654 lines
16 KiB
C
654 lines
16 KiB
C
/*
|
|
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
|
|
* This file is part of SIGAR.
|
|
*
|
|
* SIGAR is free software; you can redistribute it and/or modify
|
|
* it under the terms version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation. 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.
|
|
*/
|
|
|
|
/* Utility functions to provide string formatting of SIGAR data */
|
|
|
|
#include "sigar.h"
|
|
#include "sigar_private.h"
|
|
#include "sigar_util.h"
|
|
#include "sigar_os.h"
|
|
#include "sigar_format.h"
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
|
|
#ifndef WIN32
|
|
#include <arpa/inet.h>
|
|
#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(_AIX)
|
|
#include <sys/socket.h>
|
|
#endif
|
|
#include <pwd.h>
|
|
#include <grp.h>
|
|
|
|
/* sysconf(_SC_GET{PW,GR}_R_SIZE_MAX) */
|
|
#define R_SIZE_MAX 1024
|
|
|
|
int sigar_user_name_get(sigar_t *sigar, int uid, char *buf, int buflen)
|
|
{
|
|
struct passwd *pw = NULL;
|
|
/* XXX cache lookup */
|
|
|
|
# ifdef HAVE_GETPWUID_R
|
|
struct passwd pwbuf;
|
|
char buffer[R_SIZE_MAX];
|
|
|
|
if (getpwuid_r(uid, &pwbuf, buffer, sizeof(buffer), &pw) != 0) {
|
|
return errno;
|
|
}
|
|
if (!pw) {
|
|
return ENOENT;
|
|
}
|
|
# else
|
|
if ((pw = getpwuid(uid)) == NULL) {
|
|
return errno;
|
|
}
|
|
# endif
|
|
|
|
strncpy(buf, pw->pw_name, buflen);
|
|
buf[buflen-1] = '\0';
|
|
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
int sigar_group_name_get(sigar_t *sigar, int gid, char *buf, int buflen)
|
|
{
|
|
struct group *gr;
|
|
/* XXX cache lookup */
|
|
|
|
# ifdef HAVE_GETGRGID_R
|
|
struct group grbuf;
|
|
char buffer[R_SIZE_MAX];
|
|
|
|
if (getgrgid_r(gid, &grbuf, buffer, sizeof(buffer), &gr) != 0) {
|
|
return errno;
|
|
}
|
|
# else
|
|
if ((gr = getgrgid(gid)) == NULL) {
|
|
return errno;
|
|
}
|
|
# endif
|
|
|
|
if (gr && gr->gr_name) {
|
|
strncpy(buf, gr->gr_name, buflen);
|
|
}
|
|
else {
|
|
/* seen on linux.. apache httpd.conf has:
|
|
* Group #-1
|
|
* results in uid == -1 and gr == NULL.
|
|
* wtf getgrgid_r doesnt fail instead?
|
|
*/
|
|
sprintf(buf, "%d", gid);
|
|
}
|
|
buf[buflen-1] = '\0';
|
|
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
int sigar_user_id_get(sigar_t *sigar, const char *name, int *uid)
|
|
{
|
|
/* XXX cache lookup */
|
|
struct passwd *pw;
|
|
|
|
# ifdef HAVE_GETPWNAM_R
|
|
struct passwd pwbuf;
|
|
char buf[R_SIZE_MAX];
|
|
|
|
if (getpwnam_r(name, &pwbuf, buf, sizeof(buf), &pw) != 0) {
|
|
return errno;
|
|
}
|
|
# else
|
|
if (!(pw = getpwnam(name))) {
|
|
return errno;
|
|
}
|
|
# endif
|
|
|
|
*uid = (int)pw->pw_uid;
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
#endif /* WIN32 */
|
|
|
|
static char *sigar_error_string(int err)
|
|
{
|
|
switch (err) {
|
|
case SIGAR_ENOTIMPL:
|
|
return "This function has not been implemented on this platform";
|
|
default:
|
|
return "Error string not specified yet";
|
|
}
|
|
}
|
|
|
|
SIGAR_DECLARE(char *) sigar_strerror(sigar_t *sigar, int err)
|
|
{
|
|
char *buf;
|
|
|
|
if (err < 0) {
|
|
return sigar->errbuf;
|
|
}
|
|
|
|
if (err > SIGAR_OS_START_ERROR) {
|
|
if ((buf = sigar_os_error_string(sigar, err)) != NULL) {
|
|
return buf;
|
|
}
|
|
return "Unknown OS Error"; /* should never happen */
|
|
}
|
|
|
|
if (err > SIGAR_START_ERROR) {
|
|
return sigar_error_string(err);
|
|
}
|
|
|
|
return sigar_strerror_get(err, sigar->errbuf, sizeof(sigar->errbuf));
|
|
}
|
|
|
|
char *sigar_strerror_get(int err, char *errbuf, int buflen)
|
|
{
|
|
char *buf = NULL;
|
|
#ifdef WIN32
|
|
DWORD len;
|
|
|
|
len = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
|
|
FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL,
|
|
err,
|
|
0, /* default language */
|
|
(LPTSTR)errbuf,
|
|
(DWORD)buflen,
|
|
NULL);
|
|
#else
|
|
|
|
#if defined(HAVE_STRERROR_R) && defined(HAVE_STRERROR_R_GLIBC)
|
|
/*
|
|
* strerror_r man page says:
|
|
* "The GNU version may, but need not, use the user supplied buffer"
|
|
*/
|
|
buf = strerror_r(err, errbuf, buflen);
|
|
#elif defined(HAVE_STRERROR_R)
|
|
if (strerror_r(err, errbuf, buflen) < 0) {
|
|
buf = "Unknown Error";
|
|
}
|
|
#else
|
|
/* strerror() is thread safe on solaris and hpux */
|
|
buf = strerror(err);
|
|
#endif
|
|
|
|
if (buf != NULL) {
|
|
SIGAR_STRNCPY(errbuf, buf, buflen);
|
|
}
|
|
|
|
#endif
|
|
return errbuf;
|
|
}
|
|
|
|
void sigar_strerror_set(sigar_t *sigar, char *msg)
|
|
{
|
|
SIGAR_SSTRCPY(sigar->errbuf, msg);
|
|
}
|
|
|
|
#ifdef WIN32
|
|
#define vsnprintf _vsnprintf
|
|
#endif
|
|
|
|
void sigar_strerror_printf(sigar_t *sigar, const char *format, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, format);
|
|
vsnprintf(sigar->errbuf, sizeof(sigar->errbuf), format, args);
|
|
va_end(args);
|
|
}
|
|
|
|
/* copy apr_strfsize */
|
|
SIGAR_DECLARE(char *) sigar_format_size(sigar_uint64_t size, char *buf)
|
|
{
|
|
const char ord[] = "KMGTPE";
|
|
const char *o = ord;
|
|
int remain;
|
|
|
|
if (size == SIGAR_FIELD_NOTIMPL) {
|
|
buf[0] = '-';
|
|
buf[1] = '\0';
|
|
return buf;
|
|
}
|
|
|
|
if (size < 973) {
|
|
sprintf(buf, "%3d ", (int) size);
|
|
return buf;
|
|
}
|
|
|
|
do {
|
|
remain = (int)(size & 1023);
|
|
size >>= 10;
|
|
|
|
if (size >= 973) {
|
|
++o;
|
|
continue;
|
|
}
|
|
|
|
if (size < 9 || (size == 9 && remain < 973)) {
|
|
if ((remain = ((remain * 5) + 256) / 512) >= 10) {
|
|
++size;
|
|
remain = 0;
|
|
}
|
|
sprintf(buf, "%d.%d%c", (int) size, remain, *o);
|
|
return buf;
|
|
}
|
|
|
|
if (remain >= 512) {
|
|
++size;
|
|
}
|
|
|
|
sprintf(buf, "%3d%c", (int) size, *o);
|
|
|
|
return buf;
|
|
} while (1);
|
|
}
|
|
|
|
|
|
SIGAR_DECLARE(int) sigar_uptime_string(sigar_t *sigar,
|
|
sigar_uptime_t *uptime,
|
|
char *buffer,
|
|
int buflen)
|
|
{
|
|
char *ptr = buffer;
|
|
int time = (int)uptime->uptime;
|
|
int minutes, hours, days, offset = 0;
|
|
|
|
/* XXX: get rid of sprintf and/or check for overflow */
|
|
days = time / (60*60*24);
|
|
|
|
if (days) {
|
|
offset += sprintf(ptr + offset, "%d day%s, ",
|
|
days, (days > 1) ? "s" : "");
|
|
}
|
|
|
|
minutes = time / 60;
|
|
hours = minutes / 60;
|
|
hours = hours % 24;
|
|
minutes = minutes % 60;
|
|
|
|
if (hours) {
|
|
offset += sprintf(ptr + offset, "%2d:%02d",
|
|
hours, minutes);
|
|
}
|
|
else {
|
|
offset += sprintf(ptr + offset, "%d min", minutes);
|
|
}
|
|
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
|
|
#ifndef WIN32
|
|
#include <netinet/in.h>
|
|
#endif
|
|
|
|
/* threadsafe alternative to inet_ntoa (inet_ntop4 from apr) */
|
|
int sigar_inet_ntoa(sigar_t *sigar,
|
|
sigar_uint32_t address,
|
|
char *addr_str)
|
|
{
|
|
char *next=addr_str;
|
|
int n=0;
|
|
const unsigned char *src =
|
|
(const unsigned char *)&address;
|
|
|
|
do {
|
|
unsigned char u = *src++;
|
|
if (u > 99) {
|
|
*next++ = '0' + u/100;
|
|
u %= 100;
|
|
*next++ = '0' + u/10;
|
|
u %= 10;
|
|
}
|
|
else if (u > 9) {
|
|
*next++ = '0' + u/10;
|
|
u %= 10;
|
|
}
|
|
*next++ = '0' + u;
|
|
*next++ = '.';
|
|
n++;
|
|
} while (n < 4);
|
|
|
|
*--next = 0;
|
|
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
static int sigar_ether_ntoa(char *buff, unsigned char *ptr)
|
|
{
|
|
sprintf(buff, "%02X:%02X:%02X:%02X:%02X:%02X",
|
|
(ptr[0] & 0xff), (ptr[1] & 0xff), (ptr[2] & 0xff),
|
|
(ptr[3] & 0xff), (ptr[4] & 0xff), (ptr[5] & 0xff));
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
SIGAR_DECLARE(int) sigar_net_address_equals(sigar_net_address_t *addr1,
|
|
sigar_net_address_t *addr2)
|
|
|
|
{
|
|
if (addr1->family != addr2->family) {
|
|
return EINVAL;
|
|
}
|
|
|
|
switch (addr1->family) {
|
|
case SIGAR_AF_INET:
|
|
return memcmp(&addr1->addr.in, &addr2->addr.in, sizeof(addr1->addr.in));
|
|
case SIGAR_AF_INET6:
|
|
return memcmp(&addr1->addr.in6, &addr2->addr.in6, sizeof(addr1->addr.in6));
|
|
case SIGAR_AF_LINK:
|
|
return memcmp(&addr1->addr.mac, &addr2->addr.mac, sizeof(addr1->addr.mac));
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
#if !defined(WIN32) && !defined(NETWARE) && !defined(__hpux)
|
|
#define sigar_inet_ntop inet_ntop
|
|
#define sigar_inet_ntop_errno errno
|
|
#else
|
|
#define sigar_inet_ntop(af, src, dst, size) NULL
|
|
#define sigar_inet_ntop_errno EINVAL
|
|
#endif
|
|
|
|
SIGAR_DECLARE(int) sigar_net_address_to_string(sigar_t *sigar,
|
|
sigar_net_address_t *address,
|
|
char *addr_str)
|
|
{
|
|
switch (address->family) {
|
|
case SIGAR_AF_INET6:
|
|
if (sigar_inet_ntop(AF_INET6, (const void *)&address->addr.in6,
|
|
addr_str, SIGAR_INET6_ADDRSTRLEN))
|
|
{
|
|
return SIGAR_OK;
|
|
}
|
|
else {
|
|
return sigar_inet_ntop_errno;
|
|
}
|
|
case SIGAR_AF_INET:
|
|
return sigar_inet_ntoa(sigar, address->addr.in, addr_str);
|
|
case SIGAR_AF_UNSPEC:
|
|
return sigar_inet_ntoa(sigar, 0, addr_str); /*XXX*/
|
|
case SIGAR_AF_LINK:
|
|
return sigar_ether_ntoa(addr_str, &address->addr.mac[0]);
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
SIGAR_DECLARE(sigar_uint32_t) sigar_net_address_hash(sigar_net_address_t *address)
|
|
{
|
|
sigar_uint32_t hash = 0;
|
|
unsigned char *data;
|
|
int i=0, size, elts;
|
|
|
|
switch (address->family) {
|
|
case SIGAR_AF_UNSPEC:
|
|
case SIGAR_AF_INET:
|
|
return address->addr.in;
|
|
case SIGAR_AF_INET6:
|
|
data = (unsigned char *)&address->addr.in6;
|
|
size = sizeof(address->addr.in6);
|
|
elts = 4;
|
|
break;
|
|
case SIGAR_AF_LINK:
|
|
data = (unsigned char *)&address->addr.mac;
|
|
size = sizeof(address->addr.mac);
|
|
elts = 2;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
while (i<size) {
|
|
int j=0;
|
|
int component=0;
|
|
while (j<elts && i<size) {
|
|
component = (component << 8) + data[i];
|
|
j++;
|
|
i++;
|
|
}
|
|
hash += component;
|
|
}
|
|
|
|
return hash;
|
|
}
|
|
|
|
SIGAR_DECLARE(const char *)sigar_net_connection_type_get(int type)
|
|
{
|
|
switch (type) {
|
|
case SIGAR_NETCONN_TCP:
|
|
return "tcp";
|
|
case SIGAR_NETCONN_UDP:
|
|
return "udp";
|
|
case SIGAR_NETCONN_RAW:
|
|
return "raw";
|
|
case SIGAR_NETCONN_UNIX:
|
|
return "unix";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
SIGAR_DECLARE(const char *)sigar_net_connection_state_get(int state)
|
|
{
|
|
switch (state) {
|
|
case SIGAR_TCP_ESTABLISHED:
|
|
return "ESTABLISHED";
|
|
case SIGAR_TCP_SYN_SENT:
|
|
return "SYN_SENT";
|
|
case SIGAR_TCP_SYN_RECV:
|
|
return "SYN_RECV";
|
|
case SIGAR_TCP_FIN_WAIT1:
|
|
return "FIN_WAIT1";
|
|
case SIGAR_TCP_FIN_WAIT2:
|
|
return "FIN_WAIT2";
|
|
case SIGAR_TCP_TIME_WAIT:
|
|
return "TIME_WAIT";
|
|
case SIGAR_TCP_CLOSE:
|
|
return "CLOSE";
|
|
case SIGAR_TCP_CLOSE_WAIT:
|
|
return "CLOSE_WAIT";
|
|
case SIGAR_TCP_LAST_ACK:
|
|
return "LAST_ACK";
|
|
case SIGAR_TCP_LISTEN:
|
|
return "LISTEN";
|
|
case SIGAR_TCP_CLOSING:
|
|
return "CLOSING";
|
|
case SIGAR_TCP_IDLE:
|
|
return "IDLE";
|
|
case SIGAR_TCP_BOUND:
|
|
return "BOUND";
|
|
case SIGAR_TCP_UNKNOWN:
|
|
default:
|
|
return "UNKNOWN";
|
|
}
|
|
}
|
|
|
|
SIGAR_DECLARE(char *) sigar_net_interface_flags_to_string(sigar_uint64_t flags, char *buf)
|
|
{
|
|
*buf = '\0';
|
|
|
|
if (flags == 0) {
|
|
strcat(buf, "[NO FLAGS] ");
|
|
}
|
|
if (flags & SIGAR_IFF_UP) {
|
|
strcat(buf, "UP ");
|
|
}
|
|
if (flags & SIGAR_IFF_BROADCAST) {
|
|
strcat(buf, "BROADCAST ");
|
|
}
|
|
if (flags & SIGAR_IFF_DEBUG) {
|
|
strcat(buf, "DEBUG ");
|
|
}
|
|
if (flags & SIGAR_IFF_LOOPBACK) {
|
|
strcat(buf, "LOOPBACK ");
|
|
}
|
|
if (flags & SIGAR_IFF_POINTOPOINT) {
|
|
strcat(buf, "POINTOPOINT ");
|
|
}
|
|
if (flags & SIGAR_IFF_NOTRAILERS) {
|
|
strcat(buf, "NOTRAILERS ");
|
|
}
|
|
if (flags & SIGAR_IFF_RUNNING) {
|
|
strcat(buf, "RUNNING ");
|
|
}
|
|
if (flags & SIGAR_IFF_NOARP) {
|
|
strcat(buf, "NOARP ");
|
|
}
|
|
if (flags & SIGAR_IFF_PROMISC) {
|
|
strcat(buf, "PROMISC ");
|
|
}
|
|
if (flags & SIGAR_IFF_ALLMULTI) {
|
|
strcat(buf, "ALLMULTI ");
|
|
}
|
|
if (flags & SIGAR_IFF_MULTICAST) {
|
|
strcat(buf, "MULTICAST ");
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
#ifdef WIN32
|
|
#define NET_SERVICES_FILE "C:\\windows\\system32\\drivers\\etc\\services"
|
|
#else
|
|
#define NET_SERVICES_FILE "/etc/services"
|
|
#endif
|
|
|
|
static int net_services_parse(sigar_cache_t *names, char *type)
|
|
{
|
|
FILE *fp;
|
|
char buffer[8192], *ptr;
|
|
char *file;
|
|
|
|
|
|
if (!(file = getenv("SIGAR_NET_SERVICES_FILE"))) {
|
|
file = NET_SERVICES_FILE;
|
|
}
|
|
|
|
if (!(fp = fopen(file, "r"))) {
|
|
return errno;
|
|
}
|
|
|
|
while ((ptr = fgets(buffer, sizeof(buffer), fp))) {
|
|
int port;
|
|
char name[256], proto[56];
|
|
sigar_cache_entry_t *entry;
|
|
|
|
while (sigar_isspace(*ptr)) {
|
|
++ptr;
|
|
}
|
|
if ((*ptr == '#') || (*ptr == '\0')) {
|
|
continue;
|
|
}
|
|
|
|
if (sscanf(ptr, "%s%d/%s", name, &port, proto) != 3) {
|
|
continue;
|
|
}
|
|
if (!strEQ(type, proto)) {
|
|
continue;
|
|
}
|
|
|
|
entry = sigar_cache_get(names, port);
|
|
if (!entry->value) {
|
|
entry->value = strdup(name);
|
|
}
|
|
}
|
|
|
|
fclose(fp);
|
|
return SIGAR_OK;
|
|
}
|
|
|
|
SIGAR_DECLARE(char *)sigar_net_services_name_get(sigar_t *sigar,
|
|
int protocol, unsigned long port)
|
|
{
|
|
sigar_cache_entry_t *entry;
|
|
sigar_cache_t **names;
|
|
char *pname;
|
|
|
|
switch (protocol) {
|
|
case SIGAR_NETCONN_TCP:
|
|
names = &sigar->net_services_tcp;
|
|
pname = "tcp";
|
|
break;
|
|
case SIGAR_NETCONN_UDP:
|
|
names = &sigar->net_services_udp;
|
|
pname = "udp";
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
if (*names == NULL) {
|
|
*names = sigar_cache_new(1024);
|
|
net_services_parse(*names, pname);
|
|
}
|
|
|
|
if ((entry = sigar_cache_find(*names, port))) {
|
|
return (char *)entry->value;
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
SIGAR_DECLARE(int) sigar_cpu_perc_calculate(sigar_cpu_t *prev,
|
|
sigar_cpu_t *curr,
|
|
sigar_cpu_perc_t *perc)
|
|
{
|
|
double diff_user, diff_sys, diff_nice, diff_idle;
|
|
double diff_wait, diff_irq, diff_soft_irq, diff_stolen;
|
|
double diff_total;
|
|
|
|
diff_user = (sigar_int64_t)(curr->user - prev->user);
|
|
diff_sys = (sigar_int64_t)(curr->sys - prev->sys);
|
|
diff_nice = (sigar_int64_t)(curr->nice - prev->nice);
|
|
diff_idle = (sigar_int64_t)(curr->idle - prev->idle);
|
|
diff_wait = (sigar_int64_t)(curr->wait - prev->wait);
|
|
diff_irq = (sigar_int64_t)(curr->irq - prev->irq);
|
|
diff_soft_irq = (sigar_int64_t)(curr->soft_irq - prev->soft_irq);
|
|
diff_stolen = (sigar_int64_t)(curr->stolen - prev->stolen);
|
|
|
|
diff_user = diff_user < 0 ? 0 : diff_user;
|
|
diff_sys = diff_sys < 0 ? 0 : diff_sys;
|
|
diff_nice = diff_nice < 0 ? 0 : diff_nice;
|
|
diff_idle = diff_idle < 0 ? 0 : diff_idle;
|
|
diff_wait = diff_wait < 0 ? 0 : diff_wait;
|
|
diff_irq = diff_irq < 0 ? 0 : diff_irq;
|
|
diff_soft_irq = diff_soft_irq < 0 ? 0 : diff_soft_irq;
|
|
diff_stolen = diff_stolen < 0 ? 0 : diff_stolen;
|
|
|
|
diff_total =
|
|
diff_user + diff_sys + diff_nice + diff_idle +
|
|
diff_wait + diff_irq + diff_soft_irq +
|
|
diff_stolen;
|
|
|
|
perc->user = diff_user / diff_total;
|
|
perc->sys = diff_sys / diff_total;
|
|
perc->nice = diff_nice / diff_total;
|
|
perc->idle = diff_idle / diff_total;
|
|
perc->wait = diff_wait / diff_total;
|
|
perc->irq = diff_irq / diff_total;
|
|
perc->soft_irq = diff_soft_irq / diff_total;
|
|
perc->stolen = diff_stolen / diff_total;
|
|
|
|
perc->combined =
|
|
perc->user + perc->sys + perc->nice + perc->wait;
|
|
|
|
return SIGAR_OK;
|
|
}
|