size = 10;
                        } else { 
                                vector_size *= 2;
                        }

                        newv = (struct dirent **) realloc (vector, vector_size * sizeof (struct dirent *));
                        if (!newv) {
                                return -1;
                        }
                        vector = newv;
                }

                dsize = sizeof (struct dirent) + ((strlen(dp->d_name) + 1) * sizeof(char));
                newdp = (struct dirent *) malloc(dsize);

                if (newdp == NULL) {
                        goto fail;
                }

                vector[nfiles++] = (struct dirent *) memcpy(newdp, dp, dsize);
        }

        closedir(dirp);

        *namelist = vector;

        if (compare) {
                qsort (*namelist, nfiles, sizeof(struct dirent *), compare);
        }

        return nfiles;

fail:
        while (nfiles-- > 0) {
                free(vector[nfiles]);
        }
        free(vector);
        return -1;      
}
#endif

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */