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sysstat/tests/12.0.1/inisar.c

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/*
* sar: report system activity
* (C) 1999-2018 by Sebastien GODARD (sysstat <at> orange.fr)
*
***************************************************************************
* 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 the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA *
***************************************************************************
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <errno.h>
#include <signal.h>
#include <sys/stat.h>
#include "iniversion.h"
#include "sa.h"
#ifdef USE_NLS
#include <locale.h>
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif
#ifdef USE_SCCSID
#define SCCSID "@(#)sysstat-" VERSION ": " __FILE__ " compiled " __DATE__ " " __TIME__
char *sccsid(void) { return (SCCSID); }
#endif
/* Interval and count parameters */
long interval = -1, count = 0;
/* TRUE if a header line must be printed */
int dis = TRUE;
/* TRUE if data read from file don't match current machine's endianness */
int endian_mismatch = FALSE;
/* TRUE if file's data come from a 64 bit machine */
int arch_64 = FALSE;
/* Number of decimal places */
int dplaces_nr = -1;
unsigned int flags = 0;
unsigned int dm_major; /* Device-mapper major number */
char timestamp[2][TIMESTAMP_LEN];
extern unsigned int rec_types_nr[];
unsigned long avg_count = 0;
/* File header */
struct file_header file_hdr;
/* Current record header */
struct record_header record_hdr[3];
/*
* Activity sequence.
* This array must always be entirely filled (even with trailing zeros).
*/
unsigned int id_seq[NR_ACT];
struct tm rectime;
/* Contain the date specified by -s and -e options */
struct tstamp tm_start, tm_end;
char *args[MAX_ARGV_NR];
extern struct activity *act[];
extern struct report_format sar_fmt;
struct sigaction int_act;
int sigint_caught = 0;
/*
***************************************************************************
* Print usage title message.
*
* IN:
* @progname Name of sysstat command
***************************************************************************
*/
void print_usage_title(FILE *fp, char *progname)
{
fprintf(fp, _("Usage: %s [ options ] [ <interval> [ <count> ] ]\n"),
progname);
}
/*
***************************************************************************
* Print usage and exit.
*
* IN:
* @progname Name of sysstat command
***************************************************************************
*/
void usage(char *progname)
{
print_usage_title(stderr, progname);
fprintf(stderr, _("Options are:\n"
"[ -A ] [ -B ] [ -b ] [ -C ] [ -D ] [ -d ] [ -F [ MOUNT ] ] [ -H ] [ -h ]\n"
"[ -p ] [ -q ] [ -r [ ALL ] ] [ -S ] [ -t ] [ -u [ ALL ] ] [ -V ]\n"
"[ -v ] [ -W ] [ -w ] [ -y ] [ -z ]\n"
"[ -I { <int_list> | SUM | ALL } ] [ -P { <cpu_list> | ALL } ]\n"
"[ -m { <keyword> [,...] | ALL } ] [ -n { <keyword> [,...] | ALL } ]\n"
"[ --dev=<dev_list> ] [ --fs=<fs_list> ] [ --iface=<iface_list> ]\n"
"[ --dec={ 0 | 1 | 2 } ] [ --help ] [ --human ] [ --sadc ]\n"
"[ -j { ID | LABEL | PATH | UUID | ... } ]\n"
"[ -f [ <filename> ] | -o [ <filename> ] | -[0-9]+ ]\n"
"[ -i <interval> ] [ -s [ <hh:mm[:ss]> ] ] [ -e [ <hh:mm[:ss]> ] ]\n"));
exit(1);
}
/*
***************************************************************************
* SIGINT signal handler.
*
* IN:
* @sig Signal number.
***************************************************************************
*/
void int_handler(int sig)
{
sigint_caught = 1;
printf("\n"); /* Skip "^C" displayed on screen */
}
/*
***************************************************************************
* Init some structures.
***************************************************************************
*/
void init_structures(void)
{
int i;
for (i = 0; i < 3; i++)
memset(&record_hdr[i], 0, RECORD_HEADER_SIZE);
}
/*
***************************************************************************
* Display an error message.
*
* IN:
* @error_code Code of error message to display.
***************************************************************************
*/
void print_read_error(int error_code)
{
switch (error_code) {
case END_OF_DATA_UNEXPECTED:
/* Happens when the data collector doesn't send enough data */
fprintf(stderr, _("End of data collecting unexpected\n"));
break;
default:
/* Strange data sent by sadc...! */
fprintf(stderr, _("Inconsistent input data\n"));
break;
}
exit(3);
}
/*
***************************************************************************
* Check that every selected activity actually belongs to the sequence list.
* If not, then the activity should be unselected since it will not be sent
* by sadc. An activity can be not sent if its number of items is zero.
*
* IN:
* @act_nr Size of sequence list.
***************************************************************************
*/
void reverse_check_act(unsigned int act_nr)
{
int i, j;
for (i = 0; i < NR_ACT; i++) {
if (IS_SELECTED(act[i]->options)) {
for (j = 0; j < act_nr; j++) {
if (id_seq[j] == act[i]->id)
break;
}
if (j == act_nr)
act[i]->options &= ~AO_SELECTED;
}
}
}
/*
***************************************************************************
* Determine if a stat header line has to be displayed.
*
* RETURNS:
* TRUE if a header line has to be displayed.
***************************************************************************
*/
int check_line_hdr(void)
{
int i, rc = FALSE;
/* Get number of options entered on the command line */
if (get_activity_nr(act, AO_SELECTED, COUNT_OUTPUTS) > 1)
return TRUE;
for (i = 0; i < NR_ACT; i++) {
if (IS_SELECTED(act[i]->options)) {
/* Special processing for activities using a bitmap */
if (act[i]->bitmap) {
if (count_bits(act[i]->bitmap->b_array,
BITMAP_SIZE(act[i]->bitmap->b_size)) > 1) {
rc = TRUE;
}
}
else if (act[i]->nr_ini > 1) {
rc = TRUE;
}
/* Stop now since we have only one selected activity */
break;
}
}
return rc;
}
/*
***************************************************************************
* Print statistics average.
*
* IN:
* @curr Index in array for current sample statistics.
* @read_from_file Set to TRUE if stats are read from a system activity
* data file.
* @act_id Activity that can be displayed, or ~0 for all.
* Remember that when reading stats from a file, only
* one activity can be displayed at a time.
***************************************************************************
*/
void write_stats_avg(int curr, int read_from_file, unsigned int act_id)
{
int i;
unsigned long long itv;
/* Interval value in 1/100th of a second */
itv = get_interval(record_hdr[2].uptime_cs, record_hdr[curr].uptime_cs);
strncpy(timestamp[curr], _("Average:"), TIMESTAMP_LEN);
timestamp[curr][TIMESTAMP_LEN - 1] = '\0';
memcpy(timestamp[!curr], timestamp[curr], TIMESTAMP_LEN);
/* Test stdout */
TEST_STDOUT(STDOUT_FILENO);
for (i = 0; i < NR_ACT; i++) {
if ((act_id != ALL_ACTIVITIES) && (act[i]->id != act_id))
continue;
if (IS_SELECTED(act[i]->options) && (act[i]->nr[curr] > 0)) {
/* Display current average activity statistics */
(*act[i]->f_print_avg)(act[i], 2, curr, itv);
}
}
if (read_from_file) {
/*
* Reset number of lines printed only if we read stats
* from a system activity file.
*/
avg_count = 0;
}
}
/*
***************************************************************************
* Print system statistics.
* This is called when we read stats either from a file or from sadc.
*
* IN:
* @curr Index in array for current sample statistics.
* @read_from_file Set to TRUE if stats are read from a system activity
* data file.
* @use_tm_start Set to TRUE if option -s has been used.
* @use_tm_end Set to TRUE if option -e has been used.
* @reset Set to TRUE if last_uptime variable should be
* reinitialized (used in next_slice() function).
* @act_id Activity that can be displayed or ~0 for all.
* Remember that when reading stats from a file, only
* one activity can be displayed at a time.
* @reset_cd TRUE if static cross_day variable should be reset
* (see below).
*
* OUT:
* @cnt Number of remaining lines to display.
*
* RETURNS:
* 1 if stats have been successfully displayed, and 0 otherwise.
***************************************************************************
*/
int write_stats(int curr, int read_from_file, long *cnt, int use_tm_start,
int use_tm_end, int reset, unsigned int act_id, int reset_cd)
{
int i;
unsigned long long itv;
static int cross_day = 0;
if (reset_cd) {
/*
* cross_day is a static variable that is set to 1 when the first
* record of stats from a new day is read from a unique data file
* (in the case where the file contains data from two consecutive
* days). When set to 1, every following records timestamp will
* have its hour value increased by 24.
* Yet when a new activity (being read from the file) is going to
* be displayed, we start reading the file from the beginning
* again, and so cross_day should be reset in this case.
*/
cross_day = 0;
}
/* Check time (1) */
if (read_from_file) {
if (!next_slice(record_hdr[2].uptime_cs, record_hdr[curr].uptime_cs,
reset, interval))
/* Not close enough to desired interval */
return 0;
}
if (!is_iso_time_fmt())
flags |= S_F_PREFD_TIME_OUTPUT;
/* Get then set previous timestamp */
if (sa_get_record_timestamp_struct(flags + S_F_LOCAL_TIME, &record_hdr[!curr],
&rectime, NULL))
return 0;
set_record_timestamp_string(flags, &record_hdr[!curr],
NULL, timestamp[!curr], TIMESTAMP_LEN, &rectime);
/* Get then set current timestamp */
if (sa_get_record_timestamp_struct(flags + S_F_LOCAL_TIME, &record_hdr[curr],
&rectime, NULL))
return 0;
set_record_timestamp_string(flags, &record_hdr[curr],
NULL, timestamp[curr], TIMESTAMP_LEN, &rectime);
/* Check if we are beginning a new day */
if (use_tm_start && record_hdr[!curr].ust_time &&
(record_hdr[curr].ust_time > record_hdr[!curr].ust_time) &&
(record_hdr[curr].hour < record_hdr[!curr].hour)) {
cross_day = 1;
}
if (cross_day) {
/*
* This is necessary if we want to properly handle something like:
* sar -s time_start -e time_end with
* time_start(day D) > time_end(day D+1)
*/
rectime.tm_hour += 24;
}
/* Check time (2) */
if (use_tm_start && (datecmp(&rectime, &tm_start) < 0))
/* it's too soon... */
return 0;
/* Get interval value in 1/100th of a second */
get_itv_value(&record_hdr[curr], &record_hdr[!curr], &itv);
/* Check time (3) */
if (use_tm_end && (datecmp(&rectime, &tm_end) > 0)) {
/* It's too late... */
*cnt = 0;
return 0;
}
avg_count++;
/* Test stdout */
TEST_STDOUT(STDOUT_FILENO);
for (i = 0; i < NR_ACT; i++) {
if ((act_id != ALL_ACTIVITIES) && (act[i]->id != act_id))
continue;
if (IS_SELECTED(act[i]->options) && (act[i]->nr[curr] > 0)) {
/* Display current activity statistics */
(*act[i]->f_print)(act[i], !curr, curr, itv);
}
}
return 1;
}
/*
***************************************************************************
* Display stats since system startup.
*
* IN:
* @curr Index in array for current sample statistics.
***************************************************************************
*/
void write_stats_startup(int curr)
{
int i;
/* Set to 0 previous structures corresponding to boot time */
memset(&record_hdr[!curr], 0, RECORD_HEADER_SIZE);
record_hdr[!curr].record_type = R_STATS;
record_hdr[!curr].hour = record_hdr[curr].hour;
record_hdr[!curr].minute = record_hdr[curr].minute;
record_hdr[!curr].second = record_hdr[curr].second;
record_hdr[!curr].ust_time = record_hdr[curr].ust_time;
for (i = 0; i < NR_ACT; i++) {
if (IS_SELECTED(act[i]->options) && (act[i]->nr[curr] > 0)) {
/*
* Using nr[curr] and not nr[!curr] below because we initialize
* reference structures for each structure that has been
* currently read in memory.
* No problem with buffers allocation since they all have the
* same size.
*/
memset(act[i]->buf[!curr], 0,
(size_t) act[i]->msize * (size_t) act[i]->nr[curr] * (size_t) act[i]->nr2);
}
}
flags |= S_F_SINCE_BOOT;
dis = TRUE;
write_stats(curr, USE_SADC, &count, NO_TM_START, NO_TM_END, NO_RESET,
ALL_ACTIVITIES, TRUE);
exit(0);
}
/*
***************************************************************************
* Display a restart message (contents of a R_RESTART record).
*
* IN:
* @tab Number of tabulations (unused here).
* @action Action expected from current function (unused here).
* @cur_date Date string of current restart message (unused here).
* @cur_time Time string of current restart message.
* @utc True if @cur_time is expressed in UTC (unused here).
* @file_hdr System activity file standard header (unused here).
***************************************************************************
*/
__printf_funct_t print_sar_restart(int *tab, int action, char *cur_date, char *cur_time,
int utc, struct file_header *file_hdr)
{
char restart[64];
printf("\n%-11s", cur_time);
sprintf(restart, " LINUX RESTART\t(%d CPU)\n",
file_hdr->sa_cpu_nr > 1 ? file_hdr->sa_cpu_nr - 1 : 1);
cprintf_s(IS_RESTART, "%s", restart);
}
/*
***************************************************************************
* Display a comment (contents of R_COMMENT record).
*
* IN:
* @tab Number of tabulations (unused here).
* @action Action expected from current function (unused here).
* @cur_date Date string of current comment (unused here).
* @cur_time Time string of current comment.
* @utc True if @cur_time is expressed in UTC (unused here).
* @comment Comment to display.
* @file_hdr System activity file standard header (unused here).
***************************************************************************
*/
__print_funct_t print_sar_comment(int *tab, int action, char *cur_date, char *cur_time, int utc,
char *comment, struct file_header *file_hdr)
{
printf("%-11s", cur_time);
cprintf_s(IS_COMMENT, " COM %s\n", comment);
}
/*
***************************************************************************
* Read stats for current activity from file and display them.
*
* IN:
* @ifd Input file descriptor.
* @fpos Position in file where reading must start.
* @curr Index in array for current sample statistics.
* @rows Number of rows of screen.
* @act_id Activity to display.
* @file_actlst List of activities in file.
* @file Name of file being read.
* @file_magic file_magic structure filled with file magic header data.
* @rec_hdr_tmp Temporary buffer where current record header will be saved.
* @endian_mismatch
* TRUE if file's data don't match current machine's endianness.
* @arch_64 TRUE if file's data come from a 64 bit machine.
*
* OUT:
* @curr Index in array for next sample statistics.
* @cnt Number of remaining lines of stats to write.
* @eosaf Set to TRUE if EOF (end of file) has been reached.
* @reset Set to TRUE if last_uptime variable should be reinitialized
* (used in next_slice() function).
***************************************************************************
*/
void handle_curr_act_stats(int ifd, off_t fpos, int *curr, long *cnt, int *eosaf,
int rows, unsigned int act_id, int *reset,
struct file_activity *file_actlst, char *file,
struct file_magic *file_magic, void *rec_hdr_tmp,
int endian_mismatch, int arch_64)
{
int p, reset_cd;
unsigned long lines = 0;
unsigned char rtype;
int davg = 0, next, inc = 0;
if (lseek(ifd, fpos, SEEK_SET) < fpos) {
perror("lseek");
exit(2);
}
/*
* Restore the first stats collected.
* Used to compute the rate displayed on the first line.
*/
copy_structures(act, id_seq, record_hdr, !*curr, 2);
*cnt = count;
/* Assess number of lines printed when a bitmap is used */
p = get_activity_position(act, act_id, EXIT_IF_NOT_FOUND);
if (act[p]->bitmap) {
inc = count_bits(act[p]->bitmap->b_array,
BITMAP_SIZE(act[p]->bitmap->b_size));
}
reset_cd = 1;
do {
/*
* Display <count> lines of stats.
* Start with reading current sample's record header.
*/
*eosaf = read_record_hdr(ifd, rec_hdr_tmp, &record_hdr[*curr],
&file_hdr, arch_64, endian_mismatch);
rtype = record_hdr[*curr].record_type;
if (!*eosaf && (rtype != R_RESTART) && (rtype != R_COMMENT)) {
/* Read the extra fields since it's not a special record */
read_file_stat_bunch(act, *curr, ifd, file_hdr.sa_act_nr, file_actlst,
endian_mismatch, arch_64, file, file_magic);
}
if ((lines >= rows) || !lines) {
lines = 0;
dis = 1;
}
else
dis = 0;
if (!*eosaf && (rtype != R_RESTART)) {
if (rtype == R_COMMENT) {
/* Display comment */
next = print_special_record(&record_hdr[*curr], flags + S_F_LOCAL_TIME,
&tm_start, &tm_end, R_COMMENT, ifd,
&rectime, NULL, file, 0,
file_magic, &file_hdr, act, &sar_fmt,
endian_mismatch, arch_64);
if (next) {
/* A line of comment was actually displayed */
lines++;
}
continue;
}
/* next is set to 1 when we were close enough to desired interval */
next = write_stats(*curr, USE_SA_FILE, cnt, tm_start.use, tm_end.use,
*reset, act_id, reset_cd);
reset_cd = 0;
if (next && (*cnt > 0)) {
(*cnt)--;
}
if (next) {
davg++;
*curr ^= 1;
if (inc) {
lines += inc;
}
else {
lines += act[p]->nr[*curr];
}
}
*reset = FALSE;
}
}
while (*cnt && !*eosaf && (rtype != R_RESTART));
if (davg) {
write_stats_avg(!*curr, USE_SA_FILE, act_id);
}
*reset = TRUE;
}
/*
***************************************************************************
* Read statistics from a system activity data file.
*
* IN:
* @from_file Input file name.
***************************************************************************
*/
void read_stats_from_file(char from_file[])
{
struct file_magic file_magic;
struct file_activity *file_actlst = NULL;
char rec_hdr_tmp[MAX_RECORD_HEADER_SIZE];
int curr = 1, i, p;
int ifd, rtype;
int rows, eosaf = TRUE, reset = FALSE;
long cnt = 1;
off_t fpos;
/* Get window size */
rows = get_win_height();
/* Read file headers and activity list */
check_file_actlst(&ifd, from_file, act, &file_magic, &file_hdr,
&file_actlst, id_seq, FALSE, &endian_mismatch, &arch_64);
/* Perform required allocations */
allocate_structures(act);
/* Print report header */
print_report_hdr(flags, &rectime, &file_hdr);
/* Read system statistics from file */
do {
/*
* If this record is a special (RESTART or COMMENT) one, print it and
* (try to) get another one.
*/
do {
if (read_record_hdr(ifd, rec_hdr_tmp, &record_hdr[0], &file_hdr,
arch_64, endian_mismatch)) {
/* End of sa data file */
return;
}
rtype = record_hdr[0].record_type;
if ((rtype == R_RESTART) || (rtype == R_COMMENT)) {
print_special_record(&record_hdr[0], flags + S_F_LOCAL_TIME,
&tm_start, &tm_end, rtype, ifd,
&rectime, NULL, from_file, 0, &file_magic,
&file_hdr, act, &sar_fmt, endian_mismatch, arch_64);
}
else {
/*
* OK: Previous record was not a special one.
* So read now the extra fields.
*/
read_file_stat_bunch(act, 0, ifd, file_hdr.sa_act_nr,
file_actlst, endian_mismatch, arch_64,
from_file, &file_magic);
if (sa_get_record_timestamp_struct(flags + S_F_LOCAL_TIME,
&record_hdr[0],
&rectime, NULL))
/*
* An error was detected.
* The timestamp hasn't been updated.
*/
continue;
}
}
while ((rtype == R_RESTART) || (rtype == R_COMMENT) ||
(tm_start.use && (datecmp(&rectime, &tm_start) < 0)) ||
(tm_end.use && (datecmp(&rectime, &tm_end) >=0)));
/* Save the first stats collected. Will be used to compute the average */
copy_structures(act, id_seq, record_hdr, 2, 0);
reset = TRUE; /* Set flag to reset last_uptime variable */
/* Save current file position */
if ((fpos = lseek(ifd, 0, SEEK_CUR)) < 0) {
perror("lseek");
exit(2);
}
/*
* Read and write stats located between two possible Linux restarts.
* Activities that should be displayed are saved in id_seq[] array.
* Since we are reading from a file, we print all the stats for an
* activity before displaying the next activity.
* id_seq[] has been created in check_file_actlst(), retaining only
* activities known by current sysstat version.
*/
for (i = 0; i < NR_ACT; i++) {
if (!id_seq[i])
continue;
p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND);
if (!IS_SELECTED(act[p]->options))
continue;
if (!HAS_MULTIPLE_OUTPUTS(act[p]->options)) {
handle_curr_act_stats(ifd, fpos, &curr, &cnt, &eosaf, rows,
act[p]->id, &reset, file_actlst,
from_file, &file_magic, rec_hdr_tmp,
endian_mismatch, arch_64);
}
else {
unsigned int optf, msk;
optf = act[p]->opt_flags;
for (msk = 1; msk < 0x100; msk <<= 1) {
if ((act[p]->opt_flags & 0xff) & msk) {
act[p]->opt_flags &= (0xffffff00 + msk);
handle_curr_act_stats(ifd, fpos, &curr, &cnt, &eosaf,
rows, act[p]->id, &reset, file_actlst,
from_file, &file_magic, rec_hdr_tmp,
endian_mismatch, arch_64);
act[p]->opt_flags = optf;
}
}
}
}
if (!cnt) {
/* Go to next Linux restart, if possible */
do {
/* Read next record header */
eosaf = read_record_hdr(ifd, rec_hdr_tmp, &record_hdr[curr],
&file_hdr, arch_64, endian_mismatch);
rtype = record_hdr[curr].record_type;
if (!eosaf && (rtype != R_RESTART) && (rtype != R_COMMENT)) {
read_file_stat_bunch(act, curr, ifd, file_hdr.sa_act_nr,
file_actlst, endian_mismatch, arch_64,
from_file, &file_magic);
}
else if (!eosaf && (rtype == R_COMMENT)) {
/* This was a COMMENT record: print it */
print_special_record(&record_hdr[curr], flags + S_F_LOCAL_TIME,
&tm_start, &tm_end, R_COMMENT, ifd,
&rectime, NULL, from_file, 0,
&file_magic, &file_hdr, act, &sar_fmt,
endian_mismatch, arch_64);
}
}
while (!eosaf && (rtype != R_RESTART));
}
/* The last record we read was a RESTART one: Print it */
if (!eosaf && (record_hdr[curr].record_type == R_RESTART)) {
print_special_record(&record_hdr[curr], flags + S_F_LOCAL_TIME,
&tm_start, &tm_end, R_RESTART, ifd,
&rectime, NULL, from_file, 0,
&file_magic, &file_hdr, act, &sar_fmt,
endian_mismatch, arch_64);
}
}
while (!eosaf);
close(ifd);
free(file_actlst);
}
/*
***************************************************************************
* Main entry to the sar program.
***************************************************************************
*/
int main(int argc, char **argv)
{
int rc, opt = 1, p, q;
int day_offset = 0;
char from_file[MAX_FILE_LEN], to_file[MAX_FILE_LEN];
/* Compute page shift in kB */
get_kb_shift();
from_file[0] = to_file[0] = '\0';
#ifdef USE_NLS
/* Init National Language Support */
init_nls();
#endif
/* Init color strings */
init_colors();
tm_start.use = tm_end.use = FALSE;
/* Allocate and init activity bitmaps */
allocate_bitmaps(act);
init_structures();
/* Process options */
while (opt < argc) {
if (!strncmp(argv[opt], "--dev=", 6)) {
/* Parse devices entered on the command line */
p = get_activity_position(act, A_DISK, EXIT_IF_NOT_FOUND);
parse_sa_devices(argv[opt], act[p], MAX_DEV_LEN, &opt, 6);
}
else if (!strncmp(argv[opt], "--fs=", 5)) {
/* Parse devices entered on the command line */
p = get_activity_position(act, A_FS, EXIT_IF_NOT_FOUND);
parse_sa_devices(argv[opt], act[p], MAX_FS_LEN, &opt, 5);
}
else if (!strncmp(argv[opt], "--iface=", 8)) {
/* Parse devices entered on the command line */
p = get_activity_position(act, A_NET_DEV, EXIT_IF_NOT_FOUND);
parse_sa_devices(argv[opt], act[p], MAX_IFACE_LEN, &opt, 8);
q = get_activity_position(act, A_NET_EDEV, EXIT_IF_NOT_FOUND);
act[q]->item_list = act[p]->item_list;
act[q]->item_list_sz = act[p]->item_list_sz;
act[q]->options |= AO_LIST_ON_CMDLINE;
}
else if (!strcmp(argv[opt], "--human")) {
/* Display sizes in a human readable format */
flags |= S_F_UNIT;
opt++;
}
else if (!strncmp(argv[opt], "--dec=", 6) && (strlen(argv[opt]) == 7)) {
/* Get number of decimal places */
dplaces_nr = atoi(argv[opt] + 6);
if ((dplaces_nr < 0) || (dplaces_nr > 2)) {
usage(argv[0]);
}
opt++;
}
else if (!strcmp(argv[opt], "-I")) {
/* Parse -I option */
if (parse_sar_I_opt(argv, &opt, act)) {
usage(argv[0]);
}
}
else if (!strcmp(argv[opt], "-D")) {
/* Option to tell sar to write to saYYYYMMDD data files */
flags |= S_F_SA_YYYYMMDD;
opt++;
}
else if (!strcmp(argv[opt], "-P")) {
/* Parse -P option */
if (parse_sa_P_opt(argv, &opt, &flags, act)) {
usage(argv[0]);
}
}
else if (!strcmp(argv[opt], "-o")) {
if (to_file[0]) {
/* Output file already specified */
usage(argv[0]);
}
/* Save stats to a file */
if ((argv[++opt]) && strncmp(argv[opt], "-", 1) &&
(strspn(argv[opt], DIGITS) != strlen(argv[opt]))) {
strncpy(to_file, argv[opt++], MAX_FILE_LEN);
to_file[MAX_FILE_LEN - 1] = '\0';
}
else {
strcpy(to_file, "-");
}
}
else if (!strcmp(argv[opt], "-f")) {
if (from_file[0] || day_offset) {
/* Input file already specified */
usage(argv[0]);
}
/* Read stats from a file */
if ((argv[++opt]) && strncmp(argv[opt], "-", 1) &&
(strspn(argv[opt], DIGITS) != strlen(argv[opt]))) {
strncpy(from_file, argv[opt++], MAX_FILE_LEN);
from_file[MAX_FILE_LEN - 1] = '\0';
/* Check if this is an alternate directory for sa files */
check_alt_sa_dir(from_file, day_offset, -1);
}
else {
set_default_file(from_file, day_offset, -1);
}
}
else if (!strcmp(argv[opt], "-s")) {
/* Get time start */
if (parse_timestamp(argv, &opt, &tm_start, DEF_TMSTART)) {
usage(argv[0]);
}
}
else if (!strcmp(argv[opt], "-e")) {
/* Get time end */
if (parse_timestamp(argv, &opt, &tm_end, DEF_TMEND)) {
usage(argv[0]);
}
}
else if (!strcmp(argv[opt], "-i")) {
if (!argv[++opt] || (strspn(argv[opt], DIGITS) != strlen(argv[opt]))) {
usage(argv[0]);
}
interval = atol(argv[opt++]);
if (interval < 1) {
usage(argv[0]);
}
flags |= S_F_INTERVAL_SET;
}
else if (!strcmp(argv[opt], "-m")) {
if (!argv[++opt]) {
usage(argv[0]);
}
/* Parse option -m */
if (parse_sar_m_opt(argv, &opt, act)) {
usage(argv[0]);
}
}
else if (!strcmp(argv[opt], "-n")) {
if (!argv[++opt]) {
usage(argv[0]);
}
/* Parse option -n */
if (parse_sar_n_opt(argv, &opt, act)) {
usage(argv[0]);
}
}
else if ((strlen(argv[opt]) > 1) &&
(strlen(argv[opt]) < 4) &&
!strncmp(argv[opt], "-", 1) &&
(strspn(argv[opt] + 1, DIGITS) == (strlen(argv[opt]) - 1))) {
if (from_file[0] || day_offset) {
/* Input file already specified */
usage(argv[0]);
}
day_offset = atoi(argv[opt++] + 1);
}
else if (!strncmp(argv[opt], "-", 1)) {
/* Other options not previously tested */
if ((rc = parse_sar_opt(argv, &opt, act, &flags, C_SAR)) != 0) {
if (rc == 1) {
usage(argv[0]);
}
exit(1);
}
opt++;
}
else if (interval < 0) {
/* Get interval */
if (strspn(argv[opt], DIGITS) != strlen(argv[opt])) {
usage(argv[0]);
}
interval = atol(argv[opt++]);
if (interval < 0) {
usage(argv[0]);
}
}
else {
/* Get count value */
if ((strspn(argv[opt], DIGITS) != strlen(argv[opt])) ||
!interval) {
usage(argv[0]);
}
if (count) {
/* Count parameter already set */
usage(argv[0]);
}
count = atol(argv[opt++]);
if (count < 1) {
usage(argv[0]);
}
}
}
/* 'sar' is equivalent to 'sar -f' */
if ((argc == 1) ||
((interval < 0) && !from_file[0] && !to_file[0])) {
set_default_file(from_file, day_offset, -1);
}
if (tm_start.use && tm_end.use && (tm_end.tm_hour < tm_start.tm_hour)) {
tm_end.tm_hour += 24;
}
/*
* Check option dependencies.
*/
/* You read from a file OR you write to it... */
if (from_file[0] && to_file[0]) {
fprintf(stderr, _("-f and -o options are mutually exclusive\n"));
exit(1);
}
/* Use time start or option -i only when reading stats from a file */
if ((tm_start.use || INTERVAL_SET(flags)) && !from_file[0]) {
fprintf(stderr,
_("Not reading from a system activity file (use -f option)\n"));
exit(1);
}
/* Don't print stats since boot time if -o or -f options are used */
if (!interval && (from_file[0] || to_file[0])) {
usage(argv[0]);
}
/* Cannot enter a day shift with -o option */
if (to_file[0] && day_offset) {
usage(argv[0]);
}
if (USE_PRETTY_OPTION(flags)) {
dm_major = get_devmap_major();
}
if (!count) {
/*
* count parameter not set: Display all the contents of the file
* or generate a report continuously.
*/
count = -1;
}
/* Default is CPU activity... */
select_default_activity(act);
/* Reading stats from file: */
if (from_file[0]) {
if (interval < 0) {
interval = 1;
}
/* Read stats from file */
read_stats_from_file(from_file);
/* Free structures and activity bitmaps */
free_bitmaps(act);
free_structures(act);
return 0;
}
return 0;
}
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