mirror of https://github.com/BOINC/boinc.git
273 lines
6.7 KiB
C
273 lines
6.7 KiB
C
// The contents of this file are subject to the Mozilla Public License
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// Version 1.0 (the "License"); you may not use this file except in
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// compliance with the License. You may obtain a copy of the License at
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// http://www.mozilla.org/MPL/
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//
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// Software distributed under the License is distributed on an "AS IS"
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// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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// License for the specific language governing rights and limitations
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// under the License.
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//
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// The Original Code is the Berkeley Open Infrastructure for Network Computing.
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//
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// The Initial Developer of the Original Code is the SETI@home project.
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// Portions created by the SETI@home project are Copyright (C) 2002
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// University of California at Berkeley. All Rights Reserved.
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//
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// Contributor(s):
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_SYS_STATVFS_H
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#include <sys/statvfs.h>
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#endif
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#include <sys/stat.h>
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#if HAVE_SYS_SWAP_H
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#include <sys/swap.h>
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#endif
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#if HAVE_SYS_SYSTEMINFO_H
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#include <sys/systeminfo.h>
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#endif
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#if HAVE_SYS_UTSNAME_H
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#include <sys/utsname.h>
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#endif
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#if HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#if HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include "client_types.h"
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#include "error_numbers.h"
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// functions to get name/addr of local host
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// Returns the domain of the local host
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// TODO: Should the 256 be MAXHOSTNAMELEN instead?
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//
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int get_local_domain_name(char* p) {
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char buf[256];
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if(p==NULL) {
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fprintf(stderr, "error: get_local_domain_name: unexpected NULL pointer p\n");
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return ERR_NULL;
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}
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gethostname(buf, 256);
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struct hostent* he = gethostbyname(buf);
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strcpy(p, he->h_name);
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return 0;
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}
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// Gets the ip address of the local host
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//
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int get_local_ip_addr(int& p) {
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char buf[256];
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struct in_addr addr;
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#if HAVE_NETDB_H
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gethostname(buf, 256);
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struct hostent* he = gethostbyname(buf);
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memcpy(&addr, he->h_addr_list[0], sizeof(addr));
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p = addr.s_addr;
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#endif
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return 0;
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}
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// Returns the name of the local host
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// TODO: Should the 256 be MAXHOSTNAMELEN instead?
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//
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int get_local_ip_addr_str(char* p) {
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char buf[256];
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if(p==NULL) {
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fprintf(stderr, "error: get_local_ip_addr_str: unexpected NULL pointer p\n");
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return ERR_NULL;
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}
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#if HAVE_NETDB_H
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struct in_addr addr;
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gethostname(buf, 256);
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struct hostent* he = gethostbyname(buf);
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memcpy(&addr, he->h_addr_list[0], sizeof(addr));
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strcpy(p, inet_ntoa(addr));
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#endif
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return 0;
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}
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// Converts a int ip address to a string representation (i.e. "66.218.71.198")
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//
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char* ip_addr_string(int ip_addr) {
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in_addr ia;
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ia.s_addr = ip_addr;
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return inet_ntoa(ia);
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}
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// Returns the number of seconds difference from UTC
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//
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int get_timezone( void ) {
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tzset();
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// TODO: take daylight savings time into account
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#ifdef __timezone
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tz = __timezone;
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#elif timezone
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tz = timezone;
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#else
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time_t cur_time;
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struct tm *time_data;
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cur_time = time(NULL);
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time_data = localtime( &cur_time );
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return time_data->tm_gmtoff;
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#endif
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}
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// Returns true if the host is currently running off battery power
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// TODO: port this to other platforms (Windows, Mac OS X, others?)
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//
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bool host_is_running_on_batteries() {
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float x1, x2;
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int i1, i2;
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// the following only works on Linux.
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// Need to find something else for other systems
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//
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FILE* f = fopen("/proc/apm", "r");
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if (!f) return false;
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// Supposedly we're on batteries if the 4th entry is zero.
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//
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fscanf(f, "%f %f %x %x", &x1, &x2, &i1, &i2);
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return (i2 == 0);
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}
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#ifdef linux
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// Determine the memory specifications for this host, including RAM and swap space
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//
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void parse_meminfo(HOST_INFO& host) {
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char buf[256];
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FILE* f = fopen("/proc/meminfo", "r");
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if (!f) return;
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while (fgets(buf, 256, f)) {
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if (strstr(buf, "Mem:") == buf) {
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sscanf(buf, "Mem: %lf", &host.m_nbytes);
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}
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if (strstr(buf, "Swap:") == buf) {
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sscanf(buf, "Swap: %lf", &host.m_swap);
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}
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}
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fclose(f);
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}
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// Unfortunately the format of /proc/cpuinfo is not standardized.
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// See http://people.nl.linux.org/~hch/cpuinfo/ for some examples.
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// The following is for Redhat Linux 2.2.14.
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// TODO: get this to work on all platforms
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void parse_cpuinfo(HOST_INFO& host) {
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char buf[256];
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int n;
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FILE* f = fopen("/proc/cpuinfo", "r");
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if (!f) return;
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host.p_ncpus = 1;
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while (fgets(buf, 256, f)) {
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if (strstr(buf, "vendor_id\t: ") == buf) {
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sscanf(buf, "vendor_id\t: %s", host.p_vendor);
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}
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if (strstr(buf, "model name\t: ") == buf) {
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sscanf(buf, "model name\t: %s", host.p_model);
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}
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if (strstr(buf, "cache size\t: ") == buf) {
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sscanf(buf, "cache size\t: %d", &n);
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host.m_cache = n*1024;
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}
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}
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fclose(f);
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}
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#endif
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#if HAVE_SYS_UTSNAME_H
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// Puts the operating system name and version into the HOST_INFO structure
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//
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void get_osinfo(HOST_INFO& host) {
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struct utsname u;
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uname(&u);
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strcpy(host.os_name, u.sysname);
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strcpy(host.os_version, u.release);
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}
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#endif
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// General function to get all relevant host information
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//
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int get_host_info(HOST_INFO& host) {
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host.m_nbytes = 0;
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host.m_cache = 0;
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host.m_swap = 0;
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#if HAVE_SYS_SYSTEMINFO_H
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struct statvfs foo;
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char buf[256];
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memset(&host, 0, sizeof(host));
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get_local_domain_name(host.domain_name);
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get_local_ip_addr_str(host.ip_addr);
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statvfs(".", &foo);
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host.d_total = (double)foo.f_bsize * (double)foo.f_blocks;
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host.d_free = (double)foo.f_bsize * (double)foo.f_bavail;
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int i, n;
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sysinfo(SI_SYSNAME, host.os_name, sizeof(host.os_name));
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sysinfo(SI_RELEASE, host.os_version, sizeof(host.os_version));
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sysinfo(SI_HW_SERIAL, host.serialnum, sizeof(host.serialnum));
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host.p_ncpus = sysconf(_SC_NPROCESSORS_ONLN);
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host.m_nbytes = (double)sysconf(_SC_PAGESIZE)
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* (double)sysconf(_SC_PHYS_PAGES);
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swaptbl_t* s;
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n = swapctl(SC_GETNSWP, 0);
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s = (swaptbl_t*)malloc(n*sizeof(swapent_t) + sizeof(struct swaptable));
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for (i=0; i<n; i++) {
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s->swt_ent[i].ste_path = buf;
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}
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s->swt_n = n;
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n = swapctl(SC_LIST, s);
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for (i=0; i<n; i++) {
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host.m_swap += 512.*(double)s->swt_ent[i].ste_length;
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}
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#endif
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#ifdef linux
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memset(&host, 0, sizeof(host));
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parse_cpuinfo(host);
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parse_meminfo(host);
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#endif
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get_local_domain_name(host.domain_name);
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get_local_ip_addr_str(host.ip_addr);
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host.timezone = get_timezone();
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#ifdef HAVE_SYS_UTSNAME_H
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get_osinfo(host);
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#endif
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return 0;
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}
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