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systemctl,loginctl,cgls: do not ellipsize cgroup members when --full is specified

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New file output.h with output flags and modes.

--full parameter also for cgls and loginctl.

Include 'all' parameter in flags (show_cgroup_by_path, show_cgroup,
show_cgroup_and_extra, show_cgroup_and_extra_by_spec).

get_process_cmdline with max_length == 0 will not ellipsize output.

Replace LINE_MAX with 0 in some calls of get_process_cmdline.

[zj: Default to --full when under pager for clgs.
     Drop '-f' since it wasn't documented and didn't actually work.
     Reindent a bit.
]
This commit is contained in:
Lukas Nykryn 2013-01-14 18:16:50 +01:00 committed by Zbigniew Jędrzejewski-Szmek
parent 2e72983463
commit 9bdbc2e2ec
15 changed files with 201 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Makefile.am
View File

@ -803,7 +803,8 @@ libsystemd_shared_la_SOURCES = \
src/shared/time-dst.c \
src/shared/time-dst.h \
src/shared/calendarspec.c \
src/shared/calendarspec.h
src/shared/calendarspec.h \
src/shared/output-mode.h
libsystemd_shared_la_LIBADD = libsystemd-daemon.la

7
man/loginctl.xml
View File

@ -110,6 +110,13 @@
set or not.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--full</option></term>
<listitem><para>Do not ellipsize cgroup
members.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-pager</option></term>

2
man/systemctl.xml
View File

@ -156,7 +156,7 @@
<term><option>--full</option></term>
<listitem><para>Do not ellipsize unit
names and truncate unit descriptions
names, cgroup members, and truncate unit descriptions
in the output of
<command>list-units</command> and
<command>list-jobs</command>.</para></listitem>

8
man/systemd-cgls.xml
View File

@ -110,6 +110,14 @@
output.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--full</option></term>
<listitem><para>Do not ellipsize cgroup
members.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-k</option></term>

34
src/cgls/cgls.c
View File

@ -33,10 +33,12 @@
#include "util.h"
#include "pager.h"
#include "build.h"
#include "output-mode.h"
static bool arg_no_pager = false;
static bool arg_kernel_threads = false;
static bool arg_all = false;
static int arg_full = -1;
static void help(void) {
@ -46,6 +48,7 @@ static void help(void) {
" --version Show package version\n"
" --no-pager Do not pipe output into a pager\n"
" -a --all Show all groups, including empty\n"
" --full Do not ellipsize output\n"
" -k Include kernel threads in output\n",
program_invocation_short_name);
}
@ -54,7 +57,8 @@ static int parse_argv(int argc, char *argv[]) {
enum {
ARG_NO_PAGER = 0x100,
ARG_VERSION
ARG_VERSION,
ARG_FULL,
};
static const struct option options[] = {
@ -62,6 +66,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "version", no_argument, NULL, ARG_VERSION },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "all", no_argument, NULL, 'a' },
{ "full", no_argument, NULL, ARG_FULL },
{ NULL, 0, NULL, 0 }
};
@ -91,6 +96,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_all = true;
break;
case ARG_FULL:
arg_full = true;
break;
case 'k':
arg_kernel_threads = true;
break;
@ -109,6 +118,7 @@ static int parse_argv(int argc, char *argv[]) {
int main(int argc, char *argv[]) {
int r = 0, retval = EXIT_FAILURE;
int output_flags;
log_parse_environment();
log_open();
@ -121,8 +131,17 @@ int main(int argc, char *argv[]) {
goto finish;
}
if (!arg_no_pager)
pager_open();
if (!arg_no_pager) {
r = pager_open();
if (r > 0) {
if (arg_full == -1)
arg_full = true;
}
}
output_flags =
arg_all * OUTPUT_SHOW_ALL |
(arg_full > 0) * OUTPUT_FULL_WIDTH;
if (optind < argc) {
unsigned i;
@ -131,7 +150,8 @@ int main(int argc, char *argv[]) {
int q;
printf("%s:\n", argv[i]);
q = show_cgroup_by_path(argv[i], NULL, 0, arg_kernel_threads, arg_all);
q = show_cgroup_by_path(argv[i], NULL, 0,
arg_kernel_threads, output_flags);
if (q < 0)
r = q;
}
@ -147,7 +167,8 @@ int main(int argc, char *argv[]) {
if (path_startswith(p, "/sys/fs/cgroup")) {
printf("Working Directory %s:\n", p);
r = show_cgroup_by_path(p, NULL, 0, arg_kernel_threads, arg_all);
r = show_cgroup_by_path(p, NULL, 0,
arg_kernel_threads, output_flags);
} else {
char _cleanup_free_ *root = NULL;
const char *t = NULL;
@ -162,7 +183,8 @@ int main(int argc, char *argv[]) {
t = root[0] ? root : "/";
}
r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0, arg_kernel_threads, arg_all);
r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, t, NULL, 0,
arg_kernel_threads, output_flags);
}
}

4
src/core/selinux-access.c
View File

@ -134,7 +134,7 @@ static int bus_get_audit_data(
if (r < 0)
return r;
r = get_process_cmdline(pid, LINE_MAX, true, &audit->cmdline);
r = get_process_cmdline(pid, 0, true, &audit->cmdline);
if (r < 0)
return r;
@ -280,7 +280,7 @@ static int get_audit_data(
if (r < 0)
return r;
r = get_process_cmdline(ucred.pid, LINE_MAX, true, &audit->cmdline);
r = get_process_cmdline(ucred.pid, 0, true, &audit->cmdline);
if (r < 0)
return r;

2
src/journal/coredump.c
View File

@ -205,7 +205,7 @@ int main(int argc, char* argv[]) {
IOVEC_SET_STRING(iovec[j++], core_exe);
}
if (get_process_cmdline(pid, LINE_MAX, false, &t) >= 0) {
if (get_process_cmdline(pid, 0, false, &t) >= 0) {
core_cmdline = strappend("COREDUMP_CMDLINE=", t);
free(t);

2
src/journal/journald-server.c
View File

@ -556,7 +556,7 @@ static void dispatch_message_real(
IOVEC_SET_STRING(iovec[n++], exe);
}
r = get_process_cmdline(ucred->pid, LINE_MAX, false, &t);
r = get_process_cmdline(ucred->pid, 0, false, &t);
if (r >= 0) {
cmdline = strappend("_CMDLINE=", t);
free(t);

24
src/login/loginctl.c
View File

@ -40,6 +40,7 @@
static char **arg_property = NULL;
static bool arg_all = false;
static bool arg_full = false;
static bool arg_no_pager = false;
static const char *arg_kill_who = NULL;
static int arg_signal = SIGTERM;
@ -402,6 +403,9 @@ static void print_session_status_info(SessionStatusInfo *i) {
if (i->default_control_group) {
unsigned c;
int output_flags =
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH;
printf("\t CGroup: %s\n", i->default_control_group);
@ -412,7 +416,10 @@ static void print_session_status_info(SessionStatusInfo *i) {
else
c = 0;
show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, &i->leader, i->leader > 0 ? 1 : 0);
show_cgroup_and_extra_by_spec(i->default_control_group,
"\t\t ", c, false, &i->leader,
i->leader > 0 ? 1 : 0,
output_flags);
}
}
}
@ -454,6 +461,9 @@ static void print_user_status_info(UserStatusInfo *i) {
if (i->default_control_group) {
unsigned c;
int output_flags =
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH;
printf("\t CGroup: %s\n", i->default_control_group);
@ -464,7 +474,8 @@ static void print_user_status_info(UserStatusInfo *i) {
else
c = 0;
show_cgroup_by_path(i->default_control_group, "\t\t ", c, false, arg_all);
show_cgroup_by_path(i->default_control_group, "\t\t ",
c, false, output_flags);
}
}
}
@ -1323,6 +1334,7 @@ static int help(void) {
" -p --property=NAME Show only properties by this name\n"
" -a --all Show all properties, including empty ones\n"
" --kill-who=WHO Who to send signal to\n"
" --full Do not ellipsize output\n"
" -s --signal=SIGNAL Which signal to send\n"
" --no-ask-password Don't prompt for password\n"
" -H --host=[USER@]HOST Show information for remote host\n"
@ -1362,7 +1374,8 @@ static int parse_argv(int argc, char *argv[]) {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
ARG_KILL_WHO,
ARG_NO_ASK_PASSWORD
ARG_NO_ASK_PASSWORD,
ARG_FULL,
};
static const struct option options[] = {
@ -1376,6 +1389,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "host", required_argument, NULL, 'H' },
{ "privileged", no_argument, NULL, 'P' },
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
{ "full", no_argument, NULL, ARG_FULL },
{ NULL, 0, NULL, 0 }
};
@ -1447,6 +1461,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_host = optarg;
break;
case ARG_FULL:
arg_full = true;
break;
case '?':
return -EINVAL;

49
src/shared/cgroup-show.c
View File

@ -51,7 +51,7 @@ static unsigned ilog10(unsigned long ul) {
return n;
}
static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsigned n_columns, bool extra, bool more, bool kernel_threads) {
static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsigned n_columns, bool extra, bool more, bool kernel_threads, OutputFlags flags) {
unsigned i, m, pid_width;
pid_t biggest = 0;
@ -76,11 +76,14 @@ static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsi
/* And sort */
qsort(pids, n_pids, sizeof(pid_t), compare);
if (n_columns > pid_width+2)
n_columns -= pid_width+2;
else
n_columns = 20;
if(flags & OUTPUT_FULL_WIDTH)
n_columns = 0;
else {
if (n_columns > pid_width+2)
n_columns -= pid_width+2;
else
n_columns = 20;
}
for (i = 0; i < n_pids; i++) {
char *t = NULL;
@ -99,7 +102,7 @@ static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsi
}
static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigned n_columns, bool more, bool kernel_threads) {
static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigned n_columns, bool more, bool kernel_threads, OutputFlags flags) {
char *fn;
FILE *f;
size_t n = 0, n_allocated = 0;
@ -149,7 +152,7 @@ static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigne
goto finish;
if (n > 0)
show_pid_array(pids, n, prefix, n_columns, false, more, kernel_threads);
show_pid_array(pids, n, prefix, n_columns, false, more, kernel_threads, flags);
r = 0;
@ -162,7 +165,7 @@ finish:
return r;
}
int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all) {
int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, OutputFlags flags) {
DIR *d;
char *last = NULL;
char *p1 = NULL, *p2 = NULL, *fn = NULL, *gn = NULL;
@ -197,13 +200,13 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
goto finish;
}
if (!all && cg_is_empty_recursive(NULL, k, false) > 0) {
if (!(flags & OUTPUT_SHOW_ALL) && cg_is_empty_recursive(NULL, k, false) > 0) {
free(k);
continue;
}
if (!shown_pids) {
show_cgroup_one_by_path(path, prefix, n_columns, true, kernel_threads);
show_cgroup_one_by_path(path, prefix, n_columns, true, kernel_threads, flags);
shown_pids = true;
}
@ -220,7 +223,7 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
}
}
show_cgroup_by_path(last, p1, n_columns-2, kernel_threads, all);
show_cgroup_by_path(last, p1, n_columns-2, kernel_threads, flags);
free(last);
}
@ -231,7 +234,7 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
goto finish;
if (!shown_pids)
show_cgroup_one_by_path(path, prefix, n_columns, !!last, kernel_threads);
show_cgroup_one_by_path(path, prefix, n_columns, !!last, kernel_threads, flags);
if (last) {
printf("%s%s%s\n", prefix, draw_special_char(DRAW_TREE_RIGHT),
@ -245,7 +248,7 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
}
}
show_cgroup_by_path(last, p2, n_columns-2, kernel_threads, all);
show_cgroup_by_path(last, p2, n_columns-2, kernel_threads, flags);
}
r = 0;
@ -261,7 +264,7 @@ finish:
return r;
}
int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all) {
int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, OutputFlags flags) {
char *p;
int r;
@ -272,13 +275,13 @@ int show_cgroup(const char *controller, const char *path, const char *prefix, un
if (r < 0)
return r;
r = show_cgroup_by_path(p, prefix, n_columns, kernel_threads, all);
r = show_cgroup_by_path(p, prefix, n_columns, kernel_threads, flags);
free(p);
return r;
}
static int show_extra_pids(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t pids[], unsigned n_pids) {
static int show_extra_pids(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t pids[], unsigned n_pids, OutputFlags flags) {
pid_t *copy;
unsigned i, j;
int r;
@ -314,26 +317,26 @@ static int show_extra_pids(const char *controller, const char *path, const char
copy[j++] = pids[i];
}
show_pid_array(copy, j, prefix, n_columns, true, false, false);
show_pid_array(copy, j, prefix, n_columns, true, false, false, flags);
free(copy);
return 0;
}
int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags) {
int r;
assert(controller);
assert(path);
r = show_cgroup(controller, path, prefix, n_columns, kernel_threads, all);
r = show_cgroup(controller, path, prefix, n_columns, kernel_threads, flags);
if (r < 0)
return r;
return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids);
return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids, flags);
}
int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags) {
int r;
_cleanup_free_ char *controller = NULL, *path = NULL;
@ -343,5 +346,5 @@ int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned
if (r < 0)
return r;
return show_cgroup_and_extra(controller, path, prefix, n_columns, kernel_threads, all, extra_pids, n_extra_pids);
return show_cgroup_and_extra(controller, path, prefix, n_columns, kernel_threads, extra_pids, n_extra_pids, flags);
}

10
src/shared/cgroup-show.h
View File

@ -24,11 +24,13 @@
#include <stdbool.h>
#include <sys/types.h>
#include "util.h"
#include "logs-show.h"
int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, bool kernel_threads, bool all);
int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned columns, bool kernel_threads, bool all);
int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, bool kernel_threads, OutputFlags flags);
int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned columns, bool kernel_threads, OutputFlags flags);
int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids);
int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids);
int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags);
int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags);
#endif

23
src/shared/logs-show.h
View File

@ -26,28 +26,7 @@
#include <systemd/sd-journal.h>
#include "util.h"
typedef enum OutputMode {
OUTPUT_SHORT,
OUTPUT_SHORT_MONOTONIC,
OUTPUT_VERBOSE,
OUTPUT_EXPORT,
OUTPUT_JSON,
OUTPUT_JSON_PRETTY,
OUTPUT_JSON_SSE,
OUTPUT_CAT,
_OUTPUT_MODE_MAX,
_OUTPUT_MODE_INVALID = -1
} OutputMode;
typedef enum OutputFlags {
OUTPUT_SHOW_ALL = 1 << 0,
OUTPUT_FOLLOW = 1 << 1,
OUTPUT_WARN_CUTOFF = 1 << 2,
OUTPUT_FULL_WIDTH = 1 << 3,
OUTPUT_COLOR = 1 << 4,
OUTPUT_CATALOG = 1 << 5
} OutputFlags;
#include "output-mode.h"
int output_journal(
FILE *f,

44
src/shared/output-mode.h Normal file
View File

@ -0,0 +1,44 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
typedef enum OutputMode {
OUTPUT_SHORT,
OUTPUT_SHORT_MONOTONIC,
OUTPUT_VERBOSE,
OUTPUT_EXPORT,
OUTPUT_JSON,
OUTPUT_JSON_PRETTY,
OUTPUT_JSON_SSE,
OUTPUT_CAT,
_OUTPUT_MODE_MAX,
_OUTPUT_MODE_INVALID = -1
} OutputMode;
typedef enum OutputFlags {
OUTPUT_SHOW_ALL = 1 << 0,
OUTPUT_FOLLOW = 1 << 1,
OUTPUT_WARN_CUTOFF = 1 << 2,
OUTPUT_FULL_WIDTH = 1 << 3,
OUTPUT_COLOR = 1 << 4,
OUTPUT_CATALOG = 1 << 5
} OutputFlags;

78
src/shared/util.c
View File

@ -905,13 +905,10 @@ int get_process_comm(pid_t pid, char **name) {
}
int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) {
char *r, *k;
char *r = NULL, *k;
int c;
bool space = false;
size_t left;
FILE *f;
assert(max_length > 0);
assert(line);
if (pid == 0)
@ -927,47 +924,64 @@ int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char *
if (!f)
return -errno;
if (max_length == 0) {
size_t len = 1;
while ((c = getc(f)) != EOF) {
k = realloc(r, len+1);
if (k == NULL) {
free(r);
fclose(f);
return -ENOMEM;
}
r = k;
r[len-1] = isprint(c) ? c : ' ';
r[len] = 0;
len++;
}
} else {
bool space = false;
size_t left;
r = new(char, max_length);
if (!r) {
fclose(f);
return -ENOMEM;
}
r = new(char, max_length);
if (!r) {
fclose(f);
return -ENOMEM;
}
k = r;
left = max_length;
while ((c = getc(f)) != EOF) {
k = r;
left = max_length;
while ((c = getc(f)) != EOF) {
if (isprint(c)) {
if (space) {
if (left <= 4)
break;
*(k++) = ' ';
left--;
space = false;
}
if (isprint(c)) {
if (space) {
if (left <= 4)
break;
*(k++) = ' ';
*(k++) = (char) c;
left--;
space = false;
}
} else
space = true;
}
if (left <= 4)
break;
*(k++) = (char) c;
left--;
} else
space = true;
if (left <= 4) {
size_t n = MIN(left-1, 3U);
memcpy(k, "...", n);
k[n] = 0;
} else
*k = 0;
}
if (left <= 4) {
size_t n = MIN(left-1, 3U);
memcpy(k, "...", n);
k[n] = 0;
} else
*k = 0;
fclose(f);
/* Kernel threads have no argv[] */
if (r[0] == 0) {
if (r == NULL || r[0] == 0) {
char *t;
int h;

14
src/systemctl/systemctl.c
View File

@ -2231,6 +2231,12 @@ static void print_status_info(UnitStatusInfo *i) {
char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
char since2[FORMAT_TIMESTAMP_MAX], *s2;
const char *path;
int flags =
arg_all * OUTPUT_SHOW_ALL |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF |
arg_full * OUTPUT_FULL_WIDTH;
assert(i);
@ -2454,17 +2460,11 @@ static void print_status_info(UnitStatusInfo *i) {
if (i->control_pid > 0)
extra[k++] = i->control_pid;
show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, extra, k, flags);
}
}
if (i->id && arg_transport != TRANSPORT_SSH) {
int flags =
arg_all * OUTPUT_SHOW_ALL |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
printf("\n");
show_journal_by_unit(stdout,
i->id,