projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 2b0fde77 KM |
1 | static char sccsid[] = "@(#)netrm.c 4.1 (Berkeley) %G%"; |
| 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 | static struct direct dirbuf; | |
| 24 | ||
| 25 | main(argc,argv) | |
| 26 | char *argv[]; | |
| 27 | { | |
| 28 | int cnt, mach, i, all = 0; | |
| 29 | ||
| 30 | if (argc < 2) | |
| 31 | { | |
| 32 | printf("usage: netrm [-] file1 file2 ... filen\n"); | |
| 33 | exit(EX_USAGE); | |
| 34 | } | |
| 35 | ||
| 36 | hisuid = getuid(); | |
| 37 | hisuid = uidmask(hisuid); | |
| 38 | hisgid = getgid(); | |
| 39 | ||
| 40 | if(argv[1][0] == '-'){ | |
| 41 | all++; | |
| 42 | argv++; | |
| 43 | argc--; | |
| 44 | } | |
| 45 | cnt = 0; | |
| 46 | ||
| 47 | while (++cnt < argc)rmfile(argv[cnt]); | |
| 48 | if(all){ | |
| 49 | visit[chtoinx(local)] = 1; /* skip this machine */ | |
| 50 | for(i = 0; i < MAXINX; i++) | |
| 51 | if((mach = gothru(local,inxtoch(i))) | |
| 52 | && !visit[chtoinx(mach)]){ | |
| 53 | visit[chtoinx(mach)] = 1; | |
| 54 | senddir[strlen(senddir)-1] = mach; | |
| 55 | if(chdir(senddir) < 0) | |
| 56 | continue; | |
| 57 | pdir(senddir); | |
| 58 | } | |
| 59 | } | |
| 60 | } | |
| 61 | static pdir(str) | |
| 62 | char *str; { | |
| 63 | FILE *df; | |
| 64 | df = fopen(str,"r"); | |
| 65 | if(df == NULL){ | |
| 66 | perror(str); | |
| 67 | exit(EX_OSFILE); | |
| 68 | } | |
| 69 | while(fread(&dirbuf,1,sizeof dirbuf,df) == sizeof dirbuf){ | |
| 70 | if(dirbuf.d_ino == 0 | |
| 71 | || dirbuf.d_name[0] != 'd' | |
| 72 | || dirbuf.d_name[1] != 'f' | |
| 73 | || stat(dirbuf.d_name,&statbuf) < 0) | |
| 74 | continue; | |
| 75 | if(guid(statbuf.st_uid,statbuf.st_gid) != hisuid) | |
| 76 | continue; | |
| 77 | /* kludge in file name */ | |
| 78 | dirbuf.d_name[3] = dirbuf.d_name[2]; | |
| 79 | rmfile(dirbuf.d_name+3); | |
| 80 | } | |
| 81 | fclose(df); | |
| 82 | } | |
| 83 | rmfile(str) | |
| 84 | char *str; | |
| 85 | { | |
| 86 | register char *ap, *cp; | |
| 87 | int tt; | |
| 88 | char *ostr,*rem,buf[20]; | |
| 89 | ostr = str; | |
| 90 | if(str[0] != 'd' || str[1] != 'f' || str[3] != 'a'){ | |
| 91 | strcpy(buf+3,str); | |
| 92 | buf[0] = 'd'; | |
| 93 | buf[1] = 'f'; | |
| 94 | buf[2] = str[0]; | |
| 95 | buf[3] = 'a'; | |
| 96 | str = buf; | |
| 97 | } | |
| 98 | cp = path; | |
| 99 | ap = pathname; | |
| 100 | while (*ap++ = *cp++); | |
| 101 | cp = pathname + strlen(pathname) - 10; | |
| 102 | while(*cp++ != 'f'); | |
| 103 | cp--; | |
| 104 | cp--; | |
| 105 | rem = cp; | |
| 106 | ap = str; | |
| 107 | while(*cp != '\0' && (*cp++ = *ap++)); | |
| 108 | pathname[strlen(pathname) - 11] = str[2]; /* set dir for mach */ | |
| 109 | ||
| 110 | if (stat(pathname,&statbuf) < 0) { | |
| 111 | perror(ostr); | |
| 112 | return; | |
| 113 | } | |
| 114 | ||
| 115 | tt = guid(statbuf.st_uid,statbuf.st_gid); | |
| 116 | if(tt != hisuid && hisuid != 0) { | |
| 117 | printf("%s: Permission Denied\n",ostr); | |
| 118 | return; | |
| 119 | } | |
| 120 | ||
| 121 | printf("removing file %s\n",ostr); | |
| 122 | creat(pathname,0600); | |
| 123 | unlink(pathname); | |
| 124 | *rem = 'c'; | |
| 125 | unlink(pathname); | |
| 126 | } |