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355ccf2a1d
freebsd-ports/sysutils/asmon/files/patch-ab
Kris Kennaway 84c2baf4ad Drop privileges before executing user commands. 
Chase the checksum and remove (temporarily) the second MASTER_SITE. The
distfile from the second site (which has the old md5 sum) has no content
differences but it's 9 bytes longer.

Submitted by:	jedgar
2000-01-30 02:34:31 +00:00

491 lines
12 KiB
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--- asmon/asmon.c.orig Sun Jun 27 15:38:26 1999
+++ asmon/asmon.c Wed Dec 29 21:08:33 1999
@@ -21,6 +21,19 @@
#include "asmon-master.xpm"
#include "asmon-mask.xbm"
+#ifdef __FreeBSD__
+#include <err.h>
+#include <kvm.h>
+#include <nlist.h>
+#include <sys/rlist.h>
+#include <sys/conf.h>
+#include <sys/user.h>
+#include <sys/vmmeter.h>
+#include <sys/sysctl.h>
+#include <vm/vm_param.h>
+#include <sys/time.h>
+#endif
+
#ifdef __solaris__
#include <utmp.h>
#endif
@@ -47,6 +60,39 @@
#define B_RED (1)
#define B_GREEN (2)
+#ifdef __FreeBSD__
+kvm_t *kd;
+
+#define SVAR(var) __STRING(var) /* to force expansion */
+#define KGET(idx, var) \
+ KGET1(idx, &var, sizeof(var), SVAR(var))
+#define KGET1(idx, p, s, msg) \
+ KGET2(nl[idx].n_value, p, s, msg)
+#define KGET2(addr, p, s, msg) \
+ if (kvm_read(kd, (u_long)(addr), p, s) != s) \
+ warnx("cannot read %s: %s", msg, kvm_geterr(kd))
+
+struct nlist nl[] = {
+#define VM_SWAPLIST 0
+ { "_swaplist" },/* list of free swap areas */
+#define VM_SWDEVT 1
+ { "_swdevt" }, /* list of swap devices and sizes */
+#define VM_NSWAP 2
+ { "_nswap" }, /* size of largest swap device */
+#define VM_NSWDEV 3
+ { "_nswdev" }, /* number of swap devices */
+#define VM_DMMAX 4
+ { "_dmmax" }, /* maximum size of a swap block */
+#define X_CNT 5
+ { "_cnt" },
+#define X_BUFSPACE 6
+ { "_bufspace" }, /* K in buffer cache */
+#define X_CP_TIME 7
+ { "_cp_time" },
+ { "" }
+};
+#endif
+
/* Evil globals I haven't removed yet */
long last_pageins=0, last_pageouts=0;
long last_swapins=0, last_swapouts=0;
@@ -77,6 +123,11 @@
float DrawMemSwap(float total, int allmem);
#endif
+#ifdef __FreeBSD__
+void open_kvm(void);
+void close_kvm(void);
+#endif
+
int main(int argc, char *argv[])
{
FILE *fp;
@@ -151,7 +202,17 @@
#endif
/* Open 64x64 window */
openXwindow(argc, argv, asmon_master_xpm, asmon_mask_bits, asmon_mask_width, asmon_mask_height);
+
+#ifdef __FreeBSD__
+ open_kvm();
+#endif
+
asmon_routine(Xpid, allmem);
+
+#ifdef __FreeBSD__
+ close_kvm();
+#endif
+
return(0);
}
@@ -160,7 +221,11 @@
void usage(void) {
fprintf(stderr, "\nasmon %s - by Brad Hall (brad@rio.dhs.org)\n\t\toriginally based on Timecop's wmcpu\n\n", ASMON_VERSION);
fprintf(stderr, "The top bar: left is the CPU usage, right is the load average\n");
+#ifdef __FreeBSD__
+ fprintf(stderr, "The middle bar: left memory usage devided by ticks into active, inactive,\n\t\twired, cached + buffers, respectively, and the number\n\t\tof megs used\n");
+#else
fprintf(stderr, "The middle bar: left memory usage devided by ticks into shared, buffers, and\n\t\t cached, respectively, and the number of megs used\n");
+#endif
fprintf(stderr, "The lower bar: the left swap usage and the number of megs swappedd avg\n");
fprintf(stderr, "The bottom: the left is a set of LED's marking page's and swap's, the right is\n\t\t a bar representing the amount of memory that the X server \n\t\t is taking up, and the exact megs\n\n usage:\n");
fprintf(stderr, "\t-display <display name>\n");
@@ -168,8 +233,13 @@
fprintf(stderr, "\t-v\tprint the version number\n");
#ifndef __solaris__
fprintf(stderr, "\t-u\tforce asmon to show uptime, rather than X mem use\n");
+#else
+#ifdef __FreeBSD__
+ fprintf(stderr, "\t-m\tmake asmon show only active mem\n");
+#else
fprintf(stderr, "\t-m\tmake asmon show only shared mem, like most other mem meters\n");
#endif
+#endif
#ifdef EXEC_ON_CLICK
fprintf(stderr, "\t-e cmd\texecute 'cmd' on mouse click\n");
#endif
@@ -229,6 +299,10 @@
#if 0
fprintf(stderr,"system(%s)\n",Command);
#endif
+ if (setgid(getgid()) != 0)
+ err(1, "Can't drop setgid privileges.");
+ if (setuid(getuid()) != 0)
+ err(1, "Can't drop setuid privileges.");
if (Command[ 0 ]) system(Command);
break;
#endif
@@ -323,12 +397,13 @@
/* CPU Usage Meter */
void DrawCPU(void)
{
- FILE *fp;
static float cpustat[4]; /* remember the statistics read last time */
float fields[4], info[4], cputotal=0.0;
long pageins=0, pageouts=0, swapins=0, swapouts=0;
- char buf[128];
int i;
+#ifndef __FreeBSD__
+ char buf[128];
+ FILE *fp;
if( (fp = fopen("/proc/stat", "r")) != NULL)
{
@@ -345,7 +420,15 @@
sscanf(buf, "swap %ld %ld", &swapins, &swapouts);
}
fclose(fp);
-
+#else
+ {
+ long cputime[4];
+ struct vmmeter sum;
+
+ kvm_read(kd, nl[X_CP_TIME].n_value, &cputime, sizeof(cputime));
+ for(i = 0; i < 4; i++)
+ info[i] = (float)cputime[i];
+#endif
// Calculate CPU stuff
for(i = 0; i < 4; i++)
{
@@ -365,6 +448,13 @@
}
// Page In/Out
+#ifdef __FreeBSD__
+ KGET(X_CNT, sum);
+ pageins = sum.v_vnodepgsin;
+ pageouts = sum.v_vnodepgsout;
+ swapins = sum.v_swappgsin;
+ swapouts = sum.v_swappgsout;
+#endif
if (pageins > last_pageins)
{
DrawLite(B_RED, 5, 48);
@@ -414,12 +504,19 @@
#ifdef __solaris__
if (getLoad(&ftmp) != -1)
{
-#else
+#else
+#ifndef __FreeBSD__
FILE *fp;
if( (fp = fopen("/proc/loadavg", "r")) != NULL)
{
fscanf(fp, "%f", &ftmp);
fclose(fp);
+#else
+ {
+ double avg[1];
+ getloadavg(avg, 1);
+ ftmp = (float)avg[0];
+#endif
#endif
if(oldv != ftmp)
{
@@ -540,6 +637,7 @@
/* Mem/Swap Meter */
float DrawMemSwap(float total, int allmem)
{
+#ifndef __FreeBSD__
FILE *fp;
if( (fp = fopen("/proc/meminfo", "r")) != NULL)
{
@@ -553,6 +651,112 @@
fgets(junk, 80, fp);
fscanf(fp, "Mem: %f %f %f %f %f %f\nSwap: %f %f %f", &total, &used, &freeM, &shared, &buffers, &cached, &swaptotal, &swapused, &swapfreeM);
fclose(fp);
+#else
+ {
+ static float stotal=0.0, sshared=0.0, sbuffers=0.0, scached=0.0;
+ float used, active, inactive, wired, buffers, cached, swaptotal,
+ swapused, shared;
+ unsigned long MEMactive,MEMinactive,MEMwired,MEMbuff,MEMcach, MEMswap;
+ int tempy, tempa;
+ int nswap, nswdev, dmmax;
+ int i, avail, nfree, kmemused, bufspace = 0;
+ struct swdevt *sw;
+ long *perdev;
+ struct vmmeter sum;
+ struct rlist head;
+ struct rlisthdr swaplist;
+ struct rlist *swapptr;
+ u_long ptr;
+
+ KGET(VM_NSWAP, nswap);
+ KGET(VM_NSWDEV, nswdev);
+ KGET(VM_DMMAX, dmmax);
+ KGET1(VM_SWAPLIST, &swaplist, sizeof swaplist, "swaplist");
+ if ((sw = (struct swdevt*)malloc(nswdev * sizeof(*sw))) == NULL ||
+ (perdev = (long *)malloc(nswdev * sizeof(*perdev))) == NULL)
+ errx(1, "malloc");
+ KGET1(VM_SWDEVT, &ptr, sizeof ptr, "swdevt");
+ KGET2(ptr, sw, nswdev * sizeof(*sw), "*swdevt");
+
+ /* Count up swap space. */
+ nfree = 0;
+ memset(perdev, 0, nswdev * sizeof(*perdev));
+ swapptr = swaplist.rlh_list;
+ while (swapptr) {
+ int top, bottom, next_block;
+
+ KGET2(swapptr, &head, sizeof(struct rlist), "swapptr");
+
+ top = head.rl_end;
+ bottom = head.rl_start;
+
+ nfree += top - bottom + 1;
+
+ /*
+ * Swap space is split up among the configured disks.
+ *
+ * For interleaved swap devices, the first dmmax blocks
+ * of swap space some from the first disk, the next dmmax
+ * blocks from the next, and so on up to nswap blocks.
+ *
+ * The list of free space joins adjacent free blocks,
+ * ignoring device boundries. If we want to keep track
+ * of this information per device, we'll just have to
+ * extract it ourselves.
+ */
+ while (top / dmmax != bottom / dmmax) {
+ next_block = ((bottom + dmmax) / dmmax);
+ perdev[(bottom / dmmax) % nswdev] +=
+ next_block * dmmax - bottom;
+ bottom = next_block * dmmax;
+ }
+ perdev[(bottom / dmmax) % nswdev] +=
+ top - bottom + 1;
+
+ swapptr = head.rl_next;
+ }
+
+ avail = 0;
+ for (i = 0; i < nswdev; i++) {
+ int xsize, xfree;
+
+ /*
+ * Don't report statistics for partitions which have not
+ * yet been activated via swapon(8).
+ */
+ if (!(sw[i].sw_flags & SW_FREED))
+ continue;
+
+ /* The first dmmax is never allocated to avoid trashing of
+ * disklabels
+ */
+ xsize = sw[i].sw_nblks - dmmax;
+ xfree = perdev[i];
+ kmemused = xsize - xfree;
+ avail += xsize;
+ }
+
+ /*
+ * If only one partition has been set up via swapon(8), we don't
+ * need to bother with totals.
+ */
+ kmemused = avail - nfree;
+ KGET(X_CNT, sum);
+ KGET(X_BUFSPACE, bufspace);
+ free(sw);
+ free(perdev);
+
+ total = sum.v_page_size * sum.v_page_count;
+ cached = sum.v_page_size * sum.v_cache_count;
+ used = sum.v_page_size * (sum.v_page_count - sum.v_free_count);
+ buffers = bufspace;
+ active = sum.v_page_size * sum.v_active_count;
+ inactive = sum.v_page_size * sum.v_inactive_count;
+ wired = sum.v_page_size * sum.v_wire_count;
+
+ swaptotal = avail * 512;
+ swapused = kmemused * 512;
+#endif
if ( allmem == 1) {
/* All mem areas */
@@ -561,11 +765,23 @@
stotal = total; sshared = shared; sbuffers = buffers; scached = cached;
if ( (total/101048576) >= 1)
{
+#ifdef __FreeBSD__
+ MEMactive=(active/total)*27;
+ MEMinactive=(inactive/total)*27;
+ MEMwired=(wired/total)*27;
+#else
MEMshar=(shared/total)*27;
+#endif
MEMbuff=(buffers/total)*27;
MEMcach=(cached/total)*27;
} else {
+#ifdef __FreeBSD__
+ MEMactive=(active/total)*33;
+ MEMinactive=(inactive/total)*33;
+ MEMwired=(wired/total)*33;
+#else
MEMshar=(shared/total)*33;
+#endif
MEMbuff=(buffers/total)*33;
MEMcach=(cached/total)*33;
}
@@ -579,9 +795,15 @@
copyXPMArea(3,75,((used/total)*34),9,5,19);
}
// Separators
+#ifdef __FreeBSD__
+ copyXPMArea(15,105,1,9,5+MEMactive,19);
+ copyXPMArea(15,105,1,9,6+MEMactive+MEMinactive,19);
+ copyXPMArea(15,105,1,9,7+MEMactive+MEMinactive+MEMwired,19);
+#else
copyXPMArea(15,105,1,9,5+MEMshar,19);
copyXPMArea(15,105,1,9,7+MEMshar+MEMbuff,19);
copyXPMArea(15,105,(36-(used/total)*34),9,(5+(used/total)*34),19);
+#endif
// Numbers
tempa=used/1048576;
tempy=tempa%10;
@@ -601,6 +823,16 @@
if(stotal != total || sshared != shared)
{
stotal = total; sshared = shared; sbuffers = buffers; scached = cached;
+#ifdef __FreeBSD__
+ if ( (total/101048576) >= 1) {
+ MEMactive=(active/total)*27;
+ } else {
+ MEMactive=(active/total)*35;
+ }
+ // Bar
+ copyXPMArea(3,75,MEMactive,9,5,19);
+ copyXPMArea(3,102,(36-(active/total)*36),9,(5+(active/total)*36),19) ;
+#else
if ( (total/101048576) >= 1) {
MEMshar=(shared/total)*27;
} else {
@@ -609,8 +841,13 @@
// Bar
copyXPMArea(3,75,MEMshar,9,5,19);
copyXPMArea(15,105,(36-(shared/total)*36),9,(5+(shared/total)*36),19);
+#endif
// Numbers
+#ifdef __FreeBSD__
+ tempa=active/1048576;
+#else
tempa=shared/1048576;
+#endif
tempy=tempa%10;
copyXPMArea(3+(tempy*6),66,6,9,50,19);
tempy=(tempa/10)%10;
@@ -662,10 +899,11 @@
/* X Mem Usage */
void DrawXmem(int Xpid, float total)
{
- FILE *fp;
- char buf[128], XFileName[256];
float ratio;
long old_Xsize=-1, Xsize=0;
+#ifndef __FreeBSD__
+ FILE *fp;
+ char buf[128], XFileName[256];
sprintf(XFileName, "/proc/%d/status", Xpid);
@@ -676,6 +914,15 @@
if (strstr(buf, "VmSize"))
sscanf(buf, "VmSize: %ld", &Xsize);
}
+#else
+ {
+ struct kinfo_proc *kproc;
+ int kcnt;
+
+ kproc = kvm_getprocs(kd, KERN_PROC_PID, Xpid, &kcnt);
+
+ Xsize = kproc->kp_eproc.e_vm.vm_map.size / 1024;
+#endif
if(old_Xsize!=Xsize)
{
int tempy, tempa;
@@ -692,7 +939,9 @@
copyXPMArea(3,84,((ratio)*22),11,18,47);
copyXPMArea(15,105,(23-((ratio)*22)),11,(18+(ratio*22)),47);
}
+#ifndef __FreeBSD__
fclose(fp);
+#endif
}
}
@@ -713,10 +962,28 @@
pUtmp = getutid(&idUtmp);
upt = (time(0) - pUtmp->ut_time);
#else
+#ifndef __FreeBSD__
FILE *fp;
if( (fp = fopen("/proc/uptime", "r")) != NULL)
fscanf(fp, "%d",&upt);
fclose(fp);
+#else
+ int mib[2];
+ struct timeval boottime;
+ size_t bt_size;
+
+ bt_size = sizeof(boottime);
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_BOOTTIME;
+
+ if (sysctl(mib, 2, &boottime, &bt_size, NULL, 0) != -1 &&
+ boottime.tv_sec != 0) {
+ upt = time(NULL) - boottime.tv_sec;
+ upt += 30; /* top(1) does this ???? */
+ } else {
+ upt = 0;
+ }
+#endif
#endif
mins=(upt/60)%60;
hours=(upt/3600)%24;
@@ -777,6 +1044,31 @@
break;
}
+}
+
+void
+open_kvm()
+{
+ if (kd == 0) {
+ kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, 0);
+ if (kd != NULL) {
+ if (kvm_nlist(kd, nl) < 0) {
+ errx(1, "kvm_nlist: %s", kvm_geterr(kd));
+ }
+ if (nl[0].n_type == 0) {
+ errx(1, "no namelist");
+ }
+ } else {
+ warnx("kvm not available");
+ }
+ }
+}
+
+void
+close_kvm()
+{
+ kvm_close(kd);
+ kd = NULL;
}
/* EOF */
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