diff options
Diffstat (limited to 'coreutils/chown.c')
-rw-r--r-- | coreutils/chown.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/coreutils/chown.c b/coreutils/chown.c new file mode 100644 index 000000000..fddce7cf1 --- /dev/null +++ b/coreutils/chown.c | |||
@@ -0,0 +1,98 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Mini chown implementation for busybox | ||
4 | * | ||
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> | ||
6 | * | ||
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
8 | */ | ||
9 | |||
10 | /* BB_AUDIT SUSv3 defects - unsupported options -H, -L, and -P. */ | ||
11 | /* BB_AUDIT GNU defects - unsupported long options. */ | ||
12 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */ | ||
13 | |||
14 | #include "busybox.h" | ||
15 | |||
16 | static uid_t uid = -1; | ||
17 | static gid_t gid = -1; | ||
18 | |||
19 | static int (*chown_func)(const char *, uid_t, gid_t) = chown; | ||
20 | |||
21 | #define OPT_RECURSE (option_mask32 & 1) | ||
22 | #define OPT_NODEREF (option_mask32 & 2) | ||
23 | #define OPT_VERBOSE (USE_DESKTOP(option_mask32 & 4) SKIP_DESKTOP(0)) | ||
24 | #define OPT_CHANGED (USE_DESKTOP(option_mask32 & 8) SKIP_DESKTOP(0)) | ||
25 | #define OPT_QUIET (USE_DESKTOP(option_mask32 & 0x10) SKIP_DESKTOP(0)) | ||
26 | #define OPT_STR ("Rh" USE_DESKTOP("vcf")) | ||
27 | |||
28 | /* TODO: | ||
29 | * -H if a command line argument is a symbolic link to a directory, traverse it | ||
30 | * -L traverse every symbolic link to a directory encountered | ||
31 | * -P do not traverse any symbolic links (default) | ||
32 | */ | ||
33 | |||
34 | static int fileAction(const char *fileName, struct stat *statbuf, | ||
35 | void ATTRIBUTE_UNUSED *junk, int depth) | ||
36 | { | ||
37 | // TODO: -H/-L/-P | ||
38 | // if (depth ... && S_ISLNK(statbuf->st_mode)) .... | ||
39 | |||
40 | if (!chown_func(fileName, | ||
41 | (uid == (uid_t)-1) ? statbuf->st_uid : uid, | ||
42 | (gid == (gid_t)-1) ? statbuf->st_gid : gid)) { | ||
43 | if (OPT_VERBOSE | ||
44 | || (OPT_CHANGED && (statbuf->st_uid != uid || statbuf->st_gid != gid)) | ||
45 | ) { | ||
46 | printf("changed ownership of '%s' to %u:%u\n", fileName, uid, gid); | ||
47 | } | ||
48 | return TRUE; | ||
49 | } | ||
50 | if (!OPT_QUIET) | ||
51 | bb_perror_msg("%s", fileName); /* A filename can have % in it... */ | ||
52 | return FALSE; | ||
53 | } | ||
54 | |||
55 | int chown_main(int argc, char **argv) | ||
56 | { | ||
57 | int retval = EXIT_SUCCESS; | ||
58 | char *groupName; | ||
59 | |||
60 | opt_complementary = "-2"; | ||
61 | getopt32(argc, argv, OPT_STR); | ||
62 | |||
63 | if (OPT_NODEREF) chown_func = lchown; | ||
64 | |||
65 | argv += optind; | ||
66 | |||
67 | /* First, check if there is a group name here */ | ||
68 | groupName = strchr(*argv, '.'); | ||
69 | if (!groupName) { | ||
70 | groupName = strchr(*argv, ':'); | ||
71 | } | ||
72 | |||
73 | /* Check for the username and groupname */ | ||
74 | if (groupName) { | ||
75 | *groupName++ = '\0'; | ||
76 | gid = get_ug_id(groupName, bb_xgetgrnam); | ||
77 | } | ||
78 | if (--groupName != *argv) | ||
79 | uid = get_ug_id(*argv, bb_xgetpwnam); | ||
80 | ++argv; | ||
81 | |||
82 | /* Ok, ready to do the deed now */ | ||
83 | do { | ||
84 | if (!recursive_action(*argv, | ||
85 | OPT_RECURSE, // recurse | ||
86 | FALSE, // follow links: TODO: -H/-L/-P | ||
87 | FALSE, // depth first | ||
88 | fileAction, // file action | ||
89 | fileAction, // dir action | ||
90 | NULL, // user data | ||
91 | 0) // depth | ||
92 | ) { | ||
93 | retval = EXIT_FAILURE; | ||
94 | } | ||
95 | } while (*++argv); | ||
96 | |||
97 | return retval; | ||
98 | } | ||