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Add new options, -e and -x, to display process environment variables

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and ELF auxiliary vectors.

MFC after:	2 weeks
This commit is contained in:
Mikolaj Golub 2011-11-22 20:59:52 +00:00
parent 17ff418d13
commit e99272c732
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=227838
6 changed files with 228 additions and 12 deletions
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1
usr.bin/procstat/Makefile
View File

@ -4,6 +4,7 @@ PROG= procstat
MAN= procstat.1
SRCS= procstat.c \
procstat_args.c \
procstat_auxv.c \
procstat_basic.c \
procstat_bin.c \
procstat_cred.c \

6
usr.bin/procstat/procstat.1
View File

@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd November 7, 2011
.Dd November 22, 2011
.Dt PROCSTAT 1
.Os
.Sh NAME
@ -56,6 +56,8 @@ for printing:
Display binary information for the process.
.It Fl c
Display command line arguments for the process.
.It Fl e
Display environment variables for the process.
.It Fl f
Display file descriptor information for the process.
.It Fl i
@ -73,6 +75,8 @@ Display security credential information for the process.
Display thread information for the process.
.It Fl v
Display virtual memory mappings for the process.
.It Fl x
Display ELF auxiliary vector for the process.
.El
.Pp
All options generate output in the format of a table, the first field of

25
usr.bin/procstat/procstat.c
View File

@ -39,7 +39,8 @@
#include "procstat.h"
static int aflag, bflag, cflag, fflag, iflag, jflag, kflag, sflag, tflag, vflag;
static int aflag, bflag, cflag, eflag, fflag, iflag, jflag, kflag, sflag, tflag;
static int vflag, xflag;
int hflag, nflag, Cflag;
static void
@ -47,8 +48,9 @@ usage(void)
{
fprintf(stderr, "usage: procstat [-h] [-C] [-M core] [-N system] "
"[-w interval] [-b | -c | -f | -i | -j | -k | -s | -t | -v]\n");
fprintf(stderr, " [-a | pid ...]\n");
"[-w interval] \n");
fprintf(stderr, " [-b | -c | -e | -f | -i | -j | -k | "
"-s | -t | -v | -x] [-a | pid ...]\n");
exit(EX_USAGE);
}
@ -60,6 +62,8 @@ procstat(struct procstat *prstat, struct kinfo_proc *kipp)
procstat_bin(kipp);
else if (cflag)
procstat_args(kipp);
else if (eflag)
procstat_env(kipp);
else if (fflag)
procstat_files(prstat, kipp);
else if (iflag)
@ -74,6 +78,8 @@ procstat(struct procstat *prstat, struct kinfo_proc *kipp)
procstat_threads(kipp);
else if (vflag)
procstat_vm(kipp);
else if (xflag)
procstat_auxv(kipp);
else
procstat_basic(kipp);
}
@ -117,7 +123,7 @@ main(int argc, char *argv[])
interval = 0;
memf = nlistf = NULL;
while ((ch = getopt(argc, argv, "CN:M:abcfijkhstvw:")) != -1) {
while ((ch = getopt(argc, argv, "CN:M:abcefijkhstvw:x")) != -1) {
switch (ch) {
case 'C':
Cflag++;
@ -141,6 +147,10 @@ main(int argc, char *argv[])
cflag++;
break;
case 'e':
eflag++;
break;
case 'f':
fflag++;
break;
@ -186,6 +196,10 @@ main(int argc, char *argv[])
interval = l;
break;
case 'x':
xflag++;
break;
case '?':
default:
usage();
@ -196,7 +210,8 @@ main(int argc, char *argv[])
argv += optind;
/* We require that either 0 or 1 mode flags be set. */
tmp = bflag + cflag + fflag + (kflag ? 1 : 0) + sflag + tflag + vflag;
tmp = bflag + cflag + eflag + fflag + (kflag ? 1 : 0) + sflag + tflag +
vflag + xflag;
if (!(tmp == 0 || tmp == 1))
usage();

2
usr.bin/procstat/procstat.h
View File

@ -35,9 +35,11 @@ struct kinfo_proc;
void kinfo_proc_sort(struct kinfo_proc *kipp, int count);
void procstat_args(struct kinfo_proc *kipp);
void procstat_auxv(struct kinfo_proc *kipp);
void procstat_basic(struct kinfo_proc *kipp);
void procstat_bin(struct kinfo_proc *kipp);
void procstat_cred(struct kinfo_proc *kipp);
void procstat_env(struct kinfo_proc *kipp);
void procstat_files(struct procstat *prstat, struct kinfo_proc *kipp);
void procstat_kstack(struct kinfo_proc *kipp, int kflag);
void procstat_sigs(struct procstat *prstat, struct kinfo_proc *kipp);

26
usr.bin/procstat/procstat_args.c
View File

@ -42,24 +42,26 @@
static char args[ARG_MAX];
void
procstat_args(struct kinfo_proc *kipp)
static void
do_args(struct kinfo_proc *kipp, int env)
{
int error, name[4];
size_t len;
char *cp;
if (!hflag)
printf("%5s %-16s %-53s\n", "PID", "COMM", "ARGS");
printf("%5s %-16s %-53s\n", "PID", "COMM",
env ? "ENVIRONMENT" : "ARGS");
name[0] = CTL_KERN;
name[1] = KERN_PROC;
name[2] = KERN_PROC_ARGS;
name[2] = env ? KERN_PROC_ENV : KERN_PROC_ARGS;
name[3] = kipp->ki_pid;
len = sizeof(args);
error = sysctl(name, 4, args, &len, NULL, 0);
if (error < 0 && errno != ESRCH) {
warn("sysctl: kern.proc.args: %d", kipp->ki_pid);
if (error < 0 && errno != ESRCH && errno != EPERM) {
warn("sysctl: kern.proc.%s: %d: %d", env ? "env" : "args",
kipp->ki_pid, errno);
return;
}
if (error < 0)
@ -75,3 +77,15 @@ procstat_args(struct kinfo_proc *kipp)
printf("%s%s", cp != args ? " " : "", cp);
printf("\n");
}
void
procstat_args(struct kinfo_proc *kipp)
{
do_args(kipp, 0);
}
void
procstat_env(struct kinfo_proc *kipp)
{
do_args(kipp, 1);
}

180
usr.bin/procstat/procstat_auxv.c Normal file
View File

@ -0,0 +1,180 @@
/*-
* Copyright (c) 2011 Mikolaj Golub
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <err.h>
#include <errno.h>
#include <libprocstat.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <machine/elf.h>
#include "procstat.h"
static char auxv[sizeof(Elf_Auxinfo) * 256];
void
procstat_auxv(struct kinfo_proc *kipp)
{
Elf_Auxinfo *aux;
int i, error, name[4];
size_t len;
if (!hflag)
printf("%5s %-16s %-53s\n", "PID", "COMM", "AUXV");
name[0] = CTL_KERN;
name[1] = KERN_PROC;
name[2] = KERN_PROC_AUXV;
name[3] = kipp->ki_pid;
len = sizeof(auxv);
error = sysctl(name, 4, auxv, &len, NULL, 0);
if (error < 0 && errno != ESRCH) {
warn("sysctl: kern.proc.auxv: %d: %d", kipp->ki_pid, errno);
return;
}
if (error < 0)
return;
printf("%5d ", kipp->ki_pid);
printf("%-16s", kipp->ki_comm);
if (len == 0) {
printf(" -\n");
return;
}
for (aux = (Elf_Auxinfo *)auxv, i = 0; i < 256; i++, aux++) {
switch(aux->a_type) {
case AT_NULL:
printf(" (%d)\n", i + 1);
return;
case AT_IGNORE:
printf(" AT_IGNORE=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_EXECFD:
printf(" AT_EXECFD=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PHDR:
printf(" AT_PHDR=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PHENT:
printf(" AT_PHENT=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PHNUM:
printf(" AT_PHNUM=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PAGESZ:
printf(" AT_PAGESZ=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_BASE:
printf(" AT_BASE=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_FLAGS:
printf(" AT_FLAGS=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_ENTRY:
printf(" AT_ENTRY=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_NOTELF:
printf(" AT_NOTELF=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_UID:
printf(" AT_UID=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_EUID:
printf(" AT_EUID=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_GID:
printf(" AT_GID=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_EGID:
printf(" AT_EGID=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_EXECPATH:
printf(" AT_EXECPATH=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_CANARY:
printf(" AT_CANARY=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_CANARYLEN:
printf(" AT_CANARYLEN=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_OSRELDATE:
printf(" AT_OSRELDATE=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_NCPUS:
printf(" AT_NCPUS=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PAGESIZES:
printf(" AT_PAGESIZES=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_PAGESIZESLEN:
printf(" AT_PAGESIZESLEN=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_STACKPROT:
printf(" AT_STACKPROT=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
case AT_COUNT:
printf(" AT_COUNT=0x%lu",
(unsigned long)aux->a_un.a_val);
break;
default:
printf(" %ld=0x%lu", (long)aux->a_type,
(unsigned long)aux->a_un.a_val);
break;
}
}
printf("\n");
}