mirror of
https://github.com/sheumann/hush.git
synced 2024-08-19 13:28:57 +00:00
112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/*
|
|
* pmap implementation for busybox
|
|
*
|
|
* Copyright (C) 2010 Nokia Corporation. All rights reserved.
|
|
* Written by Alexander Shishkin <virtuoso@slind.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see the LICENSE file in this source tree
|
|
* for details.
|
|
*/
|
|
|
|
//applet:IF_PMAP(APPLET(pmap, _BB_DIR_USR_BIN, _BB_SUID_DROP))
|
|
//kbuild:lib-$(CONFIG_PMAP) += pmap.o
|
|
|
|
//config:config PMAP
|
|
//config: bool "pmap"
|
|
//config: default y
|
|
//config: help
|
|
//config: Display processes' memory mappings.
|
|
|
|
//usage:#define pmap_trivial_usage
|
|
//usage: "[-x][-q] PID"
|
|
//usage:#define pmap_full_usage "\n\n"
|
|
//usage: "Display detailed precesses' memory usage\n"
|
|
//usage: "\nOptions:"
|
|
//usage: "\n -x show details"
|
|
//usage: "\n -q quiet"
|
|
|
|
#include "libbb.h"
|
|
|
|
#if ULONG_MAX == 0xffffffff
|
|
# define TABS "\t"
|
|
# define AFMT "8"
|
|
# define DASHES ""
|
|
#else
|
|
# define TABS "\t\t"
|
|
# define AFMT "16"
|
|
# define DASHES "--------"
|
|
#endif
|
|
|
|
enum {
|
|
OPT_x = 1 << 0,
|
|
OPT_q = 1 << 1,
|
|
};
|
|
|
|
static void print_smaprec(struct smaprec *currec, void *data)
|
|
{
|
|
unsigned opt = (uintptr_t)data;
|
|
|
|
printf("%0" AFMT "lx ", currec->smap_start);
|
|
|
|
if (opt & OPT_x)
|
|
printf("%7lu %7lu %7lu %7lu ",
|
|
currec->smap_size,
|
|
currec->smap_pss,
|
|
currec->private_dirty,
|
|
currec->smap_swap);
|
|
else
|
|
printf("%7luK", currec->smap_size);
|
|
|
|
printf(" %.4s %s\n", currec->smap_mode, currec->smap_name);
|
|
}
|
|
|
|
static int procps_get_maps(pid_t pid, unsigned opt)
|
|
{
|
|
struct smaprec total;
|
|
int ret;
|
|
char buf[256];
|
|
|
|
read_cmdline(buf, sizeof(buf), pid, "no such process");
|
|
printf("%u: %s\n", (int)pid, buf);
|
|
|
|
if (!(opt & OPT_q) && (opt & OPT_x))
|
|
puts("Address" TABS " Kbytes PSS Dirty Swap Mode Mapping");
|
|
|
|
memset(&total, 0, sizeof(total));
|
|
|
|
ret = procps_read_smaps(pid, &total, print_smaprec, (void*)(uintptr_t)opt);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!(opt & OPT_q)) {
|
|
if (opt & OPT_x)
|
|
printf("--------" DASHES " ------ ------ ------ ------\n"
|
|
"total" TABS " %7lu %7lu %7lu %7lu\n",
|
|
total.smap_size, total.smap_pss, total.private_dirty, total.smap_swap);
|
|
else
|
|
printf("mapped: %luK\n", total.smap_size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int pmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int pmap_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
unsigned opts;
|
|
int ret;
|
|
|
|
opts = getopt32(argv, "xq");
|
|
argv += optind;
|
|
|
|
ret = 0;
|
|
while (*argv) {
|
|
pid_t pid = xatoi_positive(*argv++);
|
|
/* GNU pmap returns 42 if any of the pids failed */
|
|
if (procps_get_maps(pid, opts) != 0)
|
|
ret = 42;
|
|
}
|
|
|
|
return ret;
|
|
}
|