63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
typedef unsigned short int sa_family_t;
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#define __KERNEL_STRICT_NAMES
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#include <sys/types.h>
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#include <linux/netlink.h>
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#include <sys/socket.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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//From a uevent patch for hal
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#define HOTPLUG_BUFFER_SIZE 1024
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#define HOTPLUG_NUM_ENVP 32
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#define OBJECT_SIZE 512
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#ifndef NETLINK_KOBJECT_UEVENT
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#error Your kernel headers are too old, and do not define NETLINK_KOBJECT_UEVENT. You need Linux 2.6.10 or higher for KOBJECT_UEVENT support.
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#endif
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int main(int argc, char **argv, char **envp) {
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//Start listening
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int fd;
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struct sockaddr_nl ksnl;
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memset(&ksnl, 0x00, sizeof(struct sockaddr_nl));
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ksnl.nl_family=AF_NETLINK;
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ksnl.nl_pid=getpid();
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ksnl.nl_groups=0xffffffff;
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fd=socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
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if (fd==-1) {
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printf("Couldn't open kobject-uevent netlink socket");
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perror("");
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exit(1);
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}
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if (bind(fd, (struct sockaddr *) &ksnl, sizeof(struct sockaddr_nl))<0) {
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fprintf (stderr, "Error binding to netlink socket");
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close(fd);
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exit(1);
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}
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while(1) {
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char buffer[HOTPLUG_BUFFER_SIZE + OBJECT_SIZE];
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int buflen;
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buflen=recv(fd, &buffer, sizeof(buffer), 0);
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if (buflen<0) {
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exit(1);
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}
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if(argc>=2) {
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if(!strstr(buffer, argv[1])) continue;
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}
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printf("%s\n", buffer);
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char *pos = buffer + strlen(buffer);
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char *end = buffer + buflen;
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while(pos < end) {
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int l = strlen(pos);
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printf("\t%s\n", pos);
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pos += l+1;
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}
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}
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}
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