4.3BSD - /usr/src/old/berknet/netrm.c

   1: static char sccsid[] = "@(#)netrm.c	4.2	(Berkeley)	9/12/82";
   2: 
   3: # include "defs.h"
   4: /* sccs id variable */
   5: static char *netrm_sid = "@(#)netrm.c	1.2";
   6: 
   7: 
   8: /*
   9:  *	netrm - remove an entry from the network queue.
  10:  *
  11:  *	first does a creat to truncate the file to zero length in
  12:  *	case it is being sent. (this stops the daemon!) Next the
  13:  *	file is removed.
  14:  *	must be setuid root
  15:  */
  16: 
  17: char    path[] =    NETRMPATH;
  18: char    pathname[]=     NETRMNAME;
  19: 
  20: int hisuid, hisgid;
  21: static char visit[26];
  22: static struct stat statbuf;
  23: 
  24: main(argc,argv)
  25: char    *argv[];
  26: {
  27:     int cnt, mach, i, all = 0;
  28: 
  29:     if (argc < 2)
  30:     {
  31:         printf("usage: netrm [-] file1 file2 ... filen\n");
  32:         exit(EX_USAGE);
  33:     }
  34: 
  35:     hisuid = getuid();
  36:     hisuid = uidmask(hisuid);
  37:     hisgid = getgid();
  38: 
  39:     if(argv[1][0] == '-'){
  40:         all++;
  41:         argv++;
  42:         argc--;
  43:         }
  44:     cnt = 0;
  45: 
  46:     while (++cnt < argc)rmfile(argv[cnt]);
  47:     if(all){
  48:         visit[chtoinx(local)] = 1;      /* skip this machine */
  49:         for(i = 0; i < MAXINX; i++)
  50:             if((mach = gothru(local,inxtoch(i)))
  51:             && !visit[chtoinx(mach)]){
  52:                 visit[chtoinx(mach)] = 1;
  53:                 senddir[strlen(senddir)-1] = mach;
  54:                 if(chdir(senddir) < 0)
  55:                     continue;
  56:                 pdir(senddir);
  57:             }
  58:     }
  59: }
  60: static pdir(str)
  61:   char *str; {
  62:     DIR *df;
  63:     register struct direct *dp;
  64:     df = opendir(str);
  65:     if(df == NULL){
  66:         perror(str);
  67:         exit(EX_OSFILE);
  68:         }
  69:     while((dp = readdir(df)) != NULL){
  70:         if(dp->d_name[0] != 'd'
  71:         || dp->d_name[1] != 'f'
  72:         || stat(dp->d_name,&statbuf) < 0)
  73:              continue;
  74:         if(guid(statbuf.st_uid,statbuf.st_gid) != hisuid)
  75:             continue;
  76:         /* kludge in file name */
  77:         dp->d_name[3] = dp->d_name[2];
  78:         rmfile(dp->d_name+3);
  79:         }
  80:     closedir(df);
  81:     }
  82: rmfile(str)
  83:   char *str;
  84:   {
  85:     register char *ap, *cp;
  86:     int tt;
  87:     char *ostr,*rem,buf[20];
  88:     ostr = str;
  89:     if(str[0] != 'd' || str[1] != 'f' || str[3] != 'a'){
  90:         strcpy(buf+3,str);
  91:         buf[0] = 'd';
  92:         buf[1] = 'f';
  93:         buf[2] = str[0];
  94:         buf[3] = 'a';
  95:         str = buf;
  96:         }
  97:     cp = path;
  98:     ap = pathname;
  99:     while (*ap++ = *cp++);
 100:     cp = pathname + strlen(pathname) - 10;
 101:     while(*cp++ != 'f');
 102:     cp--;
 103:     cp--;
 104:     rem = cp;
 105:     ap = str;
 106:     while(*cp != '\0' && (*cp++ = *ap++));
 107:     pathname[strlen(pathname) - 11] = str[2];   /* set dir for mach */
 108: 
 109:     if (stat(pathname,&statbuf) < 0) {
 110:         perror(ostr);
 111:         return;
 112:     }
 113: 
 114:     tt = guid(statbuf.st_uid,statbuf.st_gid);
 115:     if(tt != hisuid && hisuid != 0) {
 116:         printf("%s: Permission Denied\n",ostr);
 117:         return;
 118:     }
 119: 
 120:     printf("removing file %s\n",ostr);
 121:     creat(pathname,0600);
 122:     unlink(pathname);
 123:     *rem = 'c';
 124:     unlink(pathname);
 125: }

Defined functions

Defined variables