What is this file? We're not compiling it, and it's Unix only.
This commit is contained in:
Andrew Johnson
@@ -1,161 +0,0 @@
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/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE Versions 3.13.7
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* and higher are distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/*
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* $Id$
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*
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* Author: Jim Kowalkowski
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* Date: 10/22/96
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*
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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void print_error(char* prog);
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main(int argc, char** argv)
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{
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int uid=getuid();
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int nval,fval,n=0,f=0,pos=1,opos;
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int uid_changed=0,sys_max;
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char** args;
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struct rlimit lim;
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if(argc<2 || strcmp(argv[1],"-?")==0 ||
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strcmp(argv[1],"help")==0 || strcmp(argv[1],"-h")==0)
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{
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fprintf(stderr,"Usage: %s [-files value] [-nice value]",argv[0]);
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fprintf(stderr," program_to_run [program options]\n\n");
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fprintf(stderr," -files : Change the maximum number of file ");
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fprintf(stderr,"descriptors the program can open.\n");
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fprintf(stderr," -nice : Change the priority of the program ");
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fprintf(stderr,"up or down by this value\n\n");
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fprintf(stderr,"The priority value range is [-20,20). The lower a\n");
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fprintf(stderr,"program's nice value is, the higher priority it\n");
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fprintf(stderr,"runs at. So -nice -20 results in the highest\n");
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fprintf(stderr,"priority and -nice 19 results in the lowest.\n\n");
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return 1;
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}
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do
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{
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opos=pos;
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if(strcmp(argv[pos],"-nice")==0)
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{
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n=1;
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if(sscanf(argv[++pos],"%d",&nval)!=1)
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{
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fprintf(stderr,"Improper -nice value entered\n");
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return 1;
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}
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++pos;
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}
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if(strcmp(argv[pos],"-files")==0)
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{
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f=1;
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if(sscanf(argv[++pos],"%d",&fval)!=1)
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{
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fprintf(stderr,"Improper -file value entered\n");
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return 1;
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}
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++pos;
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}
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}
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while(pos!=opos && pos<argc);
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if(pos==argc)
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{
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fprintf(stderr,"No program entered, nothing to run\n");
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return 1;
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}
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if(f==0 && n==0)
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fprintf(stderr,"Nothing changed, just running the program\n");
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if(setuid(0)<0)
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{
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/*
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fprintf(stderr,"Cannot change user to root, %s improperly installed,\n",
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argv[0]);
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fprintf(stderr," Program must be installed as root and afterwards\n");
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fprintf(stderr," the command \"chmod +s %s\" must be run\n",argv[0]);
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return 1;
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fprintf(stderr,"Not a root owned program, priority changes will be ");
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fprintf(stderr,"limited.\nFD changes may also be limited.\n");
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*/
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}
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else
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uid_changed=1;
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if(n && nice(nval)<0)
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{
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fprintf(stderr,"Cannot change the priority to %d\n\n",nval);
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if(!uid_changed)
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print_error(argv[0]);
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return 1;
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}
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if(f)
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{
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if(getrlimit(RLIMIT_NOFILE,&lim)<0)
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{
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fprintf(stderr,"Failed to get FD limits\n");
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return 1;
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}
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lim.rlim_cur=fval;
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sys_max=lim.rlim_max;
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if(uid_changed)
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lim.rlim_max=fval;
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/* lim.rlim_max=RLIM_INFINITY; */
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if(setrlimit(RLIMIT_NOFILE,&lim)<0)
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{
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fprintf(stderr,"Failed to set FD max to %d\n",fval);
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fprintf(stderr,"System maximum FD hard limit is %d\n",sys_max);
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print_error(argv[0]);
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return 1;
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}
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}
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if(uid_changed)
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setuid(uid);
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args=(char**)malloc((argc-pos)*sizeof(char*));
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for(n=0;n<(argc-pos);n++) args[n]=argv[pos+n];
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args[n]=NULL;
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if(execvp(argv[pos],args)<0)
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fprintf(stderr,"Cannot execute program\n");
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return 0;
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}
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void print_error(char* prog)
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{
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fprintf(stderr,"\nThe user ID could not be changed to root,\n");
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fprintf(stderr,"so the priority or files you entered is not allowed.\n");
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fprintf(stderr,"You can currently only reduce your priority and cannot\n");
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fprintf(stderr,"go beyond the FD hard limit. Contact your admin and\n");
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fprintf(stderr,"have the program ");
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fprintf(stderr,"installed as a root owned, setuid bit program\n");
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fprintf(stderr,"and you will be able to increase priorities\n");
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fprintf(stderr,"\nHere is how to install this program:\n");
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fprintf(stderr," su root (and enter the password)\n");
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fprintf(stderr," chown root %s\n",prog);
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fprintf(stderr," chmod +s %s\n",prog);
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}
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