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