projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d7ab2ea5 | 1 | static char *sccsid = "@(#)rmdir.c 4.4 (Berkeley) %G%"; |
| ff487e30 BJ |
2 | /* |
| 3 | * Remove directory | |
| 4 | */ | |
| 5 | ||
| d7ab2ea5 | 6 | #include <sys/param.h> |
| ff487e30 | 7 | #include <sys/stat.h> |
| c1a06f06 | 8 | #include <ndir.h> |
| ff487e30 BJ |
9 | #include <stdio.h> |
| 10 | ||
| 11 | int Errors = 0; | |
| 12 | char *rindex(); | |
| 13 | char *strcat(); | |
| 14 | char *strcpy(); | |
| 15 | ||
| 16 | main(argc,argv) | |
| 17 | int argc; | |
| 18 | char **argv; | |
| 19 | { | |
| 20 | ||
| 21 | if(argc < 2) { | |
| 22 | fprintf(stderr, "rmdir: arg count\n"); | |
| 23 | exit(1); | |
| 24 | } | |
| 25 | while(--argc) | |
| 26 | rmdir(*++argv); | |
| 27 | exit(Errors!=0); | |
| 28 | } | |
| 29 | ||
| 30 | rmdir(d) | |
| 31 | char *d; | |
| 32 | { | |
| c1a06f06 | 33 | char *np, name[BUFSIZ]; |
| ff487e30 | 34 | struct stat st, cst; |
| c1a06f06 KM |
35 | struct direct *dp; |
| 36 | DIR *dirp; | |
| ff487e30 BJ |
37 | |
| 38 | strcpy(name, d); | |
| 02cdda3f BJ |
39 | |
| 40 | /* eat trailing slashes */ | |
| 41 | np = &(name[strlen(name)-1]); | |
| 42 | while (*np == '/' && np != name) { | |
| 43 | *np = '\0'; | |
| 44 | np--; | |
| 45 | } | |
| 46 | ||
| 47 | /* point after last slash */ | |
| ff487e30 BJ |
48 | if((np = rindex(name, '/')) == NULL) |
| 49 | np = name; | |
| 02cdda3f BJ |
50 | else |
| 51 | np++; | |
| 52 | ||
| 53 | if(!strcmp(np, ".") || !strcmp(np, "..")) { | |
| 54 | fprintf(stderr, "rmdir: cannot remove . or ..\n"); | |
| 55 | ++Errors; | |
| 56 | return; | |
| 57 | } | |
| ff487e30 BJ |
58 | if(stat(name,&st) < 0) { |
| 59 | fprintf(stderr, "rmdir: %s non-existent\n", name); | |
| 60 | ++Errors; | |
| 61 | return; | |
| 62 | } | |
| 63 | if (stat("", &cst) < 0) { | |
| 64 | fprintf(stderr, "rmdir: cannot stat \"\""); | |
| 65 | ++Errors; | |
| 66 | exit(1); | |
| 67 | } | |
| 68 | if((st.st_mode & S_IFMT) != S_IFDIR) { | |
| 69 | fprintf(stderr, "rmdir: %s not a directory\n", name); | |
| 70 | ++Errors; | |
| 71 | return; | |
| 72 | } | |
| 73 | if(st.st_ino==cst.st_ino &&st.st_dev==cst.st_dev) { | |
| 74 | fprintf(stderr, "rmdir: cannot remove current directory\n"); | |
| 75 | ++Errors; | |
| 76 | return; | |
| 77 | } | |
| c1a06f06 | 78 | if((dirp = opendir(name)) == NULL) { |
| ff487e30 BJ |
79 | fprintf(stderr, "rmdir: %s unreadable\n", name); |
| 80 | ++Errors; | |
| 81 | return; | |
| 82 | } | |
| c1a06f06 KM |
83 | while((dp = readdir(dirp)) != NULL) { |
| 84 | if(dp->d_ino == 0) continue; | |
| 85 | if(!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) | |
| ff487e30 BJ |
86 | continue; |
| 87 | fprintf(stderr, "rmdir: %s not empty\n", name); | |
| 88 | ++Errors; | |
| c1a06f06 | 89 | closedir(dirp); |
| ff487e30 BJ |
90 | return; |
| 91 | } | |
| c1a06f06 | 92 | closedir(dirp); |
| ff487e30 BJ |
93 | strcat(name, "/."); |
| 94 | if((access(name, 0)) < 0) { /* name/. non-existent */ | |
| 95 | strcat(name, "."); | |
| 96 | goto unl; | |
| 97 | } | |
| 98 | strcat(name, "."); | |
| 99 | if((access(name, 0)) < 0) /* name/.. non-existent */ | |
| 100 | goto unl2; | |
| 101 | if(access(name, 02)) { | |
| 102 | name[strlen(name)-3] = '\0'; | |
| 103 | fprintf(stderr, "rmdir: %s: no permission\n", name); | |
| 104 | ++Errors; | |
| 105 | return; | |
| 106 | } | |
| 107 | unl: | |
| 108 | unlink(name); /* unlink name/.. */ | |
| 109 | unl2: | |
| 110 | name[strlen(name)-1] = '\0'; | |
| 111 | unlink(name); /* unlink name/. */ | |
| 112 | name[strlen(name)-2] = '\0'; | |
| 113 | if (unlink(name) < 0) { | |
| 114 | fprintf(stderr, "rmdir: %s not removed\n", name); | |
| 115 | ++Errors; | |
| 116 | } | |
| 117 | } |