root/main/streams/glob_wrapper.c

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DEFINITIONS

This source file includes following definitions.
  1. _php_glob_stream_get_path
  2. _php_glob_stream_get_pattern
  3. _php_glob_stream_get_count
  4. php_glob_stream_path_split
  5. php_glob_stream_read
  6. php_glob_stream_close
  7. php_glob_stream_rewind
  8. php_glob_stream_opener

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2015 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.               |
   +----------------------------------------------------------------------+
   | Authors: Marcus Boerger <helly@php.net>                              |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

#include "php.h"
#include "php_streams_int.h"

#ifdef HAVE_GLOB
# ifndef PHP_WIN32
#  include <glob.h>
# else
#  include "win32/glob.h"
# endif
#endif

#ifdef HAVE_GLOB
#ifndef GLOB_ONLYDIR
#define GLOB_ONLYDIR (1<<30)
#define GLOB_FLAGMASK (~GLOB_ONLYDIR)
#else
#define GLOB_FLAGMASK (~0)
#endif

typedef struct {
        glob_t   glob;
        size_t   index;
        int      flags;
        char     *path;
        size_t   path_len;
        char     *pattern;
        size_t   pattern_len;
} glob_s_t;

PHPAPI char* _php_glob_stream_get_path(php_stream *stream, int copy, int *plen STREAMS_DC TSRMLS_DC) /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;

        if (pglob && pglob->path) {
                if (plen) {
                        *plen = pglob->path_len;
                }
                if (copy) {
                        return estrndup(pglob->path, pglob->path_len);
                } else {
                        return pglob->path;
                }
        } else {
                if (plen) {
                        *plen = 0;
                }
                return NULL;
        }
}
/* }}} */

PHPAPI char* _php_glob_stream_get_pattern(php_stream *stream, int copy, int *plen STREAMS_DC TSRMLS_DC) /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;
        
        if (pglob && pglob->pattern) {
                if (plen) {
                        *plen = pglob->pattern_len;
                }
                if (copy) {
                        return estrndup(pglob->pattern, pglob->pattern_len);
                } else {
                        return pglob->pattern;
                }
        } else {
                if (plen) {
                        *plen = 0;
                }
                return NULL;
        }
}
/* }}} */

PHPAPI int _php_glob_stream_get_count(php_stream *stream, int *pflags STREAMS_DC TSRMLS_DC) /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;

        if (pglob) {
                if (pflags) {
                        *pflags = pglob->flags;
                }
                return pglob->glob.gl_pathc;
        } else {
                if (pflags) {
                        *pflags = 0;
                }
                return 0;
        }
}
/* }}} */

static void php_glob_stream_path_split(glob_s_t *pglob, const char *path, int get_path, const char **p_file TSRMLS_DC) /* {{{ */
{
        const char *pos, *gpath = path;

        if ((pos = strrchr(path, '/')) != NULL) {
                path = pos+1;
        }
#if defined(PHP_WIN32) || defined(NETWARE)
        if ((pos = strrchr(path, '\\')) != NULL) {
                path = pos+1;
        }
#endif

        *p_file = path;

        if (get_path) {
                if (pglob->path) {
                        efree(pglob->path);
                }
                if (path != gpath) {
                        path--;
                }
                pglob->path_len = path - gpath;
                pglob->path = estrndup(gpath, pglob->path_len);
        }
}
/* }}} */

static size_t php_glob_stream_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;
        php_stream_dirent *ent = (php_stream_dirent*)buf;
        const char *path;

        /* avoid problems if someone mis-uses the stream */
        if (count == sizeof(php_stream_dirent) && pglob) {
                if (pglob->index < (size_t)pglob->glob.gl_pathc) {
                        php_glob_stream_path_split(pglob, pglob->glob.gl_pathv[pglob->index++], pglob->flags & GLOB_APPEND, &path TSRMLS_CC);
                        PHP_STRLCPY(ent->d_name, path, sizeof(ent->d_name), strlen(path));
                        return sizeof(php_stream_dirent);
                }
                pglob->index = pglob->glob.gl_pathc;
                if (pglob->path) {
                        efree(pglob->path);
                        pglob->path = NULL;
                }
        }

        return 0;
}
/* }}} */

static int php_glob_stream_close(php_stream *stream, int close_handle TSRMLS_DC)  /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;

        if (pglob) {
                pglob->index = 0;
                globfree(&pglob->glob);
                if (pglob->path) {
                        efree(pglob->path);
                }
                if (pglob->pattern) {
                        efree(pglob->pattern);
                }
        }
        efree(stream->abstract);
        return 0;
}
/* {{{ */

static int php_glob_stream_rewind(php_stream *stream, off_t offset, int whence, off_t *newoffs TSRMLS_DC) /* {{{ */
{
        glob_s_t *pglob = (glob_s_t *)stream->abstract;

        if (pglob) {
                pglob->index = 0;
                if (pglob->path) {
                        efree(pglob->path);
                        pglob->path = NULL;
                }
        }
        return 0;
}
/* }}} */

php_stream_ops  php_glob_stream_ops = {
        NULL, php_glob_stream_read,
        php_glob_stream_close, NULL,
        "glob",
        php_glob_stream_rewind,
        NULL, /* cast */
        NULL, /* stat */
        NULL  /* set_option */
};

 /* {{{ php_glob_stream_opener */
static php_stream *php_glob_stream_opener(php_stream_wrapper *wrapper, const char *path, const char *mode,
                int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC)
{
        glob_s_t *pglob;
        int ret;
        const char *tmp, *pos;

        if (((options & STREAM_DISABLE_OPEN_BASEDIR) == 0) && php_check_open_basedir(path TSRMLS_CC)) {
                return NULL;
        }

        if (!strncmp(path, "glob://", sizeof("glob://")-1)) {
                path += sizeof("glob://")-1;
                if (opened_path) {
                        *opened_path = estrdup(path);
                }
        }

        pglob = ecalloc(sizeof(*pglob), 1);
        
        if (0 != (ret = glob(path, pglob->flags & GLOB_FLAGMASK, NULL, &pglob->glob))) {
#ifdef GLOB_NOMATCH
                if (GLOB_NOMATCH != ret)
#endif
                {
                        efree(pglob);
                        return NULL;
                }
        }

        pos = path;
        if ((tmp = strrchr(pos, '/')) != NULL) {
                pos = tmp+1;
        }
#if defined(PHP_WIN32) || defined(NETWARE)
        if ((tmp = strrchr(pos, '\\')) != NULL) {
                pos = tmp+1;
        }
#endif

        pglob->pattern_len = strlen(pos);
        pglob->pattern = estrndup(pos, pglob->pattern_len);

        pglob->flags |= GLOB_APPEND;

        if (pglob->glob.gl_pathc) {
                php_glob_stream_path_split(pglob, pglob->glob.gl_pathv[0], 1, &tmp TSRMLS_CC);
        } else {
                php_glob_stream_path_split(pglob, path, 1, &tmp TSRMLS_CC);
        }

        return php_stream_alloc(&php_glob_stream_ops, pglob, 0, mode);
}
/* }}} */

static php_stream_wrapper_ops  php_glob_stream_wrapper_ops = {
        NULL,
        NULL,
        NULL,
        NULL,
        php_glob_stream_opener,
        "glob",
        NULL,
        NULL,
        NULL,
        NULL
};

php_stream_wrapper  php_glob_stream_wrapper = {
        &php_glob_stream_wrapper_ops,
        NULL,
        0
};
#endif /* HAVE_GLOB */

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

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