Attachment 106282 Details for Bug 146845 – file.txt

file.txt

file.txt (text/plain), 4.81 KB, created by Anton Lavrentiev on 2010-05-22 23:10:01 UTC

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Creator: Anton Lavrentiev

Created: 2010-05-22 23:10:01 UTC

Size: 4.81 KB

patch

obsolete

>#include <errno.h>
>#include <sys/socket.h>
>#include <sys/types.h>
>#include <sys/time.h>
>#include <netinet/in.h>
>#include <stdio.h>
>#include <string.h>
>#include <stdlib.h>
>#include <unistd.h>
>
>#define BUG
>
>int main(void)
>{
>    char buf[40];
>    int a, s, len;
>    struct sockaddr_in sin;
>    struct linger lg;
>    pid_t pid;
>
>    if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
>        perror("socket");
>        return 1;
>    }
>    memset(&sin, 0, sizeof(sin));
>    sin.sin_len = sizeof(sin);
>    sin.sin_family = AF_INET;
>    sin.sin_port = htons(7890);
>    if (bind(s, (struct sockaddr*) &sin, sizeof(sin)) < 0) {
>        perror("bind");
>        return 1;
>    }
>    if (listen(s, 100) < 0) {
>        perror("listen");
>        return 1;
>    }
>    if (pid = fork()) {
>        len = sizeof(sin);
>        memset(&sin, 0, sizeof(sin));
>        if ((a = accept(s, (struct sockaddr*) &sin, &len)) < 0) {
>            perror("accept");
>            return 1;
>        }
>        close(s);
>        s = a;
>    } else {
>        close(s);
>        if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
>            perror("socket");
>            return 1;
>        } 
>        if (connect(s, (struct sockaddr*) &sin, sizeof(sin)) < 0) {
>            perror("connect");
>            return 1;
>        }
>    }
>    if (write(s, "Hello\n", 6) < 6) {
>        perror("write");
>        return 1;
>    }
>    if ((len = read(s, buf, sizeof(buf))) < 0) {
>        perror("read");
>        return 1;
>    }
>    lg.l_linger = 5;
>    lg.l_onoff  = 1;
>    if (setsockopt(s, SOL_SOCKET, SO_LINGER, &lg, sizeof(lg)) < 0) {
>        perror("setsockopt");
>        return 1;
>    }
>    if (pid) {
>        struct timeval tv = {0, 350000} ;
>        select(0, 0, 0, 0, &tv);
>    }
>#ifdef BUG
>    if (shutdown(s, SHUT_WR) < 0) {
>        perror("shutdown");
>        return 1;
>    }
>#endif
>    errno = 0;
>    a = close(s);
>    if (a < 0)
>        perror("close");
>    printf("%.*s %d %d\n", len, buf, a, errno);
>    return a; 
>}
>
>#if 0
>
> 68009 a.out    CALL  socket(PF_INET,SOCK_STREAM,IPPROTO_IP)
> 68009 a.out    RET   socket 3
> 68009 a.out    CALL  bind(0x3,0xbfbfe9dc,0x10)
> 68009 a.out    STRU  struct sockaddr { AF_INET, 0.0.0.0:7890 }
> 68009 a.out    RET   bind 0
> 68009 a.out    CALL  listen(0x3,0x64)
> 68009 a.out    RET   listen 0
> 68009 a.out    CALL  fork
> 68009 a.out    RET   fork 68010/0x109aa
> 68010 a.out    RET   fork 0
> 68009 a.out    CALL  accept(0x3,0xbfbfe9dc,0xbfbfe9ec)
> 68010 a.out    CALL  close(0x3)
> 68010 a.out    RET   close 0
> 68010 a.out    CALL  socket(PF_INET,SOCK_STREAM,IPPROTO_IP)
> 68010 a.out    RET   socket 3
> 68010 a.out    CALL  connect(0x3,0xbfbfe9dc,0x10)
> 68010 a.out    STRU  struct sockaddr { AF_INET, 0.0.0.0:7890 }
> 68010 a.out    RET   connect 0
> 68010 a.out    CALL  write(0x3,0x8048bc3,0x6)
> 68010 a.out    GIO   fd 3 wrote 6 bytes
>       "Hello
>       "
> 68009 a.out    STRU  struct sockaddr { AF_INET, 127.0.0.1:12597 }
> 68010 a.out    RET   write 6
> 68009 a.out    RET   accept 4
> 68010 a.out    CALL  read(0x3,0xbfbfe9f0,0x28)
> 68009 a.out    CALL  close(0x3)
> 68009 a.out    RET   close 0
> 68009 a.out    CALL  write(0x4,0x8048bc3,0x6)
> 68009 a.out    GIO   fd 4 wrote 6 bytes
>       "Hello
>       "
> 68009 a.out    RET   write 6
> 68009 a.out    CALL  read(0x4,0xbfbfe9f0,0x28)
> 68010 a.out    GIO   fd 3 read 6 bytes
>       "Hello
>       "
> 68010 a.out    RET   read 6
> 68009 a.out    GIO   fd 4 read 6 bytes
>       "Hello
>       "
> 68009 a.out    RET   read 6
> 68010 a.out    CALL  setsockopt(0x3,SOL_SOCKET,SO_LINGER,0xbfbfe9d4,0x8)
> 68010 a.out    RET   setsockopt 0
> 68009 a.out    CALL  setsockopt(0x4,SOL_SOCKET,SO_LINGER,0xbfbfe9d4,0x8)
> 68009 a.out    RET   setsockopt 0
> 68010 a.out    CALL  shutdown(0x3,<invalid=1>)
> 68009 a.out    CALL  select(0,0,0,0,0xbfbfe9cc)
> 68010 a.out    RET   shutdown 0
> 68010 a.out    CALL  close(0x3)
> 68010 a.out    RET   close 0
> 68010 a.out    CALL  write(0x1,0x28201000,0x6)
> 68010 a.out    GIO   fd 1 wrote 6 bytes
>       "Hello
>       "
> 68010 a.out    RET   write 6
> 68010 a.out    CALL  write(0x1,0x28201000,0x5)
> 68010 a.out    GIO   fd 1 wrote 5 bytes
>       " 0 0
>       "
> 68010 a.out    RET   write 5
> 68010 a.out    CALL  exit(0)
> 68009 a.out    RET   select 0
> 68009 a.out    CALL  shutdown(0x4,<invalid=1>)
> 68009 a.out    RET   shutdown 0
> 68009 a.out    CALL  close(0x4)
> 68009 a.out    RET   close -1 errno 54 Connection reset by peer           <<<=== BUG!!!
> 68009 a.out    CALL  writev(0x2,0xbfbfe168,0x4)
> 68009 a.out    GIO   fd 2 wrote 32 bytes
>       "close: Connection reset by peer
>       "
> 68009 a.out    RET   writev 32/0x20
> 68009 a.out    CALL  write(0x1,0x28201000,0x6)
> 68009 a.out    GIO   fd 1 wrote 6 bytes
>       "Hello
>       "
> 68009 a.out    RET   write 6
> 68009 a.out    CALL  write(0x1,0x28201000,0x7)
> 68009 a.out    GIO   fd 1 wrote 7 bytes
>       " -1 54
>       "
> 68009 a.out    RET   write 7
> 68009 a.out    CALL  exit(0xffffffff)
>
>#endif

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