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This commit is contained in:
Babak Farrokhi
2018-11-17 10:58:50 +03:30
parent 41ff40a1de
commit fc9c61f0db
5 changed files with 31 additions and 9 deletions
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24
helpers/cpustat/Makefile Normal file
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CC?=
PREFIX?=/usr/local
CPPFLAGS=-I$(PREFIX)/include
CFLAGS=-Wall -Wextra -g -O2 -pipe -funroll-loops -ffast-math -fno-strict-aliasing
CFLAGS+=$(CPPFLAGS)
LDFLAGS=-L$(PREFIX)/lib
LDLIBS=-lm
RM?=rm -f
CPUSTAT = cpustat
OBJ = cpustat.o
all: $(CPUSTAT)
$(CPUSTAT): $(OBJ)
$(CC) $(LDFLAGS) $(OBJ) $(LDLIBS) -o $(CPUSTAT)
install: all
install -s -C $(CPUSTAT) $(PREFIX)/bin
clean:
$(RM) *.o *.a a.out core temp.* $(CPUSTAT)
$(RM) -r *.dSYM

89
helpers/cpustat/cpustat.c Normal file
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/*-
* Copyright (c) 2018, Babak Farrokhi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <devstat.h>
#include <err.h>
#include <kvm.h>
#include <math.h>
#include <stdio.h>
#include <stdbool.h>
#include <strings.h>
#include <unistd.h>
#include <sys/sysctl.h>
#include <sys/types.h>
static struct statinfo cur, last;
kvm_t *kd = NULL;
static int readvar(kvm_t *kd, const char *name, int nlid, void *ptr,
size_t len) {
size_t nlen = len;
if (sysctlbyname(name, ptr, &nlen, NULL, 0) == -1) {
warn("sysctl(%s...) failed", name);
return (1);
}
if (nlen != len) {
warnx("sysctl(%s...): expected %lu, got %lu", name, (unsigned long)len,
(unsigned long)nlen);
return (1);
}
return (0);
}
static void cpustats(bool print) {
int state;
long tmp;
double cptime = 0.0;
char *names[] = {"user", "nice", "system", "interrupt", "idle"};
readvar(kd, "kern.cp_time", 0, &cur.cp_time, sizeof(cur.cp_time));
for (state = 0; state < CPUSTATES; state++) {
tmp = cur.cp_time[state];
cur.cp_time[state] -= last.cp_time[state];
last.cp_time[state] = tmp;
}
for (state = 0; state < CPUSTATES; ++state)
cptime += cur.cp_time[state];
if (print) {
for (state = 0; state < CPUSTATES; ++state)
printf("%s.value %.0f\n", names[state],
rint(100. * cur.cp_time[state] / (cptime ? cptime : 1)));
}
}
int main(void)
{
bzero(cur.cp_time, sizeof(cur.cp_time));
bzero(last.cp_time, sizeof(last.cp_time));
cpustats(false);
sleep(1);
cpustats(true);
}

24
helpers/ifcounters/Makefile Normal file
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CC?=
PREFIX?=/usr/local
CPPFLAGS=-I$(PREFIX)/include
CFLAGS=-Wall -Wextra -g -O2 -pipe -funroll-loops -ffast-math -fno-strict-aliasing
CFLAGS+=$(CPPFLAGS)
LDFLAGS=-L$(PREFIX)/lib
LDLIBS=-lm
RM?=rm -f
IFCOUNTERS = ifcounters
OBJ = ifcounters.o
all: $(IFCOUNTERS)
$(IFCOUNTERS): $(OBJ)
$(CC) $(LDFLAGS) $(OBJ) $(LDLIBS) -o $(IFCOUNTERS)
install: all
install -s -C $(IFCOUNTERS) $(PREFIX)/bin
clean:
$(RM) *.o *.a a.out core *.core temp.* $(IFCOUNTERS)
$(RM) -r *.dSYM

149
helpers/ifcounters/ifcounters.c Normal file
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/*-
* Copyright (c) 2018, Babak Farrokhi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s)
#define PACKAGE_NAME "ifcounters"
#define PACKAGE_VERSION "0.1"
void show_help()
{
printf(
"Usage: ifcounters [-v] [-h] [-b|-p|-e|-m|-q] interface\n" \
"\n" \
"Options:\n" \
" -b Input/Output Bytes counter\n" \
" -p Input/Output Unicast Packets counter\n" \
" -e Input/Output Errors counter\n" \
" -m Input/Output Multicast Packets counter\n" \
" -q Input/Output Queue Drops counter\n" \
" -v Display version information\n" \
" -h Display this help message\n"
);
}
void show_version()
{
printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
printf("Copyright (c) 2018 by Babak Farrokhi <babak@farrokhi.net>\n");
}
int main(int argc, char **argv)
{
struct ifaddrs *ifap, *ifa;
char *ifname, *param;
int flag, c;
flag = 0;
if (argc < 2) {
show_help();
exit(0);
}
while ((c = getopt(argc, argv, "hvb:p:e:m:q:")) != -1) {
switch (c) {
case 'h':
show_help();
exit(0);
case 'v':
show_version();
exit(0);
case 'b':
case 'p':
case 'e':
case 'm':
case 'q':
flag = c;
param = strdup(optarg);
break;
case '?':
default:
show_help();
printf("\n");
show_version();
exit(1);
}
}
argc -= optind;
argv += optind;
if (flag == 0) {
show_help();
exit(1);
}
if (getifaddrs(&ifap) != 0) {
fprintf(stderr, "error\n");
}
else {
for (ifa = ifap; ifa; ifa= ifa->ifa_next) {
ifname = ifa->ifa_name;
if (strcmp(ifa->ifa_name, param) == 0) {
switch (flag) {
case 'b':
printf("rbytes.value %lu\nobytes.value %lu\n", IFA_STAT(ibytes), IFA_STAT(obytes));
break;
case 'p':
printf("rpackets.value %lu\nopackets.value %lu\n", IFA_STAT(ipackets), IFA_STAT(opackets));
break;
case 'e':
printf("rerrors.value %lu\noerrors.value %lu\n", IFA_STAT(ierrors), IFA_STAT(oerrors));
break;
case 'm':
printf("rmcasts.value %lu\nomcasts.value %lu\n", IFA_STAT(imcasts), IFA_STAT(omcasts));
break;
case 'q':
printf("rqdrops.value %lu\noqdrops.value %lu\n", IFA_STAT(iqdrops), IFA_STAT(oqdrops));
break;
default:
printf("invalid flag");
exit(1);
}
exit(0);
}
while (ifa->ifa_next != NULL &&
(strcmp(ifa->ifa_next->ifa_name, ifname) == 0)) {
ifa = ifa->ifa_next;
}
}
printf("Unknown interface: %s\n", param);
exit(1);
}
}