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100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP HTML Embedded Scripting Language Version 3.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
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+----------------------------------------------------------------------+
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of one of the following licenses: |
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| A) the GNU General Public License as published by the Free Software |
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| Foundation; either version 2 of the License, or (at your option) |
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| any later version. |
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| |
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| B) the PHP License as published by the PHP Development Team and |
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| included in the distribution in the file: LICENSE |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of both licenses referred to here. |
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| If you did not, or have any questions about PHP licensing, please |
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| contact core@php.net. |
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+----------------------------------------------------------------------+
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| Author: Stig Sæther Bakken <ssb@guardian.no> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "php.h"
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#include <stdlib.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <errno.h>
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#include <stdio.h>
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#if MSVC5
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#include "win32/time.h"
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#else
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#include <sys/time.h>
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#endif
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#include "uniqid.h"
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/* {{{ proto string uniqid(string prefix)
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Generate a unique id */
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PHP_FUNCTION(uniqid)
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{
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#ifdef HAVE_GETTIMEOFDAY
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pval *prefix;
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char uniqid[128];
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int sec, usec;
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struct timeval tv;
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if (ARG_COUNT(ht) != 1 || getParameters(ht,1,&prefix)==FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_string(prefix);
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/* Do some bounds checking since we are using a char array. */
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if (strlen(prefix->value.str.val) > 114) {
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php3_error(E_WARNING, "The prefix to uniqid should not be more than 114 characters.");
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return;
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}
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/* dont need this on windows so lets not do it*/
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#if HAVE_USLEEP && !(WIN32|WINNT)
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usleep(1);
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#endif
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gettimeofday((struct timeval *) &tv, (struct timezone *) NULL);
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sec = (int) tv.tv_sec;
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usec = (int) (tv.tv_usec % 1000000);
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/* The max value usec can have is 0xF423F, so we use only five hex
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* digits for usecs:
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*/
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sprintf(uniqid, "%s%08x%05x", prefix->value.str.val, sec, usec);
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RETURN_STRING(uniqid,1);
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#endif
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}
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/* }}} */
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function_entry uniqid_functions[] = {
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{"uniqid", php3_uniqid, NULL},
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{NULL, NULL, NULL}
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};
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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