Rodney Radford submitted ipcs and ipcrm (system V IPC stuff). They could use
some more work to shrink them down.
This commit is contained in:
Rob Landley
parent
df1eda82b9
commit
6eb1e41674
3
AUTHORS
3
AUTHORS
@ -113,6 +113,9 @@ Bruce Perens <bruce@pixar.com>
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Original author of BusyBox in 1995, 1996. Some of his code can
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still be found hiding here and there...
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Rodney Radford <rradford@mindspring.com>
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ipcs, ipcrm
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Tim Riker <Tim@Rikers.org>
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bug fixes, member of fan club
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@ -89,15 +89,15 @@ Currently defined functions include:
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fgrep, find, fold, free, freeramdisk, fsck.minix, ftpget, ftpput, getopt,
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getty, grep, gunzip, gzip, halt, hdparm, head, hexdump, hostid, hostname,
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httpd, hush, hwclock, id, ifconfig, ifdown, ifup, inetd, init, insmod,
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install, ip, ipaddr, ipcalc, iplink, iproute, iptunnel, kill, killall,
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klogd, lash, last, length, linuxrc, ln, loadfont, loadkmap, logger, login,
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logname, logread, losetup, ls, lsmod, makedevs, md5sum, mesg, mkdir,
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mkfifo, mkfs.minix, mknod, mkswap, mktemp, modprobe, more, mount, msh, mt,
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mv, nameif, nc, netstat, nslookup, od, openvt, passwd, patch, pidof, ping,
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ping6, pipe_progress, pivot_root, poweroff, printf, ps, pwd, rdate,
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readlink, realpath, reboot, renice, reset, rm, rmdir, rmmod, route, rpm,
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rpm2cpio, run-parts, rx, sed, seq, setkeycodes, sha1sum, sleep, sort,
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start-stop-daemon, strings, stty, su, sulogin, swapoff, swapon, sync,
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install, ip, ipaddr, ipcalc, ipcrm, ipcs, iplink, iproute, iptunnel, kill,
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killall, klogd, lash, last, length, linuxrc, ln, loadfont, loadkmap,
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logger, login, logname, logread, losetup, ls, lsmod, makedevs, md5sum,
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mesg, mkdir, mkfifo, mkfs.minix, mknod, mkswap, mktemp, modprobe, more,
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mount, msh, mt, mv, nameif, nc, netstat, nslookup, od, openvt, passwd,
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patch, pidof, ping, ping6, pipe_progress, pivot_root, poweroff, printf, ps,
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pwd, rdate, readlink, realpath, reboot, renice, reset, rm, rmdir, rmmod,
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route, rpm, rpm2cpio, run-parts, rx, sed, seq, setkeycodes, sha1sum, sleep,
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sort, start-stop-daemon, strings, stty, su, sulogin, swapoff, swapon, sync,
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sysctl, syslogd, tail, tar, tee, telnet, telnetd, test, tftp, time, top,
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touch, tr, traceroute, true, tty, udhcpc, udhcpd, umount, uname,
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uncompress, uniq, unix2dos, unzip, uptime, usleep, uudecode, uuencode,
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@ -320,6 +320,12 @@
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#ifdef CONFIG_IPCALC
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APPLET(ipcalc, ipcalc_main, _BB_DIR_BIN, _BB_SUID_NEVER)
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#endif
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#ifdef CONFIG_IPCRM
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APPLET(ipcrm, ipcrm_main, _BB_DIR_USR_BIN, _BB_SUID_ALWAYS)
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#endif
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#ifdef CONFIG_IPCS
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APPLET(ipcs, ipcs_main, _BB_DIR_USR_BIN, _BB_SUID_ALWAYS)
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#endif
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#ifdef CONFIG_IPLINK
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APPLET(iplink, iplink_main, _BB_DIR_BIN, _BB_SUID_NEVER)
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#endif
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@ -1395,6 +1395,32 @@
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"\t-h\t--hostname\tDisplay first resolved host name\n" \
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"\t-s\t--silent\tDon't ever display error messages.")
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#define ipcrm_trivial_usage \
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"[-[MQS] key] [-[mqs] id]"
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#define ipcrm_full_usage \
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"The upper-case options MQS are used to remove a shared memory\n" \
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"segment by an shmkey value. The lower-case options mqs are used\n" \
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"to remove a segment by shmid value.\n" \
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"\t-m | -M\tRemove the memory segment after the last detatch\n" \
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"\t-q | -Q\tRemove the message queue\n" \
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"\t-s | -S\tRemove the semaphore\n"
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#define ipcs_trivial_usage \
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"[[-smq] -i shmid] | [[-asmq] [-tclup]]"
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#define ipcs_full_usage \
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"\t-i\tspecify a specific resource id\n" \
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"Resource specification:\n" \
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"\t-m\tshared memory segments\n" \
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"\t-q\tmessage queues\n" \
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"\t-s\tsempahore arrays\n" \
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"\t-a\tall (default)\n" \
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"Output format:\n" \
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"\t-t\ttime\n" \
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"\t-p\tpid\n" \
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"\t-s\tcreator\n" \
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"\t-a\tlimits\n" \
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"\t-i\tsummary\n"
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#define iplink_trivial_usage \
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"{ set DEVICE { up | down | arp { on | off } | show [ DEVICE ] }"
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#define iplink_full_usage \
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@ -2080,18 +2106,30 @@
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"$ printf \"Val=%d\\n\" 5\n" \
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"Val=5\n"
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#if !defined(CONFIG_SELINUX) && !defined(CONFIG_PS_FEATURE_WIDE)
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#define USAGE_PS "\n\tThis version of ps accepts no options."
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#else
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#define USAGE_PS "\nOptions:"
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#endif
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#ifdef CONFIG_SELINUX
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#define USAGE_NONSELINUX(a)
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#else
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#define USAGE_NONSELINUX(a) a
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#endif
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#ifdef CONFIG_PS_FEATURE_WIDE
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#define USAGE_PS_WIDE(a) a
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#else
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#define USAGE_PS_WIDE(a)
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#endif
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#define ps_trivial_usage \
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""
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#define ps_full_usage \
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"Report process status\n" \
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USAGE_NONSELINUX("\n\tThis version of ps accepts no options.") \
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USAGE_SELINUX("\nOptions:\n\t-c\tshow SE Linux context")
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USAGE_PS \
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USAGE_SELINUX("\n\t-c\tshow SE Linux context") \
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USAGE_PS_WIDE("\n\tw\twide output")
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#define ps_example_usage \
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"$ ps\n" \
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@ -397,6 +397,8 @@ CONFIG_DMESG=y
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# CONFIG_GETOPT is not set
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CONFIG_HEXDUMP=y
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# CONFIG_HWCLOCK is not set
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# CONFIG_IPCRM is not set
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# CONFIG_IPCS is not set
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# CONFIG_LOSETUP is not set
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# CONFIG_MKSWAP is not set
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CONFIG_MORE=y
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@ -216,6 +216,21 @@ config CONFIG_LOSETUP
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file or block device, and to query the status of a loop device. This
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version does not currently support enabling data encryption.
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config CONFIG_IPCRM
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bool "ipcrm"
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default n
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help
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The ipcrm utility allows the removal of System V interprocess
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communication (IPC) objects and the associated data structures
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from the system.
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config CONFIG_IPCS
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bool "ipcs"
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default n
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help
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The ipcs utility is used to provide information on the currently
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allocated System V interprocess (IPC) objects in the system.
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config CONFIG_MKSWAP
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bool "mkswap"
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default n
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@ -322,14 +337,18 @@ config CONFIG_FEATURE_MOUNT_LOOP
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default n
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depends on CONFIG_MOUNT || CONFIG_UMOUNT
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help
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Enabling this feature allows mount to use the '-o' loop options,
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which lets you loop mount files. Mount will automagically setup and
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free the necessary loop devices so you do not need to mess with the
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'losetup' utility unless you really want to. This is really
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only useful if you plan to loop mount files.
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Enabling this feature allows automatic loopback mounts, meaning you can mount
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filesystems contained in normal files as well as in block devices. The mount
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and umount commands will detect you are trying to mount a file instead of a
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block device, and transparently associate it with a loopback device (and free
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the loopback device on unmount) for you.
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You can still use the 'losetup' utility and mount the loopback device yourself
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if you need to do something advanced, such as specify an offset or cryptographic
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options to the loopback device.
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config CONFIG_FEATURE_MTAB_SUPPORT
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bool " Support for a real /etc/mtab (instead of /proc/mounts)"
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bool " Support for a /etc/mtab file (instead of symlink to /proc/mounts)"
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default n
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depends on CONFIG_MOUNT || CONFIG_UMOUNT
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help
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@ -339,17 +358,9 @@ config CONFIG_FEATURE_MTAB_SUPPORT
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BusyBox have a read-only root filesystem, so they will leave this
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option disabled and BusyBox will use the /proc/mounts file.
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config CONFIG_FEATURE_MTAB_FILENAME
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string " mtab file location"
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default "/etc/mtab"
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depends on CONFIG_FEATURE_MTAB_SUPPORT
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help
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Some people have a read only root filesystem, but they also wish to
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have the 'mount' utility create an mtab file listing the filesystems
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which have been mounted. This option allows you to specify an alternative
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location for the mtab file, such as /var/mtab, or /tmp/mtab. The default
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value is /etc/mtab, which is where this file is located on most desktop
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Linux systems.
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Note that even non-embedded developers probably want to have /etc/mtab
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be a symlink to /proc/mounts, since otherwise mtab can get out of sync
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with the real kernel mount state in numerous ways.
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config CONFIG_READPROFILE
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bool "readprofile"
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@ -34,6 +34,8 @@ UTILLINUX-$(CONFIG_FSCK_MINIX) +=fsck_minix.o
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UTILLINUX-$(CONFIG_GETOPT) +=getopt.o
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UTILLINUX-$(CONFIG_HEXDUMP) +=hexdump.o
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UTILLINUX-$(CONFIG_HWCLOCK) +=hwclock.o
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UTILLINUX-$(CONFIG_IPCRM) +=ipcrm.o
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UTILLINUX-$(CONFIG_IPCS) +=ipcs.o
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UTILLINUX-$(CONFIG_LOSETUP) +=losetup.o
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UTILLINUX-$(CONFIG_MKFS_MINIX) +=mkfs_minix.o
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UTILLINUX-$(CONFIG_MKSWAP) +=mkswap.o
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273
util-linux/ipcrm.c
Normal file
273
util-linux/ipcrm.c
Normal file
@ -0,0 +1,273 @@
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/*
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* ipcrm.c -- utility to allow removal of IPC objects and data structures.
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*
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* 01 Sept 2004 - Rodney Radford <rradford@mindspring.com>
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* Adapted for busybox from util-linux-2.12a.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* --- Pre-busybox history from util-linux-2.12a ------------------------
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*
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* 1999-04-02 frank zago
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* - can now remove several id's in the same call
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*
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* 1999-02-22 Arkadiusz Miÿkiewicz <misiek@pld.ORG.PL>
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* - added Native Language Support
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*
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* Original author - krishna balasubramanian 1993
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/msg.h>
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#include <sys/sem.h>
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/* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */
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/* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */
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/* for getopt */
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#include <unistd.h>
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/* for tolower and isupper */
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#include <ctype.h>
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#include "busybox.h"
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#if defined (__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
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/* union semun is defined by including <sys/sem.h> */
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#else
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/* according to X/OPEN we have to define it ourselves */
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union semun {
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int val;
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struct semid_ds *buf;
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unsigned short int *array;
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struct seminfo *__buf;
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};
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#endif
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typedef enum type_id {
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SHM,
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SEM,
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MSG
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} type_id;
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static int
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remove_ids(type_id type, int argc, char **argv) {
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int id;
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int ret = 0; /* for gcc */
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char *end;
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int nb_errors = 0;
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union semun arg;
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arg.val = 0;
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while(argc) {
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id = strtoul(argv[0], &end, 10);
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if (*end != 0) {
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bb_printf ("invalid id: %s\n", argv[0]);
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nb_errors ++;
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} else {
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switch(type) {
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case SEM:
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ret = semctl (id, 0, IPC_RMID, arg);
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break;
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case MSG:
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ret = msgctl (id, IPC_RMID, NULL);
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break;
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case SHM:
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ret = shmctl (id, IPC_RMID, NULL);
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break;
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}
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if (ret) {
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bb_printf ("cannot remove id %s (%s)\n",
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argv[0], strerror(errno));
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nb_errors ++;
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}
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}
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argc--;
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argv++;
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}
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return(nb_errors);
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}
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static int deprecated_main(int argc, char **argv)
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{
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if (argc < 3) {
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bb_show_usage();
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bb_fflush_stdout_and_exit(1);
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}
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if (!strcmp(argv[1], "shm")) {
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if (remove_ids(SHM, argc-2, &argv[2]))
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bb_fflush_stdout_and_exit(1);
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}
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else if (!strcmp(argv[1], "msg")) {
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if (remove_ids(MSG, argc-2, &argv[2]))
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bb_fflush_stdout_and_exit(1);
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}
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else if (!strcmp(argv[1], "sem")) {
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if (remove_ids(SEM, argc-2, &argv[2]))
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bb_fflush_stdout_and_exit(1);
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}
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else {
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bb_printf ("unknown resource type: %s\n", argv[1]);
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bb_show_usage();
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bb_fflush_stdout_and_exit(1);
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}
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bb_printf ("resource(s) deleted\n");
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return 0;
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}
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int ipcrm_main(int argc, char **argv)
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{
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int c;
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int error = 0;
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char *prog = argv[0];
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/* if the command is executed without parameters, do nothing */
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if (argc == 1)
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return 0;
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/* check to see if the command is being invoked in the old way if so
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then run the old code */
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if (strcmp(argv[1], "shm") == 0 ||
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strcmp(argv[1], "msg") == 0 ||
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strcmp(argv[1], "sem") == 0)
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return deprecated_main(argc, argv);
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/* process new syntax to conform with SYSV ipcrm */
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while ((c = getopt(argc, argv, "q:m:s:Q:M:S:h?")) != -1) {
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int result;
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int id = 0;
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int iskey = isupper(c);
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/* needed to delete semaphores */
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union semun arg;
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arg.val = 0;
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if ((c == '?') || (c == 'h'))
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{
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bb_show_usage();
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return 0;
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}
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/* we don't need case information any more */
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c = tolower(c);
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/* make sure the option is in range */
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if (c != 'q' && c != 'm' && c != 's') {
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bb_show_usage();
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error++;
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return error;
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}
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if (iskey) {
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/* keys are in hex or decimal */
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key_t key = strtoul(optarg, NULL, 0);
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if (key == IPC_PRIVATE) {
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error++;
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bb_fprintf(stderr, "%s: illegal key (%s)\n",
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prog, optarg);
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continue;
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}
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/* convert key to id */
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id = ((c == 'q') ? msgget(key, 0) :
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(c == 'm') ? shmget(key, 0, 0) :
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semget(key, 0, 0));
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if (id < 0) {
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char *errmsg;
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error++;
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switch(errno) {
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case EACCES:
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errmsg = "permission denied for key";
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break;
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case EIDRM:
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errmsg = "already removed key";
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break;
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case ENOENT:
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errmsg = "invalid key";
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break;
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default:
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errmsg = "unknown error in key";
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break;
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}
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bb_fprintf(stderr, "%s: %s (%s)\n",
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prog, errmsg, optarg);
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continue;
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}
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} else {
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/* ids are in decimal */
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id = strtoul(optarg, NULL, 10);
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}
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result = ((c == 'q') ? msgctl(id, IPC_RMID, NULL) :
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(c == 'm') ? shmctl(id, IPC_RMID, NULL) :
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semctl(id, 0, IPC_RMID, arg));
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|
||||
if (result < 0) {
|
||||
char *errmsg;
|
||||
error++;
|
||||
switch(errno) {
|
||||
case EACCES:
|
||||
case EPERM:
|
||||
errmsg = iskey
|
||||
? "permission denied for key"
|
||||
: "permission denied for id";
|
||||
break;
|
||||
case EINVAL:
|
||||
errmsg = iskey
|
||||
? "invalid key"
|
||||
: "invalid id";
|
||||
break;
|
||||
case EIDRM:
|
||||
errmsg = iskey
|
||||
? "already removed key"
|
||||
: "already removed id";
|
||||
break;
|
||||
default:
|
||||
errmsg = iskey
|
||||
? "unknown error in key"
|
||||
: "unknown error in id";
|
||||
break;
|
||||
}
|
||||
bb_fprintf(stderr, "%s: %s (%s)\n",
|
||||
prog, errmsg, optarg);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
/* print usage if we still have some arguments left over */
|
||||
if (optind != argc) {
|
||||
bb_show_usage();
|
||||
}
|
||||
|
||||
/* exit value reflects the number of errors encountered */
|
||||
return error;
|
||||
}
|
||||
686
util-linux/ipcs.c
Normal file
686
util-linux/ipcs.c
Normal file
@ -0,0 +1,686 @@
|
||||
/*
|
||||
* ipcs.c -- provides information on allocated ipc resources.
|
||||
*
|
||||
* 01 Sept 2004 - Rodney Radford <rradford@mindspring.com>
|
||||
* Adapted for busybox from util-linux-2.12a.
|
||||
*
|
||||
* 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 will 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* --- Pre-busybox history from util-linux-2.12a ------------------------
|
||||
*
|
||||
* 1999-02-22 Arkadiusz Miÿkiewicz <misiek@pld.ORG.PL>
|
||||
* - added Native Language Support
|
||||
*
|
||||
* Patched to display the key field -- hy@picksys.com 12/18/96
|
||||
*
|
||||
* Patch from arnolds@ifns.de (Heinz-Ado Arnolds) applied Mon Jul 1
|
||||
* 19:30:41 1996 by janl@math.uio.no to add code missing in case PID:
|
||||
* clauses.
|
||||
*
|
||||
* Patches from Mike Jagdis (jaggy@purplet.demon.co.uk) applied
|
||||
* Wed Feb 8 12:12:21 1995 by faith@cs.unc.edu to print numeric uids
|
||||
* if no passwd file entry.
|
||||
*
|
||||
* Modified Sat Oct 9 10:55:28 1993 for 0.99.13
|
||||
* Original author unknown, may be "krishna balasub@cis.ohio-state.edu"
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <getopt.h>
|
||||
#include <errno.h>
|
||||
#include <time.h>
|
||||
#include <pwd.h>
|
||||
#include <grp.h>
|
||||
|
||||
/* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */
|
||||
/* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */
|
||||
/* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */
|
||||
#include <sys/types.h>
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/sem.h>
|
||||
#include <sys/msg.h>
|
||||
#include <sys/shm.h>
|
||||
|
||||
#include "busybox.h"
|
||||
|
||||
/*-------------------------------------------------------------------*/
|
||||
/* SHM_DEST and SHM_LOCKED are defined in kernel headers,
|
||||
but inside #ifdef __KERNEL__ ... #endif */
|
||||
#ifndef SHM_DEST
|
||||
/* shm_mode upper byte flags */
|
||||
#define SHM_DEST 01000 /* segment will be destroyed on last detach */
|
||||
#define SHM_LOCKED 02000 /* segment will not be swapped */
|
||||
#endif
|
||||
|
||||
/* For older kernels the same holds for the defines below */
|
||||
#ifndef MSG_STAT
|
||||
#define MSG_STAT 11
|
||||
#define MSG_INFO 12
|
||||
#endif
|
||||
|
||||
#ifndef SHM_STAT
|
||||
#define SHM_STAT 13
|
||||
#define SHM_INFO 14
|
||||
struct shm_info {
|
||||
int used_ids;
|
||||
ulong shm_tot; /* total allocated shm */
|
||||
ulong shm_rss; /* total resident shm */
|
||||
ulong shm_swp; /* total swapped shm */
|
||||
ulong swap_attempts;
|
||||
ulong swap_successes;
|
||||
};
|
||||
#endif
|
||||
|
||||
#ifndef SEM_STAT
|
||||
#define SEM_STAT 18
|
||||
#define SEM_INFO 19
|
||||
#endif
|
||||
|
||||
/* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */
|
||||
#ifndef IPC_INFO
|
||||
#define IPC_INFO 3
|
||||
#endif
|
||||
/*-------------------------------------------------------------------*/
|
||||
|
||||
/* The last arg of semctl is a union semun, but where is it defined?
|
||||
X/OPEN tells us to define it ourselves, but until recently
|
||||
Linux include files would also define it. */
|
||||
#if defined (__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
|
||||
/* union semun is defined by including <sys/sem.h> */
|
||||
#else
|
||||
/* according to X/OPEN we have to define it ourselves */
|
||||
union semun {
|
||||
int val;
|
||||
struct semid_ds *buf;
|
||||
unsigned short int *array;
|
||||
struct seminfo *__buf;
|
||||
};
|
||||
#endif
|
||||
|
||||
/* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm;
|
||||
libc 4/5 does not mention struct ipc_term at all, but includes
|
||||
<linux/ipc.h>, which defines a struct ipc_perm with such fields.
|
||||
glibc-1.09 has no support for sysv ipc.
|
||||
glibc 2 uses __key, __seq */
|
||||
#if defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
|
||||
#define KEY __key
|
||||
#else
|
||||
#define KEY key
|
||||
#endif
|
||||
|
||||
#define LIMITS 1
|
||||
#define STATUS 2
|
||||
#define CREATOR 3
|
||||
#define TIME 4
|
||||
#define PID 5
|
||||
|
||||
void do_shm (char format);
|
||||
void do_sem (char format);
|
||||
void do_msg (char format);
|
||||
void print_shm (int id);
|
||||
void print_msg (int id);
|
||||
void print_sem (int id);
|
||||
|
||||
int ipcs_main (int argc, char **argv) {
|
||||
int opt, msg = 0, sem = 0, shm = 0, id=0, print=0;
|
||||
char format = 0;
|
||||
char options[] = "atclupsmqi:ih?";
|
||||
|
||||
while ((opt = getopt (argc, argv, options)) != -1) {
|
||||
switch (opt) {
|
||||
case 'i':
|
||||
id = atoi (optarg);
|
||||
print = 1;
|
||||
break;
|
||||
case 'a':
|
||||
msg = shm = sem = 1;
|
||||
break;
|
||||
case 'q':
|
||||
msg = 1;
|
||||
break;
|
||||
case 's':
|
||||
sem = 1;
|
||||
break;
|
||||
case 'm':
|
||||
shm = 1;
|
||||
break;
|
||||
case 't':
|
||||
format = TIME;
|
||||
break;
|
||||
case 'c':
|
||||
format = CREATOR;
|
||||
break;
|
||||
case 'p':
|
||||
format = PID;
|
||||
break;
|
||||
case 'l':
|
||||
format = LIMITS;
|
||||
break;
|
||||
case 'u':
|
||||
format = STATUS;
|
||||
break;
|
||||
case 'h':
|
||||
case '?':
|
||||
bb_show_usage();
|
||||
bb_fflush_stdout_and_exit (0);
|
||||
}
|
||||
}
|
||||
|
||||
if (print) {
|
||||
if (shm) {
|
||||
print_shm (id);
|
||||
bb_fflush_stdout_and_exit (0);
|
||||
}
|
||||
if (sem) {
|
||||
print_sem (id);
|
||||
bb_fflush_stdout_and_exit (0);
|
||||
}
|
||||
if (msg) {
|
||||
print_msg (id);
|
||||
bb_fflush_stdout_and_exit (0);
|
||||
}
|
||||
bb_show_usage();
|
||||
bb_fflush_stdout_and_exit (0);
|
||||
}
|
||||
|
||||
if ( !shm && !msg && !sem)
|
||||
msg = sem = shm = 1;
|
||||
bb_printf ("\n");
|
||||
|
||||
if (shm) {
|
||||
do_shm (format);
|
||||
bb_printf ("\n");
|
||||
}
|
||||
if (sem) {
|
||||
do_sem (format);
|
||||
bb_printf ("\n");
|
||||
}
|
||||
if (msg) {
|
||||
do_msg (format);
|
||||
bb_printf ("\n");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
print_perms (int id, struct ipc_perm *ipcp) {
|
||||
struct passwd *pw;
|
||||
struct group *gr;
|
||||
|
||||
bb_printf ("%-10d %-10o", id, ipcp->mode & 0777);
|
||||
|
||||
if ((pw = getpwuid(ipcp->cuid)))
|
||||
bb_printf(" %-10s", pw->pw_name);
|
||||
else
|
||||
bb_printf(" %-10d", ipcp->cuid);
|
||||
if ((gr = getgrgid(ipcp->cgid)))
|
||||
bb_printf(" %-10s", gr->gr_name);
|
||||
else
|
||||
bb_printf(" %-10d", ipcp->cgid);
|
||||
|
||||
if ((pw = getpwuid(ipcp->uid)))
|
||||
bb_printf(" %-10s", pw->pw_name);
|
||||
else
|
||||
bb_printf(" %-10d", ipcp->uid);
|
||||
if ((gr = getgrgid(ipcp->gid)))
|
||||
bb_printf(" %-10s\n", gr->gr_name);
|
||||
else
|
||||
bb_printf(" %-10d\n", ipcp->gid);
|
||||
}
|
||||
|
||||
|
||||
void do_shm (char format)
|
||||
{
|
||||
int maxid, shmid, id;
|
||||
struct shmid_ds shmseg;
|
||||
struct shm_info shm_info;
|
||||
struct shminfo shminfo;
|
||||
struct ipc_perm *ipcp = &shmseg.shm_perm;
|
||||
struct passwd *pw;
|
||||
|
||||
maxid = shmctl (0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info);
|
||||
if (maxid < 0) {
|
||||
bb_printf ("kernel not configured for shared memory\n");
|
||||
return;
|
||||
}
|
||||
|
||||
switch (format) {
|
||||
case LIMITS:
|
||||
bb_printf ("------ Shared Memory Limits --------\n");
|
||||
if ((shmctl (0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0 )
|
||||
return;
|
||||
/* glibc 2.1.3 and all earlier libc's have ints as fields
|
||||
of struct shminfo; glibc 2.1.91 has unsigned long; ach */
|
||||
bb_printf ("max number of segments = %lu\n",
|
||||
(unsigned long) shminfo.shmmni);
|
||||
bb_printf ("max seg size (kbytes) = %lu\n",
|
||||
(unsigned long) (shminfo.shmmax >> 10));
|
||||
bb_printf ("max total shared memory (pages) = %lu\n",
|
||||
(unsigned long) shminfo.shmall);
|
||||
bb_printf ("min seg size (bytes) = %lu\n",
|
||||
(unsigned long) shminfo.shmmin);
|
||||
return;
|
||||
|
||||
case STATUS:
|
||||
bb_printf ("------ Shared Memory Status --------\n");
|
||||
bb_printf ("segments allocated %d\n", shm_info.used_ids);
|
||||
bb_printf ("pages allocated %ld\n", shm_info.shm_tot);
|
||||
bb_printf ("pages resident %ld\n", shm_info.shm_rss);
|
||||
bb_printf ("pages swapped %ld\n", shm_info.shm_swp);
|
||||
bb_printf ("Swap performance: %ld attempts\t %ld successes\n",
|
||||
shm_info.swap_attempts, shm_info.swap_successes);
|
||||
return;
|
||||
|
||||
case CREATOR:
|
||||
bb_printf ("------ Shared Memory Segment Creators/Owners --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
||||
"shmid","perms","cuid","cgid","uid","gid");
|
||||
break;
|
||||
|
||||
case TIME:
|
||||
bb_printf ("------ Shared Memory Attach/Detach/Change Times --------\n");
|
||||
bb_printf ("%-10s %-10s %-20s %-20s %-20s\n",
|
||||
"shmid","owner","attached","detached","changed");
|
||||
break;
|
||||
|
||||
case PID:
|
||||
bb_printf ("------ Shared Memory Creator/Last-op --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s\n",
|
||||
"shmid","owner","cpid","lpid");
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf ("------ Shared Memory Segments --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
|
||||
"key","shmid","owner","perms","bytes","nattch","status");
|
||||
break;
|
||||
}
|
||||
|
||||
for (id = 0; id <= maxid; id++) {
|
||||
shmid = shmctl (id, SHM_STAT, &shmseg);
|
||||
if (shmid < 0)
|
||||
continue;
|
||||
if (format == CREATOR) {
|
||||
print_perms (shmid, ipcp);
|
||||
continue;
|
||||
}
|
||||
pw = getpwuid(ipcp->uid);
|
||||
switch (format) {
|
||||
case TIME:
|
||||
if (pw)
|
||||
bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-10d %-10d", shmid, ipcp->uid);
|
||||
/* ctime uses static buffer: use separate calls */
|
||||
bb_printf(" %-20.16s", shmseg.shm_atime
|
||||
? ctime(&shmseg.shm_atime) + 4 : "Not set");
|
||||
bb_printf(" %-20.16s", shmseg.shm_dtime
|
||||
? ctime(&shmseg.shm_dtime) + 4 : "Not set");
|
||||
bb_printf(" %-20.16s\n", shmseg.shm_ctime
|
||||
? ctime(&shmseg.shm_ctime) + 4 : "Not set");
|
||||
break;
|
||||
case PID:
|
||||
if (pw)
|
||||
bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-10d %-10d", shmid, ipcp->uid);
|
||||
bb_printf (" %-10d %-10d\n",
|
||||
shmseg.shm_cpid, shmseg.shm_lpid);
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf("0x%08x ",ipcp->KEY );
|
||||
if (pw)
|
||||
bb_printf ("%-10d %-10.10s", shmid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-10d %-10d", shmid, ipcp->uid);
|
||||
bb_printf ("%-10o %-10lu %-10ld %-6s %-6s\n",
|
||||
ipcp->mode & 0777,
|
||||
/*
|
||||
* earlier: int, Austin has size_t
|
||||
*/
|
||||
(unsigned long) shmseg.shm_segsz,
|
||||
/*
|
||||
* glibc-2.1.3 and earlier has unsigned short;
|
||||
* Austin has shmatt_t
|
||||
*/
|
||||
(long) shmseg.shm_nattch,
|
||||
ipcp->mode & SHM_DEST ? "dest" : " ",
|
||||
ipcp->mode & SHM_LOCKED ? "locked" : " ");
|
||||
break;
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
void do_sem (char format)
|
||||
{
|
||||
int maxid, semid, id;
|
||||
struct semid_ds semary;
|
||||
struct seminfo seminfo;
|
||||
struct ipc_perm *ipcp = &semary.sem_perm;
|
||||
struct passwd *pw;
|
||||
union semun arg;
|
||||
|
||||
arg.array = (ushort *) (void *) &seminfo;
|
||||
maxid = semctl (0, 0, SEM_INFO, arg);
|
||||
if (maxid < 0) {
|
||||
bb_printf ("kernel not configured for semaphores\n");
|
||||
return;
|
||||
}
|
||||
|
||||
switch (format) {
|
||||
case LIMITS:
|
||||
bb_printf ("------ Semaphore Limits --------\n");
|
||||
arg.array = (ushort *) (void *) &seminfo; /* damn union */
|
||||
if ((semctl (0, 0, IPC_INFO, arg)) < 0 )
|
||||
return;
|
||||
bb_printf ("max number of arrays = %d\n", seminfo.semmni);
|
||||
bb_printf ("max semaphores per array = %d\n", seminfo.semmsl);
|
||||
bb_printf ("max semaphores system wide = %d\n", seminfo.semmns);
|
||||
bb_printf ("max ops per semop call = %d\n", seminfo.semopm);
|
||||
bb_printf ("semaphore max value = %d\n", seminfo.semvmx);
|
||||
return;
|
||||
|
||||
case STATUS:
|
||||
bb_printf ("------ Semaphore Status --------\n");
|
||||
bb_printf ("used arrays = %d\n", seminfo.semusz);
|
||||
bb_printf ("allocated semaphores = %d\n", seminfo.semaem);
|
||||
return;
|
||||
|
||||
case CREATOR:
|
||||
bb_printf ("------ Semaphore Arrays Creators/Owners --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
||||
"semid","perms","cuid","cgid","uid","gid");
|
||||
break;
|
||||
|
||||
case TIME:
|
||||
bb_printf ("------ Shared Memory Operation/Change Times --------\n");
|
||||
bb_printf ("%-8s %-10s %-26.24s %-26.24s\n",
|
||||
"shmid","owner","last-op","last-changed");
|
||||
break;
|
||||
|
||||
case PID:
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf ("------ Semaphore Arrays --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s\n",
|
||||
"key","semid","owner","perms","nsems");
|
||||
break;
|
||||
}
|
||||
|
||||
for (id = 0; id <= maxid; id++) {
|
||||
arg.buf = (struct semid_ds *) &semary;
|
||||
semid = semctl (id, 0, SEM_STAT, arg);
|
||||
if (semid < 0)
|
||||
continue;
|
||||
if (format == CREATOR) {
|
||||
print_perms (semid, ipcp);
|
||||
continue;
|
||||
}
|
||||
pw = getpwuid(ipcp->uid);
|
||||
switch (format) {
|
||||
case TIME:
|
||||
if (pw)
|
||||
bb_printf ("%-8d %-10.10s", semid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-8d %-10d", semid, ipcp->uid);
|
||||
bb_printf (" %-26.24s", semary.sem_otime
|
||||
? ctime(&semary.sem_otime) : "Not set");
|
||||
bb_printf (" %-26.24s\n", semary.sem_ctime
|
||||
? ctime(&semary.sem_ctime) : "Not set");
|
||||
break;
|
||||
case PID:
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf("0x%08x ", ipcp->KEY);
|
||||
if (pw)
|
||||
bb_printf ("%-10d %-10.9s", semid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-10d %-9d", semid, ipcp->uid);
|
||||
bb_printf ("%-10o %-10ld\n",
|
||||
ipcp->mode & 0777,
|
||||
/*
|
||||
* glibc-2.1.3 and earlier has unsigned short;
|
||||
* glibc-2.1.91 has variation between
|
||||
* unsigned short and unsigned long
|
||||
* Austin prescribes unsigned short.
|
||||
*/
|
||||
(long) semary.sem_nsems);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void do_msg (char format)
|
||||
{
|
||||
int maxid, msqid, id;
|
||||
struct msqid_ds msgque;
|
||||
struct msginfo msginfo;
|
||||
struct ipc_perm *ipcp = &msgque.msg_perm;
|
||||
struct passwd *pw;
|
||||
|
||||
maxid = msgctl (0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo);
|
||||
if (maxid < 0) {
|
||||
bb_printf ("kernel not configured for message queues\n");
|
||||
return;
|
||||
}
|
||||
|
||||
switch (format) {
|
||||
case LIMITS:
|
||||
if ((msgctl (0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0 )
|
||||
return;
|
||||
bb_printf ("------ Messages: Limits --------\n");
|
||||
bb_printf ("max queues system wide = %d\n", msginfo.msgmni);
|
||||
bb_printf ("max size of message (bytes) = %d\n", msginfo.msgmax);
|
||||
bb_printf ("default max size of queue (bytes) = %d\n", msginfo.msgmnb);
|
||||
return;
|
||||
|
||||
case STATUS:
|
||||
bb_printf ("------ Messages: Status --------\n");
|
||||
bb_printf ("allocated queues = %d\n", msginfo.msgpool);
|
||||
bb_printf ("used headers = %d\n", msginfo.msgmap);
|
||||
bb_printf ("used space = %d bytes\n", msginfo.msgtql);
|
||||
return;
|
||||
|
||||
case CREATOR:
|
||||
bb_printf ("------ Message Queues: Creators/Owners --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
||||
"msqid","perms","cuid","cgid","uid","gid");
|
||||
break;
|
||||
|
||||
case TIME:
|
||||
bb_printf ("------ Message Queues Send/Recv/Change Times --------\n");
|
||||
bb_printf ("%-8s %-10s %-20s %-20s %-20s\n",
|
||||
"msqid","owner","send","recv","change");
|
||||
break;
|
||||
|
||||
case PID:
|
||||
bb_printf ("------ Message Queues PIDs --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s\n",
|
||||
"msqid","owner","lspid","lrpid");
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf ("------ Message Queues --------\n");
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-12s %-12s\n",
|
||||
"key", "msqid", "owner", "perms","used-bytes", "messages");
|
||||
break;
|
||||
}
|
||||
|
||||
for (id = 0; id <= maxid; id++) {
|
||||
msqid = msgctl (id, MSG_STAT, &msgque);
|
||||
if (msqid < 0)
|
||||
continue;
|
||||
if (format == CREATOR) {
|
||||
print_perms (msqid, ipcp);
|
||||
continue;
|
||||
}
|
||||
pw = getpwuid(ipcp->uid);
|
||||
switch (format) {
|
||||
case TIME:
|
||||
if (pw)
|
||||
bb_printf ("%-8d %-10.10s", msqid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-8d %-10d", msqid, ipcp->uid);
|
||||
bb_printf (" %-20.16s", msgque.msg_stime
|
||||
? ctime(&msgque.msg_stime) + 4 : "Not set");
|
||||
bb_printf (" %-20.16s", msgque.msg_rtime
|
||||
? ctime(&msgque.msg_rtime) + 4 : "Not set");
|
||||
bb_printf (" %-20.16s\n", msgque.msg_ctime
|
||||
? ctime(&msgque.msg_ctime) + 4 : "Not set");
|
||||
break;
|
||||
case PID:
|
||||
if (pw)
|
||||
bb_printf ("%-8d %-10.10s", msqid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-8d %-10d", msqid, ipcp->uid);
|
||||
bb_printf (" %5d %5d\n",
|
||||
msgque.msg_lspid, msgque.msg_lrpid);
|
||||
break;
|
||||
|
||||
default:
|
||||
bb_printf( "0x%08x ",ipcp->KEY );
|
||||
if (pw)
|
||||
bb_printf ("%-10d %-10.10s", msqid, pw->pw_name);
|
||||
else
|
||||
bb_printf ("%-10d %-10d", msqid, ipcp->uid);
|
||||
bb_printf (" %-10o %-12ld %-12ld\n",
|
||||
ipcp->mode & 0777,
|
||||
/*
|
||||
* glibc-2.1.3 and earlier has unsigned short;
|
||||
* glibc-2.1.91 has variation between
|
||||
* unsigned short, unsigned long
|
||||
* Austin has msgqnum_t
|
||||
*/
|
||||
(long) msgque.msg_cbytes,
|
||||
(long) msgque.msg_qnum);
|
||||
break;
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
void print_shm (int shmid)
|
||||
{
|
||||
struct shmid_ds shmds;
|
||||
struct ipc_perm *ipcp = &shmds.shm_perm;
|
||||
|
||||
if (shmctl (shmid, IPC_STAT, &shmds) == -1) {
|
||||
perror ("shmctl ");
|
||||
return;
|
||||
}
|
||||
|
||||
bb_printf ("\nShared memory Segment shmid=%d\n", shmid);
|
||||
bb_printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n",
|
||||
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
|
||||
bb_printf ("mode=%#o\taccess_perms=%#o\n",
|
||||
ipcp->mode, ipcp->mode & 0777);
|
||||
bb_printf ("bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n",
|
||||
(long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid,
|
||||
(long) shmds.shm_nattch);
|
||||
bb_printf ("att_time=%-26.24s\n",
|
||||
shmds.shm_atime ? ctime (&shmds.shm_atime) : "Not set");
|
||||
bb_printf ("det_time=%-26.24s\n",
|
||||
shmds.shm_dtime ? ctime (&shmds.shm_dtime) : "Not set");
|
||||
bb_printf ("change_time=%-26.24s\n", ctime (&shmds.shm_ctime));
|
||||
bb_printf ("\n");
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
void print_msg (int msqid)
|
||||
{
|
||||
struct msqid_ds buf;
|
||||
struct ipc_perm *ipcp = &buf.msg_perm;
|
||||
|
||||
if (msgctl (msqid, IPC_STAT, &buf) == -1) {
|
||||
perror ("msgctl ");
|
||||
return;
|
||||
}
|
||||
|
||||
bb_printf ("\nMessage Queue msqid=%d\n", msqid);
|
||||
bb_printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n",
|
||||
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode);
|
||||
bb_printf ("cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n",
|
||||
/*
|
||||
* glibc-2.1.3 and earlier has unsigned short;
|
||||
* glibc-2.1.91 has variation between
|
||||
* unsigned short, unsigned long
|
||||
* Austin has msgqnum_t (for msg_qbytes)
|
||||
*/
|
||||
(long) buf.msg_cbytes, (long) buf.msg_qbytes,
|
||||
(long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid);
|
||||
bb_printf ("send_time=%-26.24s\n",
|
||||
buf.msg_stime ? ctime (&buf.msg_stime) : "Not set");
|
||||
bb_printf ("rcv_time=%-26.24s\n",
|
||||
buf.msg_rtime ? ctime (&buf.msg_rtime) : "Not set");
|
||||
bb_printf ("change_time=%-26.24s\n",
|
||||
buf.msg_ctime ? ctime (&buf.msg_ctime) : "Not set");
|
||||
bb_printf ("\n");
|
||||
return;
|
||||
}
|
||||
|
||||
void print_sem (int semid)
|
||||
{
|
||||
struct semid_ds semds;
|
||||
struct ipc_perm *ipcp = &semds.sem_perm;
|
||||
union semun arg;
|
||||
int i;
|
||||
|
||||
arg.buf = &semds;
|
||||
if (semctl (semid, 0, IPC_STAT, arg) < 0) {
|
||||
perror ("semctl ");
|
||||
return;
|
||||
}
|
||||
|
||||
bb_printf ("\nSemaphore Array semid=%d\n", semid);
|
||||
bb_printf ("uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n",
|
||||
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
|
||||
bb_printf ("mode=%#o, access_perms=%#o\n",
|
||||
ipcp->mode, ipcp->mode & 0777);
|
||||
bb_printf ("nsems = %ld\n", (long) semds.sem_nsems);
|
||||
bb_printf ("otime = %-26.24s\n",
|
||||
semds.sem_otime ? ctime (&semds.sem_otime) : "Not set");
|
||||
bb_printf ("ctime = %-26.24s\n", ctime (&semds.sem_ctime));
|
||||
|
||||
bb_printf ("%-10s %-10s %-10s %-10s %-10s\n",
|
||||
"semnum","value","ncount","zcount","pid");
|
||||
|
||||
arg.val = 0;
|
||||
for (i=0; i< semds.sem_nsems; i++) {
|
||||
int val, ncnt, zcnt, pid;
|
||||
val = semctl (semid, i, GETVAL, arg);
|
||||
ncnt = semctl (semid, i, GETNCNT, arg);
|
||||
zcnt = semctl (semid, i, GETZCNT, arg);
|
||||
pid = semctl (semid, i, GETPID, arg);
|
||||
if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) {
|
||||
perror ("semctl ");
|
||||
bb_fflush_stdout_and_exit (1);
|
||||
}
|
||||
bb_printf ("%-10d %-10d %-10d %-10d %-10d\n",
|
||||
i, val, ncnt, zcnt, pid);
|
||||
}
|
||||
bb_printf ("\n");
|
||||
return;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user