src/statgrab/statgrab.c

/* 
 * i-scream libstatgrab
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 * 
 * 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.
 *
 * $Id: statgrab.c,v 1.28 2004/07/18 20:21:21 tdb Exp $
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <statgrab.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>

typedef enum {
        LONG_LONG = 0,
        TIME_T,
        FLOAT,
        DOUBLE,
        STRING,
        INT,
        BOOL,
        DUPLEX
} stat_type;

typedef enum {
        DISPLAY_LINUX = 0,
        DISPLAY_BSD,
        DISPLAY_MRTG,
        DISPLAY_PLAIN
} display_mode_type;

typedef enum {
        REPEAT_NONE = 0,
        REPEAT_ONCE,
        REPEAT_FOREVER
} repeat_mode_type;

typedef struct {
        char *name;
        stat_type type;
        void *stat;
} stat;

stat *stats = NULL;
int num_stats = 0;
int alloc_stats = 0;
#define INCREMENT_STATS 64

display_mode_type display_mode = DISPLAY_LINUX;
repeat_mode_type repeat_mode = REPEAT_NONE;
int repeat_time = 1;
int use_cpu_percent = 0;
int use_diffs = 0;
long float_scale_factor = 0;

/* Exit with an error message. */
void die(const char *s) {
        fprintf(stderr, "fatal: %s\n", s);
        exit(1);
}

/* Remove all the recorded stats. */
void clear_stats() {
        int i;

        for (i = 0; i < num_stats; i++)
                free(stats[i].name);
        num_stats = 0;
}

/* Add a stat. The varargs make up the name, joined with dots; the name is
   terminated with a NULL. */
void add_stat(stat_type type, void *stat, ...) {
        va_list ap;
        int len = 0;
        char *name, *p;

        /* Figure out how long the name will be, including dots and trailing
           \0. */
        va_start(ap, stat);
        while (1) {
                const char *part = va_arg(ap, const char *);
                if (part == NULL)
                        break;
                len += 1 + strlen(part);
        }
        va_end(ap);

        /* Paste the name together. */
        name = malloc(len);
        if (name == NULL)
                die("out of memory");
        p = name;
        va_start(ap, stat);
        while (1) {
                const char *part = va_arg(ap, const char *);
                int partlen;
                if (part == NULL)
                        break;
                partlen = strlen(part);
                memcpy(p, part, partlen);
                p += partlen;
                *p++ = '.';
        }
        va_end(ap);
        *--p = '\0';

        /* Replace spaces with underscores. */
        for (p = name; *p != '\0'; p++) {
                if (*p == ' ')
                        *p = '_';
        }

        /* Stretch the stats array if necessary. */
        if (num_stats >= alloc_stats) {
                alloc_stats += INCREMENT_STATS;
                stats = realloc(stats, alloc_stats * sizeof *stats);
                if (stats == NULL)
                        die("out of memory");
        }

        stats[num_stats].name = name;
        stats[num_stats].type = type;
        stats[num_stats].stat = stat;
        ++num_stats;
}

/* Compare two stats by name for qsort and bsearch. */
int stats_compare(const void *a, const void *b) {
        return strcmp(((stat *)a)->name, ((stat *)b)->name);
}

/* Compare up to the length of the key for bsearch. */
int stats_compare_prefix(const void *key, const void *item) {
        const char *kn = ((stat *)key)->name;
        const char *in = ((stat *)item)->name;

        return strncmp(kn, in, strlen(kn));
}

void populate_const() {
        static int zero = 0;

        /* Constants, for use with MRTG mode. */
        add_stat(INT, &zero, "const", "0", NULL);
}

void populate_cpu() {
        if (use_cpu_percent) {
                sg_cpu_percents *cpu_p = sg_get_cpu_percents();

                if (cpu_p != NULL) {
                        add_stat(FLOAT, &cpu_p->user,
                                 "cpu", "user", NULL);
                        add_stat(FLOAT, &cpu_p->kernel,
                                 "cpu", "kernel", NULL);
                        add_stat(FLOAT, &cpu_p->idle,
                                 "cpu", "idle", NULL);
                        add_stat(FLOAT, &cpu_p->iowait,
                                 "cpu", "iowait", NULL);
                        add_stat(FLOAT, &cpu_p->swap,
                                 "cpu", "swap", NULL);
                        add_stat(FLOAT, &cpu_p->nice,
                                 "cpu", "nice", NULL);
                        add_stat(TIME_T, &cpu_p->time_taken,
                                 "cpu", "time_taken", NULL);
                }
        } else {
                sg_cpu_stats *cpu_s;

                cpu_s = use_diffs ? sg_get_cpu_stats_diff()
                                  : sg_get_cpu_stats();
                if (cpu_s != NULL) {
                        add_stat(LONG_LONG, &cpu_s->user,
                                 "cpu", "user", NULL);
                        add_stat(LONG_LONG, &cpu_s->kernel,
                                 "cpu", "kernel", NULL);
                        add_stat(LONG_LONG, &cpu_s->idle,
                                 "cpu", "idle", NULL);
                        add_stat(LONG_LONG, &cpu_s->iowait,
                                 "cpu", "iowait", NULL);
                        add_stat(LONG_LONG, &cpu_s->swap,
                                 "cpu", "swap", NULL);
                        add_stat(LONG_LONG, &cpu_s->nice,
                                 "cpu", "nice", NULL);
                        add_stat(LONG_LONG, &cpu_s->total,
                                 "cpu", "total", NULL);
                        add_stat(TIME_T, &cpu_s->systime,
                                 "cpu", "systime", NULL);
                }
        }
}

void populate_mem() {
        sg_mem_stats *mem = sg_get_mem_stats();

        if (mem != NULL) {
                add_stat(LONG_LONG, &mem->total, "mem", "total", NULL);
                add_stat(LONG_LONG, &mem->free, "mem", "free", NULL);
                add_stat(LONG_LONG, &mem->used, "mem", "used", NULL);
                add_stat(LONG_LONG, &mem->cache, "mem", "cache", NULL);
        }
}

void populate_load() {
        sg_load_stats *load = sg_get_load_stats();

        if (load != NULL) {
                add_stat(DOUBLE, &load->min1, "load", "min1", NULL);
                add_stat(DOUBLE, &load->min5, "load", "min5", NULL);
                add_stat(DOUBLE, &load->min15, "load", "min15", NULL);
        }
}

void populate_user() {
        sg_user_stats *user = sg_get_user_stats();

        if (user != NULL) {
                add_stat(INT, &user->num_entries, "user", "num", NULL);
                add_stat(STRING, &user->name_list, "user", "names", NULL);
        }
}

void populate_swap() {
        sg_swap_stats *swap = sg_get_swap_stats();

        if (swap != NULL) {
                add_stat(LONG_LONG, &swap->total, "swap", "total", NULL);
                add_stat(LONG_LONG, &swap->used, "swap", "used", NULL);
                add_stat(LONG_LONG, &swap->free, "swap", "free", NULL);
        }
}

void populate_general() {
        /* FIXME this should be renamed to host. */
        sg_host_info *host = sg_get_host_info();

        if (host != NULL) {
                add_stat(STRING, &host->os_name,
                         "general", "os_name", NULL);
                add_stat(STRING, &host->os_release,
                         "general", "os_release", NULL);
                add_stat(STRING, &host->os_version,
                         "general", "os_version", NULL);
                add_stat(STRING, &host->platform, "general", "platform", NULL);
                add_stat(STRING, &host->hostname, "general", "hostname", NULL);
                add_stat(TIME_T, &host->uptime, "general", "uptime", NULL);
        }
}

void populate_fs() {
        int n, i;
        sg_fs_stats *disk = sg_get_fs_stats(&n);

        if (disk != NULL) {
                for (i = 0; i < n; i++) {
                        /* FIXME it'd be nicer if libstatgrab did this */
                        char *buf, *name, *p;
                        const char *device = disk[i].device_name;

                        if (strcmp(device, "/") == 0)
                                device = "root";

                        buf = strdup(device);
                        if (buf == NULL)
                                die("out of memory");

                        name = buf;
                        if (strlen(name) == 2 && name[1] == ':')
                                name[1] = '\0';
                        if (strncmp(name, "/dev/", 5) == 0)
                                name += 5;
                        while ((p = strchr(name, '/')) != NULL)
                                *p = '_';

                        add_stat(STRING, &disk[i].device_name,
                                 "fs", name, "device_name", NULL);
                        add_stat(STRING, &disk[i].fs_type,
                                 "fs", name, "fs_type", NULL);
                        add_stat(STRING, &disk[i].mnt_point,
                                 "fs", name, "mnt_point", NULL);
                        add_stat(LONG_LONG, &disk[i].size,
                                 "fs", name, "size", NULL);
                        add_stat(LONG_LONG, &disk[i].used,
                                 "fs", name, "used", NULL);
                        add_stat(LONG_LONG, &disk[i].avail,
                                 "fs", name, "avail", NULL);
                        add_stat(LONG_LONG, &disk[i].total_inodes,
                                 "fs", name, "total_inodes", NULL);
                        add_stat(LONG_LONG, &disk[i].used_inodes,
                                 "fs", name, "used_inodes", NULL);
                        add_stat(LONG_LONG, &disk[i].free_inodes,
                                 "fs", name, "free_inodes", NULL);

                        free(buf);
                }
        }
}

void populate_disk() {
        int n, i;
        sg_disk_io_stats *diskio;

        diskio = use_diffs ? sg_get_disk_io_stats_diff(&n)
                           : sg_get_disk_io_stats(&n);
        if (diskio != NULL) {
                for (i = 0; i < n; i++) {
                        const char *name = diskio[i].disk_name;
        
                        add_stat(STRING, &diskio[i].disk_name,
                                 "disk", name, "disk_name", NULL);
                        add_stat(LONG_LONG, &diskio[i].read_bytes,
                                 "disk", name, "read_bytes", NULL);
                        add_stat(LONG_LONG, &diskio[i].write_bytes,
                                 "disk", name, "write_bytes", NULL);
                        add_stat(TIME_T, &diskio[i].systime,
                                 "disk", name, "systime", NULL);
                }
        }
}

void populate_proc() {
        /* FIXME expose individual process info too */
        sg_process_count *proc = sg_get_process_count();

        if (proc != NULL) {
                add_stat(INT, &proc->total, "proc", "total", NULL);
                add_stat(INT, &proc->running, "proc", "running", NULL);
                add_stat(INT, &proc->sleeping, "proc", "sleeping", NULL);
                add_stat(INT, &proc->stopped, "proc", "stopped", NULL);
                add_stat(INT, &proc->zombie, "proc", "zombie", NULL);
        }
}

void populate_net() {
        int num_io, num_iface, i;
        sg_network_io_stats *io;
        sg_network_iface_stats *iface;

        io = use_diffs ? sg_get_network_io_stats_diff(&num_io)
                       : sg_get_network_io_stats(&num_io);
        if (io != NULL) {
                for (i = 0; i < num_io; i++) {
                        const char *name = io[i].interface_name;
        
                        add_stat(STRING, &io[i].interface_name,
                                 "net", name, "interface_name", NULL);
                        add_stat(LONG_LONG, &io[i].tx,
                                 "net", name, "tx", NULL);
                        add_stat(LONG_LONG, &io[i].rx,
                                 "net", name, "rx", NULL);
                        add_stat(LONG_LONG, &io[i].ipackets,
                                 "net", name, "ipackets", NULL);
                        add_stat(LONG_LONG, &io[i].opackets,
                                 "net", name, "opackets", NULL);
                        add_stat(LONG_LONG, &io[i].ierrors,
                                 "net", name, "ierrors", NULL);
                        add_stat(LONG_LONG, &io[i].oerrors,
                                 "net", name, "oerrors", NULL);
                        add_stat(LONG_LONG, &io[i].collisions,
                                 "net", name, "collisions", NULL);
                        add_stat(TIME_T, &io[i].systime,
                                 "net", name, "systime", NULL);
                }
        }

        iface = sg_get_network_iface_stats(&num_iface);
        if (iface != NULL) {
                for (i = 0; i < num_iface; i++) {
                        const char *name = iface[i].interface_name;
                        int had_io = 0, j;

                        /* If there wasn't a corresponding io stat,
                           add interface_name from here. */
                        if (io != NULL) {
                                for (j = 0; j < num_io; j++) {
                                        if (strcmp(io[j].interface_name,
                                                   name) == 0) {
                                                had_io = 1;
                                                break;
                                        }
                                }
                        }
                        if (!had_io) {
                                add_stat(STRING, &iface[i].interface_name,
                                        "net", name, "interface_name", NULL);
                        }

                        add_stat(INT, &iface[i].speed,
                                 "net", name, "speed", NULL);
                        add_stat(BOOL, &iface[i].up,
                                 "net", name, "up", NULL);
                        add_stat(DUPLEX, &iface[i].dup,
                                 "net", name, "duplex", NULL);
                }
        }
}

void populate_page() {
        sg_page_stats *page;

        page = use_diffs ? sg_get_page_stats_diff() : sg_get_page_stats();
        if (page != NULL) {
                add_stat(LONG_LONG, &page->pages_pagein, "page", "in", NULL);
                add_stat(LONG_LONG, &page->pages_pageout, "page", "out", NULL);
                add_stat(TIME_T, &page->systime, "page", "systime", NULL);
        }
}

typedef struct {
        const char *name;
        void (*populate)();
        int interesting;
} toplevel;
toplevel toplevels[] = {
        {"const.", populate_const, 0},
        {"cpu.", populate_cpu, 0},
        {"mem.", populate_mem, 0},
        {"load.", populate_load, 0},
        {"user.", populate_user, 0},
        {"swap.", populate_swap, 0},
        {"general.", populate_general, 0},
        {"fs.", populate_fs, 0},
        {"disk.", populate_disk, 0},
        {"proc.", populate_proc, 0},
        {"net.", populate_net, 0},
        {"page.", populate_page, 0},
        {NULL, NULL, 0}
};

/* Set the "interesting" flag on the sections that we actually need to
   fetch. */
void select_interesting(int argc, char **argv) {
        toplevel *t;

        if (argc == 0) {
                for (t = &toplevels[0]; t->name != NULL; t++)
                        t->interesting = 1;
        } else {
                int i;

                for (i = 0; i < argc; i++) {
                        for (t = &toplevels[0]; t->name != NULL; t++) {
                                if (strncmp(argv[i], t->name,
                                            strlen(t->name)) == 0) {
                                        t->interesting = 1;
                                        break;
                                }
                        }
                }
        }
}

/* Clear and rebuild the stats array. */
void get_stats() {
        toplevel *t;

        clear_stats();

        for (t = &toplevels[0]; t->name != NULL; t++) {
                if (t->interesting)
                        t->populate();
        }

        if (stats != NULL)
                qsort(stats, num_stats, sizeof *stats, stats_compare);
}

/* Print the value of a stat. */
void print_stat_value(const stat *s) {
        void *v = s->stat;
        double fv;
        long l;

        switch (s->type) {
        case LONG_LONG:
                printf("%lld", *(long long *)v);
                break;
        case TIME_T:
                /* FIXME option for formatted time? */
                l = *(time_t *)v;
                printf("%ld", l);
                break;
        case FLOAT:
        case DOUBLE:
                if (s->type == FLOAT) {
                        fv = *(float *)v;
                } else {
                        fv = *(double *)v;
                }
                if (float_scale_factor != 0) {
                        printf("%ld", (long)(float_scale_factor * fv));
                } else {
                        printf("%f", fv);
                }
                break;
        case STRING:
                /* FIXME escaping? */
                printf("%s", *(char **)v);
                break;
        case INT:
                printf("%d", *(int *)v);
                break;
        case BOOL:
                printf("%s", *(int *)v ? "true" : "false");
                break;
        case DUPLEX:
                switch (*(sg_iface_duplex *) v) {
                case SG_IFACE_DUPLEX_FULL:
                        printf("full");
                        break;
                case SG_IFACE_DUPLEX_HALF:
                        printf("half");
                        break;
                default:
                        printf("unknown");
                        break;
                }
                break;
        }
}

/* Print the name and value of a stat. */
void print_stat(const stat *s) {
        switch (display_mode) {
        case DISPLAY_LINUX:
                printf("%s = ", s->name);
                break;
        case DISPLAY_BSD:
                printf("%s: ", s->name);
                break;
        case DISPLAY_MRTG:
        case DISPLAY_PLAIN:
                break;
        }
        print_stat_value(s);
        printf("\n");
}

/* Print stats as specified on the provided command line. */
void print_stats(int argc, char **argv) {
        int i;

        if (argc == optind) {
                /* Print all stats. */
                for (i = 0; i < num_stats; i++)
                        print_stat(&stats[i]);
        } else {
                /* Print selected stats. */
                for (i = optind; i < argc; i++) {
                        char *name = argv[i];
                        stat key;
                        const stat *s, *end;
                        int (*compare)(const void *, const void *);

                        key.name = name;
                        if (name[strlen(name) - 1] == '.')
                                compare = stats_compare_prefix;
                        else
                                compare = stats_compare;

                        if (stats == NULL) {
                                s = NULL;
                        } else {
                                s = (const stat *)bsearch(&key, stats,
                                                          num_stats,
                                                          sizeof *stats,
                                                          compare);
                        }

                        if (s == NULL) {
                                printf("Unknown stat %s\n", name);
                                continue;
                        }

                        /* Find the range of stats the user wanted. */
                        for (; s >= stats; s--) {
                                if (compare(&key, s) != 0)
                                        break;
                        }
                        s++;
                        for (end = s; end < &stats[num_stats]; end++) {
                                if (compare(&key, end) != 0)
                                        break;
                        }

                        /* And print them. */
                        for (; s < end; s++) {
                                print_stat(s);
                        }
                }
        }
}

void usage() {
        printf("Usage: statgrab [OPTION]... [STAT]...\n"
               "Display system statistics.\n"
               "\n"
               "If no STATs are given, all will be displayed. Specify 'STAT.' to display all\n"
               "statistics starting with that prefix.\n"
               "\n");
        printf("  -l     Linux sysctl-style output (default)\n"
               "  -b     BSD sysctl-style output\n"
               "  -m     MRTG-compatible output\n"
               "  -u     Plain output (only show values)\n"
               "  -n     Display cumulative stats once (default)\n"
               "  -s     Display stat differences repeatedly\n"
               "  -o     Display stat differences once\n"
               "  -t DELAY   When repeating, wait DELAY seconds between updates (default 1)\n"
               "  -p     Display CPU usage differences as percentages rather than\n"
               "             absolute values\n"
               "  -f SCALE   Display floating-point values as integers scaled by FACTOR\n"
               "\n");
        printf("Version %s - report bugs to <%s>.\n",
               PACKAGE_VERSION, PACKAGE_BUGREPORT);
        exit(1);
}

int main(int argc, char **argv) {
        opterr = 0;
        while (1) {
                int c = getopt(argc, argv, "lbmunsot:pf:");
                if (c == -1)
                        break;
                switch (c) {
                case 'l':
                        display_mode = DISPLAY_LINUX;
                        break;
                case 'b':
                        display_mode = DISPLAY_BSD;
                        break;
                case 'm':
                        display_mode = DISPLAY_MRTG;
                        break;
                case 'u':
                        display_mode = DISPLAY_PLAIN;
                        break;
                case 'n':
                        repeat_mode = REPEAT_NONE;
                        break;
                case 's':
                        repeat_mode = REPEAT_FOREVER;
                        break;
                case 'o':
                        repeat_mode = REPEAT_ONCE;
                        break;
                case 't':
                        repeat_time = atoi(optarg);
                        break;
                case 'p':
                        use_cpu_percent = 1;
                        break;
                case 'f':
                        float_scale_factor = atol(optarg);
                        break;
                default:
                        usage();
                }
        }

        if (display_mode == DISPLAY_MRTG) {
                if ((argc - optind) != 2)
                        die("mrtg mode: must specify exactly two stats");
                if (repeat_mode == REPEAT_FOREVER)
                        die("mrtg mode: cannot repeat display");
        }

        if (use_cpu_percent && repeat_mode == REPEAT_NONE)
                die("CPU percentage usage display requires stat differences");

        if (repeat_mode == REPEAT_NONE)
                use_diffs = 0;
        else
                use_diffs = 1;

        select_interesting(argc - optind, &argv[optind]);

        /* We don't care if sg_init fails, because we can just display
           the statistics that can be read as non-root. */
        sg_init();
        if (sg_drop_privileges() != 0)
                die("Failed to drop setuid/setgid privileges");

        switch (repeat_mode) {
        case REPEAT_NONE:
                get_stats();
                print_stats(argc, argv);
                break;
        case REPEAT_ONCE:
                get_stats();
                sleep(repeat_time);
                get_stats();
                print_stats(argc, argv);
                break;
        case REPEAT_FOREVER:
                while (1) {
                        get_stats();
                        print_stats(argc, argv);
                        printf("\n");
                        sleep(repeat_time);
                }
        }

        if (display_mode == DISPLAY_MRTG) {
                printf("\n");
                printf("statgrab\n");
        }

        return 0;
}

Revision:	1.29
Committed:	Tue Aug 10 18:50:37 2004 UTC (21 years, 2 months ago) by ats
Content type:	text/plain
Branch:	MAIN
Changes since 1.28:	+18 -5 lines
Log Message:	Add -f option to scale floating-point values to integers for MRTG output.
#	User	Rev	Content
1	tdb	1.1	/*
2	tdb	1.25	* i-scream libstatgrab
3	tdb	1.1	* http://www.i-scream.org
4	tdb	1.16	* Copyright (C) 2000-2004 i-scream
5	tdb	1.1	*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19	tdb	1.17	*
20	ats	1.29	* $Id: statgrab.c,v 1.28 2004/07/18 20:21:21 tdb Exp $
21	tdb	1.1	*/
22
23	tdb	1.3	#ifdef HAVE_CONFIG_H
24			#include "config.h"
25			#endif
26
27	tdb	1.1	#include <statgrab.h>
28			#include <string.h>
29			#include <stdio.h>
30			#include <stdarg.h>
31			#include <stdlib.h>
32			#include <unistd.h>
33
34			typedef enum {
35			LONG_LONG = 0,
36			TIME_T,
37			FLOAT,
38			DOUBLE,
39			STRING,
40	ats	1.18	INT,
41	ats	1.20	BOOL,
42	ats	1.18	DUPLEX
43	tdb	1.1	} stat_type;
44
45			typedef enum {
46			DISPLAY_LINUX = 0,
47			DISPLAY_BSD,
48			DISPLAY_MRTG,
49			DISPLAY_PLAIN
50			} display_mode_type;
51
52			typedef enum {
53			REPEAT_NONE = 0,
54			REPEAT_ONCE,
55			REPEAT_FOREVER
56			} repeat_mode_type;
57
58			typedef struct {
59			char *name;
60			stat_type type;
61			void *stat;
62			} stat;
63
64			stat *stats = NULL;
65			int num_stats = 0;
66			int alloc_stats = 0;
67			#define INCREMENT_STATS 64
68
69			display_mode_type display_mode = DISPLAY_LINUX;
70			repeat_mode_type repeat_mode = REPEAT_NONE;
71			int repeat_time = 1;
72			int use_cpu_percent = 0;
73	ats	1.8	int use_diffs = 0;
74	ats	1.29	long float_scale_factor = 0;
75	tdb	1.1
76			/* Exit with an error message. */
77			void die(const char *s) {
78			fprintf(stderr, "fatal: %s\n", s);
79			exit(1);
80			}
81
82			/* Remove all the recorded stats. */
83			void clear_stats() {
84			int i;
85
86			for (i = 0; i < num_stats; i++)
87			free(stats[i].name);
88			num_stats = 0;
89			}
90
91			/* Add a stat. The varargs make up the name, joined with dots; the name is
92			terminated with a NULL. */
93			void add_stat(stat_type type, void *stat, ...) {
94			va_list ap;
95			int len = 0;
96			char name, p;
97
98			/* Figure out how long the name will be, including dots and trailing
99			\0. */
100			va_start(ap, stat);
101			while (1) {
102			const char part = va_arg(ap, const char );
103			if (part == NULL)
104			break;
105			len += 1 + strlen(part);
106			}
107			va_end(ap);
108
109			/* Paste the name together. */
110			name = malloc(len);
111			if (name == NULL)
112			die("out of memory");
113			p = name;
114			va_start(ap, stat);
115			while (1) {
116			const char part = va_arg(ap, const char );
117			int partlen;
118			if (part == NULL)
119			break;
120			partlen = strlen(part);
121			memcpy(p, part, partlen);
122			p += partlen;
123			*p++ = '.';
124			}
125			va_end(ap);
126			*--p = '\0';
127
128			/* Replace spaces with underscores. */
129			for (p = name; *p != '\0'; p++) {
130			if (*p == ' ')
131			*p = '_';
132			}
133
134			/* Stretch the stats array if necessary. */
135			if (num_stats >= alloc_stats) {
136			alloc_stats += INCREMENT_STATS;
137			stats = realloc(stats, alloc_stats * sizeof *stats);
138			if (stats == NULL)
139			die("out of memory");
140			}
141
142			stats[num_stats].name = name;
143			stats[num_stats].type = type;
144			stats[num_stats].stat = stat;
145			++num_stats;
146			}
147
148	ats	1.9	/* Compare two stats by name for qsort and bsearch. */
149	tdb	1.1	int stats_compare(const void a, const void b) {
150			return strcmp(((stat )a)->name, ((stat )b)->name);
151			}
152
153	ats	1.9	/* Compare up to the length of the key for bsearch. */
154			int stats_compare_prefix(const void key, const void item) {
155			const char kn = ((stat )key)->name;
156			const char in = ((stat )item)->name;
157
158			return strncmp(kn, in, strlen(kn));
159			}
160
161	ats	1.8	void populate_const() {
162	tdb	1.1	static int zero = 0;
163
164			/* Constants, for use with MRTG mode. */
165			add_stat(INT, &zero, "const", "0", NULL);
166	ats	1.8	}
167	tdb	1.1
168	ats	1.8	void populate_cpu() {
169			if (use_cpu_percent) {
170	ats	1.24	sg_cpu_percents *cpu_p = sg_get_cpu_percents();
171	tdb	1.1
172			if (cpu_p != NULL) {
173			add_stat(FLOAT, &cpu_p->user,
174	tdb	1.26	"cpu", "user", NULL);
175	tdb	1.1	add_stat(FLOAT, &cpu_p->kernel,
176	tdb	1.26	"cpu", "kernel", NULL);
177	tdb	1.1	add_stat(FLOAT, &cpu_p->idle,
178	tdb	1.26	"cpu", "idle", NULL);
179	tdb	1.1	add_stat(FLOAT, &cpu_p->iowait,
180	tdb	1.26	"cpu", "iowait", NULL);
181	tdb	1.1	add_stat(FLOAT, &cpu_p->swap,
182	tdb	1.26	"cpu", "swap", NULL);
183	tdb	1.1	add_stat(FLOAT, &cpu_p->nice,
184	tdb	1.26	"cpu", "nice", NULL);
185	ats	1.7	add_stat(TIME_T, &cpu_p->time_taken,
186	tdb	1.26	"cpu", "time_taken", NULL);
187	tdb	1.1	}
188			} else {
189	ats	1.24	sg_cpu_stats *cpu_s;
190	ats	1.8
191	ats	1.24	cpu_s = use_diffs ? sg_get_cpu_stats_diff()
192	tdb	1.26	: sg_get_cpu_stats();
193	tdb	1.1	if (cpu_s != NULL) {
194			add_stat(LONG_LONG, &cpu_s->user,
195	tdb	1.26	"cpu", "user", NULL);
196	tdb	1.1	add_stat(LONG_LONG, &cpu_s->kernel,
197	tdb	1.26	"cpu", "kernel", NULL);
198	tdb	1.1	add_stat(LONG_LONG, &cpu_s->idle,
199	tdb	1.26	"cpu", "idle", NULL);
200	tdb	1.1	add_stat(LONG_LONG, &cpu_s->iowait,
201	tdb	1.26	"cpu", "iowait", NULL);
202	tdb	1.1	add_stat(LONG_LONG, &cpu_s->swap,
203	tdb	1.26	"cpu", "swap", NULL);
204	tdb	1.1	add_stat(LONG_LONG, &cpu_s->nice,
205	tdb	1.26	"cpu", "nice", NULL);
206	tdb	1.1	add_stat(LONG_LONG, &cpu_s->total,
207	tdb	1.26	"cpu", "total", NULL);
208	tdb	1.1	add_stat(TIME_T, &cpu_s->systime,
209	tdb	1.26	"cpu", "systime", NULL);
210	tdb	1.1	}
211			}
212	ats	1.8	}
213
214			void populate_mem() {
215	ats	1.24	sg_mem_stats *mem = sg_get_mem_stats();
216	tdb	1.1
217			if (mem != NULL) {
218			add_stat(LONG_LONG, &mem->total, "mem", "total", NULL);
219			add_stat(LONG_LONG, &mem->free, "mem", "free", NULL);
220			add_stat(LONG_LONG, &mem->used, "mem", "used", NULL);
221			add_stat(LONG_LONG, &mem->cache, "mem", "cache", NULL);
222			}
223	ats	1.8	}
224
225			void populate_load() {
226	ats	1.24	sg_load_stats *load = sg_get_load_stats();
227	tdb	1.1
228			if (load != NULL) {
229			add_stat(DOUBLE, &load->min1, "load", "min1", NULL);
230			add_stat(DOUBLE, &load->min5, "load", "min5", NULL);
231			add_stat(DOUBLE, &load->min15, "load", "min15", NULL);
232			}
233	ats	1.8	}
234
235			void populate_user() {
236	ats	1.24	sg_user_stats *user = sg_get_user_stats();
237	tdb	1.1
238			if (user != NULL) {
239			add_stat(INT, &user->num_entries, "user", "num", NULL);
240			add_stat(STRING, &user->name_list, "user", "names", NULL);
241			}
242	ats	1.8	}
243
244			void populate_swap() {
245	ats	1.24	sg_swap_stats *swap = sg_get_swap_stats();
246	tdb	1.1
247			if (swap != NULL) {
248			add_stat(LONG_LONG, &swap->total, "swap", "total", NULL);
249			add_stat(LONG_LONG, &swap->used, "swap", "used", NULL);
250			add_stat(LONG_LONG, &swap->free, "swap", "free", NULL);
251			}
252	ats	1.8	}
253
254			void populate_general() {
255	ats	1.24	/* FIXME this should be renamed to host. */
256			sg_host_info *host = sg_get_host_info();
257	tdb	1.1
258	ats	1.24	if (host != NULL) {
259			add_stat(STRING, &host->os_name,
260	tdb	1.26	"general", "os_name", NULL);
261	ats	1.24	add_stat(STRING, &host->os_release,
262	tdb	1.26	"general", "os_release", NULL);
263	ats	1.24	add_stat(STRING, &host->os_version,
264	tdb	1.26	"general", "os_version", NULL);
265	ats	1.24	add_stat(STRING, &host->platform, "general", "platform", NULL);
266			add_stat(STRING, &host->hostname, "general", "hostname", NULL);
267			add_stat(TIME_T, &host->uptime, "general", "uptime", NULL);
268	tdb	1.1	}
269	ats	1.8	}
270
271			void populate_fs() {
272			int n, i;
273	ats	1.24	sg_fs_stats *disk = sg_get_fs_stats(&n);
274	tdb	1.1
275			if (disk != NULL) {
276			for (i = 0; i < n; i++) {
277			/* FIXME it'd be nicer if libstatgrab did this */
278	ats	1.10	char buf, name, *p;
279			const char *device = disk[i].device_name;
280
281			if (strcmp(device, "/") == 0)
282			device = "root";
283
284			buf = strdup(device);
285			if (buf == NULL)
286			die("out of memory");
287
288			name = buf;
289	ats	1.13	if (strlen(name) == 2 && name[1] == ':')
290			name[1] = '\0';
291	ats	1.10	if (strncmp(name, "/dev/", 5) == 0)
292			name += 5;
293			while ((p = strchr(name, '/')) != NULL)
294			*p = '_';
295
296	tdb	1.1	add_stat(STRING, &disk[i].device_name,
297	tdb	1.26	"fs", name, "device_name", NULL);
298	tdb	1.1	add_stat(STRING, &disk[i].fs_type,
299	tdb	1.26	"fs", name, "fs_type", NULL);
300	tdb	1.1	add_stat(STRING, &disk[i].mnt_point,
301	tdb	1.26	"fs", name, "mnt_point", NULL);
302	tdb	1.1	add_stat(LONG_LONG, &disk[i].size,
303	tdb	1.26	"fs", name, "size", NULL);
304	tdb	1.1	add_stat(LONG_LONG, &disk[i].used,
305	tdb	1.26	"fs", name, "used", NULL);
306	tdb	1.1	add_stat(LONG_LONG, &disk[i].avail,
307	tdb	1.26	"fs", name, "avail", NULL);
308	tdb	1.1	add_stat(LONG_LONG, &disk[i].total_inodes,
309	tdb	1.26	"fs", name, "total_inodes", NULL);
310	tdb	1.1	add_stat(LONG_LONG, &disk[i].used_inodes,
311	tdb	1.26	"fs", name, "used_inodes", NULL);
312	tdb	1.1	add_stat(LONG_LONG, &disk[i].free_inodes,
313	tdb	1.26	"fs", name, "free_inodes", NULL);
314	ats	1.10
315			free(buf);
316	tdb	1.1	}
317			}
318	ats	1.8	}
319
320			void populate_disk() {
321			int n, i;
322	ats	1.24	sg_disk_io_stats *diskio;
323	tdb	1.1
324	ats	1.24	diskio = use_diffs ? sg_get_disk_io_stats_diff(&n)
325	tdb	1.26	: sg_get_disk_io_stats(&n);
326	tdb	1.1	if (diskio != NULL) {
327			for (i = 0; i < n; i++) {
328			const char *name = diskio[i].disk_name;
329
330			add_stat(STRING, &diskio[i].disk_name,
331	tdb	1.26	"disk", name, "disk_name", NULL);
332	tdb	1.1	add_stat(LONG_LONG, &diskio[i].read_bytes,
333	tdb	1.26	"disk", name, "read_bytes", NULL);
334	tdb	1.1	add_stat(LONG_LONG, &diskio[i].write_bytes,
335	tdb	1.26	"disk", name, "write_bytes", NULL);
336	tdb	1.1	add_stat(TIME_T, &diskio[i].systime,
337	tdb	1.26	"disk", name, "systime", NULL);
338	tdb	1.1	}
339			}
340	ats	1.8	}
341
342			void populate_proc() {
343	ats	1.24	/* FIXME expose individual process info too */
344			sg_process_count *proc = sg_get_process_count();
345	tdb	1.1
346			if (proc != NULL) {
347			add_stat(INT, &proc->total, "proc", "total", NULL);
348			add_stat(INT, &proc->running, "proc", "running", NULL);
349			add_stat(INT, &proc->sleeping, "proc", "sleeping", NULL);
350			add_stat(INT, &proc->stopped, "proc", "stopped", NULL);
351			add_stat(INT, &proc->zombie, "proc", "zombie", NULL);
352			}
353	ats	1.8	}
354
355			void populate_net() {
356	ats	1.27	int num_io, num_iface, i;
357	ats	1.24	sg_network_io_stats *io;
358			sg_network_iface_stats *iface;
359	tdb	1.1
360	ats	1.27	io = use_diffs ? sg_get_network_io_stats_diff(&num_io)
361			: sg_get_network_io_stats(&num_io);
362	ats	1.24	if (io != NULL) {
363	ats	1.27	for (i = 0; i < num_io; i++) {
364	ats	1.24	const char *name = io[i].interface_name;
365	tdb	1.1
366	ats	1.24	add_stat(STRING, &io[i].interface_name,
367	tdb	1.26	"net", name, "interface_name", NULL);
368	ats	1.24	add_stat(LONG_LONG, &io[i].tx,
369	tdb	1.26	"net", name, "tx", NULL);
370	ats	1.24	add_stat(LONG_LONG, &io[i].rx,
371	tdb	1.26	"net", name, "rx", NULL);
372	ats	1.24	add_stat(LONG_LONG, &io[i].ipackets,
373	tdb	1.26	"net", name, "ipackets", NULL);
374	ats	1.24	add_stat(LONG_LONG, &io[i].opackets,
375	tdb	1.26	"net", name, "opackets", NULL);
376	ats	1.24	add_stat(LONG_LONG, &io[i].ierrors,
377	tdb	1.26	"net", name, "ierrors", NULL);
378	ats	1.24	add_stat(LONG_LONG, &io[i].oerrors,
379	tdb	1.26	"net", name, "oerrors", NULL);
380	ats	1.24	add_stat(LONG_LONG, &io[i].collisions,
381	tdb	1.26	"net", name, "collisions", NULL);
382	ats	1.24	add_stat(TIME_T, &io[i].systime,
383	tdb	1.26	"net", name, "systime", NULL);
384	tdb	1.1	}
385			}
386	ats	1.18
387	ats	1.27	iface = sg_get_network_iface_stats(&num_iface);
388	ats	1.18	if (iface != NULL) {
389	ats	1.27	for (i = 0; i < num_iface; i++) {
390	ats	1.18	const char *name = iface[i].interface_name;
391	ats	1.27	int had_io = 0, j;
392
393			/* If there wasn't a corresponding io stat,
394			add interface_name from here. */
395			if (io != NULL) {
396			for (j = 0; j < num_io; j++) {
397			if (strcmp(io[j].interface_name,
398			name) == 0) {
399			had_io = 1;
400			break;
401			}
402			}
403			}
404			if (!had_io) {
405			add_stat(STRING, &iface[i].interface_name,
406			"net", name, "interface_name", NULL);
407			}
408	ats	1.18
409			add_stat(INT, &iface[i].speed,
410	tdb	1.26	"net", name, "speed", NULL);
411	ats	1.20	add_stat(BOOL, &iface[i].up,
412	tdb	1.26	"net", name, "up", NULL);
413	ats	1.18	add_stat(DUPLEX, &iface[i].dup,
414	tdb	1.26	"net", name, "duplex", NULL);
415	ats	1.18	}
416			}
417	ats	1.8	}
418
419			void populate_page() {
420	ats	1.24	sg_page_stats *page;
421	tdb	1.1
422	ats	1.24	page = use_diffs ? sg_get_page_stats_diff() : sg_get_page_stats();
423	tdb	1.1	if (page != NULL) {
424			add_stat(LONG_LONG, &page->pages_pagein, "page", "in", NULL);
425			add_stat(LONG_LONG, &page->pages_pageout, "page", "out", NULL);
426	ats	1.11	add_stat(TIME_T, &page->systime, "page", "systime", NULL);
427	tdb	1.1	}
428	ats	1.8	}
429
430			typedef struct {
431			const char *name;
432			void (*populate)();
433			int interesting;
434			} toplevel;
435			toplevel toplevels[] = {
436			{"const.", populate_const, 0},
437			{"cpu.", populate_cpu, 0},
438			{"mem.", populate_mem, 0},
439			{"load.", populate_load, 0},
440			{"user.", populate_user, 0},
441			{"swap.", populate_swap, 0},
442			{"general.", populate_general, 0},
443			{"fs.", populate_fs, 0},
444			{"disk.", populate_disk, 0},
445			{"proc.", populate_proc, 0},
446			{"net.", populate_net, 0},
447			{"page.", populate_page, 0},
448			{NULL, NULL, 0}
449			};
450
451			/* Set the "interesting" flag on the sections that we actually need to
452			fetch. */
453			void select_interesting(int argc, char **argv) {
454			toplevel *t;
455
456			if (argc == 0) {
457			for (t = &toplevels[0]; t->name != NULL; t++)
458			t->interesting = 1;
459			} else {
460			int i;
461
462			for (i = 0; i < argc; i++) {
463			for (t = &toplevels[0]; t->name != NULL; t++) {
464			if (strncmp(argv[i], t->name,
465	tdb	1.26	strlen(t->name)) == 0) {
466	ats	1.8	t->interesting = 1;
467			break;
468			}
469			}
470			}
471			}
472			}
473
474			/* Clear and rebuild the stats array. */
475			void get_stats() {
476			toplevel *t;
477
478			clear_stats();
479
480			for (t = &toplevels[0]; t->name != NULL; t++) {
481			if (t->interesting)
482			t->populate();
483			}
484	tdb	1.1
485	ats	1.21	if (stats != NULL)
486			qsort(stats, num_stats, sizeof *stats, stats_compare);
487	tdb	1.1	}
488
489			/* Print the value of a stat. */
490			void print_stat_value(const stat *s) {
491			void *v = s->stat;
492	ats	1.29	double fv;
493	ats	1.23	long l;
494	tdb	1.1
495			switch (s->type) {
496			case LONG_LONG:
497			printf("%lld", (long long )v);
498			break;
499			case TIME_T:
500			/* FIXME option for formatted time? */
501	ats	1.23	l = (time_t )v;
502			printf("%ld", l);
503	tdb	1.1	break;
504			case FLOAT:
505			case DOUBLE:
506	ats	1.29	if (s->type == FLOAT) {
507			fv = (float )v;
508			} else {
509			fv = (double )v;
510			}
511			if (float_scale_factor != 0) {
512			printf("%ld", (long)(float_scale_factor * fv));
513			} else {
514			printf("%f", fv);
515			}
516	tdb	1.1	break;
517			case STRING:
518			/* FIXME escaping? */
519			printf("%s", (char *)v);
520			break;
521			case INT:
522			printf("%d", (int )v);
523	ats	1.20	break;
524			case BOOL:
525			printf("%s", (int )v ? "true" : "false");
526	ats	1.18	break;
527			case DUPLEX:
528	ats	1.24	switch ((sg_iface_duplex ) v) {
529			case SG_IFACE_DUPLEX_FULL:
530	ats	1.18	printf("full");
531			break;
532	ats	1.24	case SG_IFACE_DUPLEX_HALF:
533	ats	1.18	printf("half");
534			break;
535			default:
536			printf("unknown");
537			break;
538			}
539	tdb	1.1	break;
540			}
541			}
542
543			/* Print the name and value of a stat. */
544			void print_stat(const stat *s) {
545			switch (display_mode) {
546			case DISPLAY_LINUX:
547			printf("%s = ", s->name);
548			break;
549			case DISPLAY_BSD:
550			printf("%s: ", s->name);
551			break;
552			case DISPLAY_MRTG:
553			case DISPLAY_PLAIN:
554			break;
555			}
556			print_stat_value(s);
557			printf("\n");
558			}
559
560			/* Print stats as specified on the provided command line. */
561			void print_stats(int argc, char **argv) {
562			int i;
563
564			if (argc == optind) {
565			/* Print all stats. */
566			for (i = 0; i < num_stats; i++)
567			print_stat(&stats[i]);
568			} else {
569			/* Print selected stats. */
570			for (i = optind; i < argc; i++) {
571	ats	1.9	char *name = argv[i];
572	tdb	1.1	stat key;
573	ats	1.9	const stat s, end;
574			int (compare)(const void , const void *);
575
576			key.name = name;
577			if (name[strlen(name) - 1] == '.')
578			compare = stats_compare_prefix;
579			else
580			compare = stats_compare;
581	tdb	1.1
582	ats	1.21	if (stats == NULL) {
583			s = NULL;
584			} else {
585			s = (const stat *)bsearch(&key, stats,
586	tdb	1.26	num_stats,
587			sizeof *stats,
588			compare);
589	ats	1.21	}
590
591	ats	1.9	if (s == NULL) {
592			printf("Unknown stat %s\n", name);
593			continue;
594			}
595
596			/* Find the range of stats the user wanted. */
597			for (; s >= stats; s--) {
598			if (compare(&key, s) != 0)
599			break;
600			}
601			s++;
602			for (end = s; end < &stats[num_stats]; end++) {
603			if (compare(&key, end) != 0)
604			break;
605			}
606
607			/* And print them. */
608			for (; s < end; s++) {
609	tdb	1.1	print_stat(s);
610			}
611			}
612			}
613			}
614
615			void usage() {
616			printf("Usage: statgrab [OPTION]... [STAT]...\n"
617	ats	1.9	"Display system statistics.\n"
618			"\n"
619			"If no STATs are given, all will be displayed. Specify 'STAT.' to display all\n"
620			"statistics starting with that prefix.\n"
621	tdb	1.1	"\n");
622	tdb	1.26	printf(" -l Linux sysctl-style output (default)\n"
623			" -b BSD sysctl-style output\n"
624			" -m MRTG-compatible output\n"
625			" -u Plain output (only show values)\n"
626			" -n Display cumulative stats once (default)\n"
627			" -s Display stat differences repeatedly\n"
628			" -o Display stat differences once\n"
629	tdb	1.1	" -t DELAY When repeating, wait DELAY seconds between updates (default 1)\n"
630	tdb	1.26	" -p Display CPU usage differences as percentages rather than\n"
631			" absolute values\n"
632	ats	1.29	" -f SCALE Display floating-point values as integers scaled by FACTOR\n"
633	tdb	1.1	"\n");
634	tdb	1.2	printf("Version %s - report bugs to <%s>.\n",
635	ats	1.5	PACKAGE_VERSION, PACKAGE_BUGREPORT);
636	tdb	1.1	exit(1);
637			}
638
639			int main(int argc, char **argv) {
640			opterr = 0;
641			while (1) {
642	ats	1.29	int c = getopt(argc, argv, "lbmunsot:pf:");
643	tdb	1.1	if (c == -1)
644			break;
645			switch (c) {
646			case 'l':
647			display_mode = DISPLAY_LINUX;
648			break;
649			case 'b':
650			display_mode = DISPLAY_BSD;
651			break;
652			case 'm':
653			display_mode = DISPLAY_MRTG;
654			break;
655			case 'u':
656			display_mode = DISPLAY_PLAIN;
657			break;
658			case 'n':
659			repeat_mode = REPEAT_NONE;
660			break;
661			case 's':
662			repeat_mode = REPEAT_FOREVER;
663			break;
664			case 'o':
665			repeat_mode = REPEAT_ONCE;
666			break;
667			case 't':
668			repeat_time = atoi(optarg);
669			break;
670			case 'p':
671			use_cpu_percent = 1;
672	ats	1.29	break;
673			case 'f':
674			float_scale_factor = atol(optarg);
675	tdb	1.1	break;
676			default:
677			usage();
678			}
679			}
680
681			if (display_mode == DISPLAY_MRTG) {
682			if ((argc - optind) != 2)
683			die("mrtg mode: must specify exactly two stats");
684	ats	1.5	if (repeat_mode == REPEAT_FOREVER)
685	tdb	1.1	die("mrtg mode: cannot repeat display");
686			}
687	ats	1.5
688			if (use_cpu_percent && repeat_mode == REPEAT_NONE)
689			die("CPU percentage usage display requires stat differences");
690	tdb	1.1
691	ats	1.8	if (repeat_mode == REPEAT_NONE)
692			use_diffs = 0;
693			else
694			use_diffs = 1;
695
696			select_interesting(argc - optind, &argv[optind]);
697
698	tdb	1.28	/* We don't care if sg_init fails, because we can just display
699	ats	1.12	the statistics that can be read as non-root. */
700	ats	1.24	sg_init();
701			if (sg_drop_privileges() != 0)
702	ats	1.15	die("Failed to drop setuid/setgid privileges");
703	ats	1.12
704	tdb	1.1	switch (repeat_mode) {
705			case REPEAT_NONE:
706	ats	1.8	get_stats();
707	tdb	1.1	print_stats(argc, argv);
708			break;
709			case REPEAT_ONCE:
710	ats	1.8	get_stats();
711	tdb	1.1	sleep(repeat_time);
712	ats	1.8	get_stats();
713	tdb	1.1	print_stats(argc, argv);
714			break;
715			case REPEAT_FOREVER:
716			while (1) {
717	ats	1.8	get_stats();
718	tdb	1.1	print_stats(argc, argv);
719			printf("\n");
720			sleep(repeat_time);
721			}
722			}
723
724			if (display_mode == DISPLAY_MRTG) {
725			printf("\n");
726			printf("statgrab\n");
727			}
728
729			return 0;
730			}
731