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#include <sys/utsname.h> |
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#include <sys/types.h> |
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#include <utmp.h> |
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#include <sys/dkstat.h> |
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#include <kvm.h> |
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#include <unistd.h> |
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#include <sys/sysctl.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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|
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uid_t uid; |
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uid_t euid; |
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gid_t gid; |
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gid_t egid; |
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|
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void die(){ |
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exit(1); |
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} |
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|
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printf("\npacket.users.count %d\n",numusers); |
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|
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} |
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|
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void systemStats(){ |
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|
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long cp_time[CPUSTATES]; |
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long total, user, idle, kernel, nice; |
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long totalmem, freemem, swaptotal, swapused; |
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|
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static char *cpname = "kern.cp_time"; |
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static char *tmemname = "hw.physmem"; |
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static char *fmemname = "vm.stats.vm.v_free_count"; |
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int pagesize=-1; |
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size_t size; |
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|
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kvm_t *kvmd = NULL; |
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struct kvm_swap swapinfo; |
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char errbuf[_POSIX2_LINE_MAX]; |
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|
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if (sysctlbyname(cpname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
|
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if (size != sizeof cp_time){ |
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errf("bailing out, trying to write into something to small"); |
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die(); |
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} |
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|
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if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
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errf("Failed to get cpu stats (%m)"); |
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die(); |
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} |
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|
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user=cp_time[CP_USER]; |
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nice=cp_time[CP_NICE]; |
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kernel=cp_time[CP_SYS]; |
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idle=cp_time[CP_IDLE]; |
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|
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sleep(1); |
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|
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if (sysctlbyname(cpname, &cp_time, &size, NULL, NULL) < 0){ |
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errf("Failed to get cpu stats (%m)"); |
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die(); |
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} |
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|
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user-=cp_time[CP_USER]; |
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nice-=cp_time[CP_NICE]; |
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kernel-=cp_time[CP_SYS]; |
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idle-=cp_time[CP_IDLE]; |
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|
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total=user+nice+kernel+idle; |
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|
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printf("packet.cpu.user %ld\n",((user+nice)*100)/total); |
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printf("packet.cpu.kernel %ld\n",(kernel*100)/total); |
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printf("packet.cpu.idle %ld\n",(idle*100)/total); |
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|
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/* Cos i-scream's expects this to be sent :/ */ |
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printf("packet.cpu.iowait 0\n"); |
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printf("packet.cpu.swap 0\n"); |
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|
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/* MEMORY STATS */ |
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pagesize=getpagesize(); |
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if (pagesize==-1){ |
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errf("Failed to get pagesize (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(tmemname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(tmemname, &totalmem, &size, NULL, NULL) < 0){ |
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errf("Failed to get memory stats (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(fmemname, NULL, &size, NULL, NULL) < 0){ |
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errf("sysctlbyname (%m)"); |
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die(); |
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} |
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|
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if (sysctlbyname(fmemname, &freemem, &size, NULL, NULL) < 0){ |
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errf("Failed to get memory stats (%m)"); |
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die(); |
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} |
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|
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totalmem/=(1024*1024); |
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freemem=(freemem*pagesize)/(1024*1024); |
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|
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printf("packet.memory.total %ld\n", totalmem); |
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printf("packet.memory.free %ld\n", freemem); |
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printf("packet.memory.used %ld\n", (totalmem-freemem)); |
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|
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/* Swap stats */ |
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|
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/* Get sufficent privilages to do this */ |
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if (gid!=egid){ |
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/* Means we are setgid something, hopefully kmem :) */ |
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if ((setegid(egid)) != 0){ |
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errf("Failed to gain sufficent privilages (%m)"); |
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die(); |
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} |
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} |
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|
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kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf); |
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if (kvmd == NULL){ |
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errf("Failed to open kvm info to get swap stats (%m)"); |
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die(); |
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} |
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|
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/* Lose are setgid'ness */ |
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|
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if ((setegid(gid)) != 0){ |
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errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
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die(); |
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} |
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|
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|
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/* ok, just for proof of concept atm, ideally this will need to handle more |
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than one swap device */ |
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|
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if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){ |
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errf("Failed to get swap info (%m)"); |
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die(); |
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} |
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|
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swaptotal=((((long)swapinfo.ksw_total)*pagesize)/1024)/1024; |
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swapused=((((long)swapinfo.ksw_used)*pagesize)/1024)/1024; |
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|
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printf("packet.swap.total %ld\n" , swaptotal); |
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printf("packet.swap.used %ld\n", swapused); |
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printf("packet.swap.free %lu\n", (swaptotal-swapused)); |
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|
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} |
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|
|
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void processStats(){ |
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int sleeping=-1; |
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int zombie=0; |
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int stopped=0; |
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int running=0; |
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char *line; |
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char *line_p; |
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|
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FILE *f; |
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|
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if((f=popen("/bin/ps -ax" , "r")) == NULL) { |
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errf("Failed to get process stats (%m)"); |
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die(); |
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} |
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|
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while((line=fpgetline(f)) != NULL) { |
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line_p=line; |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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line_p=strchr(line_p, ' '); |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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line_p=strchr(line_p, ' '); |
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for(; (*line_p == ' ') && (*line_p != '\0'); line_p++); |
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if (line_p==NULL) abort(); |
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|
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if (*line_p=='S') sleeping++; |
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if (*line_p=='I') sleeping++; |
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if (*line_p=='R') running++; |
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if (*line_p=='D') running++; |
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if (*line_p=='Z') zombie++; |
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if (*line_p=='T') stopped++; |
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if (*line_p=='J') running++; |
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|
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} |
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|
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if((pclose(f)) != 0) { |
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errf("Failed to close process stats (%m)"); |
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die(); |
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} |
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|
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printf("packet.processes.sleeping %d\n",sleeping); |
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printf("packet.processes.cpu %d\n",running); |
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printf("packet.processes.zombie %d\n",zombie); |
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printf("packet.processes.stopped %d\n", stopped); |
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printf("packet.processes.total %d\n", (sleeping+running+zombie+stopped)); |
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|
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|
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} |
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+ |
|
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|
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|
int main(){ |
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+ |
uid=getuid(); |
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+ |
euid=geteuid(); |
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+ |
gid=getgid(); |
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egid=getegid(); |
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|
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/* We dont want to run with more permissions than we need, until we need em */ |
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+ |
if ((setegid(gid)) != 0){ |
| 301 |
+ |
errf("Failed to release permissions, refusing to keep setgid. (%m)"); |
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+ |
die(); |
| 303 |
+ |
} |
| 304 |
+ |
|
| 305 |
+ |
if ((seteuid(uid)) != 0){ |
| 306 |
+ |
errf("Failed to release permissions, refusing to keep setuid. (%m)"); |
| 307 |
+ |
die(); |
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+ |
} |
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+ |
|
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|
diskStats(); |
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|
osStats(); |
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|
loadStats(); |
| 313 |
|
userStats(); |
| 314 |
+ |
systemStats(); |
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+ |
processStats(); |
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|
exit(0); |
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|
} |