* 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>
- *
+ *
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* 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
+ * 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:
+ * 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
+ * -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
+/* TODO
* done - convert calls to error in perror... and remove error()
- * done - convert malloc/realloc to their x... counterparts
+ * done - convert malloc/realloc to their x... counterparts
* done - remove catch_sigchld
- * done - use bb's concat_path_file()
+ * done - use bb's concat_path_file()
* done - declare run_parts_main() as extern and any other function as static?
*/
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-/* #include <sys/types.h> */
-#include <sys/wait.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <unistd.h>
#include <getopt.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "busybox.h"
-
-static int test_mode = 0;
-static int exitstatus = 0;
-
-static int argcount = 0, argsize = 0;
-static char **args = 0;
-
-
-/* set_umask */
-/* 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.
- */
-
-static void set_umask (void)
-{
- int mask, result;
-
- /*TODO
- * We must substitute sscanf, according to bb's style guide? */
- result = sscanf (optarg, "%o", &mask);
- if ((result != 1) || (mask > 07777) || (mask < 0)) {
- perror_msg_and_die ("bad umask value");
- }
-
- umask (mask);
-}
-
-/* add_argument */
-/* Add an argument to the commands that we will call. Called once for
- every argument. */
-static void add_argument (char *newarg)
-{
- if (argcount+1 >= argsize) {
- argsize = argsize ? argsize*2 : 4;
- /*TODO if we convert to xrealloc we lose the verbose error message */
- args = realloc(args, argsize * (sizeof(char*)));
- if (!args) {
- perror_msg_and_die ("failed to reallocate memory for arguments");
- }
- }
- args[argcount++] = newarg;
- args[argcount] = 0;
-}
-
-/* valid_name */
-/* True or false? Is this a valid filename (upper/lower alpha, digits,
- * underscores, and hyphens only?)
- */
-
-static int valid_name (const struct dirent *d)
-{
- char *c = d->d_name;
- while (*c) {
- if (!isalnum(*c) && *c!='_' && *c!='-') {
- return 0;
- }
- ++c;
- }
- return 1;
-}
-
-
-/* run_part */
-/* Execute a file */
-
-static void run_part (char *progname)
-{
- int result;
- int pid;
-
-
- if ((pid=fork()) < 0) {
- perror_msg_and_die ("failed to fork");
- }
- else if (!pid) {
- args[0] = progname;
- execv (progname, args);
- perror_msg_and_die ("failed to exec %s", progname);
- }
-
- if (0) {
-
- } else {
-
- waitpid(pid, &result, 0);
- }
-
- if (WIFEXITED (result) && WEXITSTATUS(result)) {
- perror_msg ("%s exited with return code %d", progname, WEXITSTATUS(result));
- exitstatus = 1;
- }
- else if (WIFSIGNALED (result)) {
- perror_msg ("%s exited because of uncaught signal %d", progname,
- WTERMSIG(result));
- exitstatus = 1;
- }
-}
-
-/* run_parts */
-/* Find the parts to run & call run_part() */
-
-static void run_parts (char *dir_name)
-{
- struct dirent **namelist = 0;
- char *filename;
- int entries, i;
- struct stat st;
-
- /* -- */
-
- /* scandir() isn't POSIX, but it makes things easy. */
- entries = scandir (dir_name, &namelist, valid_name, alphasort);
-
- if (entries < 0) {
- perror_msg_and_die ("failed to open directory %s", dir_name);
- }
-
- for (i = 0; i < entries; i++) {
+#include <stdlib.h>
- /* -- */
+#include "libbb.h"
- filename = concat_path_file (dir_name, namelist[i]->d_name);
-
- if (stat (filename, &st) < 0) {
- perror_msg_and_die ("failed to stat component %s", filename);
- }
- if (S_ISREG(st.st_mode) && !access (filename, X_OK)) {
- if (test_mode)
- printf ("run-parts would run %s\n", filename);
- else {
- run_part (filename);
- }
- }
+static const struct option runparts_long_options[] = {
+ { "test", 0, NULL, 't' },
+ { "umask", 1, NULL, 'u' },
+ { "arg", 1, NULL, 'a' },
+ { 0, 0, 0, 0 }
+};
- else if (!S_ISDIR(st.st_mode)) {
- error_msg ("component %s is not an executable plain file",
- filename);
- exitstatus = 1;
- }
-
- free (namelist[i]);
- free (filename);
- }
- free (namelist);
-}
+extern char **environ;
/* run_parts_main */
/* Process options */
-int run_parts_main (int argc, char *argv[])
+int run_parts_main(int argc, char **argv)
{
- umask (022);
- add_argument(0);
-
- for (;;) {
- int c;
+ 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();
+ }
+ }
- opterr = 0;
- c = getopt(argc, argv, "tu:a:");
-
- if (c == EOF)
- break;
- switch (c) {
- case 't': /* Enable test mode */
- test_mode = 1;
- break;
- case 'u': /* Set the umask of the programs executed */
- set_umask ();
- break;
- case 'a': /* Pass an argument to the programs */
- add_argument (optarg);
- break;
- default:
- show_usage();
- }
- }
-
- /* We require exactly one argument: the directory name */
- if (optind != (argc - 1)) {
- show_usage();
- }
+ /* We require exactly one argument: the directory name */
+ if (optind != (argc - 1)) {
+ bb_show_usage();
+ }
- run_parts (argv[optind]);
+ args[0] = argv[optind];
+ args[argcount] = 0;
- return exitstatus;
+ return(run_parts(args, test_mode, environ));
}
projects / oweals / busybox.git / blobdiff