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LCOV - code coverage report
Current view: top level - ext/standard - uniqid.c (source / functions) Hit Total Coverage
Test: PHP Code Coverage Lines: 15 15 100.0 %
Date: 2014-10-22 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :    +----------------------------------------------------------------------+
       3             :    | PHP Version 7                                                        |
       4             :    +----------------------------------------------------------------------+
       5             :    | Copyright (c) 1997-2014 The PHP Group                                |
       6             :    +----------------------------------------------------------------------+
       7             :    | This source file is subject to version 3.01 of the PHP license,      |
       8             :    | that is bundled with this package in the file LICENSE, and is        |
       9             :    | available through the world-wide-web at the following url:           |
      10             :    | http://www.php.net/license/3_01.txt                                  |
      11             :    | If you did not receive a copy of the PHP license and are unable to   |
      12             :    | obtain it through the world-wide-web, please send a note to          |
      13             :    | license@php.net so we can mail you a copy immediately.               |
      14             :    +----------------------------------------------------------------------+
      15             :    | Author: Stig Sæther Bakken <ssb@php.net>                             |
      16             :    +----------------------------------------------------------------------+
      17             :  */
      18             : 
      19             : /* $Id$ */
      20             : 
      21             : #include "php.h"
      22             : 
      23             : #include <stdlib.h>
      24             : #if HAVE_UNISTD_H
      25             : #include <unistd.h>
      26             : #endif
      27             : 
      28             : #include <string.h>
      29             : #include <errno.h>
      30             : 
      31             : #include <stdio.h>
      32             : #ifdef PHP_WIN32
      33             : #include "win32/time.h"
      34             : #else
      35             : #include <sys/time.h>
      36             : #endif
      37             : 
      38             : #include "php_lcg.h"
      39             : #include "uniqid.h"
      40             : 
      41             : /* {{{ proto string uniqid([string prefix [, bool more_entropy]])
      42             :    Generates a unique ID */
      43             : #ifdef HAVE_GETTIMEOFDAY
      44       13283 : PHP_FUNCTION(uniqid)
      45             : {
      46       13283 :         char *prefix = "";
      47             : #if defined(__CYGWIN__)
      48             :         zend_bool more_entropy = 1;
      49             : #else
      50       13283 :         zend_bool more_entropy = 0;
      51             : #endif
      52             :         zend_string *uniqid;
      53             :         int sec, usec;
      54       13283 :         size_t prefix_len = 0;
      55             :         struct timeval tv;
      56             : 
      57       13283 :         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sb", &prefix, &prefix_len,
      58             :                                                           &more_entropy)) {
      59           4 :                 return;
      60             :         }
      61             : 
      62             : #if HAVE_USLEEP && !defined(PHP_WIN32)
      63       13279 :         if (!more_entropy) {
      64             : #if defined(__CYGWIN__)
      65             :                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "You must use 'more entropy' under CYGWIN");
      66             :                 RETURN_FALSE;
      67             : #else
      68       13268 :                 usleep(1);
      69             : #endif
      70             :         }
      71             : #endif
      72       13279 :         gettimeofday((struct timeval *) &tv, (struct timezone *) NULL);
      73       13279 :         sec = (int) tv.tv_sec;
      74       13279 :         usec = (int) (tv.tv_usec % 0x100000);
      75             : 
      76             :         /* The max value usec can have is 0xF423F, so we use only five hex
      77             :          * digits for usecs.
      78             :          */
      79       13279 :         if (more_entropy) {
      80          11 :                 uniqid = strpprintf(0, "%s%08x%05x%.8F", prefix, sec, usec, php_combined_lcg(TSRMLS_C) * 10);
      81             :         } else {
      82       13268 :                 uniqid = strpprintf(0, "%s%08x%05x", prefix, sec, usec);
      83             :         }
      84             : 
      85       13279 :         RETURN_STR(uniqid);
      86             : }
      87             : #endif
      88             : /* }}} */
      89             : 
      90             : /*
      91             :  * Local variables:
      92             :  * tab-width: 4
      93             :  * c-basic-offset: 4
      94             :  * End:
      95             :  * vim600: sw=4 ts=4 fdm=marker
      96             :  * vim<600: sw=4 ts=4
      97             :  */

Generated by: LCOV version 1.10

Generated at Wed, 22 Oct 2014 07:24:58 +0000 (2 days ago)

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