[thirdparty/util-linux.git] / sys-utils / ipcs.c

/* Original author unknown, but may be "krishna balasub@cis.ohio-state.edu"
   Modified Sat Oct  9 10:55:28 1993 for 0.99.13 */

/* 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. */

#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <errno.h>
#include <time.h>
#include <pwd.h>
#include <grp.h>
#define __KERNEL__
#include <linux/linkage.h>
#include <sys/sem.h>
#include <sys/msg.h>
#include <sys/shm.h>


#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);

static char *progname;

void usage(void)
{
	printf ("usage : %s -asmq -tclup \n", progname);
	printf ("\t%s [-s -m -q] -i id\n", progname);
	printf ("\t%s -h for help.\n", progname); 
	return;
}

void help (void)
{
	printf ("%s provides information on ipc facilities for", progname);
        printf (" which you have read access.\n"); 
	printf ("Resource Specification:\n\t-m : shared_mem\n\t-q : messages\n");
	printf ("\t-s : semaphores\n\t-a : all (default)\n");
	printf ("Output Format:\n\t-t : time\n\t-p : pid\n\t-c : creator\n");
	printf ("\t-l : limits\n\t-u : summary\n");
	printf ("-i id [-s -q -m] : details on resource identified by id\n");
	usage();
	return;
}

int main (int argc, char **argv)
{
	int opt, msg = 0, sem = 0, shm = 0, id=0, print=0; 
	char format = 0;
	char options[] = "atcluphsmqi:";

	progname = argv[0];
	while ((opt = getopt (argc, argv, options)) != EOF) {
		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': 
			help();
			exit (0);
		case '?':
			usage();
			exit (0);
		}
	}

	if  (print) {
		if (shm) { 
			print_shm (id);
			exit (0);
		}
		if (sem) { 
			print_sem (id);
			exit (0);
		}
		if (msg) {
			print_msg (id);
			exit (0);
		}
		usage();
	}

	if ( !shm && !msg && !sem)
		msg = sem = shm = 1;
	printf ("\n");

	if (shm) {	
		do_shm (format);
		printf ("\n");
	}
	if (sem) {	
		do_sem (format);
		printf ("\n");
	}
	if (msg) {	
		do_msg (format);
		printf ("\n");
	}
	return 0;
}


void print_perms (int id, struct ipc_perm *ipcp)
{
	struct passwd *pw;
	struct group *gr;

	printf ("%-10d%-10o", id, ipcp->mode & 0777);

	if ((pw = getpwuid(ipcp->cuid)))
		printf("%-10s", pw->pw_name);
	else
		printf("%-10d", ipcp->cuid);
	if ((gr = getgrgid(ipcp->cgid)))
		printf("%-10s", gr->gr_name);
	else
		printf("%-10d", ipcp->cgid);

	if ((pw = getpwuid(ipcp->uid)))
		printf("%-10s", pw->pw_name);
	else
		printf("%-10d", ipcp->uid);
	if ((gr = getgrgid(ipcp->gid)))
		printf("%-10s\n", gr->gr_name);
	else
		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 *) &shm_info);
	if (maxid < 0) {
		printf ("kernel not configured for shared memory\n");
		return;
	}
	
	switch (format) {
	case LIMITS:
		printf ("------ Shared Memory Limits --------\n");
		if ((shmctl (0, IPC_INFO, (struct shmid_ds *) &shminfo)) < 0 )
			return;
		printf ("max number of segments = %d\n", shminfo.shmmni);
		printf ("max seg size (kbytes) = %d\n", shminfo.shmmax >> 10);
		printf ("max total shared memory (kbytes) = %d\n", shminfo.shmall << 2);
		printf ("min seg size (bytes) = %d\n", shminfo.shmmin);
		return;

	case STATUS:
		printf ("------ Shared Memory Status --------\n");
		printf ("segments allocated %d\n", shm_info.used_ids);
		printf ("pages allocated %d\n", shm_info.shm_tot);
		printf ("pages resident  %d\n", shm_info.shm_rss);
		printf ("pages swapped   %d\n", shm_info.shm_swp);
		printf ("Swap performance: %d attempts\t %d successes\n", 
			shm_info.swap_attempts, shm_info.swap_successes);
		return;

	case CREATOR:
		printf ("------ Shared Memory Segment Creators/Owners --------\n");
		printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
		 "shmid","perms","cuid","cgid","uid","gid");
		break;

	case TIME:
		printf ("------ Shared Memory Attach/Detach/Change Times --------\n");
		printf ("%-10s%-10s  %-20s%-20s%-20s\n",
			"shmid","owner","attached","detached","changed");
		break;

	case PID:
		printf ("------ Shared Memory Creator/Last-op --------\n");
		printf ("%-10s%-10s%-10s%-10s\n","shmid","owner","cpid","lpid");
		break;

	default:
		printf ("------ Shared Memory Segments --------\n");
		printf ("%-10s%-10s%-10s%-10s%-10s%-12s\n", "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)
				printf ("%-10d%-10.10s", shmid, pw->pw_name);
			else
				printf ("%-10d%-10d", shmid, ipcp->uid);
			printf("  %-20.16s%-20.16s%-20.16s\n",
			shmseg.shm_atime ? ctime(&shmseg.shm_atime) + 4 : "Not set",
		 	shmseg.shm_dtime ? ctime(&shmseg.shm_dtime) + 4 : "Not set",
			shmseg.shm_ctime ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
			break;
		case PID:
			if (pw)
				printf ("%-10d%-10.10s", shmid, pw->pw_name);
			else
				printf ("%-10d%-10d", shmid, ipcp->uid);
			printf ("%-10d%-10d\n",
				shmseg.shm_cpid, shmseg.shm_lpid);
			break;
			
		default:
			if (pw)
				printf ("%-10d%-10.10s", shmid, pw->pw_name);
			else
				printf ("%-10d%-10d", shmid, ipcp->uid);
			printf ("%-10o%-10d%-10d%-6s%-6s\n", 
				ipcp->mode & 0777, 
				shmseg.shm_segsz, 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 *)  &seminfo;
	maxid = semctl (0, 0, SEM_INFO, arg);
	if (maxid < 0) {
		printf ("kernel not configured for semaphores\n");
		return;
	}
	
	switch (format) {
	case LIMITS:
		printf ("------ Semaphore Limits --------\n");
		arg.array = (ushort *) &seminfo; /* damn union */
		if ((semctl (0, 0, IPC_INFO, arg)) < 0 )
			return;
		printf ("max number of arrays = %d\n", seminfo.semmni);
		printf ("max semaphores per array = %d\n", seminfo.semmsl);
		printf ("max semaphores system wide = %d\n", seminfo.semmns);
		printf ("max ops per semop call = %d\n", seminfo.semopm);
		printf ("semaphore max value = %d\n", seminfo.semvmx);
		return;

	case STATUS:
		printf ("------ Semaphore Status --------\n");
		printf ("used arrays = %d\n", seminfo.semusz);
		printf ("allocated semaphores = %d\n", seminfo.semaem);
		return;

	case CREATOR:
		printf ("------ Semaphore Arrays Creators/Owners --------\n");
		printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
		 "semid","perms","cuid","cgid","uid","gid");
		break;

	case TIME:
		printf ("------ Shared Memory Operation/Change Times --------\n");
		printf ("%-8s%-10s  %-26.24s %-26.24s\n",
			"shmid","owner","last-op","last-changed");
		break;

	case PID:
		break;

	default:
		printf ("------ Semaphore Arrays --------\n");
		printf ("%-10s%-10s%-10s%-10s%-12s\n", 
			"semid","owner","perms","nsems","status");
		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)
				printf ("%-8d%-10.10s", semid, pw->pw_name);
			else
				printf ("%-8d%-10d", semid, ipcp->uid);
			printf ("  %-26.24s %-26.24s\n", 
				semary.sem_otime ? ctime(&semary.sem_otime) : "Not set",
				semary.sem_ctime ? ctime(&semary.sem_ctime) : "Not set");
			break;
		case PID:
			break;
			
		default:
			if (pw)
				printf ("%-10d%-10.9s", semid, pw->pw_name);
			else
				printf ("%-10d%-9d", semid, ipcp->uid);
			printf ("%-10o%-10d\n", 
				ipcp->mode & 0777,
				semary.sem_nsems);
			break;
		}
	}
	return;
}


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 *) &msginfo);
	if (maxid < 0) {
		printf ("kernel not configured for shared memory\n");
		return;
	}
	
	switch (format) {
	case LIMITS:
		if ((msgctl (0, IPC_INFO, (struct msqid_ds *) &msginfo)) < 0 )
			return;
		printf ("------ Messages: Limits --------\n");
		printf ("max queues system wide = %d\n", msginfo.msgmni);
		printf ("max size of message (bytes) = %d\n", msginfo.msgmax);
		printf ("default max size of queue (bytes) = %d\n", msginfo.msgmnb);
		return;

	case STATUS:
		printf ("------ Messages: Status --------\n");
		printf ("allocated queues = %d\n", msginfo.msgpool);
		printf ("used headers = %d\n", msginfo.msgmap);
		printf ("used space = %d bytes\n", msginfo.msgtql);
		return;

	case CREATOR:
		printf ("------ Message Queues: Creators/Owners --------\n");
		printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
		 "msqid","perms","cuid","cgid","uid","gid");
		break;

	case TIME:
		printf ("------ Message Queues Send/Recv/Change Times --------\n");
		printf ("%-8s%-10s  %-20s%-20s%-20s\n",
			"msqid","owner","send","recv","change");
		break;

	case PID:
		break;

	default:
		printf ("------ Message Queues --------\n");
		printf ("%-10s%-10s%-10s%-12s%-12s\n", "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)
				printf ("%-8d%-10.10s", msqid, pw->pw_name);
			else
				printf ("%-8d%-10d", msqid, ipcp->uid);
			printf ("  %-20.16s%-20.16s%-20.16s\n", 
			msgque.msg_stime ? ctime(&msgque.msg_stime) + 4 : "Not set",
		 	msgque.msg_rtime ? ctime(&msgque.msg_rtime) + 4 : "Not set",
			msgque.msg_ctime ? ctime(&msgque.msg_ctime) + 4 : "Not set");
			break;
		case PID:
			break;
			
		default:
			if (pw)
				printf ("%-10d%-10.10s", msqid, pw->pw_name);
			else
				printf ("%-10d%-10d", msqid, ipcp->uid);
			printf ("%-10o%-12d%-12d\n", 
			ipcp->mode & 0777, msgque.msg_cbytes,
				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;
	}

	printf ("\nShared memory Segment shmid=%d\n", shmid);
	printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n",
		ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
	printf ("mode=%#o\taccess_perms=%#o\n", ipcp->mode, ipcp->mode & 0777);
	printf ("bytes=%d\tlpid=%d\tcpid=%d\tnattch=%d\n", 
		shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid, 
		shmds.shm_nattch);
	printf ("att_time=%s", shmds.shm_atime ? ctime (&shmds.shm_atime) : 
		"Not set\n");
	printf ("det_time=%s", shmds.shm_dtime ? ctime (&shmds.shm_dtime) : 
		"Not set\n");
	printf ("change_time=%s", ctime (&shmds.shm_ctime));
	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;
	}
	printf ("\nMessage Queue msqid=%d\n", msqid);
	printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n",
		ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode);
	printf ("cbytes=%d\tqbytes=%d\tqnum=%d\tlspid=%d\tlrpid=%d\n",
		buf.msg_cbytes, buf.msg_qbytes, buf.msg_qnum, buf.msg_lspid, 
		buf.msg_lrpid);
	printf ("send_time=%srcv_time=%schange_time=%s", 
		buf.msg_rtime? ctime (&buf.msg_rtime) : "Not Set\n",
		buf.msg_stime? ctime (&buf.msg_stime) : "Not Set\n",
		buf.msg_ctime? ctime (&buf.msg_ctime) : "Not Set\n");
	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;
	}
	printf ("\nSemaphore Array semid=%d\n", semid);
	printf ("uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n",
		ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
	printf ("mode=%#o, access_perms=%#o\n", ipcp->mode, ipcp->mode & 0777);
	printf ("nsems = %d\n", semds.sem_nsems);
	printf ("otime = %s", semds.sem_otime ? ctime (&semds.sem_otime) : 
		"Not set\n");
	printf ("ctime = %s", ctime (&semds.sem_ctime));	

	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 ");
			exit (1);
		}
		printf ("%-10d%-10d%-10d%-10d%-10d\n", i, val, ncnt, zcnt, pid);
	}
	printf ("\n");
	return;
}
Commit	Line	Data
6dbe3af9 KZ	1	/* Original author unknown, but may be "krishna balasub@cis.ohio-state.edu"
	2	Modified Sat Oct 9 10:55:28 1993 for 0.99.13 */
	3
	4	/* Patches from Mike Jagdis (jaggy@purplet.demon.co.uk) applied Wed Feb 8
	5	12:12:21 1995 by faith@cs.unc.edu to print numeric uids if no passwd file
	6	entry. */
	7
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <getopt.h>
	11	#include <errno.h>
	12	#include <time.h>
	13	#include <pwd.h>
	14	#include <grp.h>
	15	#define __KERNEL__
726f69e2	16	#include <linux/linkage.h>
6dbe3af9 KZ	17	#include <sys/sem.h>
	18	#include <sys/msg.h>
	19	#include <sys/shm.h>
	20
	21
	22	#define LIMITS 1
	23	#define STATUS 2
	24	#define CREATOR 3
	25	#define TIME 4
	26	#define PID 5
	27
	28	void do_shm (char format);
	29	void do_sem (char format);
	30	void do_msg (char format);
	31	void print_shm (int id);
	32	void print_msg (int id);
	33	void print_sem (int id);
	34
	35	static char *progname;
	36
	37	void usage(void)
	38	{
	39	printf ("usage : %s -asmq -tclup \n", progname);
	40	printf ("\t%s [-s -m -q] -i id\n", progname);
	41	printf ("\t%s -h for help.\n", progname);
	42	return;
	43	}
	44
	45	void help (void)
	46	{
	47	printf ("%s provides information on ipc facilities for", progname);
	48	printf (" which you have read access.\n");
	49	printf ("Resource Specification:\n\t-m : shared_mem\n\t-q : messages\n");
	50	printf ("\t-s : semaphores\n\t-a : all (default)\n");
	51	printf ("Output Format:\n\t-t : time\n\t-p : pid\n\t-c : creator\n");
	52	printf ("\t-l : limits\n\t-u : summary\n");
	53	printf ("-i id [-s -q -m] : details on resource identified by id\n");
	54	usage();
	55	return;
	56	}
	57
	58	int main (int argc, char **argv)
	59	{
	60	int opt, msg = 0, sem = 0, shm = 0, id=0, print=0;
	61	char format = 0;
	62	char options[] = "atcluphsmqi:";
	63
	64	progname = argv[0];
	65	while ((opt = getopt (argc, argv, options)) != EOF) {
	66	switch (opt) {
	67	case 'i':
	68	id = atoi (optarg);
	69	print = 1;
	70	break;
	71	case 'a':
	72	msg = shm = sem = 1;
	73	break;
	74	case 'q':
	75	msg = 1;
	76	break;
	77	case 's':
	78	sem = 1;
	79	break;
	80	case 'm':
81	shm = 1;
82	break;
83	case 't':
84	format = TIME;
85	break;
86	case 'c':
87	format = CREATOR;
88	break;
89	case 'p':
90	format = PID;
91	break;
92	case 'l':
93	format = LIMITS;
94	break;
95	case 'u':
96	format = STATUS;
97	break;
98	case 'h':
99	help();
100	exit (0);
101	case '?':
102	usage();
103	exit (0);
104	}
105	}
106
107	if (print) {
108	if (shm) {
109	print_shm (id);
110	exit (0);
111	}
112	if (sem) {
113	print_sem (id);
114	exit (0);
115	}
116	if (msg) {
117	print_msg (id);
118	exit (0);
119	}
120	usage();
121	}
122
123	if ( !shm && !msg && !sem)
124	msg = sem = shm = 1;
125	printf ("\n");
126
127	if (shm) {
128	do_shm (format);
129	printf ("\n");
130	}
131	if (sem) {
132	do_sem (format);
133	printf ("\n");
134	}
135	if (msg) {
136	do_msg (format);
137	printf ("\n");
138	}
139	return 0;
140	}
141
142
143	void print_perms (int id, struct ipc_perm *ipcp)
144	{
145	struct passwd *pw;
146	struct group *gr;
147
148	printf ("%-10d%-10o", id, ipcp->mode & 0777);
149
150	if ((pw = getpwuid(ipcp->cuid)))
151	printf("%-10s", pw->pw_name);
152	else
153	printf("%-10d", ipcp->cuid);
154	if ((gr = getgrgid(ipcp->cgid)))
155	printf("%-10s", gr->gr_name);
156	else
157	printf("%-10d", ipcp->cgid);
158
159	if ((pw = getpwuid(ipcp->uid)))
160	printf("%-10s", pw->pw_name);
161	else
162	printf("%-10d", ipcp->uid);
163	if ((gr = getgrgid(ipcp->gid)))
164	printf("%-10s\n", gr->gr_name);
165	else
166	printf("%-10d\n", ipcp->gid);
167	}
168
169
170	void do_shm (char format)
171	{
172	int maxid, shmid, id;
173	struct shmid_ds shmseg;
174	struct shm_info shm_info;
175	struct shminfo shminfo;
176	struct ipc_perm *ipcp = &shmseg.shm_perm;
177	struct passwd *pw;
178
179	maxid = shmctl (0, SHM_INFO, (struct shmid_ds *) &shm_info);
180	if (maxid < 0) {
181	printf ("kernel not configured for shared memory\n");
182	return;
183	}
184
185	switch (format) {
186	case LIMITS:
187	printf ("------ Shared Memory Limits --------\n");
188	if ((shmctl (0, IPC_INFO, (struct shmid_ds *) &shminfo)) < 0 )
189	return;
190	printf ("max number of segments = %d\n", shminfo.shmmni);
191	printf ("max seg size (kbytes) = %d\n", shminfo.shmmax >> 10);
192	printf ("max total shared memory (kbytes) = %d\n", shminfo.shmall << 2);
193	printf ("min seg size (bytes) = %d\n", shminfo.shmmin);
194	return;
195
196	case STATUS:
197	printf ("------ Shared Memory Status --------\n");
198	printf ("segments allocated %d\n", shm_info.used_ids);
199	printf ("pages allocated %d\n", shm_info.shm_tot);
200	printf ("pages resident %d\n", shm_info.shm_rss);
201	printf ("pages swapped %d\n", shm_info.shm_swp);
202	printf ("Swap performance: %d attempts\t %d successes\n",
203	shm_info.swap_attempts, shm_info.swap_successes);
204	return;
205
206	case CREATOR:
207	printf ("------ Shared Memory Segment Creators/Owners --------\n");
208	printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
209	"shmid","perms","cuid","cgid","uid","gid");
210	break;
211
212	case TIME:
213	printf ("------ Shared Memory Attach/Detach/Change Times --------\n");
214	printf ("%-10s%-10s %-20s%-20s%-20s\n",
215	"shmid","owner","attached","detached","changed");
216	break;
217
218	case PID:
219	printf ("------ Shared Memory Creator/Last-op --------\n");
220	printf ("%-10s%-10s%-10s%-10s\n","shmid","owner","cpid","lpid");
221	break;
222
223	default:
224	printf ("------ Shared Memory Segments --------\n");
225	printf ("%-10s%-10s%-10s%-10s%-10s%-12s\n", "shmid","owner",
226	"perms","bytes","nattch","status");
227	break;
228	}
229
230	for (id = 0; id <= maxid; id++) {
231	shmid = shmctl (id, SHM_STAT, &shmseg);
232	if (shmid < 0)
233	continue;
234	if (format == CREATOR) {
235	print_perms (shmid, ipcp);
236	continue;
237	}
238	pw = getpwuid(ipcp->uid);
239	switch (format) {
240	case TIME:
241	if (pw)
242	printf ("%-10d%-10.10s", shmid, pw->pw_name);
243	else
244	printf ("%-10d%-10d", shmid, ipcp->uid);
245	printf(" %-20.16s%-20.16s%-20.16s\n",
246	shmseg.shm_atime ? ctime(&shmseg.shm_atime) + 4 : "Not set",
247	shmseg.shm_dtime ? ctime(&shmseg.shm_dtime) + 4 : "Not set",
248	shmseg.shm_ctime ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
249	break;
250	case PID:
251	if (pw)
252	printf ("%-10d%-10.10s", shmid, pw->pw_name);
253	else
254	printf ("%-10d%-10d", shmid, ipcp->uid);
255	printf ("%-10d%-10d\n",
256	shmseg.shm_cpid, shmseg.shm_lpid);
257	break;
258
259	default:
260	if (pw)
261	printf ("%-10d%-10.10s", shmid, pw->pw_name);
262	else
263	printf ("%-10d%-10d", shmid, ipcp->uid);
264	printf ("%-10o%-10d%-10d%-6s%-6s\n",
265	ipcp->mode & 0777,
266	shmseg.shm_segsz, shmseg.shm_nattch,
267	ipcp->mode & SHM_DEST ? "dest" : " ",
268	ipcp->mode & SHM_LOCKED ? "locked" : " ");
269	break;
270	}
271	}
272	return;
273	}
274
275
276	void do_sem (char format)
277	{
278	int maxid, semid, id;
279	struct semid_ds semary;
280	struct seminfo seminfo;
281	struct ipc_perm *ipcp = &semary.sem_perm;
282	struct passwd *pw;
283	union semun arg;
284
285	arg.array = (ushort *) &seminfo;
286	maxid = semctl (0, 0, SEM_INFO, arg);
287	if (maxid < 0) {
288	printf ("kernel not configured for semaphores\n");
289	return;
290	}
291
292	switch (format) {
293	case LIMITS:
294	printf ("------ Semaphore Limits --------\n");
295	arg.array = (ushort ) &seminfo; / damn union */
296	if ((semctl (0, 0, IPC_INFO, arg)) < 0 )
297	return;
298	printf ("max number of arrays = %d\n", seminfo.semmni);
299	printf ("max semaphores per array = %d\n", seminfo.semmsl);
300	printf ("max semaphores system wide = %d\n", seminfo.semmns);
301	printf ("max ops per semop call = %d\n", seminfo.semopm);
302	printf ("semaphore max value = %d\n", seminfo.semvmx);
303	return;
304
305	case STATUS:
306	printf ("------ Semaphore Status --------\n");
307	printf ("used arrays = %d\n", seminfo.semusz);
308	printf ("allocated semaphores = %d\n", seminfo.semaem);
309	return;
310
311	case CREATOR:
312	printf ("------ Semaphore Arrays Creators/Owners --------\n");
313	printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
314	"semid","perms","cuid","cgid","uid","gid");
315	break;
316
317	case TIME:
318	printf ("------ Shared Memory Operation/Change Times --------\n");
319	printf ("%-8s%-10s %-26.24s %-26.24s\n",
320	"shmid","owner","last-op","last-changed");
321	break;
322
323	case PID:
324	break;
325
326	default:
327	printf ("------ Semaphore Arrays --------\n");
328	printf ("%-10s%-10s%-10s%-10s%-12s\n",
329	"semid","owner","perms","nsems","status");
330	break;
331	}
332
333	for (id = 0; id <= maxid; id++) {
334	arg.buf = (struct semid_ds *) &semary;
335	semid = semctl (id, 0, SEM_STAT, arg);
336	if (semid < 0)
337	continue;
338	if (format == CREATOR) {
339	print_perms (semid, ipcp);
340	continue;
341	}
342	pw = getpwuid(ipcp->uid);
343	switch (format) {
344	case TIME:
345	if (pw)
346	printf ("%-8d%-10.10s", semid, pw->pw_name);
347	else
348	printf ("%-8d%-10d", semid, ipcp->uid);
349	printf (" %-26.24s %-26.24s\n",
350	semary.sem_otime ? ctime(&semary.sem_otime) : "Not set",
351	semary.sem_ctime ? ctime(&semary.sem_ctime) : "Not set");
352	break;
353	case PID:
354	break;
355
356	default:
357	if (pw)
358	printf ("%-10d%-10.9s", semid, pw->pw_name);
359	else
360	printf ("%-10d%-9d", semid, ipcp->uid);
361	printf ("%-10o%-10d\n",
362	ipcp->mode & 0777,
363	semary.sem_nsems);
364	break;
365	}
366	}
367	return;
368	}
369
370
371	void do_msg (char format)
372	{
373	int maxid, msqid, id;
374	struct msqid_ds msgque;
375	struct msginfo msginfo;
376	struct ipc_perm *ipcp = &msgque.msg_perm;
377	struct passwd *pw;
378
379	maxid = msgctl (0, MSG_INFO, (struct msqid_ds *) &msginfo);
380	if (maxid < 0) {
381	printf ("kernel not configured for shared memory\n");
382	return;
383	}
384
385	switch (format) {
386	case LIMITS:
387	if ((msgctl (0, IPC_INFO, (struct msqid_ds *) &msginfo)) < 0 )
388	return;
389	printf ("------ Messages: Limits --------\n");
390	printf ("max queues system wide = %d\n", msginfo.msgmni);
391	printf ("max size of message (bytes) = %d\n", msginfo.msgmax);
392	printf ("default max size of queue (bytes) = %d\n", msginfo.msgmnb);
393	return;
394
395	case STATUS:
396	printf ("------ Messages: Status --------\n");
397	printf ("allocated queues = %d\n", msginfo.msgpool);
398	printf ("used headers = %d\n", msginfo.msgmap);
399	printf ("used space = %d bytes\n", msginfo.msgtql);
400	return;
401
402	case CREATOR:
403	printf ("------ Message Queues: Creators/Owners --------\n");
404	printf ("%-10s%-10s%-10s%-10s%-10s%-10s\n",
405	"msqid","perms","cuid","cgid","uid","gid");
406	break;
407
408	case TIME:
409	printf ("------ Message Queues Send/Recv/Change Times --------\n");
410	printf ("%-8s%-10s %-20s%-20s%-20s\n",
411	"msqid","owner","send","recv","change");
412	break;
413
414	case PID:
415	break;
416
417	default:
418	printf ("------ Message Queues --------\n");
419	printf ("%-10s%-10s%-10s%-12s%-12s\n", "msqid","owner",
420	"perms", "used-bytes", "messages");
421	break;
422	}
423
424	for (id = 0; id <= maxid; id++) {
425	msqid = msgctl (id, MSG_STAT, &msgque);
426	if (msqid < 0)
427	continue;
428	if (format == CREATOR) {
429	print_perms (msqid, ipcp);
430	continue;
431	}
432	pw = getpwuid(ipcp->uid);
433	switch (format) {
434	case TIME:
435	if (pw)
436	printf ("%-8d%-10.10s", msqid, pw->pw_name);
437	else
438	printf ("%-8d%-10d", msqid, ipcp->uid);
439	printf (" %-20.16s%-20.16s%-20.16s\n",
440	msgque.msg_stime ? ctime(&msgque.msg_stime) + 4 : "Not set",
441	msgque.msg_rtime ? ctime(&msgque.msg_rtime) + 4 : "Not set",
442	msgque.msg_ctime ? ctime(&msgque.msg_ctime) + 4 : "Not set");
443	break;
444	case PID:
445	break;
446
447	default:
448	if (pw)
449	printf ("%-10d%-10.10s", msqid, pw->pw_name);
450	else
451	printf ("%-10d%-10d", msqid, ipcp->uid);
452	printf ("%-10o%-12d%-12d\n",
453	ipcp->mode & 0777, msgque.msg_cbytes,
454	msgque.msg_qnum);
455	break;
456	}
457	}
458	return;
459	}
460
461
462	void print_shm (int shmid)
463	{
464	struct shmid_ds shmds;
465	struct ipc_perm *ipcp = &shmds.shm_perm;
466
467	if (shmctl (shmid, IPC_STAT, &shmds) == -1) {
468	perror ("shmctl ");
469	return;
470	}
471
472	printf ("\nShared memory Segment shmid=%d\n", shmid);
473	printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n",
474	ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
475	printf ("mode=%#o\taccess_perms=%#o\n", ipcp->mode, ipcp->mode & 0777);
476	printf ("bytes=%d\tlpid=%d\tcpid=%d\tnattch=%d\n",
477	shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid,
478	shmds.shm_nattch);
479	printf ("att_time=%s", shmds.shm_atime ? ctime (&shmds.shm_atime) :
480	"Not set\n");
481	printf ("det_time=%s", shmds.shm_dtime ? ctime (&shmds.shm_dtime) :
482	"Not set\n");
483	printf ("change_time=%s", ctime (&shmds.shm_ctime));
484	printf ("\n");
485	return;
486	}
487
488
489
490	void print_msg (int msqid)
491	{
492	struct msqid_ds buf;
493	struct ipc_perm *ipcp = &buf.msg_perm;
494
495	if (msgctl (msqid, IPC_STAT, &buf) == -1) {
496	perror ("msgctl ");
497	return;
498	}
499	printf ("\nMessage Queue msqid=%d\n", msqid);
500	printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n",
501	ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode);
502	printf ("cbytes=%d\tqbytes=%d\tqnum=%d\tlspid=%d\tlrpid=%d\n",
503	buf.msg_cbytes, buf.msg_qbytes, buf.msg_qnum, buf.msg_lspid,
504	buf.msg_lrpid);
505	printf ("send_time=%srcv_time=%schange_time=%s",
506	buf.msg_rtime? ctime (&buf.msg_rtime) : "Not Set\n",
507	buf.msg_stime? ctime (&buf.msg_stime) : "Not Set\n",
508	buf.msg_ctime? ctime (&buf.msg_ctime) : "Not Set\n");
509	printf ("\n");
510	return;
511	}
512
513	void print_sem (int semid)
514	{
515	struct semid_ds semds;
516	struct ipc_perm *ipcp = &semds.sem_perm;
517	union semun arg;
518	int i;
519
520	arg.buf = &semds;
521	if (semctl (semid, 0, IPC_STAT, arg) < 0) {
522	perror ("semctl ");
523	return;
524	}
525	printf ("\nSemaphore Array semid=%d\n", semid);
526	printf ("uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n",
527	ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
528	printf ("mode=%#o, access_perms=%#o\n", ipcp->mode, ipcp->mode & 0777);
529	printf ("nsems = %d\n", semds.sem_nsems);
530	printf ("otime = %s", semds.sem_otime ? ctime (&semds.sem_otime) :
531	"Not set\n");
532	printf ("ctime = %s", ctime (&semds.sem_ctime));
533
534	printf ("%-10s%-10s%-10s%-10s%-10s\n", "semnum","value","ncount",
535	"zcount","pid");
536	arg.val = 0;
537	for (i=0; i< semds.sem_nsems; i++) {
538	int val, ncnt, zcnt, pid;
539	val = semctl (semid, i, GETVAL, arg);
540	ncnt = semctl (semid, i, GETNCNT, arg);
541	zcnt = semctl (semid, i, GETZCNT, arg);
542	pid = semctl (semid, i, GETPID, arg);
543	if (val < 0 \|\| ncnt < 0 \|\| zcnt < 0 \|\| pid < 0) {
544	perror ("semctl ");
545	exit (1);
546	}
547	printf ("%-10d%-10d%-10d%-10d%-10d\n", i, val, ncnt, zcnt, pid);
548	}
549	printf ("\n");
550	return;
551	}
552