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[2002-01-15 16:35 UTC] jonatan at cyberdude dot com
when i am offline from the internet and access a file which contains only: <?php getimagesize( "http://www.php.net/image.gif" ); ?> httpd crashes. i am using the precompiled apache php module version 4.1.1 from <http://www.entropy.ch/software/macosx/ php/> on macosx 10.1.2. the configure line is: './configure' '--with-mysql' '--with-pgsql' '--with-apxs' '--with-gd=/usr/local' '--with-png-dir=/usr/local' '--with- zlib-dir=/usr' '--with-jpeg-dir=/usr/local' '--with- freetype-dir=/usr/local' '--enable-trans-sid' '--enable- exif' '--with-xml' '--enable-wddx' '--with-curl=/usr/local' '--with-pdflib=/usr/local' '--with-t1lib=/usr/local' '-- enable-ftp' '--enable-bcmath' and the crashlog: ********** Date/Time: 2002-01-15 16:02:50 +0100 OS Version: 10.1.2 (Build 5P48) Host: localhost Command: httpd PID: 771 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x0000001c Thread 0 Crashed: #0 0x00a27d50 in php_network_getaddresses #1 0x00a2800c in php_hostconnect #2 0x00aba634 in php_fopen_url_wrap_http #3 0x00a24ae0 in php_fopen_url_wrapper #4 0x00a24278 in php_fopen_wrapper #5 0x00abbc68 in zif_getimagesize #6 0x00a057c0 in execute #7 0x009f0f64 in zend_execute_scripts #8 0x00a27158 in php_execute_script #9 0x00a23d34 in apache_php_module_main #10 0x00a227e0 in send_php #11 0x0000c5ac in ap_invoke_handler #12 0x00016530 in process_request_internal #13 0x000165ac in ap_process_request #14 0x00005d5c in child_main #15 0x00005fcc in make_child #16 0x0000631c in perform_idle_server_maintenance #17 0x000068a0 in standalone_main #18 0x00006f64 in main #19 0x00001e18 in _start #20 0x00001c48 in start PPC Thread State: srr0: 0x00a27d50 srr1: 0x0000d030 vrsave: 0x00000000 xer: 0x20000020 lr: 0x00a27d20 ctr: 0x70025330 mq: 0x00000000 r0: 0x00a27d20 r1: 0xbfffb3a0 r2: 0xbfff6d90 r3: 0x00000002 r4: 0x00000000 r5: 0xbfffb238 r6: 0xbfffb2e8 r7: 0x00000803 r8: 0x00000000 r9: 0x00000000 r10: 0x00000000 r11: 0x2422228b r12: 0x70025330 r13: 0x00000000 r14: 0x00000000 r15: 0x00000000 r16: 0x00000000 r17: 0x00000004 r18: 0x00bfd0c4 r19: 0xbfffdae0 r20: 0x00000000 r21: 0xbfffdae4 r22: 0x00000000 r23: 0x00000000 r24: 0xbfffdae4 r25: 0x0021c4c0 r26: 0x00bfd0c4 r27: 0x00000001 r28: 0xbfffb450 r29: 0x00000000 r30: 0x0021c860 r31: 0x00a27cd8 ********** PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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i have recompiled php with --enable-debug, and managed to make a backtrace. hth... './configure' '--with-apxs' '--enable-debug' Program received signal EXC_BAD_ACCESS, Could not access memory. 0x005275b8 in php_network_getaddresses (host=0x1794e8 "www.php.net", sal=0xbfffade0) at network.c:151 151 network.c: No such file or directory. in network.c (gdb) bt #0 0x005275b8 in php_network_getaddresses (host=0x1794e8 "www.php.net", sal=0xbfffade0) at network.c:151 #1 0x005278b0 in php_hostconnect (host=0x2 <Address 0x2 out of bounds>, port=80, socktype=1, timeout=0) at network.c:289 #2 0x00584870 in php_fopen_url_wrap_http (path=0x1844f8 "http://www.php.net/image.gif", mode=0x5cc550 "rb", options=4, issock=0xbfffd470, socketd=0xbfffd474, opened_path=0x0) at http_fopen_wrapper.c:100 #3 0x005241bc in php_fopen_url_wrapper (path=0x1844f8 "http://www.php.net/image.gif", mode=0x5cc550 "rb", options=4, issock=0xbfffd470, socketd=0xbfffd474, opened_path=0x0) at fopen_wrappers.c:538 #4 0x0052383c in php_fopen_wrapper (path=0x1844f8 "http:// www.php.net/image.gif", mode=0x5cc550 "rb", options=0, issock=0xbfffac78, socketd=0x1103, opened_path=0x0) at fopen_wrappers.c:256 #5 0x00586080 in zif_getimagesize (ht=1, return_value= 0x1790f8, this_ptr=0xbfffabc8, return_value_used=- 1073763208) at image.c:439 #6 0x00503428 in execute (op_array=0x184468) at ./ zend_execute.c:1590 #7 0x004eddcc in zend_execute_scripts (type=2, retval=0x0, file_count=3) at zend.c:814 #8 0x00526954 in php_execute_script (primary_file= 0xbfffea98) at main.c:1307 #9 0x005232bc in apache_php_module_main (r=0x2, display_source_mode=0) at sapi_apache.c:90 #10 0x00521d44 in send_php (r=0x1770a8, display_source_mode=0, filename=0x0) at mod_php4.c:575 #11 0x0000c5ac in ap_invoke_handler () #12 0x00016530 in process_request_internal () #13 0x000165ac in ap_process_request () #14 0x00005d5c in child_main () #15 0x00005f18 in make_child () #16 0x00006084 in startup_children () #17 0x000066a8 in standalone_main () #18 0x00006f64 in main () #19 0x00001e18 in _start () #20 0x00001c48 in start () (gdb)When offline, Mac OS X's getaddrinfo() returns a null pointer for results, but does not return an error code. PHP didn't check for this, it will in the next release. Here's the patch; I will close this bug when it's in the cvs (could someone review and commit?): diff -c -r1.26 network.c *** network.c 6 Jan 2002 22:45:43 -0000 1.26 --- network.c 21 Jan 2002 00:38:16 -0000 *************** *** 150,155 **** --- 150,158 ---- if ((n = getaddrinfo(host, NULL, &hints, &res))) { php_error(E_WARNING, "php_network_getaddresses: getaddrinfo failed: %s", PHP_GAI_STRERROR(n)); return 0; + } else if (res == NULL) { + php_error(E_WARNING, "php_network_getaddresses: getaddrinfo failed (null result pointer)"); + return 0; } sai = res;