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Bug #20424 stream_get_meta_data craches on a normal file stream
Submitted: 2002-11-14 04:36 UTC Modified: 2002-11-14 04:56 UTC
From: derick@php.net Assigned:
Status: Closed Package: Filesystem function related
PHP Version: 4CVS-2002-11-14 OS: Linux/Redhat
Private report: No CVE-ID: None
View Developer Edit
 [2002-11-14 04:36 UTC] derick@php.net 
this script:

<?php
$f = fopen("/etc/passwd", "r");
var_dump(stream_get_meta_data($f));
?>

produces the following backtrace:
0x4057a67b in strlen (str=0x0) at ../sysdeps/i386/strlen.c:28
28	../sysdeps/i386/strlen.c: No such file or directory.
	in ../sysdeps/i386/strlen.c
(gdb) bt
#0  0x4057a67b in strlen (str=0x0) at ../sysdeps/i386/strlen.c:28
#1  0x0821c8bd in add_assoc_string_ex (arg=0x8382654, 
    key=0x826c362 "wrapper_type", key_len=13, str=0x0, duplicate=1)
    at /dat/dev/php/php-4.3.0pre2/Zend/zend_API.c:671
#2  0x0816ce25 in zif_stream_get_meta_data (ht=1, return_value=0x8382654, 
    this_ptr=0x0, return_value_used=1)
    at /dat/dev/php/php-4.3.0pre2/ext/standard/file.c:603
#3  0x0822b393 in execute (op_array=0x837e234)
    at /dat/dev/php/php-4.3.0pre2/Zend/zend_execute.c:1595
#4  0x0821b34a in zend_execute_scripts (type=8, retval=0x0, file_count=3)
    at /dat/dev/php/php-4.3.0pre2/Zend/zend.c:839
#5  0x081eb3b8 in php_execute_script (primary_file=0xbffff970)
    at /dat/dev/php/php-4.3.0pre2/main/main.c:1542
#6  0x08237240 in main (argc=1, argv=0xbffffa14)
    at /dat/dev/php/php-4.3.0pre2/sapi/cli/php_cli.c:695
#7  0x40514306 in __libc_start_main (main=0x82369a4 <main>, argc=1, 
    ubp_av=0xbffffa14, init=0x807b468 <_init>, fini=0x8237920 <_fini>, 
    rtld_fini=0x4000d2dc <_dl_fini>, stack_end=0xbffffa0c)
    at ../sysdeps/generic/libc-start.c:129

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 [2002-11-14 04:56 UTC] derick@php.net 
This bug has been fixed in CVS.

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