Commit | Line | Data |
---|---|---|
563bb122 | 1 | static char *sccsid = "@(#)rm.c 4.4 (Berkeley) %G%"; |
ae80f4a2 | 2 | int errcode; |
563bb122 | 3 | short uid, euid; |
ae80f4a2 BJ |
4 | |
5 | #include <stdio.h> | |
6 | #include <sys/types.h> | |
7 | #include <sys/stat.h> | |
8 | #include <sys/dir.h> | |
9 | ||
10 | char *sprintf(); | |
11 | ||
12 | main(argc, argv) | |
13 | char *argv[]; | |
14 | { | |
15 | register char *arg; | |
16 | int fflg, iflg, rflg; | |
17 | ||
18 | fflg = 0; | |
19 | if (isatty(0) == 0) | |
20 | fflg++; | |
21 | iflg = 0; | |
22 | rflg = 0; | |
563bb122 BJ |
23 | uid = getuid(); |
24 | euid = geteuid(); | |
ae80f4a2 BJ |
25 | while(argc>1 && argv[1][0]=='-') { |
26 | arg = *++argv; | |
27 | argc--; | |
ca02483b BJ |
28 | |
29 | /* | |
30 | * all files following a null option are considered file names | |
31 | */ | |
32 | if (*(arg+1) == '\0') break; | |
33 | ||
ae80f4a2 BJ |
34 | while(*++arg != '\0') |
35 | switch(*arg) { | |
36 | case 'f': | |
37 | fflg++; | |
38 | break; | |
39 | case 'i': | |
40 | iflg++; | |
41 | break; | |
42 | case 'r': | |
43 | rflg++; | |
44 | break; | |
45 | default: | |
46 | printf("rm: unknown option %s\n", *argv); | |
47 | exit(1); | |
48 | } | |
49 | } | |
50 | while(--argc > 0) { | |
51 | if(!strcmp(*++argv, "..")) { | |
52 | fprintf(stderr, "rm: cannot remove `..'\n"); | |
53 | continue; | |
54 | } | |
55 | rm(*argv, fflg, rflg, iflg, 0); | |
56 | } | |
57 | ||
58 | exit(errcode); | |
59 | } | |
60 | ||
61 | rm(arg, fflg, rflg, iflg, level) | |
62 | char arg[]; | |
63 | { | |
64 | struct stat buf; | |
65 | struct direct direct; | |
66 | char name[100]; | |
67 | int d; | |
68 | ||
69 | if(stat(arg, &buf)) { | |
70 | if (fflg==0) { | |
71 | printf("rm: %s nonexistent\n", arg); | |
72 | ++errcode; | |
73 | } | |
74 | return; | |
75 | } | |
76 | if ((buf.st_mode&S_IFMT) == S_IFDIR) { | |
77 | if(rflg) { | |
78 | if (access(arg, 02) < 0) { | |
79 | if (fflg==0) | |
80 | printf("%s not changed\n", arg); | |
81 | errcode++; | |
82 | return; | |
83 | } | |
84 | if(iflg && level!=0) { | |
28c2b1a2 | 85 | printf("remove directory %s? ", arg); |
ae80f4a2 BJ |
86 | if(!yes()) |
87 | return; | |
88 | } | |
89 | if((d=open(arg, 0)) < 0) { | |
28c2b1a2 | 90 | printf("rm: cannot read %s?\n", arg); |
ae80f4a2 BJ |
91 | exit(1); |
92 | } | |
93 | while(read(d, (char *)&direct, sizeof(direct)) == sizeof(direct)) { | |
94 | if(direct.d_ino != 0 && !dotname(direct.d_name)) { | |
95 | sprintf(name, "%s/%.14s", arg, direct.d_name); | |
96 | rm(name, fflg, rflg, iflg, level+1); | |
97 | } | |
98 | } | |
99 | close(d); | |
100 | errcode += rmdir(arg, iflg); | |
101 | return; | |
102 | } | |
103 | printf("rm: %s directory\n", arg); | |
104 | ++errcode; | |
105 | return; | |
106 | } | |
107 | ||
108 | if(iflg) { | |
28c2b1a2 | 109 | printf("rm: remove %s? ", arg); |
ae80f4a2 BJ |
110 | if(!yes()) |
111 | return; | |
112 | } | |
113 | else if(!fflg) { | |
114 | if (access(arg, 02)<0) { | |
563bb122 BJ |
115 | if (uid == buf.st_uid || euid == buf.st_uid) { |
116 | printf("rm: override protection %o for %s? ", | |
117 | buf.st_mode&0777, arg); | |
118 | if(!yes()) | |
119 | return; | |
120 | } else { | |
121 | printf("rm: %s: not owner.\n", arg); | |
ae80f4a2 | 122 | return; |
563bb122 | 123 | } |
ae80f4a2 BJ |
124 | } |
125 | } | |
126 | if(unlink(arg) && (fflg==0 || iflg)) { | |
127 | printf("rm: %s not removed\n", arg); | |
128 | ++errcode; | |
129 | } | |
130 | } | |
131 | ||
132 | dotname(s) | |
133 | char *s; | |
134 | { | |
135 | if(s[0] == '.') | |
136 | if(s[1] == '.') | |
137 | if(s[2] == '\0') | |
138 | return(1); | |
139 | else | |
140 | return(0); | |
141 | else if(s[1] == '\0') | |
142 | return(1); | |
143 | return(0); | |
144 | } | |
145 | ||
146 | rmdir(f, iflg) | |
147 | char *f; | |
148 | { | |
149 | int status, i; | |
150 | ||
151 | if(dotname(f)) | |
152 | return(0); | |
153 | if(iflg) { | |
28c2b1a2 | 154 | printf("rm: remove %s? ", f); |
ae80f4a2 BJ |
155 | if(!yes()) |
156 | return(0); | |
157 | } | |
158 | while((i=fork()) == -1) | |
159 | sleep(3); | |
160 | if(i) { | |
161 | wait(&status); | |
162 | return(status); | |
163 | } | |
164 | execl("/bin/rmdir", "rmdir", f, 0); | |
165 | execl("/usr/bin/rmdir", "rmdir", f, 0); | |
166 | printf("rm: can't find rmdir\n"); | |
167 | exit(1); | |
168 | } | |
169 | ||
170 | yes() | |
171 | { | |
172 | int i, b; | |
173 | ||
174 | i = b = getchar(); | |
175 | while(b != '\n' && b != EOF) | |
176 | b = getchar(); | |
177 | return(i == 'y'); | |
178 | } |