Attachment 721359 Details for Bug 1034330

reproducer.c

xx.c (text/plain), 1.25 KB, created by Marcus Meissner on 2017-04-16 13:02:46 UTC

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Filename:

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Creator: Marcus Meissner

Created: 2017-04-16 13:02:46 UTC

Size: 1.25 KB

patch

obsolete

>
>#include <stdio.h>
>#include <string.h>
>#include <stdlib.h>
>#include <unistd.h>
>#include <sys/socket.h>
>#include <linux/types.h>
>#include <linux/netlink.h>
>
>#ifndef NETLINK_KOBJECT_UEVENT
>#define NETLINK_KOBJECT_UEVENT 15
>#endif
>
>int
>main(int argc, char **argv)
>{
>  int sock;
>  char *mp;
>  char message[4096];
>  struct msghdr msg;
>  struct iovec iovector;
>  struct sockaddr_nl address;
>
>  memset(&address, 0, sizeof(address));
>  address.nl_family = AF_NETLINK;
>  address.nl_pid = atoi(argv[1]);
>  address.nl_groups = 0;
>
>  msg.msg_name = (void*)&address;
>  msg.msg_namelen = sizeof(address);
>  msg.msg_iov = &iovector;
>  msg.msg_iovlen = 1;
>
>  sock = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
>  if (sock == -1) perror("socket netlink");
>  if (-1 == bind(sock, (struct sockaddr *) &address, sizeof(address)))
>	  perror("bind");
>
>  mp = message;
>  mp += sprintf(mp, "a@/d") + 1;
>  mp += sprintf(mp, "SUBSYSTEM=block") + 1;
>  mp += sprintf(mp, "DEVPATH=/dev/foo") + 1;
>  mp += sprintf(mp, "TIMEOUT=10") + 1;
>  mp += sprintf(mp, "ACTION=remove") +1;
>  mp += sprintf(mp, "REMOVE_CMD=/usr/bin/du") +1;
>
>  iovector.iov_base = (void*)message;
>  iovector.iov_len = (int)(mp-message);
>
>  if (-1 == sendmsg(sock, &msg, 0))
>	perror("sendmsg");;
>
>  close(sock);
>
>  return 0;
>}

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Attachments on bug 1034330: 721359