/* vi: set sw=4 ts=4: */ /* * Mini run-parts implementation for busybox * * * 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 GPL v2, see file LICENSE in this tarball for details. */ /* 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 a the * report mode. As the original run-parts support only long options, I've * broken compatibility because the BusyBox policy doesn't allow them. * The supported options are: * -t test. Print the name of the files to be executed, without * execute them. * -a ARG argument. Pass ARG as an argument the program executed. It can * be repeated to pass multiple arguments. * -u MASK umask. Set the umask of the program executed to MASK. */ /* TODO * done - convert calls to error in perror... and remove error() * done - convert malloc/realloc to their x... counterparts * done - remove catch_sigchld * done - use bb's concat_path_file() * done - declare run_parts_main() as extern and any other function as static? */ #include "busybox.h" #include <getopt.h> #include <stdlib.h> static const struct option runparts_long_options[] = { { "test", 0, NULL, 't' }, { "umask", 1, NULL, 'u' }, { "arg", 1, NULL, 'a' }, { 0, 0, 0, 0 } }; extern char **environ; /* run_parts_main */ /* Process options */ int run_parts_main(int argc, char **argv) { char **args = xmalloc(2 * sizeof(char *)); unsigned char test_mode = 0; unsigned short argcount = 1; int opt; umask(022); while ((opt = getopt_long (argc, argv, "tu:a:", runparts_long_options, NULL)) > 0) { switch (opt) { /* Enable test mode */ case 't': test_mode++; break; /* Set the umask of the programs executed */ case 'u': /* Check and set the umask of the program executed. As stated in the original * run-parts, the octal conversion in libc is not foolproof; it will take the * 8 and 9 digits under some circumstances. We'll just have to live with it. */ umask(bb_xgetlarg(optarg, 8, 0, 07777)); break; /* Pass an argument to the programs */ case 'a': /* Add an argument to the commands that we will call. * Called once for every argument. */ args = xrealloc(args, (argcount + 2) * (sizeof(char *))); args[argcount++] = optarg; break; default: bb_show_usage(); } } /* We require exactly one argument: the directory name */ if (optind != (argc - 1)) { bb_show_usage(); } args[0] = argv[optind]; args[argcount] = 0; return(run_parts(args, test_mode, environ)); }