freebsd.c

#include <fcntl.h>
#include <kvm.h>
#include <sys/sysctl.h>
#include <sys/user.h>


#include <unistd.h>
#include <stdio.h>
#include <time.h>

int main(int argc,char** args) {
    kvm_t* kd;

    // Get a handle to libkvm interface
    kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, "error: ");

    pid_t pid;
    pid = getpid();

    struct kinfo_proc * kp;
    int p_count;

    // Get the kinfo_proc for this process by its pid
    kp = kvm_getprocs(kd, KERN_PROC_PROC, 0, &p_count);
    for (int x = 0; x < p_count; x++) {
    	printf("%d\n", kp[x].ki_pid);
    }

    printf("got %i kinfo_proc for pid %i\n", p_count, pid);

    time_t proc_start_time;
    proc_start_time = kp->ki_start.tv_sec;
    kvm_close(kd);

    printf("Process started at %s\n", ctime(&proc_start_time));
    return 0;
}