hostinfo.cc revision 1762
112855Sgabeblack@google.com/* 212855Sgabeblack@google.com * Copyright (c) 2003-2005 The Regents of The University of Michigan 312855Sgabeblack@google.com * All rights reserved. 412855Sgabeblack@google.com * 512855Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612855Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712855Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812855Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912855Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012855Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112855Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212855Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312855Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412855Sgabeblack@google.com * this software without specific prior written permission. 1512855Sgabeblack@google.com * 1612855Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712855Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812855Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912855Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012855Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112855Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212855Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312855Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412855Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512855Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612855Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712855Sgabeblack@google.com */ 2812855Sgabeblack@google.com 2912855Sgabeblack@google.com#include <ctype.h> 3012855Sgabeblack@google.com#include <errno.h> 3112855Sgabeblack@google.com#include <math.h> 3212855Sgabeblack@google.com#include <unistd.h> 3312855Sgabeblack@google.com 3412855Sgabeblack@google.com#include <cstdio> 3512855Sgabeblack@google.com#include <cstdlib> 3612855Sgabeblack@google.com#include <cstring> 3712855Sgabeblack@google.com#include <string> 3812855Sgabeblack@google.com 3912855Sgabeblack@google.com#include "base/misc.hh" 4012855Sgabeblack@google.com#include "sim/host.hh" 4112855Sgabeblack@google.com 4212855Sgabeblack@google.comusing namespace std; 4312855Sgabeblack@google.com 4412855Sgabeblack@google.comstring 4512855Sgabeblack@google.com__get_hostname() 4612855Sgabeblack@google.com{ 4712855Sgabeblack@google.com char host[256]; 4812855Sgabeblack@google.com if (gethostname(host, sizeof host) == -1) 4912855Sgabeblack@google.com warn("could not get host name!"); 5012855Sgabeblack@google.com return host; 5112855Sgabeblack@google.com} 5212855Sgabeblack@google.com 5312855Sgabeblack@google.comstring & 5412855Sgabeblack@google.comhostname() 5512855Sgabeblack@google.com{ 5612855Sgabeblack@google.com static string hostname = __get_hostname(); 5712855Sgabeblack@google.com return hostname; 5812855Sgabeblack@google.com} 5912855Sgabeblack@google.com 6012855Sgabeblack@google.comuint64_t 6112855Sgabeblack@google.comprocInfo(char *filename, char *target) 6212855Sgabeblack@google.com{ 6312855Sgabeblack@google.com int done = 0; 64 char line[80]; 65 char format[80]; 66 long usage; 67 68 FILE *fp = fopen(filename, "r"); 69 70 while (fp && !feof(fp) && !done) { 71 if (fgets(line, 80, fp)) { 72 if (strncmp(line, target, strlen(target)) == 0) { 73 snprintf(format, sizeof(format), "%s %%lld", target); 74 sscanf(line, format, &usage); 75 76 fclose(fp); 77 return usage ; 78 } 79 } 80 } 81 82 if (fp) 83 fclose(fp); 84 85 return 0; 86} 87