From 9d20ffda794208d26e6b3ed09fbc38d94d0b8fc6 Mon Sep 17 00:00:00 2001 From: Karel Zak Date: Tue, 30 Jun 2015 13:02:36 +0200 Subject: lsipc: new command to list IPC facilities Co-Author: Karel Zak Signed-off-by: Karel Zak Signed-off-by: Ondrej Oprala --- .gitignore | 1 + bash-completion/Makemodule.am | 3 + bash-completion/lsipc | 65 +++ configure.ac | 5 + sys-utils/Makemodule.am | 10 + sys-utils/lsipc.1 | 135 +++++ sys-utils/lsipc.c | 1259 +++++++++++++++++++++++++++++++++++++++++ 7 files changed, 1478 insertions(+) create mode 100644 bash-completion/lsipc create mode 100644 sys-utils/lsipc.1 create mode 100644 sys-utils/lsipc.c diff --git a/.gitignore b/.gitignore index 6ef0c4da9..0ef438a00 100644 --- a/.gitignore +++ b/.gitignore @@ -115,6 +115,7 @@ update.log /look /losetup /lsblk +/lsipc /lscpu /lslocks /lslogins diff --git a/bash-completion/Makemodule.am b/bash-completion/Makemodule.am index d65cc8f51..5372ed09d 100644 --- a/bash-completion/Makemodule.am +++ b/bash-completion/Makemodule.am @@ -45,6 +45,9 @@ endif if BUILD_LOOK dist_bashcompletion_DATA += bash-completion/look endif +if BUILD_LSIPC +dist_bashcompletion_DATA += bash-completion/lsipc +endif if BUILD_MCOOKIE dist_bashcompletion_DATA += bash-completion/mcookie endif diff --git a/bash-completion/lsipc b/bash-completion/lsipc new file mode 100644 index 000000000..6ce0551a5 --- /dev/null +++ b/bash-completion/lsipc @@ -0,0 +1,65 @@ +_lsipc_module() +{ + local cur prev OPTS ARG + COMPREPLY=() + cur="${COMP_WORDS[COMP_CWORD]}" + prev="${COMP_WORDS[COMP_CWORD-1]}" + case $prev in + '-i'|'--id') + COMPREPLY=( $(compgen -W "id" -- $cur) ) + return 0 + ;; + '-h'|'--help'|'-V'|'--version') + return 0 + ;; + '-o'|'--output') + local prefix realcur OUTPUT_ALL OUTPUT + realcur="${cur##*,}" + prefix="${cur%$realcur}" + OUTPUT_ALL="GENERAL KEY ID OWNER PERMS CUID + CGID UID GID CHANGE MESSAGE USEDBYTES + MSGS SEND RECV LSPID LRPID SHARED BYTES + NATTCH STATUS ATTACH DETACH CPID LPID NSEMS + LASTOP" + for WORD in $OUTPUT_ALL; do + if ! [[ $prefix == *"$WORD"* ]]; then + OUTPUT="$WORD $OUTPUT" + fi + done + compopt -o nospace + COMPREPLY=( $(compgen -P "$prefix" -W "$OUTPUT" -S ',' -- $realcur) ) + return 0 + ;; + esac + case $cur in + -*) + OPTS="--id + --help + --version + --shmems + --queues + --semaphores + --colon-separate + --creator + --export + --global + --json + --newline + --noheadings + --notruncate + --output + --pid + --print0 + --raw + --time + --time-format" + COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) ) + return 0 + ;; + esac + local IFS=$'\n' + compopt -o filenames + COMPREPLY=( $(compgen -f -- $cur) ) + return 0 +} +complete -F _lsipc_module lsipc diff --git a/configure.ac b/configure.ac index 58feb2237..c37d04401 100644 --- a/configure.ac +++ b/configure.ac @@ -1388,6 +1388,11 @@ AM_CONDITIONAL([BUILD_IPCRM], [test "x$build_ipcrm" = xyes]) UL_BUILD_INIT([ipcs], [yes]) AM_CONDITIONAL([BUILD_IPCS], [test "x$build_ipcs" = xyes]) +UL_BUILD_INIT([lsipc], [check]) +UL_REQUIRES_LINUX([lsipc]) +UL_REQUIRES_BUILD([lsipc], [libsmartcols]) +AM_CONDITIONAL([BUILD_LSIPC], [test "x$build_lsipc" = xyes]) + UL_BUILD_INIT([renice], [yes]) AM_CONDITIONAL([BUILD_RENICE], [test "x$build_renice" = xyes]) diff --git a/sys-utils/Makemodule.am b/sys-utils/Makemodule.am index fcc5c53ef..f306e6559 100644 --- a/sys-utils/Makemodule.am +++ b/sys-utils/Makemodule.am @@ -28,6 +28,16 @@ ipcs_SOURCES = sys-utils/ipcs.c \ ipcs_LDADD = $(LDADD) libcommon.la endif +if BUILD_LSIPC +usrbin_exec_PROGRAMS += lsipc +dist_man_MANS += sys-utils/lsipc.1 +lsipc_SOURCES = sys-utils/lsipc.c \ + sys-utils/ipcutils.c \ + sys-utils/ipcutils.h +lsipc_LDADD = $(LDADD) libcommon.la libsmartcols.la +lsipc_CFLAGS = $(AM_CFLAGS) -I$(ul_libsmartcols_incdir) +endif + if BUILD_RENICE usrbin_exec_PROGRAMS += renice dist_man_MANS += sys-utils/renice.1 diff --git a/sys-utils/lsipc.1 b/sys-utils/lsipc.1 new file mode 100644 index 000000000..73753a511 --- /dev/null +++ b/sys-utils/lsipc.1 @@ -0,0 +1,135 @@ +.\" Copyright 2015 Ondrej Oprala(ooprala@redhat.com) +.\" May be distributed under the GNU General Public License +.TH LSIPC "1" "June 2015" "util-linux" "User Commands" +.SH NAME +lsipc \- show information on IPC facilities currently employed in the system +.SH SYNOPSIS +.B lsipc +[options] +.SH DESCRIPTION +.B lsipc +shows information on the inter-process communication facilities +for which the calling process has read access. +.SH OPTIONS +.TP +\fB\-i\fR, \fB\-\-id\fR \fIid\fR +Show full details on just the one resource element identified by +.IR id . +This option needs to be combined with one of the three resource options: +.BR \-m , +.BR \-q " or" +.BR \-s . +.TP +\fB\-g\fR, \fB\-\-global\fR +Show system-wide usage and limits for a single IPC type. +This option needs to be combined with one of the three resource options: +.BR \-m , +.BR \-q " or" +.BR \-s . +.TP +\fB\-h\fR, \fB\-\-help\fR +Display help text and exit. +.TP +\fB\-V\fR, \fB\-\-version\fR +Display version information and exit. +.SS "Resource options" +.TP +\fB\-m\fR, \fB\-\-shmems\fR +Write information about active shared memory segments. +.TP +\fB\-q\fR, \fB\-\-queues\fR +Write information about active message queues. +.TP +\fB\-s\fR, \fB\-\-semaphores\fR +Write information about active semaphore sets. +.SS "Output formats" +.TP +\fB\-c\fR, \fB\-\-creator\fR +Show creator and owner. +.TP +\fB\-\-colon\-separate\fR +Separate info about each user with a colon instead of a newline. +.TP +\fB\-e\fR, \fB\-\-export\fR +Output data in the format of NAME=VALUE. +.TP +\fB\-J\fR, \fB\-\-json\fR +Use the JSON output format. +.TP +\fB\-n\fR, \fB\-\-newline\fR +Display each piece of information on a separate line. +.TP +\fB\-\-noheadings\fR +Do not print a header line. +.TP +\fB\-\-notruncate\fR +Don't truncate output. +.TP +\fB\-o\fR, \fB\-\-output \fIlist\fP +Specify which output columns to print. Use +.B \-\-help +to get a list of all supported columns. +.TP +\fB\-p\fR, \fB\-\-pid\fR +Show PIDs of creator and last operator. +.TP +\fB\-r\fR, \fB\-\-raw\fR +Raw output (no columnation). +.TP +\fB\-t\fR, \fB\-\-time\fR +Write time information. The time of the last control operation that changed +the access permissions for all facilities, the time of the last +.I msgsnd() +and +.I msgrcv() +operations on message queues, the time of the last +.I shmat() +and +.I shmdt() +operations on shared memory, and the time of the last +.I semop() +operation on semaphores. +.TP +\fB\-\-time\-format\fR \fItype\fP +Display dates in short, full or iso format. The default is short, this time +format is designed to be space efficient and human readable. +.TP +\fB\-z\fR, \fB\-\-print0\fR +Delimit user entries with a nul character, instead of a newline. + +.SH EXIT STATUS +.TP +0 +if OK, +.TP +1 +if incorrect arguments specified, +.TP +2 +if a serious error occurs. +.SH SEE ALSO +.BR ipcrm (1), +.BR ipcmk (1), +.BR msgrcv (2), +.BR msgsnd (2), +.BR semget (2), +.BR semop (2), +.BR shmat (2), +.BR shmdt (2), +.BR shmget (2) +.SH HISTORY +The \fBlsipc\fP utility is inspired by the \fBipcs\fP utility. +.SH AUTHORS +.MT ooprala@redhat.com +Ondrej Oprala +.ME +.br +.MT kzak@redhat.com +Karel Zak +.ME + +.SH AVAILABILITY +The lsipc command is part of the util-linux package and is available from +.UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/ +Linux Kernel Archive +.UE . diff --git a/sys-utils/lsipc.c b/sys-utils/lsipc.c new file mode 100644 index 000000000..a30850c17 --- /dev/null +++ b/sys-utils/lsipc.c @@ -0,0 +1,1259 @@ +/* + * lsipc - List information about IPC instances employed in the system + * + * Copyright (C) 2015 Ondrej Oprala + * Copyright (C) 2015 Karel Zak + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * + * lsipc is inspired by the ipcs utility. The aim is to create + * a utility unencumbered by a standard to provide more flexible + * means of controlling the output. + */ + +#include +#include +#include +#include +#include + +#include + +#include "c.h" +#include "nls.h" +#include "closestream.h" +#include "strutils.h" +#include "optutils.h" +#include "xalloc.h" + +#include "ipcutils.h" + +/* + * time modes + * */ +enum { + TIME_INVALID = 0, + TIME_SHORT, + TIME_FULL, + TIME_ISO, +}; + +/* + * IDs + */ +enum { + /* common */ + COL_KEY = 0, + COL_ID, + COL_OWNER, + COL_PERMS, + COL_CUID, + COL_CGID, + COL_UID, + COL_GID, + COL_CTIME, + /* msgq-specific */ + COL_USEDBYTES, + COL_MSGS, + COL_SEND, + COL_RECV, + COL_LSPID, + COL_LRPID, + /* shm-specific */ + COL_SIZE, + COL_NATTCH, + COL_STATUS, + COL_ATTACH, + COL_DETACH, + COL_CPID, + COL_LPID, + /* sem-specific */ + COL_NSEMS, + COL_OTIME, + COL_RESOURCE, + COL_DESC, + COL_USED, + COL_LIMIT, +}; + +/* we use the value of outmode to determine + * appropriate flags for the libsmartcols table + * (e.g., a value of out_newline would imply a raw + * table with the column separator set to '\n'). + */ +static int outmode; + +/* not all columns apply to all options, so we specify a legal range for each */ +static size_t LOWER, UPPER; + +/* + * output modes + */ +enum { + OUT_COLON = 1, + OUT_EXPORT, + OUT_NEWLINE, + OUT_RAW, + OUT_NUL, + OUT_PRETTY +}; + +struct lsipc_control { + unsigned int noheadings : 1, /* don't print header line */ + notrunc : 1, /* don't truncate columns */ + json : 1, /* JSON output */ + bytes : 1, /* SIZE in bytes */ + numperms : 1, /* numeric permissions */ + time_mode : 2; +}; + +struct lsipc_coldesc { + const char *name; + const char *help; + const char *pretty_name; + + double whint; /* width hint */ + long flag; +}; + +static const struct lsipc_coldesc coldescs[] = +{ + /* common */ + [COL_KEY] = { "KEY", N_("Resource key"), N_("Key"), 1}, + [COL_ID] = { "ID", N_("Resource ID"), N_("ID"), 1}, + [COL_OWNER] = { "OWNER", N_("Owner"), N_("Owner"), 1, SCOLS_FL_RIGHT}, + [COL_PERMS] = { "PERMS", N_("Permissions"), N_("Permissions"), 1, SCOLS_FL_RIGHT}, + [COL_CUID] = { "CUID", N_("Creator UID"), N_("CUID"), 1, SCOLS_FL_RIGHT}, + [COL_CGID] = { "CGID", N_("Creator GID"), N_("CGID"), 1, SCOLS_FL_RIGHT}, + [COL_UID] = { "UID", N_("User ID"), N_("UID"), 1, SCOLS_FL_RIGHT}, + [COL_GID] = { "GID", N_("Group ID"), N_("GID"), 1, SCOLS_FL_RIGHT}, + [COL_CTIME] = { "CTIME", N_("Time of the last change"), N_("Last change"), 1, SCOLS_FL_RIGHT}, + + /* msgq-specific */ + [COL_USEDBYTES] = { "USEDBYTES",N_("Bytes used"), N_("Bytes used"), 1, SCOLS_FL_RIGHT}, + [COL_MSGS] = { "MSGS", N_("Number of messages"), N_("Messages"), 1}, + [COL_SEND] = { "SEND", N_("Time of last msg sent"), N_("Msg sent"), 1, SCOLS_FL_RIGHT}, + [COL_RECV] = { "RECV", N_("Time of last msg received"), N_("Msg received"), 1, SCOLS_FL_RIGHT}, + [COL_LSPID] = { "LSPID", N_("PID of the last msg sender"), N_("Msg sender"), 1, SCOLS_FL_RIGHT}, + [COL_LRPID] = { "LRPID", N_("PID of the last msg receiver"), N_("Msg receiver"), 1, SCOLS_FL_RIGHT}, + + /* shm-specific */ + [COL_SIZE] = { "SIZE", N_("Segment size"), N_("Segment size"), 1, SCOLS_FL_RIGHT}, + [COL_NATTCH] = { "NATTCH", N_("Number of attached processes"), N_("Attached processes"), 1, SCOLS_FL_RIGHT}, + [COL_STATUS] = { "STATUS", N_("Status"), N_("Status"), 1, SCOLS_FL_NOEXTREMES}, + [COL_ATTACH] = { "ATTACH", N_("Attach time"), N_("Attach time"), 1, SCOLS_FL_RIGHT}, + [COL_DETACH] = { "DETACH", N_("Detach time"), N_("Detach time"), 1, SCOLS_FL_RIGHT}, + [COL_CPID] = { "CPID", N_("PID of the creator"), N_("Creator PID"), 1, SCOLS_FL_RIGHT}, + [COL_LPID] = { "LPID", N_("PID of last user"), N_("Last user PID"), 1, SCOLS_FL_RIGHT}, + + /* sem-specific */ + [COL_NSEMS] = { "NSEMS", N_("Number of semaphores"), N_("Semaphores"), 1, SCOLS_FL_RIGHT}, + [COL_OTIME] = { "OTIME", N_("Time of the last operation"), N_("Last operation"), 1, SCOLS_FL_RIGHT}, + + /* cols for summarized information */ + [COL_RESOURCE] = { "RESOURCE", N_("Resource name"), N_("Resource"), 1 }, + [COL_DESC] = { "DESCRIPTION",N_("Resource description"), N_("Description"), 1 }, + [COL_USED] = { "USED", N_("Currently used"), N_("Used"), 1 }, + [COL_LIMIT] = { "LIMIT", N_("System-wide limit"), N_("Limit"), 1, SCOLS_FL_RIGHT }, +}; + + +/* columns[] array specifies all currently wanted output column. The columns + * are defined by coldescs[] array and you can specify (on command line) each + * column twice. That's enough, dynamically allocated array of the columns is + * unnecessary overkill and over-engineering in this case */ +static int columns[ARRAY_SIZE(coldescs) * 2]; +static int ncolumns; + +static inline size_t err_columns_index(size_t arysz, size_t idx) +{ + if (idx >= arysz) + errx(EXIT_FAILURE, _("too many columns specified, " + "the limit is %zu columns"), + arysz - 1); + return idx; +} + +#define add_column(ary, n, id) \ + ((ary)[ err_columns_index(ARRAY_SIZE(ary), (n)) ] = (id)) + +static int column_name_to_id(const char *name, size_t namesz) +{ + size_t i; + + for (i = 0; i < ARRAY_SIZE(coldescs); i++) { + const char *cn = coldescs[i].name; + + if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) { + if (i > COL_CTIME) { + if (i >= LOWER && i <= UPPER) + return i; + else { + warnx(_("column %s does not apply to the specified IPC"), name); + return -1; + } + } else + return i; + } + } + warnx(_("unknown column: %s"), name); + return -1; +} + +static int parse_time_mode(const char *optarg) +{ + struct lsipc_timefmt { + const char *name; + const int val; + }; + static const struct lsipc_timefmt timefmts[] = { + {"iso", TIME_ISO}, + {"full", TIME_FULL}, + {"short", TIME_SHORT}, + }; + size_t i; + + for (i = 0; i < ARRAY_SIZE(timefmts); i++) { + if (strcmp(timefmts[i].name, optarg) == 0) + return timefmts[i].val; + } + errx(EXIT_FAILURE, _("unknown time format: %s"), optarg); +} + +static void __attribute__ ((__noreturn__)) usage(FILE * out) +{ + size_t i; + + fputs(USAGE_HEADER, out); + fputs(USAGE_HEADER, out); + fprintf(out, _(" %s [options]\n"), program_invocation_short_name); + + fputs(USAGE_SEPARATOR, out); + fputs(_("Show information on IPC facilities.\n"), out); + + fputs(USAGE_OPTIONS, out); + fputs(USAGE_HELP, out); + fputs(USAGE_VERSION, out); + + fputs(USAGE_SEPARATOR, out); + fputs(_("Resource options:\n"), out); + fputs(_(" -m, --shmems shared memory segments\n"), out); + fputs(_(" -q, --queues message queues\n"), out); + fputs(_(" -s, --semaphores semaphores\n"), out); + fputs(_(" -i, --id print details on resource identified by \n"), out); + + fputs(USAGE_SEPARATOR, out); + fputs(_("Output options:\n"), out); + fputs(_(" --colon-separate display data in a format similar to /etc/passwd\n"), out); + fputs(_(" --noheadings don't print headings\n"), out); + fputs(_(" --notruncate don't truncate output\n"), out); + fputs(_(" --time-format= display dates in short, full or iso format\n"), out); + fputs(_(" -b, --bytes print SIZE in bytes rather than in human readable format\n"), out); + fputs(_(" -c, --creator show creator and owner\n"), out); + fputs(_(" -e, --export display in an export-able output format\n"), out); + fputs(_(" -g, --global display info about about system-wide usage\n"), out); + fputs(_(" -J, --json use the JSON output format\n"), out); + fputs(_(" -n, --newline display each piece of information on a new line\n"), out); + fputs(_(" -o, --output[=] define the columns to output\n"), out); + fputs(_(" -P, --numeric-perms print numeric permissions (PERMS column)\n"), out); + fputs(_(" -r, --raw display in raw mode\n"), out); + fputs(_(" -t, --time show attach, detach and change times\n"), out); + fputs(_(" -z, --print0 delimit user entries with a nul character\n"), out); + + fprintf(out, _("\nAvailable columns:\n")); + + fprintf(out, _("GENERAL COLUMNS:\n")); + for (i = 0; i < ARRAY_SIZE(coldescs); i++) { + if (i == COL_USEDBYTES) + fprintf(out, _("MESSAGE QUEUES:\n")); + if (i == COL_SIZE) + fprintf(out, _("SHARED MEMORY:\n")); + if (i == COL_NSEMS) + fprintf(out, _("SEMAPHORES:\n")); + if (i == COL_RESOURCE) + fprintf(out, _("SUMMARIZED INFO:\n")); + fprintf(out, " %14s %s\n", coldescs[i].name, + _(coldescs[i].help)); + } + + fprintf(out, USAGE_MAN_TAIL("lsipc(1)")); + + exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); +} + +static struct libscols_table *setup_table(struct lsipc_control *ctl) +{ + struct libscols_table *table = scols_new_table(); + int n = 0; + + if (!table) + errx(EXIT_FAILURE, _("failed to initialize output table")); + if (ctl->noheadings) + scols_table_enable_noheadings(table, 1); + if (ctl->json) + scols_table_enable_json(table, 1); + + switch(outmode) { + case OUT_COLON: + scols_table_enable_raw(table, 1); + scols_table_set_column_separator(table, ":"); + break; + case OUT_NEWLINE: + scols_table_set_column_separator(table, "\n"); + /* fallthrough */ + case OUT_EXPORT: + scols_table_enable_export(table, 1); + break; + case OUT_NUL: + scols_table_set_line_separator(table, "\0"); + /* fallthrough */ + case OUT_RAW: + scols_table_enable_raw(table, 1); + break; + case OUT_PRETTY: + scols_table_enable_noheadings(table, 1); + default: + break; + } + + while (n < ncolumns) { + int flags = coldescs[columns[n]].flag; + + if (ctl->notrunc) + flags &= ~SCOLS_FL_TRUNC; + + if (!scols_table_new_column(table, + coldescs[columns[n]].name, + coldescs[columns[n]].whint, + flags)) + goto fail; + ++n; + } + return table; +fail: + scols_unref_table(table); + return NULL; +} + +static int print_pretty(struct libscols_table *table) +{ + struct libscols_iter *itr = scols_new_iter(SCOLS_ITER_FORWARD); + struct libscols_column *col; + struct libscols_cell *data; + struct libscols_line *ln; + const char *hstr, *dstr, *estr; + int n = 0; + + ln = scols_table_get_line(table, 0); + while (!scols_table_next_column(table, itr, &col)) { + + data = scols_line_get_cell(ln, n); + + hstr = N_(coldescs[columns[n]].pretty_name); + dstr = scols_cell_get_data(data); + + if (dstr) + printf("%s:%*c%-36s\n", hstr, 35 - (int)strlen(hstr), ' ', dstr); + ++n; + } + + /* this is used to pretty-print detailed info about a semaphore array */ + if (ln) { + estr = scols_line_get_userdata(ln); + if (estr) { + printf("%s", (const char *)estr); + free((void *)estr); + } + } + + scols_free_iter(itr); + return 0; + +} + +static int print_table(struct libscols_table *tb) +{ + if (outmode == OUT_PRETTY) + print_pretty(tb); + else + scols_print_table(tb); + return 0; +} +static struct timeval now; + +static int date_is_today(time_t t) +{ + if (now.tv_sec == 0) + gettimeofday(&now, NULL); + return t / (3600 * 24) == now.tv_sec / (3600 * 24); +} + +static int date_is_thisyear(time_t t) +{ + if (now.tv_sec == 0) + gettimeofday(&now, NULL); + return t / (3600 * 24 * 365) == now.tv_sec / (3600 * 24 * 365); +} + +static char *make_time(int mode, time_t time) +{ + char *s; + struct tm tm; + char buf[64] = {0}; + + localtime_r(&time, &tm); + + switch(mode) { + case TIME_FULL: + asctime_r(&tm, buf); + if (*(s = buf + strlen(buf) - 1) == '\n') + *s = '\0'; + break; + case TIME_SHORT: + if (date_is_today(time)) + strftime(buf, sizeof(buf), "%H:%M", &tm); + else if (date_is_thisyear(time)) + strftime(buf, sizeof(buf), "%b%d", &tm); + else + strftime(buf, sizeof(buf), "%Y-%b%d", &tm); + break; + case TIME_ISO: + strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", &tm); + break; + default: + errx(EXIT_FAILURE, _("unsupported time type")); + } + return xstrdup(buf); +} + +static void do_sem(int id, struct lsipc_control *ctl, struct libscols_table *tb) +{ + int n = 0; + struct libscols_line *ln; + struct passwd *pw = NULL, *cpw = NULL; + struct group *gr = NULL, *cgr = NULL; + struct sem_data *semds, *semdsp; + char *arg = NULL, *time; + + if (ipc_sem_get_info(id, &semds) < 1) { + if (id > -1) + warnx(_("id %d not found"), id); + return; + } + for (semdsp = semds; semdsp->next != NULL || id > -1; semdsp = semdsp->next) { + ln = scols_table_new_line(tb, NULL); + + /* no need to call getpwuid() for the same user */ + if (!(pw && pw->pw_uid == semdsp->sem_perm.uid)) + pw = getpwuid(semdsp->sem_perm.uid); + + /* no need to call getgrgid() for the same group */ + if (!(gr && gr->gr_gid == semdsp->sem_perm.gid)) + gr = getgrgid(semdsp->sem_perm.gid); + + /* no need to call getpwuid() for the same user */ + if (!(cpw && cpw->pw_uid == semdsp->sem_perm.cuid)) + cpw = getpwuid(semdsp->sem_perm.cuid); + + /* no need to call getcgrgid() for the same cgroup */ + if (!(cgr && cgr->gr_gid == semdsp->sem_perm.cgid)) + cgr = getgrgid(semdsp->sem_perm.cgid); + n = 0; + while (n < ncolumns) { + int rc = 0; + + switch (columns[n]) { + case COL_KEY: + xasprintf(&arg, "0x%08x",semdsp->sem_perm.key); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_ID: + xasprintf(&arg, "%d",semdsp->sem_perm.id); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_OWNER: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", semdsp->sem_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_PERMS: + if (ctl->numperms) + xasprintf(&arg, "%#o", semdsp->sem_perm.mode & 0777); + else { + arg = xmalloc(11); + strmode(semdsp->sem_perm.mode & 0777, arg); + } + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CUID: + if (cpw) + xasprintf(&arg, "%s", cpw->pw_name); + else + xasprintf(&arg, "%u", semdsp->sem_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CGID: + if (cgr) + xasprintf(&arg, "%s", cgr->gr_name); + else + xasprintf(&arg, "%u", semdsp->sem_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_UID: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", semdsp->sem_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_GID: + if (gr) + xasprintf(&arg, "%s", gr->gr_name); + else + xasprintf(&arg, "%u", semdsp->sem_perm.gid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CTIME: + if (semdsp->sem_ctime != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)semdsp->sem_ctime)); + free(time); + } + break; + case COL_NSEMS: + xasprintf(&arg, "%ju", semdsp->sem_nsems); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_OTIME: + if (semdsp->sem_otime != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)semdsp->sem_otime)); + free(time); + } + break; + } + if (rc != 0) + err(EXIT_FAILURE, _("failed to set data")); + ++n; + free(arg); + arg = NULL; + } + /* no empty element when ID was specified */ + if (id > -1) { + size_t i = 0, offt; + /* line length * (header + nsems) + '\0' */ + char *data = xcalloc(1, sizeof(char) * 55 * (semds->sem_nsems + 1) + 1); + + /* same as in ipcs.c */ + offt = sprintf(data, "%-10s %-10s %-10s %-10s %-10s\n", + _("semnum"), _("value"), _("ncount"), _("zcount"), _("pid")); + + for (i = 0; i < semds->sem_nsems; i++) { + struct sem_elem *e = &semds->elements[i]; + offt += sprintf(data + offt, "%-10zd %-10d %-10d %-10d %-10d\n", + i, e->semval, e->ncount, e->zcount, e->pid); + } + scols_line_set_userdata(ln, (void *)data); + break; + } + } + ipc_sem_free_info(semds); +} + +static void do_sem_global(struct libscols_table *tb) +{ + struct sem_data *semds, *semdsp; + struct ipc_limits lim; + int sems = 0, sets = 0, n = 0; + struct libscols_line *ln; + char *result = NULL; + + if (ipc_sem_get_info(-1, &semds) < 1) + return; + ipc_sem_get_limits(&lim); + + for (semdsp = semds; semdsp->next != NULL; semdsp = semdsp->next) { + ++sets; + sems += semds->sem_nsems; + } + ln = scols_table_new_line(tb, NULL); + scols_line_set_data(ln, n++, "SEMMNS"); + scols_line_set_data(ln, n++, "Total number of semaphores"); + + xasprintf(&result, "%d", sems); + scols_line_set_data(ln, n++, result); + free(result); + + xasprintf(&result, "%d", lim.semmns); + scols_line_set_data(ln, n, result); + free(result); + + + n = 0; + ln = scols_table_new_line(tb, NULL); + + scols_line_set_data(ln, n++, "SEMMNI"); + scols_line_set_data(ln, n++, "Number of Semaphore IDs"); + + xasprintf(&result, "%d", sets); + scols_line_set_data(ln, n++, result); + free(result); + + xasprintf(&result, "%d", lim.semmni); + scols_line_set_data(ln, n, result); + free(result); + + ipc_sem_free_info(semds); +} + +static void do_msg(int id, struct lsipc_control *ctl, struct libscols_table *tb) +{ + int n = 0; + struct libscols_line *ln; + struct passwd *pw = NULL; + struct group *gr = NULL; + struct msg_data *msgds, *msgdsp; + char *arg = NULL, *time; + + if (ipc_msg_get_info(id, &msgds) < 1) { + if (id > -1) + warnx(_("id %d not found"), id); + return; + } + + for (msgdsp = msgds; msgdsp->next != NULL || id > -1 ; msgdsp = msgdsp->next) { + + ln = scols_table_new_line(tb, NULL); + + /* no need to call getpwuid() for the same user */ + if (!(pw && pw->pw_uid == msgdsp->msg_perm.uid)) + pw = getpwuid(msgdsp->msg_perm.uid); + + /* no need to call getgrgid() for the same user */ + if (!(gr && gr->gr_gid == msgdsp->msg_perm.gid)) + gr = getgrgid(msgdsp->msg_perm.gid); + + n = 0; + while (n < ncolumns) { + int rc = 0; + + switch (columns[n]) { + case COL_KEY: + xasprintf(&arg, "0x%08x",msgdsp->msg_perm.key); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_ID: + xasprintf(&arg, "%d",msgdsp->msg_perm.id); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_OWNER: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", msgdsp->msg_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_PERMS: + if (ctl->numperms) + xasprintf(&arg, "%#o", msgdsp->msg_perm.mode & 0777); + else { + arg = xmalloc(11); + strmode(msgdsp->msg_perm.mode & 0777, arg); + rc = scols_line_set_data(ln, n, arg); + } + break; + case COL_CUID: + if (msgdsp->msg_perm.cuid == msgdsp->msg_perm.uid + || (pw = getpwuid(msgdsp->msg_perm.cuid))) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", msgdsp->msg_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CGID: + if (msgdsp->msg_perm.cgid == msgdsp->msg_perm.gid + || (gr = getgrgid(msgdsp->msg_perm.cgid))) + xasprintf(&arg, "%s", gr->gr_name); + else + xasprintf(&arg, "%u", msgdsp->msg_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_UID: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", msgdsp->msg_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_GID: + if (gr) + xasprintf(&arg, "%s", gr->gr_name); + else + xasprintf(&arg, "%u", msgdsp->msg_perm.gid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CTIME: + if (msgdsp->q_ctime != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)msgdsp->q_ctime)); + free(time); + } + break; + case COL_USEDBYTES: + xasprintf(&arg, "%ju", msgdsp->q_cbytes); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_MSGS: + xasprintf(&arg, "%ju", msgdsp->q_qnum); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_SEND: + if (msgdsp->q_stime != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)msgdsp->q_stime)); + free(time); + } + break; + case COL_RECV: + if (msgdsp->q_rtime != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)msgdsp->q_rtime)); + free(time); + } + break; + case COL_LSPID: + xasprintf(&arg, "%u", msgdsp->q_lspid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_LRPID: + xasprintf(&arg, "%u", msgdsp->q_lrpid); + rc = scols_line_set_data(ln, n, arg); + break; + } + if (rc != 0) + err(EXIT_FAILURE, _("failed to set data")); + ++n; + free(arg); + arg = NULL; + } + if (id > -1) + break; + } + ipc_msg_free_info(msgds); +} + +static void do_msg_global(struct libscols_table *tb) +{ + struct msg_data *msgds, *msgdsp; + struct ipc_limits lim; + struct libscols_line *ln = scols_table_new_line(tb, NULL); + int msgqs = 0, n = 0; + char *result; + + if (ipc_msg_get_info(-1, &msgds) < 1) + return; + ipc_msg_get_limits(&lim); + + for (msgdsp = msgds; msgdsp->next != NULL; msgdsp = msgdsp->next) { + ++msgqs; + } + + scols_line_set_data(ln, n++, "MSGMNI"); + scols_line_set_data(ln, n++, "Number of message queues"); + + xasprintf(&result, "%d", msgqs); + scols_line_set_data(ln, n++, result); + free(result); + + xasprintf(&result, "%d", lim.msgmni); + scols_line_set_data(ln, n, result); + free(result); + + ipc_msg_free_info(msgds); +} + +static void do_shm(int id, struct lsipc_control *ctl, struct libscols_table *tb) +{ + int n = 0; + struct libscols_line *ln; + struct passwd *pw = NULL; + struct group *gr = NULL; + struct shm_data *shmds, *shmdsp; + char *arg = NULL, *time; + + if (ipc_shm_get_info(id, &shmds) < 1) { + if (id > -1) + warnx(_("id %d not found"), id); + return; + } + + for (shmdsp = shmds; shmdsp->next != NULL || id > -1 ; shmdsp = shmdsp->next) { + + ln = scols_table_new_line(tb, NULL); + + /* no need to call getpwuid() for the same user */ + if (!(pw && pw->pw_uid == shmdsp->shm_perm.uid)) + pw = getpwuid(shmdsp->shm_perm.uid); + + /* no need to call getgrgid() for the same user */ + if (!(gr && gr->gr_gid == shmdsp->shm_perm.gid)) + gr = getgrgid(shmdsp->shm_perm.gid); + + n = 0; + while (n < ncolumns) { + int rc = 0; + + switch (columns[n]) { + case COL_KEY: + xasprintf(&arg, "0x%08x",shmdsp->shm_perm.key); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_ID: + xasprintf(&arg, "%d",shmdsp->shm_perm.id); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_OWNER: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", shmdsp->shm_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_PERMS: + if (ctl->numperms) + xasprintf(&arg, "%#o", shmdsp->shm_perm.mode & 0777); + else { + arg = xmalloc(11); + strmode(shmdsp->shm_perm.mode & 0777, arg); + } + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CUID: + if (shmdsp->shm_perm.cuid == shmdsp->shm_perm.uid + || (pw = getpwuid(shmdsp->shm_perm.cuid))) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", shmdsp->shm_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CGID: + if (shmdsp->shm_perm.cgid == shmdsp->shm_perm.gid + || (gr = getgrgid(shmdsp->shm_perm.cgid))) + xasprintf(&arg, "%s", gr->gr_name); + else + xasprintf(&arg, "%u", shmdsp->shm_perm.cuid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_UID: + if (pw) + xasprintf(&arg, "%s", pw->pw_name); + else + xasprintf(&arg, "%u", shmdsp->shm_perm.uid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_GID: + if (gr) + xasprintf(&arg, "%s", gr->gr_name); + else + xasprintf(&arg, "%u", shmdsp->shm_perm.gid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_CTIME: + if (shmdsp->shm_ctim != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)shmdsp->shm_ctim)); + free(time); + } + break; + case COL_SIZE: + if (ctl->bytes) + xasprintf(&arg, "%ju", shmdsp->shm_segsz); + else + arg = size_to_human_string(SIZE_SUFFIX_1LETTER, shmdsp->shm_segsz); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_NATTCH: + xasprintf(&arg, "%ju", shmdsp->shm_nattch); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_STATUS: { + int comma = 0; + size_t offt = 0; + free (arg); + arg = xcalloc(1, sizeof(char) * strlen(_("dest")) + + strlen(_("locked")) + + strlen(_("hugetlb")) + + strlen(_("noreserve")) + 4); + + if (shmdsp->shm_perm.mode & SHM_DEST) { + offt += sprintf(arg, "%s", _("dest")); + comma++; + } + if (shmdsp->shm_perm.mode & SHM_LOCKED) { + if (comma) + arg[offt++] = ','; + offt += sprintf(arg + offt, "%s", _("locked")); + } + if (shmdsp->shm_perm.mode & SHM_HUGETLB) { + if (comma) + arg[offt++] = ','; + offt += sprintf(arg + offt, "%s", _("hugetlb")); + } + if (shmdsp->shm_perm.mode & SHM_NORESERVE) { + if (comma) + arg[offt++] = ','; + offt += sprintf(arg + offt, "%s", _("noreserve")); + } + rc = scols_line_set_data(ln, n, arg); + } + break; + case COL_ATTACH: + if (shmdsp->shm_atim != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)shmdsp->shm_atim)); + free(time); + } + break; + case COL_DETACH: + if (shmdsp->shm_dtim != 0) { + rc = scols_line_set_data(ln, n, + time = make_time(ctl->time_mode, + (time_t)shmdsp->shm_dtim)); + free(time); + } + break; + case COL_CPID: + xasprintf(&arg, "%u", shmdsp->shm_cprid); + rc = scols_line_set_data(ln, n, arg); + break; + case COL_LPID: + xasprintf(&arg, "%u", shmdsp->shm_lprid); + rc = scols_line_set_data(ln, n, arg); + break; + } + if (rc != 0) + err(EXIT_FAILURE, _("failed to set data")); + ++n; + free(arg); + arg = NULL; + } + if (id > -1) + break; + } + ipc_shm_free_info(shmds); +} + +static void do_shm_global(struct libscols_table *tb) +{ + struct shm_data *shmds, *shmdsp; + int n = 0; + uint64_t segs = 0, segsz = 0; + struct ipc_limits lim; + struct libscols_line *ln; + char *result = NULL; + + if (ipc_shm_get_info(-1, &shmds) < 1) + return; + ipc_shm_get_limits(&lim); + + for (shmdsp = shmds; shmdsp->next != NULL; shmdsp = shmdsp->next) { + ++segs; + segsz += shmdsp->shm_segsz; + } + + ln = scols_table_new_line(tb, NULL); + + scols_line_set_data(ln, n++, "SHMMNI"); + scols_line_set_data(ln, n++, "Shared memory segments"); + + xasprintf(&result, "%lu", segs); + scols_line_set_data(ln, n++, result); + free(result); + + xasprintf(&result, "%lu", lim.shmmni); + scols_line_set_data(ln, n, result); + free(result); + + + n = 0; + ln = scols_table_new_line(tb, NULL); + + scols_line_set_data(ln, n++, "SHMALL"); + scols_line_set_data(ln, n++, "Shared memory pages"); + + xasprintf(&result, "%lu", segsz / getpagesize()); + scols_line_set_data(ln, n++, result); + free(result); + + xasprintf(&result, "%lu", lim.shmall); + scols_line_set_data(ln, n, result); + free(result); + + ipc_shm_free_info(shmds); +} + +int main(int argc, char *argv[]) +{ + int opt, msg = 0, sem = 0, shm = 0, opt_o = 0, id = -1; + int show_time = 0, show_creat = 0, global = 0; + size_t i; + struct lsipc_control *ctl = xcalloc(1, sizeof(struct lsipc_control)); + static struct libscols_table *tb; + char *opts = NULL; + + /* long only options. */ + enum { + OPT_NOTRUNC = CHAR_MAX + 1, + OPT_NOHEAD, + OPT_TIME_FMT, + OPT_COLON, + }; + + static const struct option longopts[] = { + { "bytes", no_argument, 0, 'b' }, + { "colon-separate", no_argument, 0, OPT_COLON }, + { "creator", no_argument, 0, 'c' }, + { "export", no_argument, 0, 'e' }, + { "global", no_argument, 0, 'g' }, + { "help", no_argument, 0, 'h' }, + { "id", required_argument, 0, 'i' }, + { "json", no_argument, 0, 'J' }, + { "newline", no_argument, 0, 'n' }, + { "noheadings", no_argument, 0, OPT_NOHEAD }, + { "notruncate", no_argument, 0, OPT_NOTRUNC }, + { "numeric-perms", no_argument, 0, 'P' }, + { "output", required_argument, 0, 'o' }, + { "pid", no_argument, 0, 'p' }, + { "print0", no_argument, 0, 'z' }, + { "queues", no_argument, 0, 'q' }, + { "raw", no_argument, 0, 'r' }, + { "semaphores", no_argument, 0, 's' }, + { "shmems", no_argument, 0, 'm' }, + { "time", no_argument, 0, 't' }, + { "time-format", required_argument, 0, OPT_TIME_FMT }, + { "version", no_argument, 0, 'V' }, + {NULL, 0, NULL, 0} + }; + + static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ + { 'J', 'e', 'n', 'r', 'z', OPT_COLON }, + { 'c', 'g', 'i', 'o', 't' }, + { 'm', 'q', 's' }, + { 0 } + }; + int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; + + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); + atexit(close_stdout); + + ctl->time_mode = TIME_SHORT; + + while ((opt = getopt_long(argc, argv, "bceghi:Jmno:PqrstuVz", longopts, NULL)) != -1) { + + err_exclusive_options(opt, longopts, excl, excl_st); + + switch (opt) { + case 'b': + ctl->bytes = 1; + break; + case 'i': + id = atoi (optarg); + outmode = OUT_PRETTY; + break; + case OPT_COLON: + outmode = OUT_COLON; + break; + case 'e': + outmode = OUT_EXPORT; + break; + case 'r': + outmode = OUT_RAW; + break; + case 'o': + if (optarg) { + if (*optarg == '=') + optarg++; + opts = xstrdup(optarg); + } + opt_o = 1; + break; + case 'g': + global = 1; + break; + case 'q': + msg = 1; + LOWER = COL_USEDBYTES; + UPPER = COL_LRPID; + break; + case 'm': + shm = 1; + LOWER = COL_SIZE; + UPPER = COL_LPID; + break; + case 'n': + outmode = OUT_NEWLINE; + break; + case 'P': + ctl->numperms = 1; + break; + case 's': + sem = 1; + LOWER = COL_NSEMS; + UPPER = COL_OTIME; + break; + case OPT_NOTRUNC: + ctl->notrunc = 1; + break; + case OPT_NOHEAD: + ctl->noheadings = 1; + break; + case OPT_TIME_FMT: + ctl->time_mode = parse_time_mode(optarg); + break; + case 'J': + ctl->json = 1; + break; + case 't': + show_time = 1; + break; + case 'c': + show_creat = 1; + break; + case 'h': + usage(stdout); + case 'V': + printf(UTIL_LINUX_VERSION); + return EXIT_SUCCESS; + case 'z': + outmode = OUT_NUL; + break; + default: + usage(stderr); + } + } + + if (msg + shm + sem != 1) + errx (EXIT_FAILURE, + _("One of --shmems, --queues or --semaphores must be specified")); + + if (global) { + add_column(columns, ncolumns++, COL_RESOURCE); + add_column(columns, ncolumns++, COL_DESC); + add_column(columns, ncolumns++, COL_USED); + add_column(columns, ncolumns++, COL_LIMIT); + } else if (opt_o) { + ncolumns = string_to_idarray(opts, + columns, ARRAY_SIZE(columns), + column_name_to_id); + if (ncolumns < 0) + return EXIT_FAILURE; + } else { + if (outmode == OUT_PRETTY) { + /* all columns for lsipc -- --id */ + for (ncolumns = 0, i = 0; i < ARRAY_SIZE(coldescs); i++) + columns[ncolumns++] = i; + } else { + /* default columns */ + add_column(columns, ncolumns++, COL_KEY); + add_column(columns, ncolumns++, COL_ID); + add_column(columns, ncolumns++, COL_PERMS); + add_column(columns, ncolumns++, COL_OWNER); + + if (show_creat) { + add_column(columns, ncolumns++, COL_CUID); + add_column(columns, ncolumns++, COL_CGID); + add_column(columns, ncolumns++, COL_UID); + add_column(columns, ncolumns++, COL_GID); + } + + if (msg) { + add_column(columns, ncolumns++, COL_USEDBYTES); + add_column(columns, ncolumns++, COL_MSGS); + + if (show_time) { + add_column(columns, ncolumns++, COL_SEND); + add_column(columns, ncolumns++, COL_RECV); + add_column(columns, ncolumns++, COL_CTIME); + } + + add_column(columns, ncolumns++, COL_LSPID); + add_column(columns, ncolumns++, COL_LRPID); + } + else if (shm) { + add_column(columns, ncolumns++, COL_SIZE); + add_column(columns, ncolumns++, COL_NATTCH); + add_column(columns, ncolumns++, COL_STATUS); + + if (show_time) { + add_column(columns, ncolumns++, COL_ATTACH); + add_column(columns, ncolumns++, COL_DETACH); + add_column(columns, ncolumns++, COL_CTIME); + } + + add_column(columns, ncolumns++, COL_CPID); + add_column(columns, ncolumns++, COL_LPID); + } + else if (sem) { + add_column(columns, ncolumns++, COL_NSEMS); + + if (show_time) { + add_column(columns, ncolumns++, COL_OTIME); + add_column(columns, ncolumns++, COL_CTIME); + } + } + } + } + + tb = setup_table(ctl); + if (!tb) + return EXIT_FAILURE; + + if (msg) { + if (global) + do_msg_global(tb); + else + do_msg(id, ctl, tb); + } else if (shm) { + if (global) + do_shm_global(tb); + else + do_shm(id, ctl, tb); + } else if (sem) { + if (global) + do_sem_global(tb); + else + do_sem(id, ctl, tb); + } + + print_table(tb); + + scols_unref_table(tb); + free(ctl); + + return EXIT_SUCCESS; +} + -- cgit v1.2.3-55-g7522