Merge remote-tracking branch 'upstream/master' into envscreen

19 files changed, 484 insertions, 126 deletions

diff --git a/IncSet.c b/IncSet.c
index 2b1ad392..93be6b3a 100644
--- a/IncSet.c
+++ b/IncSet.c
@@ -169,6 +169,8 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
             IncMode_reset(mode);
          }
       }
+   } else if (ch == KEY_RESIZE) {
+     Panel_resize(panel, COLS, LINES-panel->y-1);
    } else {
       if (mode->isFilter) {
          filterChanged = true;
diff --git a/MainPanel.c b/MainPanel.c
index 2e91a3c5..336cfa46 100644
--- a/MainPanel.c
+++ b/MainPanel.c
@@ -91,7 +91,7 @@ static HandlerResult MainPanel_eventHandler(Panel* super, int ch) {
       result = HANDLED;
    } else if (ch == 27) {
       return HANDLED;
-   } else if (ch != ERR && this->keys[ch]) {
+   } else if (ch != ERR && ch > 0 && ch < KEY_MAX && this->keys[ch]) {
       reaction |= (this->keys[ch])(this->state);
       result = HANDLED;
    } else if (isdigit(ch)) {
diff --git a/MetersPanel.c b/MetersPanel.c
index db910fb9..bdbe83ee 100644
--- a/MetersPanel.c
+++ b/MetersPanel.c
@@ -36,7 +36,7 @@ static const char* MetersKeys[] = {"Space", "Enter", "Del", "Esc"};
 static int MetersEvents[] = {' ', 13, KEY_DC, 27};
 
 static const char* MetersMovingFunctions[] = {"Up    ", "Down  ", "Left  ", "Right ",  "Confirm", "Delete", "Done  ", NULL};
-static const char* MetersMovingKeys[] = {"Up", "Dn", "Lt", "Rt", "Arrows", "Enter", "Del", "Esc"};
+static const char* MetersMovingKeys[] = {"Up", "Dn", "Lt", "Rt", "Enter", "Del", "Esc"};
 static int MetersMovingEvents[] = {KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, 13, KEY_DC, 27};
 static FunctionBar* Meters_movingBar = NULL;
 
diff --git a/Process.c b/Process.c
index 4999bfcb..8046daf1 100644
--- a/Process.c
+++ b/Process.c
@@ -513,8 +513,11 @@ void Process_toggleTag(Process* this) {
 }
 
 bool Process_setPriority(Process* this, int priority) {
+   uid_t euid = geteuid();
+   seteuid(getuid());
    int old_prio = getpriority(PRIO_PROCESS, this->pid);
    int err = setpriority(PRIO_PROCESS, this->pid, priority);
+   seteuid(euid);
    if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
       this->nice = priority;
    }
@@ -526,7 +529,10 @@ bool Process_changePriorityBy(Process* this, size_t delta) {
 }
 
 void Process_sendSignal(Process* this, size_t sgn) {
+   uid_t euid = geteuid();
+   seteuid(getuid());
    kill(this->pid, (int) sgn);
+   seteuid(euid);
 }
 
 long Process_pidCompare(const void* v1, const void* v2) {
diff --git a/Settings.c b/Settings.c
index 65e49bfc..8eb5bbd7 100644
--- a/Settings.c
+++ b/Settings.c
@@ -154,7 +154,12 @@ static void readFields(ProcessField* fields, int* flags, const char* line) {
 }
 
 static bool Settings_read(Settings* this, const char* fileName) {
-   FILE* fd = fopen(fileName, "r");
+   FILE* fd;
+   uid_t euid = geteuid();
+
+   seteuid(getuid());
+   fd = fopen(fileName, "r");
+   seteuid(euid);
    if (!fd)
       return false;
    
@@ -260,7 +265,11 @@ static void writeMeterModes(Settings* this, FILE* fd, int column) {
 
 bool Settings_write(Settings* this) {
    FILE* fd;
+   uid_t euid = geteuid();
+
+   seteuid(getuid());
    fd = fopen(this->filename, "w");
+   seteuid(euid);
    if (fd == NULL) {
       return false;
    }
@@ -345,6 +354,8 @@ Settings* Settings_new(int cpuCount) {
          htopDir = String_cat(home, "/.config/htop");
       }
       legacyDotfile = String_cat(home, "/.htoprc");
+      uid_t euid = geteuid();
+      seteuid(getuid());
       (void) mkdir(configDir, 0700);
       (void) mkdir(htopDir, 0700);
       free(htopDir);
@@ -357,6 +368,7 @@ Settings* Settings_new(int cpuCount) {
          free(legacyDotfile);
          legacyDotfile = NULL;
       }
+      seteuid(euid);
    }
    this->colorScheme = 0;
    this->changed = false;
diff --git a/TraceScreen.c b/TraceScreen.c
index ecd0c0ab..3a62eb63 100644
--- a/TraceScreen.c
+++ b/TraceScreen.c
@@ -86,6 +86,7 @@ void TraceScreen_run(TraceScreen* this) {
    int child = fork();
    if (child == -1) return;
    if (child == 0) {
+      seteuid(getuid());
       dup2(fdpair[1], STDERR_FILENO);
       int ok = fcntl(fdpair[1], F_SETFL, O_NONBLOCK);
       if (ok != -1) {
diff --git a/configure.ac b/configure.ac
index 80180486..424e80ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,7 +103,7 @@ if test "x$enable_proc" = xyes; then
    AC_DEFINE(HAVE_PROC, 1, [Define if using a Linux-compatible proc filesystem.])
 fi
 
-AC_ARG_WITH(proc, [  --with-proc=DIR      Location of a Linux-compatible proc filesystem (default=/proc).],
+AC_ARG_WITH(proc, [AC_HELP_STRING([--with-proc=DIR], [Location of a Linux-compatible proc filesystem (default=/proc).])],
 
 if test -n "$withval"; then
    AC_DEFINE_UNQUOTED(PROCDIR, "$withval", [Path of proc filesystem])
@@ -144,40 +144,59 @@ if test "x$enable_taskstats" = xyes; then
     AC_DEFINE(HAVE_TASKSTATS, 1, [Define if taskstats support enabled.])
 fi
 
-# HTOP_CHECK_NCURSES_LIBRARY(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
-m4_define([HTOP_CHECK_NCURSES_LIBRARY],
+# HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
+m4_define([HTOP_CHECK_SCRIPT],
+[
+   htop_config_script=$([$4] --libs 2> /dev/null)
+   htop_script_success=no
+   htop_save_LDFLAGS="$LDFLAGS"
+   if test ! "x$htop_config_script" = x; then
+      LDFLAGS="$htop_config_script $LDFLAGS"
+      AC_CHECK_LIB([$1], [$2], [
+         AC_DEFINE([$3], 1, [The library is present.])
+         LIBS="$htop_config_script $LIBS "
+         htop_script_success=yes
+      ], [])
+      LDFLAGS="$save_LDFLAGS"
+   fi
+   if test "x$htop_script_success" = xno; then
+      [$5]
+   fi
+])
+
+# HTOP_CHECK_LIB(LIBNAME, FUNCTION, DEFINE, ELSE_PART)
+m4_define([HTOP_CHECK_LIB],
 [
    AC_CHECK_LIB([$1], [$2], [
       AC_DEFINE([$3], 1, [The library is present.])
-      config_script=$([$4] --libs 2> /dev/null)
-      if test ! "x$config_script" = x; then
-         LIBS="$config_script $LIBS "
-      else
-         LIBS="-l[$1] $LIBS "
-      fi
-   ], [$5])
+      LIBS="-l[$1] $LIBS "
+   ], [$4])
 ])
 
 AC_ARG_ENABLE(unicode, [AC_HELP_STRING([--enable-unicode], [enable Unicode support])], ,enable_unicode="yes")
 if test "x$enable_unicode" = xyes; then
-   HTOP_CHECK_NCURSES_LIBRARY([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw6-config", [
-      HTOP_CHECK_NCURSES_LIBRARY([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw5-config", [
-         HTOP_CHECK_NCURSES_LIBRARY([ncurses], [addnwstr], [HAVE_LIBNCURSES], "ncurses5-config", [
-            missing_libraries="$missing_libraries libncursesw"
-            AC_MSG_ERROR([You may want to use --disable-unicode or install libncursesw.])
-         ])
-      ])
-   ])
+   HTOP_CHECK_SCRIPT([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
+    HTOP_CHECK_SCRIPT([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw5-config",
+     HTOP_CHECK_SCRIPT([ncurses], [addnwstr], [HAVE_LIBNCURSESW], "ncurses5-config",
+      HTOP_CHECK_LIB([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW],
+       HTOP_CHECK_LIB([ncursesw], [addnwstr], [HAVE_LIBNCURSESW],
+        HTOP_CHECK_LIB([ncurses], [addnwstr], [HAVE_LIBNCURSESW],
+      missing_libraries="$missing_libraries libncursesw"
+      AC_MSG_ERROR([You may want to use --disable-unicode or install libncursesw.])
+   ))))))
+
    AC_CHECK_HEADERS([ncursesw/curses.h],[:],
       [AC_CHECK_HEADERS([ncurses/ncurses.h],[:],
          [AC_CHECK_HEADERS([ncurses/curses.h],[:],
             [AC_CHECK_HEADERS([ncurses.h],[:],[missing_headers="$missing_headers $ac_header"])])])])
 else
-   HTOP_CHECK_NCURSES_LIBRARY([ncurses6], [refresh], [HAVE_LIBNCURSES], "ncurses6-config", [
-      HTOP_CHECK_NCURSES_LIBRARY([ncurses], [refresh], [HAVE_LIBNCURSES], "ncurses5-config", [
-         missing_libraries="$missing_libraries libncurses"
-      ])
-   ])
+   HTOP_CHECK_SCRIPT([ncurses6], [refresh], [HAVE_LIBNCURSES], "ncurses6-config",
+    HTOP_CHECK_SCRIPT([ncurses], [refresh], [HAVE_LIBNCURSES], "ncurses5-config",
+     HTOP_CHECK_LIB([ncurses6],  [refresh], [HAVE_LIBNCURSES],
+      HTOP_CHECK_LIB([ncurses],  [refresh], [HAVE_LIBNCURSES],
+      missing_libraries="$missing_libraries libncurses"
+   ))))
+   
    AC_CHECK_HEADERS([curses.h],[:],
       [AC_CHECK_HEADERS([ncurses/curses.h],[:],
          [AC_CHECK_HEADERS([ncurses/ncurses.h],[:],
diff --git a/darwin/DarwinCRT.c b/darwin/DarwinCRT.c
index 3efb18a7..51725984 100644
--- a/darwin/DarwinCRT.c
+++ b/darwin/DarwinCRT.c
@@ -28,7 +28,7 @@ void CRT_handleSIGSEGV(int sgn) {
    #endif
    #else
    fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
    #endif
    abort();
 }
diff --git a/freebsd/FreeBSDCRT.c b/freebsd/FreeBSDCRT.c
index c4e65eeb..5c3a9de4 100644
--- a/freebsd/FreeBSDCRT.c
+++ b/freebsd/FreeBSDCRT.c
@@ -15,7 +15,7 @@ void CRT_handleSIGSEGV(int sgn) {
    CRT_done();
    fprintf(stderr, "\n\nhtop " VERSION " aborting.\n");
    fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
    abort();
 }
 
diff --git a/freebsd/FreeBSDProcessList.c b/freebsd/FreeBSDProcessList.c
index f1b7a191..66e8321a 100644
--- a/freebsd/FreeBSDProcessList.c
+++ b/freebsd/FreeBSDProcessList.c
@@ -23,53 +23,160 @@ in the source distribution for its full text.
 #include <sys/param.h>
 #include <sys/jail.h>
 #include <sys/uio.h>
+#include <sys/resource.h>
 
 #define JAIL_ERRMSGLEN	1024
 char jail_errmsg[JAIL_ERRMSGLEN];
 
 typedef struct CPUData_ {
-   unsigned long long int totalTime;
-   unsigned long long int totalPeriod;
+
+   double userPercent;
+   double nicePercent;
+   double systemPercent;
+   double irqPercent;
+   double idlePercent;
+   double systemAllPercent;
+
 } CPUData;
 
 typedef struct FreeBSDProcessList_ {
    ProcessList super;
    kvm_t* kd;
 
+   int zfsArcEnabled;
+
+   unsigned long long int memWire;
+   unsigned long long int memActive;
+   unsigned long long int memInactive;
+   unsigned long long int memFree;
+   unsigned long long int memZfsArc;
+
+
    CPUData* cpus;
 
+   unsigned long   *cp_time_o;
+   unsigned long   *cp_time_n;
+
+   unsigned long  *cp_times_o;
+   unsigned long  *cp_times_n;
+
 } FreeBSDProcessList;
 
 }*/
 
+
+static int MIB_hw_physmem[2];
+static int MIB_vm_stats_vm_v_page_count[4];
+static int pageSize;
+static int pageSizeKb;
+
 static int MIB_vm_stats_vm_v_wire_count[4];
+static int MIB_vm_stats_vm_v_active_count[4];
 static int MIB_vm_stats_vm_v_cache_count[4];
-static int MIB_hw_physmem[2];
+static int MIB_vm_stats_vm_v_inactive_count[4];
+static int MIB_vm_stats_vm_v_free_count[4];
+
+static int MIB_vfs_bufspace[2];
+
+static int MIB_kstat_zfs_misc_arcstats_size[5];
+
+static int MIB_kern_cp_time[2];
+static int MIB_kern_cp_times[2];
+static int kernelFScale;
 
-static int pageSizeKb;
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
    FreeBSDProcessList* fpl = calloc(1, sizeof(FreeBSDProcessList));
    ProcessList* pl = (ProcessList*) fpl;
    ProcessList_init(pl, Class(FreeBSDProcess), usersTable, pidWhiteList, userId);
 
+   size_t len;
+
+   // physical memory in system: hw.physmem
+   // physical page size: hw.pagesize
+   // usable pagesize : vm.stats.vm.v_page_size
+   len = 2; sysctlnametomib("hw.physmem", MIB_hw_physmem, &len);
+
+   len = sizeof(pageSize);
+   if (sysctlbyname("vm.stats.vm.v_page_size", &pageSize, &len, NULL, 0) == -1) {
+      pageSize = PAGE_SIZE;
+      pageSizeKb = PAGE_SIZE_KB;
+   } else {
+      pageSizeKb = pageSize / ONE_K;
+   }
+
+   // usable page count vm.stats.vm.v_page_count
+   // actually usable memory : vm.stats.vm.v_page_count * vm.stats.vm.v_page_size
+   len = 4; sysctlnametomib("vm.stats.vm.v_page_count", MIB_vm_stats_vm_v_page_count, &len);
+
+   len = 4; sysctlnametomib("vm.stats.vm.v_wire_count", MIB_vm_stats_vm_v_wire_count, &len);
+   len = 4; sysctlnametomib("vm.stats.vm.v_active_count", MIB_vm_stats_vm_v_active_count, &len);
+   len = 4; sysctlnametomib("vm.stats.vm.v_cache_count", MIB_vm_stats_vm_v_cache_count, &len);
+   len = 4; sysctlnametomib("vm.stats.vm.v_inactive_count", MIB_vm_stats_vm_v_inactive_count, &len);
+   len = 4; sysctlnametomib("vm.stats.vm.v_free_count", MIB_vm_stats_vm_v_free_count, &len);
+
+   len = 2; sysctlnametomib("vfs.bufspace", MIB_vfs_bufspace, &len);
+
+   len = sizeof(fpl->memZfsArc);
+   if (sysctlbyname("kstat.zfs.misc.arcstats.size", &fpl->memZfsArc, &len,
+	    NULL, 0) == 0 && fpl->memZfsArc != 0) {
+      sysctlnametomib("kstat.zfs.misc.arcstats.size", MIB_kstat_zfs_misc_arcstats_size, &len);
+		  fpl->zfsArcEnabled = 1;
+   } else {
+		  fpl->zfsArcEnabled = 0;
+   }
+
+
+   int smp = 0;
+   len = sizeof(smp);
+
+   if (sysctlbyname("kern.smp.active", &smp, &len, NULL, 0) != 0 || len != sizeof(smp)) {
+      smp = 0;
+   }
+
    int cpus = 1;
-   size_t sizeof_cpus = sizeof(cpus);
-   int err = sysctlbyname("hw.ncpu", &cpus, &sizeof_cpus, NULL, 0);
-   if (err) cpus = 1;
+   len = sizeof(cpus);
+
+   if (smp) {
+      int err = sysctlbyname("kern.smp.cpus", &cpus, &len, NULL, 0);
+      if (err) cpus = 1;
+   } else {
+      cpus = 1;
+   }
+
+   size_t sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES;
+   len = 2; sysctlnametomib("kern.cp_time", MIB_kern_cp_time, &len);
+   fpl->cp_time_o = calloc(cpus, sizeof_cp_time_array);
+   fpl->cp_time_n = calloc(cpus, sizeof_cp_time_array);
+   len = sizeof_cp_time_array;
+
+   // fetch intial single (or average) CPU clicks from kernel
+   sysctl(MIB_kern_cp_time, 2, fpl->cp_time_o, &len, NULL, 0);
+
+   // on smp box, fetch rest of intial CPU's clicks
+   if (cpus > 1) {
+      len = 2; sysctlnametomib("kern.cp_times", MIB_kern_cp_times, &len);
+      fpl->cp_times_o = calloc(cpus, sizeof_cp_time_array);
+      fpl->cp_times_n = calloc(cpus, sizeof_cp_time_array);
+      len = cpus * sizeof_cp_time_array;
+      sysctl(MIB_kern_cp_times, 2, fpl->cp_times_o, &len, NULL, 0);
+   }
+
    pl->cpuCount = MAX(cpus, 1);
-   fpl->cpus = realloc(fpl->cpus, cpus * sizeof(CPUData));
 
-   for (int i = 0; i < cpus; i++) {
-      fpl->cpus[i].totalTime = 1;
-      fpl->cpus[i].totalPeriod = 1;
+   if (cpus == 1 ) {
+     fpl->cpus = realloc(fpl->cpus, sizeof(CPUData));
+   } else {
+     // on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well)
+     fpl->cpus = realloc(fpl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
    }
 
-   size_t len;
-   len = 4; sysctlnametomib("vm.stats.vm.v_wire_count",  MIB_vm_stats_vm_v_wire_count, &len);
-   len = 4; sysctlnametomib("vm.stats.vm.v_cache_count", MIB_vm_stats_vm_v_cache_count, &len);
-   len = 2; sysctlnametomib("hw.physmem",                MIB_hw_physmem, &len);
-   pageSizeKb = PAGE_SIZE_KB;
+
+   len = sizeof(kernelFScale);
+   if (sysctlbyname("kern.fscale", &kernelFScale, &len, NULL, 0) == -1) {
+      //sane default for kernel provded CPU precentage scaling, at least on x86 machines, in case this sysctl call failed
+      kernelFScale = 2048;
+   }
 
    fpl->kd = kvm_open(NULL, "/dev/null", NULL, 0, NULL);
    assert(fpl->kd);
@@ -81,22 +188,150 @@ void ProcessList_delete(ProcessList* this) {
    const FreeBSDProcessList* fpl = (FreeBSDProcessList*) this;
    if (fpl->kd) kvm_close(fpl->kd);
 
+   free(fpl->cp_time_o);
+   free(fpl->cp_time_n);
+   free(fpl->cp_times_o);
+   free(fpl->cp_times_n);
+   free(fpl->cpus);
+
    ProcessList_done(this);
    free(this);
 }
 
-static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
+static inline void FreeBSDProcessList_scanCPUTime(ProcessList* pl) {
    const FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
 
+   int cpus   = pl->cpuCount;   // actual CPU count
+   int maxcpu = cpus;           // max iteration (in case we have average + smp)
+   int cp_times_offset;
+
+   assert(cpus > 0);
+
+   size_t sizeof_cp_time_array;
+
+   unsigned long     *cp_time_n; // old clicks state
+   unsigned long     *cp_time_o; // current clicks state
+
+   unsigned long long total_o = 0;
+   unsigned long long total_n = 0;
+   unsigned long long total_d = 0;
+   unsigned long cp_time_d[CPUSTATES];
+   double        cp_time_p[CPUSTATES];
+
+   // get averages or single CPU clicks
+   sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES;
+   sysctl(MIB_kern_cp_time, 2, fpl->cp_time_n, &sizeof_cp_time_array, NULL, 0);
+
+   // get rest of CPUs
+   if (cpus > 1) {
+       // on smp systems FreeBSD kernel concats all CPU states into one long array in
+       // kern.cp_times sysctl OID
+       // we store averages in fpl->cpus[0], and actual cores after that
+       maxcpu = cpus + 1;
+       sizeof_cp_time_array = cpus * sizeof(unsigned long) * CPUSTATES;
+       sysctl(MIB_kern_cp_times, 2, fpl->cp_times_n, &sizeof_cp_time_array, NULL, 0);
+   }
+
+   for (int i = 0; i < maxcpu; i++) {
+      if (cpus == 1) {
+         // single CPU box
+         cp_time_n = fpl->cp_time_n;
+         cp_time_o = fpl->cp_time_o;
+      } else {
+         if (i == 0 ) {
+           // average
+           cp_time_n = fpl->cp_time_n;
+           cp_time_o = fpl->cp_time_o;
+         } else {
+           // specific smp cores
+           cp_times_offset = i - 1;
+           cp_time_n = fpl->cp_times_n + (cp_times_offset * CPUSTATES);
+           cp_time_o = fpl->cp_times_o + (cp_times_offset * CPUSTATES);
+         }
+      }
+
+      // diff old vs new
+      for (int s = 0; s < CPUSTATES; s++) {
+        cp_time_d[s] = cp_time_n[s] - cp_time_o[s];
+        total_o += cp_time_o[s];
+        total_n += cp_time_n[s];
+      }
+
+      // totals
+      total_d = total_n - total_o;
+      if (total_d < 1 ) total_d = 1;
+
+      // save current state as old and calc percentages
+      for (int s = 0; s < CPUSTATES; ++s) {
+        cp_time_o[s] = cp_time_n[s];
+        cp_time_p[s] = ((double)cp_time_d[s]) / ((double)total_d) * 100;
+      }
+
+      CPUData* cpuData = &(fpl->cpus[i]);
+      cpuData->userPercent      = cp_time_p[CP_USER];
+      cpuData->nicePercent      = cp_time_p[CP_NICE];
+      cpuData->systemPercent    = cp_time_p[CP_SYS];
+      cpuData->irqPercent       = cp_time_p[CP_INTR];
+      cpuData->systemAllPercent = cp_time_p[CP_SYS] + cp_time_p[CP_INTR];
+      // this one is not really used, but we store it anyway
+      cpuData->idlePercent      = cp_time_p[CP_IDLE];
+   }
+}
+
+static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
+   FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
+
+   // @etosan:
+   // memory counter relationships seem to be these:
+   //  total = active + wired + inactive + cache + free
+   //  htop_used (unavail to anybody) = active + wired
+   //  htop_cache (for cache meter)   = buffers + cache
+   //  user_free (avail to procs)     = buffers + inactive + cache + free
+   //
+   // with ZFS ARC situation becomes bit muddled, as ARC behaves like "user_free"
+   // and belongs into cache, but is reported as wired by kernel
+   //
+   // htop_used   = active + (wired - arc)
+   // htop_cache  = buffers + cache + arc
    size_t len = sizeof(pl->totalMem);
+
+   //disabled for now, as it is always smaller than phycal amount of memory...
+   //...to avoid "where is my memory?" questions
+   //sysctl(MIB_vm_stats_vm_v_page_count, 4, &(pl->totalMem), &len, NULL, 0);
+   //pl->totalMem *= pageSizeKb;
    sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
    pl->totalMem /= 1024;
-   sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(pl->usedMem), &len, NULL, 0);
-   pl->usedMem *= pageSizeKb;
-   pl->freeMem = pl->totalMem - pl->usedMem;
+
+   sysctl(MIB_vm_stats_vm_v_active_count, 4, &(fpl->memActive), &len, NULL, 0);
+   fpl->memActive *= pageSizeKb;
+
+   sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(fpl->memWire), &len, NULL, 0);
+   fpl->memWire *= pageSizeKb;
+
+   sysctl(MIB_vfs_bufspace, 2, &(pl->buffersMem), &len, NULL, 0);
+   pl->buffersMem /= 1024;
+
    sysctl(MIB_vm_stats_vm_v_cache_count, 4, &(pl->cachedMem), &len, NULL, 0);
    pl->cachedMem *= pageSizeKb;
 
+   if (fpl->zfsArcEnabled) {
+      len = sizeof(fpl->memZfsArc);
+      sysctl(MIB_kstat_zfs_misc_arcstats_size, 5, &(fpl->memZfsArc), &len , NULL, 0);
+      fpl->memZfsArc /= 1024;
+      fpl->memWire -= fpl->memZfsArc;
+      pl->cachedMem += fpl->memZfsArc;
+      // maybe when we learn how to make custom memory meter
+      // we could do custom arc breakdown?
+   }
+
+   pl->usedMem = fpl->memActive + fpl->memWire;
+
+   //currently unused, same as with arc, custom meter perhaps
+   //sysctl(MIB_vm_stats_vm_v_inactive_count, 4, &(fpl->memInactive), &len, NULL, 0);
+   //sysctl(MIB_vm_stats_vm_v_free_count, 4, &(fpl->memFree), &len, NULL, 0);
+   //pl->freeMem  = fpl->memInactive + fpl->memFree;
+   //pl->freeMem *= pageSizeKb;
+
    struct kvm_swap swap[16];
    int nswap = kvm_getswapinfo(fpl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
    pl->totalSwap = 0;
@@ -109,7 +344,6 @@ static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->usedSwap *= pageSizeKb;
 
    pl->sharedMem = 0;  // currently unused
-   pl->buffersMem = 0; // not exposed to userspace
 }
 
 char* FreeBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd) {
@@ -186,20 +420,21 @@ void ProcessList_goThroughEntries(ProcessList* this) {
    bool hideUserlandThreads = settings->hideUserlandThreads;
 
    FreeBSDProcessList_scanMemoryInfo(this);
+   FreeBSDProcessList_scanCPUTime(this);
 
+   int cpus = this->cpuCount;
    int count = 0;
    struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, &count);
 
    for (int i = 0; i < count; i++) {
       struct kinfo_proc* kproc = &kprocs[i];
-
       bool preExisting = false;
+      bool isIdleProcess = false;
       Process* proc = ProcessList_getProcess(this, kproc->ki_pid, &preExisting, (Process_New) FreeBSDProcess_new);
       FreeBSDProcess* fp = (FreeBSDProcess*) proc;
 
       proc->show = ! ((hideKernelThreads && Process_isKernelThread(fp)) || (hideUserlandThreads && Process_isUserlandThread(proc)));
 
-
       if (!preExisting) {
          fp->jid = kproc->ki_jid;
          proc->pid = kproc->ki_pid;
@@ -207,6 +442,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
            fp->kernel = 1;
          else
            fp->kernel = 0;
+         proc->ppid = kproc->ki_ppid;
          proc->tpgid = kproc->ki_tpgid;
          proc->tgid = kproc->ki_pid;
          proc->session = kproc->ki_sid;
@@ -220,27 +456,51 @@ void ProcessList_goThroughEntries(ProcessList* this) {
          fp->jname = FreeBSDProcessList_readJailName(kproc);
       } else {
          if(fp->jid != kproc->ki_jid) {
+            // proces can enter jail anytime
             fp->jid = kproc->ki_jid;
             free(fp->jname);
             fp->jname = FreeBSDProcessList_readJailName(kproc);
          }
+         if (proc->ppid != kproc->ki_ppid) {
+            // if there are reapers in the system, proces can get reparented anytime
+            proc->ppid = kproc->ki_ppid;
+         }
+         if(proc->st_uid != kproc->ki_uid) {
+            // some proceses change users (eg. to lower privs)
+            proc->st_uid = kproc->ki_uid;
+            proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
+         }
          if (settings->updateProcessNames) {
             free(proc->comm);
             proc->comm = FreeBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
          }
       }
 
-      proc->ppid = kproc->ki_ppid;
-
-      proc->m_size = kproc->ki_size / pageSizeKb / 1000;
-      proc->m_resident = kproc->ki_rssize; // * pageSizeKb;
+      // from FreeBSD source /src/usr.bin/top/machine.c
+      proc->m_size = kproc->ki_size / 1024;
+      proc->m_resident = kproc->ki_rssize * pageSizeKb;
       proc->nlwp = kproc->ki_numthreads;
       proc->time = (kproc->ki_runtime + 5000) / 10000;
 
+      proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)kernelFScale);
+      if (proc->percent_cpu > 0.1) {
+         // system idle process should own all CPU time left regardless of CPU count
+         if ( strcmp("idle", kproc->ki_comm) == 0 ) {
+            isIdleProcess = true;
+         } else {
+            if (cpus > 1)
+               proc->percent_cpu = proc->percent_cpu / (double) cpus;
+         }
+      }
+      if (isIdleProcess == false && proc->percent_cpu >= 99.8) {
+         // don't break formatting
+         proc->percent_cpu = 99.8;
+      }
+
       proc->priority = kproc->ki_pri.pri_level - PZERO;
 
       if (strcmp("intr", kproc->ki_comm) == 0 && kproc->ki_flag & P_SYSTEM) {
-         proc->nice = 0; //@etosan: freebsd intr kernel process (not thread) has weird nice value
+         proc->nice = 0; //@etosan: intr kernel process (not thread) has weird nice value
       } else if (kproc->ki_pri.pri_class == PRI_TIMESHARE) {
          proc->nice = kproc->ki_nice - NZERO;
       } else if (PRI_IS_REALTIME(kproc->ki_pri.pri_class)) {
@@ -249,7 +509,6 @@ void ProcessList_goThroughEntries(ProcessList* this) {
          proc->nice = PRIO_MAX + 1 + kproc->ki_pri.pri_level - PRI_MIN_IDLE;
       }
 
-
       switch (kproc->ki_stat) {
       case SIDL:   proc->state = 'I'; break;
       case SRUN:   proc->state = 'R'; break;
diff --git a/freebsd/Platform.c b/freebsd/Platform.c
index 46bef992..a5e0e0b3 100644
--- a/freebsd/Platform.c
+++ b/freebsd/Platform.c
@@ -16,6 +16,7 @@ in the source distribution for its full text.
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
 #include "FreeBSDProcess.h"
+#include "FreeBSDProcessList.h"
 
 #include <sys/types.h>
 #include <sys/sysctl.h>
@@ -105,7 +106,7 @@ int Platform_getUptime() {
    struct timeval bootTime, currTime;
    int mib[2] = { CTL_KERN, KERN_BOOTTIME };
    size_t size = sizeof(bootTime);
-   
+
    int err = sysctl(mib, 2, &bootTime, &size, NULL, 0);
    if (err) {
       return -1;
@@ -119,7 +120,7 @@ void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
    struct loadavg loadAverage;
    int mib[2] = { CTL_VM, VM_LOADAVG };
    size_t size = sizeof(loadAverage);
-   
+
    int err = sysctl(mib, 2, &loadAverage, &size, NULL, 0);
    if (err) {
       *one = 0;
@@ -143,15 +144,52 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   // TODO
+   FreeBSDProcessList* fpl = (FreeBSDProcessList*) this->pl;
+   int cpus = this->pl->cpuCount;
+   CPUData* cpuData;
+
+   if (cpus == 1) {
+     // single CPU box has everything in fpl->cpus[0]
+     cpuData = &(fpl->cpus[0]);
+   } else {
+     cpuData = &(fpl->cpus[cpu]);
+   }
+
+   double  percent;
+   double* v = this->values;
+
+   v[CPU_METER_NICE]   = cpuData->nicePercent;
+   v[CPU_METER_NORMAL] = cpuData->userPercent;
+   if (this->pl->settings->detailedCPUTime) {
+      v[CPU_METER_KERNEL]  = cpuData->systemPercent;
+      v[CPU_METER_IRQ]     = cpuData->irqPercent;
+      Meter_setItems(this, 4);
+      percent = v[0]+v[1]+v[2]+v[3];
+   } else {
+      v[2] = cpuData->systemAllPercent;
+      Meter_setItems(this, 3);
+      percent = v[0]+v[1]+v[2];
+   }
+
+   percent = MIN(100.0, MAX(0.0, percent));
+   if (isnan(percent)) percent = 0.0;
+   return percent;
 }
 
 void Platform_setMemoryValues(Meter* this) {
    // TODO
+   ProcessList* pl = (ProcessList*) this->pl;
+
+   this->total = pl->totalMem;
+   this->values[0] = pl->usedMem;
+   this->values[1] = pl->buffersMem;
+   this->values[2] = pl->cachedMem;
 }
 
 void Platform_setSwapValues(Meter* this) {
-   // TODO
+   ProcessList* pl = (ProcessList*) this->pl;
+   this->total = pl->totalSwap;
+   this->values[0] = pl->usedSwap;
 }
 
 void Platform_setTasksValues(Meter* this) {
diff --git a/htop.c b/htop.c
index f5fe6db2..e8cdc75b 100644
--- a/htop.c
+++ b/htop.c
@@ -44,7 +44,7 @@ static void printHelpFlag() {
          "-s --sort-key=COLUMN        Sort by COLUMN (try --sort-key=help for a list)\n"
          "-u --user=USERNAME          Show only processes of a given user\n"
          "-p --pid=PID,[,PID,PID...]  Show only the given PIDs\n"
-         "-v --version          Print version info\n"
+         "-v --version                Print version info\n"
          "\n"
          "Long options may be passed with a single dash.\n\n"
          "Press F1 inside htop for online help.\n"
diff --git a/linux/LinuxCRT.c b/linux/LinuxCRT.c
index e0a12821..5b2a21fd 100644
--- a/linux/LinuxCRT.c
+++ b/linux/LinuxCRT.c
@@ -30,7 +30,7 @@ void CRT_handleSIGSEGV(int sgn) {
    #endif
    #else
    fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
    #endif
    abort();
 }
diff --git a/linux/LinuxProcessList.c b/linux/LinuxProcessList.c
index e939b4a9..9387dbd4 100644
--- a/linux/LinuxProcessList.c
+++ b/linux/LinuxProcessList.c
@@ -78,6 +78,10 @@ typedef struct LinuxProcessList_ {
 #define PROCMEMINFOFILE PROCDIR "/meminfo"
 #endif
 
+#ifndef PROC_LINE_LENGTH
+#define PROC_LINE_LENGTH 512
+#endif
+
 }*/
    
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
@@ -90,11 +94,11 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
    if (file == NULL) {
       CRT_fatalError("Cannot open " PROCSTATFILE);
    }
-   char buffer[256];
+   char buffer[PROC_LINE_LENGTH + 1];
    int cpus = -1;
    do {
       cpus++;
-      char * s = fgets(buffer, 255, file);
+      char * s = fgets(buffer, PROC_LINE_LENGTH, file);
       (void) s;
    } while (String_startsWith(buffer, "cpu"));
    fclose(file);
@@ -306,8 +310,8 @@ static bool LinuxProcessList_readStatmFile(LinuxProcess* process, const char* di
    int fd = open(filename, O_RDONLY);
    if (fd == -1)
       return false;
-   char buf[256];
-   ssize_t rres = xread(fd, buf, 255);
+   char buf[PROC_LINE_LENGTH + 1];
+   ssize_t rres = xread(fd, buf, PROC_LINE_LENGTH);
    close(fd);
    if (rres < 1) return false;
 
@@ -361,13 +365,13 @@ static void LinuxProcessList_readCGroupFile(LinuxProcess* process, const char* d
       process->cgroup = strdup("");
       return;
    }
-   char output[256];
+   char output[PROC_LINE_LENGTH + 1];
    output[0] = '\0';
    char* at = output;
-   int left = 255;
+   int left = PROC_LINE_LENGTH;
    while (!feof(file) && left > 0) {
-      char buffer[256];
-      char *ok = fgets(buffer, 255, file);
+      char buffer[PROC_LINE_LENGTH + 1];
+      char *ok = fgets(buffer, PROC_LINE_LENGTH, file);
       if (!ok) break;
       char* group = strchr(buffer, ':');
       if (!group) break;
@@ -394,9 +398,9 @@ static void LinuxProcessList_readVServerData(LinuxProcess* process, const char*
    FILE* file = fopen(filename, "r");
    if (!file)
       return;
-   char buffer[256];
+   char buffer[PROC_LINE_LENGTH + 1];
    process->vxid = 0;
-   while (fgets(buffer, 255, file)) {
+   while (fgets(buffer, PROC_LINE_LENGTH, file)) {
       if (String_startsWith(buffer, "VxID:")) {
          int vxid;
          int ok = sscanf(buffer, "VxID:\t%32d", &vxid);
@@ -425,8 +429,8 @@ static void LinuxProcessList_readOomData(LinuxProcess* process, const char* dirn
    FILE* file = fopen(filename, "r");
    if (!file)
       return;
-   char buffer[256];
-   if (fgets(buffer, 255, file)) {
+   char buffer[PROC_LINE_LENGTH + 1];
+   if (fgets(buffer, PROC_LINE_LENGTH, file)) {
       unsigned int oom;
       int ok = sscanf(buffer, "%32u", &oom);
       if (ok >= 1) {
@@ -677,14 +681,14 @@ static inline double LinuxProcessList_scanCPUTime(LinuxProcessList* this) {
    int cpus = this->super.cpuCount;
    assert(cpus > 0);
    for (int i = 0; i <= cpus; i++) {
-      char buffer[256];
+      char buffer[PROC_LINE_LENGTH + 1];
       unsigned long long int usertime, nicetime, systemtime, idletime;
       unsigned long long int ioWait, irq, softIrq, steal, guest, guestnice;
       ioWait = irq = softIrq = steal = guest = guestnice = 0;
       // Depending on your kernel version,
       // 5, 7, 8 or 9 of these fields will be set.
       // The rest will remain at zero.
-      char* ok = fgets(buffer, 255, file);
+      char* ok = fgets(buffer, PROC_LINE_LENGTH, file);
       if (!ok) buffer[0] = '\0';
       if (i == 0)
          sscanf(buffer,   "cpu  %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu",         &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
diff --git a/linux/LinuxProcessList.h b/linux/LinuxProcessList.h
index 538d98cb..2a4abff9 100644
--- a/linux/LinuxProcessList.h
+++ b/linux/LinuxProcessList.h
@@ -59,6 +59,10 @@ typedef struct LinuxProcessList_ {
 #define PROCMEMINFOFILE PROCDIR "/meminfo"
 #endif
 
+#ifndef PROC_LINE_LENGTH
+#define PROC_LINE_LENGTH 512
+#endif
+
    
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId);
 
diff --git a/openbsd/OpenBSDCRT.c b/openbsd/OpenBSDCRT.c
index 552ca30d..c5dcec4a 100644
--- a/openbsd/OpenBSDCRT.c
+++ b/openbsd/OpenBSDCRT.c
@@ -16,7 +16,7 @@ void CRT_handleSIGSEGV(int sgn) {
    CRT_done();
    fprintf(stderr, "\n\nhtop " VERSION " aborting.\n");
    fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
    abort();
 }
 
diff --git a/openbsd/OpenBSDProcessList.c b/openbsd/OpenBSDProcessList.c
index 210328aa..6da38efc 100644
--- a/openbsd/OpenBSDProcessList.c
+++ b/openbsd/OpenBSDProcessList.c
@@ -12,6 +12,7 @@ in the source distribution for its full text.
 
 #include <unistd.h>
 #include <stdlib.h>
+#include <err.h>
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/param.h>
@@ -47,37 +48,41 @@ static long fscale;
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
    int mib[] = { CTL_HW, HW_NCPU };
    int fmib[] = { CTL_KERN, KERN_FSCALE };
-   int i;
-   OpenBSDProcessList* fpl = calloc(1, sizeof(OpenBSDProcessList));
-   ProcessList* pl = (ProcessList*) fpl;
+   int i, e;
+   OpenBSDProcessList* opl = calloc(1, sizeof(OpenBSDProcessList));
+   ProcessList* pl = (ProcessList*) opl;
    size_t size = sizeof(pl->cpuCount);
 
    ProcessList_init(pl, Class(OpenBSDProcess), usersTable, pidWhiteList, userId);
-   pl->cpuCount = 1;    // default to 1 on sysctl() error
-   (void)sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0);
-   fpl->cpus = realloc(fpl->cpus, pl->cpuCount * sizeof(CPUData));
+   e = sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0);
+   if (e == -1 || pl->cpuCount < 1) {
+      pl->cpuCount = 1;
+   }
+   opl->cpus = realloc(opl->cpus, pl->cpuCount * sizeof(CPUData));
 
    size = sizeof(fscale);
    if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0)
-     CRT_fatalError("fscale sysctl call failed");
+      err(1, "fscale sysctl call failed");
 
    for (i = 0; i < pl->cpuCount; i++) {
-      fpl->cpus[i].totalTime = 1;
-      fpl->cpus[i].totalPeriod = 1;
+      opl->cpus[i].totalTime = 1;
+      opl->cpus[i].totalPeriod = 1;
    }
 
    pageSizeKb = PAGE_SIZE_KB;
 
    // XXX: last arg should eventually be an errbuf
-   fpl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
-   assert(fpl->kd);
+   opl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+   assert(opl->kd);
 
    return pl;
 }
 
 void ProcessList_delete(ProcessList* this) {
-   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
-   if (fpl->kd) kvm_close(fpl->kd);
+   const OpenBSDProcessList* opl = (OpenBSDProcessList*) this;
+   if (opl->kd) kvm_close(opl->kd);
+
+   free(opl->cpus);
 
    ProcessList_done(this);
    free(this);
@@ -89,7 +94,7 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    size_t size = sizeof(uvmexp);
 
    if (sysctl(uvmexp_mib, 2, &uvmexp, &size, NULL, 0) < 0) {
-      CRT_fatalError("uvmexp sysctl call failed");
+      err(1, "uvmexp sysctl call failed");
    }
 
    //kb_pagesize = uvmexp.pagesize / 1024;
@@ -97,7 +102,7 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->totalMem = uvmexp.npages * pageSizeKb;
 
    /*
-   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) pl;
+   const OpenBSDProcessList* opl = (OpenBSDProcessList*) pl;
 
    size_t len = sizeof(pl->totalMem);
    sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
@@ -109,7 +114,7 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->cachedMem *= pageSizeKb;
 
    struct kvm_swap swap[16];
-   int nswap = kvm_getswapinfo(fpl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
+   int nswap = kvm_getswapinfo(opl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
    pl->totalSwap = 0;
    pl->usedSwap = 0;
    for (int i = 0; i < nswap; i++) {
@@ -125,34 +130,41 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
 }
 
 char *OpenBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd) {
-   char *str, *buf, **argv;
-   size_t cpsz;
-   size_t len = 500;
-
-   argv = kvm_getargv(kd, kproc, 500);
-
-   if (argv == NULL)
-      CRT_fatalError("kvm call failed");
-
-   str = buf = malloc(len+1);
-   if (str == NULL)
-      CRT_fatalError("out of memory");
-
-   while (*argv != NULL) {
-      cpsz = MIN(len, strlen(*argv));
-      strncpy(buf, *argv, cpsz);
-     buf += cpsz;
-     len -= cpsz;
-     argv++;
-     if (len > 0) {
-        *buf = ' ';
-        buf++;
-        len--;
-     }
-   }
+   char *s, *buf, **arg;
+   size_t cpsz, len = 0, n;
+   int i;
 
-   *buf = '\0';
-   return str;
+   /*
+    * We attempt to fall back to just the command name (argv[0]) if we
+    * fail to construct the full command at any point.
+    */
+   arg = kvm_getargv(kd, kproc, 500);
+   if (arg == NULL) {
+      if ((s = strdup(kproc->p_comm)) == NULL) {
+         err(1, NULL);
+      }
+      return s;
+   }
+   for (i = 0; arg[i] != NULL; i++) {
+      len += strlen(arg[i]) + 1;
+   }
+   if ((buf = s = malloc(len)) == NULL) {
+      if ((s = strdup(kproc->p_comm)) == NULL) {
+         err(1, NULL);
+      }
+      return s;
+   }
+   for (i = 0; arg[i] != NULL; i++) {
+      n = strlcpy(buf, arg[i], (s + len) - buf);
+      buf += n;
+      if (i == 0) {
+         *basenameEnd = n;
+      }
+      *buf = ' ';
+      buf++;
+   }
+   *(buf - 1) = '\0';
+   return s;
 }
 
 /*
@@ -168,7 +180,7 @@ double getpcpu(const struct kinfo_proc *kp) {
 }
 
 void ProcessList_goThroughEntries(ProcessList* this) {
-   OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
+   OpenBSDProcessList* opl = (OpenBSDProcessList*) this;
    Settings* settings = this->settings;
    bool hideKernelThreads = settings->hideKernelThreads;
    bool hideUserlandThreads = settings->hideUserlandThreads;
@@ -182,7 +194,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
    OpenBSDProcessList_scanMemoryInfo(this);
 
    // use KERN_PROC_KTHREAD to also include kernel threads
-   struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
+   struct kinfo_proc* kprocs = kvm_getprocs(opl->kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
    //struct kinfo_proc* kprocs = getprocs(KERN_PROC_ALL, 0, &count);
 
    for (i = 0; i < count; i++) {
@@ -206,11 +218,11 @@ void ProcessList_goThroughEntries(ProcessList* this) {
          proc->starttime_ctime = kproc->p_ustart_sec;
          proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
          ProcessList_add((ProcessList*)this, proc);
-         proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+         proc->comm = OpenBSDProcessList_readProcessName(opl->kd, kproc, &proc->basenameOffset);
       } else {
          if (settings->updateProcessNames) {
             free(proc->comm);
-            proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+            proc->comm = OpenBSDProcessList_readProcessName(opl->kd, kproc, &proc->basenameOffset);
          }
       }
 
diff --git a/openbsd/Platform.h b/openbsd/Platform.h
index a59d2ef5..d8dea1b1 100644
--- a/openbsd/Platform.h
+++ b/openbsd/Platform.h
@@ -11,6 +11,7 @@ in the source distribution for its full text.
 */
 
 #include "Action.h"
+#include "SignalsPanel.h"
 #include "BatteryMeter.h"
 
 extern ProcessFieldData Process_fields[];
diff --git a/unsupported/UnsupportedCRT.c b/unsupported/UnsupportedCRT.c
index c4e65eeb..5c3a9de4 100644
--- a/unsupported/UnsupportedCRT.c
+++ b/unsupported/UnsupportedCRT.c
@@ -15,7 +15,7 @@ void CRT_handleSIGSEGV(int sgn) {
    CRT_done();
    fprintf(stderr, "\n\nhtop " VERSION " aborting.\n");
    fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
-   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   fprintf(stderr, "\nPlease contact your platform package maintainer!\n\n");
    abort();
 }