Author: marcel
Date: Fri May 22 23:07:55 2015
New Revision: 283304
URL: https://svnweb.freebsd.org/changeset/base/283304

Log:
  Convert to use libxo. Document use of libxo as well.
  
  Obtained from:  Phil Shafer <p...@juniper.net>
  Sponsored by:   Juniper Networks, Inc.

Modified:
  head/bin/ps/Makefile
  head/bin/ps/keyword.c
  head/bin/ps/print.c
  head/bin/ps/ps.1
  head/bin/ps/ps.c
  head/bin/ps/ps.h

Modified: head/bin/ps/Makefile
==============================================================================
--- head/bin/ps/Makefile        Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/Makefile        Fri May 22 23:07:55 2015        (r283304)
@@ -11,6 +11,6 @@ SRCS= fmt.c keyword.c nlist.c print.c ps
 # on large systems.
 #
 CFLAGS+=-DLAZY_PS
-LIBADD=        m kvm jail
+LIBADD=        m kvm jail xo
 
 .include <bsd.prog.mk>

Modified: head/bin/ps/keyword.c
==============================================================================
--- head/bin/ps/keyword.c       Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/keyword.c       Fri May 22 23:07:55 2015        (r283304)
@@ -47,6 +47,7 @@ __FBSDID("$FreeBSD$");
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <libxo/xo.h>
 
 #include "ps.h"
 
@@ -64,116 +65,170 @@ static int  vcmp(const void *, const voi
 
 /* PLEASE KEEP THE TABLE BELOW SORTED ALPHABETICALLY!!! */
 static VAR var[] = {
-       {"%cpu", "%CPU", NULL, 0, pcpu, 0, CHAR, NULL, 0},
-       {"%mem", "%MEM", NULL, 0, pmem, 0, CHAR, NULL, 0},
-       {"acflag", "ACFLG", NULL, 0, kvar, KOFF(ki_acflag), USHORT, "x", 0},
-       {"acflg", "", "acflag", 0, NULL, 0, CHAR, NULL, 0},
-       {"args", "COMMAND", NULL, COMM|LJUST|USER, arguments, 0,
-               CHAR, NULL, 0},
-       {"blocked", "", "sigmask", 0, NULL, 0, CHAR, NULL, 0},
-       {"caught", "", "sigcatch", 0, NULL, 0, CHAR, NULL, 0},
-       {"class", "CLASS", NULL, LJUST, loginclass, 0, CHAR, NULL, 0},
-       {"comm", "COMMAND", NULL, LJUST, ucomm, 0, CHAR, NULL, 0},
-       {"command", "COMMAND", NULL, COMM|LJUST|USER, command, 0,
-               CHAR, NULL, 0},
-       {"cow", "COW", NULL, 0, kvar, KOFF(ki_cow), UINT, "u", 0},
-       {"cpu", "CPU", NULL, 0, kvar, KOFF(ki_estcpu), UINT, "d", 0},
-       {"cputime", "", "time", 0, NULL, 0, CHAR, NULL, 0},
-       {"dsiz", "DSIZ", NULL, 0, kvar, KOFF(ki_dsize), PGTOK, "ld", 0},
-       {"egid", "", "gid", 0, NULL, 0, CHAR, NULL, 0},
-       {"egroup", "", "group", 0, NULL, 0, CHAR, NULL, 0},
-       {"emul", "EMUL", NULL, LJUST, emulname, 0, CHAR, NULL, 0},
-       {"etime", "ELAPSED", NULL, USER, elapsed, 0, CHAR, NULL, 0},
-       {"etimes", "ELAPSED", NULL, USER, elapseds, 0, CHAR, NULL, 0},
-       {"euid", "", "uid", 0, NULL, 0, CHAR, NULL, 0},
-       {"f", "F", NULL, 0, kvar, KOFF(ki_flag), INT, "x", 0},
-       {"f2", "F2", NULL, 0, kvar, KOFF(ki_flag2), INT, "08x", 0},
-       {"fib", "FIB", NULL, 0, kvar, KOFF(ki_fibnum), INT, "d", 0},
-       {"flags", "", "f", 0, NULL, 0, CHAR, NULL, 0},
-       {"flags2", "", "f2", 0, NULL, 0, CHAR, NULL, 0},
-       {"gid", "GID", NULL, 0, kvar, KOFF(ki_groups), UINT, UIDFMT, 0},
-       {"group", "GROUP", NULL, LJUST, egroupname, 0, CHAR, NULL, 0},
-       {"ignored", "", "sigignore", 0, NULL, 0, CHAR, NULL, 0},
-       {"inblk", "INBLK", NULL, USER, rvar, ROFF(ru_inblock), LONG, "ld", 0},
-       {"inblock", "", "inblk", 0, NULL, 0, CHAR, NULL, 0},
-       {"jid", "JID", NULL, 0, kvar, KOFF(ki_jid), INT, "d", 0},
-       {"jobc", "JOBC", NULL, 0, kvar, KOFF(ki_jobc), SHORT, "d", 0},
-       {"ktrace", "KTRACE", NULL, 0, kvar, KOFF(ki_traceflag), INT, "x", 0},
-       {"label", "LABEL", NULL, LJUST, label, 0, CHAR, NULL, 0},
-       {"lim", "LIM", NULL, 0, maxrss, 0, CHAR, NULL, 0},
-       {"lockname", "LOCK", NULL, LJUST, lockname, 0, CHAR, NULL, 0},
-       {"login", "LOGIN", NULL, LJUST, logname, 0, CHAR, NULL, 0},
-       {"logname", "", "login", 0, NULL, 0, CHAR, NULL, 0},
-       {"lstart", "STARTED", NULL, LJUST|USER, lstarted, 0, CHAR, NULL, 0},
-       {"lwp", "LWP", NULL, 0, kvar, KOFF(ki_tid), UINT, LWPFMT, 0},
-       {"majflt", "MAJFLT", NULL, USER, rvar, ROFF(ru_majflt), LONG, "ld", 0},
-       {"minflt", "MINFLT", NULL, USER, rvar, ROFF(ru_minflt), LONG, "ld", 0},
-       {"msgrcv", "MSGRCV", NULL, USER, rvar, ROFF(ru_msgrcv), LONG, "ld", 0},
-       {"msgsnd", "MSGSND", NULL, USER, rvar, ROFF(ru_msgsnd), LONG, "ld", 0},
-       {"mwchan", "MWCHAN", NULL, LJUST, mwchan, 0, CHAR, NULL, 0},
-       {"ni", "", "nice", 0, NULL, 0, CHAR, NULL, 0},
-       {"nice", "NI", NULL, 0, kvar, KOFF(ki_nice), CHAR, "d", 0},
-       {"nivcsw", "NIVCSW", NULL, USER, rvar, ROFF(ru_nivcsw), LONG, "ld", 0},
-       {"nlwp", "NLWP", NULL, 0, kvar, KOFF(ki_numthreads), UINT, NLWPFMT, 0},
-       {"nsignals", "", "nsigs", 0, NULL, 0, CHAR, NULL, 0},
-       {"nsigs", "NSIGS", NULL, USER, rvar, ROFF(ru_nsignals), LONG, "ld", 0},
-       {"nswap", "NSWAP", NULL, USER, rvar, ROFF(ru_nswap), LONG, "ld", 0},
-       {"nvcsw", "NVCSW", NULL, USER, rvar, ROFF(ru_nvcsw), LONG, "ld", 0},
-       {"nwchan", "NWCHAN", NULL, LJUST, nwchan, 0, CHAR, NULL, 0},
-       {"oublk", "OUBLK", NULL, USER, rvar, ROFF(ru_oublock), LONG, "ld", 0},
-       {"oublock", "", "oublk", 0, NULL, 0, CHAR, NULL, 0},
-       {"paddr", "PADDR", NULL, 0, kvar, KOFF(ki_paddr), KPTR, "lx", 0},
-       {"pagein", "PAGEIN", NULL, USER, pagein, 0, CHAR, NULL, 0},
-       {"pcpu", "", "%cpu", 0, NULL, 0, CHAR, NULL, 0},
-       {"pending", "", "sig", 0, NULL, 0, CHAR, NULL, 0},
-       {"pgid", "PGID", NULL, 0, kvar, KOFF(ki_pgid), UINT, PIDFMT, 0},
-       {"pid", "PID", NULL, 0, kvar, KOFF(ki_pid), UINT, PIDFMT, 0},
-       {"pmem", "", "%mem", 0, NULL, 0, CHAR, NULL, 0},
-       {"ppid", "PPID", NULL, 0, kvar, KOFF(ki_ppid), UINT, PIDFMT, 0},
-       {"pri", "PRI", NULL, 0, pri, 0, CHAR, NULL, 0},
-       {"re", "RE", NULL, INF127, kvar, KOFF(ki_swtime), UINT, "d", 0},
-       {"rgid", "RGID", NULL, 0, kvar, KOFF(ki_rgid), UINT, UIDFMT, 0},
-       {"rgroup", "RGROUP", NULL, LJUST, rgroupname, 0, CHAR, NULL, 0},
-       {"rss", "RSS", NULL, 0, kvar, KOFF(ki_rssize), PGTOK, "ld", 0},
-       {"rtprio", "RTPRIO", NULL, 0, priorityr, KOFF(ki_pri), CHAR, NULL, 0},
-       {"ruid", "RUID", NULL, 0, kvar, KOFF(ki_ruid), UINT, UIDFMT, 0},
-       {"ruser", "RUSER", NULL, LJUST, runame, 0, CHAR, NULL, 0},
-       {"sid", "SID", NULL, 0, kvar, KOFF(ki_sid), UINT, PIDFMT, 0},
-       {"sig", "PENDING", NULL, 0, kvar, KOFF(ki_siglist), INT, "x", 0},
-       {"sigcatch", "CAUGHT", NULL, 0, kvar, KOFF(ki_sigcatch), UINT, "x", 0},
-       {"sigignore", "IGNORED", NULL, 0, kvar, KOFF(ki_sigignore),
-               UINT, "x", 0},
-       {"sigmask", "BLOCKED", NULL, 0, kvar, KOFF(ki_sigmask), UINT, "x", 0},
-       {"sl", "SL", NULL, INF127, kvar, KOFF(ki_slptime), UINT, "d", 0},
-       {"ssiz", "SSIZ", NULL, 0, kvar, KOFF(ki_ssize), PGTOK, "ld", 0},
-       {"start", "STARTED", NULL, LJUST|USER, started, 0, CHAR, NULL, 0},
-       {"stat", "", "state", 0, NULL, 0, CHAR, NULL, 0},
-       {"state", "STAT", NULL, LJUST, state, 0, CHAR, NULL, 0},
-       {"svgid", "SVGID", NULL, 0, kvar, KOFF(ki_svgid), UINT, UIDFMT, 0},
-       {"svuid", "SVUID", NULL, 0, kvar, KOFF(ki_svuid), UINT, UIDFMT, 0},
-       {"systime", "SYSTIME", NULL, USER, systime, 0, CHAR, NULL, 0},
-       {"tdaddr", "TDADDR", NULL, 0, kvar, KOFF(ki_tdaddr), KPTR, "lx", 0},
-       {"tdev", "TDEV", NULL, 0, tdev, 0, CHAR, NULL, 0},
-       {"tdnam", "TDNAM", NULL, LJUST, tdnam, 0, CHAR, NULL, 0},
-       {"time", "TIME", NULL, USER, cputime, 0, CHAR, NULL, 0},
-       {"tpgid", "TPGID", NULL, 0, kvar, KOFF(ki_tpgid), UINT, PIDFMT, 0},
-       {"tracer", "TRACER", NULL, 0, kvar, KOFF(ki_tracer), UINT, PIDFMT, 0},
-       {"tsid", "TSID", NULL, 0, kvar, KOFF(ki_tsid), UINT, PIDFMT, 0},
-       {"tsiz", "TSIZ", NULL, 0, kvar, KOFF(ki_tsize), PGTOK, "ld", 0},
-       {"tt", "TT ", NULL, 0, tname, 0, CHAR, NULL, 0},
-       {"tty", "TTY", NULL, LJUST, longtname, 0, CHAR, NULL, 0},
-       {"ucomm", "UCOMM", NULL, LJUST, ucomm, 0, CHAR, NULL, 0},
-       {"uid", "UID", NULL, 0, kvar, KOFF(ki_uid), UINT, UIDFMT, 0},
-       {"upr", "UPR", NULL, 0, upr, 0, CHAR, NULL, 0},
-       {"uprocp", "UPROCP", NULL, 0, kvar, KOFF(ki_paddr), KPTR, "lx", 0},
-       {"user", "USER", NULL, LJUST, uname, 0, CHAR, NULL, 0},
-       {"usertime", "USERTIME", NULL, USER, usertime, 0, CHAR, NULL, 0},
-       {"usrpri", "", "upr", 0, NULL, 0, CHAR, NULL, 0},
-       {"vsize", "", "vsz", 0, NULL, 0, CHAR, NULL, 0},
-       {"vsz", "VSZ", NULL, 0, vsize, 0, CHAR, NULL, 0},
-       {"wchan", "WCHAN", NULL, LJUST, wchan, 0, CHAR, NULL, 0},
-       {"xstat", "XSTAT", NULL, 0, kvar, KOFF(ki_xstat), USHORT, "x", 0},
-       {"", NULL, NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"%cpu", "%CPU", NULL, "percent-cpu", 0, pcpu, 0, CHAR, NULL, 0},
+       {"%mem", "%MEM", NULL, "percent-memory", 0, pmem, 0, CHAR, NULL, 0},
+       {"acflag", "ACFLG", NULL, "accounting-flag", 0, kvar, KOFF(ki_acflag),
+           USHORT, "x", 0},
+       {"acflg", "", "acflag", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"args", "COMMAND", NULL, "arguments", COMM|LJUST|USER, arguments, 0,
+           CHAR, NULL, 0},
+       {"blocked", "", "sigmask", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"caught", "", "sigcatch", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"class", "CLASS", NULL, "login-class", LJUST, loginclass, 0, CHAR,
+           NULL, 0},
+       {"comm", "COMMAND", NULL, "command", LJUST, ucomm, 0, CHAR, NULL, 0},
+       {"command", "COMMAND", NULL, "command", COMM|LJUST|USER, command, 0,
+           CHAR, NULL, 0},
+       {"cow", "COW", NULL, "copy-on-write-faults", 0, kvar, KOFF(ki_cow),
+           UINT, "u", 0},
+       {"cpu", "CPU", NULL, "cpu-usage", 0, kvar, KOFF(ki_estcpu), UINT, "d",
+           0},
+       {"cputime", "", "time", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"dsiz", "DSIZ", NULL, "data-size", 0, kvar, KOFF(ki_dsize), PGTOK,
+           "ld", 0},
+       {"egid", "", "gid", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"egroup", "", "group", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"emul", "EMUL", NULL, "emulation-envirnment", LJUST, emulname, 0,
+           CHAR, NULL, 0},
+       {"etime", "ELAPSED", NULL, "elapsed-time", USER, elapsed, 0, CHAR,
+           NULL, 0},
+       {"etimes", "ELAPSED", NULL, "elapsed-times", USER, elapseds, 0, CHAR,
+           NULL, 0},
+       {"euid", "", "uid", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"f", "F", NULL, "flags", 0, kvar, KOFF(ki_flag), INT, "x", 0},
+       {"f2", "F2", NULL, "flags2", 0, kvar, KOFF(ki_flag2), INT, "08x", 0},
+       {"fib", "FIB", NULL, "fib", 0, kvar, KOFF(ki_fibnum), INT, "d", 0},
+       {"flags", "", "f", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"flags2", "", "f2", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"gid", "GID", NULL, "gid", 0, kvar, KOFF(ki_groups), UINT, UIDFMT, 0},
+       {"group", "GROUP", NULL, "group", LJUST, egroupname, 0, CHAR, NULL, 0},
+       {"ignored", "", "sigignore", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"inblk", "INBLK", NULL, "read-blocks", USER, rvar, ROFF(ru_inblock),
+           LONG, "ld", 0},
+       {"inblock", "", "inblk", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"jid", "JID", NULL, "jail-id", 0, kvar, KOFF(ki_jid), INT, "d", 0},
+       {"jobc", "JOBC", NULL, "job-control-count", 0, kvar, KOFF(ki_jobc),
+           SHORT, "d", 0},
+       {"ktrace", "KTRACE", NULL, "ktrace", 0, kvar, KOFF(ki_traceflag), INT,
+           "x", 0},
+       {"label", "LABEL", NULL, "label", LJUST, label, 0, CHAR, NULL, 0},
+       {"lim", "LIM", NULL, "memory-limit", 0, maxrss, 0, CHAR, NULL, 0},
+       {"lockname", "LOCK", NULL, "lock-name", LJUST, lockname, 0, CHAR, NULL,
+           0},
+       {"login", "LOGIN", NULL, "login-name", LJUST, logname, 0, CHAR, NULL,
+           0},
+       {"logname", "", "login", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"lstart", "STARTED", NULL, "start-time", LJUST|USER, lstarted, 0,
+           CHAR, NULL, 0},
+       {"lwp", "LWP", NULL, "process-thread-id", 0, kvar, KOFF(ki_tid), UINT,
+           LWPFMT, 0},
+       {"majflt", "MAJFLT", NULL, "major-faults", USER, rvar, ROFF(ru_majflt),
+           LONG, "ld", 0},
+       {"minflt", "MINFLT", NULL, "minor-faults", USER, rvar, ROFF(ru_minflt),
+           LONG, "ld", 0},
+       {"msgrcv", "MSGRCV", NULL, "received-messages", USER, rvar,
+           ROFF(ru_msgrcv), LONG, "ld", 0},
+       {"msgsnd", "MSGSND", NULL, "sent-messages", USER, rvar,
+           ROFF(ru_msgsnd), LONG, "ld", 0},
+       {"mwchan", "MWCHAN", NULL, "wait-channel", LJUST, mwchan, 0, CHAR,
+           NULL, 0},
+       {"ni", "", "nice", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"nice", "NI", NULL, "nice", 0, kvar, KOFF(ki_nice), CHAR, "d", 0},
+       {"nivcsw", "NIVCSW", NULL, "involuntary-context-switches", USER, rvar,
+           ROFF(ru_nivcsw), LONG, "ld", 0},
+       {"nlwp", "NLWP", NULL, "threads", 0, kvar, KOFF(ki_numthreads), UINT,
+           NLWPFMT, 0},
+       {"nsignals", "", "nsigs", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"nsigs", "NSIGS", NULL, "signals-taken", USER, rvar,
+           ROFF(ru_nsignals), LONG, "ld", 0},
+       {"nswap", "NSWAP", NULL, "swaps", USER, rvar, ROFF(ru_nswap), LONG,
+           "ld", 0},
+       {"nvcsw", "NVCSW", NULL, "voluntary-context-switches", USER, rvar,
+           ROFF(ru_nvcsw), LONG, "ld", 0},
+       {"nwchan", "NWCHAN", NULL, "wait-channel-address", LJUST, nwchan, 0,
+           CHAR, NULL, 0},
+       {"oublk", "OUBLK", NULL, "written-blocks", USER, rvar,
+           ROFF(ru_oublock), LONG, "ld", 0},
+       {"oublock", "", "oublk", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"paddr", "PADDR", NULL, "process-address", 0, kvar, KOFF(ki_paddr),
+           KPTR, "lx", 0},
+       {"pagein", "PAGEIN", NULL, "pageins", USER, pagein, 0, CHAR, NULL, 0},
+       {"pcpu", "", "%cpu", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"pending", "", "sig", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"pgid", "PGID", NULL, "process-group", 0, kvar, KOFF(ki_pgid), UINT,
+           PIDFMT, 0},
+       {"pid", "PID", NULL, "pid", 0, kvar, KOFF(ki_pid), UINT, PIDFMT, 0},
+       {"pmem", "", "%mem", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"ppid", "PPID", NULL, "ppid", 0, kvar, KOFF(ki_ppid), UINT, PIDFMT, 0},
+       {"pri", "PRI", NULL, "priority", 0, pri, 0, CHAR, NULL, 0},
+       {"re", "RE", NULL, "residency-time", INF127, kvar, KOFF(ki_swtime),
+           UINT, "d", 0},
+       {"rgid", "RGID", NULL, "real-gid", 0, kvar, KOFF(ki_rgid), UINT,
+           UIDFMT, 0},
+       {"rgroup", "RGROUP", NULL, "real-group", LJUST, rgroupname, 0, CHAR,
+           NULL, 0},
+       {"rss", "RSS", NULL, "rss", 0, kvar, KOFF(ki_rssize), PGTOK, "ld", 0},
+       {"rtprio", "RTPRIO", NULL, "realtime-priority", 0, priorityr,
+           KOFF(ki_pri), CHAR, NULL, 0},
+       {"ruid", "RUID", NULL, "real-uid", 0, kvar, KOFF(ki_ruid), UINT,
+           UIDFMT, 0},
+       {"ruser", "RUSER", NULL, "real-user", LJUST, runame, 0, CHAR, NULL, 0},
+       {"sid", "SID", NULL, "sid", 0, kvar, KOFF(ki_sid), UINT, PIDFMT, 0},
+       {"sig", "PENDING", NULL, "signals-pending", 0, kvar, KOFF(ki_siglist),
+           INT, "x", 0},
+       {"sigcatch", "CAUGHT", NULL, "signals-caught", 0, kvar,
+           KOFF(ki_sigcatch), UINT, "x", 0},
+       {"sigignore", "IGNORED", NULL, "signals-ignored", 0, kvar,
+           KOFF(ki_sigignore), UINT, "x", 0},
+       {"sigmask", "BLOCKED", NULL, "signal-mask", 0, kvar, KOFF(ki_sigmask),
+           UINT, "x", 0},
+       {"sl", "SL", NULL, "sleep-time", INF127, kvar, KOFF(ki_slptime), UINT,
+           "d", 0},
+       {"ssiz", "SSIZ", NULL, "stack-size", 0, kvar, KOFF(ki_ssize), PGTOK,
+           "ld", 0},
+       {"start", "STARTED", NULL, "start-time", LJUST|USER, started, 0, CHAR,
+           NULL, 0},
+       {"stat", "", "state", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"state", "STAT", NULL, "state", LJUST, state, 0, CHAR, NULL, 0},
+       {"svgid", "SVGID", NULL, "saved-gid", 0, kvar, KOFF(ki_svgid), UINT,
+           UIDFMT, 0},
+       {"svuid", "SVUID", NULL, "saved-uid", 0, kvar, KOFF(ki_svuid), UINT,
+           UIDFMT, 0},
+       {"systime", "SYSTIME", NULL, "system-time", USER, systime, 0, CHAR,
+           NULL, 0},
+       {"tdaddr", "TDADDR", NULL, "thread-address", 0, kvar, KOFF(ki_tdaddr),
+           KPTR, "lx", 0},
+       {"tdev", "TDEV", NULL, "terminal-device", 0, tdev, 0, CHAR, NULL, 0},
+       {"tdnam", "TDNAM", NULL, "terminal-device-name", LJUST, tdnam, 0, CHAR,
+           NULL, 0},
+       {"time", "TIME", NULL, "cpu-time", USER, cputime, 0, CHAR, NULL, 0},
+       {"tpgid", "TPGID", NULL, "terminal-process-gid", 0, kvar,
+           KOFF(ki_tpgid), UINT, PIDFMT, 0},
+       {"tracer", "TRACER", NULL, "tracer", 0, kvar, KOFF(ki_tracer), UINT,
+           PIDFMT, 0},
+       {"tsid", "TSID", NULL, "terminal-sid", 0, kvar, KOFF(ki_tsid), UINT,
+           PIDFMT, 0},
+       {"tsiz", "TSIZ", NULL, "text-size", 0, kvar, KOFF(ki_tsize), PGTOK,
+           "ld", 0},
+       {"tt", "TT ", NULL, "terminal-name", 0, tname, 0, CHAR, NULL, 0},
+       {"tty", "TTY", NULL, "tty", LJUST, longtname, 0, CHAR, NULL, 0},
+       {"ucomm", "UCOMM", NULL, "accounting-name", LJUST, ucomm, 0, CHAR,
+           NULL, 0},
+       {"uid", "UID", NULL, "uid", 0, kvar, KOFF(ki_uid), UINT, UIDFMT, 0},
+       {"upr", "UPR", NULL, "user-priority", 0, upr, 0, CHAR, NULL, 0},
+       {"uprocp", "UPROCP", NULL, "process-address", 0, kvar, KOFF(ki_paddr),
+           KPTR, "lx", 0},
+       {"user", "USER", NULL, "user", LJUST, uname, 0, CHAR, NULL, 0},
+       {"usertime", "USERTIME", NULL, "user-time", USER, usertime, 0, CHAR,
+           NULL, 0},
+       {"usrpri", "", "upr", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"vsize", "", "vsz", NULL, 0, NULL, 0, CHAR, NULL, 0},
+       {"vsz", "VSZ", NULL, "virtual-size", 0, vsize, 0, CHAR, NULL, 0},
+       {"wchan", "WCHAN", NULL, "wait-channel", LJUST, wchan, 0, CHAR, NULL,
+           0},
+       {"xstat", "XSTAT", NULL, "exit-status", 0, kvar, KOFF(ki_xstat),
+           USHORT, "x", 0},
+       {"", NULL, NULL, NULL, 0, NULL, 0, CHAR, NULL, 0},
 };
 
 void
@@ -185,16 +240,19 @@ showkey(void)
 
        i = 0;
        sep = "";
+       xo_open_list("key");
        for (v = var; *(p = v->name); ++v) {
                int len = strlen(p);
                if (termwidth && (i += len + 1) > termwidth) {
                        i = len;
                        sep = "\n";
                }
-               (void) printf("%s%s", sep, p);
+               xo_emit("{P:/%s}{l:key/%s}", sep, p);
                sep = " ";
        }
-       (void) printf("\n");
+       xo_emit("\n");
+       xo_close_list("key");
+       xo_finish();
 }
 
 void

Modified: head/bin/ps/print.c
==============================================================================
--- head/bin/ps/print.c Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/print.c Fri May 22 23:07:55 2015        (r283304)
@@ -61,6 +61,7 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 #include <unistd.h>
 #include <vis.h>
+#include <libxo/xo.h>
 
 #include "ps.h"
 
@@ -85,15 +86,15 @@ printheader(void)
                v = vent->var;
                if (v->flag & LJUST) {
                        if (STAILQ_NEXT(vent, next_ve) == NULL) /* last one */
-                               (void)printf("%s", vent->header);
+                               xo_emit("{T:/%s}", vent->header);
                        else
-                               (void)printf("%-*s", v->width, vent->header);
+                               xo_emit("{T:/%-*s}", v->width, vent->header);
                } else
-                       (void)printf("%*s", v->width, vent->header);
+                       xo_emit("{T:/%*s}", v->width, vent->header);
                if (STAILQ_NEXT(vent, next_ve) != NULL)
-                       (void)putchar(' ');
+                       xo_emit("{P: }");
        }
-       (void)putchar('\n');
+       xo_emit("\n");
 }
 
 char *
@@ -102,7 +103,7 @@ arguments(KINFO *k, VARENT *ve)
        char *vis_args;
 
        if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
        strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
 
        if (STAILQ_NEXT(ve, next_ve) != NULL && strlen(vis_args) > 
ARGUMENTS_WIDTH)
@@ -130,7 +131,7 @@ command(KINFO *k, VARENT *ve)
                return (str);
        }
        if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
        strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
 
        if (STAILQ_NEXT(ve, next_ve) == NULL) {
@@ -139,7 +140,7 @@ command(KINFO *k, VARENT *ve)
                if (k->ki_env) {
                        if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1))
                            == NULL)
-                               errx(1, "malloc failed");
+                               xo_errx(1, "malloc failed");
                        strvis(vis_env, k->ki_env,
                            VIS_TAB | VIS_NL | VIS_NOSLASH);
                } else
@@ -215,7 +216,7 @@ state(KINFO *k, VARENT *ve __unused)
 
        buf = malloc(16);
        if (buf == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
 
        flag = k->ki_p->ki_flag;
        tdflags = k->ki_p->ki_tdflags;  /* XXXKSE */
@@ -391,7 +392,7 @@ started(KINFO *k, VARENT *ve __unused)
 
        buf = malloc(buflen);
        if (buf == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
 
        then = k->ki_p->ki_start.tv_sec;
        tp = localtime(&then);
@@ -416,7 +417,7 @@ lstarted(KINFO *k, VARENT *ve __unused)
 
        buf = malloc(buflen);
        if (buf == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
 
        then = k->ki_p->ki_start.tv_sec;
        (void)strftime(buf, buflen, "%c", localtime(&then));
@@ -762,7 +763,7 @@ printval(void *bp, VAR *v)
                (void)asprintf(&str, ofmt, ps_pgtok(*(u_long *)bp));
                break;
        default:
-               errx(1, "unknown type %d", v->type);
+               xo_errx(1, "unknown type %d", v->type);
        }
 
        return (str);
@@ -804,7 +805,7 @@ label(KINFO *k, VARENT *ve __unused)
 
        string = NULL;
        if (mac_prepare_process_label(&proclabel) == -1) {
-               warn("mac_prepare_process_label");
+               xo_warn("mac_prepare_process_label");
                goto out;
        }
        error = mac_get_pid(k->ki_p->ki_pid, proclabel);

Modified: head/bin/ps/ps.1
==============================================================================
--- head/bin/ps/ps.1    Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/ps.1    Fri May 22 23:07:55 2015        (r283304)
@@ -29,7 +29,7 @@
 .\"     @(#)ps.1       8.3 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd December 9, 2014
+.Dd May 22, 2015
 .Dt PS 1
 .Os
 .Sh NAME
@@ -37,6 +37,7 @@
 .Nd process status
 .Sh SYNOPSIS
 .Nm
+.Op Fl -libxo
 .Op Fl aCcdefHhjlmrSTuvwXxZ
 .Op Fl O Ar fmt | Fl o Ar fmt
 .Op Fl G Ar gid Ns Op , Ns Ar gid Ns Ar ...
@@ -47,6 +48,7 @@
 .Op Fl t Ar tty Ns Op , Ns Ar tty Ns Ar ...
 .Op Fl U Ar user Ns Op , Ns Ar user Ns Ar ...
 .Nm
+.Op Fl -libxo
 .Op Fl L
 .Sh DESCRIPTION
 The
@@ -733,7 +735,9 @@ Display information on all system proces
 .Xr procstat 1 ,
 .Xr w 1 ,
 .Xr kvm 3 ,
+.Xr libxo 3
 .Xr strftime 3 ,
+.Xr xo_parse_args 3
 .Xr mac 4 ,
 .Xr procfs 5 ,
 .Xr pstat 8 ,

Modified: head/bin/ps/ps.c
==============================================================================
--- head/bin/ps/ps.c    Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/ps.c    Fri May 22 23:07:55 2015        (r283304)
@@ -73,6 +73,7 @@ __FBSDID("$FreeBSD$");
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <libxo/xo.h>
 
 #include "ps.h"
 
@@ -184,7 +185,9 @@ main(int argc, char *argv[])
        int all, ch, elem, flag, _fmt, i, lineno, linelen, left;
        int descendancy, nentries, nkept, nselectors;
        int prtheader, wflag, what, xkeep, xkeep_implied;
+       int fwidthmin, fwidthmax;
        char errbuf[_POSIX2_LINE_MAX];
+       char fmtbuf[_POSIX2_LINE_MAX];
 
        (void) setlocale(LC_ALL, "");
        time(&now);                     /* Used by routines in print.c. */
@@ -221,6 +224,11 @@ main(int argc, char *argv[])
        init_list(&uidlist, addelem_uid, sizeof(uid_t), "user");
        memf = _PATH_DEVNULL;
        nlistf = NULL;
+
+       argc = xo_parse_args(argc, argv);
+       if (argc < 0)
+               exit(1);
+
        while ((ch = getopt(argc, argv, PS_ARGS)) != -1)
                switch (ch) {
                case 'A':
@@ -363,7 +371,7 @@ main(int argc, char *argv[])
 #endif
                case 'T':
                        if ((optarg = ttyname(STDIN_FILENO)) == NULL)
-                               errx(1, "stdin: not a terminal");
+                               xo_errx(1, "stdin: not a terminal");
                        /* FALLTHROUGH */
                case 't':
                        add_list(&ttylist, optarg);
@@ -434,8 +442,7 @@ main(int argc, char *argv[])
                argv++;
        }
        if (*argv) {
-               fprintf(stderr, "%s: illegal argument: %s\n",
-                   getprogname(), *argv);
+               xo_warnx("illegal argument: %s\n", *argv);
                usage();
        }
        if (optfatal)
@@ -445,7 +452,7 @@ main(int argc, char *argv[])
 
        kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
        if (kd == 0)
-               errx(1, "%s", errbuf);
+               xo_errx(1, "%s", errbuf);
 
        if (!_fmt)
                parsefmt(dfmt, 0);
@@ -453,7 +460,7 @@ main(int argc, char *argv[])
        if (nselectors == 0) {
                uidlist.l.ptr = malloc(sizeof(uid_t));
                if (uidlist.l.ptr == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
                nselectors = 1;
                uidlist.count = uidlist.maxcount = 1;
                *uidlist.l.uids = getuid();
@@ -515,11 +522,11 @@ main(int argc, char *argv[])
        nentries = -1;
        kp = kvm_getprocs(kd, what, flag, &nentries);
        if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0))
-               errx(1, "%s", kvm_geterr(kd));
+               xo_errx(1, "%s", kvm_geterr(kd));
        nkept = 0;
        if (nentries > 0) {
                if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
                for (i = nentries; --i >= 0; ++kp) {
                        /*
                         * If the user specified multiple selection-criteria,
@@ -629,13 +636,18 @@ main(int argc, char *argv[])
        /*
         * Print header.
         */
+       xo_open_container("process-information");
        printheader();
+       if (xo_get_style(NULL) != XO_STYLE_TEXT)
+               termwidth = UNLIMITED;
 
        /*
         * Output formatted lines.
         */
+       xo_open_list("process");
        for (i = lineno = 0; i < nkept; i++) {
                linelen = 0;
+               xo_open_instance("process");
                STAILQ_FOREACH(vent, &varlist, next_ve) {
                        if (vent->var->flag & LJUST)
                                fmtstr = "%-*s";
@@ -645,21 +657,27 @@ main(int argc, char *argv[])
                        ks = STAILQ_FIRST(&kinfo[i].ki_ks);
                        STAILQ_REMOVE_HEAD(&kinfo[i].ki_ks, ks_next);
                        /* Truncate rightmost column if necessary.  */
+                       fwidthmax = _POSIX2_LINE_MAX;
                        if (STAILQ_NEXT(vent, next_ve) == NULL &&
                           termwidth != UNLIMITED && ks->ks_str != NULL) {
                                left = termwidth - linelen;
                                if (left > 0 && left < (int)strlen(ks->ks_str))
-                                       ks->ks_str[left] = '\0';
+                                       fwidthmax = left;
                        }
+
                        str = ks->ks_str;
                        if (str == NULL)
                                str = "-";
                        /* No padding for the last column, if it's LJUST. */
-                       if (STAILQ_NEXT(vent, next_ve) == NULL &&
-                           vent->var->flag & LJUST)
-                               linelen += printf(fmtstr, 0, str);
-                       else
-                               linelen += printf(fmtstr, vent->var->width, 
str);
+                       fwidthmin = (xo_get_style(NULL) != XO_STYLE_TEXT ||
+                           (STAILQ_NEXT(vent, next_ve) == NULL &&
+                           (vent->var->flag & LJUST))) ? 0 : vent->var->width;
+                       snprintf(fmtbuf, sizeof(fmtbuf), "{:%s/%%%s%d..%ds}",
+                           vent->var->field ?: vent->var->name,
+                           (vent->var->flag & LJUST) ? "-" : "",
+                           fwidthmin, fwidthmax);
+                       xo_emit(fmtbuf, str);
+                       linelen += fwidthmin;
 
                        if (ks->ks_str != NULL) {
                                free(ks->ks_str);
@@ -669,17 +687,22 @@ main(int argc, char *argv[])
                        ks = NULL;
 
                        if (STAILQ_NEXT(vent, next_ve) != NULL) {
-                               (void)putchar(' ');
+                               xo_emit("{P: }");
                                linelen++;
                        }
                }
-               (void)putchar('\n');
+               xo_emit("\n");
+               xo_close_instance("process");
                if (prtheader && lineno++ == prtheader - 4) {
-                       (void)putchar('\n');
+                       xo_emit("\n");
                        printheader();
                        lineno = 0;
                }
        }
+       xo_close_list("process");
+       xo_close_container("process-information");
+       xo_finish();
+
        free_list(&gidlist);
        free_list(&jidlist);
        free_list(&pidlist);
@@ -705,9 +728,9 @@ addelem_gid(struct listinfo *inf, const 
 
        if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
                if (*elem == '\0')
-                       warnx("Invalid (zero-length) %s name", inf->lname);
+                       xo_warnx("Invalid (zero-length) %s name", inf->lname);
                else
-                       warnx("%s name too long: %s", inf->lname, elem);
+                       xo_warnx("%s name too long: %s", inf->lname, elem);
                optfatal = 1;
                return (0);             /* Do not add this value. */
        }
@@ -732,7 +755,7 @@ addelem_gid(struct listinfo *inf, const 
        if (grp == NULL)
                grp = getgrnam(elem);
        if (grp == NULL) {
-               warnx("No %s %s '%s'", inf->lname, nameorID, elem);
+               xo_warnx("No %s %s '%s'", inf->lname, nameorID, elem);
                optfatal = 1;
                return (0);
        }
@@ -773,7 +796,7 @@ addelem_pid(struct listinfo *inf, const 
        long tempid;
 
        if (*elem == '\0') {
-               warnx("Invalid (zero-length) process id");
+               xo_warnx("Invalid (zero-length) process id");
                optfatal = 1;
                return (0);             /* Do not add this value. */
        }
@@ -781,10 +804,10 @@ addelem_pid(struct listinfo *inf, const 
        errno = 0;
        tempid = strtol(elem, &endp, 10);
        if (*endp != '\0' || tempid < 0 || elem == endp) {
-               warnx("Invalid %s: %s", inf->lname, elem);
+               xo_warnx("Invalid %s: %s", inf->lname, elem);
                errno = ERANGE;
        } else if (errno != 0 || tempid > pid_max) {
-               warnx("%s too large: %s", inf->lname, elem);
+               xo_warnx("%s too large: %s", inf->lname, elem);
                errno = ERANGE;
        }
        if (errno == ERANGE) {
@@ -855,19 +878,19 @@ addelem_tty(struct listinfo *inf, const 
        if (ttypath) {
                if (stat(ttypath, &sb) == -1) {
                        if (pathbuf3[0] != '\0')
-                               warn("%s, %s, and %s", pathbuf3, pathbuf2,
+                               xo_warn("%s, %s, and %s", pathbuf3, pathbuf2,
                                    ttypath);
                        else
-                               warn("%s", ttypath);
+                               xo_warn("%s", ttypath);
                        optfatal = 1;
                        return (0);
                }
                if (!S_ISCHR(sb.st_mode)) {
                        if (pathbuf3[0] != '\0')
-                               warnx("%s, %s, and %s: Not a terminal",
+                               xo_warnx("%s, %s, and %s: Not a terminal",
                                    pathbuf3, pathbuf2, ttypath);
                        else
-                               warnx("%s: Not a terminal", ttypath);
+                               xo_warnx("%s: Not a terminal", ttypath);
                        optfatal = 1;
                        return (0);
                }
@@ -887,9 +910,9 @@ addelem_uid(struct listinfo *inf, const 
 
        if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
                if (*elem == '\0')
-                       warnx("Invalid (zero-length) %s name", inf->lname);
+                       xo_warnx("Invalid (zero-length) %s name", inf->lname);
                else
-                       warnx("%s name too long: %s", inf->lname, elem);
+                       xo_warnx("%s name too long: %s", inf->lname, elem);
                optfatal = 1;
                return (0);             /* Do not add this value. */
        }
@@ -899,12 +922,12 @@ addelem_uid(struct listinfo *inf, const 
                errno = 0;
                bigtemp = strtoul(elem, &endp, 10);
                if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX)
-                       warnx("No %s named '%s'", inf->lname, elem);
+                       xo_warnx("No %s named '%s'", inf->lname, elem);
                else {
                        /* The string is all digits, so it might be a userID. */
                        pwd = getpwuid((uid_t)bigtemp);
                        if (pwd == NULL)
-                               warnx("No %s name or ID matches '%s'",
+                               xo_warnx("No %s name or ID matches '%s'",
                                    inf->lname, elem);
                }
        }
@@ -961,7 +984,7 @@ add_list(struct listinfo *inf, const cha
                        while (*argp != '\0' && strchr(W_SEP T_SEP,
                            *argp) == NULL)
                                argp++;
-                       warnx("Value too long: %.*s", (int)(argp - savep),
+                       xo_warnx("Value too long: %.*s", (int)(argp - savep),
                            savep);
                        optfatal = 1;
                }
@@ -1062,7 +1085,7 @@ descendant_sort(KINFO *ki, int items)
                        continue;
                }
                if ((ki[src].ki_d.prefix = malloc(lvl * 2 + 1)) == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
                for (n = 0; n < lvl - 2; n++) {
                        ki[src].ki_d.prefix[n * 2] =
                            path[n / 8] & 1 << (n % 8) ? '|' : ' ';
@@ -1100,7 +1123,7 @@ expand_list(struct listinfo *inf)
        newlist = realloc(inf->l.ptr, newmax * inf->elemsize);
        if (newlist == NULL) {
                free(inf->l.ptr);
-               errx(1, "realloc to %d %ss failed", newmax, inf->lname);
+               xo_errx(1, "realloc to %d %ss failed", newmax, inf->lname);
        }
        inf->maxcount = newmax;
        inf->l.ptr = newlist;
@@ -1174,7 +1197,7 @@ format_output(KINFO *ki)
                str = (v->oproc)(ki, vent);
                ks = malloc(sizeof(*ks));
                if (ks == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
                ks->ks_str = str;
                STAILQ_INSERT_TAIL(&ki->ki_ks, ks, ks_next);
                if (str != NULL) {
@@ -1240,7 +1263,7 @@ saveuser(KINFO *ki)
                else
                        asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm);
                if (ki->ki_args == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
        } else {
                ki->ki_args = NULL;
        }
@@ -1251,7 +1274,7 @@ saveuser(KINFO *ki)
                else
                        ki->ki_env = strdup("()");
                if (ki->ki_env == NULL)
-                       errx(1, "malloc failed");
+                       xo_errx(1, "malloc failed");
        } else {
                ki->ki_env = NULL;
        }
@@ -1372,7 +1395,7 @@ kludge_oldps_options(const char *optlist
         * original value.
         */
        if ((newopts = ns = malloc(len + 3)) == NULL)
-               errx(1, "malloc failed");
+               xo_errx(1, "malloc failed");
 
        if (*origval != '-')
                *ns++ = '-';    /* add option flag */
@@ -1401,7 +1424,7 @@ pidmax_init(void)
 
        intsize = sizeof(pid_max);
        if (sysctlbyname("kern.pid_max", &pid_max, &intsize, NULL, 0) < 0) {
-               warn("unable to read kern.pid_max");
+               xo_warn("unable to read kern.pid_max");
                pid_max = 99999;
        }
 }
@@ -1411,7 +1434,7 @@ usage(void)
 {
 #define        SINGLE_OPTS     "[-aCcde" OPT_LAZY_f "HhjlmrSTuvwXxZ]"
 
-       (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
+       (void)xo_error("%s\n%s\n%s\n%s\n",
            "usage: ps " SINGLE_OPTS " [-O fmt | -o fmt] [-G gid[,gid...]]",
            "          [-J jid[,jid...]] [-M core] [-N system]",
            "          [-p pid[,pid...]] [-t tty[,tty...]] [-U user[,user...]]",

Modified: head/bin/ps/ps.h
==============================================================================
--- head/bin/ps/ps.h    Fri May 22 21:51:36 2015        (r283303)
+++ head/bin/ps/ps.h    Fri May 22 23:07:55 2015        (r283304)
@@ -65,6 +65,7 @@ typedef struct var {
        const char *name;       /* name(s) of variable */
        const char *header;     /* default header */
        const char *alias;      /* aliases */
+       const char *field;      /* xo field name */
 #define        COMM    0x01            /* needs exec arguments and environment 
(XXX) */
 #define        LJUST   0x02            /* left adjust on output (trailing 
blanks) */
 #define        USER    0x04            /* needs user structure */
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