source: trunk/mindi-busybox/debianutils/run_parts.c @ 863

Last change on this file since 863 was 821, checked in by bruno, 13 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 2.9 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Mini run-parts implementation for busybox
4 *
5 *
6 * Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
7 *
8 * Based on the Debian run-parts program, version 1.15
9 *   Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
10 *   Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
11 *
12 *
13 * Licensed under GPL v2, see file LICENSE in this tarball for details.
14 */
15
16/* This is my first attempt to write a program in C (well, this is my first
17 * attempt to write a program! :-) . */
18
19/* This piece of code is heavily based on the original version of run-parts,
20 * taken from debian-utils. I've only removed the long options and a the
21 * report mode. As the original run-parts support only long options, I've
22 * broken compatibility because the BusyBox policy doesn't allow them.
23 * The supported options are:
24 * -t           test. Print the name of the files to be executed, without
25 *              execute them.
26 * -a ARG       argument. Pass ARG as an argument the program executed. It can
27 *              be repeated to pass multiple arguments.
28 * -u MASK      umask. Set the umask of the program executed to MASK. */
29
30/* TODO
31 * done - convert calls to error in perror... and remove error()
32 * done - convert malloc/realloc to their x... counterparts
33 * done - remove catch_sigchld
34 * done - use bb's concat_path_file()
35 * done - declare run_parts_main() as extern and any other function as static?
36 */
37
38#include "busybox.h"
39#include <getopt.h>
40#include <stdlib.h>
41
42
43static const struct option runparts_long_options[] = {
44    { "test",       0,      NULL,       't' },
45    { "umask",      1,      NULL,       'u' },
46    { "arg",        1,      NULL,       'a' },
47    { 0,            0,      0,          0 }
48};
49
50extern char **environ;
51
52/* run_parts_main */
53/* Process options */
54int run_parts_main(int argc, char **argv)
55{
56    char **args = xmalloc(2 * sizeof(char *));
57    unsigned char test_mode = 0;
58    unsigned short argcount = 1;
59    int opt;
60
61    umask(022);
62
63    while ((opt = getopt_long (argc, argv, "tu:a:",
64                    runparts_long_options, NULL)) > 0)
65    {
66        switch (opt) {
67            /* Enable test mode */
68            case 't':
69                test_mode++;
70                break;
71            /* Set the umask of the programs executed */
72            case 'u':
73                /* Check and set the umask of the program executed. As stated in the original
74                 * run-parts, the octal conversion in libc is not foolproof; it will take the
75                 * 8 and 9 digits under some circumstances. We'll just have to live with it.
76                 */
77                umask(bb_xgetlarg(optarg, 8, 0, 07777));
78                break;
79            /* Pass an argument to the programs */
80            case 'a':
81                /* Add an argument to the commands that we will call.
82                 * Called once for every argument. */
83                args = xrealloc(args, (argcount + 2) * (sizeof(char *)));
84                args[argcount++] = optarg;
85                break;
86            default:
87                bb_show_usage();
88        }
89    }
90
91    /* We require exactly one argument: the directory name */
92    if (optind != (argc - 1)) {
93        bb_show_usage();
94    }
95
96    args[0] = argv[optind];
97    args[argcount] = 0;
98
99    return(run_parts(args, test_mode, environ));
100}
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