[ 0:00] compiling /home/xrockai/src/divine/nightly/test/posix/sock/recvfrom.c
[ 0:00] compiling /dios/lib/config/seqklee.bc
[ 0:00] setting up pass: functionmeta, options = 
[ 0:01] setting up pass: fuse-ctors, options = 
[ 0:01] KLEE: output directory is "/var/obj/divine-nightly/semidbg/test/__test_work_dir.15/_klee_out"
[ 0:04] KLEE: Using Z3 solver backend
[ 0:04] WARNING: this target does not support the llvm.stacksave intrinsic.
[ 0:04] warning: Linking two modules of different target triples: klee_div_zero_check.bc' is 'x86_64-unknown-linux-gnu' whereas 'klee.bc' is 'x86_64-unknown-none-elf'
[ 0:04] 
[ 0:04] KLEE: WARNING: undefined reference to function: __dios_tainted_init
[ 0:06] KLEE: WARNING: undefined reference to function: klee_free
[ 0:06] KLEE: WARNING: undefined reference to function: klee_malloc
[ 0:06] about to __boot:0
[ 0:06] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8.
[ 0:06] about to run the scheduler:0
[ 0:06] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5
[ 0:06] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init
[ 0:06] KLEE: NOTE: now ignoring this error at this location
[ 0:06] KLEE: ERROR: EXITING ON ERROR:
[ 0:06] Error: failed external call: __dios_tainted_init
[ 0:06] File: /dios/libc/sys/start.cpp
[ 0:06] Line: 87
[ 0:06] assembly.ll line: 35969
[ 0:06] Stack: 
[ 0:06] 	#000035969 in __dios_start (l=0, argc=1, argv=94775120920584, envp=94775120939016) at /dios/libc/sys/start.cpp:87
[ 0:06] 	#100010244 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163
[ 0:06] 	#200043552 in klee_boot (argc=1, argv=94775107766336) at /dios/arch/klee/boot.c:41
[ 0:06] 
[ 0:06] 
[ 0:06]      1	/* TAGS: c */
[ 0:06]      2	#include <unistd.h>
[ 0:06]      3	#include <stdio.h>
[ 0:06]      4	#include <assert.h>
[ 0:06]      5	#include <string.h>
[ 0:06]      6	#include <fcntl.h>
[ 0:06]      7	#include <errno.h>
[ 0:06]      8	#include <sys/stat.h>
[ 0:06]      9	#include <sys/socket.h>
[ 0:06]     10	#include <sys/un.h>
[ 0:06]     11	
[ 0:06]     12	int main()
[ 0:06]     13	{
[ 0:06]     14	    int server = socket( AF_UNIX, SOCK_STREAM, 0 );
[ 0:06]     15	    assert( server >= 0 );
[ 0:06]     16	
[ 0:06]     17	    int client = socket( AF_UNIX, SOCK_STREAM, 0 );
[ 0:06]     18	    assert( client >= 0 );
[ 0:06]     19	
[ 0:06]     20	    struct sockaddr_un server_addr, client_addr, peer_addr;
[ 0:06]     21	    socklen_t len = sizeof( server_addr );
[ 0:06]     22	    server_addr.sun_family = AF_UNIX;
[ 0:06]     23	    strcpy( server_addr.sun_path, "server" );
[ 0:06]     24	
[ 0:06]     25	    assert( bind( server, (struct sockaddr *) &server_addr, len ) == 0 );
[ 0:06]     26	    assert( listen( server, 5 ) == 0 );
[ 0:06]     27	    assert( connect( client, (struct sockaddr *) &server_addr, len ) == 0 );
[ 0:06]     28	    int server_fd = accept( server, (struct sockaddr *) &client_addr, &len );
[ 0:06]     29	    assert( server_fd > 0 );
[ 0:06]     30	
[ 0:06]     31	    char buf[8];
[ 0:06]     32	    assert( send( server_fd, "asdf", 5, 0 ) == 5 );
[ 0:06]     33	    assert( recvfrom( client, buf, 5, 0, (struct sockaddr *) &peer_addr, &len ) == 5 );
[ 0:06]     34	
[ 0:06]     35	    /* Not all systems appear to support getpeername on AF_UNIX sockets (the
[ 0:06]     36	     * address comes out empty on Linux, but gives the expected 'server' on
[ 0:06]     37	     * OpenBSD). */
[ 0:06]     38	    assert( !strcmp( peer_addr.sun_path, "server" ) );
[ 0:06]     39	
[ 0:06]     40	    /* NB. The below is the kind of behaviour Linux implements. It is not clear
[ 0:06]     41	     * from POSIX whether that is the intended behaviour -- getting sizeof(
[ 0:06]     42	     * struct sockaddr_un ) back would also appear to be legit and is what
[ 0:06]     43	     * OpenBSD does. */
[ 0:06]     44	    assert( len == sizeof( struct sockaddr ) + strlen( peer_addr.sun_path ) + 1 );
[ 0:06]     45	
[ 0:06]     46	    return 0;
[ 0:06]     47	}
[ 0:06] # no errors were expected but one was found anyway