1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/* vi: set sw=4 ts=4: */
/*
* Mini run-parts implementation for busybox
*
* Copyright (C) 2007 Bernhard Reutner-Fischer
*
* Based on a older version that was in busybox which was 1k big.
* Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
*
* Based on the Debian run-parts program, version 1.15
* Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
* Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* This is my first attempt to write a program in C (well, this is my first
* attempt to write a program! :-) . */
/* This piece of code is heavily based on the original version of run-parts,
* taken from debian-utils. I've only removed the long options and the
* report mode. As the original run-parts support only long options, I've
* broken compatibility because the BusyBox policy doesn't allow them.
*/
//config:config RUN_PARTS
//config: bool "run-parts (5.6 kb)"
//config: default y
//config: help
//config: run-parts is a utility designed to run all the scripts in a directory.
//config:
//config: It is useful to set up a directory like cron.daily, where you need to
//config: execute all the scripts in that directory.
//config:
//config: In this implementation of run-parts some features (such as report
//config: mode) are not implemented.
//config:
//config: Unless you know that run-parts is used in some of your scripts
//config: you can safely say N here.
//config:
//config:config FEATURE_RUN_PARTS_LONG_OPTIONS
//config: bool "Enable long options"
//config: default y
//config: depends on RUN_PARTS && LONG_OPTS
//config:
//config:config FEATURE_RUN_PARTS_FANCY
//config: bool "Support additional arguments"
//config: default y
//config: depends on RUN_PARTS
//config: help
//config: Support additional options:
//config: -l --list print the names of the all matching files (not
//config: limited to executables), but don't actually run them.
//applet:IF_RUN_PARTS(APPLET_ODDNAME(run-parts, run_parts, BB_DIR_BIN, BB_SUID_DROP, run_parts))
//kbuild:lib-$(CONFIG_RUN_PARTS) += run_parts.o
//usage:#define run_parts_trivial_usage
//usage: "[-a ARG]... [-u UMASK] "
//usage: IF_FEATURE_RUN_PARTS_LONG_OPTIONS("[--reverse] [--test] [--exit-on-error] "IF_FEATURE_RUN_PARTS_FANCY("[--list] "))
//usage: "DIRECTORY"
//usage:#define run_parts_full_usage "\n\n"
//usage: "Run a bunch of scripts in DIRECTORY\n"
//usage: "\n -a ARG Pass ARG as argument to scripts"
//usage: "\n -u UMASK Set UMASK before running scripts"
//usage: IF_FEATURE_RUN_PARTS_LONG_OPTIONS(
//usage: "\n --reverse Reverse execution order"
//usage: "\n --test Dry run"
//usage: "\n --exit-on-error Exit if a script exits with non-zero"
//usage: IF_FEATURE_RUN_PARTS_FANCY(
//usage: "\n --list Print names of matching files even if they are not executable"
//usage: )
//usage: )
//usage:
//usage:#define run_parts_example_usage
//usage: "$ run-parts -a start /etc/init.d\n"
//usage: "$ run-parts -a stop=now /etc/init.d\n\n"
//usage: "Let's assume you have a script foo/dosomething:\n"
//usage: "#!/bin/sh\n"
//usage: "for i in $*; do eval $i; done; unset i\n"
//usage: "case \"$1\" in\n"
//usage: "start*) echo starting something;;\n"
//usage: "stop*) set -x; shutdown -h $stop;;\n"
//usage: "esac\n\n"
//usage: "Running this yields:\n"
//usage: "$run-parts -a stop=+4m foo/\n"
//usage: "+ shutdown -h +4m"
#include "libbb.h"
#include "common_bufsiz.h"
struct globals {
char **names;
int cur;
char *cmd[2 /* using 1 provokes compiler warning */];
} FIX_ALIASING;
#define G (*(struct globals*)bb_common_bufsiz1)
#define names (G.names)
#define cur (G.cur )
#define cmd (G.cmd )
#define INIT_G() do { setup_common_bufsiz(); } while (0)
enum { NUM_CMD = (COMMON_BUFSIZE - sizeof(G)) / sizeof(cmd[0]) - 1 };
enum {
OPT_a = (1 << 0),
OPT_u = (1 << 1),
OPT_r = (1 << 2) * ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS,
OPT_t = (1 << 3) * ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS,
OPT_e = (1 << 4) * ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS,
OPT_l = (1 << 5) * ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
* ENABLE_FEATURE_RUN_PARTS_FANCY,
};
/* Is this a valid filename (upper/lower alpha, digits,
* underscores, and hyphens only?)
*/
static bool invalid_name(const char *c)
{
c = bb_basename(c);
while (*c && (isalnum(*c) || *c == '_' || *c == '-'))
c++;
return *c; /* TRUE (!0) if terminating NUL is not reached */
}
static int bb_alphasort(const void *p1, const void *p2)
{
int r = strcmp(*(char **) p1, *(char **) p2);
return (option_mask32 & OPT_r) ? -r : r;
}
static int FAST_FUNC act(const char *file, struct stat *statbuf, void *args UNUSED_PARAM, int depth)
{
if (depth == 1)
return TRUE;
if (depth == 2
&& ( !(statbuf->st_mode & (S_IFREG | S_IFLNK))
|| invalid_name(file)
|| (!(option_mask32 & OPT_l) && access(file, X_OK) != 0))
) {
return SKIP;
}
names = xrealloc_vector(names, 4, cur);
names[cur++] = xstrdup(file);
/*names[cur] = NULL; - xrealloc_vector did it */
return TRUE;
}
#if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS
static const char runparts_longopts[] ALIGN1 =
"arg\0" Required_argument "a"
"umask\0" Required_argument "u"
//TODO: "verbose\0" No_argument "v"
"reverse\0" No_argument "\xf0"
"test\0" No_argument "\xf1"
"exit-on-error\0" No_argument "\xf2"
# if ENABLE_FEATURE_RUN_PARTS_FANCY
"list\0" No_argument "\xf3"
# endif
;
# define GETOPT32 getopt32long
# define LONGOPTS ,runparts_longopts
#else
# define GETOPT32 getopt32
# define LONGOPTS
#endif
int run_parts_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int run_parts_main(int argc UNUSED_PARAM, char **argv)
{
const char *umask_p = "22";
llist_t *arg_list = NULL;
unsigned n;
int ret;
INIT_G();
/* We require exactly one argument: the directory name */
opt_complementary = "=1";
GETOPT32(argv, "a:*u:" LONGOPTS, &arg_list, &umask_p);
umask(xstrtou_range(umask_p, 8, 0, 07777));
n = 1;
while (arg_list && n < NUM_CMD) {
cmd[n++] = llist_pop(&arg_list);
}
/* cmd[n] = NULL; - is already zeroed out */
/* run-parts has to sort executables by name before running them */
recursive_action(argv[optind],
ACTION_RECURSE|ACTION_FOLLOWLINKS,
act, /* file action */
act, /* dir action */
NULL, /* user data */
1 /* depth */
);
if (!names)
return 0;
qsort(names, cur, sizeof(char *), bb_alphasort);
n = 0;
while (1) {
char *name = *names++;
if (!name)
break;
if (option_mask32 & (OPT_t | OPT_l)) {
puts(name);
continue;
}
cmd[0] = name;
ret = spawn_and_wait(cmd);
if (ret == 0)
continue;
n = 1;
if (ret < 0)
bb_perror_msg("can't execute '%s'", name);
else /* ret > 0 */
bb_error_msg("%s: exit status %u", name, ret & 0xff);
if (option_mask32 & OPT_e)
xfunc_die();
}
return n;
}
|
