1 /* vi: set sw=4 ts=4: */
3 * Mini run-parts implementation for busybox
5 * Copyright (C) 2007 Bernhard Fischer
7 * Based on a older version that was in busybox which was 1k big..
8 * Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
10 * Based on the Debian run-parts program, version 1.15
11 * Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
12 * Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
15 * Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
18 /* This is my first attempt to write a program in C (well, this is my first
19 * attempt to write a program! :-) . */
21 /* This piece of code is heavily based on the original version of run-parts,
22 * taken from debian-utils. I've only removed the long options and a the
23 * report mode. As the original run-parts support only long options, I've
24 * broken compatibility because the BusyBox policy doesn't allow them.
25 * The supported options are:
26 * -t test. Print the name of the files to be executed, without
28 * -a ARG argument. Pass ARG as an argument the program executed. It can
29 * be repeated to pass multiple arguments.
30 * -u MASK umask. Set the umask of the program executed to MASK.
37 #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
38 static const struct option runparts_long_options[] = {
39 { "arg", 1, NULL, 'a' },
40 { "umask", 1, NULL, 'u' },
41 { "test", 0, NULL, 't' },
42 #if ENABLE_FEATURE_RUN_PARTS_FANCY
43 { "list", 0, NULL, 'l' },
44 //XXX:TODO: { "reverse", 0, NULL, 'r' },
45 //XXX:TODO: { "verbose", 0, NULL, 'v' },
53 char *cmd[10]; /* merely arbitrary arg count */
55 #define G (*(struct globals*)&bb_common_bufsiz1)
58 /* True or false? Is this a valid filename (upper/lower alpha, digits,
59 * underscores, and hyphens only?)
61 static bool invalid_name(const char *c)
65 while (*c && (isalnum(*c) || *c == '_' || *c == '-'))
68 return *c; /* TRUE (!0) if terminating NUL is not reached */
71 #define RUN_PARTS_OPT_a (1<<0)
72 #define RUN_PARTS_OPT_u (1<<1)
73 #define RUN_PARTS_OPT_t (1<<2)
74 #if ENABLE_FEATURE_RUN_PARTS_FANCY
75 #define RUN_PARTS_OPT_l (1<<3)
78 #define test_mode (G.mode & RUN_PARTS_OPT_t)
79 #if ENABLE_FEATURE_RUN_PARTS_FANCY
80 #define list_mode (G.mode & RUN_PARTS_OPT_l)
85 static int act(const char *file, struct stat *statbuf, void *args, int depth)
93 ((!list_mode && access(file, X_OK)) ||
95 !(statbuf->st_mode & (S_IFREG | S_IFLNK))) )
98 if (test_mode || list_mode) {
102 G.cmd[0] = (char*)file;
103 ret = wait4pid(spawn(G.cmd));
105 bb_perror_msg("failed to exec %s", file);
106 } else if (ret > 0) {
107 bb_error_msg("%s exited with return code %d", file, ret);
112 int run_parts_main(int argc, char **argv);
113 int run_parts_main(int argc, char **argv)
116 llist_t *arg_list = NULL;
120 /* We require exactly one argument: the directory name */
121 opt_complementary = "=1:a::";
122 #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
123 applet_long_options = runparts_long_options;
125 tmp = getopt32(argc, argv, "a:u:t"USE_FEATURE_RUN_PARTS_FANCY("l"), &arg_list, &umask_p);
126 G.mode = tmp &~ (RUN_PARTS_OPT_a|RUN_PARTS_OPT_u);
127 if (tmp & RUN_PARTS_OPT_u) {
128 /* Check and set the umask of the program executed.
129 * As stated in the original run-parts, the octal conversion in
130 * libc is not foolproof; it will take the 8 and 9 digits under
131 * some circumstances. We'll just have to live with it.
133 umask(xstrtoul_range(umask_p, 8, 0, 07777));
135 for (tmp = 1; arg_list; arg_list = arg_list->link, tmp++)
136 G.cmd[tmp] = arg_list->data;
137 /* G.cmd[tmp] = NULL; - G is already zeroed out */
138 if (!recursive_action(argv[argc - 1],
139 ACTION_RECURSE|ACTION_FOLLOWLINKS,
140 act, /* file action */
141 act, /* dir action */
142 NULL, /* user data */